Mercurial > hg > orthanc-stone
comparison Samples/Sdl/BasicScene.cpp @ 885:56e4e9281076 am-dev
sharing code between Qt/SDL BasiceScene sample
author | Alain Mazy <alain@mazy.be> |
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date | Tue, 09 Jul 2019 16:44:25 +0200 |
parents | 31319fe867b9 |
children | 9c2f6d6b9f4a |
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884:aad5ccf1be10 | 885:56e4e9281076 |
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19 **/ | 19 **/ |
20 | 20 |
21 | 21 |
22 // From Stone | 22 // From Stone |
23 #include "../../Applications/Sdl/SdlOpenGLWindow.h" | 23 #include "../../Applications/Sdl/SdlOpenGLWindow.h" |
24 #include "../../Framework/Scene2D/CairoCompositor.h" | |
25 #include "../../Framework/Scene2D/ColorTextureSceneLayer.h" | |
26 #include "../../Framework/Scene2D/OpenGLCompositor.h" | 24 #include "../../Framework/Scene2D/OpenGLCompositor.h" |
27 #include "../../Framework/Scene2D/PanSceneTracker.h" | |
28 #include "../../Framework/Scene2D/RotateSceneTracker.h" | |
29 #include "../../Framework/Scene2D/Scene2D.h" | |
30 #include "../../Framework/Scene2D/ZoomSceneTracker.h" | |
31 #include "../../Framework/Scene2DViewport/ViewportController.h" | |
32 #include "../../Framework/Scene2DViewport/UndoStack.h" | 25 #include "../../Framework/Scene2DViewport/UndoStack.h" |
33 | |
34 #include "../../Framework/StoneInitialization.h" | 26 #include "../../Framework/StoneInitialization.h" |
35 #include "../../Framework/Messages/MessageBroker.h" | 27 #include "../../Framework/Messages/MessageBroker.h" |
36 | 28 |
37 // From Orthanc framework | 29 // From Orthanc framework |
38 #include <Core/Logging.h> | 30 #include <Core/Logging.h> |
39 #include <Core/OrthancException.h> | 31 #include <Core/OrthancException.h> |
40 #include <Core/Images/Image.h> | |
41 #include <Core/Images/ImageProcessing.h> | |
42 #include <Core/Images/PngWriter.h> | |
43 | 32 |
44 #include <boost/make_shared.hpp> | 33 #include <boost/make_shared.hpp> |
45 #include <boost/ref.hpp> | 34 #include <boost/ref.hpp> |
46 | 35 |
47 #include <SDL.h> | 36 #include <SDL.h> |
48 #include <stdio.h> | 37 #include <stdio.h> |
49 | 38 |
50 static const unsigned int FONT_SIZE = 32; | 39 |
51 static const int LAYER_POSITION = 150; | 40 #include "../Shared/SharedBasicScene.h" |
52 | 41 |
53 void PrepareScene(boost::shared_ptr<OrthancStone::ViewportController> controller) | 42 using namespace OrthancStone; |
43 | |
44 boost::shared_ptr<BasicScene2DInteractor> interactor; | |
45 | |
46 void HandleApplicationEvent(boost::shared_ptr<OrthancStone::ViewportController> controller, | |
47 const OrthancStone::OpenGLCompositor& compositor, | |
48 const SDL_Event& event) | |
54 { | 49 { |
55 using namespace OrthancStone; | 50 using namespace OrthancStone; |
56 Scene2D& scene(*controller->GetScene()); | 51 Scene2D& scene(*controller->GetScene()); |
57 // Texture of 2x2 size | 52 if (event.type == SDL_MOUSEBUTTONDOWN || event.type == SDL_MOUSEBUTTONUP || event.type == SDL_MOUSEMOTION) |
58 { | 53 { |
59 Orthanc::Image i(Orthanc::PixelFormat_RGB24, 2, 2, false); | 54 // TODO: this code is copy/pasted from GuiAdapter::Run() -> find the right place |
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 | |
107 layer->SetThickness(10); | |
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)); | |
114 layer->AddChain(chain, true, 255, 0, 0); | |
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)); | |
121 layer->AddChain(chain, true, 0, 255, 0); | |
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)); | |
129 layer->AddChain(chain, false, 0, 0, 255); | |
130 | |
131 scene.SetLayer(50, layer.release()); | |
132 } | |
133 | |
134 // Some text | |
135 { | |
136 std::auto_ptr<TextSceneLayer> layer(new TextSceneLayer); | |
137 layer->SetText("Hello"); | |
138 scene.SetLayer(100, layer.release()); | |
139 } | |
140 } | |
141 | |
142 | |
143 void TakeScreenshot(const std::string& target, | |
144 const OrthancStone::Scene2D& scene, | |
145 unsigned int canvasWidth, | |
146 unsigned int canvasHeight) | |
147 { | |
148 using namespace OrthancStone; | |
149 // Take a screenshot, then save it as PNG file | |
150 CairoCompositor compositor(scene, canvasWidth, canvasHeight); | |
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 | |
165 void HandleApplicationEvent(boost::shared_ptr<OrthancStone::ViewportController> controller, | |
166 const OrthancStone::OpenGLCompositor& compositor, | |
167 const SDL_Event& event, | |
168 boost::shared_ptr<OrthancStone::IFlexiblePointerTracker>& activeTracker) | |
169 { | |
170 using namespace OrthancStone; | |
171 Scene2D& scene(*controller->GetScene()); | |
172 if (event.type == SDL_MOUSEMOTION) | |
173 { | |
174 int scancodeCount = 0; | 55 int scancodeCount = 0; |
175 const uint8_t* keyboardState = SDL_GetKeyboardState(&scancodeCount); | 56 const uint8_t* keyboardState = SDL_GetKeyboardState(&scancodeCount); |
176 | 57 bool ctrlPressed(false); |
177 if (activeTracker.get() == NULL && | 58 bool shiftPressed(false); |
178 SDL_SCANCODE_LCTRL < scancodeCount && | 59 bool altPressed(false); |
179 keyboardState[SDL_SCANCODE_LCTRL]) | 60 |
180 { | 61 if (SDL_SCANCODE_LCTRL < scancodeCount && keyboardState[SDL_SCANCODE_LCTRL]) |
181 // The "left-ctrl" key is down, while no tracker is present | 62 ctrlPressed = true; |
182 | 63 if (SDL_SCANCODE_RCTRL < scancodeCount && keyboardState[SDL_SCANCODE_RCTRL]) |
183 PointerEvent e; | 64 ctrlPressed = true; |
184 e.AddPosition(compositor.GetPixelCenterCoordinates(event.button.x, event.button.y)); | 65 if (SDL_SCANCODE_LSHIFT < scancodeCount && keyboardState[SDL_SCANCODE_LSHIFT]) |
185 | 66 shiftPressed = true; |
186 ScenePoint2D p = e.GetMainPosition().Apply(scene.GetCanvasToSceneTransform()); | 67 if (SDL_SCANCODE_RSHIFT < scancodeCount && keyboardState[SDL_SCANCODE_RSHIFT]) |
187 | 68 shiftPressed = true; |
188 char buf[64]; | 69 if (SDL_SCANCODE_LALT < scancodeCount && keyboardState[SDL_SCANCODE_LALT]) |
189 sprintf(buf, "(%0.02f,%0.02f)", p.GetX(), p.GetY()); | 70 altPressed = true; |
190 | 71 |
191 if (scene.HasLayer(LAYER_POSITION)) | 72 GuiAdapterMouseEvent guiEvent; |
192 { | 73 ConvertFromPlatform(guiEvent, ctrlPressed, shiftPressed, altPressed, event); |
193 TextSceneLayer& layer = | 74 PointerEvent pointerEvent; |
194 dynamic_cast<TextSceneLayer&>(scene.GetLayer(LAYER_POSITION)); | 75 pointerEvent.AddPosition(compositor.GetPixelCenterCoordinates(event.button.x, event.button.y)); |
195 layer.SetText(buf); | 76 |
196 layer.SetPosition(p.GetX(), p.GetY()); | 77 interactor->OnMouseEvent(guiEvent, pointerEvent); |
197 } | 78 return; |
198 else | 79 } |
199 { | 80 else if ((event.type == SDL_KEYDOWN || event.type == SDL_KEYUP) && event.key.repeat == 0 /* Ignore key bounce */) |
200 std::auto_ptr<TextSceneLayer> | 81 { |
201 layer(new TextSceneLayer); | 82 GuiAdapterKeyboardEvent guiEvent; |
202 layer->SetColor(0, 255, 0); | 83 ConvertFromPlatform(guiEvent, event); |
203 layer->SetText(buf); | 84 |
204 layer->SetBorder(20); | 85 interactor->OnKeyboardEvent(guiEvent); |
205 layer->SetAnchor(BitmapAnchor_BottomCenter); | 86 } |
206 layer->SetPosition(p.GetX(), p.GetY()); | 87 |
207 scene.SetLayer(LAYER_POSITION, layer.release()); | |
208 } | |
209 } | |
210 else | |
211 { | |
212 scene.DeleteLayer(LAYER_POSITION); | |
213 } | |
214 } | |
215 else if (event.type == SDL_MOUSEBUTTONDOWN) | |
216 { | |
217 PointerEvent e; | |
218 e.AddPosition(compositor.GetPixelCenterCoordinates(event.button.x, event.button.y)); | |
219 | |
220 switch (event.button.button) | |
221 { | |
222 case SDL_BUTTON_MIDDLE: | |
223 activeTracker = boost::make_shared<PanSceneTracker>(controller, e); | |
224 break; | |
225 | |
226 case SDL_BUTTON_RIGHT: | |
227 activeTracker = boost::make_shared<ZoomSceneTracker>(controller, | |
228 e, compositor.GetHeight()); | |
229 break; | |
230 | |
231 case SDL_BUTTON_LEFT: | |
232 activeTracker = boost::make_shared<RotateSceneTracker>(controller, e); | |
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: | |
245 controller->FitContent(compositor.GetWidth(), | |
246 compositor.GetHeight()); | |
247 break; | |
248 | |
249 case SDLK_c: | |
250 TakeScreenshot("screenshot.png", scene, | |
251 compositor.GetWidth(), | |
252 compositor.GetHeight()); | |
253 break; | |
254 | |
255 default: | |
256 break; | |
257 } | |
258 } | |
259 } | 88 } |
260 | 89 |
261 | 90 |
262 static void GLAPIENTRY | 91 static void GLAPIENTRY |
263 OpenGLMessageCallback(GLenum source, | 92 OpenGLMessageCallback(GLenum source, |
277 } | 106 } |
278 | 107 |
279 | 108 |
280 void Run(boost::shared_ptr<OrthancStone::ViewportController> controller) | 109 void Run(boost::shared_ptr<OrthancStone::ViewportController> controller) |
281 { | 110 { |
282 using namespace OrthancStone; | |
283 SdlOpenGLWindow window("Hello", 1024, 768); | 111 SdlOpenGLWindow window("Hello", 1024, 768); |
284 | 112 |
285 controller->FitContent(window.GetCanvasWidth(), window.GetCanvasHeight()); | 113 controller->FitContent(window.GetCanvasWidth(), window.GetCanvasHeight()); |
286 | 114 |
287 glEnable(GL_DEBUG_OUTPUT); | 115 glEnable(GL_DEBUG_OUTPUT); |
288 glDebugMessageCallback(OpenGLMessageCallback, 0); | 116 glDebugMessageCallback(OpenGLMessageCallback, 0); |
289 | 117 |
290 OpenGLCompositor compositor(window, *controller->GetScene()); | 118 boost::shared_ptr<OpenGLCompositor> compositor(new OpenGLCompositor(window, *controller->GetScene())); |
291 compositor.SetFont(0, Orthanc::EmbeddedResources::UBUNTU_FONT, | 119 compositor->SetFont(0, Orthanc::EmbeddedResources::UBUNTU_FONT, |
