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Diffstat (limited to 'indra/llui/lltextbase.cpp')
| -rw-r--r-- | indra/llui/lltextbase.cpp | 2901 |
1 files changed, 2901 insertions, 0 deletions
diff --git a/indra/llui/lltextbase.cpp b/indra/llui/lltextbase.cpp new file mode 100644 index 0000000000..574b24cf13 --- /dev/null +++ b/indra/llui/lltextbase.cpp @@ -0,0 +1,2901 @@ +/** + * @file lltextbase.cpp + * @author Martin Reddy + * @brief The base class of text box/editor, providing Url handling support + * + * $LicenseInfo:firstyear=2009&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2010, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA + * $/LicenseInfo$ + */ + +#include "linden_common.h" + +#include "lltextbase.h" + +#include "lllocalcliprect.h" +#include "llmenugl.h" +#include "llscrollcontainer.h" +#include "llstl.h" +#include "lltextparser.h" +#include "lltextutil.h" +#include "lltooltip.h" +#include "lluictrl.h" +#include "llurlaction.h" +#include "llurlregistry.h" +#include "llview.h" +#include "llwindow.h" +#include <boost/bind.hpp> + +const F32 CURSOR_FLASH_DELAY = 1.0f; // in seconds +const S32 CURSOR_THICKNESS = 2; + +LLTextBase::line_info::line_info(S32 index_start, S32 index_end, LLRect rect, S32 line_num) +: mDocIndexStart(index_start), + mDocIndexEnd(index_end), + mRect(rect), + mLineNum(line_num) +{} + +bool LLTextBase::compare_segment_end::operator()(const LLTextSegmentPtr& a, const LLTextSegmentPtr& b) const +{ + // sort empty spans (e.g. 11-11) after previous non-empty spans (e.g. 5-11) + if (a->getEnd() == b->getEnd()) + { + return a->getStart() < b->getStart(); + } + else + { + 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"), + text_selected_color("text_selected_color"), + bg_selected_color("bg_selected_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), + parse_urls("parse_urls", false), + parse_highlights("parse_highlights", false) +{ + addSynonym(track_end, "track_bottom"); + addSynonym(wrap, "word_wrap"); + addSynonym(parse_urls, "allow_html"); +} + + +LLTextBase::LLTextBase(const LLTextBase::Params &p) +: LLUICtrl(p, LLTextViewModelPtr(new LLTextViewModel)), + mURLClickSignal(NULL), + 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), + mTextSelectedColor(p.text_selected_color), + mSelectedBGColor(p.bg_selected_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.parse_urls), + mParseHighlights(p.parse_highlights), + mBGVisible(p.bg_visible), + mScroller(NULL), + mStyleDirty(true) +{ + if(p.allow_scroll) + { + LLScrollContainer::Params scroll_params; + scroll_params.name = "text scroller"; + scroll_params.rect = getLocalRect(); + scroll_params.follows.flags = FOLLOWS_ALL; + scroll_params.is_opaque = false; + scroll_params.mouse_opaque = false; + scroll_params.min_auto_scroll_rate = 200; + scroll_params.max_auto_scroll_rate = 800; + scroll_params.border_visible = p.border_visible; + mScroller = LLUICtrlFactory::create<LLScrollContainer>(scroll_params); + addChild(mScroller); + } + + LLView::Params view_params; + view_params.name = "text_contents"; + view_params.rect = LLRect(0, 500, 500, 0); + view_params.mouse_opaque = false; + + mDocumentView = LLUICtrlFactory::create<LLView>(view_params); + if (mScroller) + { + mScroller->addChild(mDocumentView); + } + else + { + addChild(mDocumentView); + } + + createDefaultSegment(); + + updateRects(); +} + +LLTextBase::~LLTextBase() +{ + mSegments.clear(); + delete mURLClickSignal; +} + +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; + } +} + +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; +} + +const LLStyle::Params& LLTextBase::getDefaultStyleParams() +{ + //FIXME: convert mDefaultStyle to a flyweight http://www.boost.org/doc/libs/1_40_0/libs/flyweight/doc/index.html + //and eliminate color member values + if (mStyleDirty) + { + mDefaultStyle + .color(LLUIColor(&mFgColor)) // pass linked color instead of copy of mFGColor + .readonly_color(LLUIColor(&mReadOnlyFgColor)) + .selected_color(LLUIColor(&mTextSelectedColor)) + .font(mDefaultFont) + .drop_shadow(mFontShadow); + mStyleDirty = false; + } + return mDefaultStyle; +} + +void LLTextBase::onValueChange(S32 start, S32 end) +{ +} + + +// Draws the black box behind the selected text +void LLTextBase::drawSelectionBackground() +{ + // Draw selection even if we don't have keyboard focus for search/replace + if( hasSelection() && !mLineInfoList.empty()) + { + std::vector<LLRect> selection_rects; + + S32 selection_left = llmin( mSelectionStart, mSelectionEnd ); + S32 selection_right = llmax( mSelectionStart, mSelectionEnd ); + LLRect selection_rect = mVisibleTextRect; + + // Skip through the lines we aren't drawing. + LLRect content_display_rect = getVisibleDocumentRect(); + + // binary search for line that starts before top of visible buffer + line_list_t::const_iterator line_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), content_display_rect.mTop, compare_bottom()); + line_list_t::const_iterator