diff options
Diffstat (limited to 'indra/llui/lltextbase.cpp')
-rw-r--r-- | indra/llui/lltextbase.cpp | 197 |
1 files changed, 110 insertions, 87 deletions
diff --git a/indra/llui/lltextbase.cpp b/indra/llui/lltextbase.cpp index fcfdd64e6a..82a3c01c6d 100644 --- a/indra/llui/lltextbase.cpp +++ b/indra/llui/lltextbase.cpp @@ -361,95 +361,113 @@ void LLTextBase::onValueChange(S32 start, S32 end) { } - -// Draws the black box behind the selected text -void LLTextBase::drawSelectionBackground() +std::vector<LLRect> LLTextBase::getSelctionRects() { - // Draw selection even if we don't have keyboard focus for search/replace - if( hasSelection() && !mLineInfoList.empty()) - { - std::vector<LLRect> selection_rects; + // Nor supposed to be called without selection + llassert(hasSelection()); + llassert(!mLineInfoList.empty()); - S32 selection_left = llmin( mSelectionStart, mSelectionEnd ); - S32 selection_right = llmax( mSelectionStart, mSelectionEnd ); + std::vector<LLRect> selection_rects; - // Skip through the lines we aren't drawing. - LLRect content_display_rect = getVisibleDocumentRect(); + S32 selection_left = llmin(mSelectionStart, mSelectionEnd); + S32 selection_right = llmax(mSelectionStart, mSelectionEnd); - // 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::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), content_display_rect.mBottom, compare_top()); + // Skip through the lines we aren't drawing. + LLRect content_display_rect = getVisibleDocumentRect(); - bool done = false; + // 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::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), content_display_rect.mBottom, compare_top()); - // 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; + bool done = false; - S32 segment_line_start = segmentp->getStart() + segment_offset; - S32 segment_line_end = llmin(segmentp->getEnd(), line_iter->mDocIndexEnd); + // 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); - if (segment_line_start > segment_line_end) break; + // Use F32 otherwise a string of multiple segments + // will accumulate a large error + F32 left_precise = line_iter->mRect.mLeft; + F32 right_precise = line_iter->mRect.mLeft; - S32 segment_width = 0; - S32 segment_height = 0; + for (; segment_iter != mSegments.end(); ++segment_iter, segment_offset = 0) + { + LLTextSegmentPtr segmentp = *segment_iter; - // 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; - } + S32 segment_line_start = segmentp->getStart() + segment_offset; + S32 segment_line_end = llmin(segmentp->getEnd(), line_iter->mDocIndexEnd); - // 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; + if (segment_line_start > segment_line_end) break; - break; - } - } - selection_rects.push_back(selection_rect); - } - } + F32 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->getDimensionsF32(segment_offset, num_chars, segment_width, segment_height); + left_precise += 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->getDimensionsF32(segment_offset, num_chars, segment_width, segment_height); + right_precise += segment_width; + } + // else if selection ends on current segment... + else + { + S32 num_chars = selection_right - segment_line_start; + segmentp->getDimensionsF32(segment_offset, num_chars, segment_width, segment_height); + right_precise += segment_width; + + break; + } + } + + LLRect selection_rect; + selection_rect.mLeft = left_precise; + selection_rect.mRight = right_precise; + selection_rect.mBottom = line_iter->mRect.mBottom; + selection_rect.mTop = line_iter->mRect.mTop; + + selection_rects.push_back(selection_rect); + } + } + + return selection_rects; +} + +// 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 = getSelctionRects(); // 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); + LLRect content_display_rect = getVisibleDocumentRect(); for (std::vector<LLRect>::iterator rect_it = selection_rects.begin(); rect_it != selection_rects.end(); @@ -2557,7 +2575,7 @@ S32 LLTextBase::getDocIndexFromLocalCoord( S32 local_x, S32 local_y, BOOL round, } S32 pos = getLength(); - S32 start_x = line_iter->mRect.mLeft + doc_rect.mLeft; + F32 start_x = line_iter->mRect.mLeft + doc_rect.mLeft; segment_set_t::iterator line_seg_iter; S32 line_seg_offset; @@ -2569,8 +2587,9 @@ S32 LLTextBase::getDocIndexFromLocalCoord( S32 local_x, S32 local_y, BOOL round, 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); + F32 text_width; + S32 text_height; + bool newline = segmentp->getDimensionsF32(line_seg_offset, segment_line_length, text_width, text_height); if(newline) { @@ -2590,8 +2609,9 @@ S32 LLTextBase::getDocIndexFromLocalCoord( S32 local_x, S32 local_y, BOOL round, S32 offset; if (!segmentp->canEdit()) { - S32 segment_width, segment_height; - segmentp->getDimensions(0, segmentp->getEnd() - segmentp->getStart(), segment_width, segment_height); + F32 segment_width; + S32 segment_height; + segmentp->getDimensionsF32(0, segmentp->getEnd() - segmentp->getStart(), segment_width, segment_height); if (round && local_x - start_x > segment_width / 2) { offset = segment_line_length; @@ -2638,17 +2658,11 @@ LLRect LLTextBase::getDocRectFromDocIndex(S32 pos) const return LLRect(); } - LLRect doc_rect; - // clamp pos to valid values pos = llclamp(pos, 0, mLineInfoList.back().mDocIndexEnd - 1); 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; @@ -2656,6 +2670,8 @@ LLRect LLTextBase::getDocRectFromDocIndex(S32 pos) const getSegmentAndOffset(line_iter->mDocIndexStart, &line_seg_iter, &line_seg_offset); getSegmentAndOffset(pos, &cursor_seg_iter, &cursor_seg_offset); + F32 doc_left_precise = line_iter->mRect.mLeft; + while(line_seg_iter != mSegments.end()) { const LLTextSegmentPtr segmentp = *line_seg_iter; @@ -2663,18 +2679,20 @@ LLRect LLTextBase::getDocRectFromDocIndex(S32 pos) const 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; + F32 segment_width; + S32 segment_height; + segmentp->getDimensionsF32(line_seg_offset, cursor_seg_offset - line_seg_offset, segment_width, segment_height); + doc_left_precise += 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; + F32 segment_width; + S32 segment_height; + segmentp->getDimensionsF32(line_seg_offset, (segmentp->getEnd() - segmentp->getStart()) - line_seg_offset, segment_width, segment_height); + doc_left_precise += segment_width; // offset will be 0 for all segments after the first line_seg_offset = 0; // go to next text segment on this line @@ -2682,6 +2700,11 @@ LLRect LLTextBase::getDocRectFromDocIndex(S32 pos) const } } + LLRect doc_rect; + doc_rect.mLeft = doc_left_precise; + doc_rect.mBottom = line_iter->mRect.mBottom; + doc_rect.mTop = line_iter->mRect.mTop; + // set rect to 0 width doc_rect.mRight = doc_rect.mLeft; |