5 #include <osg/GraphicsContext>
7 #include <osg/Viewport>
8 #include <osgViewer/Viewer>
11 #include <Main/fg_props.hxx>
12 #include "CameraGroup.hxx"
13 #include "FGEventHandler.hxx"
14 #include "WindowSystemAdapter.hxx"
15 #include "renderer.hxx"
17 #if !defined(X_DISPLAY_MISSING)
18 #define X_DOUBLE_SCROLL_BUG 1
22 // hack - during interactive resize on Mac, OSG queues and then flushes
23 // a large number of resize events, without doing any drawing.
24 extern void puCleanUpJunk ( void ) ;
29 const int displayStatsKey = 1;
30 const int printStatsKey = 2;
33 // The manipulator is responsible for updating a Viewer's camera. Its
34 // event handling method is also a convenient place to run the FG idle
37 FGEventHandler::FGEventHandler() :
41 mouseMotionHandler(0),
42 statsHandler(new FGStatsHandler),
43 statsEvent(new osgGA::GUIEventAdapter),
44 statsType(osgViewer::StatsHandler::NO_STATS),
48 scrollButtonPressed(false),
49 changeStatsCameraRenderOrder(false)
51 using namespace osgGA;
52 statsHandler->setKeyEventTogglesOnScreenStats(displayStatsKey);
53 statsHandler->setKeyEventPrintsOutStats(printStatsKey);
54 statsEvent->setEventType(GUIEventAdapter::KEYDOWN);
56 // OSG reports NumPad keycodes independent of the NumLock modifier.
57 // Both KP-4 and KP-Left are reported as KEY_KP_Left (0xff96), so we
58 // have to generate the locked keys ourselves.
59 numlockKeyMap[GUIEventAdapter::KEY_KP_Insert] = '0';
60 numlockKeyMap[GUIEventAdapter::KEY_KP_End] = '1';
61 numlockKeyMap[GUIEventAdapter::KEY_KP_Down] = '2';
62 numlockKeyMap[GUIEventAdapter::KEY_KP_Page_Down] = '3';
63 numlockKeyMap[GUIEventAdapter::KEY_KP_Left] = '4';
64 numlockKeyMap[GUIEventAdapter::KEY_KP_Begin] = '5';
65 numlockKeyMap[GUIEventAdapter::KEY_KP_Right] = '6';
66 numlockKeyMap[GUIEventAdapter::KEY_KP_Home] = '7';
67 numlockKeyMap[GUIEventAdapter::KEY_KP_Up] = '8';
68 numlockKeyMap[GUIEventAdapter::KEY_KP_Page_Up] = '9';
69 numlockKeyMap[GUIEventAdapter::KEY_KP_Delete] = '.';
71 // The comment above is incorrect on Mac osgViewer, at least. So we
72 // need to map the 'num-locked' key codes to real values.
73 numlockKeyMap[GUIEventAdapter::KEY_KP_0] = '0';
74 numlockKeyMap[GUIEventAdapter::KEY_KP_1] = '1';
75 numlockKeyMap[GUIEventAdapter::KEY_KP_2] = '2';
76 numlockKeyMap[GUIEventAdapter::KEY_KP_3] = '3';
77 numlockKeyMap[GUIEventAdapter::KEY_KP_4] = '4';
78 numlockKeyMap[GUIEventAdapter::KEY_KP_5] = '5';
79 numlockKeyMap[GUIEventAdapter::KEY_KP_6] = '6';
80 numlockKeyMap[GUIEventAdapter::KEY_KP_7] = '7';
81 numlockKeyMap[GUIEventAdapter::KEY_KP_8] = '8';
82 numlockKeyMap[GUIEventAdapter::KEY_KP_9] = '9';
83 numlockKeyMap[GUIEventAdapter::KEY_KP_Decimal] = '.';
86 // mapping when NumLock is off
87 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Insert] = PU_KEY_INSERT;
88 noNumlockKeyMap[GUIEventAdapter::KEY_KP_End] = PU_KEY_END;
89 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Down] = PU_KEY_DOWN;
90 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Page_Down] = PU_KEY_PAGE_DOWN;
91 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Left] = PU_KEY_LEFT;
92 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Begin] = '5';
93 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Right] = PU_KEY_RIGHT;
94 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Home] = PU_KEY_HOME;
95 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Up] = PU_KEY_UP;
96 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Page_Up] = PU_KEY_PAGE_UP;
97 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Delete] = 127;
99 for (int i = 0; i < 128; i++)
102 _display = fgGetNode("/sim/rendering/on-screen-statistics", true);
103 _print = fgGetNode("/sim/rendering/print-statistics", true);
108 // Translate OSG modifier mask to FG modifier mask.
109 int osgToFGModifiers(int modifiers)
112 if (modifiers & osgGA::GUIEventAdapter::MODKEY_SHIFT)
113 result |= KEYMOD_SHIFT;
115 if (modifiers & osgGA::GUIEventAdapter::MODKEY_CTRL)
116 result |= KEYMOD_CTRL;
118 if (modifiers & osgGA::GUIEventAdapter::MODKEY_ALT)
119 result |= KEYMOD_ALT;
121 if (modifiers & osgGA::GUIEventAdapter::MODKEY_META)
122 result |= KEYMOD_META;
124 if (modifiers & osgGA::GUIEventAdapter::MODKEY_SUPER)
125 result |= KEYMOD_SUPER;
127 if (modifiers & osgGA::GUIEventAdapter::MODKEY_HYPER)
128 result |= KEYMOD_HYPER;
134 void FGEventHandler::init(const osgGA::GUIEventAdapter& ea,
135 osgGA::GUIActionAdapter& us)
137 currentModifiers = osgToFGModifiers(ea.getModKeyMask());
138 (void)handle(ea, us);
142 // Calculate event coordinates in the viewport of the GUI camera, if
143 // possible. Otherwise return false and (-1, -1).
147 eventToViewport(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us,
153 const osg::GraphicsContext* eventGC = ea.getGraphicsContext();
155 return false; // TODO how can this happen?
156 const osg::GraphicsContext::Traits* traits = eventGC->getTraits();
157 osg::Camera* guiCamera = getGUICamera(CameraGroup::getDefault());
160 osg::Viewport* vport = guiCamera->getViewport();
164 // Scale x, y to the dimensions of the window
165 double wx = (((ea.getX() - ea.getXmin()) / (ea.getXmax() - ea.getXmin()))
166 * (float)traits->width);
167 double wy = (((ea.getY() - ea.getYmin()) / (ea.getYmax() - ea.getYmin()))
168 * (float)traits->height);
169 if (vport->x() <= wx && wx <= vport->x() + vport->width()
170 && vport->y() <= wy && wy <= vport->y() + vport->height()) {
171 // Finally, into viewport coordinates. Change y to "increasing
174 y = vport->height() - (wy - vport->y());
182 bool FGEventHandler::handle(const osgGA::GUIEventAdapter& ea,
183 osgGA::GUIActionAdapter& us)
185 // Event handlers seem to be called even if the according event has already
186 // been handled. Already handled events shouldn't be handled multiple times
187 // so we need to exit here manually.
188 if( ea.getHandled() )
194 switch (ea.getEventType()) {
195 case osgGA::GUIEventAdapter::FRAME:
199 case osgGA::GUIEventAdapter::KEYDOWN:
200 case osgGA::GUIEventAdapter::KEYUP:
203 handleKey(ea, key, modmask);
204 eventToViewport(ea, us, x, y);
206 (*keyHandler)(key, modmask, x, y);
209 case osgGA::GUIEventAdapter::PUSH:
210 case osgGA::GUIEventAdapter::RELEASE:
212 bool mainWindow = eventToViewport(ea, us, x, y);
214 switch (ea.getButton()) {
215 case osgGA::GUIEventAdapter::LEFT_MOUSE_BUTTON:
218 case osgGA::GUIEventAdapter::MIDDLE_MOUSE_BUTTON:
221 case osgGA::GUIEventAdapter::RIGHT_MOUSE_BUTTON:
225 if (mouseClickHandler)
226 (*mouseClickHandler)(button,
228 == osgGA::GUIEventAdapter::RELEASE), x, y, mainWindow, &ea);
231 case osgGA::GUIEventAdapter::SCROLL:
233 bool mainWindow = eventToViewport(ea, us, x, y);
234 #ifdef X_DOUBLE_SCROLL_BUG
235 scrollButtonPressed = !scrollButtonPressed;
236 if (!scrollButtonPressed) // Drop the button release event
240 if (ea.getScrollingMotion() == osgGA::GUIEventAdapter::SCROLL_2D) {
241 if (ea.getScrollingDeltaY() > 0)
243 else if (ea.getScrollingDeltaY() < 0)
247 } else if (ea.getScrollingMotion() == osgGA::GUIEventAdapter::SCROLL_UP)
251 if (mouseClickHandler && button != -1) {
252 (*mouseClickHandler)(button, 0, x, y, mainWindow, &ea);
253 (*mouseClickHandler)(button, 1, x, y, mainWindow, &ea);
257 case osgGA::GUIEventAdapter::MOVE:
258 case osgGA::GUIEventAdapter::DRAG:
259 // If we warped the mouse, then disregard all pointer motion
260 // events for this frame. We really want to flush the event
261 // queue of mouse events, but don't have the ability to do
262 // that with osgViewer.
