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);
106 void FGEventHandler::reset()
108 _display = fgGetNode("/sim/rendering/on-screen-statistics", true);
109 _print = fgGetNode("/sim/rendering/print-statistics", true);
110 statsHandler->reset();
115 // Translate OSG modifier mask to FG modifier mask.
116 int osgToFGModifiers(int modifiers)
119 if (modifiers & osgGA::GUIEventAdapter::MODKEY_SHIFT)
120 result |= KEYMOD_SHIFT;
122 if (modifiers & osgGA::GUIEventAdapter::MODKEY_CTRL)
123 result |= KEYMOD_CTRL;
125 if (modifiers & osgGA::GUIEventAdapter::MODKEY_ALT)
126 result |= KEYMOD_ALT;
128 if (modifiers & osgGA::GUIEventAdapter::MODKEY_META)
129 result |= KEYMOD_META;
131 if (modifiers & osgGA::GUIEventAdapter::MODKEY_SUPER)
132 result |= KEYMOD_SUPER;
134 if (modifiers & osgGA::GUIEventAdapter::MODKEY_HYPER)
135 result |= KEYMOD_HYPER;
141 void FGEventHandler::init(const osgGA::GUIEventAdapter& ea,
142 osgGA::GUIActionAdapter& us)
144 currentModifiers = osgToFGModifiers(ea.getModKeyMask());
145 (void)handle(ea, us);
149 // Calculate event coordinates in the viewport of the GUI camera, if
150 // possible. Otherwise return false and (-1, -1).
154 eventToViewport(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us,
160 const osg::GraphicsContext* eventGC = ea.getGraphicsContext();
162 return false; // TODO how can this happen?
163 const osg::GraphicsContext::Traits* traits = eventGC->getTraits();
164 osg::Camera* guiCamera = getGUICamera(CameraGroup::getDefault());
167 osg::Viewport* vport = guiCamera->getViewport();
171 // Scale x, y to the dimensions of the window
172 double wx = (((ea.getX() - ea.getXmin()) / (ea.getXmax() - ea.getXmin()))
173 * (float)traits->width);
174 double wy = (((ea.getY() - ea.getYmin()) / (ea.getYmax() - ea.getYmin()))
175 * (float)traits->height);
176 if (vport->x() <= wx && wx <= vport->x() + vport->width()
177 && vport->y() <= wy && wy <= vport->y() + vport->height()) {
178 // Finally, into viewport coordinates. Change y to "increasing
181 y = vport->height() - (wy - vport->y());
189 bool FGEventHandler::handle(const osgGA::GUIEventAdapter& ea,
190 osgGA::GUIActionAdapter& us)
192 // Event handlers seem to be called even if the according event has already
193 // been handled. Already handled events shouldn't be handled multiple times
194 // so we need to exit here manually.
196 // Let mouse move events pass to correctly handle mouse cursor hide
197 // timeout while moving just on the canvas gui.
198 // TODO We should clean up the whole mouse input and make hide
199 // timeout independent of the event handler which consumed the
201 && ea.getEventType() != osgGA::GUIEventAdapter::MOVE
202 && ea.getEventType() != osgGA::GUIEventAdapter::DRAG )
208 switch (ea.getEventType()) {
209 case osgGA::GUIEventAdapter::FRAME:
213 case osgGA::GUIEventAdapter::KEYDOWN:
214 case osgGA::GUIEventAdapter::KEYUP:
217 handleKey(ea, key, modmask);
218 eventToViewport(ea, us, x, y);
220 (*keyHandler)(key, modmask, x, y);
223 case osgGA::GUIEventAdapter::PUSH:
224 case osgGA::GUIEventAdapter::RELEASE:
226 bool mainWindow = eventToViewport(ea, us, x, y);
228 switch (ea.getButton()) {
229 case osgGA::GUIEventAdapter::LEFT_MOUSE_BUTTON:
232 case osgGA::GUIEventAdapter::MIDDLE_MOUSE_BUTTON:
235 case osgGA::GUIEventAdapter::RIGHT_MOUSE_BUTTON:
239 if (mouseClickHandler)
240 (*mouseClickHandler)(button,
242 == osgGA::GUIEventAdapter::RELEASE), x, y, mainWindow, &ea);
245 case osgGA::GUIEventAdapter::SCROLL:
247 bool mainWindow = eventToViewport(ea, us, x, y);
248 #ifdef X_DOUBLE_SCROLL_BUG
249 scrollButtonPressed = !scrollButtonPressed;
250 if (!scrollButtonPressed) // Drop the button release event
254 if (ea.getScrollingMotion() == osgGA::GUIEventAdapter::SCROLL_2D) {
255 if (ea.getScrollingDeltaY() > 0)
257 else if (ea.getScrollingDeltaY() < 0)
263 // bug https://code.google.com/p/flightgear-bugs/issues/detail?id=1286
264 // Mac (Cocoa) interprets shuft+wheel as horizontal scroll
265 if (ea.getModKeyMask() & osgGA::GUIEventAdapter::MODKEY_SHIFT) {
266 if (ea.getScrollingDeltaX() > 0)
268 else if (ea.getScrollingDeltaX() < 0)
273 } else if (ea.getScrollingMotion() == osgGA::GUIEventAdapter::SCROLL_UP)
277 if (mouseClickHandler && button != -1) {
278 (*mouseClickHandler)(button, 0, x, y, mainWindow, &ea);
279 (*mouseClickHandler)(button, 1, x, y, mainWindow, &ea);
283 case osgGA::GUIEventAdapter::MOVE:
284 case osgGA::GUIEventAdapter::DRAG:
285 // If we warped the mouse, then disregard all pointer motion
286 // events for this frame. We really want to flush the event
287 // queue of mouse events, but don't have the ability to do
288 // that with osgViewer.
291 if (eventToViewport(ea, us, x, y) && mouseMotionHandler)
292 (*mouseMotionHandler)(x, y, &ea);
294 case osgGA::GUIEventAdapter::RESIZE:
295 SG_LOG(SG_VIEW, SG_DEBUG, "FGEventHandler::handle: RESIZE event " << ea.getWindowHeight() << " x " << ea.getWindowWidth() << ", resizable: " << resizable);
296 CameraGroup::getDefault()->resized();
298 globals->get_renderer()->resize(ea.getWindowWidth(), ea.getWindowHeight());
299 statsHandler->handle(ea, us);
301 // work around OSG Cocoa-Viewer issue with resize event handling,
302 // where resize events are queued up, then dispatched in a batch, with
303 // no interveningd drawing calls.
307 case osgGA::GUIEventAdapter::CLOSE_WINDOW:
308 case osgGA::GUIEventAdapter::QUIT_APPLICATION:
316 void FGEventHandler::handleKey(const osgGA::GUIEventAdapter& ea, int& key,
319 using namespace osgGA;
321 // XXX Probably other translations are needed too.
323 case GUIEventAdapter::KEY_Escape: key = 0x1b; break;
324 case GUIEventAdapter::KEY_Return: key = '\n'; break;
325 case GUIEventAdapter::KEY_BackSpace: key = '\b'; break;
326 case GUIEventAdapter::KEY_Delete: key = 0x7f; break;
327 case GUIEventAdapter::KEY_Tab: key = '\t'; break;
328 case GUIEventAdapter::KEY_Left: key = PU_KEY_LEFT; break;
329 case GUIEventAdapter::KEY_Up: key = PU_KEY_UP; break;
330 case GUIEventAdapter::KEY_Right: key = PU_KEY_RIGHT; break;
331 case GUIEventAdapter::KEY_Down: key = PU_KEY_DOWN; break;
332 case GUIEventAdapter::KEY_Page_Up: key = PU_KEY_PAGE_UP; break;
333 case GUIEventAdapter::KEY_Page_Down: key = PU_KEY_PAGE_DOWN; break;
334 case GUIEventAdapter::KEY_Home: key = PU_KEY_HOME; break;
335 case GUIEventAdapter::KEY_End: key = PU_KEY_END; break;
336 case GUIEventAdapter::KEY_Insert: key = PU_KEY_INSERT; break;
337 case GUIEventAdapter::KEY_F1: key = PU_KEY_F1; break;
338 case GUIEventAdapter::KEY_F2: key = PU_KEY_F2; break;
339 case GUIEventAdapter::KEY_F3: key = PU_KEY_F3; break;
340 case GUIEventAdapter::KEY_F4: key = PU_KEY_F4; break;
341 case GUIEventAdapter::KEY_F5: key = PU_KEY_F5; break;
342 case GUIEventAdapter::KEY_F6: key = PU_KEY_F6; break;
343 case GUIEventAdapter::KEY_F7: key = PU_KEY_F7; break;
344 case GUIEventAdapter::KEY_F8: key = PU_KEY_F8; break;
345 case GUIEventAdapter::KEY_F9: key = PU_KEY_F9; break;
346 case GUIEventAdapter::KEY_F10: key = PU_KEY_F10; break;
347 case GUIEventAdapter::KEY_F11: key = PU_KEY_F11; break;
348 case GUIEventAdapter::KEY_F12: key = PU_KEY_F12; break;
349 case GUIEventAdapter::KEY_KP_Enter: key = '\r'; break;
350 case GUIEventAdapter::KEY_KP_Add: key = '+'; break;
351 case GUIEventAdapter::KEY_KP_Divide: key = '/'; break;
352 case GUIEventAdapter::KEY_KP_Multiply: key = '*'; break;
353 case GUIEventAdapter::KEY_KP_Subtract: key = '-'; break;
355 osgGA::GUIEventAdapter::EventType eventType = ea.getEventType();
358 // Num Lock is always true on Mac
359 std::map<int, int>::iterator numPadIter = numlockKeyMap.find(key);
360 if (numPadIter != numlockKeyMap.end()) {
361 key = numPadIter->second;
364 if (ea.getModKeyMask() & osgGA::GUIEventAdapter::MODKEY_NUM_LOCK)
366 // NumLock on: map to numeric keys
367 std::map<int, int>::iterator numPadIter = numlockKeyMap.find(key);
368 if (numPadIter != numlockKeyMap.end()) {
369 key = numPadIter->second;
374 // NumLock off: map to PU arrow keys
375 std::map<int, int>::iterator numPadIter = noNumlockKeyMap.find(key);
376 if (numPadIter != noNumlockKeyMap.end()) {
377 key = numPadIter->second;
382 modifiers = osgToFGModifiers(ea.getModKeyMask());
383 currentModifiers = modifiers;
384 if (eventType == osgGA::GUIEventAdapter::KEYUP)
385 modifiers |= KEYMOD_RELEASED;
387 // Release the letter key, for which the key press was reported. This
388 // is to deal with Ctrl-press -> a-press -> Ctrl-release -> a-release
390 if (key >= 0 && key < 128) {
391 if (modifiers & KEYMOD_RELEASED) {
392 key = release_keys[key];
394 release_keys[key] = key;
395 if (key >= 1 && key <= 26) {
396 release_keys[key + '@'] = key;
397 release_keys[key + '`'] = key;
398 } else if (key >= 'A' && key <= 'Z') {
399 release_keys[key - '@'] = key;
400 release_keys[tolower(key)] = key;
401 } else if (key >= 'a' && key <= 'z') {
402 release_keys[key - '`'] = key;
403 release_keys[toupper(key)] = key;
409 void FGEventHandler::handleStats(osgGA::GUIActionAdapter& us)
411 int type = _display->getIntValue() % osgViewer::StatsHandler::LAST;
412 if (type != statsType) {
413 statsEvent->setKey(displayStatsKey);
415 statsType = (statsType + 1) % osgViewer::StatsHandler::LAST;
416 statsHandler->handle(*statsEvent, us);
417 if (changeStatsCameraRenderOrder) {
418 statsHandler->getCamera()->setRenderOrder(osg::Camera::POST_RENDER, 99999);
419 changeStatsCameraRenderOrder = false;
421 } while (statsType != type);
423 _display->setIntValue(statsType);
426 if (_print->getBoolValue()) {
427 statsEvent->setKey(printStatsKey);
428 statsHandler->handle(*statsEvent, us);
429 _print->setBoolValue(false);
433 void eventToWindowCoords(const osgGA::GUIEventAdapter* ea,
434 double& x, double& y)
437 const GraphicsContext* gc = ea->getGraphicsContext();
438 const GraphicsContext::Traits* traits = gc->getTraits() ;
439 // Scale x, y to the dimensions of the window
440 x = (((ea->getX() - ea->getXmin()) / (ea->getXmax() - ea->getXmin()))
441 * (double)traits->width);
442 y = (((ea->getY() - ea->getYmin()) / (ea->getYmax() - ea->getYmin()))
443 * (double)traits->height);
444 if (ea->getMouseYOrientation() == osgGA::GUIEventAdapter::Y_INCREASING_DOWNWARDS)
445 y = (double)traits->height - y;
449 void eventToWindowCoordsYDown(const osgGA::GUIEventAdapter* ea,
450 double& x, double& y)
453 const GraphicsContext* gc = ea->getGraphicsContext();
454 const GraphicsContext::Traits* traits = gc->getTraits() ;
455 // Scale x, y to the dimensions of the window
456 x = (((ea->getX() - ea->getXmin()) / (ea->getXmax() - ea->getXmin()))
457 * (double)traits->width);
458 y = (((ea->getY() - ea->getYmin()) / (ea->getYmax() - ea->getYmin()))
459 * (double)traits->height);
460 if (ea->getMouseYOrientation() == osgGA::GUIEventAdapter::Y_INCREASING_UPWARDS)
461 y = (double)traits->height - y;