diff options
Diffstat (limited to 'indra/llui/lltextbase.cpp')
| -rw-r--r-- | indra/llui/lltextbase.cpp | 5684 |
1 files changed, 2839 insertions, 2845 deletions
diff --git a/indra/llui/lltextbase.cpp b/indra/llui/lltextbase.cpp index 66c5af85c8..c72cdba263 100644 --- a/indra/llui/lltextbase.cpp +++ b/indra/llui/lltextbase.cpp @@ -1,2845 +1,2839 @@ -/** - * @file lltextbase.cpp - * @author Martin Reddy - * @brief The base class of text box/editor, providing Url handling support - * - * $LicenseInfo:firstyear=2009&license=viewergpl$ - * - * Copyright (c) 2009, Linden Research, Inc. - * - * Second Life Viewer Source Code - * The source code in this file ("Source Code") is provided by Linden Lab - * to you under the terms of the GNU General Public License, version 2.0 - * ("GPL"), unless you have obtained a separate licensing agreement - * ("Other License"), formally executed by you and Linden Lab. Terms of - * the GPL can be found in doc/GPL-license.txt in this distribution, or - * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 - * - * There are special exceptions to the terms and conditions of the GPL as - * it is applied to this Source Code. View the full text of the exception - * in the file doc/FLOSS-exception.txt in this software distribution, or - * online at - * http://secondlifegrid.net/programs/open_source/licensing/flossexception - * - * By copying, modifying or distributing this software, you acknowledge - * that you have read and understood your obligations described above, - * and agree to abide by those obligations. - * - * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO - * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, - * COMPLETENESS OR PERFORMANCE. - * $/LicenseInfo$ - */ - -#include "linden_common.h" - -#include "lltextbase.h" - -#include "lllocalcliprect.h" -#include "llmenugl.h" -#include "llscrollcontainer.h" -#include "llstl.h" -#include "lltextparser.h" -#include "lltooltip.h" -#include "lluictrl.h" -#include "llurlaction.h" -#include "llurlregistry.h" -#include "llview.h" -#include "llwindow.h" -#include <boost/bind.hpp> - -const F32 CURSOR_FLASH_DELAY = 1.0f; // in seconds -const S32 CURSOR_THICKNESS = 2; - -LLTextBase::line_info::line_info(S32 index_start, S32 index_end, LLRect rect, S32 line_num) -: mDocIndexStart(index_start), - mDocIndexEnd(index_end), - mRect(rect), - mLineNum(line_num) -{} - -bool LLTextBase::compare_segment_end::operator()(const LLTextSegmentPtr& a, const LLTextSegmentPtr& b) const -{ - // sort empty spans (e.g. 11-11) after previous non-empty spans (e.g. 5-11) - if (a->getEnd() == b->getEnd()) - { - return a->getStart() < b->getStart(); - } - return a->getEnd() < b->getEnd(); -} - - -// helper functors -struct LLTextBase::compare_bottom -{ - bool operator()(const S32& a, const LLTextBase::line_info& b) const - { - return a > b.mRect.mBottom; // bottom of a is higher than bottom of b - } - - bool operator()(const LLTextBase::line_info& a, const S32& b) const - { - return a.mRect.mBottom > b; // bottom of a is higher than bottom of b - } - - bool operator()(const LLTextBase::line_info& a, const LLTextBase::line_info& b) const - { - return a.mRect.mBottom > b.mRect.mBottom; // bottom of a is higher than bottom of b - } - -}; - -// helper functors -struct LLTextBase::compare_top -{ - bool operator()(const S32& a, const LLTextBase::line_info& b) const - { - return a > b.mRect.mTop; // top of a is higher than top of b - } - - bool operator()(const LLTextBase::line_info& a, const S32& b) const - { - return a.mRect.mTop > b; // top of a is higher than top of b - } - - bool operator()(const LLTextBase::line_info& a, const LLTextBase::line_info& b) const - { - return a.mRect.mTop > b.mRect.mTop; // top of a is higher than top of b - } -}; - -struct LLTextBase::line_end_compare -{ - bool operator()(const S32& pos, const LLTextBase::line_info& info) const - { - return (pos < info.mDocIndexEnd); - } - - bool operator()(const LLTextBase::line_info& info, const S32& pos) const - { - return (info.mDocIndexEnd < pos); - } - - bool operator()(const LLTextBase::line_info& a, const LLTextBase::line_info& b) const - { - return (a.mDocIndexEnd < b.mDocIndexEnd); - } - -}; - -////////////////////////////////////////////////////////////////////////// -// -// LLTextBase -// - -// register LLTextBase::Params under name "textbase" -static LLWidgetNameRegistry::StaticRegistrar sRegisterTextBaseParams(&typeid(LLTextBase::Params), "textbase"); - -LLTextBase::LineSpacingParams::LineSpacingParams() -: multiple("multiple", 1.f), - pixels("pixels", 0) -{ -} - - -LLTextBase::Params::Params() -: cursor_color("cursor_color"), - text_color("text_color"), - text_readonly_color("text_readonly_color"), - bg_visible("bg_visible", false), - border_visible("border_visible", false), - bg_readonly_color("bg_readonly_color"), - bg_writeable_color("bg_writeable_color"), - bg_focus_color("bg_focus_color"), - allow_scroll("allow_scroll", true), - plain_text("plain_text",false), - track_end("track_end", false), - read_only("read_only", false), - v_pad("v_pad", 0), - h_pad("h_pad", 0), - clip_partial("clip_partial", true), - line_spacing("line_spacing"), - max_text_length("max_length", 255), - font_shadow("font_shadow"), - wrap("wrap"), - use_ellipses("use_ellipses", false), - allow_html("allow_html", false), - parse_highlights("parse_highlights", false) -{ - addSynonym(track_end, "track_bottom"); - addSynonym(wrap, "word_wrap"); -} - - -LLTextBase::LLTextBase(const LLTextBase::Params &p) -: LLUICtrl(p, LLTextViewModelPtr(new LLTextViewModel)), - mURLClickSignal(), - mMaxTextByteLength( p.max_text_length ), - mDefaultFont(p.font), - mFontShadow(p.font_shadow), - mPopupMenu(NULL), - mReadOnly(p.read_only), - mCursorColor(p.cursor_color), - mFgColor(p.text_color), - mBorderVisible( p.border_visible ), - mReadOnlyFgColor(p.text_readonly_color), - mWriteableBgColor(p.bg_writeable_color), - mReadOnlyBgColor(p.bg_readonly_color), - mFocusBgColor(p.bg_focus_color), - mReflowIndex(S32_MAX), - mCursorPos( 0 ), - mScrollNeeded(FALSE), - mDesiredXPixel(-1), - mHPad(p.h_pad), - mVPad(p.v_pad), - mHAlign(p.font_halign), - mLineSpacingMult(p.line_spacing.multiple), - mLineSpacingPixels(p.line_spacing.pixels), - mClipPartial(p.clip_partial && !p.allow_scroll), - mTrackEnd( p.track_end ), - mScrollIndex(-1), - mSelectionStart( 0 ), - mSelectionEnd( 0 ), - mIsSelecting( FALSE ), - mPlainText ( p.plain_text ), - mWordWrap(p.wrap), - mUseEllipses( p.use_ellipses ), - mParseHTML(p.allow_html), - mParseHighlights(p.parse_highlights), - mBGVisible(p.bg_visible), - mScroller(NULL) -{ - if(p.allow_scroll) - { - LLScrollContainer::Params scroll_params; - scroll_params.name = "text scroller"; - scroll_params.rect = getLocalRect(); - scroll_params.follows.flags = FOLLOWS_ALL; - scroll_params.is_opaque = false; - scroll_params.mouse_opaque = false; - scroll_params.min_auto_scroll_rate = 200; - scroll_params.max_auto_scroll_rate = 800; - scroll_params.border_visible = p.border_visible; - mScroller = LLUICtrlFactory::create<LLScrollContainer>(scroll_params); - addChild(mScroller); - } - - LLView::Params view_params; - view_params.name = "text_contents"; - view_params.rect = LLRect(0, 500, 500, 0); - view_params.mouse_opaque = false; - - mDocumentView = LLUICtrlFactory::create<LLView>(view_params); - if (mScroller) - { - mScroller->addChild(mDocumentView); - } - else - { - addChild(mDocumentView); - } - - createDefaultSegment(); - - updateRects(); -} - -LLTextBase::~LLTextBase() -{ - // Menu, like any other LLUICtrl, is deleted by its parent - gMenuHolder - - mSegments.clear(); -} - -void LLTextBase::initFromParams(const LLTextBase::Params& p) -{ - LLUICtrl::initFromParams(p); - resetDirty(); // Update saved text state - updateSegments(); - - // HACK: work around enabled == readonly design bug -- RN - // setEnabled will modify our read only status, so do this after - // LLTextBase::initFromParams - if (p.read_only.isProvided()) - { - mReadOnly = p.read_only; - } - - // HACK: text editors always need to be enabled so that we can scroll - LLView::setEnabled(true); -} - -bool LLTextBase::truncate() -{ - BOOL did_truncate = FALSE; - - // First rough check - if we're less than 1/4th the size, we're OK - if (getLength() >= S32(mMaxTextByteLength / 4)) - { - // Have to check actual byte size - LLWString text(getWText()); - S32 utf8_byte_size = wstring_utf8_length(text); - if ( utf8_byte_size > mMaxTextByteLength ) - { - // Truncate safely in UTF-8 - std::string temp_utf8_text = wstring_to_utf8str(text); - temp_utf8_text = utf8str_truncate( temp_utf8_text, mMaxTextByteLength ); - LLWString text = utf8str_to_wstring( temp_utf8_text ); - // remove extra bit of current string, to preserve formatting, etc. - removeStringNoUndo(text.size(), getWText().size() - text.size()); - did_truncate = TRUE; - } - } - - return did_truncate; -} - -LLStyle::Params LLTextBase::getDefaultStyleParams() -{ - return LLStyle::Params() - .color(LLUIColor(&mFgColor)) - .readonly_color(LLUIColor(&mReadOnlyFgColor)) - .font(mDefaultFont) - .drop_shadow(mFontShadow); -} - -void LLTextBase::onValueChange(S32 start, S32 end) -{ -} - - -// Draws the black box behind the selected text -void LLTextBase::drawSelectionBackground() -{ - // Draw selection even if we don't have keyboard focus for search/replace - if( hasSelection() && !mLineInfoList.empty()) - { - std::vector<LLRect> selection_rects; - - S32 selection_left = llmin( mSelectionStart, mSelectionEnd ); - S32 selection_right = llmax( mSelectionStart, mSelectionEnd ); - LLRect selection_rect = mVisibleTextRect; - - // Skip through the lines we aren't drawing. - LLRect content_display_rect = getVisibleDocumentRect(); - - // binary search for line that starts before top of visible buffer - line_list_t::const_iterator line_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), content_display_rect.mTop, compare_bottom()); - line_list_t::const_iterator end_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), content_display_rect.mBottom, compare_top()); - - bool done = false; - - // Find the coordinates of the selected area - for (;line_iter != end_iter && !done; ++line_iter) - { - // is selection visible on this line? - if (line_iter->mDocIndexEnd > selection_left && line_iter->mDocIndexStart < selection_right) - { - segment_set_t::iterator segment_iter; - S32 segment_offset; - getSegmentAndOffset(line_iter->mDocIndexStart, &segment_iter, &segment_offset); - - LLRect selection_rect; - selection_rect.mLeft = line_iter->mRect.mLeft; - selection_rect.mRight = line_iter->mRect.mLeft; - selection_rect.mBottom = line_iter->mRect.mBottom; - selection_rect.mTop = line_iter->mRect.mTop; - - for(;segment_iter != mSegments.end(); ++segment_iter, segment_offset = 0) - { - LLTextSegmentPtr segmentp = *segment_iter; - - S32 segment_line_start = segmentp->getStart() + segment_offset; - S32 segment_line_end = llmin(segmentp->getEnd(), line_iter->mDocIndexEnd); - - if (segment_line_start > segment_line_end) break; - - S32 segment_width = 0; - S32 segment_height = 0; - - // if selection after beginning of segment - if(selection_left >= segment_line_start) - { - S32 num_chars = llmin(selection_left, segment_line_end) - segment_line_start; - segmentp->getDimensions(segment_offset, num_chars, segment_width, segment_height); - selection_rect.mLeft += segment_width; - } - - // if selection_right == segment_line_end then that means we are the first character of the next segment - // or first character of the next line, in either case we want to add the length of the current segment - // to the selection rectangle and continue. - // if selection right > segment_line_end then selection spans end of current segment... - if (selection_right >= segment_line_end) - { - // extend selection slightly beyond end of line - // to indicate selection of newline character (use "n" character to determine width) - S32 num_chars = segment_line_end - segment_line_start; - segmentp->getDimensions(segment_offset, num_chars, segment_width, segment_height); - selection_rect.mRight += segment_width; - } - // else if selection ends on current segment... - else - { - S32 num_chars = selection_right - segment_line_start; - segmentp->getDimensions(segment_offset, num_chars, segment_width, segment_height); - selection_rect.mRight += segment_width; - - break; - } - } - selection_rects.push_back(selection_rect); - } - } - - // Draw the selection box (we're using a box instead of reversing the colors on the selected text). - gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE); - const LLColor4& color = mReadOnly ? mReadOnlyFgColor.get() : mFgColor.get(); - F32 alpha = hasFocus() ? 0.7f : 0.3f; - alpha *= getDrawContext().mAlpha; - LLColor4 selection_color(color.mV[VRED], color.mV[VGREEN], color.mV[VBLUE], alpha); - - for (std::vector<LLRect>::iterator rect_it = selection_rects.begin(); - rect_it != selection_rects.end(); - ++rect_it) - { - LLRect selection_rect = *rect_it; - selection_rect.translate(mVisibleTextRect.mLeft - content_display_rect.mLeft, mVisibleTextRect.mBottom - content_display_rect.mBottom); - gl_rect_2d(selection_rect, selection_color); - } - } -} - -void LLTextBase::drawCursor() -{ - F32 alpha = getDrawContext().mAlpha; - - if( hasFocus() - && gFocusMgr.getAppHasFocus() - && !mReadOnly) - { - const LLWString &wtext = getWText(); - const llwchar* text = wtext.c_str(); - - LLRect cursor_rect = getLocalRectFromDocIndex(mCursorPos); - cursor_rect.translate(-1, 0); - segment_set_t::iterator seg_it = getSegIterContaining(mCursorPos); - - // take style from last segment - LLTextSegmentPtr segmentp; - - if (seg_it != mSegments.end()) - { - segmentp = *seg_it; - } - else - { - //segmentp = mSegments.back(); - return; - } - - // Draw the cursor - // (Flash the cursor every half second starting a fixed time after the last keystroke) - F32 elapsed = mCursorBlinkTimer.getElapsedTimeF32(); - if( (elapsed < CURSOR_FLASH_DELAY ) || (S32(elapsed * 2) & 1) ) - { - - if (LL_KIM_OVERWRITE == gKeyboard->getInsertMode() && !hasSelection()) - { - S32 segment_width = 0; - S32 segment_height = 0; - segmentp->getDimensions(mCursorPos - segmentp->getStart(), 1, segment_width, segment_height); - S32 width = llmax(CURSOR_THICKNESS, segment_width); - cursor_rect.mRight = cursor_rect.mLeft + width; - } - else - { - cursor_rect.mRight = cursor_rect.mLeft + CURSOR_THICKNESS; - } - - gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE); - - LLColor4 cursor_color = mCursorColor.get() % alpha; - gGL.color4fv( cursor_color.mV ); - - gl_rect_2d(cursor_rect); - - if (LL_KIM_OVERWRITE == gKeyboard->getInsertMode() && !hasSelection() && text[mCursorPos] != '\n') - { - LLColor4 text_color; - const LLFontGL* fontp; - if (segmentp) - { - text_color = segmentp->getColor(); - fontp = segmentp->getStyle()->getFont(); - } - else if (mReadOnly) - { - text_color = mReadOnlyFgColor.get(); - fontp = mDefaultFont; - } - else - { - text_color = mFgColor.get(); - fontp = mDefaultFont; - } - fontp->render(text, mCursorPos, cursor_rect.mLeft, cursor_rect.mTop, - LLColor4(1.f - text_color.mV[VRED], 1.f - text_color.mV[VGREEN], 1.f - text_color.mV[VBLUE], alpha), - LLFontGL::LEFT, LLFontGL::TOP, - LLFontGL::NORMAL, - LLFontGL::NO_SHADOW, - 1); - } - - // Make sure the IME is in the right place - LLRect screen_pos = calcScreenRect(); - LLCoordGL ime_pos( screen_pos.mLeft + llfloor(cursor_rect.mLeft), screen_pos.mBottom + llfloor(cursor_rect.mTop) ); - - ime_pos.mX = (S32) (ime_pos.mX * LLUI::sGLScaleFactor.mV[VX]); - ime_pos.mY = (S32) (ime_pos.mY * LLUI::sGLScaleFactor.mV[VY]); - getWindow()->setLanguageTextInput( ime_pos ); - } - } -} - -void LLTextBase::drawText() -{ - const S32 text_len = getLength(); - if( text_len <= 0 ) - { - return; - } - S32 selection_left = -1; - S32 selection_right = -1; - // Draw selection even if we don't have keyboard focus for search/replace - if( hasSelection()) - { - selection_left = llmin( mSelectionStart, mSelectionEnd ); - selection_right = llmax( mSelectionStart, mSelectionEnd ); - } - - LLRect scrolled_view_rect = getVisibleDocumentRect(); - std::pair<S32, S32> line_range = getVisibleLines(mClipPartial); - S32 first_line = line_range.first; - S32 last_line = line_range.second; - if (first_line >= last_line) - { - return; - } - - S32 line_start = getLineStart(first_line); - // find first text segment that spans top of visible portion of text buffer - segment_set_t::iterator seg_iter = getSegIterContaining(line_start); - if (seg_iter == mSegments.end()) - { - return; - } - - LLTextSegmentPtr cur_segment = *seg_iter; - - for (S32 cur_line = first_line; cur_line < last_line; cur_line++) - { - S32 next_line = cur_line + 1; - line_info& line = mLineInfoList[cur_line]; - - S32 next_start = -1; - S32 line_end = text_len; - - if (next_line < getLineCount()) - { - next_start = getLineStart(next_line); - line_end = next_start; - } - - LLRect text_rect(line.mRect.mLeft + mVisibleTextRect.mLeft - scrolled_view_rect.mLeft, - line.mRect.mTop - scrolled_view_rect.mBottom + mVisibleTextRect.mBottom, - llmin(mDocumentView->getRect().getWidth(), line.mRect.mRight) - scrolled_view_rect.mLeft, - line.mRect.mBottom - scrolled_view_rect.mBottom + mVisibleTextRect.mBottom); - - // draw a single line of text - S32 seg_start = line_start; - while( seg_start < line_end ) - { - while( cur_segment->getEnd() <= seg_start ) - { - seg_iter++; - if (seg_iter == mSegments.end()) - { - llwarns << "Ran off the segmentation end!" << llendl; - - return; - } - cur_segment = *seg_iter; - } - - S32 clipped_end = llmin( line_end, cur_segment->getEnd() ) - cur_segment->getStart(); - - if (mUseEllipses // using ellipses - && clipped_end == line_end // last segment on line - && next_line == last_line // this is the last visible line - && last_line < (S32)mLineInfoList.size()) // and there is more text to display - { - // more lines of text to go, but we can't fit them - // so shrink text rect to force ellipses - text_rect.mRight -= 2; - } - - text_rect.mLeft = (S32)(cur_segment->draw(seg_start - cur_segment->getStart(), clipped_end, selection_left, selection_right, text_rect)); - - seg_start = clipped_end + cur_segment->getStart(); - } - - line_start = next_start; - } -} - -/////////////////////////////////////////////////////////////////// -// Returns change in number of characters in mWText - -S32 LLTextBase::insertStringNoUndo(S32 pos, const LLWString &wstr, LLTextBase::segment_vec_t* segments ) -{ - LLWString text(getWText()); - S32 old_len = text.length(); // length() returns character length - S32 insert_len = wstr.length(); - - pos = getEditableIndex(pos, true); - - segment_set_t::iterator seg_iter = getSegIterContaining(pos); - - LLTextSegmentPtr default_segment; - - LLTextSegmentPtr segmentp; - if (seg_iter != mSegments.end()) - { - segmentp = *seg_iter; - } - else - { - //segmentp = mSegments.back(); - return pos; - } - - if (segmentp->canEdit()) - { - segmentp->setEnd(segmentp->getEnd() + insert_len); - if (seg_iter != mSegments.end()) - { - ++seg_iter; - } - } - else - { - // create default editable segment to hold new text - LLStyleConstSP sp(new LLStyle(getDefaultStyleParams())); - default_segment = new LLNormalTextSegment( sp, pos, pos + insert_len, *this); - } - - // shift remaining segments to right - for(;seg_iter != mSegments.end(); ++seg_iter) - { - LLTextSegmentPtr segmentp = *seg_iter; - segmentp->setStart(segmentp->getStart() + insert_len); - segmentp->setEnd(segmentp->getEnd() + insert_len); - } - - // insert new segments - if (segments) - { - if (default_segment.notNull()) - { - // potentially overwritten by segments passed in - insertSegment(default_segment); - } - for (segment_vec_t::iterator seg_iter = segments->begin(); - seg_iter != segments->end(); - ++seg_iter) - { - LLTextSegment* segmentp = *seg_iter; - insertSegment(segmentp); - } - } - - text.insert(pos, wstr); - getViewModel()->setDisplay(text); - - if ( truncate() ) - { - insert_len = getLength() - old_len; - } - - onValueChange(pos, pos + insert_len); - needsReflow(pos); - - return insert_len; -} - -S32 LLTextBase::removeStringNoUndo(S32 pos, S32 length) -{ - LLWString text(getWText()); - segment_set_t::iterator seg_iter = getSegIterContaining(pos); - while(seg_iter != mSegments.end()) - { - LLTextSegmentPtr segmentp = *seg_iter; - S32 end = pos + length; - if (segmentp->getStart() < pos) - { - // deleting from middle of segment - if (segmentp->getEnd() > end) - { - segmentp->setEnd(segmentp->getEnd() - length); - } - // truncating segment - else - { - segmentp->setEnd(pos); - } - } - else if (segmentp->getStart() < end) - { - // deleting entire segment - if (segmentp->getEnd() <= end) - { - // remove segment - segmentp->unlinkFromDocument(this); - segment_set_t::iterator seg_to_erase(seg_iter++); - mSegments.erase(seg_to_erase); - continue; - } - // deleting head of segment - else - { - segmentp->setStart(pos); - segmentp->setEnd(segmentp->getEnd() - length); - } - } - else - { - // shifting segments backward to fill deleted portion - segmentp->setStart(segmentp->getStart() - length); - segmentp->setEnd(segmentp->getEnd() - length); - } - ++seg_iter; - } - - text.erase(pos, length); - getViewModel()->setDisplay(text); - - // recreate default segment in case we erased everything - createDefaultSegment(); - - onValueChange(pos, pos); - needsReflow(pos); - - return -length; // This will be wrong if someone calls removeStringNoUndo with an excessive length -} - -S32 LLTextBase::overwriteCharNoUndo(S32 pos, llwchar wc) -{ - if (pos > (S32)getLength()) - { - return 0; - } - LLWString text(getWText()); - text[pos] = wc; - getViewModel()->setDisplay(text); - - onValueChange(pos, pos + 1); - needsReflow(pos); - - return 1; -} - - -void LLTextBase::createDefaultSegment() -{ - // ensures that there is always at least one segment - if (mSegments.empty()) - { - LLStyleConstSP sp(new LLStyle(getDefaultStyleParams())); - LLTextSegmentPtr default_segment = new LLNormalTextSegment( sp, 0, getLength() + 1, *this); - mSegments.insert(default_segment); - default_segment->linkToDocument(this); - } -} - -void LLTextBase::insertSegment(LLTextSegmentPtr segment_to_insert) -{ - if (segment_to_insert.isNull()) - { - return; - } - - segment_set_t::iterator cur_seg_iter = getSegIterContaining(segment_to_insert->getStart()); - S32 reflow_start_index = 0; - - if (cur_seg_iter == mSegments.end()) - { - mSegments.insert(segment_to_insert); - segment_to_insert->linkToDocument(this); - reflow_start_index = segment_to_insert->getStart(); - } - else - { - LLTextSegmentPtr cur_segmentp = *cur_seg_iter; - reflow_start_index = cur_segmentp->getStart(); - if (cur_segmentp->getStart() < segment_to_insert->getStart()) - { - S32 old_segment_end = cur_segmentp->getEnd(); - // split old at start point for new segment - cur_segmentp->setEnd(segment_to_insert->getStart()); - // advance to next segment - // insert remainder of old segment - LLStyleConstSP sp = cur_segmentp->getStyle(); - LLTextSegmentPtr remainder_segment = new LLNormalTextSegment( sp, segment_to_insert->getStart(), old_segment_end, *this); - mSegments.insert(cur_seg_iter, remainder_segment); - remainder_segment->linkToDocument(this); - // insert new segment before remainder of old segment - mSegments.insert(cur_seg_iter, segment_to_insert); - - segment_to_insert->linkToDocument(this); - // at this point, there will be two overlapping segments owning the text - // associated with the incoming segment - } - else - { - mSegments.insert(cur_seg_iter, segment_to_insert); - segment_to_insert->linkToDocument(this); - } - - // now delete/truncate remaining segments as necessary - // cur_seg_iter points to segment before incoming segment - while(cur_seg_iter != mSegments.end()) - { - cur_segmentp = *cur_seg_iter; - if (cur_segmentp == segment_to_insert) - { - ++cur_seg_iter; - continue; - } - - if (cur_segmentp->getStart() >= segment_to_insert->getStart()) - { - if(cur_segmentp->getEnd() <= segment_to_insert->getEnd()) - { - cur_segmentp->unlinkFromDocument(this); - // grab copy of iterator to erase, and bump it - segment_set_t::iterator seg_to_erase(cur_seg_iter++); - mSegments.erase(seg_to_erase); - continue; - } - else - { - // last overlapping segment, clip to end of incoming segment - // and stop traversal - cur_segmentp->setStart(segment_to_insert->getEnd()); - break; - } - } - ++cur_seg_iter; - } - } - - // layout potentially changed - needsReflow(reflow_start_index); -} - -BOOL LLTextBase::handleMouseDown(S32 x, S32 y, MASK mask) -{ - LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); - if (cur_segment && cur_segment->handleMouseDown(x, y, mask)) - { - return TRUE; - } - - return LLUICtrl::handleMouseDown(x, y, mask); -} - -BOOL LLTextBase::handleMouseUp(S32 x, S32 y, MASK mask) -{ - LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); - if (cur_segment && cur_segment->handleMouseUp(x, y, mask)) - { - // Did we just click on a link? - if (cur_segment->getStyle() - && cur_segment->getStyle()->isLink()) - { - // *TODO: send URL here? - mURLClickSignal(this, LLSD() ); - } - return TRUE; - } - - return LLUICtrl::handleMouseUp(x, y, mask); -} - -BOOL LLTextBase::handleMiddleMouseDown(S32 x, S32 y, MASK mask) -{ - LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); - if (cur_segment && cur_segment->handleMiddleMouseDown(x, y, mask)) - { - return TRUE; - } - - return LLUICtrl::handleMiddleMouseDown(x, y, mask); -} - -BOOL LLTextBase::handleMiddleMouseUp(S32 x, S32 y, MASK mask) -{ - LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); - if (cur_segment && cur_segment->handleMiddleMouseUp(x, y, mask)) - { - return TRUE; - } - - return LLUICtrl::handleMiddleMouseUp(x, y, mask); -} - -BOOL LLTextBase::handleRightMouseDown(S32 x, S32 y, MASK mask) -{ - LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); - if (cur_segment && cur_segment->handleRightMouseDown(x, y, mask)) - { - return TRUE; - } - - return LLUICtrl::handleRightMouseDown(x, y, mask); -} - -BOOL LLTextBase::handleRightMouseUp(S32 x, S32 y, MASK mask) -{ - LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); - if (cur_segment && cur_segment->handleRightMouseUp(x, y, mask)) - { - return TRUE; - } - - return LLUICtrl::handleRightMouseUp(x, y, mask); -} - -BOOL LLTextBase::handleDoubleClick(S32 x, S32 y, MASK mask) -{ - LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); - if (cur_segment && cur_segment->handleDoubleClick(x, y, mask)) - { - return TRUE; - } - - return LLUICtrl::handleDoubleClick(x, y, mask); -} - -BOOL LLTextBase::handleHover(S32 x, S32 y, MASK mask) -{ - LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); - if (cur_segment && cur_segment->handleHover(x, y, mask)) - { - return TRUE; - } - - return LLUICtrl::handleHover(x, y, mask); -} - -BOOL LLTextBase::handleScrollWheel(S32 x, S32 y, S32 clicks) -{ - LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); - if (cur_segment && cur_segment->handleScrollWheel(x, y, clicks)) - { - return TRUE; - } - - return LLUICtrl::handleScrollWheel(x, y, clicks); -} - -BOOL LLTextBase::handleToolTip(S32 x, S32 y, MASK mask) -{ - LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); - if (cur_segment && cur_segment->handleToolTip(x, y, mask)) - { - return TRUE; - } - - return LLUICtrl::handleToolTip(x, y, mask); -} - - -void LLTextBase::reshape(S32 width, S32 height, BOOL called_from_parent) -{ - if (width != getRect().getWidth() || height != getRect().getHeight()) - { - bool scrolled_to_bottom = mScroller ? mScroller->isAtBottom() : false; - - LLUICtrl::reshape( width, height, called_from_parent ); - - if (mScroller && scrolled_to_bottom && mTrackEnd) - { - // keep bottom of text buffer visible - // do this here as well as in reflow to handle case - // where shrinking from top, which causes buffer to temporarily - // not be scrolled to the bottom, since the scroll index - // specified the _top_ of the visible document region - mScroller->goToBottom(); - } - - // do this first after reshape, because other things depend on - // up-to-date mVisibleTextRect - updateRects(); - - needsReflow(); - } -} - -void LLTextBase::draw() -{ - // reflow if needed, on demand - reflow(); - - // then update scroll position, as cursor may have moved - if (!mReadOnly) - { - updateScrollFromCursor(); - } - - LLRect doc_rect; - if (mScroller) - { - mScroller->localRectToOtherView(mScroller->getContentWindowRect(), &doc_rect, this); - } - else - { - doc_rect = getLocalRect(); - } - - if (mBGVisible) - { - // clip background rect against extents, if we support scrolling - LLLocalClipRect clip(doc_rect, mScroller != NULL); - - LLColor4 bg_color = mReadOnly - ? mReadOnlyBgColor.get() - : hasFocus() - ? mFocusBgColor.get() - : mWriteableBgColor.get(); - gl_rect_2d(mVisibleTextRect, bg_color, TRUE); - } - - // draw document view - LLUICtrl::draw(); - - { - // only clip if we support scrolling (mScroller != NULL) - LLLocalClipRect clip(doc_rect, mScroller != NULL); - drawSelectionBackground(); - drawText(); - drawCursor(); - } -} - - -//virtual -void LLTextBase::setColor( const LLColor4& c ) -{ - mFgColor = c; -} - -//virtual -void LLTextBase::setReadOnlyColor(const LLColor4 &c) -{ - mReadOnlyFgColor = c; -} - -//virtual -void LLTextBase::handleVisibilityChange( BOOL new_visibility ) -{ - if(!new_visibility && mPopupMenu) - { - mPopupMenu->hide(); - } - LLUICtrl::handleVisibilityChange(new_visibility); -} - -//virtual -void LLTextBase::setValue(const LLSD& value ) -{ - setText(value.asString()); -} - -//virtual -BOOL LLTextBase::canDeselect() const -{ - return hasSelection(); -} - - -//virtual -void LLTextBase::deselect() -{ - mSelectionStart = 0; - mSelectionEnd = 0; - mIsSelecting = FALSE; -} - - -// Sets the scrollbar from the cursor position -void LLTextBase::updateScrollFromCursor() -{ - // Update scroll position even in read-only mode (when there's no cursor displayed) - // because startOfDoc()/endOfDoc() modify cursor position. See EXT-736. - - if (!mScrollNeeded || !mScroller) - { - return; - } - mScrollNeeded = FALSE; - - // scroll so that the cursor is at the top of the page - LLRect scroller_doc_window = getVisibleDocumentRect(); - LLRect cursor_rect_doc = getLocalRectFromDocIndex(mCursorPos); - cursor_rect_doc.translate(scroller_doc_window.mLeft, scroller_doc_window.mBottom); - mScroller->scrollToShowRect(cursor_rect_doc, LLRect(0, scroller_doc_window.getHeight() - 5, scroller_doc_window.getWidth(), 5)); -} - -S32 LLTextBase::getLeftOffset(S32 width) -{ - switch (mHAlign) - { - case LLFontGL::LEFT: - return mHPad; - case LLFontGL::HCENTER: - return mHPad + llmax(0, (mVisibleTextRect.getWidth() - width - mHPad) / 2); - case LLFontGL::RIGHT: - return mVisibleTextRect.getWidth() - width; - default: - return mHPad; - } -} - - -static LLFastTimer::DeclareTimer FTM_TEXT_REFLOW ("Text Reflow"); -void LLTextBase::reflow() -{ - LLFastTimer ft(FTM_TEXT_REFLOW); - - updateSegments(); - - if (mReflowIndex == S32_MAX) - { - return; - } - - bool scrolled_to_bottom = mScroller ? mScroller->isAtBottom() : false; - - LLRect cursor_rect = getLocalRectFromDocIndex(mCursorPos); - bool follow_selection = getLocalRect().overlaps(cursor_rect); // cursor is (potentially) visible - - // store in top-left relative coordinates to avoid issues with horizontal scrollbar appearing and disappearing - cursor_rect.mTop = mVisibleTextRect.mTop - cursor_rect.mTop; - cursor_rect.mBottom = mVisibleTextRect.mTop - cursor_rect.mBottom; - - S32 first_line = getFirstVisibleLine(); - - // if scroll anchor not on first line, update it to first character of first line - if (!mLineInfoList.empty() - && (mScrollIndex < mLineInfoList[first_line].mDocIndexStart - || mScrollIndex >= mLineInfoList[first_line].mDocIndexEnd)) - { - mScrollIndex = mLineInfoList[first_line].mDocIndexStart; - } - LLRect first_char_rect = getLocalRectFromDocIndex(mScrollIndex); - // store in top-left relative coordinates to avoid issues with horizontal scrollbar appearing and disappearing - first_char_rect.mTop = mVisibleTextRect.mTop - first_char_rect.mTop; - first_char_rect.mBottom = mVisibleTextRect.mTop - first_char_rect.mBottom; - - S32 reflow_count = 0; - while(mReflowIndex < S32_MAX) - { - // we can get into an infinite loop if the document height does not monotonically increase - // with decreasing width (embedded ui elements with alternate layouts). In that case, - // we want to stop reflowing after 2 iterations. We use 2, since we need to handle the case - // of introducing a vertical scrollbar causing a reflow with less width. We should also always - // use an even number of iterations to avoid user visible oscillation of the layout - if(++reflow_count > 2) - { - lldebugs << "Breaking out of reflow due to possible infinite loop in " << getName() << llendl; - break; - } - - S32 start_index = mReflowIndex; - mReflowIndex = S32_MAX; - - // shrink document to minimum size (visible portion of text widget) - // to force inlined widgets with follows set to shrink - mDocumentView->reshape(mVisibleTextRect.getWidth(), mDocumentView->getRect().getHeight()); - - S32 cur_top = 0; - - segment_set_t::iterator seg_iter = mSegments.begin(); - S32 seg_offset = 0; - S32 line_start_index = 0; - const S32 text_available_width = mVisibleTextRect.getWidth() - mHPad; // reserve room for margin - S32 remaining_pixels = text_available_width; - S32 line_count = 0; - - // find and erase line info structs starting at start_index and going to end of document - if (!mLineInfoList.empty()) - { - // find first element whose end comes after start_index - line_list_t::iterator iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), start_index, line_end_compare()); - line_start_index = iter->mDocIndexStart; - line_count = iter->mLineNum; - cur_top = iter->mRect.mTop; - getSegmentAndOffset(iter->mDocIndexStart, &seg_iter, &seg_offset); - mLineInfoList.erase(iter, mLineInfoList.end()); - } - - S32 line_height = 0; - - while(seg_iter != mSegments.end()) - { - LLTextSegmentPtr segment = *seg_iter; - - // track maximum height of any segment on this line - S32 cur_index = segment->getStart() + seg_offset; - - // ask segment how many character fit in remaining space - S32 character_count = segment->getNumChars(getWordWrap() ? llmax(0, remaining_pixels) : S32_MAX, - seg_offset, - cur_index - line_start_index, - S32_MAX); - - S32 segment_width, segment_height; - bool force_newline = segment->getDimensions(seg_offset, character_count, segment_width, segment_height); - // grow line height as necessary based on reported height of this segment - line_height = llmax(line_height, segment_height); - remaining_pixels -= segment_width; - - seg_offset += character_count; - - S32 last_segment_char_on_line = segment->getStart() + seg_offset; - - S32 text_actual_width = text_available_width - remaining_pixels; - S32 text_left = getLeftOffset(text_actual_width); - LLRect line_rect(text_left, - cur_top, - text_left + text_actual_width, - cur_top - line_height); - - // if we didn't finish the current segment... - if (last_segment_char_on_line < segment->getEnd()) - { - // add line info and keep going - mLineInfoList.push_back(line_info( - line_start_index, - last_segment_char_on_line, - line_rect, - line_count)); - - line_start_index = segment->getStart() + seg_offset; - cur_top -= llround((F32)line_height * mLineSpacingMult) + mLineSpacingPixels; - remaining_pixels = text_available_width; - line_height = 0; - } - // ...just consumed last segment.. - else if (++segment_set_t::iterator(seg_iter) == mSegments.end()) - { - mLineInfoList.push_back(line_info( - line_start_index, - last_segment_char_on_line, - line_rect, - line_count)); - cur_top -= llround((F32)line_height * mLineSpacingMult) + mLineSpacingPixels; - break; - } - // ...or finished a segment and there are segments remaining on this line - else - { - // subtract pixels used and increment segment - if (force_newline) - { - mLineInfoList.push_back(line_info( - line_start_index, - last_segment_char_on_line, - line_rect, - line_count)); - line_start_index = segment->getStart() + seg_offset; - cur_top -= llround((F32)line_height * mLineSpacingMult) + mLineSpacingPixels; - line_height = 0; - remaining_pixels = text_available_width; - } - ++seg_iter; - seg_offset = 0; - } - if (force_newline) - { - line_count++; - } - } - - // calculate visible region for diplaying text - updateRects(); - - for (segment_set_t::iterator segment_it = mSegments.begin(); - segment_it != mSegments.end(); - ++segment_it) - { - LLTextSegmentPtr segmentp = *segment_it; - segmentp->updateLayout(*this); - - } - } - - // apply scroll constraints after reflowing text - if (!hasMouseCapture() && mScroller) - { - if (scrolled_to_bottom && mTrackEnd) - { - // keep bottom of text buffer visible - endOfDoc(); - } - else if (hasSelection() && follow_selection) - { - // keep cursor in same vertical position on screen when selecting text - LLRect new_cursor_rect_doc = getDocRectFromDocIndex(mCursorPos); - LLRect old_cursor_rect = cursor_rect; - old_cursor_rect.mTop = mVisibleTextRect.mTop - cursor_rect.mTop; - old_cursor_rect.mBottom = mVisibleTextRect.mTop - cursor_rect.mBottom; - - mScroller->scrollToShowRect(new_cursor_rect_doc, old_cursor_rect); - } - else - { - // keep first line of text visible - LLRect new_first_char_rect = getDocRectFromDocIndex(mScrollIndex); - - // pass in desired rect in the coordinate frame of the document viewport - LLRect old_first_char_rect = first_char_rect; - old_first_char_rect.mTop = mVisibleTextRect.mTop - first_char_rect.mTop; - old_first_char_rect.mBottom = mVisibleTextRect.mTop - first_char_rect.mBottom; - - mScroller->scrollToShowRect(new_first_char_rect, old_first_char_rect); - } - } - - // reset desired x cursor position - updateCursorXPos(); - } - -LLRect LLTextBase::getTextBoundingRect() -{ - reflow(); - return mTextBoundingRect; -} - - -void LLTextBase::clearSegments() -{ - mSegments.clear(); - createDefaultSegment(); -} - -S32 LLTextBase::getLineStart( S32 line ) const -{ - S32 num_lines = getLineCount(); - if (num_lines == 0) - { - return 0; - } - - line = llclamp(line, 0, num_lines-1); - return mLineInfoList[line].mDocIndexStart; -} - -S32 LLTextBase::getLineEnd( S32 line ) const -{ - S32 num_lines = getLineCount(); - if (num_lines == 0) - { - return 0; - } - - line = llclamp(line, 0, num_lines-1); - return mLineInfoList[line].mDocIndexEnd; -} - - - -S32 LLTextBase::getLineNumFromDocIndex( S32 doc_index, bool include_wordwrap) const -{ - if (mLineInfoList.empty()) - { - return 0; - } - else - { - line_list_t::const_iterator iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), doc_index, line_end_compare()); - if (include_wordwrap) - { - return iter - mLineInfoList.begin(); - } - else - { - if (iter == mLineInfoList.end()) - { - return mLineInfoList.back().mLineNum; - } - else - { - return iter->mLineNum; - } - } - } -} - -// Given an offset into text (pos), find the corresponding line (from the start of the doc) and an offset into the line. -S32 LLTextBase::getLineOffsetFromDocIndex( S32 startpos, bool include_wordwrap) const -{ - if (mLineInfoList.empty()) - { - return startpos; - } - else - { - line_list_t::const_iterator iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), startpos, line_end_compare()); - return startpos - iter->mDocIndexStart; - } -} - -S32 LLTextBase::getFirstVisibleLine() const -{ - LLRect visible_region = getVisibleDocumentRect(); - - // binary search for line that starts before top of visible buffer - line_list_t::const_iterator iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mTop, compare_bottom()); - - return iter - mLineInfoList.begin(); -} - -std::pair<S32, S32> LLTextBase::getVisibleLines(bool fully_visible) -{ - LLRect visible_region = getVisibleDocumentRect(); - line_list_t::const_iterator first_iter; - line_list_t::const_iterator last_iter; - - // make sure we have an up-to-date mLineInfoList - reflow(); - - if (fully_visible) - { - first_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mTop, compare_top()); - last_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mBottom, compare_bottom()); - } - else - { - first_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mTop, compare_bottom()); - last_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mBottom, compare_top()); - } - return std::pair<S32, S32>(first_iter - mLineInfoList.begin(), last_iter - mLineInfoList.begin()); -} - - - -LLTextViewModel* LLTextBase::getViewModel() const -{ - return (LLTextViewModel*)mViewModel.get(); -} - -void LLTextBase::addDocumentChild(LLView* view) -{ - mDocumentView->addChild(view); -} - -void LLTextBase::removeDocumentChild(LLView* view) -{ - mDocumentView->removeChild(view); -} - - -static LLFastTimer::DeclareTimer FTM_UPDATE_TEXT_SEGMENTS("Update Text Segments"); -void LLTextBase::updateSegments() -{ - LLFastTimer ft(FTM_UPDATE_TEXT_SEGMENTS); - createDefaultSegment(); -} - -void LLTextBase::getSegmentAndOffset( S32 startpos, segment_set_t::const_iterator* seg_iter, S32* offsetp ) const -{ - *seg_iter = getSegIterContaining(startpos); - if (*seg_iter == mSegments.end()) - { - *offsetp = 0; - } - else - { - *offsetp = startpos - (**seg_iter)->getStart(); - } -} - -void LLTextBase::getSegmentAndOffset( S32 startpos, segment_set_t::iterator* seg_iter, S32* offsetp ) -{ - *seg_iter = getSegIterContaining(startpos); - if (*seg_iter == mSegments.end()) - { - *offsetp = 0; - } - else - { - *offsetp = startpos - (**seg_iter)->getStart(); - } -} - -LLTextBase::segment_set_t::iterator LLTextBase::getSegIterContaining(S32 index) -{ - segment_set_t::iterator it = mSegments.upper_bound(new LLIndexSegment(index)); - return it; -} - -LLTextBase::segment_set_t::const_iterator LLTextBase::getSegIterContaining(S32 index) const -{ - LLTextBase::segment_set_t::const_iterator it = mSegments.upper_bound(new LLIndexSegment(index)); - return it; -} - -// Finds the text segment (if any) at the give local screen position -LLTextSegmentPtr LLTextBase::getSegmentAtLocalPos( S32 x, S32 y, bool hit_past_end_of_line) -{ - // Find the cursor position at the requested local screen position - S32 offset = getDocIndexFromLocalCoord( x, y, FALSE, hit_past_end_of_line); - segment_set_t::iterator seg_iter = getSegIterContaining(offset); - if (seg_iter != mSegments.end()) - { - return *seg_iter; - } - else - { - return LLTextSegmentPtr(); - } -} - -void LLTextBase::createUrlContextMenu(S32 x, S32 y, const std::string &in_url) -{ - // work out the XUI menu file to use for this url - LLUrlMatch match; - std::string url = in_url; - if (! LLUrlRegistry::instance().findUrl(url, match)) - { - return; - } - - std::string xui_file = match.getMenuName(); - if (xui_file.empty()) - { - return; - } - - // set up the callbacks for all of the potential menu items, N.B. we - // don't use const ref strings in callbacks in case url goes out of scope - LLUICtrl::CommitCallbackRegistry::ScopedRegistrar registrar; - registrar.add("Url.Open", boost::bind(&LLUrlAction::openURL, url)); - registrar.add("Url.OpenInternal", boost::bind(&LLUrlAction::openURLInternal, url)); - registrar.add("Url.OpenExternal", boost::bind(&LLUrlAction::openURLExternal, url)); - registrar.add("Url.Execute", boost::bind(&LLUrlAction::executeSLURL, url)); - registrar.add("Url.Teleport", boost::bind(&LLUrlAction::teleportToLocation, url)); - registrar.add("Url.ShowProfile", boost::bind(&LLUrlAction::showProfile, url)); - registrar.add("Url.ShowOnMap", boost::bind(&LLUrlAction::showLocationOnMap, url)); - registrar.add("Url.CopyLabel", boost::bind(&LLUrlAction::copyLabelToClipboard, url)); - registrar.add("Url.CopyUrl", boost::bind(&LLUrlAction::copyURLToClipboard, url)); - - // create and return the context menu from the XUI file - delete mPopupMenu; - mPopupMenu = LLUICtrlFactory::getInstance()->createFromFile<LLContextMenu>(xui_file, LLMenuGL::sMenuContainer, - LLMenuHolderGL::child_registry_t::instance()); - if (mPopupMenu) - { - mPopupMenu->show(x, y); - LLMenuGL::showPopup(this, mPopupMenu, x, y); - } -} - -void LLTextBase::setText(const LLStringExplicit &utf8str, const LLStyle::Params& input_params) -{ - // clear out the existing text and segments - getViewModel()->setDisplay(LLWStringUtil::null); - - clearSegments(); -// createDefaultSegment(); - - deselect(); - - // append the new text (supports Url linking) - std::string text(utf8str); - LLStringUtil::removeCRLF(text); - - // appendText modifies mCursorPos... - appendText(text, false, input_params); - // ...so move cursor to top after appending text - startOfDoc(); - - onValueChange(0, getLength()); -} - -//virtual -std::string LLTextBase::getText() const -{ - return getViewModel()->getValue().asString(); -} - -// IDEVO - icons can be UI image names or UUID sent from -// server with avatar display name -static LLUIImagePtr image_from_icon_name(const std::string& icon_name) -{ - if (LLUUID::validate(icon_name)) - { - return LLUI::getUIImageByID( LLUUID(icon_name) ); - } - else - { - return LLUI::getUIImage(icon_name); - } -} - -void LLTextBase::appendTextImpl(const std::string &new_text, const LLStyle::Params& input_params) -{ - LLStyle::Params style_params(input_params); - style_params.fillFrom(getDefaultStyleParams()); - - S32 part = (S32)LLTextParser::WHOLE; - if(mParseHTML) - { - S32 start=0,end=0; - LLUrlMatch match; - std::string text = new_text; - while ( LLUrlRegistry::instance().findUrl(text, match, - boost::bind(&LLTextBase::replaceUrl, this, _1, _2, _3)) ) - { - start = match.getStart(); - end = match.getEnd()+1; - - LLStyle::Params link_params(style_params); - link_params.overwriteFrom(match.getStyle()); - - // output the text before the Url - if (start > 0) - { - if (part == (S32)LLTextParser::WHOLE || - part == (S32)LLTextParser::START) - { - part = (S32)LLTextParser::START; - } - else - { - part = (S32)LLTextParser::MIDDLE; - } - std::string subtext=text.substr(0,start); - appendAndHighlightText(subtext, part, style_params); - } - - // output an optional icon before the Url - if (! match.getIcon().empty()) - { - LLUIImagePtr image = image_from_icon_name( match.getIcon() ); - if (image) - { - LLStyle::Params icon_params; - icon_params.image = image; - // must refer to our link so we can update the icon later - // after name/group data is looked up - icon_params.link_href = match.getUrl(); - // Text will be replaced during rendering with the icon, - // but string cannot be empty or the segment won't be - // added (or drawn). - appendImageSegment(part, icon_params); - } - } - - // output the styled Url - appendAndHighlightTextImpl(match.getLabel(), part, link_params); - - // set the tooltip for the Url label - if (! match.getTooltip().empty()) - { - segment_set_t::iterator it = getSegIterContaining(getLength()-1); - if (it != mSegments.end()) - { - LLTextSegmentPtr segment = *it; - segment->setToolTip(match.getTooltip()); - } - } - - // move on to the rest of the text after the Url - if (end < (S32)text.length()) - { - text = text.substr(end,text.length() - end); - end=0; - part=(S32)LLTextParser::END; - } - else - { - break; - } - } - if (part != (S32)LLTextParser::WHOLE) - part=(S32)LLTextParser::END; - if (end < (S32)text.length()) - appendAndHighlightText(text, part, style_params); - } - else - { - appendAndHighlightText(new_text, part, style_params); - } -} - -void LLTextBase::appendText(const std::string &new_text, bool prepend_newline, const LLStyle::Params& input_params) -{ - if (new_text.empty()) - return; - - if(prepend_newline) - appendLineBreakSegment(input_params); - appendTextImpl(new_text,input_params); -} - -void LLTextBase::needsReflow(S32 index) -{ - lldebugs << "reflow on object " << (void*)this << " index = " << mReflowIndex << ", new index = " << index << llendl; - mReflowIndex = llmin(mReflowIndex, index); -} - -void LLTextBase::appendLineBreakSegment(const LLStyle::Params& style_params) -{ - segment_vec_t segments; - LLStyleConstSP sp(new LLStyle(style_params)); - segments.push_back(new LLLineBreakTextSegment(sp, getLength())); - - insertStringNoUndo(getLength(), utf8str_to_wstring("\n"), &segments); -} - -void LLTextBase::appendImageSegment(S32 highlight_part, const LLStyle::Params& style_params) -{ - if(getPlainText()) - { - return; - } - segment_vec_t segments; - LLStyleConstSP sp(new LLStyle(style_params)); - segments.push_back(new LLImageTextSegment(sp, getLength(),*this)); - - insertStringNoUndo(getLength(), utf8str_to_wstring(" "), &segments); -} - - - -void LLTextBase::appendAndHighlightTextImpl(const std::string &new_text, S32 highlight_part, const LLStyle::Params& style_params) -{ - // Save old state - S32 selection_start = mSelectionStart; - S32 selection_end = mSelectionEnd; - BOOL was_selecting = mIsSelecting; - S32 cursor_pos = mCursorPos; - S32 old_length = getLength(); - BOOL cursor_was_at_end = (mCursorPos == old_length); - - deselect(); - - setCursorPos(old_length); - - if (mParseHighlights) - { - LLStyle::Params highlight_params(style_params); - - LLSD pieces = LLTextParser::instance().parsePartialLineHighlights(new_text, highlight_params.color(), (LLTextParser::EHighlightPosition)highlight_part); - for (S32 i = 0; i < pieces.size(); i++) - { - LLSD color_llsd = pieces[i]["color"]; - LLColor4 lcolor; - lcolor.setValue(color_llsd); - highlight_params.color = lcolor; - - LLWString wide_text; - wide_text = utf8str_to_wstring(pieces[i]["text"].asString()); - - S32 cur_length = getLength(); - LLStyleConstSP sp(new LLStyle(highlight_params)); - LLTextSegmentPtr segmentp = new LLNormalTextSegment(sp, cur_length, cur_length + wide_text.size(), *this); - segment_vec_t segments; - segments.push_back(segmentp); - insertStringNoUndo(cur_length, wide_text, &segments); - } - } - else - { - LLWString wide_text; - wide_text = utf8str_to_wstring(new_text); - - segment_vec_t segments; - S32 segment_start = old_length; - S32 segment_end = old_length + wide_text.size(); - LLStyleConstSP sp(new LLStyle(style_params)); - segments.push_back(new LLNormalTextSegment(sp, segment_start, segment_end, *this )); - - insertStringNoUndo(getLength(), wide_text, &segments); - } - - // Set the cursor and scroll position - if( selection_start != selection_end ) - { - mSelectionStart = selection_start; - mSelectionEnd = selection_end; - - mIsSelecting = was_selecting; - setCursorPos(cursor_pos); - } - else if( cursor_was_at_end ) - { - setCursorPos(getLength()); - } - else - { - setCursorPos(cursor_pos); - } -} - -void LLTextBase::appendAndHighlightText(const std::string &new_text, S32 highlight_part, const LLStyle::Params& style_params) -{ - if (new_text.empty()) return; - - std::string::size_type start = 0; - std::string::size_type pos = new_text.find("\n",start); - - while(pos!=-1) - { - if(pos!=start) - { - std::string str = std::string(new_text,start,pos-start); - appendAndHighlightTextImpl(str,highlight_part, style_params); - } - appendLineBreakSegment(style_params); - start = pos+1; - pos = new_text.find("\n",start); - } - - std::string str = std::string(new_text,start,new_text.length()-start); - appendAndHighlightTextImpl(str,highlight_part, style_params); -} - - -void LLTextBase::replaceUrl(const std::string &url, - const std::string &label, - const std::string &icon) -{ - // get the full (wide) text for the editor so we can change it - LLWString text = getWText(); - LLWString wlabel = utf8str_to_wstring(label); - bool modified = false; - S32 seg_start = 0; - - // iterate through each segment looking for ones styled as links - segment_set_t::iterator it; - for (it = mSegments.begin(); it != mSegments.end(); ++it) - { - LLTextSegment *seg = *it; - LLStyleConstSP style = seg->getStyle(); - - // update segment start/end length in case we replaced text earlier - S32 seg_length = seg->getEnd() - seg->getStart(); - seg->setStart(seg_start); - seg->setEnd(seg_start + seg_length); - - // if we find a link with our Url, then replace the label - if (style->getLinkHREF() == url) - { - S32 start = seg->getStart(); - S32 end = seg->getEnd(); - text = text.substr(0, start) + wlabel + text.substr(end, text.size() - end + 1); - seg->setEnd(start + wlabel.size()); - modified = true; - } - - // Icon might be updated when more avatar or group info - // becomes available - if (style->isImage() && style->getLinkHREF() == url) - { - LLUIImagePtr image = image_from_icon_name( icon ); - if (image) - { - LLStyle::Params icon_params; - icon_params.image = image; - LLStyleConstSP new_style(new LLStyle(icon_params)); - seg->setStyle(new_style); - modified = true; - } - } - - // work out the character offset for the next segment - seg_start = seg->getEnd(); - } - - // update the editor with the new (wide) text string - if (modified) - { - getViewModel()->setDisplay(text); - deselect(); - setCursorPos(mCursorPos); - needsReflow(); - } -} - - -void LLTextBase::setWText(const LLWString& text) -{ - setText(wstring_to_utf8str(text)); -} - -const LLWString& LLTextBase::getWText() const -{ - return getViewModel()->getDisplay(); -} - -// If round is true, if the position is on the right half of a character, the cursor -// will be put to its right. If round is false, the cursor will always be put to the -// character's left. - -S32 LLTextBase::getDocIndexFromLocalCoord( S32 local_x, S32 local_y, BOOL round, bool hit_past_end_of_line) const -{ - // Figure out which line we're nearest to. - LLRect visible_region = getVisibleDocumentRect(); - - // binary search for line that starts before local_y - line_list_t::const_iterator line_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), local_y - mVisibleTextRect.mBottom + visible_region.mBottom, compare_bottom()); - - if (line_iter == mLineInfoList.end()) - { - return getLength(); // past the end - } - - S32 pos = getLength(); - S32 start_x = mVisibleTextRect.mLeft + line_iter->mRect.mLeft - visible_region.mLeft; - - segment_set_t::iterator line_seg_iter; - S32 line_seg_offset; - for(getSegmentAndOffset(line_iter->mDocIndexStart, &line_seg_iter, &line_seg_offset); - line_seg_iter != mSegments.end(); - ++line_seg_iter, line_seg_offset = 0) - { - const LLTextSegmentPtr segmentp = *line_seg_iter; - - S32 segment_line_start = segmentp->getStart() + line_seg_offset; - S32 segment_line_length = llmin(segmentp->getEnd(), line_iter->mDocIndexEnd) - segment_line_start; - S32 text_width, text_height; - bool newline = segmentp->getDimensions(line_seg_offset, segment_line_length, text_width, text_height); - - if(newline) - { - pos = segment_line_start + segmentp->getOffset(local_x - start_x, line_seg_offset, segment_line_length, round); - break; - } - - // if we've reached a line of text *below* the mouse cursor, doc index is first character on that line - if (hit_past_end_of_line && local_y - mVisibleTextRect.mBottom + visible_region.mBottom > line_iter->mRect.mTop) - { - pos = segment_line_start; - break; - } - if (local_x < start_x + text_width) // cursor to left of right edge of text - { - // Figure out which character we're nearest to. - S32 offset; - if (!segmentp->canEdit()) - { - S32 segment_width, segment_height; - segmentp->getDimensions(0, segmentp->getEnd() - segmentp->getStart(), segment_width, segment_height); - if (round && local_x - start_x > segment_width / 2) - { - offset = segment_line_length; - } - else - { - offset = 0; - } - } - else - { - offset = segmentp->getOffset(local_x - start_x, line_seg_offset, segment_line_length, round); - } - pos = segment_line_start + offset; - break; - } - else if (hit_past_end_of_line && segmentp->getEnd() > line_iter->mDocIndexEnd - 1) - { - // segment wraps to next line, so just set doc pos to the end of the line - // segment wraps to next line, so just set doc pos to start of next line (represented by mDocIndexEnd) - pos = llmin(getLength(), line_iter->mDocIndexEnd); - break; - } - start_x += text_width; - } - - return pos; -} - -// returns rectangle of insertion caret -// in document coordinate frame from given index into text -LLRect LLTextBase::getDocRectFromDocIndex(S32 pos) const -{ - if (mLineInfoList.empty()) - { - return LLRect(); - } - - LLRect doc_rect; - - // clamp pos to valid values - pos = llclamp(pos, 0, mLineInfoList.back().mDocIndexEnd - 1); - - // find line that contains cursor - line_list_t::const_iterator line_iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), pos, line_end_compare()); - - doc_rect.mLeft = line_iter->mRect.mLeft; - doc_rect.mBottom = line_iter->mRect.mBottom; - doc_rect.mTop = line_iter->mRect.mTop; - - segment_set_t::iterator line_seg_iter; - S32 line_seg_offset; - segment_set_t::iterator cursor_seg_iter; - S32 cursor_seg_offset; - getSegmentAndOffset(line_iter->mDocIndexStart, &line_seg_iter, &line_seg_offset); - getSegmentAndOffset(pos, &cursor_seg_iter, &cursor_seg_offset); - - while(line_seg_iter != mSegments.end()) - { - const LLTextSegmentPtr segmentp = *line_seg_iter; - - if (line_seg_iter == cursor_seg_iter) - { - // cursor advanced to right based on difference in offset of cursor to start of line - S32 segment_width, segment_height; - segmentp->getDimensions(line_seg_offset, cursor_seg_offset - line_seg_offset, segment_width, segment_height); - doc_rect.mLeft += segment_width; - - break; - } - else - { - // add remainder of current text segment to cursor position - S32 segment_width, segment_height; - segmentp->getDimensions(line_seg_offset, (segmentp->getEnd() - segmentp->getStart()) - line_seg_offset, segment_width, segment_height); - doc_rect.mLeft += segment_width; - // offset will be 0 for all segments after the first - line_seg_offset = 0; - // go to next text segment on this line - ++line_seg_iter; - } - } - - // set rect to 0 width - doc_rect.mRight = doc_rect.mLeft; - - return doc_rect; -} - -LLRect LLTextBase::getLocalRectFromDocIndex(S32 pos) const -{ - LLRect content_window_rect = mScroller ? mScroller->getContentWindowRect() : getLocalRect(); - if (mBorderVisible) - { - content_window_rect.stretch(-1); - } - - LLRect local_rect; - - if (mLineInfoList.empty()) - { - // return default height rect in upper left - local_rect = content_window_rect; - local_rect.mBottom = local_rect.mTop - (S32)(mDefaultFont->getLineHeight()); - return local_rect; - } - - // get the rect in document coordinates - LLRect doc_rect = getDocRectFromDocIndex(pos); - - // compensate for scrolled, inset view of doc - LLRect scrolled_view_rect = getVisibleDocumentRect(); - local_rect = doc_rect; - local_rect.translate(content_window_rect.mLeft - scrolled_view_rect.mLeft, - content_window_rect.mBottom - scrolled_view_rect.mBottom); - - return local_rect; -} - -void LLTextBase::updateCursorXPos() -{ - // reset desired x cursor position - mDesiredXPixel = getLocalRectFromDocIndex(mCursorPos).mLeft; -} - - -void LLTextBase::startOfLine() -{ - S32 offset = getLineOffsetFromDocIndex(mCursorPos); - setCursorPos(mCursorPos - offset); -} - -void LLTextBase::endOfLine() -{ - S32 line = getLineNumFromDocIndex(mCursorPos); - S32 num_lines = getLineCount(); - if (line + 1 >= num_lines) - { - setCursorPos(getLength()); - } - else - { - setCursorPos( getLineStart(line + 1) - 1 ); - } -} - -void LLTextBase::startOfDoc() -{ - setCursorPos(0); - if (mScroller) - { - mScroller->goToTop(); - } -} - -void LLTextBase::endOfDoc() -{ - setCursorPos(getLength()); - if (mScroller) - { - mScroller->goToBottom(); - } -} - -void LLTextBase::changePage( S32 delta ) -{ - const S32 PIXEL_OVERLAP_ON_PAGE_CHANGE = 10; - if (delta == 0 || !mScroller) return; - - LLRect cursor_rect = getLocalRectFromDocIndex(mCursorPos); - - if( delta == -1 ) - { - mScroller->pageUp(PIXEL_OVERLAP_ON_PAGE_CHANGE); - } - else - if( delta == 1 ) - { - mScroller->pageDown(PIXEL_OVERLAP_ON_PAGE_CHANGE); - } - - if (getLocalRectFromDocIndex(mCursorPos) == cursor_rect) - { - // cursor didn't change apparent position, so move to top or bottom of document, respectively - if (delta < 0) - { - startOfDoc(); - } - else - { - endOfDoc(); - } - } - else - { - setCursorAtLocalPos(cursor_rect.getCenterX(), cursor_rect.getCenterY(), true, false); - } -} - -// Picks a new cursor position based on the screen