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From Stephan Huber, * GUIEventAdapter: add support for getting normalized touch points

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* MultiTouchTrackball: some code cleanup and support for normalized touch-points
* oscdevice: receiving and sending multi-touch-events via the Cursor2D-profile from TUIO
* added some documentation
This commit is contained in:
Robert Osfield
2013-11-18 13:25:55 +00:00
parent d7442e7456
commit e0d3ab4412
11 changed files with 496 additions and 59 deletions
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57
examples/osgmultitouch/osgmultitouch.cpp
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@@ -98,9 +98,11 @@ osg::Camera* createHUD(unsigned int w, unsigned int h)
class TestMultiTouchEventHandler : public osgGA::GUIEventHandler {
public:
TestMultiTouchEventHandler(osg::Group* parent_group)
TestMultiTouchEventHandler(osg::Group* parent_group, float w, float h)
: osgGA::GUIEventHandler(),
_cleanupOnNextFrame(false)
_cleanupOnNextFrame(false),
_w(w),
_h(h)
{
createTouchRepresentations(parent_group, 10);
}
@@ -149,6 +151,18 @@ private:
virtual bool handle (const osgGA::GUIEventAdapter &ea, osgGA::GUIActionAdapter &aa, osg::Object *, osg::NodeVisitor *)
{
if (ea.getEventType() != osgGA::GUIEventAdapter::FRAME) {
std::cout << ea.getTime() << ": ";
switch(ea.getEventType()) {
case osgGA::GUIEventAdapter::PUSH: std::cout << "PUSH"; break;
case osgGA::GUIEventAdapter::DRAG: std::cout << "DRAG"; break;
case osgGA::GUIEventAdapter::MOVE: std::cout << "MOVE"; break;
case osgGA::GUIEventAdapter::RELEASE: std::cout << "RELEASE"; break;
default: std::cout << ea.getEventType();
}
std::cout << std::endl;
}
switch(ea.getEventType())
{
case osgGA::GUIEventAdapter::FRAME:
@@ -174,7 +188,12 @@ private:
for(osgGA::GUIEventAdapter::TouchData::iterator i = ea.getTouchData()->begin(); i != ea.getTouchData()->end(); ++i, ++j)
{
const osgGA::GUIEventAdapter::TouchData::TouchPoint& tp = (*i);
_mats[j]->setMatrix(osg::Matrix::translate(tp.x, ea.getWindowHeight() - tp.y, 0));
float x = ea.getTouchPointNormalizedX(j);
float y = ea.getTouchPointNormalizedY(j);
// std::cout << j << ": " << tp.x << "/" << tp.y <<" "<< x << " " << y << " " << _w << " " << _h << std::endl;
_mats[j]->setMatrix(osg::Matrix::translate((1+x) * 0.5 * _w, (1+y) * 0.5 * _h, 0));
_mats[j]->setNodeMask(0xffff);
std::ostringstream ss;
@@ -238,6 +257,8 @@ private:
std::vector<osg::MatrixTransform*> _mats;
std::vector<osgText::Text*> _texts;
bool _cleanupOnNextFrame;
float _w, _h;
};
@@ -246,7 +267,21 @@ int main( int argc, char **argv )
{
// use an ArgumentParser object to manage the program arguments.
osg::ArgumentParser arguments(&argc,argv);
unsigned int helpType = 0;
if ((helpType = arguments.readHelpType()))
{
arguments.getApplicationUsage()->write(std::cout, helpType);
return 1;
}
// report any errors if they have occurred when parsing the program arguments.
if (arguments.errors())
{
arguments.writeErrorMessages(std::cout);
return 1;
}
// read the scene from the list of file specified commandline args.
osg::ref_ptr<osg::Node> scene = osgDB::readNodeFiles(arguments);
@@ -265,7 +300,19 @@ int main( int argc, char **argv )
// construct the viewer.
osgViewer::Viewer viewer;
osgViewer::Viewer viewer(arguments);
//opening devices
std::string device;
while(arguments.read("--device", device))
{
osg::ref_ptr<osgGA::Device> dev = osgDB::readFile<osgGA::Device>(device);
if (dev.valid())
{
viewer.addDevice(dev.get());
}
}
osg::ref_ptr<osg::Group> group = new osg::Group;
@@ -288,7 +335,7 @@ int main( int argc, char **argv )
osg::Camera* hud_camera = createHUD(gc->getTraits()->width, gc->getTraits()->height);
viewer.addEventHandler(new TestMultiTouchEventHandler(hud_camera));
viewer.addEventHandler(new TestMultiTouchEventHandler(hud_camera, gc->getTraits()->width, gc->getTraits()->height));
group->addChild(hud_camera);