xref: /aoo41x/main/canvas/source/cairo/cairo_canvasbitmap.hxx (revision 91c99ff4)

/**************************************************************
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/



#ifndef _CAIROCANVAS_CANVASBITMAP_HXX
#define _CAIROCANVAS_CANVASBITMAP_HXX

#include <cppuhelper/compbase4.hxx>

#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/rendering/XBitmapCanvas.hpp>
#include <com/sun/star/rendering/XIntegerBitmap.hpp>
#include <com/sun/star/beans/XFastPropertySet.hpp>
#include <comphelper/uno3.hxx>

#include <basegfx/vector/b2isize.hxx>

#include <boost/shared_ptr.hpp>

#include <canvas/base/integerbitmapbase.hxx>

#include "cairo_cairo.hxx"
#include "cairo_canvashelper.hxx"
#include "cairo_repainttarget.hxx"
#include "cairo_spritecanvas.hxx"


/* Definition of CanvasBitmap class */

namespace cairocanvas
{
    typedef ::cppu::WeakComponentImplHelper4< ::com::sun::star::rendering::XBitmapCanvas,
											  ::com::sun::star::rendering::XIntegerBitmap,
                                              ::com::sun::star::lang::XServiceInfo,
                                              ::com::sun::star::beans::XFastPropertySet >  	CanvasBitmapBase_Base;
	class CanvasBitmapSpriteSurface_Base :
        public ::canvas::BaseMutexHelper<CanvasBitmapBase_Base>,
        public SurfaceProvider
    {
    };

    typedef ::canvas::IntegerBitmapBase<
          CanvasBitmapSpriteSurface_Base,
          CanvasHelper,
          ::osl::MutexGuard,
          ::cppu::OWeakObject >							CanvasBitmap_Base;

    class CanvasBitmap : public CanvasBitmap_Base,
						 public RepaintTarget
    {
    public:
        /** Create a canvas bitmap for the given surface

            @param rSize
            Size of the bitmap

            @param rDevice
            Reference device, with which bitmap should be compatible
		*/
        CanvasBitmap( const ::basegfx::B2ISize& rSize,
                      const SurfaceProviderRef& rDevice,
                      ::com::sun::star::rendering::XGraphicDevice* pDevice,
                      bool                      bHasAlpha );

        /// Dispose all internal references
        virtual void SAL_CALL disposing();

		// Forwarding the XComponent implementation to the
        // cppu::ImplHelper templated base
        //                                    Classname     Base doing refcounting        Base implementing the XComponent interface
        //                                       |                 |                            |
        //                                       V                 V                            V
        DECLARE_UNO3_XCOMPONENT_AGG_DEFAULTS( CanvasBitmap, CanvasBitmapBase_Base, ::cppu::WeakComponentImplHelperBase );

        // XServiceInfo
        virtual ::rtl::OUString SAL_CALL getImplementationName(  ) throw (::com::sun::star::uno::RuntimeException);
        virtual sal_Bool SAL_CALL supportsService( const ::rtl::OUString& ServiceName ) throw (::com::sun::star::uno::RuntimeException);
        virtual ::com::sun::star::uno::Sequence< ::rtl::OUString > SAL_CALL getSupportedServiceNames(  ) throw (::com::sun::star::uno::RuntimeException);

        // SurfaceProvider
		virtual SurfaceSharedPtr getSurface();
		virtual SurfaceSharedPtr createSurface( const ::basegfx::B2ISize& rSize, Content aContent = CAIRO_CONTENT_COLOR_ALPHA );
		virtual SurfaceSharedPtr createSurface( ::Bitmap& rBitmap );
		virtual SurfaceSharedPtr changeSurface( bool bHasAlpha, bool bCopyContent );
		virtual OutputDevice* getOutputDevice();

        // RepaintTarget
        virtual bool repaint( const SurfaceSharedPtr&                         pSurface,
							  const ::com::sun::star::rendering::ViewState&	  viewState,
							  const ::com::sun::star::rendering::RenderState& renderState );

        // XFastPropertySet
        // used to retrieve BitmapEx pointer or X Pixmap handles for this bitmap
        // handle values have these meanings:
        // 0 ... get pointer to BitmapEx
        // 1 ... get X pixmap handle to rgb content
        // 2 ... get X pitmap handle to alpha mask
        // returned any contains either BitmapEx pointer or array of three Any value
        //     1st a bool value: true - free the pixmap after used by XFreePixmap, false do nothing, the pixmap is used internally in the canvas
        //     2nd the pixmap handle
        //     3rd the pixmap depth
        virtual ::com::sun::star::uno::Any SAL_CALL getFastPropertyValue(sal_Int32 nHandle)  throw (::com::sun::star::uno::RuntimeException);
        virtual void SAL_CALL setFastPropertyValue(sal_Int32, const ::com::sun::star::uno::Any&)  throw (::com::sun::star::uno::RuntimeException) {}

    private:
        SurfaceProviderRef        mpSurfaceProvider;
		::cairo::SurfaceSharedPtr mpBufferSurface;
		::cairo::CairoSharedPtr   mpBufferCairo;

        const ::basegfx::B2ISize  maSize;
		const bool                mbHasAlpha;
    };
}

#endif /* _CAIROCANVAS_CANVASBITMAP_HXX */