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644
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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) 2017-2019 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 "TrackerSampleApp.h"
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22
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23 #include "../Common/CreateLineMeasureTracker.h"
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24
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25 #include "../../Applications/Sdl/SdlOpenGLWindow.h"
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26
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27 #include "../../Framework/Scene2D/PanSceneTracker.h"
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28 #include "../../Framework/Scene2D/RotateSceneTracker.h"
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29 #include "../../Framework/Scene2D/Scene2D.h"
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30 #include "../../Framework/Scene2D/ZoomSceneTracker.h"
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31 #include "../../Framework/Scene2D/CairoCompositor.h"
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32 #include "../../Framework/Scene2D/ColorTextureSceneLayer.h"
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33 #include "../../Framework/Scene2D/OpenGLCompositor.h"
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34 #include "../../Framework/StoneInitialization.h"
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35
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36 // From Orthanc framework
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37 #include <Core/Logging.h>
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38 #include <Core/OrthancException.h>
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39 #include <Core/Images/Image.h>
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40 #include <Core/Images/ImageProcessing.h>
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41 #include <Core/Images/PngWriter.h>
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42
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43 #include <SDL.h>
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44 #include <stdio.h>
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45
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46 using namespace Orthanc;
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47
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48 namespace OrthancStone
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49 {
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50 const char* MeasureToolToString(size_t i)
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51 {
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52 static const char* descs[] = {
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53 "GuiTool_Rotate",
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54 "GuiTool_Pan",
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55 "GuiTool_Zoom",
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56 "GuiTool_LineMeasure",
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57 "GuiTool_CircleMeasure",
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58 "GuiTool_AngleMeasure",
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59 "GuiTool_EllipseMeasure",
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60 "GuiTool_LAST"
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61 };
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62 if (i >= GuiTool_LAST)
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63 {
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64 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError, "Wrong tool index");
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65 }
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66 return descs[i];
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67 }
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68
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69 Scene2D& TrackerSampleApp::GetScene()
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70 {
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71 return scene_;
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72 }
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73
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74 void TrackerSampleApp::SelectNextTool()
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75 {
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76 currentTool_ = static_cast<GuiTool>(currentTool_ + 1);
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77 if (currentTool_ == GuiTool_LAST)
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78 currentTool_ = static_cast<GuiTool>(0);;
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79 printf("Current tool is now: %s\n", MeasureToolToString(currentTool_));
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80 }
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81
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82 void TrackerSampleApp::DisplayInfoText(const PointerEvent& e)
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83 {
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84 ScenePoint2D p = e.GetMainPosition().Apply(scene_.GetCanvasToSceneTransform());
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85
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86 char buf[64];
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87 sprintf(buf, "(%0.02f,%0.02f)", p.GetX(), p.GetY());
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88
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89 if (scene_.HasLayer(INFOTEXT_LAYER_ZINDEX))
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90 {
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91 TextSceneLayer& layer =
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92 dynamic_cast<TextSceneLayer&>(scene_.GetLayer(INFOTEXT_LAYER_ZINDEX));
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93 layer.SetText(buf);
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94 layer.SetPosition(p.GetX(), p.GetY());
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95 }
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96 else
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97 {
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98 std::auto_ptr<TextSceneLayer> layer(new TextSceneLayer);
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99 layer->SetColor(0, 255, 0);
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100 layer->SetText(buf);
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101 layer->SetBorder(20);
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102 layer->SetAnchor(BitmapAnchor_BottomCenter);
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103 layer->SetPosition(p.GetX(), p.GetY());
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104 scene_.SetLayer(INFOTEXT_LAYER_ZINDEX, layer.release());
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105 }
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106 }
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107
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108 void TrackerSampleApp::HideInfoText()
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109 {
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110 scene_.DeleteLayer(INFOTEXT_LAYER_ZINDEX);
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111 }
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112
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113 void TrackerSampleApp::HandleApplicationEvent(
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114 const OpenGLCompositor & compositor,
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115 const SDL_Event & event)
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116 {
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117 if (event.type == SDL_MOUSEMOTION)
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118 {
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119 int scancodeCount = 0;
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120 const uint8_t* keyboardState = SDL_GetKeyboardState(&scancodeCount);
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121
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122 if (activeTracker_.get() == NULL &&
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123 SDL_SCANCODE_LCTRL < scancodeCount &&
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124 keyboardState[SDL_SCANCODE_LCTRL])
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125 {
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126 // The "left-ctrl" key is down, while no tracker is present
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127 // Let's display the info text
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128 PointerEvent e;
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129 e.AddPosition(compositor.GetPixelCenterCoordinates(event.button.x, event.button.y));
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130 DisplayInfoText(e);
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131 }
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132 else
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133 {
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134 HideInfoText();
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135 //LOG(TRACE) << "(event.type == SDL_MOUSEMOTION)";
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136 if (activeTracker_.get() != NULL)
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137 {
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138 //LOG(TRACE) << "(activeTracker_.get() != NULL)";
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139 PointerEvent e;
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140 e.AddPosition(compositor.GetPixelCenterCoordinates(event.button.x, event.button.y));
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141 //LOG(TRACE) << "event.button.x = " << event.button.x << " " <<
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142 // "event.button.y = " << event.button.y;
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143 //LOG(TRACE) << "activeTracker_->PointerMove(e); " <<
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144 // e.GetMainPosition().GetX() << " " << e.GetMainPosition().GetY();
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145 activeTracker_->PointerMove(e);
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146 if (!activeTracker_->IsActive())
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147 activeTracker_ = NULL;
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148 }
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149 }
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150 }
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151 else if (event.type == SDL_MOUSEBUTTONUP)
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152 {
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153 if (activeTracker_)
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154 {
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155 PointerEvent e;
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156 e.AddPosition(compositor.GetPixelCenterCoordinates(event.button.x, event.button.y));
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157 activeTracker_->PointerUp(e);
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158 if (!activeTracker_->IsActive())
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159 activeTracker_ = NULL;
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160 }
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161 }
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162 else if (event.type == SDL_MOUSEBUTTONDOWN)
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163 {
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164 PointerEvent e;
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165 e.AddPosition(compositor.GetPixelCenterCoordinates(event.button.x, event.button.y));
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166 if (activeTracker_)
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167 {
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168 activeTracker_->PointerDown(e);
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169 if (!activeTracker_->IsActive())
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170 activeTracker_ = NULL;
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171 }
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172 else
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173 {
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174 // we ATTEMPT to create a tracker if need be
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175 activeTracker_ = CreateSuitableTracker(event, e, compositor);
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176 }
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177 }
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178 else if (event.type == SDL_KEYDOWN &&
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179 event.key.repeat == 0 /* Ignore key bounce */)
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180 {
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181 switch (event.key.keysym.sym)
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182 {
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183 case SDLK_ESCAPE:
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184 if (activeTracker_)
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185 {
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186 activeTracker_->Cancel();
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187 if (!activeTracker_->IsActive())
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188 activeTracker_ = NULL;
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189 }
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190 break;
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191
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192 case SDLK_t:
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193 if (!activeTracker_)
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194 SelectNextTool();
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195 else
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196 {
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197 LOG(WARNING) << "You cannot change the active tool when an interaction"
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198 " is taking place";
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199 }
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200 break;
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201
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202 case SDLK_s:
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203 scene_.FitContent(compositor.GetCanvasWidth(),
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204 compositor.GetCanvasHeight());
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205 break;
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206
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207 case SDLK_c:
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208 TakeScreenshot(
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209 "screenshot.png",
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210 compositor.GetCanvasWidth(),
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211 compositor.GetCanvasHeight());
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212 break;
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213
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214 default:
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215 break;
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216 }
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217 }
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218 }
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219
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220 FlexiblePointerTrackerPtr TrackerSampleApp::CreateSuitableTracker(
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221 const SDL_Event & event,
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222 const PointerEvent & e,
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223 const OpenGLCompositor & compositor)
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224 {
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225 switch (event.button.button)
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226 {
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227 case SDL_BUTTON_MIDDLE:
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228 return CreateSimpleTrackerAdapter(PointerTrackerPtr(
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229 new PanSceneTracker(scene_, e)));
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230
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231 case SDL_BUTTON_RIGHT:
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232 return CreateSimpleTrackerAdapter(PointerTrackerPtr(
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233 new ZoomSceneTracker(scene_, e, compositor.GetCanvasHeight())));
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234
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235 case SDL_BUTTON_LEFT:
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236 {
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237 //LOG(TRACE) << "CreateSuitableTracker: case SDL_BUTTON_LEFT:";
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238 // TODO: we need to iterate on the set of measuring tool and perform
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239 // a hit test to check if a tracker needs to be created for edition.