end_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), content_display_rect.mBottom, compare_top()); + + bool done = false; + + // Find the coordinates of the selected area + for (;line_iter != end_iter && !done; ++line_iter) + { + // is selection visible on this line? + if (line_iter->mDocIndexEnd > selection_left && line_iter->mDocIndexStart < selection_right) + { + segment_set_t::iterator segment_iter; + S32 segment_offset; + getSegmentAndOffset(line_iter->mDocIndexStart, &segment_iter, &segment_offset); + + LLRect selection_rect; + selection_rect.mLeft = line_iter->mRect.mLeft; + selection_rect.mRight = line_iter->mRect.mLeft; + selection_rect.mBottom = line_iter->mRect.mBottom; + selection_rect.mTop = line_iter->mRect.mTop; + + for(;segment_iter != mSegments.end(); ++segment_iter, segment_offset = 0) + { + LLTextSegmentPtr segmentp = *segment_iter; + + S32 segment_line_start = segmentp->getStart() + segment_offset; + S32 segment_line_end = llmin(segmentp->getEnd(), line_iter->mDocIndexEnd); + + if (segment_line_start > segment_line_end) break; + + S32 segment_width = 0; + S32 segment_height = 0; + + // if selection after beginning of segment + if(selection_left >= segment_line_start) + { + S32 num_chars = llmin(selection_left, segment_line_end) - segment_line_start; + segmentp->getDimensions(segment_offset, num_chars, segment_width, segment_height); + selection_rect.mLeft += segment_width; + } + + // if selection_right == segment_line_end then that means we are the first character of the next segment + // or first character of the next line, in either case we want to add the length of the current segment + // to the selection rectangle and continue. + // if selection right > segment_line_end then selection spans end of current segment... + if (selection_right >= segment_line_end) + { + // extend selection slightly beyond end of line + // to indicate selection of newline character (use "n" character to determine width) + S32 num_chars = segment_line_end - segment_line_start; + segmentp->getDimensions(segment_offset, num_chars, segment_width, segment_height); + selection_rect.mRight += segment_width; + } + // else if selection ends on current segment... + else + { + S32 num_chars = selection_right - segment_line_start; + segmentp->getDimensions(segment_offset, num_chars, segment_width, segment_height); + selection_rect.mRight += segment_width; + + break; + } + } + selection_rects.push_back(selection_rect); + } + } + + // Draw the selection box (we're using a box instead of reversing the colors on the selected text). + gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE); + const LLColor4& color = mSelectedBGColor; + F32 alpha = hasFocus() ? 0.7f : 0.3f; + alpha *= getDrawContext().mAlpha; + LLColor4 selection_color(color.mV[VRED], color.mV[VGREEN], color.mV[VBLUE], alpha); + + for (std::vector<LLRect>::iterator rect_it = selection_rects.begin(); + rect_it != selection_rects.end(); + ++rect_it) + { + LLRect selection_rect = *rect_it; + selection_rect.translate(mVisibleTextRect.mLeft - content_display_rect.mLeft, mVisibleTextRect.mBottom - content_display_rect.mBottom); + gl_rect_2d(selection_rect, selection_color); + } + } +} + +void LLTextBase::drawCursor() +{ + F32 alpha = getDrawContext().mAlpha; + + if( hasFocus() + && gFocusMgr.getAppHasFocus() + && !mReadOnly) + { + const LLWString &wtext = getWText(); + const llwchar* text = wtext.c_str(); + + LLRect cursor_rect = getLocalRectFromDocIndex(mCursorPos); + cursor_rect.translate(-1, 0); + segment_set_t::iterator seg_it = getSegIterContaining(mCursorPos); + + // take style from last segment + LLTextSegmentPtr segmentp; + + if (seg_it != mSegments.end()) + { + segmentp = *seg_it; + } + else + { + 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; + text_color = segmentp->getColor(); + fontp = segmentp->getStyle()->getFont(); + fontp->render(text, mCursorPos, cursor_rect, + LLColor4(1.f - text_color.mV[VRED], 1.f - text_color.mV[VGREEN], 1.f - text_color.mV[VBLUE], alpha), + LLFontGL::LEFT, mVAlign, + LLFontGL::NORMAL, + LLFontGL::NO_SHADOW, + 1); + } + + // Make sure the IME is in the right place + LLRect screen_pos = calcScreenRect(); + LLCoordGL ime_pos( screen_pos.mLeft + llfloor(cursor_rect.mLeft), screen_pos.mBottom + llfloor(cursor_rect.mTop) ); + + ime_pos.mX = (S32) (ime_pos.mX * LLUI::sGLScaleFactor.mV[VX]); + ime_pos.mY = (S32) (ime_pos.mY * LLUI::sGLScaleFactor.mV[VY]); + getWindow()->setLanguageTextInput( ime_pos ); + } + } +} + +void LLTextBase::drawText() +{ + const S32 text_len = getLength(); + if( text_len <= 0 ) + { + return; + } + S32 selection_left = -1; + S32 selection_right = -1; + // Draw selection even if we don't have keyboard focus for search/replace + if( hasSelection()) + { + selection_left = llmin( mSelectionStart, mSelectionEnd ); + selection_right = llmax( mSelectionStart, mSelectionEnd ); + } + + LLRect scrolled_view_rect = getVisibleDocumentRect(); + std::pair<S32, S32> line_range = getVisibleLines(mClipPartial); + S32 first_line = line_range.first; + S32 last_line = line_range.second; + if (first_line >= last_line) + { + return; + } + + S32 line_start = getLineStart(first_line); + // find first text segment that spans top of visible portion of text buffer + segment_set_t::iterator seg_iter = getSegIterContaining(line_start); + if (seg_iter == mSegments.end()) + { + return; + } + + LLTextSegmentPtr cur_segment = *seg_iter; + + for (S32 cur_line = first_line; cur_line < last_line; cur_line++) + { + S32 next_line = cur_line + 1; + line_info& line = mLineInfoList[cur_line]; + + S32 next_start = -1; + S32 line_end = text_len; + + if (next_line < getLineCount()) + { + next_start = getLineStart(next_line); + line_end = next_start; + } + + LLRect text_rect(line.mRect.mLeft + mVisibleTextRect.mLeft - scrolled_view_rect.mLeft, + line.mRect.mTop - scrolled_view_rect.mBottom + mVisibleTextRect.mBottom, + llmin(mDocumentView->getRect().getWidth(), line.mRect.mRight) - scrolled_view_rect.mLeft, + line.mRect.mBottom - scrolled_view_rect.mBottom + mVisibleTextRect.mBottom); + + // draw a single line of text + S32 seg_start = line_start; + while( seg_start < line_end ) + { + while( cur_segment->getEnd() <= seg_start ) + { + seg_iter++; + if (seg_iter == mSegments.end()) + { + llwarns << "Ran off the segmentation end!" << llendl; + + return; + } + cur_segment = *seg_iter; + } + + S32 clipped_end = llmin( line_end, cur_segment->getEnd() ) - cur_segment->getStart(); + + if (mUseEllipses // using ellipses + && clipped_end == line_end // last segment on line + && next_line == last_line // this is the last visible line + && last_line < (S32)mLineInfoList.size()) // and there is more text to display + { + // more lines of text to go, but we can't fit them + // so shrink text rect to force ellipses + text_rect.mRight -= 2; + } + + text_rect.mLeft = (S32)(cur_segment->draw(seg_start - cur_segment->getStart(), clipped_end, selection_left, selection_right, text_rect)); + + seg_start = clipped_end + cur_segment->getStart(); + } + + line_start = next_start; + } +} + +/////////////////////////////////////////////////////////////////// +// Returns change in number of characters in mWText + +S32 LLTextBase::insertStringNoUndo(S32 pos, const LLWString &wstr, LLTextBase::segment_vec_t* segments ) +{ + LLWString text(getWText()); + S32 old_len = text.length(); // length() returns character length + S32 insert_len = wstr.length(); + + pos = getEditableIndex(pos, true); + + segment_set_t::iterator seg_iter = getSegIterContaining(pos); + + LLTextSegmentPtr default_segment; + + LLTextSegmentPtr segmentp; + if (seg_iter != mSegments.end()) + { + segmentp = *seg_iter; + } + else + { + //segmentp = mSegments.back(); + return pos; + } + + if (segmentp->canEdit()) + { + segmentp->setEnd(segmentp->getEnd() + insert_len); + if (seg_iter != mSegments.end()) + { + ++seg_iter; + } + } + else + { + // create default editable segment to hold new text + LLStyleConstSP sp(new LLStyle(getDefaultStyleParams())); + default_segment = new LLNormalTextSegment( sp, pos, pos + insert_len, *this); + } + + // shift remaining segments to right + for(;seg_iter != mSegments.end(); ++seg_iter) + { + LLTextSegmentPtr segmentp = *seg_iter; + segmentp->setStart(segmentp->getStart() + insert_len); + segmentp->setEnd(segmentp->getEnd() + insert_len); + } + + // insert new segments + if (segments) + { + if (default_segment.notNull()) + { + // potentially overwritten by segments passed in + insertSegment(default_segment); + } + for (segment_vec_t::iterator seg_iter = segments->begin(); + seg_iter != segments->end(); + ++seg_iter) + { + LLTextSegment* segmentp = *seg_iter; + insertSegment(segmentp); + } + } + + text.insert(pos, wstr); + getViewModel()->setDisplay(text); + + if ( truncate() ) + { + insert_len = getLength() - old_len; + } + + onValueChange(pos, pos + insert_len); + needsReflow(pos); + + return insert_len; +} + +S32 LLTextBase::removeStringNoUndo(S32 pos, S32 length) +{ + LLWString text(getWText()); + segment_set_t::iterator seg_iter = getSegIterContaining(pos); + while(seg_iter != mSegments.end()) + { + LLTextSegmentPtr segmentp = *seg_iter; + S32 end = pos + length; + if (segmentp->getStart() < pos) + { + // deleting from middle of segment + if (segmentp->getEnd() > end) + { + segmentp->setEnd(segmentp->getEnd() - length); + } + // truncating segment + else + { + segmentp->setEnd(pos); + } + } + else if (segmentp->getStart() < end) + { + // deleting entire segment + if (segmentp->getEnd() <= end) + { + // remove segment + segmentp->unlinkFromDocument(this); + segment_set_t::iterator seg_to_erase(seg_iter++); + mSegments.erase(seg_to_erase); + continue; + } + // deleting head of segment + else + { + segmentp->setStart(pos); + segmentp->setEnd(segmentp->getEnd() - length); + } + } + else + { + // shifting segments backward to fill deleted portion + segmentp->setStart(segmentp->getStart() - length); + segmentp->setEnd(segmentp->getEnd() - length); + } + ++seg_iter; + } + + text.erase(pos, length); + getViewModel()->setDisplay(text); + + // recreate default segment in case we erased everything + createDefaultSegment(); + + onValueChange(pos, pos); + needsReflow(pos); + + return -length; // This will be wrong if someone calls removeStringNoUndo with an excessive length +} + +S32 LLTextBase::overwriteCharNoUndo(S32 pos, llwchar wc) +{ + if (pos > (S32)getLength()) + { + return 0; + } + LLWString text(getWText()); + text[pos] = wc; + getViewModel()->setDisplay(text); + + onValueChange(pos, pos + 1); + needsReflow(pos); + + return 1; +} + + +void LLTextBase::createDefaultSegment() +{ + // ensures that there is always at least one segment + if (mSegments.empty()) + { + LLStyleConstSP sp(new LLStyle(getDefaultStyleParams())); + LLTextSegmentPtr default_segment = new LLNormalTextSegment( sp, 0, getLength() + 1, *this); + mSegments.insert(default_segment); + default_segment->linkToDocument(this); + } +} + +void LLTextBase::insertSegment(LLTextSegmentPtr segment_to_insert) +{ + if (segment_to_insert.isNull()) + { + return; + } + + segment_set_t::iterator cur_seg_iter = getSegIterContaining(segment_to_insert->getStart()); + S32 reflow_start_index = 0; + + if (cur_seg_iter == mSegments.end()) + { + mSegments.insert(segment_to_insert); + segment_to_insert->linkToDocument(this); + reflow_start_index = segment_to_insert->getStart(); + } + else + { + LLTextSegmentPtr cur_segmentp = *cur_seg_iter; + reflow_start_index = cur_segmentp->getStart(); + if (cur_segmentp->getStart() < segment_to_insert->getStart()) + { + S32 old_segment_end = cur_segmentp->getEnd(); + // split old at start point for new segment + cur_segmentp->setEnd(segment_to_insert->getStart()); + // advance to next segment + // insert remainder of old segment + LLStyleConstSP sp = cur_segmentp->getStyle(); + LLTextSegmentPtr remainder_segment = new LLNormalTextSegment( sp, segment_to_insert->getStart(), old_segment_end, *this); + mSegments.insert(cur_seg_iter, remainder_segment); + remainder_segment->linkToDocument(this); + // insert new segment before remainder of old segment + mSegments.insert(cur_seg_iter, segment_to_insert); + + segment_to_insert->linkToDocument(this); + // at this point, there will be two overlapping segments owning the text + // associated with the incoming segment + } + else + { + mSegments.insert(cur_seg_iter, segment_to_insert); + segment_to_insert->linkToDocument(this); + } + + // now delete/truncate remaining segments as necessary + // cur_seg_iter points to segment before incoming segment + while(cur_seg_iter != mSegments.end()) + { + cur_segmentp = *cur_seg_iter; + if (cur_segmentp == segment_to_insert) + { + ++cur_seg_iter; + continue; + } + + if (cur_segmentp->getStart() >= segment_to_insert->getStart()) + { + if(cur_segmentp->getEnd() <= segment_to_insert->getEnd()) + { + cur_segmentp->unlinkFromDocument(this); + // grab copy of iterator to erase, and bump it + segment_set_t::iterator seg_to_erase(cur_seg_iter++); + mSegments.erase(seg_to_erase); + continue; + } + else + { + // last overlapping segment, clip to end of incoming segment + // and stop traversal + cur_segmentp->setStart(segment_to_insert->getEnd()); + break; + } + } + ++cur_seg_iter; + } + } + + // layout potentially changed + needsReflow(reflow_start_index); +} + +BOOL LLTextBase::handleMouseDown(S32 x, S32 y, MASK mask) +{ + LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); + if (cur_segment && cur_segment->handleMouseDown(x, y, mask)) + { + return TRUE; + } + + return LLUICtrl::handleMouseDown(x, y, mask); +} + +BOOL LLTextBase::handleMouseUp(S32 x, S32 y, MASK mask) +{ + LLTextSegmentPtr cur_segment = getSegmentAtLocalPos(x, y); + if (cur_segment && cur_segment->handleMouseUp(x, y, mask)) + { + // Did we just click on a link? + if (mURLClickSignal + && 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 + LLRect bg_rect = mVisibleTextRect; + if (mScroller) + { + bg_rect.intersectWith(doc_rect); + } + LLColor4 bg_color = mReadOnly + ? mReadOnlyBgColor.get() + : hasFocus() + ? mFocusBgColor.get() + : mWriteableBgColor.get(); + gl_rect_2d(doc_rect, bg_color, TRUE); + } + + // draw document view + LLUICtrl::draw(); + + { + // only clip if we support scrolling... + // since convention is that text boxes never vertically truncate their contents + // regardless of rect bounds + LLLocalClipRect clip(doc_rect, mScroller != NULL); + drawSelectionBackground(); + drawText(); + drawCursor(); + } +} + + +//virtual +void LLTextBase::setColor( const LLColor4& c ) +{ + mFgColor = c; + mStyleDirty = true; +} + +//virtual +void LLTextBase::setReadOnlyColor(const LLColor4 &c) +{ + mReadOnlyFgColor = c; + mStyleDirty = true; +} + +//virtual +void LLTextBase::handleVisibilityChange( BOOL new_visibility ) +{ + if(!new_visibility && mPopupMenu) + { + mPopupMenu->hide(); + } + LLUICtrl::handleVisibilityChange(new_visibility); +} + +//virtual +void