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// 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/FieldsetPainter.h"
#include "core/paint/BoxDecorationData.h"
#include "core/paint/BoxPainter.h"
#include "core/paint/RenderDrawingRecorder.h"
#include "core/rendering/PaintInfo.h"
#include "core/rendering/RenderFieldset.h"
namespace blink {
void FieldsetPainter::paintBoxDecorationBackground(const PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
if (!paintInfo.shouldPaintWithinRoot(&m_renderFieldset))
return;
LayoutRect paintRect(paintOffset, m_renderFieldset.size());
RenderBox* legend = m_renderFieldset.findLegend();
if (!legend)
return BoxPainter(m_renderFieldset).paintBoxDecorationBackground(paintInfo, paintOffset);
// FIXME: We need to work with "rl" and "bt" block flow directions. In those
// cases the legend is embedded in the right and bottom borders respectively.
// https://bugs.webkit.org/show_bug.cgi?id=47236
if (m_renderFieldset.style()->isHorizontalWritingMode()) {
LayoutUnit yOff = (legend->location().y() > 0) ? LayoutUnit() : (legend->size().height() - m_renderFieldset.borderTop()) / 2;
paintRect.setHeight(paintRect.height() - yOff);
paintRect.setY(paintRect.y() + yOff);
} else {
LayoutUnit xOff = (legend->location().x() > 0) ? LayoutUnit() : (legend->size().width() - m_renderFieldset.borderLeft()) / 2;
paintRect.setWidth(paintRect.width() - xOff);
paintRect.setX(paintRect.x() + xOff);
}
RenderDrawingRecorder recorder(paintInfo.context, m_renderFieldset, paintInfo.phase, pixelSnappedIntRect(paintOffset, paintRect.size()));
if (recorder.canUseCachedDrawing())
return;
BoxDecorationData boxDecorationData(m_renderFieldset, paintInfo.context);
if (boxDecorationData.bleedAvoidance() == BackgroundBleedNone)
BoxPainter::paintBoxShadow(paintInfo, paintRect, m_renderFieldset.style(), Normal);
BoxPainter(m_renderFieldset).paintFillLayers(paintInfo, boxDecorationData.backgroundColor, m_renderFieldset.style()->backgroundLayers(), paintRect);
BoxPainter::paintBoxShadow(paintInfo, paintRect, m_renderFieldset.style(), Inset);
if (!boxDecorationData.hasBorder)
return;
// Create a clipping region around the legend and paint the border as normal
GraphicsContext* graphicsContext = paintInfo.context;
GraphicsContextStateSaver stateSaver(*graphicsContext);
// FIXME: We need to work with "rl" and "bt" block flow directions. In those
// cases the legend is embedded in the right and bottom borders respectively.
// https://bugs.webkit.org/show_bug.cgi?id=47236
if (m_renderFieldset.style()->isHorizontalWritingMode()) {
LayoutUnit clipTop = paintRect.y();
LayoutUnit clipHeight = max(static_cast<LayoutUnit>(m_renderFieldset.style()->borderTopWidth()), legend->size().height() - ((legend->size().height() - m_renderFieldset.borderTop()) / 2));
graphicsContext->clipOut(pixelSnappedIntRect(paintRect.x() + legend->location().x(), clipTop, legend->size().width(), clipHeight));
} else {
LayoutUnit clipLeft = paintRect.x();
LayoutUnit clipWidth = max(static_cast<LayoutUnit>(m_renderFieldset.style()->borderLeftWidth()), legend->size().width());
graphicsContext->clipOut(pixelSnappedIntRect(clipLeft, paintRect.y() + legend->location().y(), clipWidth, legend->size().height()));
}
BoxPainter::paintBorder(m_renderFieldset, paintInfo, paintRect, m_renderFieldset.style());
}
void FieldsetPainter::paintMask(const PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
if (m_renderFieldset.style()->visibility() != VISIBLE || paintInfo.phase != PaintPhaseMask)
return;
LayoutRect paintRect = LayoutRect(paintOffset, m_renderFieldset.size());
RenderBox* legend = m_renderFieldset.findLegend();
if (!legend)
return BoxPainter(m_renderFieldset).paintMask(paintInfo, paintOffset);
// FIXME: We need to work with "rl" and "bt" block flow directions. In those
// cases the legend is embedded in the right and bottom borders respectively.
// https://bugs.webkit.org/show_bug.cgi?id=47236
if (m_renderFieldset.style()->isHorizontalWritingMode()) {
LayoutUnit yOff = (legend->location().y() > 0) ? LayoutUnit() : (legend->size().height() - m_renderFieldset.borderTop()) / 2;
paintRect.expand(0, -yOff);
paintRect.move(0, yOff);
} else {
LayoutUnit xOff = (legend->location().x() > 0) ? LayoutUnit() : (legend->size().width() - m_renderFieldset.borderLeft()) / 2;
paintRect.expand(-xOff, 0);
paintRect.move(xOff, 0);
}
BoxPainter(m_renderFieldset).paintMaskImages(paintInfo, paintRect);
}
} // namespace blink
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