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Improved the handling of moving the mouse pointer across screens, and add

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grab focus support that honours where the mouse pointer was originally.
This commit is contained in:
Robert Osfield 2006-12-21 11:20:42 +00:00
parent 21de9e4acc
commit 7772da71eb
3 changed files with 101 additions and 12 deletions
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9
include/osgViewer/GraphicsWindow
View File

@ -42,6 +42,15 @@ class OSGVIEWER_EXPORT GraphicsWindow : public osg::GraphicsContext, public osgG
virtual void checkEvents() {}
/** Set Window decoration.*/
virtual void setWindowDecoration(bool /*flag*/) {}
/** Get focus.*/
virtual void grabFocus() {}
/** Get focus on if the pointer is in this window.*/
virtual void grabFocusIfPointerInWindow() {}
public:
/** Realise the GraphicsContext implementation,

81
include/osgViewer/GraphicsWindowX11
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@ -124,10 +124,18 @@ class GraphicsWindowX11 : public osgViewer::GraphicsWindow
/** Check to see if any events have been generated.*/
virtual void checkEvents();
/** Set Window decoration.*/
virtual void setWindowDecoration(bool flag);
/** Get focus.*/
virtual void grabFocus();
/** Get focus on if the pointer is in this window.*/
virtual void grabFocusIfPointerInWindow();
protected:
bool createVisualInfo();
void setBorder(bool flag);
void init();
void transformMouseXY(float& x, float& y);
@ -184,7 +192,7 @@ bool GraphicsWindowX11::createVisualInfo()
return _visualInfo != 0;
}
void GraphicsWindowX11::setBorder(bool flag)
void GraphicsWindowX11::setWindowDecoration(bool flag)
{
Atom atom;
if( (atom = XInternAtom( _display, "_MOTIF_WM_HINTS", 0 )) != None )
@ -239,6 +247,14 @@ void GraphicsWindowX11::setBorder(bool flag)
XFlush(_display);
XSync(_display,0);
#if 0
// now update the window dimensions to account for any size changes made by the window manager,
XGetWindowAttributes( _display, _window, &watt );
_traits->_width = watt.width;
_traits->_height = watt.height;
#endif
}
else
osg::notify(osg::NOTICE)<<"Error: GraphicsWindowX11::setBorder(" << flag << ") - couldn't change decorations." << std::endl;
@ -298,7 +314,7 @@ void GraphicsWindowX11::init()
XSetWindowAttributes swatt;
swatt.colormap = XCreateColormap( _display, _parent, _visualInfo->visual, AllocNone);
//swatt.colormap = DefaultColormap( _dpy, 0 );
//swatt.colormap = DefaultColormap( _dpy, 10 );
swatt.background_pixel = 0;
swatt.border_pixel = 0;
swatt.event_mask = 0;
@ -337,14 +353,15 @@ void GraphicsWindowX11::init()
sh.height = _traits->_height;
XSetStandardProperties( _display, _window, _traits->_windowName.c_str(), _traits->_windowName.c_str(), None, 0, 0, &sh);
#if 1
setBorder(_traits->_windowDecoration);
#if 0
setWindowDecoration(_traits->_windowDecoration);
#else
setBorder(true);
setWindowDecoration(true);
#endif
// Create default Cursor
_defaultCursor = XCreateFontCursor( _display, XC_left_ptr );
// Create Null Cursor
{
Pixmap pixmap;
@ -374,6 +391,14 @@ void GraphicsWindowX11::init()
XFlush( _display );
XSync( _display, 0 );
// now update the window dimensions to account for any size changes made by the window manager,
XGetWindowAttributes( _display, _window, &watt );
_traits->_width = watt.width;
_traits->_height = watt.height;
//osg::notify(osg::NOTICE)<<"After sync apply.x = "<<watt.x<<" watt.y="<<watt.y<<" width="<<watt.width<<" height="<<watt.height<<std::endl;
_initialized = true;
}
@ -439,7 +464,7 @@ void GraphicsWindowX11::checkEvents()
switch( ev.type )
{
case Expose :
osg::notify(osg::NOTICE)<<"Expose"<<std::endl;
osg::notify(osg::NOTICE)<<"Expose x="<<ev.xexpose.x<<" y="<<ev.xexpose.y<<" width="<<ev.xexpose.width<<", height="<<ev.xexpose.height<<std::endl;
break;
case GravityNotify :
@ -462,6 +487,10 @@ void GraphicsWindowX11::checkEvents()
case ConfigureNotify :
{
osg::notify(osg::NOTICE)<<"ConfigureNotify x="<<ev.xconfigure.x<<" y="<<ev.xconfigure.y<<" width="<<ev.xconfigure.width<<", height="<<ev.xconfigure.height<<std::endl;
XWindowAttributes watt;
XGetWindowAttributes( _display, _window, &watt );
osg::notify(osg::NOTICE)<<"After sync apply.x = "<<watt.x<<" watt.y="<<watt.y<<" width="<<watt.width<<" height="<<watt.height<<std::endl;
_traits->_x = ev.xconfigure.x;
_traits->_y = ev.xconfigure.y;
_traits->_width = ev.xconfigure.width;
@ -477,9 +506,10 @@ void GraphicsWindowX11::checkEvents()
do
XGetWindowAttributes(_display, _window, &watt );
while( watt.map_state != IsViewable );
XSetInputFocus( _display, _window, RevertToNone, CurrentTime );
XFlush(_display); XSync(_display,0);
osg::notify(osg::NOTICE)<<"MapNotify x="<<watt.x<<" y="<<watt.y<<" width="<<watt.width<<", height="<<watt.height<<std::endl;
_traits->_width = watt.width;
_traits->_height = watt.height;
break;
}
@ -522,15 +552,22 @@ void GraphicsWindowX11::checkEvents()
screenOrigin_x -= DisplayWidth(_display, i);
}
wx += (screenOrigin_x - _traits->_x);
wy += (screenOrigin_y - _traits->_y);
int dest_x_return, dest_y_return;
Window child_return;
Bool result = XTranslateCoordinates(_display, _window, _parent, 0, 0, &dest_x_return, &dest_y_return, &child_return);
wx += (screenOrigin_x - dest_x_return);
wy += (screenOrigin_y - dest_y_return);
}
float mx = wx;
float my = wy;
transformMouseXY(mx, my);
getEventQueue()->mouseMotion(mx, my);
// osg::notify(osg::NOTICE)<<"MotionNotify wx="<<wx<<" wy="<<wy<<" mx="<<mx<<" my="<<my<<std::endl;
break;
}
@ -604,6 +641,26 @@ void GraphicsWindowX11::checkEvents()
}
}
void GraphicsWindowX11::grabFocus()
{
XSetInputFocus( _display, _window, RevertToNone, CurrentTime );
XFlush(_display); XSync(_display,0);
}
void GraphicsWindowX11::grabFocusIfPointerInWindow()
{
Window win, root;
int wx, wy, rx, ry;
unsigned int buttons;
if( XQueryPointer( _display, _window,
&root, &win, &rx, &ry, &wx, &wy, &buttons))
{
grabFocus();
}
}
void GraphicsWindowX11::transformMouseXY(float& x, float& y)
{
if (getEventQueue()->getUseFixedMouseInputRange())

23
src/osgViewer/Viewer.cpp
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@ -70,6 +70,29 @@ void Viewer::realize()
slave._camera->getGraphicsContext()->realize();
}
}
bool grabFocus = true;
if (grabFocus)
{
if (_camera.valid() && _camera->getGraphicsContext())
{
osgViewer::GraphicsWindow* gw = dynamic_cast<osgViewer::GraphicsWindow*>(_camera->getGraphicsContext());
gw->grabFocusIfPointerInWindow();
}
for(unsigned int i=0; i<getNumSlaves(); ++i)
{
Slave& slave = getSlave(i);
if (slave._camera.valid() && slave._camera->getGraphicsContext())
{
osg::notify(osg::NOTICE)<<" slave realize()"<<std::endl;
slave._camera->getGraphicsContext()->realize();
osgViewer::GraphicsWindow* gw = dynamic_cast<osgViewer::GraphicsWindow*>(slave._camera->getGraphicsContext());
gw->grabFocusIfPointerInWindow();
}
}
}
}