sd/source/ui/slidesorter/view/SlsLayeredDevice.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
  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 #pragma once
  21
  22 #include <view/SlsILayerPainter.hxx>
  23
  24 #include <vcl/vclptr.hxx>
  25 #include <vcl/mapmod.hxx>
  26
  27 #include <memory>
  28
  29 namespace sd { class Window; }
  30 namespace tools { class Rectangle; }
  31 namespace vcl { class Region; }
  32
  33 class VirtualDevice;
  34
  35 namespace sd::slidesorter::view {
  36
  37 /** A simple wrapper around an OutputDevice that provides support for
  38     independent layers and buffering.
  39     Each layer may contain any number of painters.
  40 */
  41 class LayeredDevice
  42     : public std::enable_shared_from_this<LayeredDevice>
  43
  44 {
  45 public:
  46     explicit LayeredDevice (const VclPtr<sd::Window>& pTargetWindow);
  47     ~LayeredDevice ();
  48
  49     void Invalidate (
  50         const ::tools::Rectangle& rInvalidationBox,
  51         const sal_Int32 nLayer);
  52     void InvalidateAllLayers (
  53         const ::tools::Rectangle& rInvalidationBox);
  54     void InvalidateAllLayers (
  55         const vcl::Region& rInvalidationRegion);
  56
  57     void RegisterPainter (
  58         const SharedILayerPainter& rPainter,
  59         const sal_Int32 nLayer);
  60
  61     void RemovePainter (
  62         const SharedILayerPainter& rPainter,
  63         const sal_Int32 nLayer);
  64
  65     bool HandleMapModeChange();
  66     void Repaint (const vcl::Region& rRepaintRegion);
  67
  68     void Resize();
  69
  70     void Dispose();
  71
  72 private:
  73     VclPtr<sd::Window> mpTargetWindow;
  74     class LayerContainer;
  75     std::unique_ptr<LayerContainer> mpLayers;
  76     ScopedVclPtr<VirtualDevice> mpBackBuffer;
  77     MapMode maSavedMapMode;
  78
  79     void RepaintRectangle (const ::tools::Rectangle& rRepaintRectangle);
  80 };
  81
  82 } // end of namespace ::sd::slidesorter::view
  83
  84 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */