bool CScreenCapture::handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa)
{
osgViewer::ViewerBase* viewer = dynamic_cast<osgViewer::View*>(&aa)->getViewerBase();
if (!viewer) return false;
switch (ea.getEventType())
{
case (osgGA::GUIEventAdapter::FRAME) :
{
// Booleans aren't the best way of doing this, but I want to do
// the actual adding here because I don't want to require
// startCapture() take a viewer as argument, which could not be
// the right one.
if (_startCapture)
{
// Start capturing with the currently set number of frames.
// If set to -1 it will capture continuously, if set to >0
// it will capture that number of frames.
_startCapture = false;
addCallbackToViewer(*viewer);
}
else if (_stopCapture)
{
_stopCapture = false;
removeCallbackFromViewer(*viewer);
}
break;
}
default:
break;
}
return false;
}
// aa will point to an osgViewer::View, so we will take a screenshot
// of that view's graphics contexts.
bool ScreenCaptureHandler::handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa)
{
osgViewer::ViewerBase* viewer = dynamic_cast<osgViewer::View*>(&aa)->getViewerBase();
if (!viewer) return false;
switch(ea.getEventType())
{
case (osgGA::GUIEventAdapter::FRAME):
{
// Booleans aren't the best way of doing this, but I want to do
// the actual adding here because I don't want to require
// startCapture() take a viewer as argument, which could not be
// the right one.
if (_startCapture)
{
// Start capturing with the currently set number of frames.
// If set to -1 it will capture continuously, if set to >0
// it will capture that number of frames.
_startCapture = false;
addCallbackToViewer(*viewer);
}
else if (_stopCapture)
{
_stopCapture = false;
removeCallbackFromViewer(*viewer);
}
break;
}
case(osgGA::GUIEventAdapter::KEYUP):
{
if (ea.getKey() == _keyEventTakeScreenShot)
{
// Check that we will capture at least one frame.
// Just check for ==0, because >0 is means we're already
// capturing and <0 means it will capture all frames.
WindowCaptureCallback* callback = static_cast<WindowCaptureCallback*>(_callback.get());
if (callback->getFramesToCapture() == 0)
{
setFramesToCapture(1);
}
addCallbackToViewer(*viewer);
return true;
}
if (ea.getKey() == _keyEventToggleContinuousCapture)
{
if (getFramesToCapture() < 0)
{
setFramesToCapture(0);
removeCallbackFromViewer(*viewer);
}
else
{
setFramesToCapture(-1);
addCallbackToViewer(*viewer);
}
return true;
}
break;
}
default:
break;
}
return false;
}
