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Fixed panning bug, when using RUN_ON_DEMAND, that resulted in the camera being thrown off towards infinity.

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The solution for to refactor the way that events are checked so I add a bool return type to checkEvents() method across osgViewer::GraphcisWindow, osgGA::Devive and osgViewer::Viewer/CompositeViewer classes
This commit is contained in:
Robert Osfield 2013-05-24 09:35:58 +00:00
parent 1cd73f0238
commit fb3178106a
24 changed files with 132 additions and 33 deletions
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2
include/osgGA/Device
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@ -37,7 +37,7 @@ class OSGGA_EXPORT Device : public osg::Object
int getCapabilities() const { return _capabilities; }
virtual void checkEvents() {};
virtual bool checkEvents() { return _eventQueue.valid() ? !(getEventQueue()->empty()) : false; }
virtual void sendEvent(const GUIEventAdapter& ea);
virtual void sendEvents(const EventQueue::Events& events);

6
include/osgGA/EventQueue
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@ -35,6 +35,12 @@ class OSGGA_EXPORT EventQueue : public osg::Referenced
typedef std::list< osg::ref_ptr<GUIEventAdapter> > Events;
bool empty() const
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_eventQueueMutex);
return _eventQueue.empty();
}
/** Set events.*/
void setEvents(Events& events);

3
include/osgViewer/CompositeViewer
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@ -87,6 +87,9 @@ class OSGVIEWER_EXPORT CompositeViewer : public ViewerBase
/** Check to see if the new frame is required, called by run() when FrameScheme is set to ON_DEMAND.*/
virtual bool checkNeedToDoFrame();
/** check to see if events have been received, return true if events are now available.*/
virtual bool checkEvents();
virtual void advance(double simulationTime=USE_REFERENCE_TIME);
virtual void eventTraversal();

3
include/osgViewer/GraphicsWindow
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@ -53,7 +53,8 @@ class OSGVIEWER_EXPORT GraphicsWindow : public osg::GraphicsContext, public osgG
osgGA::EventQueue* getEventQueue() { return _eventQueue.get(); }
const osgGA::EventQueue* getEventQueue() const { return _eventQueue.get(); }
virtual void checkEvents() {}
/** Check events, return true if events have been received.*/
virtual bool checkEvents() { return false; }
/** Set the window's position and size.*/
void setWindowRectangle(int x, int y, int width, int height)

2
include/osgViewer/View
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@ -320,7 +320,7 @@ class OSGVIEWER_EXPORT View : public osg::View, public osgGA::GUIActionAdapter
osg::Timer_t _startTick;
Devices _eventSources;
Devices _eventSources;
osg::ref_ptr<osgViewer::Scene> _scene;
osg::ref_ptr<osgGA::EventQueue> _eventQueue;

3
include/osgViewer/Viewer
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@ -87,6 +87,9 @@ class OSGVIEWER_EXPORT Viewer : public ViewerBase, public osgViewer::View
/** check to see if the new frame is required, called by run(..) when FrameScheme is set to ON_DEMAND.*/
virtual bool checkNeedToDoFrame();
/** check to see if events have been received, return true if events are now available.*/
virtual bool checkEvents();
virtual void advance(double simulationTime=USE_REFERENCE_TIME);
virtual void eventTraversal();

3
include/osgViewer/ViewerBase
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@ -225,6 +225,9 @@ class OSGVIEWER_EXPORT ViewerBase : public virtual osg::Object
/** check to see if the new frame is required, called by run(..) when FrameScheme is set to ON_DEMAND.*/
virtual bool checkNeedToDoFrame() = 0;
/** check to see if events have been received, return true if events are now available.*/
virtual bool checkEvents() = 0;
/** Render a complete new frame.
* Calls advance(), eventTraversal(), updateTraversal(), renderingTraversals(). */
virtual void frame(double simulationTime=USE_REFERENCE_TIME);

2
include/osgViewer/api/Carbon/GraphicsWindowCarbon
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@ -85,7 +85,7 @@ class GraphicsWindowCarbon : public osgViewer::GraphicsWindow, public osgViewer:
virtual void swapBuffersImplementation();
/** Check to see if any events have been generated.*/
virtual void checkEvents();
virtual bool checkEvents();
/** Set the window's position and size.*/
virtual bool setWindowRectangleImplementation(int x, int y, int width, int height);

2
include/osgViewer/api/Cocoa/GraphicsWindowCocoa
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@ -113,7 +113,7 @@ class GraphicsWindowCocoa : public osgViewer::GraphicsWindow, public osgViewer::
virtual void swapBuffersImplementation();
/** Check to see if any events have been generated.*/
virtual void checkEvents();
virtual bool checkEvents();
/** Set Window decoration.*/
virtual bool setWindowDecorationImplementation(bool flag);

2
include/osgViewer/api/IOS/GraphicsWindowIOS
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@ -109,7 +109,7 @@ class GraphicsWindowIOS : public osgViewer::GraphicsWindow
virtual void swapBuffersImplementation();
/** Check to see if any events have been generated.*/
virtual void checkEvents();
virtual bool checkEvents();
/** Set Window decoration.*/
virtual bool setWindowDecorationImplementation(bool flag);

2
include/osgViewer/api/Win32/GraphicsWindowWin32
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@ -58,7 +58,7 @@ class OSGVIEWER_EXPORT GraphicsWindowWin32 : public osgViewer::GraphicsWindow, p
virtual void swapBuffersImplementation();
/** Check to see if any events have been generated.*/
virtual void checkEvents();
virtual bool checkEvents();
/** Set the window's position and size.*/
virtual bool setWindowRectangleImplementation(int x, int y, int width, int height);

2
include/osgViewer/api/X11/GraphicsWindowX11
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@ -97,7 +97,7 @@ class OSGVIEWER_EXPORT GraphicsWindowX11 : public osgViewer::GraphicsWindow, pub
virtual void swapBuffersImplementation();
/** Check to see if any events have been generated.*/
virtual void checkEvents();
virtual bool checkEvents();
/** Set Window decoration.*/
virtual bool setWindowDecorationImplementation(bool flag);

3
src/osgPlugins/RestHttpDevice/RestHttpDevice.hpp
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@ -169,7 +169,7 @@ public:
virtual void checkEvents()
virtual bool checkEvents()
{
if ((fabs(_currentMouseX - _targetMouseY) > 0.1f) || (fabs(_currentMouseY - _targetMouseY) > 0.1))
{
@ -178,6 +178,7 @@ public:
_currentMouseY = (1.0f - scalar) * _currentMouseY + scalar * _targetMouseY;
getEventQueue()->mouseMotion(_currentMouseX, _currentMouseY, getEventQueue()->getTime());
}
return !(getEventQueue()->empty());
}
void setTargetMousePosition(float x, float y, bool force = false)

6
src/osgPlugins/ZeroConfDevice/ReaderWriterZeroConfDevice.cpp
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@ -37,9 +37,10 @@ public:
_autoDiscovery->registerService(type, port);
}
virtual void checkEvents()
virtual bool checkEvents()
{
_autoDiscovery->update();
return !(getEventQueue()->empty());
}
virtual void sendEvent(const osgGA::GUIEventAdapter& event)
@ -72,9 +73,10 @@ class ZeroConfDiscoverDevice : public osgGA::Device {
public:
ZeroConfDiscoverDevice(const std::string& type);
virtual void checkEvents()
virtual bool checkEvents()
{
_autoDiscovery->update();
return !(getEventQueue()->empty());
}
private:

1
src/osgPlugins/osc/OscReceivingDevice.hpp
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@ -71,7 +71,6 @@ public:
~OscReceivingDevice();
virtual void checkEvents() {}
virtual void run();

4
src/osgPlugins/sdl/JoystickDevice.cpp
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@ -103,7 +103,7 @@ void JoystickDevice::capture(ValueList& axisValues, ValueList& buttonValues) con
}
}
void JoystickDevice::checkEvents()
bool JoystickDevice::checkEvents()
{
if (_joystick)
{
@ -180,6 +180,6 @@ void JoystickDevice::checkEvents()
_buttonValues.swap(newButtonValues);
}
return !(getEventQueue()->empty());
}

2
src/osgPlugins/sdl/JoystickDevice.h
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@ -31,7 +31,7 @@ class JoystickDevice : public osgGA::Device
typedef std::vector<int> ValueList;
typedef std::map<int, int> ButtonMap;
virtual void checkEvents();
virtual bool checkEvents();
void addMouseButtonMapping(int joystickButton, int mouseButton)
{

46
src/osgViewer/CompositeViewer.cpp
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@ -266,8 +266,8 @@ bool CompositeViewer::checkNeedToDoFrame()
}
}
// now do a eventTraversal to see if any events might require a new frame.
eventTraversal();
// check if events are available and need processing
if (checkEvents()) return true;
if (_requestRedraw) return true;
if (_requestContinousUpdate) return true;
@ -275,6 +275,44 @@ bool CompositeViewer::checkNeedToDoFrame()
return false;
}
bool CompositeViewer::checkEvents()
{
for(RefViews::iterator itr = _views.begin();
itr != _views.end();
++itr)
{
osgViewer::View* view = itr->get();
if (view)
{
// check events from any attached sources
for(View::Devices::iterator eitr = view->getDevices().begin();
eitr != view->getDevices().end();
++eitr)
{
osgGA::Device* es = eitr->get();
if (es->getCapabilities() & osgGA::Device::RECEIVE_EVENTS)
{
if (es->checkEvents()) return true;
}
}
}
}
// get events from all windows attached to Viewer.
Windows windows;
getWindows(windows);
for(Windows::iterator witr = windows.begin();
witr != windows.end();
++witr)
{
if ((*witr)->checkEvents()) return true;
}
return false;
}
int CompositeViewer::run()
{
for(RefViews::iterator itr = _views.begin();
@ -874,7 +912,11 @@ void CompositeViewer::eventTraversal()
if (_views.empty()) return;
#if 1
double cutOffTime = _frameStamp->getReferenceTime();
#else
double cutOffTime = (_runFrameScheme==ON_DEMAND) ? DBL_MAX : _frameStamp->getReferenceTime();
#endif
double beginEventTraversal = osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick());

