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