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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef _CPPCANVAS_BITMAP_HXX
      21             : #define _CPPCANVAS_BITMAP_HXX
      22             : 
      23             : #include <com/sun/star/uno/Reference.hxx>
      24             : 
      25             : #include <boost/shared_ptr.hpp>
      26             : #include <cppcanvas/canvasgraphic.hxx>
      27             : #include <cppcanvas/bitmapcanvas.hxx>
      28             : 
      29             : namespace com { namespace sun { namespace star { namespace rendering
      30             : {
      31             :     class  XBitmap;
      32             : } } } }
      33             : 
      34             : 
      35             : /* Definition of Bitmap interface */
      36             : 
      37             : namespace cppcanvas
      38             : {
      39             : 
      40             :     /** This interface defines a Bitmap canvas object
      41             : 
      42             :         Consider this object part of the view, and not of the model
      43             :         data, as this bitmap can only be painted on its parent canvas
      44             :      */
      45           0 :     class Bitmap : public virtual CanvasGraphic
      46             :     {
      47             :     public:
      48             :         /** Render to parent canvas, with global alpha.
      49             : 
      50             :             This method renders the content to the parent canvas,
      51             :             i.e. the canvas this object was constructed for.
      52             : 
      53             :             @param nAlphaModulation
      54             :             Global alpha value, with which each pixel alpha value gets
      55             :             multiplied. For a normal, opaque bitmap, this will make
      56             :             the bitmap appear transparent with the given alpha value
      57             :             (value must be in the range [0,1]).
      58             : 
      59             :             @return whether the rendering finished successfully.
      60             :          */
      61             :         virtual bool                        drawAlphaModulated( double nAlphaModulation ) const = 0;
      62             : 
      63             :         virtual BitmapCanvasSharedPtr       getBitmapCanvas() const = 0;
      64             : 
      65             :         virtual ::com::sun::star::uno::Reference<
      66             :             ::com::sun::star::rendering::XBitmap >  getUNOBitmap() const = 0;
      67             :     };
      68             : 
      69             :     typedef ::boost::shared_ptr< ::cppcanvas::Bitmap > BitmapSharedPtr;
      70             : }
      71             : 
      72             : #endif /* _CPPCANVAS_BITMAP_HXX */
      73             : 
      74             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */