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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 #pragma once
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34
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35 #include "IWidget.h"
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36
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37 namespace OrthancStone
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38 {
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39 /**
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40 * This is a test widget that simply fills its surface with an
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41 * uniform color.
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42 **/
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43 class EmptyWidget : public IWidget
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44 {
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45 private:
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46 uint8_t red_;
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47 uint8_t green_;
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48 uint8_t blue_;
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49
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50 public:
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51 EmptyWidget(uint8_t red,
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52 uint8_t green,
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53 uint8_t blue) :
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54 red_(red),
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55 green_(green),
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56 blue_(blue)
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57 {
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58 }
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59
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60 virtual void SetStatusBar(IStatusBar& statusBar)
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61 {
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62 }
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63
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64 virtual void ResetStatusBar()
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65 {
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66 }
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67
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68 virtual void Register(IChangeObserver& observer)
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69 {
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70 }
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71
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72 virtual void Unregister(IChangeObserver& observer)
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73 {
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74 }
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75
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76 virtual void Start()
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77 {
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78 }
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79
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80 virtual void Stop()
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81 {
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82 }
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83
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84 virtual void SetSize(unsigned int width,
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85 unsigned int height)
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86 {
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87 }
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88
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89 virtual bool Render(Orthanc::ImageAccessor& surface);
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90
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91 virtual IMouseTracker* CreateMouseTracker(MouseButton button,
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92 int x,
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93 int y,
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94 KeyboardModifiers modifiers)
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95 {
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96 return NULL;
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97 }
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98
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99 virtual void RenderMouseOver(Orthanc::ImageAccessor& target,
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100 int x,
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101 int y)
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102 {
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103 }
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104
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105 virtual void MouseWheel(MouseWheelDirection direction,
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106 int x,
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107 int y,
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108 KeyboardModifiers modifiers)
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109 {
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110 }
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111
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112 virtual void KeyPressed(char key,
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113 KeyboardModifiers modifiers)
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114 {
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115 }
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116 };
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117 }
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