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/*
* Copyright (C) 2010, 2011 Nokia Corporation and/or its subsidiary(-ies)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "RenderDetailsMarker.h"
#include "GraphicsContext.h"
#include "HTMLNames.h"
#include "PaintInfo.h"
#include "RenderDetails.h"
#include "RenderSummary.h"
namespace WebCore {
using namespace HTMLNames;
RenderDetailsMarker::RenderDetailsMarker(RenderDetails* item)
: RenderBox(item->document())
, m_details(item)
{
setInline(true);
setReplaced(true);
}
void RenderDetailsMarker::destroy()
{
if (m_details)
m_details->markerDestroyed();
RenderBox::destroy();
}
int RenderDetailsMarker::lineHeight(bool firstLine, LineDirectionMode direction, LinePositionMode) const
{
return m_details->lineHeight(firstLine, direction, PositionOfInteriorLineBoxes);
}
int RenderDetailsMarker::baselinePosition(FontBaseline baselineType, bool firstLine, LineDirectionMode direction, LinePositionMode) const
{
return m_details->baselinePosition(baselineType, firstLine, direction, PositionOfInteriorLineBoxes);
}
void RenderDetailsMarker::computePreferredLogicalWidths()
{
ASSERT(preferredLogicalWidthsDirty());
m_minPreferredLogicalWidth = 2 * style()->fontMetrics().ascent() / 3;
m_maxPreferredLogicalWidth = m_minPreferredLogicalWidth;
setPreferredLogicalWidthsDirty(false);
}
void RenderDetailsMarker::layout()
{
ASSERT(needsLayout());
setLogicalWidth(minPreferredLogicalWidth());
setLogicalHeight(style()->fontMetrics().height());
setMarginStart(0);
setMarginEnd(style()->fontMetrics().ascent() - minPreferredLogicalWidth() + 1);
setNeedsLayout(false);
}
IntRect RenderDetailsMarker::getRelativeMarkerRect() const
{
IntRect relativeRect;
int bulletWidth = minPreferredLogicalWidth();
relativeRect = IntRect((logicalWidth() - bulletWidth) / 2, (logicalHeight() - bulletWidth) / 2, bulletWidth, bulletWidth);
if (!style()->isHorizontalWritingMode()) {
relativeRect = relativeRect.transposedRect();
relativeRect.setX(width() - relativeRect.x() - relativeRect.width());
}
return relativeRect;
}
bool RenderDetailsMarker::isOpen() const
{
return m_details && m_details->isOpen();
}
static Path createPath(const FloatPoint* path)
{
Path result;
result.moveTo(FloatPoint(path[0].x(), path[0].y()));
for (int i = 1; i < 4; ++i)
result.addLineTo(FloatPoint(path[i].x(), path[i].y()));
return result;
}
static Path createDownArrowPath()
{
FloatPoint points[4] = { FloatPoint(0.0f, 0.07f), FloatPoint(0.5f, 0.93f), FloatPoint(1.0f, 0.07f), FloatPoint(0.0f, 0.07f) };
return createPath(points);
}
static Path createUpArrowPath()
{
FloatPoint points[4] = { FloatPoint(0.0f, 0.93f), FloatPoint(0.5f, 0.07f), FloatPoint(1.0f, 0.93f), FloatPoint(0.0f, 0.93f) };
return createPath(points);
}
static Path createLeftArrowPath()
{
FloatPoint points[4] = { FloatPoint(1.0f, 0.0f), FloatPoint(0.14f, 0.5f), FloatPoint(1.0f, 1.0f), FloatPoint(1.0f, 0.0f) };
return createPath(points);
}
static Path createRightArrowPath()
{
FloatPoint points[4] = { FloatPoint(0.0f, 0.0f), FloatPoint(0.86f, 0.5f), FloatPoint(0.0f, 1.0f), FloatPoint(0.0f, 0.0f) };
return createPath(points);
}
RenderDetailsMarker::Orientation RenderDetailsMarker::orientation() const
{
switch (style()->writingMode()) {
case TopToBottomWritingMode:
if (style()->isLeftToRightDirection())
return isOpen() ? Down : Right;
return isOpen() ? Down : Left;
case RightToLeftWritingMode:
if (style()->isLeftToRightDirection())
return isOpen() ? Left : Down;
return isOpen() ? Left : Up;
case LeftToRightWritingMode:
if (style()->isLeftToRightDirection())
return isOpen() ? Right : Down;
return isOpen() ? Right : Up;
case BottomToTopWritingMode:
if (style()->isLeftToRightDirection())
return isOpen() ? Up : Right;
return isOpen() ? Up : Left;
}
return Right;
}
Path RenderDetailsMarker::getCanonicalPath() const
{
switch (orientation()) {
case Left: return createLeftArrowPath();
case Right: return createRightArrowPath();
case Up: return createUpArrowPath();
case Down: return createDownArrowPath();
}
return Path();
}
Path RenderDetailsMarker::getPath(const IntPoint& origin) const
{
IntRect rect = getRelativeMarkerRect();
Path result = getCanonicalPath();
result.transform(AffineTransform().scale(rect.width()));
result.translate(FloatSize(origin.x() + rect.x(), origin.y() + rect.y()));
return result;
}
void RenderDetailsMarker::paint(PaintInfo& paintInfo, int tx, int ty)
{
if (paintInfo.phase != PaintPhaseForeground || style()->visibility() != VISIBLE)
return;
IntPoint boxOrigin(tx + x(), ty + y());
IntRect overflowRect(visualOverflowRect());
overflowRect.move(boxOrigin.x(), boxOrigin.y());
overflowRect.inflate(maximalOutlineSize(paintInfo.phase));
if (!paintInfo.rect.intersects(overflowRect))
return;
const Color color(style()->visitedDependentColor(CSSPropertyColor));
paintInfo.context->setStrokeColor(color, style()->colorSpace());
paintInfo.context->setStrokeStyle(SolidStroke);
paintInfo.context->setStrokeThickness(1.0f);
paintInfo.context->setFillColor(color, style()->colorSpace());
paintInfo.context->fillPath(getPath(boxOrigin));
}
}
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