Move painting code for tables into *Paint classes.

Source/core/paint/TablePainter.cpp

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+#include "core/paint/TablePainter.h"
+
+#include "core/paint/BoxPainter.h"
+#include "core/rendering/GraphicsContextAnnotator.h"
+#include "core/rendering/PaintInfo.h"
+#include "core/rendering/RenderTable.h"
+#include "core/rendering/RenderTableSection.h"
+#include "core/rendering/style/CollapsedBorderValue.h"
+
+namespace blink {
+
+void TablePainter::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
+{
+    ANNOTATE_GRAPHICS_CONTEXT(paintInfo, &m_renderTable);
+
+    LayoutPoint adjustedPaintOffset = paintOffset + m_renderTable.location();
+
+    PaintPhase paintPhase = paintInfo.phase;
+
+    if (!m_renderTable.isDocumentElement()) {
+        LayoutRect overflowBox = m_renderTable.visualOverflowRect();
+        m_renderTable.flipForWritingMode(overflowBox);
+        overflowBox.moveBy(adjustedPaintOffset);
+        if (!overflowBox.intersects(paintInfo.rect))
+            return;
+    }
+
+    bool pushedClip = m_renderTable.pushContentsClip(paintInfo, adjustedPaintOffset, ForceContentsClip);
+    paintObject(paintInfo, adjustedPaintOffset);
+    if (pushedClip)
+        m_renderTable.popContentsClip(paintInfo, paintPhase, adjustedPaintOffset);
+}
+
+void TablePainter::paintObject(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
+{
+    PaintPhase paintPhase = paintInfo.phase;
+    if ((paintPhase == PaintPhaseBlockBackground || paintPhase == PaintPhaseChildBlockBackground) && m_renderTable.hasBoxDecorationBackground() && m_renderTable.style()->visibility() == VISIBLE)
+        paintBoxDecorationBackground(paintInfo, paintOffset);
+
+    if (paintPhase == PaintPhaseMask) {
+        m_renderTable.paintMask(paintInfo, paintOffset);
+        return;
+    }
+
+    // We're done. We don't bother painting any children.
+    if (paintPhase == PaintPhaseBlockBackground)
+        return;
+
+    // We don't paint our own background, but we do let the kids paint their backgrounds.
+    if (paintPhase == PaintPhaseChildBlockBackgrounds)
+        paintPhase = PaintPhaseChildBlockBackground;
+
+    PaintInfo info(paintInfo);
+    info.phase = paintPhase;
+    info.updatePaintingRootForChildren(&m_renderTable);
+
+    for (RenderObject* child = m_renderTable.firstChild(); child; child = child->nextSibling()) {
+        if (child->isBox() && !toRenderBox(child)->hasSelfPaintingLayer() && (child->isTableSection() || child->isTableCaption())) {
+            LayoutPoint childPoint = m_renderTable.flipForWritingModeForChild(toRenderBox(child), paintOffset);
+            child->paint(info, childPoint);
+        }
+    }
+
+    if (m_renderTable.collapseBorders() && paintPhase == PaintPhaseChildBlockBackground && m_renderTable.style()->visibility() == VISIBLE) {
+        m_renderTable.recalcCollapsedBorders();
+        // Using our cached sorted styles, we then do individual passes,
+        // painting each style of border from lowest precedence to highest precedence.
+        info.phase = PaintPhaseCollapsedTableBorders;
+        RenderTable::CollapsedBorderValues collapsedBorders = m_renderTable.collapsedBorders();
+        size_t count = collapsedBorders.size();
+        for (size_t i = 0; i < count; ++i) {
+            // FIXME: pass this value into children rather than storing temporarily on the RenderTable object.
+            m_renderTable.setCurrentBorderValue(&collapsedBorders[i]);
+            for (RenderTableSection* section = m_renderTable.bottomSection(); section; section = m_renderTable.sectionAbove(section)) {
+                LayoutPoint childPoint = m_renderTable.flipForWritingModeForChild(section, paintOffset);
+                section->paint(info, childPoint);
+            }
+        }
+        m_renderTable.setCurrentBorderValue(0);
+    }
+
+    // Paint outline.
+    if ((paintPhase == PaintPhaseOutline || paintPhase == PaintPhaseSelfOutline) && m_renderTable.style()->hasOutline() && m_renderTable.style()->visibility() == VISIBLE)
+        m_renderTable.paintOutline(paintInfo, LayoutRect(paintOffset, m_renderTable.size()));
+}
+
+void TablePainter::paintBoxDecorationBackground(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
+{
+    if (!paintInfo.shouldPaintWithinRoot(&m_renderTable))
+        return;
+
+    LayoutRect rect(paintOffset, m_renderTable.size());
+    m_renderTable.subtractCaptionRect(rect);
+    BoxPainter(m_renderTable).paintBoxDecorationBackgroundWithRect(paintInfo, paintOffset, rect);
+}
+
+void TablePainter::paintMask(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
+{
+    if (m_renderTable.style()->visibility() != VISIBLE || paintInfo.phase != PaintPhaseMask)
+        return;
+
+    LayoutRect rect(paintOffset, m_renderTable.size());
+    m_renderTable.subtractCaptionRect(rect);
+
+    BoxPainter(m_renderTable).paintMaskImages(paintInfo, rect);
+}
+
+} // namespace blink