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 // mapping when NumLock is off
72 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Insert] = PU_KEY_INSERT;
73 noNumlockKeyMap[GUIEventAdapter::KEY_KP_End] = PU_KEY_END;
74 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Down] = PU_KEY_DOWN;
75 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Page_Down] = PU_KEY_PAGE_DOWN;
76 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Left] = PU_KEY_LEFT;
77 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Begin] = '5';
78 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Right] = PU_KEY_RIGHT;
79 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Home] = PU_KEY_HOME;
80 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Up] = PU_KEY_UP;
81 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Page_Up] = PU_KEY_PAGE_UP;
82 noNumlockKeyMap[GUIEventAdapter::KEY_KP_Delete] = 127;
84 for (int i = 0; i < 128; i++)
90 // Translate OSG modifier mask to FG modifier mask.
91 int osgToFGModifiers(int modifiers)
94 if (modifiers & osgGA::GUIEventAdapter::MODKEY_SHIFT)
95 result |= KEYMOD_SHIFT;
97 if (modifiers & osgGA::GUIEventAdapter::MODKEY_CTRL)
98 result |= KEYMOD_CTRL;
100 if (modifiers & osgGA::GUIEventAdapter::MODKEY_ALT)
101 result |= KEYMOD_ALT;
103 if (modifiers & osgGA::GUIEventAdapter::MODKEY_META)
104 result |= KEYMOD_META;
106 if (modifiers & osgGA::GUIEventAdapter::MODKEY_SUPER)
107 result |= KEYMOD_SUPER;
109 if (modifiers & osgGA::GUIEventAdapter::MODKEY_HYPER)
110 result |= KEYMOD_HYPER;
116 void FGEventHandler::init(const osgGA::GUIEventAdapter& ea,
117 osgGA::GUIActionAdapter& us)
119 currentModifiers = osgToFGModifiers(ea.getModKeyMask());
120 (void)handle(ea, us);
124 // Calculate event coordinates in the viewport of the GUI camera, if
125 // possible. Otherwise return false and (-1, -1).
129 eventToViewport(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us,
135 const osg::GraphicsContext* eventGC = ea.getGraphicsContext();
136 const osg::GraphicsContext::Traits* traits = eventGC->getTraits();
137 osg::Camera* guiCamera = getGUICamera(CameraGroup::getDefault());
140 osg::Viewport* vport = guiCamera->getViewport();
144 // Scale x, y to the dimensions of the window
145 double wx = (((ea.getX() - ea.getXmin()) / (ea.getXmax() - ea.getXmin()))
146 * (float)traits->width);
147 double wy = (((ea.getY() - ea.getYmin()) / (ea.getYmax() - ea.getYmin()))
148 * (float)traits->height);
149 if (vport->x() <= wx && wx <= vport->x() + vport->width()
150 && vport->y() <= wy && wy <= vport->y() + vport->height()) {
151 // Finally, into viewport coordinates. Change y to "increasing
154 y = vport->height() - (wy - vport->y());
162 bool FGEventHandler::handle(const osgGA::GUIEventAdapter& ea,
163 osgGA::GUIActionAdapter& us)
168 switch (ea.getEventType()) {
169 case osgGA::GUIEventAdapter::FRAME:
173 case osgGA::GUIEventAdapter::KEYDOWN:
174 case osgGA::GUIEventAdapter::KEYUP:
177 handleKey(ea, key, modmask);
178 eventToViewport(ea, us, x, y);
180 (*keyHandler)(key, modmask, x, y);
183 case osgGA::GUIEventAdapter::PUSH:
184 case osgGA::GUIEventAdapter::RELEASE:
186 bool mainWindow = eventToViewport(ea, us, x, y);
188 switch (ea.getButton()) {
189 case osgGA::GUIEventAdapter::LEFT_MOUSE_BUTTON:
192 case osgGA::GUIEventAdapter::MIDDLE_MOUSE_BUTTON:
195 case osgGA::GUIEventAdapter::RIGHT_MOUSE_BUTTON:
199 if (mouseClickHandler)
200 (*mouseClickHandler)(button,
202 == osgGA::GUIEventAdapter::RELEASE), x, y, mainWindow, &ea);
205 case osgGA::GUIEventAdapter::SCROLL:
207 bool mainWindow = eventToViewport(ea, us, x, y);
208 #ifdef X_DOUBLE_SCROLL_BUG
209 scrollButtonPressed = !scrollButtonPressed;
210 if (!scrollButtonPressed) // Drop the button release event
214 if (ea.getScrollingMotion() == osgGA::GUIEventAdapter::SCROLL_2D) {
215 if (ea.getScrollingDeltaY() > 0)
217 else if (ea.getScrollingDeltaY() < 0)
221 } else if (ea.getScrollingMotion() == osgGA::GUIEventAdapter::SCROLL_UP)
225 if (mouseClickHandler && button != -1) {
226 (*mouseClickHandler)(button, 0, x, y, mainWindow, &ea);
227 (*mouseClickHandler)(button, 1, x, y, mainWindow, &ea);
231 case osgGA::GUIEventAdapter::MOVE:
232 case osgGA::GUIEventAdapter::DRAG:
233 // If we warped the mouse, then disregard all pointer motion
234 // events for this frame. We really want to flush the event
235 // queue of mouse events, but don't have the ability to do
236 // that with osgViewer.
