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/*
* Copyright (C) 2012 Adobe Systems Incorporated. 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 THE COPYRIGHT HOLDER "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 THE COPYRIGHT HOLDER 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.
*/
#ifndef ShapeValue_h
#define ShapeValue_h
#include "core/fetch/ImageResource.h"
#include "core/rendering/style/BasicShapes.h"
#include "core/rendering/style/DataEquivalency.h"
#include "core/rendering/style/RenderStyleConstants.h"
#include "core/rendering/style/StyleImage.h"
#include "wtf/PassRefPtr.h"
namespace blink {
class ShapeValue : public RefCounted<ShapeValue> {
public:
enum ShapeValueType {
// The Auto value is defined by a null ShapeValue*
Shape,
Box,
Image
};
static PassRefPtr<ShapeValue> createShapeValue(PassRefPtr<BasicShape> shape, CSSBoxType cssBox)
{
return adoptRef(new ShapeValue(shape, cssBox));
}
static PassRefPtr<ShapeValue> createBoxShapeValue(CSSBoxType cssBox)
{
return adoptRef(new ShapeValue(cssBox));
}
static PassRefPtr<ShapeValue> createImageValue(PassRefPtr<StyleImage> image)
{
return adoptRef(new ShapeValue(image));
}
ShapeValueType type() const { return m_type; }
BasicShape* shape() const { return m_shape.get(); }
StyleImage* image() const { return m_image.get(); }
bool isImageValid() const
{
if (!image())
return false;
if (image()->isImageResource() || image()->isImageResourceSet())
return image()->cachedImage() && image()->cachedImage()->hasImage();
return image()->isGeneratedImage();
}
void setImage(PassRefPtr<StyleImage> image)
{
ASSERT(type() == Image);
if (m_image != image)
m_image = image;
}
CSSBoxType cssBox() const { return m_cssBox; }
bool operator==(const ShapeValue& other) const;
private:
ShapeValue(PassRefPtr<BasicShape> shape, CSSBoxType cssBox)
: m_type(Shape)
, m_shape(shape)
, m_cssBox(cssBox)
{
}
ShapeValue(ShapeValueType type)
: m_type(type)
, m_cssBox(BoxMissing)
{
}
ShapeValue(PassRefPtr<StyleImage> image)
: m_type(Image)
, m_image(image)
, m_cssBox(ContentBox)
{
}
ShapeValue(CSSBoxType cssBox)
: m_type(Box)
, m_cssBox(cssBox)
{
}
ShapeValueType m_type;
RefPtr<BasicShape> m_shape;
RefPtr<StyleImage> m_image;
CSSBoxType m_cssBox;
};
inline bool ShapeValue::operator==(const ShapeValue& other) const
{
if (type() != other.type())
return false;
switch (type()) {
case Shape:
return dataEquivalent(shape(), other.shape()) && cssBox() == other.cssBox();
case Box:
return cssBox() == other.cssBox();
case Image:
return dataEquivalent(image(), other.image());
}
ASSERT_NOT_REACHED();
return false;
}
}
#endif
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