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annotate OrthancStone/Sources/Wrappers/CairoSurface.h @ 1681:f2e8b3ac1dcd

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handling multiple windowing presets in the Stone web viewer
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 24 Nov 2020 18:08:07 +0100
parents 8563ea5d8ae4
children 9ac2a65d4172
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Lesser General Public License
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28956ed68280 agpl license
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Lesser General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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21
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23 #pragma once
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25 #include <Images/ImageAccessor.h>
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27 #include <boost/noncopyable.hpp>
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28 #include <cairo.h>
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29
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30 namespace OrthancStone
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31 {
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32 class CairoSurface : public boost::noncopyable
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33 {
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34 private:
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35 cairo_surface_t* surface_;
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36 unsigned int width_;
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37 unsigned int height_;
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38 unsigned int pitch_;
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39 void* buffer_;
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40 bool hasAlpha_;
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42 void Release();
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44 void Allocate(unsigned int width,
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45 unsigned int height,
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46 bool hasAlpha);
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48 public:
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49 CairoSurface() :
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50 surface_(NULL)
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51 {
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52 Allocate(0, 0, false);
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53 }
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55 CairoSurface(unsigned int width,
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56 unsigned int height,
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57 bool hasAlpha) :
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58 surface_(NULL)
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59 {
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60 Allocate(width, height, hasAlpha);
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61 }
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62
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63 CairoSurface(Orthanc::ImageAccessor& accessor,
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64 bool hasAlpha);
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65
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66 ~CairoSurface()
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67 {
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68 Release();
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69 }
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71 void SetSize(unsigned int width,
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72 unsigned int height,
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73 bool hasAlpha);
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75 void Copy(const CairoSurface& other);
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76
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77 void Copy(const Orthanc::ImageAccessor& source,
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78 bool hasAlpha);
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79
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80 unsigned int GetWidth() const
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81 {
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82 return width_;
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83 }
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84
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85 unsigned int GetHeight() const
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86 {
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87 return height_;
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88 }
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89
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90 unsigned int GetPitch() const
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91 {
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92 return pitch_;
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93 }
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94
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95 const void* GetBuffer() const
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96 {
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97 return buffer_;
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98 }
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99
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100 void* GetBuffer()
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101 {
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102 return buffer_;
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103 }
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104
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105 cairo_surface_t* GetObject()
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106 {
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107 return surface_;
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108 }
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109
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110 bool HasAlpha() const
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111 {
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112 return hasAlpha_;
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113 }
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114
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115 void GetReadOnlyAccessor(Orthanc::ImageAccessor& target) const;
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116
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117 void GetWriteableAccessor(Orthanc::ImageAccessor& target);
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118 };
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119 }