239 if (eventToViewport(ea, us, x, y) && mouseMotionHandler)
240 (*mouseMotionHandler)(x, y);
242 case osgGA::GUIEventAdapter::RESIZE:
243 SG_LOG(SG_VIEW, SG_DEBUG, "FGEventHandler::handle: RESIZE event " << ea.getWindowHeight() << " x " << ea.getWindowWidth() << ", resizable: " << resizable);
244 CameraGroup::getDefault()->resized();
246 globals->get_renderer()->resize(ea.getWindowWidth(), ea.getWindowHeight());
247 statsHandler->handle(ea, us);
249 // work around OSG Cocoa-Viewer issue with resize event handling,
250 // where resize events are queued up, then dispatched in a batch, with
251 // no interveningd drawing calls.
255 case osgGA::GUIEventAdapter::CLOSE_WINDOW:
256 case osgGA::GUIEventAdapter::QUIT_APPLICATION:
264 void FGEventHandler::handleKey(const osgGA::GUIEventAdapter& ea, int& key,
267 using namespace osgGA;
269 // XXX Probably other translations are needed too.
271 case GUIEventAdapter::KEY_Escape: key = 0x1b; break;
272 case GUIEventAdapter::KEY_Return: key = '\n'; break;
273 case GUIEventAdapter::KEY_BackSpace: key = '\b'; break;
274 case GUIEventAdapter::KEY_Delete: key = 0x7f; break;
275 case GUIEventAdapter::KEY_Tab: key = '\t'; break;
276 case GUIEventAdapter::KEY_Left: key = PU_KEY_LEFT; break;
277 case GUIEventAdapter::KEY_Up: key = PU_KEY_UP; break;
278 case GUIEventAdapter::KEY_Right: key = PU_KEY_RIGHT; break;
279 case GUIEventAdapter::KEY_Down: key = PU_KEY_DOWN; break;
280 case GUIEventAdapter::KEY_Page_Up: key = PU_KEY_PAGE_UP; break;
281 case GUIEventAdapter::KEY_Page_Down: key = PU_KEY_PAGE_DOWN; break;
282 case GUIEventAdapter::KEY_Home: key = PU_KEY_HOME; break;
283 case GUIEventAdapter::KEY_End: key = PU_KEY_END; break;
284 case GUIEventAdapter::KEY_Insert: key = PU_KEY_INSERT; break;
285 case GUIEventAdapter::KEY_F1: key = PU_KEY_F1; break;
286 case GUIEventAdapter::KEY_F2: key = PU_KEY_F2; break;
287 case GUIEventAdapter::KEY_F3: key = PU_KEY_F3; break;
288 case GUIEventAdapter::KEY_F4: key = PU_KEY_F4; break;
289 case GUIEventAdapter::KEY_F5: key = PU_KEY_F5; break;
290 case GUIEventAdapter::KEY_F6: key = PU_KEY_F6; break;
291 case GUIEventAdapter::KEY_F7: key = PU_KEY_F7; break;
292 case GUIEventAdapter::KEY_F8: key = PU_KEY_F8; break;
293 case GUIEventAdapter::KEY_F9: key = PU_KEY_F9; break;
294 case GUIEventAdapter::KEY_F10: key = PU_KEY_F10; break;
295 case GUIEventAdapter::KEY_F11: key = PU_KEY_F11; break;
296 case GUIEventAdapter::KEY_F12: key = PU_KEY_F12; break;
297 case GUIEventAdapter::KEY_KP_Enter: key = '\r'; break;
298 case GUIEventAdapter::KEY_KP_Add: key = '+'; break;
299 case GUIEventAdapter::KEY_KP_Divide: key = '/'; break;
300 case GUIEventAdapter::KEY_KP_Multiply: key = '*'; break;
301 case GUIEventAdapter::KEY_KP_Subtract: key = '-'; break;
303 osgGA::GUIEventAdapter::EventType eventType = ea.getEventType();
306 // Num Lock is always true on Mac
307 std::map<int, int>::iterator numPadIter = numlockKeyMap.find(key);
308 if (numPadIter != numlockKeyMap.end()) {
309 key = numPadIter->second;
312 if (ea.getModKeyMask() & osgGA::GUIEventAdapter::MODKEY_NUM_LOCK)
314 // NumLock on: map to numeric keys
315 std::map<int, int>::iterator numPadIter = numlockKeyMap.find(key);
