Mercurial > hg > orthanc-stone
annotate Framework/Viewport/CairoSurface.h @ 560:aaeec7be8fb7
add support for alpha channel in CairoSurface
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 17 Apr 2019 17:57:50 +0200 |
| parents | b1e1eccee214 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
| 439 | 5 * Copyright (C) 2017-2019 Osimis S.A., Belgium |
| 0 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 47 | 8 * modify it under the terms of the GNU Affero General Public License |
| 9 * as published by the Free Software Foundation, either version 3 of | |
| 10 * the License, or (at your option) any later version. | |
| 0 | 11 * |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 47 | 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 * Affero General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Affero General Public License | |
| 0 | 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #pragma once | |
| 23 | |
|
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24 #include <Core/Images/ImageAccessor.h> |
| 0 | 25 |
| 26 #include <boost/noncopyable.hpp> | |
| 27 #include <cairo.h> | |
| 28 | |
| 29 namespace OrthancStone | |
| 30 { | |
| 31 class CairoSurface : public boost::noncopyable | |
| 32 { | |
| 33 private: | |
| 34 cairo_surface_t* surface_; | |
| 35 unsigned int width_; | |
| 36 unsigned int height_; | |
| 37 unsigned int pitch_; | |
| 38 void* buffer_; | |
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add support for alpha channel in CairoSurface
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parents:
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39 bool hasAlpha_; |
| 0 | 40 |
| 41 void Release(); | |
| 42 | |
| 43 void Allocate(unsigned int width, | |
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parents:
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44 unsigned int height, |
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45 bool hasAlpha); |
| 0 | 46 |
| 47 public: | |
| 48 CairoSurface() : | |
| 49 surface_(NULL) | |
| 50 { | |
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51 Allocate(0, 0, false); |
| 0 | 52 } |
| 53 | |
| 54 CairoSurface(unsigned int width, | |
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55 unsigned int height, |
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parents:
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56 bool hasAlpha) : |
| 0 | 57 surface_(NULL) |
| 58 { | |
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59 Allocate(width, height, hasAlpha); |
| 0 | 60 } |
| 61 | |
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62 CairoSurface(Orthanc::ImageAccessor& accessor, |
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63 bool hasAlpha); |
| 0 | 64 |
| 65 ~CairoSurface() | |
| 66 { | |
| 67 Release(); | |
| 68 } | |
| 69 | |
| 70 void SetSize(unsigned int width, | |
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71 unsigned int height, |
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72 bool hasAlpha); |
| 0 | 73 |
| 74 void Copy(const CairoSurface& other); | |
| 75 | |
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76 void Copy(const Orthanc::ImageAccessor& source, |
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77 bool hasAlpha); |
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78 |
| 0 | 79 unsigned int GetWidth() const |
| 80 { | |
| 81 return width_; | |
| 82 } | |
| 83 | |
| 84 unsigned int GetHeight() const | |
| 85 { | |
| 86 return height_; | |
| 87 } | |
| 88 | |
| 89 unsigned int GetPitch() const | |
| 90 { | |
| 91 return pitch_; | |
| 92 } | |
| 93 | |
| 94 const void* GetBuffer() const | |
| 95 { | |
| 96 return buffer_; | |
| 97 } | |
| 98 | |
| 99 void* GetBuffer() | |
| 100 { | |
| 101 return buffer_; | |
| 102 } | |
| 103 | |
| 104 cairo_surface_t* GetObject() | |
| 105 { | |
| 106 return surface_; | |
| 107 } | |
| 108 | |
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parents:
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109 bool HasAlpha() const |
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parents:
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110 { |
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parents:
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111 return hasAlpha_; |
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parents:
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112 } |
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parents:
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113 |
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114 void GetReadOnlyAccessor(Orthanc::ImageAccessor& target) const; |
| 0 | 115 |
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116 void GetWriteableAccessor(Orthanc::ImageAccessor& target); |
| 0 | 117 }; |
| 118 } |