size of text being drawn. -void LLTextBase::setCursorAtLocalPos( S32 local_x, S32 local_y, bool round, bool keep_cursor_offset ) -{ - setCursorPos(getDocIndexFromLocalCoord(local_x, local_y, round), keep_cursor_offset); -} - - -void LLTextBase::changeLine( S32 delta ) -{ - S32 line = getLineNumFromDocIndex(mCursorPos); - - S32 new_line = line; - if( (delta < 0) && (line > 0 ) ) - { - new_line = line - 1; - } - else if( (delta > 0) && (line < (getLineCount() - 1)) ) - { - new_line = line + 1; - } - - LLRect visible_region = getVisibleDocumentRect(); - - S32 new_cursor_pos = getDocIndexFromLocalCoord(mDesiredXPixel, mLineInfoList[new_line].mRect.mBottom + mVisibleTextRect.mBottom - visible_region.mBottom, TRUE); - setCursorPos(new_cursor_pos, true); -} - -bool LLTextBase::scrolledToStart() -{ - return mScroller->isAtTop(); -} - -bool LLTextBase::scrolledToEnd() -{ - return mScroller->isAtBottom(); -} - - -bool LLTextBase::setCursor(S32 row, S32 column) -{ - if (0 <= row && row < (S32)mLineInfoList.size()) - { - S32 doc_pos = mLineInfoList[row].mDocIndexStart; - column = llclamp(column, 0, mLineInfoList[row].mDocIndexEnd - mLineInfoList[row].mDocIndexStart - 1); - doc_pos += column; - updateCursorXPos(); - - return setCursorPos(doc_pos); - } - return false; -} - - -bool LLTextBase::setCursorPos(S32 cursor_pos, bool keep_cursor_offset) -{ - S32 new_cursor_pos = cursor_pos; - if (new_cursor_pos != mCursorPos) - { - new_cursor_pos = getEditableIndex(new_cursor_pos, new_cursor_pos >= mCursorPos); - } - - mCursorPos = llclamp(new_cursor_pos, 0, (S32)getLength()); - needsScroll(); - if (!keep_cursor_offset) - updateCursorXPos(); - // did we get requested position? - return new_cursor_pos == cursor_pos; -} - -// constraint cursor to editable segments of document -S32 LLTextBase::getEditableIndex(S32 index, bool increasing_direction) -{ - segment_set_t::iterator segment_iter; - S32 offset; - getSegmentAndOffset(index, &segment_iter, &offset); - if (segment_iter == mSegments.end()) - { - return 0; - } - - LLTextSegmentPtr segmentp = *segment_iter; - - if (segmentp->canEdit()) - { - return segmentp->getStart() + offset; - } - else if (segmentp->getStart() < index && index < segmentp->getEnd()) - { - // bias towards document end - if (increasing_direction) - { - return segmentp->getEnd(); - } - // bias towards document start - else - { - return segmentp->getStart(); - } - } - else - { - return index; - } -} - -void LLTextBase::updateRects() -{ - if (mLineInfoList.empty()) - { - mTextBoundingRect = LLRect(0, mVPad, mHPad, 0); - } - else - { - mTextBoundingRect = mLineInfoList.begin()->mRect; - for (line_list_t::const_iterator line_iter = ++mLineInfoList.begin(); - line_iter != mLineInfoList.end(); - ++line_iter) - { - mTextBoundingRect.unionWith(line_iter->mRect); - } - - mTextBoundingRect.mTop += mVPad; - // subtract a pixel off the bottom to deal with rounding errors in measuring font height - mTextBoundingRect.mBottom -= 1; - - S32 delta_pos = -mTextBoundingRect.mBottom; - // move line segments to fit new document rect - for (line_list_t::iterator it = mLineInfoList.begin(); it != mLineInfoList.end(); ++it) - { - it->mRect.translate(0, delta_pos); - } - mTextBoundingRect.translate(0, delta_pos); - } - - // update document container dimensions according to text contents - LLRect doc_rect = mTextBoundingRect; - // use old mVisibleTextRect constraint document to width of viewable region - doc_rect.mLeft = 0; - - // allow horizontal scrolling? - // if so, use entire width of text contents - // otherwise, stop at width of mVisibleTextRect - doc_rect.mRight = mScroller - ? llmax(mVisibleTextRect.getWidth(), mTextBoundingRect.mRight) - : mVisibleTextRect.getWidth(); - - mDocumentView->setShape(doc_rect); - - //update mVisibleTextRect *after* mDocumentView has been resized - // so that scrollbars are added if document needs to scroll - // since mVisibleTextRect does not include scrollbars - LLRect old_text_rect = mVisibleTextRect; - mVisibleTextRect = mScroller ? mScroller->getContentWindowRect() : getLocalRect(); - //FIXME: replace border with image? - if (mBorderVisible) - { - mVisibleTextRect.stretch(-1); - } - if (mVisibleTextRect != old_text_rect) - { - needsReflow(); - } - - // update document container again, using new mVisibleTextRect (that has scrollbars enabled as needed) - doc_rect.mRight = mScroller - ? llmax(mVisibleTextRect.getWidth(), mTextBoundingRect.mRight) - : mVisibleTextRect.getWidth(); - mDocumentView->setShape(doc_rect); -} - - -void LLTextBase::startSelection() -{ - if( !mIsSelecting ) - { - mIsSelecting = TRUE; - mSelectionStart = mCursorPos; - mSelectionEnd = mCursorPos; - } -} - -void LLTextBase::endSelection() -{ - if( mIsSelecting ) - { - mIsSelecting = FALSE; - mSelectionEnd = mCursorPos; - } -} - -// get portion of document that is visible in text editor -LLRect LLTextBase::getVisibleDocumentRect() const -{ - if (mScroller) - { - return mScroller->getVisibleContentRect(); - } - else - { - // entire document rect is visible when not scrolling - // but offset according to height of widget - LLRect doc_rect = mDocumentView->getLocalRect(); - doc_rect.mLeft -= mDocumentView->getRect().mLeft; - // adjust for height of text above widget baseline - doc_rect.mBottom = doc_rect.getHeight() - mVisibleTextRect.getHeight(); - return doc_rect; - } -} - -// -// LLTextSegment -// - -LLTextSegment::~LLTextSegment() -{} - -bool LLTextSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const { width = 0; height = 0; return false;} -S32 LLTextSegment::getOffset(S32 segment_local_x_coord, S32 start_offset, S32 num_chars, bool round) const { return 0; } -S32 LLTextSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const { return 0; } -void LLTextSegment::updateLayout(const LLTextBase& editor) {} -F32 LLTextSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect) { return draw_rect.mLeft; } -bool LLTextSegment::canEdit() const { return false; } -void LLTextSegment::unlinkFromDocument(LLTextBase*) {} -void LLTextSegment::linkToDocument(LLTextBase*) {} -const LLColor4& LLTextSegment::getColor() const { return LLColor4::white; } -//void LLTextSegment::setColor(const LLColor4 &color) {} -LLStyleConstSP LLTextSegment::getStyle() const {static LLStyleConstSP sp(new LLStyle()); return sp; } -void LLTextSegment::setStyle(LLStyleConstSP style) {} -void LLTextSegment::setToken( LLKeywordToken* token ) {} -LLKeywordToken* LLTextSegment::getToken() const { return NULL; } -void LLTextSegment::setToolTip( const std::string &msg ) {} -void LLTextSegment::dump() const {} -BOOL LLTextSegment::handleMouseDown(S32 x, S32 y, MASK mask) { return FALSE; } -BOOL LLTextSegment::handleMouseUp(S32 x, S32 y, MASK mask) { return FALSE; } -BOOL LLTextSegment::handleMiddleMouseDown(S32 x, S32 y, MASK mask) { return FALSE; } -BOOL LLTextSegment::handleMiddleMouseUp(S32 x, S32 y, MASK mask) { return FALSE; } -BOOL LLTextSegment::handleRightMouseDown(S32 x, S32 y, MASK mask) { return FALSE; } -BOOL LLTextSegment::handleRightMouseUp(S32 x, S32 y, MASK mask) { return FALSE; } -BOOL LLTextSegment::handleDoubleClick(S32 x, S32 y, MASK mask) { return FALSE; } -BOOL LLTextSegment::handleHover(S32 x, S32 y, MASK mask) { return FALSE; } -BOOL LLTextSegment::handleScrollWheel(S32 x, S32 y, S32 clicks) { return FALSE; } -BOOL LLTextSegment::handleToolTip(S32 x, S32 y, MASK mask) { return FALSE; } -std::string LLTextSegment::getName() const { return ""; } -void LLTextSegment::onMouseCaptureLost() {} -void LLTextSegment::screenPointToLocal(S32 screen_x, S32 screen_y, S32* local_x, S32* local_y) const {} -void LLTextSegment::localPointToScreen(S32 local_x, S32 local_y, S32* screen_x, S32* screen_y) const {} -BOOL LLTextSegment::hasMouseCapture() { return FALSE; } - -// -// LLNormalTextSegment -// - -LLNormalTextSegment::LLNormalTextSegment( LLStyleConstSP style, S32 start, S32 end, LLTextBase& editor ) -: LLTextSegment(start, end), - mStyle( style ), - mToken(NULL), - mEditor(editor) -{ - mFontHeight = llceil(mStyle->getFont()->getLineHeight()); - - LLUIImagePtr image = mStyle->getImage(); - if (image.notNull()) - { - mImageLoadedConnection = image->addLoadedCallback(boost::bind(&LLTextBase::needsReflow, &mEditor, start)); - } -} - -LLNormalTextSegment::LLNormalTextSegment( const LLColor4& color, S32 start, S32 end, LLTextBase& editor, BOOL is_visible) -: LLTextSegment(start, end), - mToken(NULL), - mEditor(editor) -{ - mStyle = new LLStyle(LLStyle::Params().visible(is_visible).color(color)); - - mFontHeight = llceil(mStyle->getFont()->getLineHeight()); -} - -LLNormalTextSegment::~LLNormalTextSegment() -{ - mImageLoadedConnection.disconnect(); -} - - -F32 LLNormalTextSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect) -{ - if( end - start > 0 ) - { - return drawClippedSegment( getStart() + start, getStart() + end, selection_start, selection_end, draw_rect); - } - return draw_rect.mLeft; -} - -// Draws a single text segment, reversing the color for selection if needed. -F32 LLNormalTextSegment::drawClippedSegment(S32 seg_start, S32 seg_end, S32 selection_start, S32 selection_end, LLRect rect) -{ - F32 alpha = LLViewDrawContext::getCurrentContext().mAlpha; - - const LLWString &text = mEditor.getWText(); - - F32 right_x = rect.mLeft; - if (!mStyle->isVisible()) - { - return right_x; - } - - const LLFontGL* font = mStyle->getFont(); - - LLColor4 color = (mEditor.getReadOnly() ? mStyle->getReadOnlyColor() : mStyle->getColor()) % alpha; - - if( selection_start > seg_start ) - { - // Draw normally - S32 start = seg_start; - S32 end = llmin( selection_start, seg_end ); - S32 length = end - start; - font->render(text, start, - rect.mLeft, rect.mTop, - color, - LLFontGL::LEFT, LLFontGL::TOP, - LLFontGL::NORMAL, - mStyle->getShadowType(), - length, rect.getWidth(), - &right_x, - mEditor.getUseEllipses()); - } - rect.mLeft = (S32)ceil(right_x); - - if( (selection_start < seg_end) && (selection_end > seg_start) ) - { - // Draw reversed - S32 start = llmax( selection_start, seg_start ); - S32 end = llmin( selection_end, seg_end ); - S32 length = end - start; - - font->render(text, start, - rect.mLeft, rect.mTop, - LLColor4( 1.f - color.mV[0], 1.f - color.mV[1], 1.f - color.mV[2], 1.f ), - LLFontGL::LEFT, LLFontGL::TOP, - LLFontGL::NORMAL, - LLFontGL::NO_SHADOW, - length, rect.getWidth(), - &right_x, - mEditor.getUseEllipses()); - } - rect.mLeft = (S32)ceil(right_x); - if( selection_end < seg_end ) - { - // Draw normally - S32 start = llmax( selection_end, seg_start ); - S32 end = seg_end; - S32 length = end - start; - font->render(text, start, - rect.mLeft, rect.mTop, - color, - LLFontGL::LEFT, LLFontGL::TOP, - LLFontGL::NORMAL, - mStyle->getShadowType(), - length, rect.getWidth(), - &right_x, - mEditor.getUseEllipses()); - } - return right_x; -} - -BOOL LLNormalTextSegment::handleHover(S32 x, S32 y, MASK mask) -{ - if (getStyle() && getStyle()->isLink()) - { - // Only process the click if it's actually in this segment, not to the right of the end-of-line. - if(mEditor.getSegmentAtLocalPos(x, y, false) == this) - { - LLUI::getWindow()->setCursor(UI_CURSOR_HAND); - return TRUE; - } - } - return FALSE; -} - -BOOL LLNormalTextSegment::handleRightMouseDown(S32 x, S32 y, MASK mask) -{ - if (getStyle() && getStyle()->isLink()) - { - // Only process the click if it's actually in this segment, not to the right of the end-of-line. - if(mEditor.getSegmentAtLocalPos(x, y, false) == this) - { - mEditor.createUrlContextMenu(x, y, getStyle()->getLinkHREF()); - return TRUE; - } - } - return FALSE; -} - -BOOL LLNormalTextSegment::handleMouseDown(S32 x, S32 y, MASK mask) -{ - if (getStyle() && getStyle()->isLink()) - { - // Only process the click if it's actually in this segment, not to the right of the end-of-line. - if(mEditor.getSegmentAtLocalPos(x, y, false) == this) - { - // eat mouse down event on hyperlinks, so we get the mouse up - return TRUE; - } - } - - return FALSE; -} - -BOOL LLNormalTextSegment::handleMouseUp(S32 x, S32 y, MASK mask) -{ - if (getStyle() && getStyle()->isLink()) - { - // Only process the click if it's actually in this segment, not to the right of the end-of-line. - if(mEditor.getSegmentAtLocalPos(x, y, false) == this) - { - LLUrlAction::clickAction(getStyle()->getLinkHREF()); - return TRUE; - } - } - - return FALSE; -} - -BOOL LLNormalTextSegment::handleToolTip(S32 x, S32 y, MASK mask) -{ - std::string msg; - // do we have a tooltip for a loaded keyword (for script editor)? - if (mToken && !mToken->getToolTip().empty()) - { - const LLWString& wmsg = mToken->getToolTip(); - LLToolTipMgr::instance().show(wstring_to_utf8str(wmsg)); - return TRUE; - } - // or do we have an explicitly set tooltip (e.g., for Urls) - if (!mTooltip.empty()) - { - LLToolTipMgr::instance().show(mTooltip); - return TRUE; - } - - return FALSE; -} - -void LLNormalTextSegment::setToolTip(const std::string& tooltip) -{ - // we cannot replace a keyword tooltip that's loaded from a file - if (mToken) - { - llwarns << "LLTextSegment::setToolTip: cannot replace keyword tooltip." << llendl; - return; - } - mTooltip = tooltip; -} - -bool LLNormalTextSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const -{ - height = 0; - width = 0; - if (num_chars > 0) - { - height = mFontHeight; - const LLWString &text = mEditor.getWText(); - // if last character is a newline, then return true, forcing line break - width = mStyle->getFont()->getWidth(text.c_str(), mStart + first_char, num_chars); - } - return false; -} - -S32 LLNormalTextSegment::getOffset(S32 segment_local_x_coord, S32 start_offset, S32 num_chars, bool round) const -{ - const LLWString &text = mEditor.getWText(); - return mStyle->getFont()->charFromPixelOffset(text.c_str(), mStart + start_offset, - (F32)segment_local_x_coord, - F32_MAX, - num_chars, - round); -} - -S32 LLNormalTextSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const -{ - const LLWString &text = mEditor.getWText(); - - LLUIImagePtr image = mStyle->getImage(); - if( image.notNull()) - { - num_pixels = llmax(0, num_pixels - image->getWidth()); - } - - S32 last_char = mEnd; - - // set max characters to length of segment, or to first newline - max_chars = llmin(max_chars, last_char - (mStart + segment_offset)); - - // if no character yet displayed on this line, don't require word wrapping since - // we can just move to the next line, otherwise insist on it so we make forward progress - LLFontGL::EWordWrapStyle word_wrap_style = (line_offset == 0) - ? LLFontGL::WORD_BOUNDARY_IF_POSSIBLE - : LLFontGL::ONLY_WORD_BOUNDARIES; - S32 num_chars = mStyle->getFont()->maxDrawableChars(text.c_str() + segment_offset + mStart, - (F32)num_pixels, - max_chars, - word_wrap_style); - - if (num_chars == 0 - && line_offset == 0 - && max_chars > 0) - { - // If at the beginning of a line, and a single character won't fit, draw it anyway - num_chars = 1; - } - - // include *either* the EOF or newline character in this run of text - // but not both - S32 last_char_in_run = mStart + segment_offset + num_chars; - // check length first to avoid indexing off end of string - if (last_char_in_run < mEnd - && (last_char_in_run >= mEditor.getLength() )) - { - num_chars++; - } - return num_chars; -} - -void LLNormalTextSegment::dump() const -{ - llinfos << "Segment [" << -// mColor.mV[VX] << ", " << -// mColor.mV[VY] << ", " << -// mColor.mV[VZ] << "]\t[" << - mStart << ", " << - getEnd() << "]" << - llendl; -} - - -// -// LLInlineViewSegment -// - -LLInlineViewSegment::LLInlineViewSegment(const Params& p, S32 start, S32 end) -: LLTextSegment(start, end), - mView(p.view), - mForceNewLine(p.force_newline), - mLeftPad(p.left_pad), - mRightPad(p.right_pad), - mTopPad(p.top_pad), - mBottomPad(p.bottom_pad) -{ -} - -LLInlineViewSegment::~LLInlineViewSegment() -{ - mView->die(); -} - -bool LLInlineViewSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const -{ - if (first_char == 0 && num_chars == 0) - { - // we didn't fit on a line, the widget will fall on the next line - // so dimensions here are 0 - width = 0; - height = 0; - } - else - { - width = mLeftPad + mRightPad + mView->getRect().getWidth(); - height = mBottomPad + mTopPad + mView->getRect().getHeight(); - } - - return false; -} - -S32 LLInlineViewSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const -{ - // if putting a widget anywhere but at the beginning of a line - // and the widget doesn't fit or mForceNewLine is true - // then return 0 chars for that line, and all characters for the next - if (line_offset != 0 - && (mForceNewLine || num_pixels < mView->getRect().getWidth())) - { - return 0; - } - else - { - return mEnd - mStart; - } -} - -void LLInlineViewSegment::updateLayout(const LLTextBase& editor) -{ - LLRect start_rect = editor.getDocRectFromDocIndex(mStart); - mView->setOrigin(start_rect.mLeft + mLeftPad, start_rect.mBottom + mBottomPad); -} - -F32 LLInlineViewSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect) -{ - // return padded width of widget - // widget is actually drawn during mDocumentView's draw() - return (F32)(draw_rect.mLeft + mView->getRect().getWidth() + mLeftPad + mRightPad); -} - -void LLInlineViewSegment::unlinkFromDocument(LLTextBase* editor) -{ - editor->removeDocumentChild(mView); -} - -void LLInlineViewSegment::linkToDocument(LLTextBase* editor) -{ - editor->addDocumentChild(mView); -} - -LLLineBreakTextSegment::LLLineBreakTextSegment(S32 pos):LLTextSegment(pos,pos+1) -{ - LLStyleSP s( new LLStyle(LLStyle::Params().visible(true))); - - mFontHeight = llceil(s->getFont()->getLineHeight()); -} -LLLineBreakTextSegment::LLLineBreakTextSegment(LLStyleConstSP style,S32 pos):LLTextSegment(pos,pos+1) -{ - mFontHeight = llceil(style->getFont()->getLineHeight()); -} -LLLineBreakTextSegment::~LLLineBreakTextSegment() -{ -} -bool LLLineBreakTextSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const -{ - width = 0; - height = mFontHeight; - - return true; -} -S32 LLLineBreakTextSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const -{ - return 1; -} -F32 LLLineBreakTextSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect) -{ - return draw_rect.mLeft; -} - -LLImageTextSegment::LLImageTextSegment(LLStyleConstSP style,S32 pos,class LLTextBase& editor) - :LLTextSegment(pos,pos+1) - ,mStyle( style ) - ,mEditor(editor) -{ -} - -LLImageTextSegment::~LLImageTextSegment() -{ -} - -static const S32 IMAGE_HPAD = 3; - -bool LLImageTextSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const -{ - width = 0; - height = llceil(mStyle->getFont()->getLineHeight());; - - LLUIImagePtr image = mStyle->getImage(); - if( num_chars>0 && image.notNull()) - { - width += image->getWidth() + IMAGE_HPAD; - height = llmax(height, image->getHeight() + IMAGE_HPAD ); - } - return false; -} - -S32 LLImageTextSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const -{ - LLUIImagePtr image = mStyle->getImage(); - S32 image_width = image->getWidth(); - if(line_offset == 0 || num_pixels>image_width + IMAGE_HPAD) - { - return 1; - } - return 0; -} - -F32 LLImageTextSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect) -{ - if ( (start >= 0) && (end <= mEnd - mStart)) - { - LLColor4 color = LLColor4::white % mEditor.getDrawContext().mAlpha; - LLUIImagePtr image = mStyle->getImage(); - S32 style_image_height = image->getHeight(); - S32 style_image_width = image->getWidth(); - // Text is drawn from the top of the draw_rect downward - - S32 text_center = draw_rect.mTop - (draw_rect.getHeight() / 2); - // Align image to center of draw rect - S32 image_bottom = text_center - (style_image_height / 2); - image->draw(draw_rect.mLeft, image_bottom, - style_image_width, style_image_height, color); - - const S32 IMAGE_HPAD = 3; - return draw_rect.mLeft + style_image_width + IMAGE_HPAD; - } - return 0.0; -} - +/**
+ * @file lltextbase.cpp
+ * @author Martin Reddy
+ * @brief The base class of text box/editor, providing Url handling support
+ *
+ * $LicenseInfo:firstyear=2009&license=viewergpl$
+ *
+ * Copyright (c) 2009, Linden Research, Inc.