LLTextBase::setValue(const LLSD& value ) +{ + setText(value.asString()); +} + +//virtual +BOOL LLTextBase::canDeselect() const +{ + return hasSelection(); +} + + +//virtual +void LLTextBase::deselect() +{ + mSelectionStart = 0; + mSelectionEnd = 0; + mIsSelecting = FALSE; +} + + +// Sets the scrollbar from the cursor position +void LLTextBase::updateScrollFromCursor() +{ + // Update scroll position even in read-only mode (when there's no cursor displayed) + // because startOfDoc()/endOfDoc() modify cursor position. See EXT-736. + + if (!mScrollNeeded || !mScroller) + { + return; + } + mScrollNeeded = FALSE; + + // scroll so that the cursor is at the top of the page + LLRect scroller_doc_window = getVisibleDocumentRect(); + LLRect cursor_rect_doc = getLocalRectFromDocIndex(mCursorPos); + cursor_rect_doc.translate(scroller_doc_window.mLeft, scroller_doc_window.mBottom); + mScroller->scrollToShowRect(cursor_rect_doc, LLRect(0, scroller_doc_window.getHeight() - 5, scroller_doc_window.getWidth(), 5)); +} + +S32 LLTextBase::getLeftOffset(S32 width) +{ + switch (mHAlign) + { + case LLFontGL::LEFT: + return mHPad; + case LLFontGL::HCENTER: + return mHPad + llmax(0, (mVisibleTextRect.getWidth() - width - mHPad) / 2); + case LLFontGL::RIGHT: + return mVisibleTextRect.getWidth() - width; + default: + return mHPad; + } +} + + +static LLFastTimer::DeclareTimer FTM_TEXT_REFLOW ("Text Reflow"); +void LLTextBase::reflow() +{ + LLFastTimer ft(FTM_TEXT_REFLOW); + + updateSegments(); + + if (mReflowIndex == S32_MAX) + { + return; + } + + bool scrolled_to_bottom = mScroller ? mScroller->isAtBottom() : false; + + LLRect cursor_rect = getLocalRectFromDocIndex(mCursorPos); + bool follow_selection = getLocalRect().overlaps(cursor_rect); // cursor is (potentially) visible + + // store in top-left relative coordinates to avoid issues with horizontal scrollbar appearing and disappearing + cursor_rect.mTop = mVisibleTextRect.mTop - cursor_rect.mTop; + cursor_rect.mBottom = mVisibleTextRect.mTop - cursor_rect.mBottom; + + S32 first_line = getFirstVisibleLine(); + + // if scroll anchor not on first line, update it to first character of first line + if (!mLineInfoList.empty() + && (mScrollIndex < mLineInfoList[first_line].mDocIndexStart + || mScrollIndex >= mLineInfoList[first_line].mDocIndexEnd)) + { + mScrollIndex = mLineInfoList[first_line].mDocIndexStart; + } + LLRect first_char_rect = getLocalRectFromDocIndex(mScrollIndex); + // store in top-left relative coordinates to avoid issues with horizontal scrollbar appearing and disappearing + first_char_rect.mTop = mVisibleTextRect.mTop - first_char_rect.mTop; + first_char_rect.mBottom = mVisibleTextRect.mTop - first_char_rect.mBottom; + + S32 reflow_count = 0; + while(mReflowIndex < S32_MAX) + { + // we can get into an infinite loop if the document height does not monotonically increase + // with decreasing width (embedded ui elements with alternate layouts). In that case, + // we want to stop reflowing after 2 iterations. We use 2, since we need to handle the case + // of introducing a vertical scrollbar causing a reflow with less width. We should also always + // use an even number of iterations to avoid user visible oscillation of the layout + if(++reflow_count > 2) + { + lldebugs << "Breaking out of reflow due to possible infinite loop in " << getName() << llendl; + break; + } + + S32 start_index = mReflowIndex; + mReflowIndex = S32_MAX; + + // shrink document to minimum size (visible portion of text widget) + // to force inlined widgets with follows set to shrink + mDocumentView->reshape(mVisibleTextRect.getWidth(), mDocumentView->getRect().getHeight()); + + S32 cur_top = 0; + + segment_set_t::iterator seg_iter = mSegments.begin(); + S32 seg_offset = 0; + S32 line_start_index = 0; + const S32 text_available_width = mVisibleTextRect.getWidth() - mHPad; // reserve room for margin + S32 remaining_pixels = text_available_width; + S32 line_count = 0; + + // find and erase line info structs starting at start_index and going to end of document + if (!mLineInfoList.empty()) + { + // find first element whose end comes after start_index + line_list_t::iterator iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), start_index, line_end_compare()); + line_start_index = iter->mDocIndexStart; + line_count = iter->mLineNum; + cur_top = iter->mRect.mTop; + getSegmentAndOffset(iter->mDocIndexStart, &seg_iter, &seg_offset); + mLineInfoList.erase(iter, mLineInfoList.end()); + } + + S32 line_height = 0; + + while(seg_iter != mSegments.end()) + { + LLTextSegmentPtr segment = *seg_iter; + + // track maximum height of any segment on this line + S32 cur_index = segment->getStart() + seg_offset; + + // ask segment how many character fit in remaining space + S32 character_count = segment->getNumChars(getWordWrap() ? llmax(0, remaining_pixels) : S32_MAX, + seg_offset, + cur_index - line_start_index, + S32_MAX); + + S32 segment_width, segment_height; + bool force_newline = segment->getDimensions(seg_offset, character_count, segment_width, segment_height); + // grow line height as necessary based on reported height of this segment + line_height = llmax(line_height, segment_height); + remaining_pixels -= segment_width; + + seg_offset += character_count; + + S32 last_segment_char_on_line = segment->getStart() + seg_offset; + + S32 text_actual_width = text_available_width - remaining_pixels; + S32 text_left = getLeftOffset(text_actual_width); + LLRect line_rect(text_left, + cur_top, + text_left + text_actual_width, + cur_top - line_height); + + // if we didn't finish the current segment... + if (last_segment_char_on_line < segment->getEnd()) + { + // add line info and keep going + mLineInfoList.push_back(line_info( + line_start_index, + last_segment_char_on_line, + line_rect, + line_count)); + + line_start_index = segment->getStart() + seg_offset; + cur_top -= llround((F32)line_height * mLineSpacingMult) + mLineSpacingPixels; + remaining_pixels = text_available_width; + line_height = 0; + } + // ...just consumed last segment.. + else if (++segment_set_t::iterator(seg_iter) == mSegments.end()) + { + mLineInfoList.push_back(line_info( + line_start_index, + last_segment_char_on_line, + line_rect, + line_count)); + cur_top -= llround((F32)line_height * mLineSpacingMult) + mLineSpacingPixels; + break; + } + // ...or finished a segment and there are segments remaining on this line + else + { + // subtract pixels used and increment segment + if (force_newline) + { + mLineInfoList.push_back(line_info( + line_start_index, + last_segment_char_on_line, + line_rect, + line_count)); + line_start_index = segment->getStart() + seg_offset; + cur_top -= llround((F32)line_height * mLineSpacingMult) + mLineSpacingPixels; + line_height = 0; + remaining_pixels = text_available_width; + } + ++seg_iter; + seg_offset = 0; + } + if (force_newline) + { + line_count++; + } + } + + // calculate visible region for diplaying text + updateRects(); + + for (segment_set_t::iterator segment_it = mSegments.begin(); + segment_it != mSegments.end(); + ++segment_it) + { + LLTextSegmentPtr segmentp = *segment_it; + segmentp->updateLayout(*this); + + } + } + + // apply scroll constraints after reflowing text + if (!hasMouseCapture() && mScroller) + { + if (scrolled_to_bottom && mTrackEnd) + { + // keep bottom of text buffer visible + endOfDoc(); + } + else if (hasSelection() && follow_selection) + { + // keep cursor in same vertical position on screen when selecting text + LLRect new_cursor_rect_doc = getDocRectFromDocIndex(mCursorPos); + LLRect old_cursor_rect = cursor_rect; + old_cursor_rect.mTop = mVisibleTextRect.mTop - cursor_rect.mTop; + old_cursor_rect.mBottom = mVisibleTextRect.mTop - cursor_rect.mBottom; + + mScroller->scrollToShowRect(new_cursor_rect_doc, old_cursor_rect); + } + else + { + // keep first line of text visible + LLRect new_first_char_rect = getDocRectFromDocIndex(mScrollIndex); + + // pass in desired rect in the coordinate frame of the document viewport + LLRect old_first_char_rect = first_char_rect; + old_first_char_rect.mTop = mVisibleTextRect.mTop - first_char_rect.mTop; + old_first_char_rect.mBottom = mVisibleTextRect.mTop - first_char_rect.mBottom; + + mScroller->scrollToShowRect(new_first_char_rect, old_first_char_rect); + } + } + + // reset desired x cursor position + updateCursorXPos(); +} + +LLRect LLTextBase::getTextBoundingRect() +{ + reflow(); + return mTextBoundingRect; +} + + +void LLTextBase::clearSegments() +{ + mSegments.clear(); + createDefaultSegment(); +} + +S32 LLTextBase::getLineStart( S32 line ) const +{ + S32 num_lines = getLineCount(); + if (num_lines == 0) + { + return 0; + } + + line = llclamp(line, 0, num_lines-1); + return mLineInfoList[line].mDocIndexStart; +} + +S32 LLTextBase::getLineEnd( S32 line ) const +{ + S32 num_lines = getLineCount(); + if (num_lines == 0) + { + return 0; + } + + line = llclamp(line, 0, num_lines-1); + return mLineInfoList[line].mDocIndexEnd; +} + + + +S32 LLTextBase::getLineNumFromDocIndex( S32 doc_index, bool include_wordwrap) const +{ + if (mLineInfoList.empty()) + { + return 0; + } + else + { + line_list_t::const_iterator iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), doc_index, line_end_compare()); + if (include_wordwrap) + { + return iter - mLineInfoList.begin(); + } + else + { + if (iter == mLineInfoList.end()) + { + return mLineInfoList.back().mLineNum; + } + else + { + return iter->mLineNum; + } + } + } +} + +// Given an offset into text (pos), find the corresponding line (from the start of the doc) and an offset into the line. +S32 LLTextBase::getLineOffsetFromDocIndex( S32 startpos, bool include_wordwrap) const +{ + if (mLineInfoList.empty()) + { + return startpos; + } + else + { + line_list_t::const_iterator iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), startpos, line_end_compare()); + return startpos - iter->mDocIndexStart; + } +} + +S32 LLTextBase::getFirstVisibleLine() const +{ + LLRect visible_region = getVisibleDocumentRect(); + + // binary search for line that starts before top of visible buffer + line_list_t::const_iterator iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mTop, compare_bottom()); + + return iter - mLineInfoList.begin(); +} + +std::pair<S32, S32> LLTextBase::getVisibleLines(bool fully_visible) +{ + LLRect visible_region = getVisibleDocumentRect(); + line_list_t::const_iterator first_iter; + line_list_t::const_iterator last_iter; + + // make sure we have an up-to-date mLineInfoList + reflow(); + + if (fully_visible) + { + first_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mTop, compare_top()); + last_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mBottom, compare_bottom()); + } + else + { + first_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mTop, compare_bottom()); + last_iter = std::lower_bound(mLineInfoList.begin(), mLineInfoList.end(), visible_region.mBottom, compare_top()); + } + return std::pair<S32, S32>(first_iter - mLineInfoList.begin(), last_iter - mLineInfoList.begin()); +} + + + +LLTextViewModel* LLTextBase::getViewModel() const +{ + return (LLTextViewModel*)mViewModel.get(); +} + +void LLTextBase::addDocumentChild(LLView* view) +{ + mDocumentView->addChild(view); +} + +void LLTextBase::removeDocumentChild(LLView* view) +{ + mDocumentView->removeChild(view); +} + + +static LLFastTimer::DeclareTimer FTM_UPDATE_TEXT_SEGMENTS("Update Text Segments"); +void LLTextBase::updateSegments() +{ + LLFastTimer ft(FTM_UPDATE_TEXT_SEGMENTS); + createDefaultSegment(); +} + +void LLTextBase::getSegmentAndOffset( S32 startpos, segment_set_t::const_iterator* seg_iter, S32* offsetp ) const +{ + *seg_iter = getSegIterContaining(startpos); + if (*seg_iter == mSegments.end()) + { + *offsetp = 0; + } + else + { + *offsetp = startpos - (**seg_iter)->getStart(); + } +} + +void LLTextBase::getSegmentAndOffset( S32 startpos, segment_set_t::iterator* seg_iter, S32* offsetp ) +{ + *seg_iter = getSegIterContaining(startpos); + if (*seg_iter == mSegments.end()) + { + *offsetp = 0; + } + else + { + *offsetp = startpos - (**seg_iter)->getStart(); + } +} + +LLTextBase::segment_set_t::iterator LLTextBase::getSegIterContaining(S32 index) +{ + static LLPointer<LLIndexSegment> index_segment = new LLIndexSegment(); + + if (index > getLength()) { return mSegments.end(); } + + // when there are no segments, we return the end iterator, which must be checked by caller + if (mSegments.size() <= 1) { return mSegments.begin(); } + + //FIXME: avoid operator new somehow (without running into refcount problems) + index_segment->setStart(index); + index_segment->setEnd(index); + segment_set_t::iterator it = mSegments.upper_bound(index_segment); + return it; +} + +LLTextBase::segment_set_t::const_iterator LLTextBase::getSegIterContaining(S32 index) const +{ + static LLPointer<LLIndexSegment> index_segment = new LLIndexSegment(); + + if (index > getLength()) { return mSegments.end(); } + + // when there are no segments, we return the end iterator, which must be checked by caller + if (mSegments.size() <= 1) { return mSegments.begin(); } + + index_segment->setStart(index); + index_segment->setEnd(index); + LLTextBase::segment_set_t::const_iterator it = mSegments.upper_bound(index_segment); + return it; +} + +// Finds the text segment (if any) at the give local screen position +LLTextSegmentPtr LLTextBase::getSegmentAtLocalPos( S32 x, S32 y, bool hit_past_end_of_line) +{ + // Find the cursor position at the requested local screen position + S32 offset = getDocIndexFromLocalCoord( x, y, FALSE, hit_past_end_of_line); + segment_set_t::iterator seg_iter = getSegIterContaining(offset); + if (seg_iter != mSegments.end()) + { + return *seg_iter; + } + else + { + return LLTextSegmentPtr(); + } +} + +void LLTextBase::createUrlContextMenu(S32 x, S32 y, const std::string &in_url) +{ + // work out the XUI menu file to use for this url + LLUrlMatch match; + std::string url = in_url; + if (! LLUrlRegistry::instance().findUrl(url, match)) + { + return; + } + + std::string xui_file = match.getMenuName(); + if (xui_file.empty()) + { + return; + } + + // set up the callbacks for all of the potential menu items, N.B. we + // don't use const ref strings in callbacks in case url goes out of scope + LLUICtrl::CommitCallbackRegistry::ScopedRegistrar registrar; + registrar.add("Url.Open", boost::bind(&LLUrlAction::openURL, url)); + registrar.add("Url.OpenInternal", boost::bind(&LLUrlAction::openURLInternal, url)); + registrar.add("Url.OpenExternal", boost::bind(&LLUrlAction::openURLExternal, url)); + registrar.add("Url.Execute", boost::bind(&LLUrlAction::executeSLURL, url)); + registrar.add("Url.Teleport", boost::bind(&LLUrlAction::teleportToLocation, url)); + registrar.add("Url.ShowProfile", boost::bind(&LLUrlAction::showProfile, url)); + registrar.add("Url.ShowOnMap", boost::bind(&LLUrlAction::showLocationOnMap, url)); + registrar.add("Url.CopyLabel", boost::bind(&LLUrlAction::copyLabelToClipboard, url)); + registrar.add("Url.CopyUrl", boost::bind(&LLUrlAction::copyURLToClipboard, url)); + + // create and return the context menu from the XUI file + delete mPopupMenu; + mPopupMenu = LLUICtrlFactory::getInstance()->createFromFile<LLContextMenu>(xui_file, LLMenuGL::sMenuContainer, + LLMenuHolderGL::child_registry_t::instance()); + if (mPopupMenu) + { + mPopupMenu->show(x, y); + LLMenuGL::showPopup(this, mPopupMenu, x, y); + } +} + +void LLTextBase::setText(const LLStringExplicit &utf8str, const LLStyle::Params& input_params) +{ + // clear out the existing text and segments + getViewModel()->setDisplay(LLWStringUtil::null); + + clearSegments(); +// createDefaultSegment(); + + deselect(); + + // append the new text (supports Url linking) + std::string text(utf8str); + LLStringUtil::removeCRLF(text); + + // appendText modifies mCursorPos... + appendText(text, false, input_params); + // ...so move cursor to top after appending text + startOfDoc(); + + onValueChange(0, getLength()); +} + +//virtual +std::string LLTextBase::getText() const +{ + return getViewModel()->getValue().asString(); +} + +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::replaceUrlLabel, this, _1, _2)) ) + { + start = match.getStart(); + end = match.getEnd()+1; + + LLStyle::Params link_params = style_params; + link_params.color = match.getColor(); + link_params.readonly_color = match.getColor(); + link_params.font.style("UNDERLINE"); + link_params.link_href = match.getUrl(); + + // 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); + } + + // inserts an avatar icon preceding the Url if appropriate + LLTextUtil::processUrlMatch(&match,this); + + // output the styled Url (unless we've been asked to suppress hyperlinking) + if (match.isLinkDisabled()) + { + appendAndHighlightText(match.getLabel(), part, style_params); + } + else + { + appendAndHighlightText(match.getLabel(), part, link_params, match.underlineOnHoverOnly()); + + // 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, bool underline_on_hover_only) +{ + // 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; + if(underline_on_hover_only) + { + highlight_params.font.style("NORMAL"); + LLStyleConstSP normal_sp(new LLStyle(highlight_params)); + segmentp = new LLOnHoverChangeableTextSegment(sp, normal_sp, cur_length, cur_length + wide_text.size(), *this); + } + else + { + 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)); + if (underline_on_hover_only) + { + LLStyle::Params normal_style_params(style_params); + normal_style_params.font.style("NORMAL"); + LLStyleConstSP normal_sp(new LLStyle(normal_style_params)); + segments.push_back(new LLOnHoverChangeableTextSegment(sp, normal_sp, segment_start, segment_end, *this )); + } + else + { + 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, bool underline_on_hover_only) +{ + 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, underline_on_hover_only); + } + 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, underline_on_hover_only); +} + + +void LLTextBase::replaceUrlLabel(const std::string &url, + const std::string &label) +{ + // 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->isLink() && 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; + } + + // 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 + //FIXME: consider use of getWordWrap() instead + doc_rect.mRight = mScroller + ? llmax(mVisibleTextRect.getWidth(), mTextBoundingRect.mRight) + : mVisibleTextRect.getWidth(); + + if (!mScroller) + { + // push doc rect to top of text widget + doc_rect.translate(0, mVisibleTextRect.getHeight() - doc_rect.mTop); + } + + 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; + } +} + +boost::signals2::connection LLTextBase::setURLClickedCallback(const commit_signal_t::slot_type& cb) +{ + if (!mURLClickSignal) + { + mURLClickSignal = new commit_signal_t(); + } + return mURLClickSignal->connect(cb); +} + +// +// 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, + mStyle->getSelectedColor().get(), + 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; +} + +// +// LLOnHoverChangeableTextSegment +// + +LLOnHoverChangeableTextSegment::LLOnHoverChangeableTextSegment( LLStyleConstSP style, LLStyleConstSP normal_style, S32 start, S32 end, LLTextBase& editor ): + LLNormalTextSegment(normal_style, start, end, editor), + mHoveredStyle(style), + mNormalStyle(normal_style){} + +/*virtual*/ +F32 LLOnHoverChangeableTextSegment::draw(S32 start, S32 end, S32 selection_start, S32 selection_end, const LLRect& draw_rect) +{ + F32 result = LLNormalTextSegment::draw(start, end, selection_start, selection_end, draw_rect); + if (end == mEnd - mStart) + { + mStyle = mNormalStyle; + } + return result; +} + +/*virtual*/ +BOOL LLOnHoverChangeableTextSegment::handleHover(S32 x, S32 y, MASK mask) +{ + mStyle = mHoveredStyle; + return LLNormalTextSegment::handleHover(x, y, mask); +} + + +// +// 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; +} + |