From 5546f78fff25e59b57eb0a62d9ecacdd5c904b3d Mon Sep 17 00:00:00 2001 From: Leyla Farazha Date: Tue, 6 Jul 2010 17:55:12 -0700 Subject: fixing windows line endings --- indra/llui/lltextbase.cpp | 5678 ++++++++++++++++++++++----------------------- 1 file changed, 2839 insertions(+), 2839 deletions(-) diff --git a/indra/llui/lltextbase.cpp b/indra/llui/lltextbase.cpp index c72cdba263..c62d699c7e 100644 --- a/indra/llui/lltextbase.cpp +++ b/indra/llui/lltextbase.cpp @@ -1,2839 +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 "lltextutil.h" -#include "lltooltip.h" -#include "lluictrl.h" -#include "llurlaction.h" -#include "llurlregistry.h" -#include "llview.h" -#include "llwindow.h" -#include - -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(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(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 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::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 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 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(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(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; -} - +/** + * @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 + +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(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(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 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::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 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 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(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(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; +} + -- cgit v1.2.3