+ *
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab. Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ *
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ *
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ *
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "linden_common.h"
+
+#include "lltextbase.h"
+
+#include "lllocalcliprect.h"
+#include "llmenugl.h"
+#include "llscrollcontainer.h"
+#include "llstl.h"
+#include "lltextparser.h"
+#include "lltextutil.h"
+#include "lltooltip.h"
+#include "lluictrl.h"
+#include "llurlaction.h"
+#include "llurlregistry.h"
+#include "llview.h"
+#include "llwindow.h"
+#include <boost/bind.hpp>
+
+const F32 CURSOR_FLASH_DELAY = 1.0f; // in seconds
+const S32 CURSOR_THICKNESS = 2;
+
+LLTextBase::line_info::line_info(S32 index_start, S32 index_end, LLRect rect, S32 line_num)
+: mDocIndexStart(index_start),
+ mDocIndexEnd(index_end),
+ mRect(rect),
+ mLineNum(line_num)
+{}
+
+bool LLTextBase::compare_segment_end::operator()(const LLTextSegmentPtr& a, const LLTextSegmentPtr& b) const
+{
+ // sort empty spans (e.g. 11-11) after previous non-empty spans (e.g. 5-11)
+ if (a->getEnd() == b->getEnd())
+ {
+ return a->getStart() < b->getStart();
+ }
+ return a->getEnd() < b->getEnd();
+}
+
+
+// helper functors
+struct LLTextBase::compare_bottom
+{
+ bool operator()(const S32& a, const LLTextBase::line_info& b) const
+ {
+ return a > b.mRect.mBottom; // bottom of a is higher than bottom of b
+ }
+
+ bool operator()(const LLTextBase::line_info& a, const S32& b) const
+ {
+ return a.mRect.mBottom > b; // bottom of a is higher than bottom of b
+ }
+
+ bool operator()(const LLTextBase::line_info& a, const LLTextBase::line_info& b) const
+ {
+ return a.mRect.mBottom > b.mRect.mBottom; // bottom of a is higher than bottom of b
+ }
+
+};
+
+// helper functors
+struct LLTextBase::compare_top
+{
+ bool operator()(const S32& a, const LLTextBase::line_info& b) const
+ {
+ return a > b.mRect.mTop; // top of a is higher than top of b
+ }
+
+ bool operator()(const LLTextBase::line_info& a, const S32& b) const
+ {
+ return a.mRect.mTop > b; // top of a is higher than top of b
+ }
+
+ bool operator()(const LLTextBase::line_info& a, const LLTextBase::line_info& b) const
+ {
+ return a.mRect.mTop > b.mRect.mTop; // top of a is higher than top of b
+ }
+};
+
+struct LLTextBase::line_end_compare
+{
+ bool operator()(const S32& pos, const LLTextBase::line_info& info) const
+ {
+ return (pos < info.mDocIndexEnd);
+ }
+
+ bool operator()(const LLTextBase::line_info& info, const S32& pos) const
+ {
+ return (info.mDocIndexEnd < pos);
+ }
+
+ bool operator()(const LLTextBase::line_info& a, const LLTextBase::line_info& b) const
+ {
+ return (a.mDocIndexEnd < b.mDocIndexEnd);
+ }
+
+};
+
+//////////////////////////////////////////////////////////////////////////
+//
+// LLTextBase
+//
+
+// register LLTextBase::Params under name "textbase"
+static LLWidgetNameRegistry::StaticRegistrar sRegisterTextBaseParams(&typeid(LLTextBase::Params), "textbase");
+
+LLTextBase::LineSpacingParams::LineSpacingParams()
+: multiple("multiple", 1.f),
+ pixels("pixels", 0)
+{
+}
+
+
+LLTextBase::Params::Params()
+: cursor_color("cursor_color"),
+ text_color("text_color"),
+ text_readonly_color("text_readonly_color"),
+ bg_visible("bg_visible", false),
+ border_visible("border_visible", false),
+ bg_readonly_color("bg_readonly_color"),
+ bg_writeable_color("bg_writeable_color"),
+ bg_focus_color("bg_focus_color"),
+ allow_scroll("allow_scroll", true),
+ plain_text("plain_text",false),
+ track_end("track_end", false),
+ read_only("read_only", false),
+ v_pad("v_pad", 0),
+ h_pad("h_pad", 0),
+ clip_partial("clip_partial", true),
+ line_spacing("line_spacing"),
+ max_text_length("max_length", 255),
+ font_shadow("font_shadow"),
+ wrap("wrap"),
+ use_ellipses("use_ellipses", false),
+ allow_html("allow_html", false),
+ parse_highlights("parse_highlights", false)
+{
+ addSynonym(track_end, "track_bottom");
+ addSynonym(wrap, "word_wrap");
+}
+
+
+LLTextBase::LLTextBase(const LLTextBase::Params &p)
+: LLUICtrl(p, LLTextViewModelPtr(new LLTextViewModel)),
+ mURLClickSignal(),
+ mMaxTextByteLength( p.max_text_length ),
+ mDefaultFont(p.font),
+ mFontShadow(p.font_shadow),
+ mPopupMenu(NULL),
+ mReadOnly(p.read_only),
+ mCursorColor(p.cursor_color),
+ mFgColor(p.text_color),
+ mBorderVisible( p.border_visible ),
+ mReadOnlyFgColor(p.text_readonly_color),
+ mWriteableBgColor(p.bg_writeable_color),
+ mReadOnlyBgColor(p.bg_readonly_color),
+ mFocusBgColor(p.bg_focus_color),
+ mReflowIndex(S32_MAX),
+ mCursorPos( 0 ),
+ mScrollNeeded(FALSE),
+ mDesiredXPixel(-1),
+ mHPad(p.h_pad),
+ mVPad(p.v_pad),
+ mHAlign(p.font_halign),
+ mVAlign(p.font_valign),
+ mLineSpacingMult(p.line_spacing.multiple),
+ mLineSpacingPixels(p.line_spacing.pixels),
+ mClipPartial(p.clip_partial && !p.allow_scroll),
+ mTrackEnd( p.track_end ),
+ mScrollIndex(-1),
+ mSelectionStart( 0 ),
+ mSelectionEnd( 0 ),
+ mIsSelecting( FALSE ),
+ mPlainText ( p.plain_text ),
+ mWordWrap(p.wrap),
+ mUseEllipses( p.use_ellipses ),
+ mParseHTML(p.allow_html),
+ mParseHighlights(p.parse_highlights),
+ mBGVisible(p.bg_visible),
+ mScroller(NULL)
+{
+ if(p.allow_scroll)
+ {
+ LLScrollContainer::Params scroll_params;
+ scroll_params.name = "text scroller";
+ scroll_params.rect = getLocalRect();
+ scroll_params.follows.flags = FOLLOWS_ALL;
+ scroll_params.is_opaque = false;
+ scroll_params.mouse_opaque = false;
+ scroll_params.min_auto_scroll_rate = 200;
+ scroll_params.max_auto_scroll_rate = 800;
+ scroll_params.border_visible = p.border_visible;
+ mScroller = LLUICtrlFactory::create<LLScrollContainer>(scroll_params);
+ addChild(mScroller);
+ }
+
+ LLView::Params view_params;
+ view_params.name = "text_contents";
+ view_params.rect = LLRect(0, 500, 500, 0);
+ view_params.mouse_opaque = false;
+
+ mDocumentView = LLUICtrlFactory::create<LLView>(view_params);
+ if (mScroller)
+ {
+ mScroller->addChild(mDocumentView);
+ }
+ else
+ {
+ addChild(mDocumentView);
+ }
+
+ createDefaultSegment();
+
+ updateRects();
+}
+
+LLTextBase::~LLTextBase()
+{
+ // Menu, like any other LLUICtrl, is deleted by its parent - gMenuHolder
+
+ mSegments.clear();
+}
+
+void LLTextBase::initFromParams(const LLTextBase::Params& p)
+{
+ LLUICtrl::initFromParams(p);
+ resetDirty(); // Update saved text state
+ updateSegments();
+
+ // HACK: work around enabled == readonly design bug -- RN
+ // setEnabled will modify our read only status, so do this after
+ // LLTextBase::initFromParams
+ if (p.read_only.isProvided())
+ {
+ mReadOnly = p.read_only;
+ }
+
+ // HACK: text editors always need to be enabled so that we can scroll
+ LLView::setEnabled(true);
+}
+
+bool LLTextBase::truncate()
+{
+ BOOL did_truncate = FALSE;
+
+ // First rough check - if we're less than 1/4th the size, we're OK
+ if (getLength() >= S32(mMaxTextByteLength / 4))
+ {
+ // Have to check actual byte size
+ LLWString text(getWText());
+ S32 utf8_byte_size = wstring_utf8_length(text);
+ if ( utf8_byte_size > mMaxTextByteLength )
+ {
+ // Truncate safely in UTF-8
+ std::string temp_utf8_text = wstring_to_utf8str(text);
+ temp_utf8_text = utf8str_truncate( temp_utf8_text, mMaxTextByteLength );
+ LLWString text = utf8str_to_wstring( temp_utf8_text );
+ // remove extra bit of current string, to preserve formatting, etc.
+ removeStringNoUndo(text.size(), getWText().size() - text.size());
+ did_truncate = TRUE;
+ }
+ }
+
+ return did_truncate;
+}
+
+LLStyle::Params LLTextBase::getDefaultStyleParams()
+{
+ return LLStyle::Params()
+ .color(LLUIColor(&mFgColor))
+ .readonly_color(LLUIColor(&mReadOnlyFgColor))
+ .font(mDefaultFont)
+ .drop_shadow(mFontShadow);
+}
+
+void LLTextBase::onValueChange(S32 start, S32 end)
+{
+}
+
+
+// Draws the black box behind the selected text
+void LLTextBase::drawSelectionBackground()
+{
+ // Draw selection even if we don't have keyboard focus for search/replace
+ if( hasSelection() && !mLineInfoList.empty())
+ {
+ std::vector<LLRect> selection_rects;
+
+ S32 selection_left = llmin( mSelectionStart, mSelectionEnd );
+ S32 selection_right = llmax( mSelectionStart, mSelectionEnd );
+ LLRect selection_rect = mVisibleTextRect;
+
+ // Skip through the lines we aren't drawing.
+ LLRect content_display_rect = getVisibleDocumentRect();
+
+ // binary search for line that starts before top of visible buffer
+ line_list_t::const_iterator line_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), content_display_rect.mTop, compare_bottom());
+ line_list_t::const_iterator end_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), content_display_rect.mBottom, compare_top());
+
+ bool done = false;
+
+ // Find the coordinates of the selected area
+ for (;line_iter != end_iter && !done; ++line_iter)
+ {
+ // is selection visible on this line?
+ if (line_iter->mDocIndexEnd > selection_left && line_iter->mDocIndexStart < selection_right)
+ {
+ segment_set_t::iterator segment_iter;
+ S32 segment_offset;
+ getSegmentAndOffset(line_iter->mDocIndexStart, &segment_iter, &segment_offset);
+
+ LLRect selection_rect;
+ selection_rect.mLeft = line_iter->mRect.mLeft;
+ selection_rect.mRight = line_iter->mRect.mLeft;
+ selection_rect.mBottom = line_iter->mRect.mBottom;
+ selection_rect.mTop = line_iter->mRect.mTop;
+
+ for(;segment_iter != mSegments.end(); ++segment_iter, segment_offset = 0)
+ {
+ LLTextSegmentPtr segmentp = *segment_iter;
+
+ S32 segment_line_start = segmentp->getStart() + segment_offset;
+ S32 segment_line_end = llmin(segmentp->getEnd(), line_iter->mDocIndexEnd);
+
+ if (segment_line_start > segment_line_end) break;
+
+ S32 segment_width = 0;
+ S32 segment_height = 0;
+
+ // if selection after beginning of segment
+ if(selection_left >= segment_line_start)
+ {
+ S32 num_chars = llmin(selection_left, segment_line_end) - segment_line_start;
+ segmentp->getDimensions(segment_offset, num_chars, segment_width, segment_height);
+ selection_rect.mLeft += segment_width;
+ }
+
+ // if selection_right == segment_line_end then that means we are the first character of the next segment
+ // or first character of the next line, in either case we want to add the length of the current segment
+ // to the selection rectangle and continue.
+ // if selection right > segment_line_end then selection spans end of current segment...
+ if (selection_right >= segment_line_end)
+ {
+ // extend selection slightly beyond end of line
+ // to indicate selection of newline character (use "n" character to determine width)
+ S32 num_chars = segment_line_end - segment_line_start;
+ segmentp->getDimensions(segment_offset, num_chars, segment_width, segment_height);
+ selection_rect.mRight += segment_width;
+ }
+ // else if selection ends on current segment...
+ else
+ {
+ S32 num_chars = selection_right - segment_line_start;
+ segmentp->getDimensions(segment_offset, num_chars, segment_width, segment_height);
+ selection_rect.mRight += segment_width;
+
+ break;
+ }
+ }
+ selection_rects.push_back(selection_rect);
+ }
+ }
+
+ // Draw the selection box (we're using a box instead of reversing the colors on the selected text).
+ gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+ const LLColor4& color = mReadOnly ? mReadOnlyFgColor.get() : mFgColor.get();
+ F32 alpha = hasFocus() ? 0.7f : 0.3f;
+ alpha *= getDrawContext().mAlpha;
+ LLColor4 selection_color(color.mV[VRED], color.mV[VGREEN], color.mV[VBLUE], alpha);
+
+ for (std::vector<LLRect>::iterator rect_it = selection_rects.begin();
+ rect_it != selection_rects.end();
+ ++rect_it)
+ {
+ LLRect selection_rect = *rect_it;
+ selection_rect.translate(mVisibleTextRect.mLeft - content_display_rect.mLeft, mVisibleTextRect.mBottom - content_display_rect.mBottom);
+ gl_rect_2d(selection_rect, selection_color);
+ }
+ }
+}
+
+void LLTextBase::drawCursor()
+{
+ F32 alpha = getDrawContext().mAlpha;
+
+ if( hasFocus()
+ && gFocusMgr.getAppHasFocus()
+ && !mReadOnly)
+ {
+ const LLWString &wtext = getWText();
+ const llwchar* text = wtext.c_str();
+
+ LLRect cursor_rect = getLocalRectFromDocIndex(mCursorPos);
+ cursor_rect.translate(-1, 0);
+ segment_set_t::iterator seg_it = getSegIterContaining(mCursorPos);
+
+ // take style from last segment
+ LLTextSegmentPtr segmentp;
+
+ if (seg_it != mSegments.end())
+ {
+ segmentp = *seg_it;
+ }
+ else
+ {
+ //segmentp = mSegments.back();
+ return;
+ }
+
+ // Draw the cursor
+ // (Flash the cursor every half second starting a fixed time after the last keystroke)
+ F32 elapsed = mCursorBlinkTimer.getElapsedTimeF32();
+ if( (elapsed < CURSOR_FLASH_DELAY ) || (S32(elapsed * 2) & 1) )
+ {
+
+ if (LL_KIM_OVERWRITE == gKeyboard->getInsertMode() && !hasSelection())
+ {
+ S32 segment_width = 0;
+ S32 segment_height = 0;
+ segmentp->getDimensions(mCursorPos - segmentp->getStart(), 1, segment_width, segment_height);
+ S32 width = llmax(CURSOR_THICKNESS, segment_width);
+ cursor_rect.mRight = cursor_rect.mLeft + width;
+ }
+ else
+ {
+ cursor_rect.mRight = cursor_rect.mLeft + CURSOR_THICKNESS;
+ }
+
+ gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+
+ LLColor4 cursor_color = mCursorColor.get() % alpha;
+ gGL.color4fv( cursor_color.mV );
+
+ gl_rect_2d(cursor_rect);
+
+ if (LL_KIM_OVERWRITE == gKeyboard->getInsertMode() && !hasSelection() && text[mCursorPos] != '\n')
+ {
+ LLColor4 text_color;
+ const LLFontGL* fontp;
+ if (segmentp)
+ {
+ text_color = segmentp->getColor();
+ fontp = segmentp->getStyle()->getFont();
+ }
+ else if (mReadOnly)
+ {
+ text_color = mReadOnlyFgColor.get();
+ fontp = mDefaultFont;
+ }
+ else
+ {
+ text_color = mFgColor.get();
+ fontp = mDefaultFont;
+ }
+ fontp->render(text, mCursorPos, cursor_rect,
+ LLColor4(1.f - text_color.mV[VRED], 1.f - text_color.mV[VGREEN], 1.f - text_color.mV[VBLUE], alpha),
+ LLFontGL::LEFT, mVAlign,
+ LLFontGL::NORMAL,
+ LLFontGL::NO_SHADOW,
+ 1);
+ }
+
+ // Make sure the IME is in the right place
+ LLRect screen_pos = calcScreenRect();
+ LLCoordGL ime_pos( screen_pos.mLeft + llfloor(cursor_rect.mLeft), screen_pos.mBottom + llfloor(cursor_rect.mTop) );
+
+ ime_pos.mX = (S32) (ime_pos.mX * LLUI::sGLScaleFactor.mV[VX]);
+ ime_pos.mY = (S32) (ime_pos.mY * LLUI::sGLScaleFactor.mV[VY]);
+ getWindow()->setLanguageTextInput( ime_pos );
+ }
+ }
+}
+
+void LLTextBase::drawText()
+{
+ const S32 text_len = getLength();
+ if( text_len <= 0 )
+ {
+ return;
+ }
+ S32 selection_left = -1;
+ S32 selection_right = -1;
+ // Draw selection even if we don't have keyboard focus for search/replace
+ if( hasSelection())
+ {
+ selection_left = llmin( mSelectionStart, mSelectionEnd );
+ selection_right = llmax( mSelectionStart, mSelectionEnd );
+ }
+
+ LLRect scrolled_view_rect = getVisibleDocumentRect();
+ std::pair<S32, S32> line_range = getVisibleLines(mClipPartial);
+ S32 first_line = line_range.first;
+ S32 last_line = line_range.second;
+ if (first_line >= last_line)
+ {
+ return;
+ }
+
+ S32 line_start = getLineStart(first_line);
+ // find first text segment that spans top of visible portion of text buffer
+ segment_set_t::iterator seg_iter = getSegIterContaining(line_start);
+ if (seg_iter == mSegments.end())
+ {
+ return;
+ }
+
+ LLTextSegmentPtr cur_segment = *seg_iter;
+
+ for (S32 cur_line = first_line; cur_line < last_line; cur_line++)
+ {
+ S32 next_line = cur_line + 1;
+ line_info& line = mLineInfoList[cur_line];
+
+ S32 next_start = -1;
+ S32 line_end = text_len;
+
+ if (next_line < getLineCount())
+ {
+ next_start = getLineStart(next_line);
+ line_end = next_start;
+ }
+
+ LLRect text_rect(line.mRect.mLeft + mVisibleTextRect.mLeft - scrolled_view_rect.mLeft,
+ line.mRect.mTop - scrolled_view_rect.mBottom + mVisibleTextRect.mBottom,
+ llmin(mDocumentView->getRect().getWidth(), line.mRect.mRight) - scrolled_view_rect.mLeft,
+ line.mRect.mBottom - scrolled_view_rect.mBottom + mVisibleTextRect.mBottom);
+
+ // draw a single line of text
+ S32 seg_start = line_start;
+ while( seg_start < line_end )
+ {
+ while( cur_segment->getEnd() <= seg_start )
+ {
+ seg_iter++;
+ if (seg_iter == mSegments.end())
+ {
+ llwarns << "Ran off the segmentation end!" << llendl;
+
+ return;
+ }
+ cur_segment = *seg_iter;
+ }
+
+ S32 clipped_end = llmin( line_end, cur_segment->getEnd() ) - cur_segment->getStart();
+
+ if (mUseEllipses // using ellipses
+ && clipped_end == line_end // last segment on line
+ && next_line == last_line // this is the last visible line
+ && last_line < (S32)mLineInfoList.size()) // and there is more text to display
+ {
+ // more lines of text to go, but we can't fit them
+ // so shrink text rect to force ellipses
+ text_rect.mRight -= 2;
+ }
+
+ text_rect.mLeft = (S32)(cur_segment->draw(seg_start - cur_segment->getStart(), clipped_end, selection_left, selection_right, text_rect));
+
+ seg_start = clipped_end + cur_segment->getStart();
+ }
+
+ line_start = next_start;
+ }
+}
+
+///////////////////////////////////////////////////////////////////
+// Returns change in number of characters in mWText
+
+S32 LLTextBase::insertStringNoUndo(S32 pos, const LLWString &wstr, LLTextBase::segment_vec_t* segments )
+{
+ LLWString text(getWText());
+ S32 old_len = text.length(); // length() returns character length
+ S32 insert_len = wstr.length();
+
+ pos = getEditableIndex(pos, true);
+
+ segment_set_t::iterator seg_iter = getSegIterContaining(pos);
+
+ LLTextSegmentPtr default_segment;
+
+ LLTextSegmentPtr segmentp;
+ if (seg_iter != mSegments.end())
+ {
+ segmentp = *seg_iter;
+ }
+ else
+ {
+ //segmentp = mSegments.back();
+ return pos;
+ }
+
+ if (segmentp->canEdit())
+ {
+ segmentp->setEnd(segmentp->getEnd() + insert_len);
+ if (seg_iter != mSegments.end())
+ {
+ ++seg_iter;
+ }
+ }
+ else
+ {
+ // create default editable segment to hold new text
+ LLStyleConstSP sp(new LLStyle(getDefaultStyleParams()));
+ default_segment = new LLNormalTextSegment( sp, pos, pos + insert_len, *this);
+ }
+
+ // shift remaining segments to right
+ for(;seg_iter != mSegments.end(); ++seg_iter)
+ {
+ LLTextSegmentPtr segmentp = *seg_iter;
+ segmentp->setStart(segmentp->getStart() + insert_len);
+ segmentp->setEnd(segmentp->getEnd() + insert_len);
+ }
+
+ // insert new segments
+ if (segments)
+ {
+ if (default_segment.notNull())
+ {
+ // potentially overwritten by segments passed in
+ insertSegment(default_segment);
+ }
+ for (segment_vec_t::iterator seg_iter = segments->begin();
+ seg_iter != segments->end();
+ ++seg_iter)
+ {
+ LLTextSegment* segmentp = *seg_iter;
+ insertSegment(segmentp);
+ }
+ }
+
+ text.insert(pos, wstr);
+ getViewModel()->setDisplay(text);
+
+ if ( truncate() )
+ {
+ insert_len = getLength() - old_len;
+ }
+
+ onValueChange(pos, pos + insert_len);
+ needsReflow(pos);
+
+ return insert_len;
+}
+
+S32 LLTextBase::removeStringNoUndo(S32 pos, S32 length)
+{
+ LLWString text(getWText());
+ segment_set_t::iterator seg_iter = getSegIterContaining(pos);
+ while(seg_iter != mSegments.end())
+ {
+ LLTextSegmentPtr segmentp = *seg_iter;
+ S32 end = pos + length;
+ if (segmentp->getStart() < pos)
+ {
+ // deleting from middle of segment
+ if (segmentp->getEnd() > end)
+ {
+ segmentp->setEnd(segmentp->getEnd() - length);
+ }
+ // truncating segment
+ else
+ {
+ segmentp->setEnd(pos);
+ }
+ }
+ else if (segmentp->getStart() < end)
+ {
+ // deleting entire segment
+ if (segmentp->getEnd() <= end)
+ {
+ // remove segment
+ segmentp->unlinkFromDocument(this);
+ segment_set_t::iterator seg_to_erase(seg_iter++);
+ mSegments.erase(seg_to_erase);
+ continue;
+ }
+ // deleting head of segment
+ else
+ {
+ segmentp->setStart(pos);
+ segmentp->setEnd(segmentp->getEnd() - length);
+ }
+ }
+ else
+ {
+ // shifting segments backward to fill deleted portion
+ segmentp->setStart(segmentp->getStart() - length);
+ segmentp->setEnd(segmentp->getEnd() - length);
+ }
+ ++seg_iter;
+ }
+
+ text.erase(pos, length);
+ getViewModel()->setDisplay(text);
+
+ // recreate default segment in case we erased everything
+ createDefaultSegment();
+
+ onValueChange(pos, pos);
+ needsReflow(pos);
+
+ return -length; // This will be wrong if someone calls removeStringNoUndo with an excessive length
+}
+
+S32 LLTextBase::overwriteCharNoUndo(S32 pos, llwchar wc)
+{
+ if (pos > (S32)getLength())
+ {
+ return 0;
+ }
+ LLWString text(getWText());
+ text[pos] = wc;
+ getViewModel()->setDisplay(text);
+
+ onValueChange(pos, pos + 1);
+ needsReflow(pos);
+
+ return 1;
+}
+
+
+void LLTextBase::createDefaultSegment()
+{
+ // ensures that there is always at least one segment
+ if (mSegments.empty())
+ {
+ LLStyleConstSP sp(new LLStyle(getDefaultStyleParams()));
+ LLTextSegmentPtr default_segment = new LLNormalTextSegment( sp, 0, getLength() + 1, *this);
+ mSegments.insert(default_segment);
+ default_segment->linkToDocument(this);
+ }
+}
+
+void LLTextBase::insertSegment(LLTextSegmentPtr segment_to_insert)
+{
+ if (segment_to_insert.isNull())
+ {
+ return;
+ }
+
+ segment_set_t::iterator cur_seg_iter = getSegIterContaining(segment_to_insert->getStart());
+ S32 reflow_start_index = 0;
+
+ if (cur_seg_iter == mSegments.end())
+ {
+ mSegments.insert(segment_to_insert);
+ segment_to_insert->linkToDocument(this);
+ reflow_start_index = segment_to_insert->getStart();
+ }
+ else
+ {
+ LLTextSegmentPtr cur_segmentp = *cur_seg_iter;
+ reflow_start_index = cur_segmentp->getStart();
+ if (cur_segmentp->getStart() < segment_to_insert->getStart())
+ {
+ S32 old_segment_end = cur_segmentp->getEnd();
+ // split old at start point for new segment
+ cur_segmentp->setEnd(segment_to_insert->getStart());
+ // advance to next segment
+ // insert remainder of old segment
+ LLStyleConstSP sp = cur_segmentp->getStyle();
+ LLTextSegmentPtr remainder_segment = new LLNormalTextSegment( sp, segment_to_insert->getStart(), old_segment_end, *this);
+ mSegments.insert(cur_seg_iter, remainder_segment);
+ remainder_segment->linkToDocument(this);
+ // insert new segment before remainder of old segment
+ mSegments.insert(cur_seg_iter, segment_to_insert);
+
+ segment_to_insert->linkToDocument(this);
+ // at this point, there will be two overlapping segments owning the text
+ // associated with the incoming segment
+ }
+ else
+ {
+ mSegments.insert(cur_seg_iter, segment_to_insert);
+ segment_to_insert->linkToDocument(this);
+ }
+
+ // now delete/truncate remaining segments as necessary
+ // cur_seg_iter points to segment before incoming segment
+ while(cur_seg_iter != mSegments.end())
+ {
+ cur_segmentp = *cur_seg_iter;
+ if (cur_segmentp == segment_to_insert)
+ {
+ ++cur_seg_iter;
+ continue;
+ }
+
+ if (cur_segmentp->getStart() >= segment_to_insert->getStart())
+ {
+ if(cur_segmentp->getEnd() <= segment_to_insert->getEnd())
+ {
+ cur_segmentp->unlinkFromDocument(this);
+ // grab copy of iterator to erase, and bump it
+ segment_set_t::iterator seg_to_erase(cur_seg_iter++);
+ mSegments.erase(seg_to_erase);
+ continue;
+ }
+ else
+ {
+ // last overlapping segment, clip to end of incoming segment
+ // and stop traversal
+ cur_segmentp->setStart(segment_to_insert->getEnd());
+ break;
+ }
+ }
+ ++cur_seg_iter;
+ }
+ }
+
+ // layout potentially changed
+ needsReflow(reflow_start_index);
+}
+
+BOOL LLTextBase::handleMouseDown(S32 x, S32 y, MASK mask)
+{
+ LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
+ if (cur_segment && cur_segment->handleMouseDown(x, y, mask))
+ {
+ return TRUE;
+ }
+
+ return LLUICtrl::handleMouseDown(x, y, mask);
+}
+
+BOOL LLTextBase::handleMouseUp(S32 x, S32 y, MASK mask)
+{
+ LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
+ if (cur_segment && cur_segment->handleMouseUp(x, y, mask))
+ {
+ // Did we just click on a link?
+ if (cur_segment->getStyle()
+ && cur_segment->getStyle()->isLink())
+ {
+ // *TODO: send URL here?
+ mURLClickSignal(this, LLSD() );
+ }
+ return TRUE;
+ }
+
+ return LLUICtrl::handleMouseUp(x, y, mask);
+}
+
+BOOL LLTextBase::handleMiddleMouseDown(S32 x, S32 y, MASK mask)
+{
+ LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
+ if (cur_segment && cur_segment->handleMiddleMouseDown(x, y, mask))
+ {
+ return TRUE;
+ }
+
+ return LLUICtrl::handleMiddleMouseDown(x, y, mask);
+}
+
+BOOL LLTextBase::handleMiddleMouseUp(S32 x, S32 y, MASK mask)
+{
+ LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
+ if (cur_segment && cur_segment->handleMiddleMouseUp(x, y, mask))
+ {
+ return TRUE;
+ }
+
+ return LLUICtrl::handleMiddleMouseUp(x, y, mask);
+}
+
+BOOL LLTextBase::handleRightMouseDown(S32 x, S32 y, MASK mask)
+{
+ LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
+ if (cur_segment && cur_segment->handleRightMouseDown(x, y, mask))
+ {
+ return TRUE;
+ }
+
+ return LLUICtrl::handleRightMouseDown(x, y, mask);
+}
+
+BOOL LLTextBase::handleRightMouseUp(S32 x, S32 y, MASK mask)
+{
+ LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
+ if (cur_segment && cur_segment->handleRightMouseUp(x, y, mask))
+ {
+ return TRUE;
+ }
+
+ return LLUICtrl::handleRightMouseUp(x, y, mask);
+}
+
+BOOL LLTextBase::handleDoubleClick(S32 x, S32 y, MASK mask)
+{
+ LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
+ if (cur_segment && cur_segment->handleDoubleClick(x, y, mask))
+ {
+ return TRUE;
+ }
+
+ return LLUICtrl::handleDoubleClick(x, y, mask);
+}
+
+BOOL LLTextBase::handleHover(S32 x, S32 y, MASK mask)
+{
+ LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
+ if (cur_segment && cur_segment->handleHover(x, y, mask))
+ {
+ return TRUE;
+ }
+
+ return LLUICtrl::handleHover(x, y, mask);
+}
+
+BOOL LLTextBase::handleScrollWheel(S32 x, S32 y, S32 clicks)
+{
+ LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
+ if (cur_segment && cur_segment->handleScrollWheel(x, y, clicks))
+ {
+ return TRUE;
+ }
+
+ return LLUICtrl::handleScrollWheel(x, y, clicks);
+}
+
+BOOL LLTextBase::handleToolTip(S32 x, S32 y, MASK mask)
+{
+ LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y);
+ if (cur_segment && cur_segment->handleToolTip(x, y, mask))
+ {
+ return TRUE;
+ }
+
+ return LLUICtrl::handleToolTip(x, y, mask);
+}
+
+
+void LLTextBase::reshape(S32 width, S32 height, BOOL called_from_parent)
+{
+ if (width != getRect().getWidth() || height != getRect().getHeight())
+ {
+ bool scrolled_to_bottom = mScroller ? mScroller->isAtBottom() : false;
+
+ LLUICtrl::reshape( width, height, called_from_parent );
+
+ if (mScroller && scrolled_to_bottom && mTrackEnd)
+ {
+ // keep bottom of text buffer visible
+ // do this here as well as in reflow to handle case
+ // where shrinking from top, which causes buffer to temporarily
+ // not be scrolled to the bottom, since the scroll index
+ // specified the _top_ of the visible document region
+ mScroller->goToBottom();
+ }
+
+ // do this first after reshape, because other things depend on
+ // up-to-date mVisibleTextRect
+ updateRects();
+
+ needsReflow();
+ }
+}
+
+void LLTextBase::draw()
+{
+ // reflow if needed, on demand
+ reflow();
+
+ // then update scroll position, as cursor may have moved
+ if (!mReadOnly)
+ {
+ updateScrollFromCursor();
+ }
+
+ LLRect doc_rect;
+ if (mScroller)
+ {
+ mScroller->localRectToOtherView(mScroller->getContentWindowRect(), &doc_rect, this);
+ }
+ else
+ {
+ doc_rect = getLocalRect();
+ }
+
+ if (mBGVisible)
+ {
+ // clip background rect against extents, if we support scrolling
+ LLLocalClipRect clip(doc_rect, mScroller != NULL);
+
+ LLColor4 bg_color = mReadOnly
+ ? mReadOnlyBgColor.get()
+ : hasFocus()
+ ? mFocusBgColor.get()
+ : mWriteableBgColor.get();
+ gl_rect_2d(mVisibleTextRect, bg_color, TRUE);
+ }
+
+ // draw document view
+ LLUICtrl::draw();
+
+ {
+ // only clip if we support scrolling (mScroller != NULL)
+ LLLocalClipRect clip(doc_rect, mScroller != NULL);
+ drawSelectionBackground();
+ drawText();
+ drawCursor();
+ }
+}
+
+
+//virtual
+void LLTextBase::setColor( const LLColor4& c )
+{
+ mFgColor = c;
+}
+
+//virtual
+void LLTextBase::setReadOnlyColor(const LLColor4 &c)
+{
+ mReadOnlyFgColor = c;
+}
+
+//virtual
+void LLTextBase::handleVisibilityChange( BOOL new_visibility )
+{
+ if(!new_visibility && mPopupMenu)
+ {
+ mPopupMenu->hide();
+ }
+ LLUICtrl::handleVisibilityChange(new_visibility);
+}
+
+//virtual
+void LLTextBase::setValue(const LLSD& value )
+{
+ setText(value.asString());
+}
+
+//virtual
+BOOL LLTextBase::canDeselect() const
+{
+ return hasSelection();
+}
+
+
+//virtual
+void LLTextBase::deselect()
+{
+ mSelectionStart = 0;
+ mSelectionEnd = 0;
+ mIsSelecting = FALSE;
+}
+
+
+// Sets the scrollbar from the cursor position
+void LLTextBase::updateScrollFromCursor()
+{
+ // Update scroll position even in read-only mode (when there's no cursor displayed)
+ // because startOfDoc()/endOfDoc() modify cursor position. See EXT-736.
+
+ if (!mScrollNeeded || !mScroller)
+ {
+ return;
+ }
+ mScrollNeeded = FALSE;
+
+ // scroll so that the cursor is at the top of the page
+ LLRect scroller_doc_window = getVisibleDocumentRect();
+ LLRect cursor_rect_doc = getLocalRectFromDocIndex(mCursorPos);
+ cursor_rect_doc.translate(scroller_doc_window.mLeft, scroller_doc_window.mBottom);
+ mScroller->scrollToShowRect(cursor_rect_doc, LLRect(0, scroller_doc_window.getHeight() - 5, scroller_doc_window.getWidth(), 5));
+}
+
+S32 LLTextBase::getLeftOffset(S32 width)
+{
+ switch (mHAlign)
+ {
+ case LLFontGL::LEFT:
+ return mHPad;
+ case LLFontGL::HCENTER:
+ return mHPad + llmax(0, (mVisibleTextRect.getWidth() - width - mHPad) / 2);
+ case LLFontGL::RIGHT:
+ return mVisibleTextRect.getWidth() - width;
+ default:
+ return mHPad;
+ }
+}
+
+
+static LLFastTimer::DeclareTimer FTM_TEXT_REFLOW ("Text Reflow");
+void LLTextBase::reflow()
+{
+ LLFastTimer ft(FTM_TEXT_REFLOW);
+
+ updateSegments();
+
+ if (mReflowIndex == S32_MAX)
+ {
+ return;
+ }
+
+ bool scrolled_to_bottom = mScroller ? mScroller->isAtBottom() : false;
+
+ LLRect cursor_rect = getLocalRectFromDocIndex(mCursorPos);
+ bool follow_selection = getLocalRect().overlaps(cursor_rect); // cursor is (potentially) visible
+
+ // store in top-left relative coordinates to avoid issues with horizontal scrollbar appearing and disappearing
+ cursor_rect.mTop = mVisibleTextRect.mTop - cursor_rect.mTop;
+ cursor_rect.mBottom = mVisibleTextRect.mTop - cursor_rect.mBottom;
+
+ S32 first_line = getFirstVisibleLine();
+
+ // if scroll anchor not on first line, update it to first character of first line
+ if (!mLineInfoList.empty()
+ && (mScrollIndex < mLineInfoList[first_line].mDocIndexStart
+ || mScrollIndex >= mLineInfoList[first_line].mDocIndexEnd))
+ {
+ mScrollIndex = mLineInfoList[first_line].mDocIndexStart;
+ }
+ LLRect first_char_rect = getLocalRectFromDocIndex(mScrollIndex);
+ // store in top-left relative coordinates to avoid issues with horizontal scrollbar appearing and disappearing
+ first_char_rect.mTop = mVisibleTextRect.mTop - first_char_rect.mTop;
+ first_char_rect.mBottom = mVisibleTextRect.mTop - first_char_rect.mBottom;
+
+ S32 reflow_count = 0;
+ while(mReflowIndex < S32_MAX)
+ {
+ // we can get into an infinite loop if the document height does not monotonically increase
+ // with decreasing width (embedded ui elements with alternate layouts). In that case,
+ // we want to stop reflowing after 2 iterations. We use 2, since we need to handle the case
+ // of introducing a vertical scrollbar causing a reflow with less width. We should also always
+ // use an even number of iterations to avoid user visible oscillation of the layout
+ if(++reflow_count > 2)
+ {
+ lldebugs << "Breaking out of reflow due to possible infinite loop in " << getName() << llendl;
+ break;
+ }
+
+ S32 start_index = mReflowIndex;
+ mReflowIndex = S32_MAX;
+
+ // shrink document to minimum size (visible portion of text widget)
+ // to force inlined widgets with follows set to shrink
+ mDocumentView->reshape(mVisibleTextRect.getWidth(), mDocumentView->getRect().getHeight());
+
+ S32 cur_top = 0;
+
+ segment_set_t::iterator seg_iter = mSegments.begin();
+ S32 seg_offset = 0;
+ S32 line_start_index = 0;
+ const S32 text_available_width = mVisibleTextRect.getWidth() - mHPad; // reserve room for margin
+ S32 remaining_pixels = text_available_width;
+ S32 line_count = 0;
+
+ // find and erase line info structs starting at start_index and going to end of document
+ if (!mLineInfoList.empty())
+ {
+ // find first element whose end comes after start_index
+ line_list_t::iterator iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), start_index, line_end_compare());
+ line_start_index = iter->mDocIndexStart;
+ line_count = iter->mLineNum;
+ cur_top = iter->mRect.mTop;
+ getSegmentAndOffset(iter->mDocIndexStart, &seg_iter, &seg_offset);
+ mLineInfoList.erase(iter, mLineInfoList.end());
+ }
+
+ S32 line_height = 0;
+
+ while(seg_iter != mSegments.end())
+ {
+ LLTextSegmentPtr segment = *seg_iter;
+
+ // track maximum height of any segment on this line
+ S32 cur_index = segment->getStart() + seg_offset;
+
+ // ask segment how many character fit in remaining space
+ S32 character_count = segment->getNumChars(getWordWrap() ? llmax(0, remaining_pixels) : S32_MAX,
+ seg_offset,
+ cur_index - line_start_index,
+ S32_MAX);
+
+ S32 segment_width, segment_height;
+ bool force_newline = segment->getDimensions(seg_offset, character_count, segment_width, segment_height);
+ // grow line height as necessary based on reported height of this segment
+ line_height = llmax(line_height, segment_height);
+ remaining_pixels -= segment_width;
+
+ seg_offset += character_count;
+
+ S32 last_segment_char_on_line = segment->getStart() + seg_offset;
+
+ S32 text_actual_width = text_available_width - remaining_pixels;
+ S32 text_left = getLeftOffset(text_actual_width);
+ LLRect line_rect(text_left,
+ cur_top,
+ text_left + text_actual_width,
+ cur_top - line_height);
+
+ // if we didn't finish the current segment...
+ if (last_segment_char_on_line < segment->getEnd())
+ {
+ // add line info and keep going
+ mLineInfoList.push_back(line_info(
+ line_start_index,
+ last_segment_char_on_line,
+ line_rect,
+ line_count));
+
+ line_start_index = segment->getStart() + seg_offset;
+ cur_top -= llround((F32)line_height * mLineSpacingMult) + mLineSpacingPixels;
+ remaining_pixels = text_available_width;
+ line_height = 0;
+ }
+ // ...just consumed last segment..
+ else if (++segment_set_t::iterator(seg_iter) == mSegments.end())
+ {
+ mLineInfoList.push_back(line_info(
+ line_start_index,
+ last_segment_char_on_line,
+ line_rect,
+ line_count));
+ cur_top -= llround((F32)line_height * mLineSpacingMult) + mLineSpacingPixels;
+ break;
+ }
+ // ...or finished a segment and there are segments remaining on this line
+ else
+ {
+ // subtract pixels used and increment segment
+ if (force_newline)
+ {
+ mLineInfoList.push_back(line_info(
+ line_start_index,
+ last_segment_char_on_line,
+ line_rect,
+ line_count));
+ line_start_index = segment->getStart() + seg_offset;
+ cur_top -= llround((F32)line_height * mLineSpacingMult) + mLineSpacingPixels;
+ line_height = 0;
+ remaining_pixels = text_available_width;
+ }
+ ++seg_iter;
+ seg_offset = 0;
+ }
+ if (force_newline)
+ {
+ line_count++;
+ }
+ }
+
+ // calculate visible region for diplaying text
+ updateRects();
+
+ for (segment_set_t::iterator segment_it = mSegments.begin();
+ segment_it != mSegments.end();
+ ++segment_it)
+ {
+ LLTextSegmentPtr segmentp = *segment_it;
+ segmentp->updateLayout(*this);
+
+ }
+ }
+
+ // apply scroll constraints after reflowing text
+ if (!hasMouseCapture() && mScroller)
+ {
+ if (scrolled_to_bottom && mTrackEnd)
+ {
+ // keep bottom of text buffer visible
+ endOfDoc();
+ }
+ else if (hasSelection() && follow_selection)
+ {
+ // keep cursor in same vertical position on screen when selecting text
+ LLRect new_cursor_rect_doc = getDocRectFromDocIndex(mCursorPos);
+ LLRect old_cursor_rect = cursor_rect;
+ old_cursor_rect.mTop = mVisibleTextRect.mTop - cursor_rect.mTop;
+ old_cursor_rect.mBottom = mVisibleTextRect.mTop - cursor_rect.mBottom;
+
+ mScroller->scrollToShowRect(new_cursor_rect_doc, old_cursor_rect);
+ }
+ else
+ {
+ // keep first line of text visible
+ LLRect new_first_char_rect = getDocRectFromDocIndex(mScrollIndex);
+
+ // pass in desired rect in the coordinate frame of the document viewport
+ LLRect old_first_char_rect = first_char_rect;
+ old_first_char_rect.mTop = mVisibleTextRect.mTop - first_char_rect.mTop;
+ old_first_char_rect.mBottom = mVisibleTextRect.mTop - first_char_rect.mBottom;
+
+ mScroller->scrollToShowRect(new_first_char_rect, old_first_char_rect);
+ }
+ }
+
+ // reset desired x cursor position
+ updateCursorXPos();
+ }
+
+LLRect LLTextBase::getTextBoundingRect()
+{
+ reflow();
+ return mTextBoundingRect;
+}
+
+
+void LLTextBase::clearSegments()
+{
+ mSegments.clear();
+ createDefaultSegment();
+}
+
+S32 LLTextBase::getLineStart( S32 line ) const
+{
+ S32 num_lines = getLineCount();
+ if (num_lines == 0)
+ {
+ return 0;
+ }
+
+ line = llclamp(line, 0, num_lines-1);
+ return mLineInfoList[line].mDocIndexStart;
+}
+
+S32 LLTextBase::getLineEnd( S32 line ) const
+{
+ S32 num_lines = getLineCount();
+ if (num_lines == 0)
+ {
+ return 0;
+ }
+
+ line = llclamp(line, 0, num_lines-1);
+ return mLineInfoList[line].mDocIndexEnd;
+}
+
+
+
+S32 LLTextBase::getLineNumFromDocIndex( S32 doc_index, bool include_wordwrap) const
+{
+ if (mLineInfoList.empty())
+ {
+ return 0;
+ }
+ else
+ {
+ line_list_t::const_iterator iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), doc_index, line_end_compare());
+ if (include_wordwrap)
+ {
+ return iter - mLineInfoList.begin();
+ }
+ else
+ {
+ if (iter == mLineInfoList.end())
+ {
+ return mLineInfoList.back().mLineNum;
+ }
+ else
+ {
+ return iter->mLineNum;
+ }
+ }
+ }
+}
+
+// Given an offset into text (pos), find the corresponding line (from the start of the doc) and an offset into the line.
+S32 LLTextBase::getLineOffsetFromDocIndex( S32 startpos, bool include_wordwrap) const
+{
+ if (mLineInfoList.empty())
+ {
+ return startpos;
+ }
+ else
+ {
+ line_list_t::const_iterator iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), startpos, line_end_compare());
+ return startpos - iter->mDocIndexStart;
+ }
+}
+
+S32 LLTextBase::getFirstVisibleLine() const
+{
+ LLRect visible_region = getVisibleDocumentRect();
+
+ // binary search for line that starts before top of visible buffer
+ line_list_t::const_iterator iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mTop, compare_bottom());
+
+ return iter - mLineInfoList.begin();
+}
+
+std::pair<S32, S32> LLTextBase::getVisibleLines(bool fully_visible)
+{
+ LLRect visible_region = getVisibleDocumentRect();
+ line_list_t::const_iterator first_iter;
+ line_list_t::const_iterator last_iter;
+
+ // make sure we have an up-to-date mLineInfoList
+ reflow();
+
+ if (fully_visible)
+ {
+ first_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mTop, compare_top());
+ last_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mBottom, compare_bottom());
+ }
+ else
+ {
+ first_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mTop, compare_bottom());
+ last_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mBottom, compare_top());
+ }
+ return std::pair<S32, S32>(first_iter - mLineInfoList.begin(), last_iter - mLineInfoList.begin());
+}
+
+
+
+LLTextViewModel* LLTextBase::getViewModel() const
+{
+ return (LLTextViewModel*)mViewModel.get();
+}
+
+void LLTextBase::addDocumentChild(LLView* view)
+{
+ mDocumentView->addChild(view);
+}
+
+void LLTextBase::removeDocumentChild(LLView* view)
+{
+ mDocumentView->removeChild(view);
+}
+
+
+static LLFastTimer::DeclareTimer FTM_UPDATE_TEXT_SEGMENTS("Update Text Segments");
+void LLTextBase::updateSegments()
+{
+ LLFastTimer ft(FTM_UPDATE_TEXT_SEGMENTS);
+ createDefaultSegment();
+}
+
+void LLTextBase::getSegmentAndOffset( S32 startpos, segment_set_t::const_iterator* seg_iter, S32* offsetp ) const
+{
+ *seg_iter = getSegIterContaining(startpos);
+ if (*seg_iter == mSegments.end())
+ {
+ *offsetp = 0;
+ }
+ else
+ {
+ *offsetp = startpos - (**seg_iter)->getStart();
+ }
+}
+
+void LLTextBase::getSegmentAndOffset( S32 startpos, segment_set_t::iterator* seg_iter, S32* offsetp )
+{
+ *seg_iter = getSegIterContaining(startpos);
+ if (*seg_iter == mSegments.end())
+ {
+ *offsetp = 0;
+ }
+ else
+ {
+ *offsetp = startpos - (**seg_iter)->getStart();
+ }
+}
+
+LLTextBase::segment_set_t::iterator LLTextBase::getSegIterContaining(S32 index)
+{
+ segment_set_t::iterator it = mSegments.upper_bound(new LLIndexSegment(index));
+ return it;
+}
+
+LLTextBase::segment_set_t::const_iterator LLTextBase::getSegIterContaining(S32 index) const
+{
+ LLTextBase::segment_set_t::const_iterator it = mSegments.upper_bound(new LLIndexSegment(index));
+ return it;
+}
+
+// Finds the text segment (if any) at the give local screen position
+LLTextSegmentPtr LLTextBase::getSegmentAtLocalPos( S32 x, S32 y, bool hit_past_end_of_line)
+{
+ // Find the cursor position at the requested local screen position
+ S32 offset = getDocIndexFromLocalCoord( x, y, FALSE, hit_past_end_of_line);
+ segment_set_t::iterator seg_iter = getSegIterContaining(offset);
+ if (seg_iter != mSegments.end())
+ {
+ return *seg_iter;
+ }
+ else
+ {
+ return LLTextSegmentPtr();
+ }
+}
+
+void LLTextBase::createUrlContextMenu(S32 x, S32 y, const std::string &in_url)
+{
+ // work out the XUI menu file to use for this url
+ LLUrlMatch match;
+ std::string url = in_url;
+ if (! LLUrlRegistry::instance().findUrl(url, match))
+ {
+ return;
+ }
+
+ std::string xui_file = match.getMenuName();
+ if (xui_file.empty())
+ {
+ return;
+ }
+
+ // set up the callbacks for all of the potential menu items, N.B. we
+ // don't use const ref strings in callbacks in case url goes out of scope
+ LLUICtrl::CommitCallbackRegistry::ScopedRegistrar registrar;
+ registrar.add("Url.Open", boost::bind(&LLUrlAction::openURL, url));
+ registrar.add("Url.OpenInternal", boost::bind(&LLUrlAction::openURLInternal, url));
+ registrar.add("Url.OpenExternal", boost::bind(&LLUrlAction::openURLExternal, url));
+ registrar.add("Url.Execute", boost::bind(&LLUrlAction::executeSLURL, url));
+ registrar.add("Url.Teleport", boost::bind(&LLUrlAction::teleportToLocation, url));
+ registrar.add("Url.ShowProfile", boost::bind(&LLUrlAction::showProfile, url));
+ registrar.add("Url.ShowOnMap", boost::bind(&LLUrlAction::showLocationOnMap, url));
+ registrar.add("Url.CopyLabel", boost::bind(&LLUrlAction::copyLabelToClipboard, url));
+ registrar.add("Url.CopyUrl", boost::bind(&LLUrlAction::copyURLToClipboard, url));
+
+ // create and return the context menu from the XUI file
+ delete mPopupMenu;
+ mPopupMenu = LLUICtrlFactory::getInstance()->createFromFile<LLContextMenu>(xui_file, LLMenuGL::sMenuContainer,
+ LLMenuHolderGL::child_registry_t::instance());
+ if (mPopupMenu)
+ {
+ mPopupMenu->show(x, y);
+ LLMenuGL::showPopup(this, mPopupMenu, x, y);
+ }
+}
+
+void LLTextBase::setText(const LLStringExplicit &utf8str, const LLStyle::Params& input_params)
+{
+ // clear out the existing text and segments
+ getViewModel()->setDisplay(LLWStringUtil::null);
+
+ clearSegments();
+// createDefaultSegment();
+
+ deselect();
+
+ // append the new text (supports Url linking)
+ std::string text(utf8str);
+ LLStringUtil::removeCRLF(text);
+
+ // appendText modifies mCursorPos...
