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/*
* Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "GraphicsContext.h"
#if PLATFORM(CG)
#include "GraphicsContextPlatformPrivateCG.h"
#elif PLATFORM(CAIRO)
#include "GraphicsContextPlatformPrivateCairo.h"
#endif
#include "AffineTransform.h"
#include "NotImplemented.h"
#include "Path.h"
#include <wtf/MathExtras.h>
using namespace std;
namespace WebCore {
class SVGResourceImage;
void GraphicsContextPlatformPrivate::save()
{
if (!m_hdc)
return;
SaveDC(m_hdc);
}
void GraphicsContextPlatformPrivate::restore()
{
if (!m_hdc)
return;
RestoreDC(m_hdc, -1);
}
void GraphicsContextPlatformPrivate::clip(const FloatRect& clipRect)
{
if (!m_hdc)
return;
IntersectClipRect(m_hdc, clipRect.x(), clipRect.y(), clipRect.right(), clipRect.bottom());
}
void GraphicsContextPlatformPrivate::clip(const Path&)
{
notImplemented();
}
void GraphicsContextPlatformPrivate::scale(const FloatSize& size)
{
if (!m_hdc)
return;
XFORM xform;
xform.eM11 = size.width();
xform.eM12 = 0.0f;
xform.eM21 = 0.0f;
xform.eM22 = size.height();
xform.eDx = 0.0f;
xform.eDy = 0.0f;
ModifyWorldTransform(m_hdc, &xform, MWT_LEFTMULTIPLY);
}
static const double deg2rad = 0.017453292519943295769; // pi/180
void GraphicsContextPlatformPrivate::rotate(float degreesAngle)
{
float radiansAngle = degreesAngle * deg2rad;
float cosAngle = cosf(radiansAngle);
float sinAngle = sinf(radiansAngle);
XFORM xform;
xform.eM11 = cosAngle;
xform.eM12 = -sinAngle;
xform.eM21 = sinAngle;
xform.eM22 = cosAngle;
xform.eDx = 0.0f;
xform.eDy = 0.0f;
ModifyWorldTransform(m_hdc, &xform, MWT_LEFTMULTIPLY);
}
void GraphicsContextPlatformPrivate::translate(float x , float y)
{
if (!m_hdc)
return;
XFORM xform;
xform.eM11 = 1.0f;
xform.eM12 = 0.0f;
xform.eM21 = 0.0f;
xform.eM22 = 1.0f;
xform.eDx = x;
xform.eDy = y;
ModifyWorldTransform(m_hdc, &xform, MWT_LEFTMULTIPLY);
}
#if ENABLE(SVG)
GraphicsContext* contextForImage(SVGResourceImage*)
{
// FIXME: This should go in GraphicsContextCG.cpp
notImplemented();
return 0;
}
#endif
}
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