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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 "IViewport.h"
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36 #include "../Toolbox/ObserversRegistry.h"
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37 #include "../Widgets/IWidget.h"
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38
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39 namespace OrthancStone
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40 {
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41 class WidgetViewport :
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42 public IViewport,
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43 public IWidget::IChangeObserver
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44 {
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45 private:
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46 boost::mutex mutex_;
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47 std::auto_ptr<IWidget> centralWidget_;
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48 IStatusBar* statusBar_;
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49 ObserversRegistry<IViewport> observers_;
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50 std::auto_ptr<IMouseTracker> mouseTracker_;
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51 bool isMouseOver_;
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52 int lastMouseX_;
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53 int lastMouseY_;
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54 CairoSurface background_;
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55 bool backgroundChanged_;
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56 bool started_;
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57
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58 void UnregisterCentralWidget();
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59
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60 public:
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61 WidgetViewport();
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62
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63 virtual ~WidgetViewport()
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64 {
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65 UnregisterCentralWidget();
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66 }
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67
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68 virtual void SetStatusBar(IStatusBar& statusBar);
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69
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70 virtual void ResetStatusBar();
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71
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72 IWidget& SetCentralWidget(IWidget* widget); // Takes ownership
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73
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74 virtual void NotifyChange(const IWidget& widget);
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75
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76 virtual void Register(IViewport::IChangeObserver& observer)
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77 {
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78 observers_.Register(observer);
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79 }
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80
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81 virtual void Unregister(IViewport::IChangeObserver& observer)
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82 {
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83 observers_.Unregister(observer);
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84 }
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85
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86 virtual void Start();
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87
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88 virtual void Stop();
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89
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90 virtual void SetSize(unsigned int width,
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91 unsigned int height);
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92
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93 virtual bool Render(Orthanc::ImageAccessor& surface);
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94
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95 virtual void MouseDown(MouseButton button,
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96 int x,
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97 int y,
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98 KeyboardModifiers modifiers);
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99
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100 virtual void MouseUp();
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101
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102 virtual void MouseMove(int x,
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103 int y);
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104
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105 virtual void MouseEnter();
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106
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107 virtual void MouseLeave();
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108
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109 virtual void MouseWheel(MouseWheelDirection direction,
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110 int x,
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111 int y,
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112 KeyboardModifiers modifiers);
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113
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114 virtual void KeyPressed(char key,
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115 KeyboardModifiers modifiers);
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116 };
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117 }
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