292 FONT_SIZE, Orthanc::Encoding_Latin1); | 120 BASIC_SCENE_FONT_SIZE, Orthanc::Encoding_Latin1); |
293 | 121 interactor->SetCompositor(compositor); |
294 boost::shared_ptr<IFlexiblePointerTracker> tracker; | |
295 | 122 |
296 bool stop = false; | 123 bool stop = false; |
297 while (!stop) | 124 while (!stop) |
298 { | 125 { |
299 compositor.Refresh(); | 126 compositor->Refresh(); |
300 | 127 |
301 SDL_Event event; | 128 SDL_Event event; |
302 while (!stop && | 129 while (!stop && |
303 SDL_PollEvent(&event)) | 130 SDL_PollEvent(&event)) |
304 { | 131 { |
305 if (event.type == SDL_QUIT) | 132 if (event.type == SDL_QUIT) |
306 { | 133 { |
307 stop = true; | 134 stop = true; |
308 break; | 135 break; |
309 } | 136 } |
310 else if (event.type == SDL_MOUSEMOTION) | |
311 { | |
312 if (tracker) | |
313 { | |
314 PointerEvent e; | |
315 e.AddPosition(compositor.GetPixelCenterCoordinates( | |
316 event.button.x, event.button.y)); | |
317 tracker->PointerMove(e); | |
318 } | |
319 } | |
320 else if (event.type == SDL_MOUSEBUTTONUP) | |
321 { | |
322 if (tracker) | |
323 { | |
324 PointerEvent e; | |
325 e.AddPosition(compositor.GetPixelCenterCoordinates( | |
326 event.button.x, event.button.y)); | |
327 tracker->PointerUp(e); | |
328 if(!tracker->IsAlive()) | |
329 tracker.reset(); | |
330 } | |
331 } | |
332 else if (event.type == SDL_WINDOWEVENT && | 137 else if (event.type == SDL_WINDOWEVENT && |
333 event.window.event == SDL_WINDOWEVENT_SIZE_CHANGED) | 138 event.window.event == SDL_WINDOWEVENT_SIZE_CHANGED) |
334 { | 139 { |
335 tracker.reset(); | 140 compositor->UpdateSize(); |
336 compositor.UpdateSize(); | |
337 } | 141 } |
338 else if (event.type == SDL_KEYDOWN && | 142 else if (event.type == SDL_KEYDOWN && |
339 event.key.repeat == 0 /* Ignore key bounce */) | 143 event.key.repeat == 0 /* Ignore key bounce */) |
340 { | 144 { |
341 switch (event.key.keysym.sym) | 145 switch (event.key.keysym.sym) |
351 default: | 155 default: |
352 break; | 156 break; |
353 } | 157 } |
354 } | 158 } |
355 | 159 |
356 HandleApplicationEvent(controller, compositor, event, tracker); | 160 HandleApplicationEvent(controller, *compositor, event); |
357 } | 161 } |
358 | 162 |
359 SDL_Delay(1); | 163 SDL_Delay(1); |
360 } | 164 } |
165 interactor.reset(); | |
361 } | 166 } |
362 | 167 |
363 | 168 |
364 | 169 |
365 | 170 |
378 { | 183 { |
379 MessageBroker broker; | 184 MessageBroker broker; |
380 boost::shared_ptr<UndoStack> undoStack(new UndoStack); | 185 boost::shared_ptr<UndoStack> undoStack(new UndoStack); |
381 boost::shared_ptr<ViewportController> controller = boost::make_shared<ViewportController>( | 186 boost::shared_ptr<ViewportController> controller = boost::make_shared<ViewportController>( |
382 undoStack, boost::ref(broker)); | 187 undoStack, boost::ref(broker)); |
188 interactor.reset(new BasicScene2DInteractor(controller)); | |
383 PrepareScene(controller); | 189 PrepareScene(controller); |
384 Run(controller); | 190 Run(controller); |
385 } | 191 } |
386 catch (Orthanc::OrthancException& e) | 192 catch (Orthanc::OrthancException& e) |
387 { | 193 { |