Mercurial > hg > orthanc-stone
comparison Framework/Widgets/CairoWidget.cpp @ 0:351ab0da0150
initial commit
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 14 Oct 2016 15:34:11 +0200 |
parents | |
children | ff1e935768e7 |
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1 /** | |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
5 * | |
6 * This program is free software: you can redistribute it and/or | |
7 * modify it under the terms of the GNU General Public License as | |
8 * published by the Free Software Foundation, either version 3 of the | |
9 * License, or (at your option) any later version. | |
10 * | |
11 * In addition, as a special exception, the copyright holders of this | |
12 * program give permission to link the code of its release with the | |
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
14 * that use the same license as the "OpenSSL" library), and distribute | |
15 * the linked executables. You must obey the GNU General Public License | |
16 * in all respects for all of the code used other than "OpenSSL". If you | |
17 * modify file(s) with this exception, you may extend this exception to | |
18 * your version of the file(s), but you are not obligated to do so. If | |
19 * you do not wish to do so, delete this exception statement from your | |
20 * version. If you delete this exception statement from all source files | |
21 * in the program, then also delete it here. | |
22 * | |
23 * This program is distributed in the hope that it will be useful, but | |
24 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
26 * General Public License for more details. | |
27 * | |
28 * You should have received a copy of the GNU General Public License | |
29 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
30 **/ | |
31 | |
32 | |
33 #include "CairoWidget.h" | |
34 | |
35 #include "../Orthanc/Core/Images/ImageProcessing.h" | |
36 #include "../Orthanc/Core/OrthancException.h" | |
37 | |
38 namespace OrthancStone | |
39 { | |
40 static bool IsAligned(const Orthanc::ImageAccessor& target) | |
41 { | |
42 // TODO | |
43 return true; | |
44 } | |
45 | |
46 | |
47 void CairoWidget::SetSize(unsigned int width, | |
48 unsigned int height) | |
49 { | |
50 surface_.SetSize(width, height); | |
51 } | |
52 | |
53 | |
54 bool CairoWidget::Render(Orthanc::ImageAccessor& target) | |
55 { | |
56 // Don't call the base class here, as | |
57 // "ClearBackgroundCairo()" is a faster alternative | |
58 | |
59 if (IsAligned(target)) | |
60 { | |
61 CairoSurface surface(target); | |
62 CairoContext context(surface); | |
63 ClearBackgroundCairo(context); | |
64 return RenderCairo(context); | |
65 } | |
66 else | |
67 { | |
68 CairoContext context(surface_); | |
69 ClearBackgroundCairo(context); | |
70 | |
71 if (RenderCairo(context)) | |
72 { | |
73 Orthanc::ImageProcessing::Copy(target, surface_.GetAccessor()); | |
74 return true; | |
75 } | |
76 else | |
77 { | |
78 return false; | |
79 } | |
80 } | |
81 } | |
82 | |
83 | |
84 void CairoWidget::RenderMouseOver(Orthanc::ImageAccessor& target, | |
85 int x, | |
86 int y) | |
87 { | |
88 if (IsAligned(target)) | |
89 { | |
90 CairoSurface surface(target); | |
91 CairoContext context(surface); | |
92 RenderMouseOverCairo(context, x, y); | |
93 } | |
94 else | |
95 { | |
96 Orthanc::ImageAccessor accessor = surface_.GetAccessor(); | |
97 Orthanc::ImageProcessing::Copy(accessor, target); | |
98 | |
99 CairoContext context(surface_); | |
100 RenderMouseOverCairo(context, x, y); | |
101 | |
102 Orthanc::ImageProcessing::Copy(target, accessor); | |
103 } | |
104 } | |
105 } |