text: /**************************************************************
   * 
   * 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 INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLHELPERBUFFERDEVICE_HXX
  #define INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLHELPERBUFFERDEVICE_HXX
  
  #include <vcl/virdev.hxx>
  
  //////////////////////////////////////////////////////////////////////////////
  // predefines
  
  namespace basegfx { class B2DRange; }
  
  //////////////////////////////////////////////////////////////////////////////
  // support methods for vcl direct gradient renderering
  
  namespace drawinglayer
  {
  	class impBufferDevice
  	{
          OutputDevice&                       mrOutDev;
          VirtualDevice*                      mpContent;
          VirtualDevice*                      mpMask;
          VirtualDevice*                      mpAlpha;
          Rectangle                           maDestPixel;
  
  	public:
  		impBufferDevice(
  			OutputDevice& rOutDev, 
  			const basegfx::B2DRange& rRange,
  			bool bAddOffsetToMapping);
  		~impBufferDevice();
  
  		void paint(double fTrans = 0.0);
  		bool isVisible() const { return !maDestPixel.IsEmpty(); }
  		VirtualDevice& getContent();
  		VirtualDevice& getMask();
  		VirtualDevice& getTransparence();
  	};
  } // end of namespace drawinglayer
  
  //////////////////////////////////////////////////////////////////////////////
  
  #endif // INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLHELPERBUFFERDEVICE_HXX
  
  // eof
  