#ifndef CanvasSurface_h
#define CanvasSurface_h
#include "AffineTransform.h"
#include "IntSize.h"
#include <wtf/OwnPtr.h>
#include <wtf/Noncopyable.h>
namespace WebCore {
class AffineTransform;
class FloatPoint;
class FloatRect;
class FloatSize;
class GraphicsContext;
class ImageBuffer;
class IntPoint;
class String;
class CSSStyleSelector;
class RenderBox;
class RenderStyle;
class SecurityOrigin;
typedef int ExceptionCode;
class CanvasSurface : public Noncopyable {
public:
CanvasSurface(float pageScaleFactor, float maximumDecodedImageSize);
virtual ~CanvasSurface();
int width() const { return m_size.width(); }
int height() const { return m_size.height(); }
String toDataURL(const String& mimeType, ExceptionCode&);
const IntSize& size() const { return m_size; }
virtual void willDraw(const FloatRect&);
GraphicsContext* drawingContext() const;
ImageBuffer* buffer() const;
IntRect convertLogicalToDevice(const FloatRect&) const;
IntSize convertLogicalToDevice(const FloatSize&) const;
IntPoint convertLogicalToDevice(const FloatPoint&) const;
void setOriginTainted() { m_originClean = false; }
bool originClean() const { return m_originClean; }
AffineTransform baseTransform() const;
const SecurityOrigin& securityOrigin() const;
RenderBox* renderBox() const;
RenderStyle* computedStyle();
CSSStyleSelector* styleSelector();
void setMaxiumDecodedImageSize(float maximumDecodedImageSize) { m_maximumDecodedImageSize = maximumDecodedImageSize; }
float maximumDecodedImageSize() { return m_maximumDecodedImageSize; }
virtual void createdImageBuffer(size_t) const { }
protected:
void setSurfaceSize(const IntSize&);
bool hasCreatedImageBuffer() const { return m_hasCreatedImageBuffer; }
static const int DefaultWidth;
static const int DefaultHeight;
private:
void createImageBuffer() const;
static const float MaxCanvasArea;
IntSize m_size;
float m_pageScaleFactor;
bool m_originClean;
float m_maximumDecodedImageSize;
mutable bool m_hasCreatedImageBuffer;
mutable OwnPtr<ImageBuffer> m_imageBuffer;
};
}
#endif