예제 #1
0
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);
        }
    }
}
예제 #2
0
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);
            }
        }
    }
}