1463
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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 * Copyright (C) 2017-2020 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21 #include "BasicScene.h"
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22
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23 // From Stone
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24 #include "Framework/Scene2D/Scene2D.h"
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25 #include "Framework/Scene2D/ColorTextureSceneLayer.h"
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26 #include "Framework/Scene2D/PolylineSceneLayer.h"
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27 #include "Framework/Scene2D/TextSceneLayer.h"
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28
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29 #include "Framework/Scene2D/PanSceneTracker.h"
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30 #include "Framework/Scene2D/ZoomSceneTracker.h"
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31 #include "Framework/Scene2D/RotateSceneTracker.h"
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32
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33 #include "Framework/Scene2D/CairoCompositor.h"
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34
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35 // From Orthanc framework
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36 #include <Core/Images/Image.h>
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37 #include <Core/Images/ImageProcessing.h>
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38 #include <Core/Images/PngWriter.h>
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39
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40 using namespace OrthancStone;
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41
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42 const unsigned int BASIC_SCENE_FONT_SIZE = 32;
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43 const int BASIC_SCENE_LAYER_POSITION = 150;
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44
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45 void PrepareScene(Scene2D& scene)
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46 {
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47 //Scene2D& scene(*controller->GetScene());
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48 // Texture of 2x2 size
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49 {
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50 Orthanc::Image i(Orthanc::PixelFormat_RGB24, 2, 2, false);
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51
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52 uint8_t *p = reinterpret_cast<uint8_t*>(i.GetRow(0));
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53 p[0] = 255;
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54 p[1] = 0;
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55 p[2] = 0;
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56
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57 p[3] = 0;
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58 p[4] = 255;
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59 p[5] = 0;
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60
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61 p = reinterpret_cast<uint8_t*>(i.GetRow(1));
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62 p[0] = 0;
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63 p[1] = 0;
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64 p[2] = 255;
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65
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66 p[3] = 255;
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67 p[4] = 0;
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68 p[5] = 0;
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69
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70 scene.SetLayer(12, new ColorTextureSceneLayer(i));
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71
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72 std::unique_ptr<ColorTextureSceneLayer> l(new ColorTextureSceneLayer(i));
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73 l->SetOrigin(-3, 2);
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74 l->SetPixelSpacing(1.5, 1);
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75 l->SetAngle(20.0 / 180.0 * 3.14);
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76 scene.SetLayer(14, l.release());
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77 }
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78
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79 // Texture of 1x1 size
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80 {
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81 Orthanc::Image i(Orthanc::PixelFormat_RGB24, 1, 1, false);
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82
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83 uint8_t *p = reinterpret_cast<uint8_t*>(i.GetRow(0));
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84 p[0] = 255;
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85 p[1] = 0;
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86 p[2] = 0;
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87
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88 std::unique_ptr<ColorTextureSceneLayer> l(new ColorTextureSceneLayer(i));
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89 l->SetOrigin(-2, 1);
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90 l->SetAngle(20.0 / 180.0 * 3.14);
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91 scene.SetLayer(13, l.release());
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92 }
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93
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94 // Some lines
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95 {
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96 std::unique_ptr<PolylineSceneLayer> layer(new PolylineSceneLayer);
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97
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98 layer->SetThickness(1);
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99
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100 PolylineSceneLayer::Chain chain;
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101 chain.push_back(ScenePoint2D(0 - 0.5, 0 - 0.5));
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102 chain.push_back(ScenePoint2D(0 - 0.5, 2 - 0.5));
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103 chain.push_back(ScenePoint2D(2 - 0.5, 2 - 0.5));
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104 chain.push_back(ScenePoint2D(2 - 0.5, 0 - 0.5));
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105 layer->AddChain(chain, true, 255, 0, 0);
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106
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107 chain.clear();
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108 chain.push_back(ScenePoint2D(-5, -5));
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109 chain.push_back(ScenePoint2D(5, -5));
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110 chain.push_back(ScenePoint2D(5, 5));
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111 chain.push_back(ScenePoint2D(-5, 5));
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112 layer->AddChain(chain, true, 0, 255, 0);
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113
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114 double dy = 1.01;
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115 chain.clear();
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116 chain.push_back(ScenePoint2D(-4, -4));
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117 chain.push_back(ScenePoint2D(4, -4 + dy));
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118 chain.push_back(ScenePoint2D(-4, -4 + 2.0 * dy));
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119 chain.push_back(ScenePoint2D(4, 2));
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120 layer->AddChain(chain, false, 0, 0, 255);
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121
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122 // layer->SetColor(0,255, 255);
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123 scene.SetLayer(50, layer.release());
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124 }
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125
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126 // Some text
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127 {
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128 std::unique_ptr<TextSceneLayer> layer(new TextSceneLayer);
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129 layer->SetText("Hello");
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130 scene.SetLayer(100, layer.release());
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131 }
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132 }
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133
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134 #if ORTHANC_SANDBOXED == 0
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135 void TakeScreenshot(const std::string& target,
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136 const OrthancStone::Scene2D& scene,
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137 unsigned int canvasWidth,
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138 unsigned int canvasHeight)
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139 {
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140 using namespace OrthancStone;
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141 // Take a screenshot, then save it as PNG file
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142 CairoCompositor compositor(scene, canvasWidth, canvasHeight);
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143 compositor.SetFont(0, Orthanc::EmbeddedResources::UBUNTU_FONT, BASIC_SCENE_FONT_SIZE, Orthanc::Encoding_Latin1);
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144 compositor.Refresh();
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145
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146 Orthanc::ImageAccessor canvas;
