render_cacheimage.h

monqueror一个很具有参考价值的源玛

/*
 * This file impliments the abstract graphic interface for khtml
 */
#ifndef		_RENDER_IMAGECACHE_H_
#define 	_RENDER_IMAGECACHE_H_

#define URL_STRINGMAXLENGTH 256

// plateform we possiblelly surpport
#define		_PLATFORM_MINIGUI	1
#define		_PLATFORM_QT		2
#define		_PLATFORM_WINDOWS	3

#define		_CURRENT_PLATFORM	_PLATFORM_MINIGUI

#if( _CURRENT_PLATFORM == _PLATFORM_MINIGUI )
#include <minigui/common.h>
#include <minigui/minigui.h>
#include <minigui/gdi.h>
#include <minigui/window.h>
#include <minigui/control.h>

#define		MSG_USER_MOVE_CHILD		(MSG_USER+0x100)

#endif

// for we must impliment string ourself
// so we currently use such as QString instead
#define MGString 		QString
#define MGChar 			QChar
#define MGPointArray	QPointArray
#define	MGURL			KRUL

class MGPixmap;
class MGSize;
class MGColor;
class MGFont;
class MGFontInfo;
class MGRect;
class MGPainter;
class MGFontMetrics;
class MGBitmap;
class MGPoint;
class MGBrush;
class MGWMatrix;
class MGColorGroup;
class MGHTMLView;
class MGWidget;

namespace DOM
{
    class CSSStyleSheetImpl;
    class DOMString;
};

// #include "loader.h"
#include "kurl.h"
#include "../css/css_valueimpl.h"
//#include "../css/css_ruleimpl.h"
namespace khtml {

class CachedObject;
class MGDocLoader;
class MGCachedImage;
class RenderImage;
class MGImageLoader;
class MGCachedImage// : public khtml::CachedObject
{
public:
	MGCachedImage( unsigned char *url );
	MGCachedImage(unsigned char *url ,char TempName[]);
	MGCachedImage(unsigned char *url, bool reload, MGPainter* p);
	virtual ~MGCachedImage();

	const MGPixmap& tiled_pixmap( const MGColor& c ) const;
	const MGPixmap& pixmap() const;
	MGSize pixmap_size() const;
	MGRect valid_rect() const;
	bool isTransparent() const;
	
	void ref() { m_ref++; }
	void deref() { m_ref--; if( m_ref <= 0 ) delete this; }

	bool LoadDataFromTempFile( char TempName[]);
			
protected:
	friend class RenderImage;
	DOM::DOMString m_URL;
	DOM::DOMString m_baseURL;
#if 0
	
	MGPixmap* bg;
	MGPixmap* p;
#endif	
public:	
	MGPixmap* bg;
	MGPixmap* p;
	bool m_bIsRequested;
private:
	int m_ref;
};

	
}; // namespace
#endif