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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 "TestWorldSceneWidget.h"
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34
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35 #include <stdio.h>
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36
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37 namespace OrthancStone
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38 {
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39 namespace Samples
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40 {
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41 class TestWorldSceneWidget::Interactor : public IWorldSceneInteractor
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42 {
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43 public:
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44 virtual IWorldSceneMouseTracker* CreateMouseTracker(WorldSceneWidget& widget,
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45 const SliceGeometry& slice,
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46 const ViewportGeometry& view,
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47 MouseButton button,
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48 double x,
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49 double y,
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50 IStatusBar* statusBar)
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51 {
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52 if (statusBar)
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53 {
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54 char buf[64];
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55 sprintf(buf, "X = %0.2f, Y = %0.2f", x, y);
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56 statusBar->SetMessage(buf);
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57 }
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58
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59 return NULL;
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60 }
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61
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62 virtual void MouseOver(CairoContext& context,
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63 WorldSceneWidget& widget,
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64 const SliceGeometry& slice,
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65 const ViewportGeometry& view,
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66 double x,
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67 double y,
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68 IStatusBar* statusBar)
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69 {
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70 double S = 0.5;
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71
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72 if (fabs(x) <= S &&
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73 fabs(y) <= S)
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74 {
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75 cairo_t* cr = context.GetObject();
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76 cairo_set_source_rgb(cr, 1, 0, 0);
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77 cairo_rectangle(cr, -S, -S , 2.0 * S, 2.0 * S);
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78 cairo_set_line_width(cr, 1.0 / view.GetZoom());
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79 cairo_stroke(cr);
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80 }
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81 }
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82
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83 virtual void MouseWheel(WorldSceneWidget& widget,
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84 MouseWheelDirection direction,
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85 KeyboardModifiers modifiers,
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86 IStatusBar* statusBar)
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87 {
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88 if (statusBar)
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89 {
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90 statusBar->SetMessage(direction == MouseWheelDirection_Down ? "Wheel down" : "Wheel up");
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91 }
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92 }
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93
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94 virtual void KeyPressed(WorldSceneWidget& widget,
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95 char key,
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96 KeyboardModifiers modifiers,
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97 IStatusBar* statusBar)
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98 {
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99 if (statusBar)
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100 {
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101 statusBar->SetMessage("Key pressed: \"" + std::string(1, key) + "\"");
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102 }
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103 }
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104 };
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105
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106
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107 bool TestWorldSceneWidget::RenderScene(CairoContext& context,
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108 const ViewportGeometry& view)
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109 {
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110 cairo_t* cr = context.GetObject();
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111
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112 // Clear background
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113 cairo_set_source_rgb(cr, 0, 0, 0);
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114 cairo_paint(cr);
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115
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116 cairo_set_source_rgb(cr, 0, 1, 0);
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117 cairo_rectangle(cr, -10, -.5, 20, 1);
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118 cairo_fill(cr);
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119
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120 return true;
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121 }
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122
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123
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124 TestWorldSceneWidget::TestWorldSceneWidget() :
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125 interactor_(new Interactor)
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126 {
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127 SetInteractor(*interactor_);
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128 }
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129
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130
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131 void TestWorldSceneWidget::GetSceneExtent(double& x1,
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132 double& y1,
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133 double& x2,
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134 double& y2)
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135 {
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136 x1 = -10;
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137 x2 = 10;
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138 y1 = -.5;
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139 y2 = .5;
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140 }
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141 }
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142 }
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