drawinglayer/source/processor2d/vclhelperbufferdevice.hxx

   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
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  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 #pragma once
  21
  22 #include <vcl/virdev.hxx>
  23
  24 namespace basegfx
  25 {
  26 class B2DRange;
  27 }
  28
  29 // support methods for vcl direct gradient rendering
  30
  31 namespace drawinglayer
  32 {
  33 class impBufferDevice
  34 {
  35     OutputDevice& mrOutDev;
  36     VclPtr<VirtualDevice> mpContent;
  37     VclPtr<VirtualDevice> mpMask;
  38     VclPtr<VirtualDevice> mpAlpha;
  39     tools::Rectangle maDestPixel;
  40
  41 public:
  42     impBufferDevice(OutputDevice& rOutDev, const basegfx::B2DRange& rRange);
  43     ~impBufferDevice();
  44
  45     void paint(double fTrans = 0.0);
  46     bool isVisible() const { return !maDestPixel.IsEmpty(); }
  47     VirtualDevice& getContent();
  48     VirtualDevice& getMask();
  49     VirtualDevice& getTransparence();
  50 };
  51 } // end of namespace drawinglayer
  52
  53 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */