Mercurial > hg > orthanc-stone
annotate Samples/Sdl/BasicScene.cpp @ 890:77c96ba899f9
removing OpenGLCompositor::UpdateSize()
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 10 Jul 2019 15:23:13 +0200 |
| parents | e3c56d4f863f |
| children | 0aff28f15ea2 |
| rev | line source |
|---|---|
| 600 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
| 5 * Copyright (C) 2017-2019 Osimis S.A., Belgium | |
| 6 * | |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU Affero General Public License | |
| 9 * as published by the Free Software Foundation, either version 3 of | |
| 10 * the License, or (at your option) any later version. | |
| 11 * | |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 * Affero General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Affero General Public License | |
| 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 // From Stone | |
| 23 #include "../../Applications/Sdl/SdlOpenGLWindow.h" | |
| 24 #include "../../Framework/Scene2D/CairoCompositor.h" | |
|
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OrthancStone::StoneInitialize()
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25 #include "../../Framework/Scene2D/ColorTextureSceneLayer.h" |
| 600 | 26 #include "../../Framework/Scene2D/OpenGLCompositor.h" |
| 27 #include "../../Framework/Scene2D/PanSceneTracker.h" | |
| 28 #include "../../Framework/Scene2D/RotateSceneTracker.h" | |
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29 #include "../../Framework/Scene2D/Scene2D.h" |
| 600 | 30 #include "../../Framework/Scene2D/ZoomSceneTracker.h" |
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31 #include "../../Framework/Scene2DViewport/ViewportController.h" |
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32 #include "../../Framework/Scene2DViewport/UndoStack.h" |
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33 |
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OrthancStone::StoneInitialize()
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34 #include "../../Framework/StoneInitialization.h" |
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35 #include "../../Framework/Messages/MessageBroker.h" |
| 600 | 36 |
| 37 // From Orthanc framework | |
| 38 #include <Core/Logging.h> | |
| 39 #include <Core/OrthancException.h> | |
| 40 #include <Core/Images/Image.h> | |
| 41 #include <Core/Images/ImageProcessing.h> | |
| 42 #include <Core/Images/PngWriter.h> | |
| 43 | |
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44 #include <boost/make_shared.hpp> |
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45 #include <boost/ref.hpp> |
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46 |
| 600 | 47 #include <SDL.h> |
| 48 #include <stdio.h> | |
| 49 | |
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50 static const unsigned int FONT_SIZE = 32; |
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51 static const int LAYER_POSITION = 150; |
| 600 | 52 |
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53 void PrepareScene(boost::shared_ptr<OrthancStone::ViewportController> controller) |
| 600 | 54 { |
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55 using namespace OrthancStone; |
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56 Scene2D& scene(*controller->GetScene()); |
| 600 | 57 // Texture of 2x2 size |
| 58 { | |
| 59 Orthanc::Image i(Orthanc::PixelFormat_RGB24, 2, 2, false); | |
| 60 | |
| 61 uint8_t *p = reinterpret_cast<uint8_t*>(i.GetRow(0)); | |
| 62 p[0] = 255; | |
| 63 p[1] = 0; | |
| 64 p[2] = 0; | |
| 65 | |
| 66 p[3] = 0; | |
| 67 p[4] = 255; | |
| 68 p[5] = 0; | |
| 69 | |
| 70 p = reinterpret_cast<uint8_t*>(i.GetRow(1)); | |
| 71 p[0] = 0; | |
| 72 p[1] = 0; | |
| 73 p[2] = 255; | |
| 74 | |
| 75 p[3] = 255; | |
| 76 p[4] = 0; | |
| 77 p[5] = 0; | |
| 78 | |
| 79 scene.SetLayer(12, new ColorTextureSceneLayer(i)); | |
| 80 | |
| 81 std::auto_ptr<ColorTextureSceneLayer> l(new ColorTextureSceneLayer(i)); | |
| 82 l->SetOrigin(-3, 2); | |
| 83 l->SetPixelSpacing(1.5, 1); | |
| 84 l->SetAngle(20.0 / 180.0 * M_PI); | |
| 85 scene.SetLayer(14, l.release()); | |
| 86 } | |
| 87 | |
| 88 // Texture of 1x1 size | |
| 89 { | |
| 90 Orthanc::Image i(Orthanc::PixelFormat_RGB24, 1, 1, false); | |
| 91 | |
| 92 uint8_t *p = reinterpret_cast<uint8_t*>(i.GetRow(0)); | |
| 93 p[0] = 255; | |
| 94 p[1] = 0; | |
| 95 p[2] = 0; | |
| 96 | |
| 97 std::auto_ptr<ColorTextureSceneLayer> l(new ColorTextureSceneLayer(i)); | |
| 98 l->SetOrigin(-2, 1); | |
| 99 l->SetAngle(20.0 / 180.0 * M_PI); | |
| 100 scene.SetLayer(13, l.release()); | |
| 101 } | |
| 102 | |
| 103 // Some lines | |
| 104 { | |
| 105 std::auto_ptr<PolylineSceneLayer> layer(new PolylineSceneLayer); | |
| 106 | |
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107 layer->SetThickness(10); |
| 600 | 108 |
| 109 PolylineSceneLayer::Chain chain; | |
| 110 chain.push_back(ScenePoint2D(0 - 0.5, 0 - 0.5)); | |
| 111 chain.push_back(ScenePoint2D(0 - 0.5, 2 - 0.5)); | |
| 112 chain.push_back(ScenePoint2D(2 - 0.5, 2 - 0.5)); | |
| 113 chain.push_back(ScenePoint2D(2 - 0.5, 0 - 0.5)); | |
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114 layer->AddChain(chain, true, 255, 0, 0); |
| 600 | 115 |
| 116 chain.clear(); | |
| 117 chain.push_back(ScenePoint2D(-5, -5)); | |
| 118 chain.push_back(ScenePoint2D(5, -5)); | |
| 119 chain.push_back(ScenePoint2D(5, 5)); | |
| 120 chain.push_back(ScenePoint2D(-5, 5)); | |
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121 layer->AddChain(chain, true, 0, 255, 0); |
| 600 | 122 |
| 123 double dy = 1.01; | |
| 124 chain.clear(); | |
| 125 chain.push_back(ScenePoint2D(-4, -4)); | |
| 126 chain.push_back(ScenePoint2D(4, -4 + dy)); | |
| 127 chain.push_back(ScenePoint2D(-4, -4 + 2.0 * dy)); | |
| 128 chain.push_back(ScenePoint2D(4, 2)); | |
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129 layer->AddChain(chain, false, 0, 0, 255); |
| 600 | 130 |
| 131 scene.SetLayer(50, layer.release()); | |
| 132 } | |
| 133 | |
| 134 // Some text | |
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135 { |
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136 std::auto_ptr<TextSceneLayer> layer(new TextSceneLayer); |
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137 layer->SetText("Hello"); |
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138 scene.SetLayer(100, layer.release()); |
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139 } |
| 600 | 140 } |
| 141 | |
| 142 | |
| 143 void TakeScreenshot(const std::string& target, | |
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144 const OrthancStone::Scene2D& scene, |
| 600 | 145 unsigned int canvasWidth, |
| 146 unsigned int canvasHeight) | |
| 147 { | |
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148 using namespace OrthancStone; |
| 600 | 149 // Take a screenshot, then save it as PNG file |
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150 CairoCompositor compositor(scene, canvasWidth, canvasHeight); |
| 600 | 151 compositor.SetFont(0, Orthanc::EmbeddedResources::UBUNTU_FONT, FONT_SIZE, Orthanc::Encoding_Latin1); |
| 152 compositor.Refresh(); | |
| 153 | |
| 154 Orthanc::ImageAccessor canvas; | |
| 155 compositor.GetCanvas().GetReadOnlyAccessor(canvas); | |
| 156 | |
| 157 Orthanc::Image png(Orthanc::PixelFormat_RGB24, canvas.GetWidth(), canvas.GetHeight(), false); | |
| 158 Orthanc::ImageProcessing::Convert(png, canvas); | |
| 159 | |
| 160 Orthanc::PngWriter writer; | |
| 161 writer.WriteToFile(target, png); | |
| 162 } | |
| 163 | |
| 164 | |
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165 void HandleApplicationEvent(boost::shared_ptr<OrthancStone::ViewportController> controller, |
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166 const OrthancStone::OpenGLCompositor& compositor, |
| 600 | 167 const SDL_Event& event, |
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168 boost::shared_ptr<OrthancStone::IFlexiblePointerTracker>& activeTracker) |
| 600 | 169 { |
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170 using namespace OrthancStone; |
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171 Scene2D& scene(*controller->GetScene()); |
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172 if (event.type == SDL_MOUSEMOTION) |
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173 { |
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174 int scancodeCount = 0; |
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175 const uint8_t* keyboardState = SDL_GetKeyboardState(&scancodeCount); |
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176 |
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177 if (activeTracker.get() == NULL && |
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178 SDL_SCANCODE_LCTRL < scancodeCount && |
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179 keyboardState[SDL_SCANCODE_LCTRL]) |
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180 { |
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181 // The "left-ctrl" key is down, while no tracker is present |
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182 |
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183 PointerEvent e; |
| 617 | 184 e.AddPosition(compositor.GetPixelCenterCoordinates(event.button.x, event.button.y)); |
| 185 | |
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186 ScenePoint2D p = e.GetMainPosition().Apply(scene.GetCanvasToSceneTransform()); |
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187 |
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188 char buf[64]; |
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189 sprintf(buf, "(%0.02f,%0.02f)", p.GetX(), p.GetY()); |
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190 |
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191 if (scene.HasLayer(LAYER_POSITION)) |
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192 { |
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193 TextSceneLayer& layer = |
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194 dynamic_cast<TextSceneLayer&>(scene.GetLayer(LAYER_POSITION)); |
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195 layer.SetText(buf); |
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196 layer.SetPosition(p.GetX(), p.GetY()); |
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197 } |
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198 else |
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199 { |
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200 std::auto_ptr<TextSceneLayer> |
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201 layer(new TextSceneLayer); |
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202 layer->SetColor(0, 255, 0); |
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203 layer->SetText(buf); |
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204 layer->SetBorder(20); |
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205 layer->SetAnchor(BitmapAnchor_BottomCenter); |
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206 layer->SetPosition(p.GetX(), p.GetY()); |
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207 scene.SetLayer(LAYER_POSITION, layer.release()); |
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208 } |
| 617 | 209 } |
| 210 else | |
| 211 { | |
| 212 scene.DeleteLayer(LAYER_POSITION); | |
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213 } |
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214 } |
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215 else if (event.type == SDL_MOUSEBUTTONDOWN) |
| 600 | 216 { |
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217 PointerEvent e; |
| 617 | 218 e.AddPosition(compositor.GetPixelCenterCoordinates(event.button.x, event.button.y)); |
| 600 | 219 |
| 220 switch (event.button.button) | |
| 221 { | |
| 222 case SDL_BUTTON_MIDDLE: | |
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223 activeTracker = boost::make_shared<PanSceneTracker>(controller, e); |
| 600 | 224 break; |
| 225 | |
| 226 case SDL_BUTTON_RIGHT: | |
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227 activeTracker = boost::make_shared<ZoomSceneTracker>(controller, |
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228 e, compositor.GetCanvasHeight()); |
| 600 | 229 break; |
| 230 | |
| 231 case SDL_BUTTON_LEFT: | |
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232 activeTracker = boost::make_shared<RotateSceneTracker>(controller, e); |
| 600 | 233 break; |
| 234 | |
| 235 default: | |
| 236 break; | |
| 237 } | |
| 238 } | |
| 239 else if (event.type == SDL_KEYDOWN && | |
| 240 event.key.repeat == 0 /* Ignore key bounce */) | |
| 241 { | |
| 242 switch (event.key.keysym.sym) | |
| 243 { | |
| 244 case SDLK_s: | |
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245 controller->FitContent(compositor.GetCanvasWidth(), |
| 617 | 246 compositor.GetCanvasHeight()); |
| 600 | 247 break; |
| 248 | |
| 249 case SDLK_c: | |
| 617 | 250 TakeScreenshot("screenshot.png", scene, |
| 251 compositor.GetCanvasWidth(), | |
| 252 compositor.GetCanvasHeight()); | |
| 600 | 253 break; |
| 254 | |
| 255 default: | |
| 256 break; | |
| 257 } | |
| 258 } | |
| 259 } | |
| 260 | |
| 261 | |
| 262 static void GLAPIENTRY | |
| 263 OpenGLMessageCallback(GLenum source, | |
| 264 GLenum type, | |
| 265 GLuint id, | |
| 266 GLenum severity, | |
| 267 GLsizei length, | |
| 268 const GLchar* message, | |
| 269 const void* userParam ) | |
| 270 { | |
| 271 if (severity != GL_DEBUG_SEVERITY_NOTIFICATION) | |
| 272 { | |
| 273 fprintf(stderr, "GL CALLBACK: %s type = 0x%x, severity = 0x%x, message = %s\n", | |
| 274 ( type == GL_DEBUG_TYPE_ERROR ? "** GL ERROR **" : "" ), | |
| 275 type, severity, message ); | |
| 276 } | |
| 277 } | |
| 278 | |
| 279 | |
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280 void Run(boost::shared_ptr<OrthancStone::ViewportController> controller) |
| 600 | 281 { |
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282 using namespace OrthancStone; |
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283 SdlOpenGLWindow window("Hello", 1024, 768); |
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284 |
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285 controller->FitContent(window.GetCanvasWidth(), window.GetCanvasHeight()); |
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286 |
| 600 | 287 glEnable(GL_DEBUG_OUTPUT); |
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288 glDebugMessageCallback(OpenGLMessageCallback, 0); |
| 600 | 289 |
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290 OpenGLCompositor compositor(window, *controller->GetScene()); |
| 600 | 291 compositor.SetFont(0, Orthanc::EmbeddedResources::UBUNTU_FONT, |
| 292 FONT_SIZE, Orthanc::Encoding_Latin1); | |
| 293 | |
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294 boost::shared_ptr<IFlexiblePointerTracker> tracker; |
| 600 | 295 |
| 296 bool stop = false; | |
| 297 while (!stop) | |
| 298 { | |
| 299 compositor.Refresh(); | |
| 300 | |
| 301 SDL_Event event; | |
| 302 while (!stop && | |
| 303 SDL_PollEvent(&event)) | |
| 304 { | |
| 305 if (event.type == SDL_QUIT) | |
| 306 { | |
| 307 stop = true; | |
| 308 break; | |
| 309 } | |
| 310 else if (event.type == SDL_MOUSEMOTION) | |
| 311 { | |
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312 if (tracker) |
| 600 | 313 { |
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314 PointerEvent e; |
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315 e.AddPosition(compositor.GetPixelCenterCoordinates( |
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316 event.button.x, event.button.y)); |
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317 tracker->PointerMove(e); |
| 600 | 318 } |
| 319 } | |
| 320 else if (event.type == SDL_MOUSEBUTTONUP) | |
| 321 { | |
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322 if (tracker) |
| 600 | 323 { |
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324 PointerEvent e; |
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325 e.AddPosition(compositor.GetPixelCenterCoordinates( |
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326 event.button.x, event.button.y)); |
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327 tracker->PointerUp(e); |
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328 if(!tracker->IsAlive()) |
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329 tracker.reset(); |
| 600 | 330 } |
| 331 } | |
| 332 else if (event.type == SDL_WINDOWEVENT && | |
| 333 event.window.event == SDL_WINDOWEVENT_SIZE_CHANGED) | |
| 334 { | |
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335 tracker.reset(); |
| 600 | 336 } |
| 337 else if (event.type == SDL_KEYDOWN && | |
| 338 event.key.repeat == 0 /* Ignore key bounce */) | |
| 339 { | |
| 340 switch (event.key.keysym.sym) | |
| 341 { | |
| 342 case SDLK_f: | |
| 343 window.GetWindow().ToggleMaximize(); | |
| 344 break; | |
| 345 | |
| 346 case SDLK_q: | |
| 347 stop = true; | |
| 348 break; | |
| 349 | |
| 350 default: | |
| 351 break; | |
| 352 } | |
| 353 } | |
|
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354 |
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355 HandleApplicationEvent(controller, compositor, event, tracker); |
| 600 | 356 } |
| 357 | |
| 358 SDL_Delay(1); | |
| 359 } | |
| 360 } | |
| 361 | |
| 362 | |
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363 |
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364 |
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365 /** |
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366 * IMPORTANT: The full arguments to "main()" are needed for SDL on |
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367 * Windows. Otherwise, one gets the linking error "undefined reference |
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368 * to `SDL_main'". https://wiki.libsdl.org/FAQWindows |
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369 **/ |
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370 int main(int argc, char* argv[]) |
| 600 | 371 { |
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372 using namespace OrthancStone; |
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373 StoneInitialize(); |
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374 Orthanc::Logging::EnableInfoLevel(true); |
| 600 | 375 |
| 376 try | |
| 377 { | |
|
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378 MessageBroker broker; |
|
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379 boost::shared_ptr<UndoStack> undoStack(new UndoStack); |
|
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380 boost::shared_ptr<ViewportController> controller = boost::make_shared<ViewportController>( |
|
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381 undoStack, boost::ref(broker)); |
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382 PrepareScene(controller); |
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383 Run(controller); |
| 600 | 384 } |
| 385 catch (Orthanc::OrthancException& e) | |
| 386 { | |
| 387 LOG(ERROR) << "EXCEPTION: " << e.What(); | |
| 388 } | |
| 389 | |
|
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390 StoneFinalize(); |
| 600 | 391 |
| 392 return 0; | |
| 393 } |