265 if (eventToViewport(ea, us, x, y) && mouseMotionHandler)
266 (*mouseMotionHandler)(x, y, &ea);
268 case osgGA::GUIEventAdapter::RESIZE:
269 SG_LOG(SG_VIEW, SG_DEBUG, "FGEventHandler::handle: RESIZE event " << ea.getWindowHeight() << " x " << ea.getWindowWidth() << ", resizable: " << resizable);
270 CameraGroup::getDefault()->resized();
272 globals->get_renderer()->resize(ea.getWindowWidth(), ea.getWindowHeight());
273 statsHandler->handle(ea, us);
275 // work around OSG Cocoa-Viewer issue with resize event handling,
276 // where resize events are queued up, then dispatched in a batch, with
277 // no interveningd drawing calls.
281 case osgGA::GUIEventAdapter::CLOSE_WINDOW:
282 case osgGA::GUIEventAdapter::QUIT_APPLICATION:
290 void FGEventHandler::handleKey(const osgGA::GUIEventAdapter& ea, int& key,
293 using namespace osgGA;
295 // XXX Probably other translations are needed too.
297 case GUIEventAdapter::KEY_Escape: key = 0x1b; break;
298 case GUIEventAdapter::KEY_Return: key = '\n'; break;
299 case GUIEventAdapter::KEY_BackSpace: key = '\b'; break;
300 case GUIEventAdapter::KEY_Delete: key = 0x7f; break;
301 case GUIEventAdapter::KEY_Tab: key = '\t'; break;
302 case GUIEventAdapter::KEY_Left: key = PU_KEY_LEFT; break;
303 case GUIEventAdapter::KEY_Up: key = PU_KEY_UP; break;
304 case GUIEventAdapter::KEY_Right: key = PU_KEY_RIGHT; break;
305 case GUIEventAdapter::KEY_Down: key = PU_KEY_DOWN; break;
306 case GUIEventAdapter::KEY_Page_Up: key = PU_KEY_PAGE_UP; break;
307 case GUIEventAdapter::KEY_Page_Down: key = PU_KEY_PAGE_DOWN; break;
308 case GUIEventAdapter::KEY_Home: key = PU_KEY_HOME; break;
309 case GUIEventAdapter::KEY_End: key = PU_KEY_END; break;
310 case GUIEventAdapter::KEY_Insert: key = PU_KEY_INSERT; break;
311 case GUIEventAdapter::KEY_F1: key = PU_KEY_F1; break;
312 case GUIEventAdapter::KEY_F2: key = PU_KEY_F2; break;
313 case GUIEventAdapter::KEY_F3: key = PU_KEY_F3; break;
314 case GUIEventAdapter::KEY_F4: key = PU_KEY_F4; break;
315 case GUIEventAdapter::KEY_F5: key = PU_KEY_F5; break;
316 case GUIEventAdapter::KEY_F6: key = PU_KEY_F6; break;
317 case GUIEventAdapter::KEY_F7: key = PU_KEY_F7; break;
318 case GUIEventAdapter::KEY_F8: key = PU_KEY_F8; break;
319 case GUIEventAdapter::KEY_F9: key = PU_KEY_F9; break;
320 case GUIEventAdapter::KEY_F10: key = PU_KEY_F10; break;
321 case GUIEventAdapter::KEY_F11: key = PU_KEY_F11; break;
322 case GUIEventAdapter::KEY_F12: key = PU_KEY_F12; break;
323 case GUIEventAdapter::KEY_KP_Enter: key = '\r'; break;
324 case GUIEventAdapter::KEY_KP_Add: key = '+'; break;
325 case GUIEventAdapter::KEY_KP_Divide: key = '/'; break;
326 case GUIEventAdapter::KEY_KP_Multiply: key = '*'; break;
327 case GUIEventAdapter::KEY_KP_Subtract: key = '-'; break;
329 osgGA::GUIEventAdapter::EventType eventType = ea.getEventType();
332 // Num Lock is always true on Mac
333 std::map<int, int>::iterator numPadIter = numlockKeyMap.find(key);
334 if (numPadIter != numlockKeyMap.end()) {
335 key = numPadIter->second;
338 if (ea.getModKeyMask() & osgGA::GUIEventAdapter::MODKEY_NUM_LOCK)
