void TableSectionPainter::paintCollapsedBorders(const PaintInfo& paintInfo, const LayoutPoint& paintOffset, const CollapsedBorderValue& currentBorderValue)
{
if (!m_layoutTableSection.numRows() || !m_layoutTableSection.table()->columns().size())
return;
LayoutPoint adjustedPaintOffset = paintOffset + m_layoutTableSection.location();
BoxClipper boxClipper(m_layoutTableSection, paintInfo, adjustedPaintOffset, ForceContentsClip);
LayoutRect localPaintInvalidationRect = LayoutRect(paintInfo.rect);
localPaintInvalidationRect.moveBy(-adjustedPaintOffset);
LayoutRect tableAlignedRect = m_layoutTableSection.logicalRectForWritingModeAndDirection(localPaintInvalidationRect);
CellSpan dirtiedRows = m_layoutTableSection.dirtiedRows(tableAlignedRect);
CellSpan dirtiedColumns = m_layoutTableSection.dirtiedColumns(tableAlignedRect);
if (dirtiedColumns.start() >= dirtiedColumns.end())
return;
// Collapsed borders are painted from the bottom right to the top left so that precedence
// due to cell position is respected.
for (unsigned r = dirtiedRows.end(); r > dirtiedRows.start(); r--) {
unsigned row = r - 1;
for (unsigned c = dirtiedColumns.end(); c > dirtiedColumns.start(); c--) {
unsigned col = c - 1;
const LayoutTableSection::CellStruct& current = m_layoutTableSection.cellAt(row, col);
const LayoutTableCell* cell = current.primaryCell();
if (!cell || (row > dirtiedRows.start() && m_layoutTableSection.primaryCellAt(row - 1, col) == cell) || (col > dirtiedColumns.start() && m_layoutTableSection.primaryCellAt(row, col - 1) == cell))
continue;
LayoutPoint cellPoint = m_layoutTableSection.flipForWritingModeForChild(cell, adjustedPaintOffset);
TableCellPainter(*cell).paintCollapsedBorders(paintInfo, cellPoint, currentBorderValue);
}
}
}
void TableSectionPainter::paintObject(const PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
LayoutRect localPaintInvalidationRect = LayoutRect(paintInfo.rect);
localPaintInvalidationRect.moveBy(-paintOffset);
LayoutRect tableAlignedRect = m_layoutTableSection.logicalRectForWritingModeAndDirection(localPaintInvalidationRect);
CellSpan dirtiedRows = m_layoutTableSection.dirtiedRows(tableAlignedRect);
CellSpan dirtiedColumns = m_layoutTableSection.dirtiedColumns(tableAlignedRect);
HashSet<LayoutTableCell*> overflowingCells = m_layoutTableSection.overflowingCells();
if (dirtiedColumns.start() < dirtiedColumns.end()) {
if (!m_layoutTableSection.hasMultipleCellLevels() && !overflowingCells.size()) {
if (paintInfo.phase == PaintPhaseCollapsedTableBorders) {
// Collapsed borders are painted from the bottom right to the top left so that precedence
// due to cell position is respected.
for (unsigned r = dirtiedRows.end(); r > dirtiedRows.start(); r--) {
unsigned row = r - 1;
for (unsigned c = dirtiedColumns.end(); c > dirtiedColumns.start(); c--) {
unsigned col = c - 1;
LayoutTableSection::CellStruct& current = m_layoutTableSection.cellAt(row, col);
LayoutTableCell* cell = current.primaryCell();
if (!cell || (row > dirtiedRows.start() && m_layoutTableSection.primaryCellAt(row - 1, col) == cell) || (col > dirtiedColumns.start() && m_layoutTableSection.primaryCellAt(row, col - 1) == cell))
continue;
LayoutPoint cellPoint = m_layoutTableSection.flipForWritingModeForChild(cell, paintOffset);
TableCellPainter(*cell).paintCollapsedBorders(paintInfo, cellPoint);
}
}
} else {
// Draw the dirty cells in the order that they appear.
for (unsigned r = dirtiedRows.start(); r < dirtiedRows.end(); r++) {
LayoutTableRow* row = m_layoutTableSection.rowLayoutObjectAt(r);
if (row && !row->hasSelfPaintingLayer())
TableRowPainter(*row).paintOutlineForRowIfNeeded(paintInfo, paintOffset);
for (unsigned c = dirtiedColumns.start(); c < dirtiedColumns.end(); c++) {
LayoutTableSection::CellStruct& current = m_layoutTableSection.cellAt(r, c);
LayoutTableCell* cell = current.primaryCell();
if (!cell || (r > dirtiedRows.start() && m_layoutTableSection.primaryCellAt(r - 1, c) == cell) || (c > dirtiedColumns.start() && m_layoutTableSection.primaryCellAt(r, c - 1) == cell))
continue;
paintCell(cell, paintInfo, paintOffset);
}
}
}
} else {
// The overflowing cells should be scarce to avoid adding a lot of cells to the HashSet.
#if ENABLE(ASSERT)
unsigned totalRows = m_layoutTableSection.numRows();
unsigned totalCols = m_layoutTableSection.table()->columns().size();
ASSERT(overflowingCells.size() < totalRows * totalCols * gMaxAllowedOverflowingCellRatioForFastPaintPath);
#endif
// To make sure we properly paint invalidate the section, we paint invalidated all the overflowing cells that we collected.
Vector<LayoutTableCell*> cells;
copyToVector(overflowingCells, cells);
HashSet<LayoutTableCell*> spanningCells;
for (unsigned r = dirtiedRows.start(); r < dirtiedRows.end(); r++) {
LayoutTableRow* row = m_layoutTableSection.rowLayoutObjectAt(r);
if (row && !row->hasSelfPaintingLayer())
TableRowPainter(*row).paintOutlineForRowIfNeeded(paintInfo, paintOffset);
for (unsigned c = dirtiedColumns.start(); c < dirtiedColumns.end(); c++) {
LayoutTableSection::CellStruct& current = m_layoutTableSection.cellAt(r, c);
if (!current.hasCells())
continue;
for (unsigned i = 0; i < current.cells.size(); ++i) {
if (overflowingCells.contains(current.cells[i]))
continue;
if (current.cells[i]->rowSpan() > 1 || current.cells[i]->colSpan() > 1) {
if (!spanningCells.add(current.cells[i]).isNewEntry)
continue;
}
cells.append(current.cells[i]);
}
}
}
// Sort the dirty cells by paint order.
if (!overflowingCells.size())
std::stable_sort(cells.begin(), cells.end(), compareCellPositions);
else
std::sort(cells.begin(), cells.end(), compareCellPositionsWithOverflowingCells);
if (paintInfo.phase == PaintPhaseCollapsedTableBorders) {
for (unsigned i = cells.size(); i > 0; --i) {
LayoutPoint cellPoint = m_layoutTableSection.flipForWritingModeForChild(cells[i - 1], paintOffset);
TableCellPainter(*cells[i - 1]).paintCollapsedBorders(paintInfo, cellPoint);
}
} else {
for (unsigned i = 0; i < cells.size(); ++i)
paintCell(cells[i], paintInfo, paintOffset);
}
}
}
}