FGFS-4.1/OpenSceneGraph
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Various work on osgViewer library, including warp point and graphics window resize support

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This commit is contained in:
Robert Osfield
2007-01-01 18:20:10 +00:00
parent 88fc4ee986
commit 7155f7d1b0
36 changed files with 1624 additions and 1030 deletions
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129
src/osgViewer/View.cpp
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@@ -15,20 +15,10 @@
#include <osgViewer/GraphicsWindow>
#include <osgUtil/SceneView>
#include <osg/io_utils>
using namespace osgViewer;
class ActionAdapter : public osgGA::GUIActionAdapter
{
public:
virtual ~ActionAdapter() {}
virtual void requestRedraw() { /*osg::notify(osg::NOTICE)<<"requestRedraw()"<<std::endl;*/ }
virtual void requestContinuousUpdate(bool /*needed*/=true) { /*osg::notify(osg::NOTICE)<<"requestContinuousUpdate("<<needed<<")"<<std::endl;*/ }
virtual void requestWarpPointer(float x,float y) { osg::notify(osg::NOTICE)<<"requestWarpPointer("<<x<<","<<y<<")"<<std::endl; }
};
View::View()
{
// osg::notify(osg::NOTICE)<<"Constructing osgViewer::View"<<std::endl;
@@ -57,8 +47,7 @@ void View::setCameraManipulator(osgGA::MatrixManipulator* manipulator)
osg::ref_ptr<osgGA::GUIEventAdapter> dummyEvent = _eventQueue->createEvent();
ActionAdapter aa;
_cameraManipulator->home(*dummyEvent, aa);
_cameraManipulator->home(*dummyEvent, *this);
}
}
@@ -93,7 +82,11 @@ void View::setUpViewAcrossAllScreens()
traits->y = 0;
traits->width = width;
traits->height = height;
#if 1
traits->windowDecoration = false;
#else
traits->windowDecoration = true;
#endif
traits->doubleBuffer = true;
traits->sharedContext = 0;
@@ -112,18 +105,18 @@ void View::setUpViewAcrossAllScreens()
osg::notify(osg::NOTICE)<<" GraphicsWindow has not been created successfully."<<std::endl;
}
_camera->setViewport(new osg::Viewport(0, 0, width, height));
GLenum buffer = traits->doubleBuffer ? GL_BACK : GL_FRONT;
_camera->setDrawBuffer(buffer);
_camera->setReadBuffer(buffer);
}
else
{
double rotate_x = - double(numScreens-1) * 0.5 * fovx;
float inputRangeMinX = 0.0f;
float inputRangeMinY = 0.0f;
float maxHeight = 0.0f;
for(unsigned int i=0; i<numScreens; ++i, rotate_x += fovx)
{
unsigned int width, height;
@@ -150,11 +143,6 @@ void View::setUpViewAcrossAllScreens()
osg::notify(osg::INFO)<<" GraphicsWindow has been created successfully."<<gw<<std::endl;
gw->getEventQueue()->getCurrentEventState()->setWindowRectangle(0, 0, width, height );
gw->getEventQueue()->setUseFixedMouseInputRange(true);
gw->getEventQueue()->getCurrentEventState()->setInputRange(inputRangeMinX, inputRangeMinY, inputRangeMinX+float(width),inputRangeMinY+float(height) );
inputRangeMinX += float(width);
if (maxHeight < float(height)) maxHeight = float(height);
}
else
{
@@ -163,12 +151,13 @@ void View::setUpViewAcrossAllScreens()
camera->setViewport(new osg::Viewport(0, 0, width, height));
GLenum buffer = traits->doubleBuffer ? GL_BACK : GL_FRONT;
camera->setDrawBuffer(buffer);
camera->setReadBuffer(buffer);
addSlave(camera.get(), osg::Matrixd(), osg::Matrixd::rotate( rotate_x, 0.0, 1.0, 0.0));
}
getEventQueue()->setUseFixedMouseInputRange(true);
getEventQueue()->getCurrentEventState()->setInputRange(0.0f, 0.0, inputRangeMinX, maxHeight);
}
setUpRenderingSupport();
@@ -190,6 +179,9 @@ struct RenderingOperation : public osg::GraphicsOperation
{
if (!_sceneView) return;
// osg::notify(osg::NOTICE)<<"RenderingOperation"<<std::endl;
_sceneView->cull();
_sceneView->draw();
@@ -255,8 +247,7 @@ void View::assignSceneDataToCameras()
osg::ref_ptr<osgGA::GUIEventAdapter> dummyEvent = _eventQueue->createEvent();
ActionAdapter aa;
_cameraManipulator->home(*dummyEvent, aa);
_cameraManipulator->home(*dummyEvent, *this);
}
if (_camera.valid())
@@ -275,3 +266,81 @@ void View::assignSceneDataToCameras()
}
}
}
void View::requestRedraw()
{
}
void View::requestContinuousUpdate(bool)
{
}
void View::requestWarpPointer(float x,float y)
{
osgGA::GUIEventAdapter* eventState = getEventQueue()->getCurrentEventState();
bool view_invert_y = eventState->getMouseYOrientation()==osgGA::GUIEventAdapter::Y_INCREASING_DOWNWARDS;
osgViewer::GraphicsWindow* gw = dynamic_cast<osgViewer::GraphicsWindow*>(_camera->getGraphicsContext());
if (gw)
{
bool gw_invert_y = gw->getEventQueue()->getCurrentEventState()->getMouseYOrientation()==osgGA::GUIEventAdapter::Y_INCREASING_DOWNWARDS;
x = x * float(gw->getTraits()->width) / (eventState->getXmax()-eventState->getXmin());
y = y * float(gw->getTraits()->height) / (eventState->getYmax()-eventState->getYmin());
if (view_invert_y != gw_invert_y) y = gw->getTraits()->height - y;
gw->requestWarpPointer(x, y);
return;
}
osg::Matrix masterCameraVPW = getCamera()->getViewMatrix() * getCamera()->getProjectionMatrix();
x = (x - eventState->getXmin()) * 2.0 / (eventState->getXmax()-eventState->getXmin()) - 1.0;
y = (y - eventState->getYmin())* 2.0 / (eventState->getYmax()-eventState->getYmin()) - 1.0;
if (view_invert_y) y = - y;
for(unsigned i=0; i<getNumSlaves(); ++i)
{
Slave& slave = getSlave(i);
if (slave._camera.valid())
{
osg::Camera* camera = slave._camera.get();
osg::Viewport* viewport = camera ? camera->getViewport() : 0;
osg::Matrix localCameraVPW = camera->getViewMatrix() * camera->getProjectionMatrix();
if (viewport) localCameraVPW *= viewport->computeWindowMatrix();
osg::Matrix matrix( osg::Matrix::inverse(masterCameraVPW) * localCameraVPW );
osg::Vec3d new_coord = osg::Vec3d(x,y,0.0) * matrix;
if (viewport &&
new_coord.x() >= viewport->x() && new_coord.y() >= viewport->y() &&
new_coord.x() <= (viewport->x()+viewport->width()) && new_coord.y() <= (viewport->y()+viewport->height()) )
{
gw = dynamic_cast<osgViewer::GraphicsWindow*>(camera->getGraphicsContext());
if (gw)
{
x = new_coord.x();
y = new_coord.y();
bool gw_invert_y = gw->getEventQueue()->getCurrentEventState()->getMouseYOrientation()==osgGA::GUIEventAdapter::Y_INCREASING_DOWNWARDS;
if (gw_invert_y) y = gw->getTraits()->height - y;
gw->requestWarpPointer(x, y);
return;
}
}
}
}
}