FGFS-4.1/OpenSceneGraph
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Ported across from SimpleViewer to using Viewer

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This commit is contained in:
Robert Osfield
2007-06-02 16:23:07 +00:00
parent ea990dddfa
commit b91bd278cc
1 changed files with 11 additions and 67 deletions
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78
examples/osgkeyboardmouse/osgkeyboardmouse.cpp
View File

@@ -1,6 +1,6 @@
// C++ source file - (C) 2003 Robert Osfield, released under the OSGPL.
//
// Simple example of use of osgViewer::GraphicsWindow + SimpleViewer
// Simple example of use of osgViewer::GraphicsWindow + Viewer
// example that provides the user with control over view position with basic picking.
#include <osg/Timer>
@@ -17,8 +17,7 @@
#include <osgGA/TrackballManipulator>
#include <osgGA/StateSetManipulator>
#include <osgViewer/SimpleViewer>
#include <osgViewer/GraphicsWindow>
#include <osgViewer/Viewer>
#include <osgFX/Scribe>
@@ -100,43 +99,6 @@ public:
};
class ExitHandler : public osgGA::GUIEventHandler
{
public:
ExitHandler():
_done(false) {}
bool done() const { return _done; }
bool handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter&)
{
switch(ea.getEventType())
{
case(osgGA::GUIEventAdapter::KEYUP):
{
if (ea.getKey()==osgGA::GUIEventAdapter::KEY_Escape)
{
_done = true;
}
return false;
}
case(osgGA::GUIEventAdapter::CLOSE_WINDOW):
case(osgGA::GUIEventAdapter::QUIT_APPLICATION):
{
_done = true;
}
default: break;
}
return false;
}
bool _done;
};
// class to handle events with a pick
class PickHandler : public osgGA::GUIEventHandler
{
@@ -151,7 +113,7 @@ public:
bool handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa)
{
osgViewer::SimpleViewer* viewer = dynamic_cast<osgViewer::SimpleViewer*>(&aa);
osgViewer::Viewer* viewer = dynamic_cast<osgViewer::Viewer*>(&aa);
if (!viewer) return false;
switch(ea.getEventType())
@@ -218,7 +180,7 @@ public:
}
}
void pick(const osgGA::GUIEventAdapter& ea, osgViewer::SimpleViewer* viewer)
void pick(const osgGA::GUIEventAdapter& ea, osgViewer::Viewer* viewer)
{
osg::Node* scene = viewer->getSceneData();
if (!scene) return;
@@ -391,45 +353,27 @@ int main( int argc, char **argv )
return 1;
}
gw->realize();
gw->makeCurrent();
// create the view of the scene.
osgViewer::SimpleViewer viewer;
osgViewer::Viewer viewer;
viewer.getCamera()->setGraphicsContext(gc.get());
viewer.getCamera()->setViewport(0,0,800,600);
viewer.setSceneData(loadedModel.get());
viewer.setEventQueue(gw->getEventQueue());
viewer.getEventQueue()->windowResize(traits->x,traits->y,traits->width,traits->height);
// create a tracball manipulator to move the camera around in response to keyboard/mouse events
viewer.setCameraManipulator( new osgGA::TrackballManipulator );
osg::ref_ptr<osgGA::StateSetManipulator> statesetManipulator = new osgGA::StateSetManipulator;
statesetManipulator->setStateSet(viewer.getSceneView()->getGlobalStateSet());
osg::ref_ptr<osgGA::StateSetManipulator> statesetManipulator = new osgGA::StateSetManipulator(viewer.getCamera()->getStateSet());
viewer.addEventHandler(statesetManipulator.get());
// add the pick handler
viewer.addEventHandler(new PickHandler());
// add the exit handler'
ExitHandler* exitHandler = new ExitHandler;
viewer.addEventHandler(exitHandler);
viewer.init();
viewer.realize();
// main loop (note, window toolkits which take control over the main loop will require a window redraw callback containing the code below.)
while( gw->isRealized() && !exitHandler->done())
while(!viewer.done())
{
gw->checkEvents();
if (gw->isRealized() && !exitHandler->done())
{
viewer.frame();
// Swap Buffers
gw->swapBuffers();
}
viewer.frame();
}
return 0;