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147 compositor.GetCanvas().GetReadOnlyAccessor(canvas);
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148
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149 Orthanc::Image png(Orthanc::PixelFormat_RGB24, canvas.GetWidth(), canvas.GetHeight(), false);
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150 Orthanc::ImageProcessing::Convert(png, canvas);
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151
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152 Orthanc::PngWriter writer;
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153 writer.WriteToFile(target, png);
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154 }
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155 #endif
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156
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157 void ShowCursorInfo(Scene2D& scene, const PointerEvent& pointerEvent)
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158 {
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159 ScenePoint2D p = pointerEvent.GetMainPosition().Apply(scene.GetCanvasToSceneTransform());
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160
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161 char buf[64];
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162 sprintf(buf, "(%0.02f,%0.02f)", p.GetX(), p.GetY());
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163
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164 if (scene.HasLayer(BASIC_SCENE_LAYER_POSITION))
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165 {
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166 TextSceneLayer& layer =
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167 dynamic_cast<TextSceneLayer&>(scene.GetLayer(BASIC_SCENE_LAYER_POSITION));
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168 layer.SetText(buf);
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169 layer.SetPosition(p.GetX(), p.GetY());
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170 }
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171 else
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172 {
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173 std::unique_ptr<TextSceneLayer>
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174 layer(new TextSceneLayer);
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175 layer->SetColor(0, 255, 0);
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176 layer->SetText(buf);
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177 layer->SetBorder(20);
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178 layer->SetAnchor(BitmapAnchor_BottomCenter);
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179 layer->SetPosition(p.GetX(), p.GetY());
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180 scene.SetLayer(BASIC_SCENE_LAYER_POSITION, layer.release());
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181 }
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182 }
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183
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184
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185
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186 bool BasicScene2DInteractor::OnMouseEvent(const GuiAdapterMouseEvent& event, const PointerEvent& pointerEvent)
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187 {
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188 if (currentTracker_.get() != NULL)
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189 {
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190 switch (event.type)
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191 {
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192 case GUIADAPTER_EVENT_MOUSEUP:
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193 {
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194 currentTracker_->PointerUp(pointerEvent);
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195 if (!currentTracker_->IsAlive())
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196 {
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197 currentTracker_.reset();
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198 }
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199 };break;
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200 case GUIADAPTER_EVENT_MOUSEMOVE:
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201 {
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202 currentTracker_->PointerMove(pointerEvent);
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203 };break;
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204 default:
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205 return false;
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206 }
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207 return true;
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208 }
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209 else if (event.type == GUIADAPTER_EVENT_MOUSEDOWN)
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210 {
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211 if (event.button == GUIADAPTER_MOUSEBUTTON_LEFT)
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212 {
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213 currentTracker_.reset(new RotateSceneTracker(viewportController_, pointerEvent));
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214 }
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215 else if (event.button == GUIADAPTER_MOUSEBUTTON_MIDDLE)
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216 {
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217 currentTracker_.reset(new PanSceneTracker(viewportController_, pointerEvent));
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218 }
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219 else if (event.button == GUIADAPTER_MOUSEBUTTON_RIGHT)
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220 {
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221 currentTracker_.reset(new ZoomSceneTracker(viewportController_, pointerEvent, viewportController_->GetViewport().GetCanvasHeight()));
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222 }
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223 }
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224 else if (event.type == GUIADAPTER_EVENT_MOUSEMOVE)
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225 {
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226 if (showCursorInfo_)
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227 {
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228 Scene2D& scene(viewportController_->GetScene());
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229 ShowCursorInfo(scene, pointerEvent);
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230 }
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231 return true;
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232 }
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233 return false;
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234 }
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235
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236 bool BasicScene2DInteractor::OnKeyboardEvent(const GuiAdapterKeyboardEvent& guiEvent)
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237 {
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238 if (guiEvent.type == GUIADAPTER_EVENT_KEYDOWN)
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239 {
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240 switch (guiEvent.sym[0])
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241 {
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242 case 's':
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243 {
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244 //viewportController_->FitContent(viewportController_->GetViewport().GetCanvasWidth(), viewportController_->GetViewport().GetCanvasHeight());
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245 viewportController_->FitContent();
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246 return true;
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247 };
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248 #if ORTHANC_SANDBOXED == 0
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249 case 'c':
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250 {
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251 Scene2D& scene(viewportController_->GetScene());
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252 TakeScreenshot("screenshot.png", scene, viewportController_->GetViewport().GetCanvasWidth(), viewportController_->GetViewport().GetCanvasHeight());
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253 return true;
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254 }
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255 #endif
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256 case 'd':
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257 {
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258 showCursorInfo_ = !showCursorInfo_;
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259 if (!showCursorInfo_)
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260 {
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261 Scene2D& scene(viewportController_->GetScene());
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262 scene.DeleteLayer(BASIC_SCENE_LAYER_POSITION);
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263 }
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264
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265 return true;
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266 }
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267 }
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268 }
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269 return false;
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270 }
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271
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272 bool BasicScene2DInteractor::OnWheelEvent(const GuiAdapterWheelEvent& guiEvent)
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273 {
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274 return false;
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275 }
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