340 // NumLock on: map to numeric keys
341 std::map<int, int>::iterator numPadIter = numlockKeyMap.find(key);
342 if (numPadIter != numlockKeyMap.end()) {
343 key = numPadIter->second;
348 // NumLock off: map to PU arrow keys
349 std::map<int, int>::iterator numPadIter = noNumlockKeyMap.find(key);
350 if (numPadIter != noNumlockKeyMap.end()) {
351 key = numPadIter->second;
356 modifiers = osgToFGModifiers(ea.getModKeyMask());
357 currentModifiers = modifiers;
358 if (eventType == osgGA::GUIEventAdapter::KEYUP)
359 modifiers |= KEYMOD_RELEASED;
361 // Release the letter key, for which the key press was reported. This
362 // is to deal with Ctrl-press -> a-press -> Ctrl-release -> a-release
364 if (key >= 0 && key < 128) {
365 if (modifiers & KEYMOD_RELEASED) {
366 key = release_keys[key];
368 release_keys[key] = key;
369 if (key >= 1 && key <= 26) {
370 release_keys[key + '@'] = key;
371 release_keys[key + '`'] = key;
372 } else if (key >= 'A' && key <= 'Z') {
373 release_keys[key - '@'] = key;
374 release_keys[tolower(key)] = key;
375 } else if (key >= 'a' && key <= 'z') {
376 release_keys[key - '`'] = key;
377 release_keys[toupper(key)] = key;
383 void FGEventHandler::handleStats(osgGA::GUIActionAdapter& us)
385 int type = _display->getIntValue() % osgViewer::StatsHandler::LAST;
386 if (type != statsType) {
387 statsEvent->setKey(displayStatsKey);
389 statsType = (statsType + 1) % osgViewer::StatsHandler::LAST;
390 statsHandler->handle(*statsEvent, us);
391 if (changeStatsCameraRenderOrder) {
392 statsHandler->getCamera()->setRenderOrder(osg::Camera::POST_RENDER, 99999);
393 changeStatsCameraRenderOrder = false;
395 } while (statsType != type);
397 _display->setIntValue(statsType);
400 if (_print->getBoolValue()) {
401 statsEvent->setKey(printStatsKey);
402 statsHandler->handle(*statsEvent, us);
403 _print->setBoolValue(false);
407 void eventToWindowCoords(const osgGA::GUIEventAdapter* ea,
408 double& x, double& y)
411 const GraphicsContext* gc = ea->getGraphicsContext();
412 const GraphicsContext::Traits* traits = gc->getTraits() ;
413 // Scale x, y to the dimensions of the window
414 x = (((ea->getX() - ea->getXmin()) / (ea->getXmax() - ea->getXmin()))
415 * (double)traits->width);
416 y = (((ea->getY() - ea->getYmin()) / (ea->getYmax() - ea->getYmin()))
417 * (double)traits->height);
418 if (ea->getMouseYOrientation() == osgGA::GUIEventAdapter::Y_INCREASING_DOWNWARDS)
419 y = (double)traits->height - y;
423 void eventToWindowCoordsYDown(const osgGA::GUIEventAdapter* ea,
424 double& x, double& y)
427 const GraphicsContext* gc = ea->getGraphicsContext();
428 const GraphicsContext::Traits* traits = gc->getTraits() ;
429 // Scale x, y to the dimensions of the window
430 x = (((ea->getX() - ea->getXmin()) / (ea->getXmax() - ea->getXmin()))
431 * (double)traits->width);
432 y = (((ea->getY() - ea->getYmin()) / (ea->getYmax() - ea->getYmin()))
433 * (double)traits->height);
434 if (ea->getMouseYOrientation() == osgGA::GUIEventAdapter::Y_INCREASING_UPWARDS)
435 y = (double)traits->height - y;