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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 "WidgetBase.h"
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36
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37
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38 namespace OrthancStone
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39 {
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40 class LayoutWidget :
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41 public WidgetBase,
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42 public IWidget::IChangeObserver
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43 {
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44 private:
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45 class LayoutMouseTracker;
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46 class ChildWidget;
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47
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48 std::vector<ChildWidget*> children_;
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49 bool isHorizontal_;
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50 bool started_;
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51 unsigned int width_;
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52 unsigned int height_;
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53 std::auto_ptr<IMouseTracker> mouseTracker_;
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54 unsigned int paddingLeft_;
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55 unsigned int paddingTop_;
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56 unsigned int paddingRight_;
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57 unsigned int paddingBottom_;
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58 unsigned int paddingInternal_;
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59
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60 void ComputeChildrenExtents();
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61
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62 protected:
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63 virtual bool HasUpdateThread() const
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64 {
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65 return false;
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66 }
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67
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68 virtual void UpdateStep();
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69
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70
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71 public:
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72 LayoutWidget();
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73
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74 virtual ~LayoutWidget();
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75
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76 virtual void NotifyChange(const IWidget& widget);
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77
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78 void SetHorizontal();
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79
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80 void SetVertical();
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81
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82 void SetPadding(unsigned int left,
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83 unsigned int top,
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84 unsigned int right,
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85 unsigned int bottom,
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86 unsigned int spacing);
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87
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88 void SetPadding(unsigned int padding);
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89
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90 unsigned int GetPaddingLeft() const
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91 {
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92 return paddingLeft_;
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93 }
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94
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95 unsigned int GetPaddingTop() const
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96 {
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97 return paddingTop_;
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98 }
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99
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100 unsigned int GetPaddingRight() const
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101 {
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102 return paddingRight_;
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103 }
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104
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105 unsigned int GetPaddingBottom() const
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106 {
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107 return paddingBottom_;
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108 }
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109
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110 unsigned int GetPaddingInternal() const
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111 {
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112 return paddingInternal_;
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113 }
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114
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115 IWidget& AddWidget(IWidget* widget); // Takes ownership
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116
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117 virtual void SetStatusBar(IStatusBar& statusBar);
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118
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119 virtual void ResetStatusBar();
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120
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121 virtual void Start();
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122
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123 virtual void Stop();
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124
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125 virtual void SetSize(unsigned int width,
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126 unsigned int height);
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127
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128 virtual bool Render(Orthanc::ImageAccessor& surface);
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129
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130 virtual IMouseTracker* CreateMouseTracker(MouseButton button,
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131 int x,
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132 int y,
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133 KeyboardModifiers modifiers);
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134
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135 virtual void RenderMouseOver(Orthanc::ImageAccessor& target,
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136 int x,
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137 int y);
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138
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139 virtual void MouseWheel(MouseWheelDirection direction,
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140 int x,
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141 int y,
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142 KeyboardModifiers modifiers);
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143
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144 virtual void KeyPressed(char key,
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145 KeyboardModifiers modifiers);
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146 };
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147 }
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