+ appendText(text, false, input_params);
+ // ...so move cursor to top after appending text
+ startOfDoc();
+
+ onValueChange(0, getLength());
+}
+
+//virtual
+std::string LLTextBase::getText() const
+{
+ return getViewModel()->getValue().asString();
+}
+
+// IDEVO - icons can be UI image names or UUID sent from
+// server with avatar display name
+static LLUIImagePtr image_from_icon_name(const std::string& icon_name)
+{
+ if (LLUUID::validate(icon_name))
+ {
+ return LLUI::getUIImageByID( LLUUID(icon_name) );
+ }
+ else
+ {
+ return LLUI::getUIImage(icon_name);
+ }
+}
+
+void LLTextBase::appendTextImpl(const std::string &new_text, const LLStyle::Params& input_params)
+{
+ LLStyle::Params style_params(input_params);
+ style_params.fillFrom(getDefaultStyleParams());
+
+ S32 part = (S32)LLTextParser::WHOLE;
+ if(mParseHTML)
+ {
+ S32 start=0,end=0;
+ LLUrlMatch match;
+ std::string text = new_text;
+ while ( LLUrlRegistry::instance().findUrl(text, match,
+ boost::bind(&LLTextBase::replaceUrl, this, _1, _2, _3)) )
+ {
+
+ LLTextUtil::processUrlMatch(&match,this);
+
+ start = match.getStart();
+ end = match.getEnd()+1;
+
+ LLStyle::Params link_params(style_params);
+ link_params.overwriteFrom(match.getStyle());
+
+ // output the text before the Url
+ if (start > 0)
+ {
+ if (part == (S32)LLTextParser::WHOLE ||
+ part == (S32)LLTextParser::START)
+ {
+ part = (S32)LLTextParser::START;
+ }
+ else
+ {
+ part = (S32)LLTextParser::MIDDLE;
+ }
+ std::string subtext=text.substr(0,start);
+ appendAndHighlightText(subtext, part, style_params);
+ }
+
+ // output the styled Url
+ appendAndHighlightTextImpl(match.getLabel(), part, link_params);
+
+ // set the tooltip for the Url label
+ if (! match.getTooltip().empty())
+ {
+ segment_set_t::iterator it = getSegIterContaining(getLength()-1);
+ if (it != mSegments.end())
+ {
+ LLTextSegmentPtr segment = *it;
+ segment->setToolTip(match.getTooltip());
+ }
+ }
+
+ // move on to the rest of the text after the Url
+ if (end < (S32)text.length())
+ {
+ text = text.substr(end,text.length() - end);
+ end=0;
+ part=(S32)LLTextParser::END;
+ }
+ else
+ {
+ break;
+ }
+ }
+ if (part != (S32)LLTextParser::WHOLE)
+ part=(S32)LLTextParser::END;
+ if (end < (S32)text.length())
+ appendAndHighlightText(text, part, style_params);
+ }
+ else
+ {
+ appendAndHighlightText(new_text, part, style_params);
+ }
+}
+
+void LLTextBase::appendText(const std::string &new_text, bool prepend_newline, const LLStyle::Params& input_params)
+{
+ if (new_text.empty())
+ return;
+
+ if(prepend_newline)
+ appendLineBreakSegment(input_params);
+ appendTextImpl(new_text,input_params);
+}
+
+void LLTextBase::needsReflow(S32 index)
+{
+ lldebugs << "reflow on object " << (void*)this << " index = " << mReflowIndex << ", new index = " << index << llendl;
+ mReflowIndex = llmin(mReflowIndex, index);
+}
+
+void LLTextBase::appendLineBreakSegment(const LLStyle::Params& style_params)
+{
+ segment_vec_t segments;
+ LLStyleConstSP sp(new LLStyle(style_params));
+ segments.push_back(new LLLineBreakTextSegment(sp, getLength()));
+
+ insertStringNoUndo(getLength(), utf8str_to_wstring("\n"), &segments);
+}
+
+void LLTextBase::appendImageSegment(const LLStyle::Params& style_params)
+{
+ if(getPlainText())
+ {
+ return;
+ }
+ segment_vec_t segments;
+ LLStyleConstSP sp(new LLStyle(style_params));
+ segments.push_back(new LLImageTextSegment(sp, getLength(),*this));
+
+ insertStringNoUndo(getLength(), utf8str_to_wstring(" "), &segments);
+}
+
+void LLTextBase::appendWidget(const LLInlineViewSegment::Params& params, const std::string& text, bool allow_undo)
+{
+ segment_vec_t segments;
+ LLWString widget_wide_text = utf8str_to_wstring(text);
+ segments.push_back(new LLInlineViewSegment(params, getLength(), getLength() + widget_wide_text.size()));
+
+ insertStringNoUndo(getLength(), widget_wide_text, &segments);
+}
+
+void LLTextBase::appendAndHighlightTextImpl(const std::string &new_text, S32 highlight_part, const LLStyle::Params& style_params)
+{
+ // Save old state
+ S32 selection_start = mSelectionStart;
+ S32 selection_end = mSelectionEnd;
+ BOOL was_selecting = mIsSelecting;
+ S32 cursor_pos = mCursorPos;
+ S32 old_length = getLength();
+ BOOL cursor_was_at_end = (mCursorPos == old_length);
+
+ deselect();
+
+ setCursorPos(old_length);
+
+ if (mParseHighlights)
+ {
+ LLStyle::Params highlight_params(style_params);
+
+ LLSD pieces = LLTextParser::instance().parsePartialLineHighlights(new_text, highlight_params.color(), (LLTextParser::EHighlightPosition)highlight_part);
+ for (S32 i = 0; i < pieces.size(); i++)
+ {
+ LLSD color_llsd = pieces[i]["color"];
+ LLColor4 lcolor;
+ lcolor.setValue(color_llsd);
+ highlight_params.color = lcolor;
+
+ LLWString wide_text;
+ wide_text = utf8str_to_wstring(pieces[i]["text"].asString());
+
+ S32 cur_length = getLength();
+ LLStyleConstSP sp(new LLStyle(highlight_params));
+ LLTextSegmentPtr segmentp = new LLNormalTextSegment(sp, cur_length, cur_length + wide_text.size(), *this);
+ segment_vec_t segments;
+ segments.push_back(segmentp);
+ insertStringNoUndo(cur_length, wide_text, &segments);
+ }
+ }
+ else
+ {
+ LLWString wide_text;
+ wide_text = utf8str_to_wstring(new_text);
+
+ segment_vec_t segments;
+ S32 segment_start = old_length;
+ S32 segment_end = old_length + wide_text.size();
+ LLStyleConstSP sp(new LLStyle(style_params));
+ segments.push_back(new LLNormalTextSegment(sp, segment_start, segment_end, *this ));
+
+ insertStringNoUndo(getLength(), wide_text, &segments);
+ }
+
+ // Set the cursor and scroll position
+ if( selection_start != selection_end )
+ {
+ mSelectionStart = selection_start;
+ mSelectionEnd = selection_end;
+
+ mIsSelecting = was_selecting;
+ setCursorPos(cursor_pos);
+ }
+ else if( cursor_was_at_end )
+ {
+ setCursorPos(getLength());
+ }
+ else
+ {
+ setCursorPos(cursor_pos);
+ }
+}
+
+void LLTextBase::appendAndHighlightText(const std::string &new_text, S32 highlight_part, const LLStyle::Params& style_params)
+{
+ if (new_text.empty()) return;
+
+ std::string::size_type start = 0;
+ std::string::size_type pos = new_text.find("\n",start);
+
+ while(pos!=-1)
+ {
+ if(pos!=start)
+ {
+ std::string str = std::string(new_text,start,pos-start);
+ appendAndHighlightTextImpl(str,highlight_part, style_params);
+ }
+ appendLineBreakSegment(style_params);
+ start = pos+1;
+ pos = new_text.find("\n",start);
+ }
+
+ std::string str = std::string(new_text,start,new_text.length()-start);
+ appendAndHighlightTextImpl(str,highlight_part, style_params);
+}
+
+
+void LLTextBase::replaceUrl(const std::string &url,
+ const std::string &label,
+ const std::string &icon)
+{
+ // get the full (wide) text for the editor so we can change it
+ LLWString text = getWText();
+ LLWString wlabel = utf8str_to_wstring(label);
+ bool modified = false;
+ S32 seg_start = 0;
+
+ // iterate through each segment looking for ones styled as links
+ segment_set_t::iterator it;
+ for (it = mSegments.begin(); it != mSegments.end(); ++it)
+ {
+ LLTextSegment *seg = *it;
+ LLStyleConstSP style = seg->getStyle();
+
+ // update segment start/end length in case we replaced text earlier
+ S32 seg_length = seg->getEnd() - seg->getStart();
+ seg->setStart(seg_start);
+ seg->setEnd(seg_start + seg_length);
+
+ // if we find a link with our Url, then replace the label
+ if (style->getLinkHREF() == url)
+ {
+ S32 start = seg->getStart();
+ S32 end = seg->getEnd();
+ text = text.substr(0, start) + wlabel + text.substr(end, text.size() - end + 1);
+ seg->setEnd(start + wlabel.size());
+ modified = true;
+ }
+
+ // Icon might be updated when more avatar or group info
+ // becomes available
+ if (style->isImage() && style->getLinkHREF() == url)
+ {
+ LLUIImagePtr image = image_from_icon_name( icon );
+ if (image)
+ {
+ LLStyle::Params icon_params;
+ icon_params.image = image;
+ LLStyleConstSP new_style(new LLStyle(icon_params));
+ seg->setStyle(new_style);
+ modified = true;
+ }
+ }
+
+ // work out the character offset for the next segment
+ seg_start = seg->getEnd();
+ }
+
+ // update the editor with the new (wide) text string
+ if (modified)
+ {
+ getViewModel()->setDisplay(text);
+ deselect();
+ setCursorPos(mCursorPos);
+ needsReflow();
+ }
+}
+
+
+void LLTextBase::setWText(const LLWString& text)
+{
+ setText(wstring_to_utf8str(text));
+}
+
+const LLWString& LLTextBase::getWText() const
+{
+ return getViewModel()->getDisplay();
+}
+
+// If round is true, if the position is on the right half of a character, the cursor
+// will be put to its right. If round is false, the cursor will always be put to the
+// character's left.
+
+S32 LLTextBase::getDocIndexFromLocalCoord( S32 local_x, S32 local_y, BOOL round, bool hit_past_end_of_line) const
+{
+ // Figure out which line we're nearest to.
+ LLRect visible_region = getVisibleDocumentRect();
+
+ // binary search for line that starts before local_y
+ line_list_t::const_iterator line_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), local_y - mVisibleTextRect.mBottom + visible_region.mBottom, compare_bottom());
+
+ if (line_iter == mLineInfoList.end())
+ {
+ return getLength(); // past the end
+ }
+
+ S32 pos = getLength();
+ S32 start_x = mVisibleTextRect.mLeft + line_iter->mRect.mLeft - visible_region.mLeft;
+
+ segment_set_t::iterator line_seg_iter;
+ S32 line_seg_offset;
+ for(getSegmentAndOffset(line_iter->mDocIndexStart, &line_seg_iter, &line_seg_offset);
+ line_seg_iter != mSegments.end();
+ ++line_seg_iter, line_seg_offset = 0)
+ {
+ const LLTextSegmentPtr segmentp = *line_seg_iter;
+
+ S32 segment_line_start = segmentp->getStart() + line_seg_offset;
+ S32 segment_line_length = llmin(segmentp->getEnd(), line_iter->mDocIndexEnd) - segment_line_start;
+ S32 text_width, text_height;
+ bool newline = segmentp->getDimensions(line_seg_offset, segment_line_length, text_width, text_height);
+
+ if(newline)
+ {
+ pos = segment_line_start + segmentp->getOffset(local_x - start_x, line_seg_offset, segment_line_length, round);
+ break;
+ }
+
+ // if we've reached a line of text *below* the mouse cursor, doc index is first character on that line
+ if (hit_past_end_of_line && local_y - mVisibleTextRect.mBottom + visible_region.mBottom > line_iter->mRect.mTop)
+ {
+ pos = segment_line_start;
+ break;
+ }
+ if (local_x < start_x + text_width) // cursor to left of right edge of text
+ {
+ // Figure out which character we're nearest to.
+ S32 offset;
+ if (!segmentp->canEdit())
+ {
+ S32 segment_width, segment_height;
+ segmentp->getDimensions(0, segmentp->getEnd() - segmentp->getStart(), segment_width, segment_height);
+ if (round && local_x - start_x > segment_width / 2)
+ {
+ offset = segment_line_length;
+ }
+ else
+ {
+ offset = 0;
+ }
+ }
+ else
+ {
+ offset = segmentp->getOffset(local_x - start_x, line_seg_offset, segment_line_length, round);
+ }
+ pos = segment_line_start + offset;
+ break;
+ }
+ else if (hit_past_end_of_line && segmentp->getEnd() > line_iter->mDocIndexEnd - 1)
+ {
+ // segment wraps to next line, so just set doc pos to the end of the line
+ // segment wraps to next line, so just set doc pos to start of next line (represented by mDocIndexEnd)
+ pos = llmin(getLength(), line_iter->mDocIndexEnd);
+ break;
+ }
+ start_x += text_width;
+ }
+
+ return pos;
+}
+
+// returns rectangle of insertion caret
+// in document coordinate frame from given index into text
+LLRect LLTextBase::getDocRectFromDocIndex(S32 pos) const
+{
+ if (mLineInfoList.empty())
+ {
+ return LLRect();
+ }
+
+ LLRect doc_rect;
+
+ // clamp pos to valid values
+ pos = llclamp(pos, 0, mLineInfoList.back().mDocIndexEnd - 1);
+
+ // find line that contains cursor
+ line_list_t::const_iterator line_iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), pos, line_end_compare());
+
+ doc_rect.mLeft = line_iter->mRect.mLeft;
+ doc_rect.mBottom = line_iter->mRect.mBottom;
+ doc_rect.mTop = line_iter->mRect.mTop;
+
+ segment_set_t::iterator line_seg_iter;
+ S32 line_seg_offset;
+ segment_set_t::iterator cursor_seg_iter;
+ S32 cursor_seg_offset;
+ getSegmentAndOffset(line_iter->mDocIndexStart, &line_seg_iter, &line_seg_offset);
+ getSegmentAndOffset(pos, &cursor_seg_iter, &cursor_seg_offset);
+
+ while(line_seg_iter != mSegments.end())
+ {
+ const LLTextSegmentPtr segmentp = *line_seg_iter;
+
+ if (line_seg_iter == cursor_seg_iter)
+ {
+ // cursor advanced to right based on difference in offset of cursor to start of line
+ S32 segment_width, segment_height;
+ segmentp->getDimensions(line_seg_offset, cursor_seg_offset - line_seg_offset, segment_width, segment_height);
+ doc_rect.mLeft += segment_width;
+
+ break;
+ }
+ else
+ {
+ // add remainder of current text segment to cursor position
+ S32 segment_width, segment_height;
+ segmentp->getDimensions(line_seg_offset, (segmentp->getEnd() - segmentp->getStart()) - line_seg_offset, segment_width, segment_height);
+ doc_rect.mLeft += segment_width;
+ // offset will be 0 for all segments after the first
+ line_seg_offset = 0;
+ // go to next text segment on this line
+ ++line_seg_iter;
+ }
+ }
+
+ // set rect to 0 width
+ doc_rect.mRight = doc_rect.mLeft;
+
+ return doc_rect;
+}
+
+LLRect LLTextBase::getLocalRectFromDocIndex(S32 pos) const
+{
+ LLRect content_window_rect = mScroller ? mScroller->getContentWindowRect() : getLocalRect();
+ if (mBorderVisible)
+ {
+ content_window_rect.stretch(-1);
+ }
+
+ LLRect local_rect;
+
+ if (mLineInfoList.empty())
+ {
+ // return default height rect in upper left
+ local_rect = content_window_rect;
+ local_rect.mBottom = local_rect.mTop - (S32)(mDefaultFont->getLineHeight());
+ return local_rect;
+ }
+
+ // get the rect in document coordinates
+ LLRect doc_rect = getDocRectFromDocIndex(pos);
+
+ // compensate for scrolled, inset view of doc
+ LLRect scrolled_view_rect = getVisibleDocumentRect();
+ local_rect = doc_rect;
+ local_rect.translate(content_window_rect.mLeft - scrolled_view_rect.mLeft,
+ content_window_rect.mBottom - scrolled_view_rect.mBottom);
+
+ return local_rect;
+}
+
+void LLTextBase::updateCursorXPos()
+{
+ // reset desired x cursor position
+ mDesiredXPixel = getLocalRectFromDocIndex(mCursorPos).mLeft;
+}
+
+
+void LLTextBase::startOfLine()
+{
+ S32 offset = getLineOffsetFromDocIndex(mCursorPos);
+ setCursorPos(mCursorPos - offset);
+}
+
+void LLTextBase::endOfLine()
+{
+ S32 line = getLineNumFromDocIndex(mCursorPos);
+ S32 num_lines = getLineCount();
+ if (line + 1 >= num_lines)
+ {
+ setCursorPos(getLength());
+ }
+ else
+ {
+ setCursorPos( getLineStart(line + 1) - 1 );
+ }
+}
+
+void LLTextBase::startOfDoc()
+{
+ setCursorPos(0);
+ if (mScroller)
+ {
+ mScroller->goToTop();
+ }
+}
+
+void LLTextBase::endOfDoc()
+{
+ setCursorPos(getLength());
+ if (mScroller)
+ {
+ mScroller->goToBottom();
+ }
+}
+
+void LLTextBase::changePage( S32 delta )
+{
+ const S32 PIXEL_OVERLAP_ON_PAGE_CHANGE = 10;
+ if (delta == 0 || !mScroller) return;
+
+ LLRect cursor_rect = getLocalRectFromDocIndex(mCursorPos);
+
+ if( delta == -1 )
+ {
+ mScroller->pageUp(PIXEL_OVERLAP_ON_PAGE_CHANGE);
+ }
+ else
+ if( delta == 1 )
+ {
+ mScroller->pageDown(PIXEL_OVERLAP_ON_PAGE_CHANGE);
+ }
+
+ if (getLocalRectFromDocIndex(mCursorPos) == cursor_rect)
+ {
+ // cursor didn't change apparent position, so move to top or bottom of document, respectively
+ if (delta < 0)
+ {
+ startOfDoc();
+ }
+ else
+ {
+ endOfDoc();
+ }
+ }
+ else
+ {
+ setCursorAtLocalPos(cursor_rect.getCenterX(), cursor_rect.getCenterY(), true, false);
+ }
+}
+
+// Picks a new cursor position based on the screen size of text being drawn.
+void LLTextBase::setCursorAtLocalPos( S32 local_x, S32 local_y, bool round, bool keep_cursor_offset )
+{
+ setCursorPos(getDocIndexFromLocalCoord(local_x, local_y, round), keep_cursor_offset);
+}
+
+
+void LLTextBase::changeLine( S32 delta )
+{
+ S32 line = getLineNumFromDocIndex(mCursorPos);
+
+ S32 new_line = line;
+ if( (delta < 0) && (line > 0 ) )
+ {
+ new_line = line - 1;
+ }
+ else if( (delta > 0) && (line < (getLineCount() - 1)) )
+ {
+ new_line = line + 1;
+ }
+
+ LLRect visible_region = getVisibleDocumentRect();
+
+ S32 new_cursor_pos = getDocIndexFromLocalCoord(mDesiredXPixel, mLineInfoList[new_line].mRect.mBottom + mVisibleTextRect.mBottom - visible_region.mBottom, TRUE);
+ setCursorPos(new_cursor_pos, true);
+}
+
+bool LLTextBase::scrolledToStart()
+{
+ return mScroller->isAtTop();
+}
+
+bool LLTextBase::scrolledToEnd()
+{
+ return mScroller->isAtBottom();
+}
+
+
+bool LLTextBase::setCursor(S32 row, S32 column)
+{
+ if (0 <= row && row < (S32)mLineInfoList.size())
+ {
+ S32 doc_pos = mLineInfoList[row].mDocIndexStart;
+ column = llclamp(column, 0, mLineInfoList[row].mDocIndexEnd - mLineInfoList[row].mDocIndexStart - 1);
+ doc_pos += column;
+ updateCursorXPos();
+
+ return setCursorPos(doc_pos);
+ }
+ return false;
+}
+
+
+bool LLTextBase::setCursorPos(S32 cursor_pos, bool keep_cursor_offset)
+{
+ S32 new_cursor_pos = cursor_pos;
+ if (new_cursor_pos != mCursorPos)
+ {
+ new_cursor_pos = getEditableIndex(new_cursor_pos, new_cursor_pos >= mCursorPos);
+ }
+
+ mCursorPos = llclamp(new_cursor_pos, 0, (S32)getLength());
+ needsScroll();
+ if (!keep_cursor_offset)
+ updateCursorXPos();
+ // did we get requested position?
