1 /**************************************************************
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one
4  * or more contributor license agreements.  See the NOTICE file
5  * distributed with this work for additional information
6  * regarding copyright ownership.  The ASF licenses this file
7  * to you under the Apache License, Version 2.0 (the
8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
10  *
11  *   http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
19  *
20  *************************************************************/
21 
22 
23 
24 #ifndef INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLHELPERBUFFERDEVICE_HXX
25 #define INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLHELPERBUFFERDEVICE_HXX
26 
27 #include <vcl/virdev.hxx>
28 
29 //////////////////////////////////////////////////////////////////////////////
30 // predefines
31 
32 namespace basegfx { class B2DRange; }
33 
34 //////////////////////////////////////////////////////////////////////////////
35 // support methods for vcl direct gradient renderering
36 
37 namespace drawinglayer
38 {
39 	class impBufferDevice
40 	{
41 		OutputDevice&						mrOutDev;
42 		VirtualDevice						maContent;
43 		VirtualDevice*						mpMask;
44 		VirtualDevice*						mpAlpha;
45 		Rectangle							maDestPixel;
46 
47 	public:
48 		impBufferDevice(
49 			OutputDevice& rOutDev,
50 			const basegfx::B2DRange& rRange,
51 			bool bAddOffsetToMapping);
52 		~impBufferDevice();
53 
54 		void paint(double fTrans = 0.0);
55 		bool isVisible() const { return !maDestPixel.IsEmpty(); }
56 		VirtualDevice& getContent() { return maContent; }
57 		VirtualDevice& getMask();
58 		VirtualDevice& getTransparence();
59 	};
60 } // end of namespace drawinglayer
61 
62 //////////////////////////////////////////////////////////////////////////////
63 
64 #endif // INCLUDED_DRAWINGLAYER_PROCESSOR2D_VCLHELPERBUFFERDEVICE_HXX
65 
66 // eof
67