7
src/osgViewer/GraphicsWindowCarbon.cpp
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@ -844,9 +844,9 @@ bool GraphicsWindowCarbon::handleModifierKeys(EventRef theEvent)
void GraphicsWindowCarbon::checkEvents()
bool GraphicsWindowCarbon::checkEvents()
{
if (!_realized) return;
if (!_realized) return false;
EventRef theEvent;
EventTargetRef theTarget = GetEventDispatcherTarget();
@ -869,7 +869,7 @@ void GraphicsWindowCarbon::checkEvents()
if ((fwres == inMenuBar) && (mouseButton >= 1)) {
MenuSelect(wheresMyMouse);
HiliteMenu(0);
return;
return !(getEventQueue()->empty());
}
break;
}
@ -903,6 +903,7 @@ void GraphicsWindowCarbon::checkEvents()
s_quit_requested = false;
}
return !(getEventQueue()->empty());
}

6
src/osgViewer/GraphicsWindowCocoa.mm
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@ -1327,10 +1327,10 @@ void GraphicsWindowCocoa::swapBuffersImplementation()
// checkEvents
// process all pending events
// ----------------------------------------------------------------------------------------------------------
void GraphicsWindowCocoa::checkEvents()
bool GraphicsWindowCocoa::checkEvents()
{
if (!_checkForEvents)
return;
return false;
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
@ -1362,6 +1362,8 @@ void GraphicsWindowCocoa::checkEvents()
}
[pool release];
return !(getEventQueue()->empty());
}

4
src/osgViewer/GraphicsWindowIOS.mm
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@ -1069,10 +1069,10 @@ bool GraphicsWindowIOS::setWindowRectangleImplementation(int x, int y, int width
}
void GraphicsWindowIOS::checkEvents()
bool GraphicsWindowIOS::checkEvents()
{
return !(getEventQueue()->empty());
}

6
src/osgViewer/GraphicsWindowWin32.cpp
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@ -2054,9 +2054,9 @@ void GraphicsWindowWin32::swapBuffersImplementation()
}
}
void GraphicsWindowWin32::checkEvents()
bool GraphicsWindowWin32::checkEvents()
{
if (!_realized) return;
if (!_realized) return false;
MSG msg;
while (::PeekMessage(&msg, _hwnd, 0, 0, PM_REMOVE))
@ -2076,6 +2076,8 @@ void GraphicsWindowWin32::checkEvents()
_destroyWindow = false;
destroyWindow(false);
}
return !(getEventQueue()->empty());
}
void GraphicsWindowWin32::grabFocus()

6
src/osgViewer/GraphicsWindowX11.cpp
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@ -1197,9 +1197,9 @@ void GraphicsWindowX11::swapBuffersImplementation()
}
}
void GraphicsWindowX11::checkEvents()
bool GraphicsWindowX11::checkEvents()
{
if (!_realized) return;
if (!_realized) return false;
Display* display = _eventDisplay;
@ -1564,6 +1564,8 @@ void GraphicsWindowX11::checkEvents()
requestRedraw();
}
}
return !(getEventQueue()->empty());
}
void GraphicsWindowX11::grabFocus()

36
src/osgViewer/Viewer.cpp
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@ -361,8 +361,8 @@ bool Viewer::checkNeedToDoFrame()
if (_camera->getUpdateCallback()) return true;
if (getSceneData()!=0 && getSceneData()->getNumChildrenRequiringUpdateTraversal()>0) return true;
// now do a eventTraversal to see if any events might require a new frame.
eventTraversal();
// check if events are available and need processing
if (checkEvents()) return true;
// now check if any of the event handles have prompted a redraw.
if (_requestRedraw) return true;
@ -371,6 +371,34 @@ bool Viewer::checkNeedToDoFrame()
return false;
}
bool Viewer::checkEvents()
{
// check events from any attached sources
for(Devices::iterator eitr = _eventSources.begin();
eitr != _eventSources.end();
++eitr)
{
osgGA::Device* es = eitr->get();
if (es->getCapabilities() & osgGA::Device::RECEIVE_EVENTS)
{
if (es->checkEvents()) return true;
}
}
// get events from all windows attached to Viewer.
Windows windows;
getWindows(windows);
for(Windows::iterator witr = windows.begin();
witr != windows.end();
++witr)
{
if ((*witr)->checkEvents()) return true;
}
return false;
}
int Viewer::run()
{
if (!getCameraManipulator() && getCamera()->getAllowEventFocus())
@ -798,7 +826,11 @@ void Viewer::eventTraversal()
{
if (_done) return;
#if 1
double cutOffTime = _frameStamp->getReferenceTime();
#else
double cutOffTime = (_runFrameScheme==ON_DEMAND) ? DBL_MAX : _frameStamp->getReferenceTime();
#endif
double beginEventTraversal = osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick());