xref: /aoo41x/main/canvas/source/null/null_spritecanvashelper.hxx (revision cdf0e10c)

/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

#ifndef _NULLCANVAS_SPRITECANVASHELPER_HXX_
#define _NULLCANVAS_SPRITECANVASHELPER_HXX_

#include <com/sun/star/rendering/XSpriteCanvas.hpp>
#include <com/sun/star/rendering/XIntegerBitmap.hpp>

#include <canvas/spriteredrawmanager.hxx>

#include "null_canvashelper.hxx"

namespace basegfx
{
    class B2IRange;
}

namespace nullcanvas
{
    class SpriteCanvas;

    class SpriteCanvasHelper : public CanvasHelper
    {
    public:
        SpriteCanvasHelper();

        void init( ::canvas::SpriteRedrawManager& rManager,
                   SpriteCanvas&                  rDevice,
                   const ::basegfx::B2ISize&      rSize,
                   bool                           bHasAlpha );

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

        // XSpriteCanvas
        ::com::sun::star::uno::Reference<
  			::com::sun::star::rendering::XAnimatedSprite > 		createSpriteFromAnimation(
                const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XAnimation >& animation );

        ::com::sun::star::uno::Reference<
  			::com::sun::star::rendering::XAnimatedSprite > 		createSpriteFromBitmaps(
                const ::com::sun::star::uno::Sequence<
                	  ::com::sun::star::uno::Reference<
                			::com::sun::star::rendering::XBitmap > >& animationBitmaps,
                sal_Int8                                              interpolationMode );

        ::com::sun::star::uno::Reference<
  			::com::sun::star::rendering::XCustomSprite > 		createCustomSprite(
                const ::com::sun::star::geometry::RealSize2D& spriteSize );

        ::com::sun::star::uno::Reference<
  			::com::sun::star::rendering::XSprite > 				createClonedSprite(
                const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XSprite >& original );

        /** Actually perform the screen update

            @param rCurrArea
            Current window area in absolute screen coordinates

        	@param bUpdateAll
            sal_True, if everything must be updated, not only changed
            sprites

            @param io_bSurfaceDirty
            In/out parameter, whether backbuffer surface is dirty (if
            yes, we're performing a full update, anyway)
         */
        sal_Bool updateScreen( const ::basegfx::B2IRange& rCurrArea,
                               sal_Bool                   bUpdateAll,
                               bool&                      io_bSurfaceDirty );


        // SpriteRedrawManager functor calls
        // -------------------------------------------------

        /** Gets called for simple background repaints
         */
        void backgroundPaint( const ::basegfx::B2DRange& rUpdateRect );

        /** Gets called when area can be handled by scrolling.

        	Called method must copy screen content from rMoveStart to
        	rMoveEnd, and restore the background in the uncovered
        	areas.

            @param rMoveStart
            Source rect of the scroll

            @param rMoveEnd
            Dest rect of the scroll

            @param rUpdateArea
            All info necessary, should rMoveStart be partially or
            fully outside the outdev
         */
        void scrollUpdate( const ::basegfx::B2DRange& 							rMoveStart,
                           const ::basegfx::B2DRange& 							rMoveEnd,
                           const ::canvas::SpriteRedrawManager::UpdateArea& 	rUpdateArea );

        void opaqueUpdate( const ::canvas::SpriteRedrawManager::UpdateArea& rUpdateArea );

        void genericUpdate( const ::canvas::SpriteRedrawManager::UpdateArea& rUpdateArea );

    private:
        /// Set from the SpriteCanvas: instance coordinating sprite redraw
    	::canvas::SpriteRedrawManager*	mpRedrawManager;
    };
}

#endif /* _NULLCANVAS_SPRITECANVASHELPER_HXX_ */