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240 // Otherwise, depending upon the active tool, we might want to create
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241 // a "measuring tool creation" tracker
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242
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243 // TODO: if there are conflicts, we should prefer a tracker that
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244 // pertains to the type of measuring tool currently selected (TBD?)
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245 FlexiblePointerTrackerPtr hitTestTracker = TrackerHitTest(e);
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246
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247 if (hitTestTracker != NULL)
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248 {
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249 //LOG(TRACE) << "hitTestTracker != NULL";
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250 return hitTestTracker;
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251 }
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252 else
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253 {
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254 switch (currentTool_)
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255 {
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256 case GuiTool_Rotate:
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257 //LOG(TRACE) << "Creating RotateSceneTracker";
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258 return CreateSimpleTrackerAdapter(PointerTrackerPtr(
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259 new RotateSceneTracker(scene_, e)));
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260 case GuiTool_LineMeasure:
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261 return FlexiblePointerTrackerPtr(new CreateLineMeasureTracker(
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262 scene_, undoStack_, measureTools_, e));
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263 case GuiTool_Pan:
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264 return CreateSimpleTrackerAdapter(PointerTrackerPtr(
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265 new PanSceneTracker(scene_, e)));
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266 case GuiTool_Zoom:
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267 return CreateSimpleTrackerAdapter(PointerTrackerPtr(
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268 new ZoomSceneTracker(scene_, e, compositor.GetCanvasHeight())));
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269 //case GuiTool_AngleMeasure:
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270 // return new AngleMeasureTracker(scene_, measureTools_, undoStack_, e);
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271 //case GuiTool_CircleMeasure:
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272 // return new CircleMeasureTracker(scene_, measureTools_, undoStack_, e);
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273 //case GuiTool_EllipseMeasure:
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274 // return new EllipseMeasureTracker(scene_, measureTools_, undoStack_, e);
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275 case GuiTool_AngleMeasure:
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276 LOG(ERROR) << "Not implemented yet!";
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277 return NULL;
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278 case GuiTool_CircleMeasure:
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279 LOG(ERROR) << "Not implemented yet!";
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280 return NULL;
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281 case GuiTool_EllipseMeasure:
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282 LOG(ERROR) << "Not implemented yet!";
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283 return NULL;
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284 default:
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285 throw OrthancException(ErrorCode_InternalError, "Wrong tool!");
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286 }
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287 }
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288 }
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289 default:
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290 return NULL;
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291 }
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292 }
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293
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294
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295 void TrackerSampleApp::PrepareScene()
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296 {
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297 // Texture of 2x2 size
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298 {
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299 Orthanc::Image i(Orthanc::PixelFormat_RGB24, 2, 2, false);
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300
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301 uint8_t* p = reinterpret_cast<uint8_t*>(i.GetRow(0));
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302 p[0] = 255;
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303 p[1] = 0;
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304 p[2] = 0;
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305
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306 p[3] = 0;
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307 p[4] = 255;
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308 p[5] = 0;
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309
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310 p = reinterpret_cast<uint8_t*>(i.GetRow(1));
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311 p[0] = 0;
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312 p[1] = 0;
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313 p[2] = 255;
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314
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315 p[3] = 255;
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316 p[4] = 0;
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317 p[5] = 0;
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318
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319 scene_.SetLayer(TEXTURE_2x2_1_ZINDEX, new ColorTextureSceneLayer(i));
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320
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321 std::auto_ptr<ColorTextureSceneLayer> l(new ColorTextureSceneLayer(i));
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322 l->SetOrigin(-3, 2);
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323 l->SetPixelSpacing(1.5, 1);
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324 l->SetAngle(20.0 / 180.0 * M_PI);
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325 scene_.SetLayer(TEXTURE_2x2_2_ZINDEX, l.release());
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326 }
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327
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328 // Texture of 1x1 size
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329 {
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330 Orthanc::Image i(Orthanc::PixelFormat_RGB24, 1, 1, false);
