LayoutRect InlineFlowBoxPainter::paintRectForImageStrip(const LayoutPoint& paintOffset, const LayoutSize& frameSize, TextDirection direction) const { // We have a fill/border/mask image that spans multiple lines. // We need to adjust the offset by the width of all previous lines. // Think of background painting on inlines as though you had one long line, a single continuous // strip. Even though that strip has been broken up across multiple lines, you still paint it // as though you had one single line. This means each line has to pick up the background where // the previous line left off. LayoutUnit logicalOffsetOnLine = 0; LayoutUnit totalLogicalWidth; if (direction == LTR) { for (InlineFlowBox* curr = m_inlineFlowBox.prevLineBox(); curr; curr = curr->prevLineBox()) logicalOffsetOnLine += curr->logicalWidth(); totalLogicalWidth = logicalOffsetOnLine; for (InlineFlowBox* curr = &m_inlineFlowBox; curr; curr = curr->nextLineBox()) totalLogicalWidth += curr->logicalWidth(); } else { for (InlineFlowBox* curr = m_inlineFlowBox.nextLineBox(); curr; curr = curr->nextLineBox()) logicalOffsetOnLine += curr->logicalWidth(); totalLogicalWidth = logicalOffsetOnLine; for (InlineFlowBox* curr = &m_inlineFlowBox; curr; curr = curr->prevLineBox()) totalLogicalWidth += curr->logicalWidth(); } LayoutUnit stripX = paintOffset.x() - (m_inlineFlowBox.isHorizontal() ? logicalOffsetOnLine : LayoutUnit()); LayoutUnit stripY = paintOffset.y() - (m_inlineFlowBox.isHorizontal() ? LayoutUnit() : logicalOffsetOnLine); LayoutUnit stripWidth = m_inlineFlowBox.isHorizontal() ? totalLogicalWidth : frameSize.width(); LayoutUnit stripHeight = m_inlineFlowBox.isHorizontal() ? frameSize.height() : totalLogicalWidth; return LayoutRect(stripX, stripY, stripWidth, stripHeight); }
bool LineBoxList::hitTest(LayoutBoxModelObject* renderer, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction hitTestAction) const { if (hitTestAction != HitTestForeground) return false; ASSERT(renderer->isLayoutBlock() || (renderer->isLayoutInline() && renderer->hasLayer())); // The only way an inline could hit test like this is if it has a layer. // If we have no lines then we have no work to do. if (!firstLineBox()) return false; LayoutPoint point = locationInContainer.point(); LayoutRect rect(firstLineBox()->isHorizontal() ? IntRect(point.x(), point.y() - locationInContainer.topPadding(), 1, locationInContainer.topPadding() + locationInContainer.bottomPadding() + 1) : IntRect(point.x() - locationInContainer.leftPadding(), point.y(), locationInContainer.rightPadding() + locationInContainer.leftPadding() + 1, 1)); if (!anyLineIntersectsRect(renderer, rect, accumulatedOffset)) return false; // See if our root lines contain the point. If so, then we hit test // them further. Note that boxes can easily overlap, so we can't make any assumptions // based off positions of our first line box or our last line box. for (InlineFlowBox* curr = lastLineBox(); curr; curr = curr->prevLineBox()) { RootInlineBox& root = curr->root(); if (rangeIntersectsRect(renderer, curr->logicalTopVisualOverflow(root.lineTop()), curr->logicalBottomVisualOverflow(root.lineBottom()), rect, accumulatedOffset)) { bool inside = curr->nodeAtPoint(result, locationInContainer, accumulatedOffset, root.lineTop(), root.lineBottom()); if (inside) { renderer->updateHitTestResult(result, locationInContainer.point() - toLayoutSize(accumulatedOffset)); return true; } } } return false; }
bool RenderLineBoxList::hitTest(RenderBoxModelObject* renderer, const HitTestRequest& request, HitTestResult& result, int x, int y, int tx, int ty, HitTestAction hitTestAction) const { if (hitTestAction != HitTestForeground) return false; ASSERT(renderer->isRenderBlock() || (renderer->isRenderInline() && renderer->hasLayer())); // The only way an inline could hit test like this is if it has a layer. // If we have no lines then we have no work to do. if (!firstLineBox()) return false; // We can check the first box and last box and avoid hit testing if we don't // contain the point. This is a quick short-circuit that we can take to avoid walking any lines. // FIXME: This check is flawed in the following extremely obscure way: // if some line in the middle has a huge overflow, it might actually extend below the last line. if ((y >= ty + lastLineBox()->root()->bottomVisibleOverflow()) || (y < ty + firstLineBox()->root()->topVisibleOverflow())) return false; // See if our root lines contain the point. If so, then we hit test // them further. Note that boxes can easily overlap, so we can't make any assumptions // based off positions of our first line box or our last line box. for (InlineFlowBox* curr = lastLineBox(); curr; curr = curr->prevLineBox()) { if (y >= ty + curr->root()->topVisibleOverflow() && y < ty + curr->root()->bottomVisibleOverflow()) { bool inside = curr->nodeAtPoint(request, result, x, y, tx, ty); if (inside) { renderer->updateHitTestResult(result, IntPoint(x - tx, y - ty)); return true; } } } return false; }