xref: /aoo4110/main/canvas/source/cairo/cairo_cairo.hxx (revision b1cdbd2c)

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 * to you under the Apache License, Version 2.0 (the
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#ifndef _CAIROCANVAS_CAIRO_HXX
#define _CAIROCANVAS_CAIRO_HXX

#include <sal/config.h>
#include <boost/shared_ptr.hpp>

struct SystemEnvData;
struct BitmapSystemData;
struct SystemGraphicsData;
class  VirtualDevice;
class  OutputDevice;
class  Window;
class  Size;

#include <cairo.h>  //cannot be inside a namespace, otherwise Quartz fails to compile.

namespace cairo {
	typedef cairo_t Cairo;
	typedef cairo_matrix_t Matrix;
	typedef cairo_format_t Format;
	typedef cairo_content_t Content;
	typedef cairo_pattern_t Pattern;

    typedef boost::shared_ptr<cairo_surface_t> CairoSurfaceSharedPtr;
    typedef boost::shared_ptr<Cairo>           CairoSharedPtr;

    const SystemEnvData* GetSysData(const Window *pOutputWindow);

    /** Cairo surface interface

        For each cairo-supported platform, there's an implementation of
        this interface
     */
	struct Surface
    {
	public:
        virtual ~Surface() {}

        // Query methods
		virtual CairoSharedPtr getCairo() const = 0;
		virtual CairoSurfaceSharedPtr getCairoSurface() const = 0;
		virtual boost::shared_ptr<Surface> getSimilar( Content aContent, int width, int height ) const = 0;

        /// factory for VirDev on this surface
        virtual boost::shared_ptr<VirtualDevice> createVirtualDevice() const = 0;

        /// Resize the surface (possibly destroying content)
		virtual void Resize( int width, int height ) = 0;

        /// Flush all pending output to surface
        virtual void flush() const = 0;
	};

    typedef boost::shared_ptr<Surface> SurfaceSharedPtr;

    /// Create Surface from given cairo surface
    SurfaceSharedPtr createSurface( const CairoSurfaceSharedPtr& rSurface );
    /// Create surface with given dimensions
    SurfaceSharedPtr createSurface( const OutputDevice& rRefDevice,
                                    int x, int y, int width, int height );
    /// Create Surface for given bitmap data
    SurfaceSharedPtr createBitmapSurface( const OutputDevice& rRefDevice,
                                          const BitmapSystemData& rData,
                                          const Size&             rSize );

    /// Check whether cairo will work on given window
    bool IsCairoWorking( OutputDevice* );
}

#endif