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331
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332 uint8_t* p = reinterpret_cast<uint8_t*>(i.GetRow(0));
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333 p[0] = 255;
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334 p[1] = 0;
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335 p[2] = 0;
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336
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337 std::auto_ptr<ColorTextureSceneLayer> l(new ColorTextureSceneLayer(i));
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338 l->SetOrigin(-2, 1);
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339 l->SetAngle(20.0 / 180.0 * M_PI);
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340 scene_.SetLayer(TEXTURE_1x1_ZINDEX, l.release());
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341 }
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342
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343 // Some lines
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344 {
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345 std::auto_ptr<PolylineSceneLayer> layer(new PolylineSceneLayer);
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346
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347 layer->SetThickness(1);
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348
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349 PolylineSceneLayer::Chain chain;
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350 chain.push_back(ScenePoint2D(0 - 0.5, 0 - 0.5));
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351 chain.push_back(ScenePoint2D(0 - 0.5, 2 - 0.5));
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352 chain.push_back(ScenePoint2D(2 - 0.5, 2 - 0.5));
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353 chain.push_back(ScenePoint2D(2 - 0.5, 0 - 0.5));
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354 layer->AddChain(chain, true);
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355
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356 chain.clear();
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357 chain.push_back(ScenePoint2D(-5, -5));
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358 chain.push_back(ScenePoint2D(5, -5));
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359 chain.push_back(ScenePoint2D(5, 5));
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360 chain.push_back(ScenePoint2D(-5, 5));
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361 layer->AddChain(chain, true);
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362
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363 double dy = 1.01;
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364 chain.clear();
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365 chain.push_back(ScenePoint2D(-4, -4));
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366 chain.push_back(ScenePoint2D(4, -4 + dy));
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367 chain.push_back(ScenePoint2D(-4, -4 + 2.0 * dy));
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368 chain.push_back(ScenePoint2D(4, 2));
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369 layer->AddChain(chain, false);
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370
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371 layer->SetColor(0, 255, 255);
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372 scene_.SetLayer(LINESET_1_ZINDEX, layer.release());
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373 }
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374
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375 // Some text
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376 {
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377 std::auto_ptr<TextSceneLayer> layer(new TextSceneLayer);
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378 layer->SetText("Hello");
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379 scene_.SetLayer(LINESET_2_ZINDEX, layer.release());
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380 }
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381 }
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382
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383
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384 void TrackerSampleApp::DisableTracker()
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385 {
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386 if (activeTracker_)
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387 {
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388 activeTracker_->Cancel();
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389 activeTracker_ = NULL;
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390 }
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391 }
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392
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393 void TrackerSampleApp::TakeScreenshot(const std::string& target,
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394 unsigned int canvasWidth,
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395 unsigned int canvasHeight)
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396 {
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397 // Take a screenshot, then save it as PNG file
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398 CairoCompositor compositor(scene_, canvasWidth, canvasHeight);
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399 compositor.SetFont(0, Orthanc::EmbeddedResources::UBUNTU_FONT, FONT_SIZE, Orthanc::Encoding_Latin1);
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400 compositor.Refresh();
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401
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402 Orthanc::ImageAccessor canvas;
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403 compositor.GetCanvas().GetReadOnlyAccessor(canvas);
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404
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405 Orthanc::Image png(Orthanc::PixelFormat_RGB24, canvas.GetWidth(), canvas.GetHeight(), false);
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406 Orthanc::ImageProcessing::Convert(png, canvas);
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407
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408 Orthanc::PngWriter writer;
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409 writer.WriteToFile(target, png);
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410 }
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411
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412
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413 FlexiblePointerTrackerPtr TrackerSampleApp::TrackerHitTest(const PointerEvent & e)
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414 {
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415 // std::vector<MeasureToolPtr> measureTools_;
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416 return nullptr;
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417 }
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418
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419
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420
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421 }
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