+ return new_cursor_pos == cursor_pos;
+}
+
+// constraint cursor to editable segments of document
+S32 LLTextBase::getEditableIndex(S32 index, bool increasing_direction)
+{
+ segment_set_t::iterator segment_iter;
+ S32 offset;
+ getSegmentAndOffset(index, &segment_iter, &offset);
+ if (segment_iter == mSegments.end())
+ {
+ return 0;
+ }
+
+ LLTextSegmentPtr segmentp = *segment_iter;
+
+ if (segmentp->canEdit())
+ {
+ return segmentp->getStart() + offset;
+ }
+ else if (segmentp->getStart() < index && index < segmentp->getEnd())
+ {
+ // bias towards document end
+ if (increasing_direction)
+ {
+ return segmentp->getEnd();
+ }
+ // bias towards document start
+ else
+ {
+ return segmentp->getStart();
+ }
+ }
+ else
+ {
+ return index;
+ }
+}
+
+void LLTextBase::updateRects()
+{
+ if (mLineInfoList.empty())
+ {
+ mTextBoundingRect = LLRect(0, mVPad, mHPad, 0);
+ }
+ else
+ {
+ mTextBoundingRect = mLineInfoList.begin()->mRect;
+ for (line_list_t::const_iterator line_iter = ++mLineInfoList.begin();
+ line_iter != mLineInfoList.end();
+ ++line_iter)
+ {
+ mTextBoundingRect.unionWith(line_iter->mRect);
+ }
+
+ mTextBoundingRect.mTop += mVPad;
+ // subtract a pixel off the bottom to deal with rounding errors in measuring font height
+ mTextBoundingRect.mBottom -= 1;
+
+ S32 delta_pos = -mTextBoundingRect.mBottom;
+ // move line segments to fit new document rect
+ for (line_list_t::iterator it = mLineInfoList.begin(); it != mLineInfoList.end(); ++it)
+ {
+ it->mRect.translate(0, delta_pos);
+ }
+ mTextBoundingRect.translate(0, delta_pos);
+ }
+
+ // update document container dimensions according to text contents
+ LLRect doc_rect = mTextBoundingRect;
+ // use old mVisibleTextRect constraint document to width of viewable region
+ doc_rect.mLeft = 0;
+
+ // allow horizontal scrolling?
+ // if so, use entire width of text contents
+ // otherwise, stop at width of mVisibleTextRect
+ doc_rect.mRight = mScroller
+ ? llmax(mVisibleTextRect.getWidth(), mTextBoundingRect.mRight)
+ : mVisibleTextRect.getWidth();
+
+ mDocumentView->setShape(doc_rect);
+
+ //update mVisibleTextRect *after* mDocumentView has been resized
+ // so that scrollbars are added if document needs to scroll
+ // since mVisibleTextRect does not include scrollbars
+ LLRect old_text_rect = mVisibleTextRect;
+ mVisibleTextRect = mScroller ? mScroller->getContentWindowRect() : getLocalRect();
+ //FIXME: replace border with image?
+ if (mBorderVisible)
+ {
+ mVisibleTextRect.stretch(-1);
+ }
+ if (mVisibleTextRect != old_text_rect)
+ {
+ needsReflow();
+ }
+
+ // update document container again, using new mVisibleTextRect (that has scrollbars enabled as needed)
+ doc_rect.mRight = mScroller
+ ? llmax(mVisibleTextRect.getWidth(), mTextBoundingRect.mRight)
+ : mVisibleTextRect.getWidth();
+ mDocumentView->setShape(doc_rect);
+}
+
+
+void LLTextBase::startSelection()
+{
+ if( !mIsSelecting )
+ {
+ mIsSelecting = TRUE;
+ mSelectionStart = mCursorPos;
+ mSelectionEnd = mCursorPos;
+ }
+}
+
+void LLTextBase::endSelection()
+{
+ if( mIsSelecting )
+ {
+ mIsSelecting = FALSE;
+ mSelectionEnd = mCursorPos;
+ }
+}
+
+// get portion of document that is visible in text editor
+LLRect LLTextBase::getVisibleDocumentRect() const
+{
+ if (mScroller)
+ {
+ return mScroller->getVisibleContentRect();
+ }
+ else
+ {
+ // entire document rect is visible when not scrolling
+ // but offset according to height of widget
+ LLRect doc_rect = mDocumentView->getLocalRect();
+ doc_rect.mLeft -= mDocumentView->getRect().mLeft;
+ // adjust for height of text above widget baseline
+ doc_rect.mBottom = doc_rect.getHeight() - mVisibleTextRect.getHeight();
+ return doc_rect;
+ }
+}
+
+//
+// LLTextSegment
+//
+
+LLTextSegment::~LLTextSegment()
+{}
+
+bool LLTextSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const { width = 0; height = 0; return false;}
+S32 LLTextSegment::getOffset(S32 segment_local_x_coord, S32 start_offset, S32 num_chars, bool round) const { return 0; }
+S32 LLTextSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const { return 0; }
+void LLTextSegment::updateLayout(const LLTextBase& editor) {}
+F32 LLTextSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect) { return draw_rect.mLeft; }
+bool LLTextSegment::canEdit() const { return false; }
+void LLTextSegment::unlinkFromDocument(LLTextBase*) {}
+void LLTextSegment::linkToDocument(LLTextBase*) {}
+const LLColor4& LLTextSegment::getColor() const { return LLColor4::white; }
+//void LLTextSegment::setColor(const LLColor4 &color) {}
+LLStyleConstSP LLTextSegment::getStyle() const {static LLStyleConstSP sp(new LLStyle()); return sp; }
+void LLTextSegment::setStyle(LLStyleConstSP style) {}
+void LLTextSegment::setToken( LLKeywordToken* token ) {}
+LLKeywordToken* LLTextSegment::getToken() const { return NULL; }
+void LLTextSegment::setToolTip( const std::string &msg ) {}
+void LLTextSegment::dump() const {}
+BOOL LLTextSegment::handleMouseDown(S32 x, S32 y, MASK mask) { return FALSE; }
+BOOL LLTextSegment::handleMouseUp(S32 x, S32 y, MASK mask) { return FALSE; }
+BOOL LLTextSegment::handleMiddleMouseDown(S32 x, S32 y, MASK mask) { return FALSE; }
+BOOL LLTextSegment::handleMiddleMouseUp(S32 x, S32 y, MASK mask) { return FALSE; }
+BOOL LLTextSegment::handleRightMouseDown(S32 x, S32 y, MASK mask) { return FALSE; }
+BOOL LLTextSegment::handleRightMouseUp(S32 x, S32 y, MASK mask) { return FALSE; }
+BOOL LLTextSegment::handleDoubleClick(S32 x, S32 y, MASK mask) { return FALSE; }
+BOOL LLTextSegment::handleHover(S32 x, S32 y, MASK mask) { return FALSE; }
+BOOL LLTextSegment::handleScrollWheel(S32 x, S32 y, S32 clicks) { return FALSE; }
+BOOL LLTextSegment::handleToolTip(S32 x, S32 y, MASK mask) { return FALSE; }
+std::string LLTextSegment::getName() const { return ""; }
+void LLTextSegment::onMouseCaptureLost() {}
+void LLTextSegment::screenPointToLocal(S32 screen_x, S32 screen_y, S32* local_x, S32* local_y) const {}
+void LLTextSegment::localPointToScreen(S32 local_x, S32 local_y, S32* screen_x, S32* screen_y) const {}
+BOOL LLTextSegment::hasMouseCapture() { return FALSE; }
+
+//
+// LLNormalTextSegment
+//
+
+LLNormalTextSegment::LLNormalTextSegment( LLStyleConstSP style, S32 start, S32 end, LLTextBase& editor )
+: LLTextSegment(start, end),
+ mStyle( style ),
+ mToken(NULL),
+ mEditor(editor)
+{
+ mFontHeight = llceil(mStyle->getFont()->getLineHeight());
+
+ LLUIImagePtr image = mStyle->getImage();
+ if (image.notNull())
+ {
+ mImageLoadedConnection = image->addLoadedCallback(boost::bind(&LLTextBase::needsReflow, &mEditor, start));
+ }
+}
+
+LLNormalTextSegment::LLNormalTextSegment( const LLColor4& color, S32 start, S32 end, LLTextBase& editor, BOOL is_visible)
+: LLTextSegment(start, end),
+ mToken(NULL),
+ mEditor(editor)
+{
+ mStyle = new LLStyle(LLStyle::Params().visible(is_visible).color(color));
+
+ mFontHeight = llceil(mStyle->getFont()->getLineHeight());
+}
+
+LLNormalTextSegment::~LLNormalTextSegment()
+{
+ mImageLoadedConnection.disconnect();
+}
+
+
+F32 LLNormalTextSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect)
+{
+ if( end - start > 0 )
+ {
+ return drawClippedSegment( getStart() + start, getStart() + end, selection_start, selection_end, draw_rect);
+ }
+ return draw_rect.mLeft;
+}
+
+// Draws a single text segment, reversing the color for selection if needed.
+F32 LLNormalTextSegment::drawClippedSegment(S32 seg_start, S32 seg_end, S32 selection_start, S32 selection_end, LLRect rect)
+{
+ F32 alpha = LLViewDrawContext::getCurrentContext().mAlpha;
+
+ const LLWString &text = mEditor.getWText();
+
+ F32 right_x = rect.mLeft;
+ if (!mStyle->isVisible())
+ {
+ return right_x;
+ }
+
+ const LLFontGL* font = mStyle->getFont();
+
+ LLColor4 color = (mEditor.getReadOnly() ? mStyle->getReadOnlyColor() : mStyle->getColor()) % alpha;
+
+ if( selection_start > seg_start )
+ {
+ // Draw normally
+ S32 start = seg_start;
+ S32 end = llmin( selection_start, seg_end );
+ S32 length = end - start;
+ font->render(text, start,
+ rect,
+ color,
+ LLFontGL::LEFT, mEditor.mVAlign,
+ LLFontGL::NORMAL,
+ mStyle->getShadowType(),
+ length,
+ &right_x,
+ mEditor.getUseEllipses());
+ }
+ rect.mLeft = (S32)ceil(right_x);
+
+ if( (selection_start < seg_end) && (selection_end > seg_start) )
+ {
+ // Draw reversed
+ S32 start = llmax( selection_start, seg_start );
+ S32 end = llmin( selection_end, seg_end );
+ S32 length = end - start;
+
+ font->render(text, start,
+ rect,
+ LLColor4( 1.f - color.mV[0], 1.f - color.mV[1], 1.f - color.mV[2], 1.f ),
+ LLFontGL::LEFT, mEditor.mVAlign,
+ LLFontGL::NORMAL,
+ LLFontGL::NO_SHADOW,
+ length,
+ &right_x,
+ mEditor.getUseEllipses());
+ }
+ rect.mLeft = (S32)ceil(right_x);
+ if( selection_end < seg_end )
+ {
+ // Draw normally
+ S32 start = llmax( selection_end, seg_start );
+ S32 end = seg_end;
+ S32 length = end - start;
+ font->render(text, start,
+ rect,
+ color,
+ LLFontGL::LEFT, mEditor.mVAlign,
+ LLFontGL::NORMAL,
+ mStyle->getShadowType(),
+ length,
+ &right_x,
+ mEditor.getUseEllipses());
+ }
+ return right_x;
+}
+
+BOOL LLNormalTextSegment::handleHover(S32 x, S32 y, MASK mask)
+{
+ if (getStyle() && getStyle()->isLink())
+ {
+ // Only process the click if it's actually in this segment, not to the right of the end-of-line.
+ if(mEditor.getSegmentAtLocalPos(x, y, false) == this)
+ {
+ LLUI::getWindow()->setCursor(UI_CURSOR_HAND);
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+BOOL LLNormalTextSegment::handleRightMouseDown(S32 x, S32 y, MASK mask)
+{
+ if (getStyle() && getStyle()->isLink())
+ {
+ // Only process the click if it's actually in this segment, not to the right of the end-of-line.
+ if(mEditor.getSegmentAtLocalPos(x, y, false) == this)
+ {
+ mEditor.createUrlContextMenu(x, y, getStyle()->getLinkHREF());
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+BOOL LLNormalTextSegment::handleMouseDown(S32 x, S32 y, MASK mask)
+{
+ if (getStyle() && getStyle()->isLink())
+ {
+ // Only process the click if it's actually in this segment, not to the right of the end-of-line.
+ if(mEditor.getSegmentAtLocalPos(x, y, false) == this)
+ {
+ // eat mouse down event on hyperlinks, so we get the mouse up
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
+BOOL LLNormalTextSegment::handleMouseUp(S32 x, S32 y, MASK mask)
+{
+ if (getStyle() && getStyle()->isLink())
+ {
+ // Only process the click if it's actually in this segment, not to the right of the end-of-line.
+ if(mEditor.getSegmentAtLocalPos(x, y, false) == this)
+ {
+ LLUrlAction::clickAction(getStyle()->getLinkHREF());
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
+BOOL LLNormalTextSegment::handleToolTip(S32 x, S32 y, MASK mask)
+{
+ std::string msg;
+ // do we have a tooltip for a loaded keyword (for script editor)?
+ if (mToken && !mToken->getToolTip().empty())
+ {
+ const LLWString& wmsg = mToken->getToolTip();
+ LLToolTipMgr::instance().show(wstring_to_utf8str(wmsg));
+ return TRUE;
+ }
+ // or do we have an explicitly set tooltip (e.g., for Urls)
+ if (!mTooltip.empty())
+ {
+ LLToolTipMgr::instance().show(mTooltip);
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+void LLNormalTextSegment::setToolTip(const std::string& tooltip)
+{
+ // we cannot replace a keyword tooltip that's loaded from a file
+ if (mToken)
+ {
+ llwarns << "LLTextSegment::setToolTip: cannot replace keyword tooltip." << llendl;
+ return;
+ }
+ mTooltip = tooltip;
+}
+
+bool LLNormalTextSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const
+{
+ height = 0;
+ width = 0;
+ if (num_chars > 0)
+ {
+ height = mFontHeight;
+ const LLWString &text = mEditor.getWText();
+ // if last character is a newline, then return true, forcing line break
+ width = mStyle->getFont()->getWidth(text.c_str(), mStart + first_char, num_chars);
+ }
+ return false;
+}
+
+S32 LLNormalTextSegment::getOffset(S32 segment_local_x_coord, S32 start_offset, S32 num_chars, bool round) const
+{
+ const LLWString &text = mEditor.getWText();
+ return mStyle->getFont()->charFromPixelOffset(text.c_str(), mStart + start_offset,
+ (F32)segment_local_x_coord,
+ F32_MAX,
+ num_chars,
+ round);
+}
+
+S32 LLNormalTextSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const
+{
+ const LLWString &text = mEditor.getWText();
+
+ LLUIImagePtr image = mStyle->getImage();
+ if( image.notNull())
+ {
+ num_pixels = llmax(0, num_pixels - image->getWidth());
+ }
+
+ S32 last_char = mEnd;
+
+ // set max characters to length of segment, or to first newline
+ max_chars = llmin(max_chars, last_char - (mStart + segment_offset));
+
+ // if no character yet displayed on this line, don't require word wrapping since
+ // we can just move to the next line, otherwise insist on it so we make forward progress
+ LLFontGL::EWordWrapStyle word_wrap_style = (line_offset == 0)
+ ? LLFontGL::WORD_BOUNDARY_IF_POSSIBLE
+ : LLFontGL::ONLY_WORD_BOUNDARIES;
+ S32 num_chars = mStyle->getFont()->maxDrawableChars(text.c_str() + segment_offset + mStart,
+ (F32)num_pixels,
+ max_chars,
+ word_wrap_style);
+
+ if (num_chars == 0
+ && line_offset == 0
+ && max_chars > 0)
+ {
+ // If at the beginning of a line, and a single character won't fit, draw it anyway
+ num_chars = 1;
+ }
+
+ // include *either* the EOF or newline character in this run of text
+ // but not both
+ S32 last_char_in_run = mStart + segment_offset + num_chars;
+ // check length first to avoid indexing off end of string
+ if (last_char_in_run < mEnd
+ && (last_char_in_run >= mEditor.getLength() ))
+ {
+ num_chars++;
+ }
+ return num_chars;
+}
+
+void LLNormalTextSegment::dump() const
+{
+ llinfos << "Segment [" <<
+// mColor.mV[VX] << ", " <<
+// mColor.mV[VY] << ", " <<
+// mColor.mV[VZ] << "]\t[" <<
+ mStart << ", " <<
+ getEnd() << "]" <<
+ llendl;
+}
+
+
+//
+// LLInlineViewSegment
+//
+
+LLInlineViewSegment::LLInlineViewSegment(const Params& p, S32 start, S32 end)
+: LLTextSegment(start, end),
+ mView(p.view),
+ mForceNewLine(p.force_newline),
+ mLeftPad(p.left_pad),
+ mRightPad(p.right_pad),
+ mTopPad(p.top_pad),
+ mBottomPad(p.bottom_pad)
+{
+}
+
+LLInlineViewSegment::~LLInlineViewSegment()
+{
+ mView->die();
+}
+
+bool LLInlineViewSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const
+{
+ if (first_char == 0 && num_chars == 0)
+ {
+ // we didn't fit on a line, the widget will fall on the next line
+ // so dimensions here are 0
+ width = 0;
+ height = 0;
+ }
+ else
+ {
+ width = mLeftPad + mRightPad + mView->getRect().getWidth();
+ height = mBottomPad + mTopPad + mView->getRect().getHeight();
+ }
+
+ return false;
+}
+
+S32 LLInlineViewSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const
+{
+ // if putting a widget anywhere but at the beginning of a line
+ // and the widget doesn't fit or mForceNewLine is true
+ // then return 0 chars for that line, and all characters for the next
+ if (line_offset != 0
+ && (mForceNewLine || num_pixels < mView->getRect().getWidth()))
+ {
+ return 0;
+ }
+ else
+ {
+ return mEnd - mStart;
+ }
+}
+
+void LLInlineViewSegment::updateLayout(const LLTextBase& editor)
+{
+ LLRect start_rect = editor.getDocRectFromDocIndex(mStart);
+ mView->setOrigin(start_rect.mLeft + mLeftPad, start_rect.mBottom + mBottomPad);
+}
+
+F32 LLInlineViewSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect)
+{
+ // return padded width of widget
+ // widget is actually drawn during mDocumentView's draw()
+ return (F32)(draw_rect.mLeft + mView->getRect().getWidth() + mLeftPad + mRightPad);
+}
+
+void LLInlineViewSegment::unlinkFromDocument(LLTextBase* editor)
+{
+ editor->removeDocumentChild(mView);
+}
+
+void LLInlineViewSegment::linkToDocument(LLTextBase* editor)
+{
+ editor->addDocumentChild(mView);
+}
+
+LLLineBreakTextSegment::LLLineBreakTextSegment(S32 pos):LLTextSegment(pos,pos+1)
+{
+ LLStyleSP s( new LLStyle(LLStyle::Params().visible(true)));
+
+ mFontHeight = llceil(s->getFont()->getLineHeight());
+}
+LLLineBreakTextSegment::LLLineBreakTextSegment(LLStyleConstSP style,S32 pos):LLTextSegment(pos,pos+1)
+{
+ mFontHeight = llceil(style->getFont()->getLineHeight());
+}
+LLLineBreakTextSegment::~LLLineBreakTextSegment()
+{
+}
+bool LLLineBreakTextSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const
+{
+ width = 0;
+ height = mFontHeight;
+
+ return true;
+}
+S32 LLLineBreakTextSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const
+{
+ return 1;
+}
+F32 LLLineBreakTextSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect)
+{
+ return draw_rect.mLeft;
+}
+
+LLImageTextSegment::LLImageTextSegment(LLStyleConstSP style,S32 pos,class LLTextBase& editor)
+ :LLTextSegment(pos,pos+1)
+ ,mStyle( style )
+ ,mEditor(editor)
+{
+}
+
+LLImageTextSegment::~LLImageTextSegment()
+{
+}
+
+static const S32 IMAGE_HPAD = 3;
+
+bool LLImageTextSegment::getDimensions(S32 first_char, S32 num_chars, S32& width, S32& height) const
+{
+ width = 0;
+ height = llceil(mStyle->getFont()->getLineHeight());;
+
+ LLUIImagePtr image = mStyle->getImage();
+ if( num_chars>0 && image.notNull())
+ {
+ width += image->getWidth() + IMAGE_HPAD;
+ height = llmax(height, image->getHeight() + IMAGE_HPAD );
+ }
+ return false;
+}
+
+S32 LLImageTextSegment::getNumChars(S32 num_pixels, S32 segment_offset, S32 line_offset, S32 max_chars) const
+{
+ LLUIImagePtr image = mStyle->getImage();
+ S32 image_width = image->getWidth();
+ if(line_offset == 0 || num_pixels>image_width + IMAGE_HPAD)
+ {
+ return 1;
+ }
+ return 0;
+}
+
+F32 LLImageTextSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect)
+{
+ if ( (start >= 0) && (end <= mEnd - mStart))
+ {
+ LLColor4 color = LLColor4::white % mEditor.getDrawContext().mAlpha;
+ LLUIImagePtr image = mStyle->getImage();
+ S32 style_image_height = image->getHeight();
+ S32 style_image_width = image->getWidth();
+ // Text is drawn from the top of the draw_rect downward
+
+ S32 text_center = draw_rect.mTop - (draw_rect.getHeight() / 2);
+ // Align image to center of draw rect
+ S32 image_bottom = text_center - (style_image_height / 2);
+ image->draw(draw_rect.mLeft, image_bottom,
+ style_image_width, style_image_height, color);
+
+ const S32 IMAGE_HPAD = 3;
+ return draw_rect.mLeft + style_image_width + IMAGE_HPAD;
+ }
+ return 0.0;
+}
+
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