316 if (numPadIter != numlockKeyMap.end()) {
317 key = numPadIter->second;
322 // NumLock off: map to PU arrow keys
323 std::map<int, int>::iterator numPadIter = noNumlockKeyMap.find(key);
324 if (numPadIter != noNumlockKeyMap.end()) {
325 key = numPadIter->second;
330 modifiers = osgToFGModifiers(ea.getModKeyMask());
331 currentModifiers = modifiers;
332 if (eventType == osgGA::GUIEventAdapter::KEYUP)
333 modifiers |= KEYMOD_RELEASED;
335 // Release the letter key, for which the key press was reported. This
336 // is to deal with Ctrl-press -> a-press -> Ctrl-release -> a-release
338 if (key >= 0 && key < 128) {
339 if (modifiers & KEYMOD_RELEASED) {
340 key = release_keys[key];
342 release_keys[key] = key;
343 if (key >= 1 && key <= 26) {
344 release_keys[key + '@'] = key;
345 release_keys[key + '`'] = key;
346 } else if (key >= 'A' && key <= 'Z') {
347 release_keys[key - '@'] = key;
348 release_keys[tolower(key)] = key;
349 } else if (key >= 'a' && key <= 'z') {
350 release_keys[key - '`'] = key;
351 release_keys[toupper(key)] = key;
357 void FGEventHandler::handleStats(osgGA::GUIActionAdapter& us)
359 static SGPropertyNode_ptr display = fgGetNode("/sim/rendering/on-screen-statistics", true);
360 static SGPropertyNode_ptr print = fgGetNode("/sim/rendering/print-statistics", true);
362 int type = display->getIntValue() % osgViewer::StatsHandler::LAST;
363 if (type != statsType) {
364 statsEvent->setKey(displayStatsKey);
366 statsType = (statsType + 1) % osgViewer::StatsHandler::LAST;
367 statsHandler->handle(*statsEvent, us);
368 if (changeStatsCameraRenderOrder) {
369 statsHandler->getCamera()->setRenderOrder(osg::Camera::POST_RENDER, 99999);
370 changeStatsCameraRenderOrder = false;
372 } while (statsType != type);
374 display->setIntValue(statsType);
377 if (print->getBoolValue()) {
378 statsEvent->setKey(printStatsKey);
379 statsHandler->handle(*statsEvent, us);
380 print->setBoolValue(false);
384 void eventToWindowCoords(const osgGA::GUIEventAdapter* ea,
385 double& x, double& y)
388 const GraphicsContext* gc = ea->getGraphicsContext();
389 const GraphicsContext::Traits* traits = gc->getTraits() ;
390 // Scale x, y to the dimensions of the window
391 x = (((ea->getX() - ea->getXmin()) / (ea->getXmax() - ea->getXmin()))
392 * (double)traits->width);
393 y = (((ea->getY() - ea->getYmin()) / (ea->getYmax() - ea->getYmin()))
394 * (double)traits->height);
395 if (ea->getMouseYOrientation() == osgGA::GUIEventAdapter::Y_INCREASING_DOWNWARDS)
396 y = (double)traits->height - y;
399 void eventToWindowCoordsYDown(const osgGA::GUIEventAdapter* ea,
400 double& x, double& y)
403 const GraphicsContext* gc = ea->getGraphicsContext();
404 const GraphicsContext::Traits* traits = gc->getTraits() ;
405 // Scale x, y to the dimensions of the window
406 x = (((ea->getX() - ea->getXmin()) / (ea->getXmax() - ea->getXmin()))
407 * (double)traits->width);
408 y = (((ea->getY() - ea->getYmin()) / (ea->getYmax() - ea->getYmin()))
409 * (double)traits->height);
410 if (ea->getMouseYOrientation() == osgGA::GUIEventAdapter::Y_INCREASING_UPWARDS)
411 y = (double)traits->height - y;