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Added Dragger::s/getActivationModKeyMask(..) and Dragger::s/getActivationKeyEvent(...) methods to make it possible to have draggers that only respond when you press a specified modified key or standard key.

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Changed the optional dragger in osgvolume to require the shift key to be pressed for the dragger to become active.
This commit is contained in:
Robert Osfield
2009-07-03 19:16:53 +00:00
parent cb1b874167
commit 6e6a7c960e
8 changed files with 287 additions and 164 deletions
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129
src/osgManipulator/Dragger.cpp
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@@ -125,7 +125,11 @@ bool PointerInfo::projectWindowXYIntoObject(const osg::Vec2d& windowCoord, osg::
//
Dragger::Dragger() :
_handleEvents(false),
_draggerActive(false)
_draggerActive(false),
_activationModKeyMask(0),
_activationKeyEvent(0),
_activationPermittedByModKeyMask(false),
_activationPermittedByKeyEvent(false)
{
_parentDragger = this;
getOrCreateStateSet()->setDataVariance(osg::Object::DYNAMIC);
@@ -135,7 +139,13 @@ Dragger::Dragger() :
}
Dragger::Dragger(const Dragger& rhs, const osg::CopyOp& copyop):
osg::MatrixTransform(rhs, copyop)
osg::MatrixTransform(rhs, copyop),
_handleEvents(rhs._handleEvents),
_draggerActive(false),
_activationModKeyMask(rhs._activationModKeyMask),
_activationKeyEvent(rhs._activationKeyEvent),
_activationPermittedByModKeyMask(false),
_activationPermittedByKeyEvent(false)
{
osg::notify(osg::NOTICE)<<"CompositeDragger::CompositeDragger(const CompositeDragger& rhs, const osg::CopyOp& copyop) not Implemented yet."<<std::endl;
}
@@ -250,65 +260,98 @@ bool Dragger::handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter&
bool handled = false;
switch (ea.getEventType())
bool activationPermitted = true;
if (_activationModKeyMask!=0 || _activationKeyEvent!=0)
{
case osgGA::GUIEventAdapter::PUSH:
_activationPermittedByModKeyMask = (_activationModKeyMask!=0) ?
((ea.getModKeyMask() & _activationModKeyMask)!=0) :
false;
if (_activationKeyEvent!=0)
{
osgUtil::LineSegmentIntersector::Intersections intersections;
_pointer.reset();
if (view->computeIntersections(ea.getX(),ea.getY(),intersections))
switch (ea.getEventType())
{
_pointer.setCamera(view->getCamera());
_pointer.setMousePosition(ea.getX(), ea.getY());
for(osgUtil::LineSegmentIntersector::Intersections::iterator hitr = intersections.begin();
hitr != intersections.end();
++hitr)
case osgGA::GUIEventAdapter::KEYDOWN:
{
_pointer.addIntersection(hitr->nodePath, hitr->getLocalIntersectPoint());
if (ea.getKey()==_activationKeyEvent) _activationPermittedByKeyEvent = true;
break;
}
for (osg::NodePath::iterator itr = _pointer._hitList.front().first.begin();
itr != _pointer._hitList.front().first.end();
++itr)
case osgGA::GUIEventAdapter::KEYUP:
{
osgManipulator::Dragger* dragger = dynamic_cast<osgManipulator::Dragger*>(*itr);
if (dragger)
if (ea.getKey()==_activationKeyEvent) _activationPermittedByKeyEvent = false;
break;
}
default:
break;
}
}
activationPermitted = _activationPermittedByModKeyMask || _activationPermittedByKeyEvent;
}
if (activationPermitted || _draggerActive)
{
switch (ea.getEventType())
{
case osgGA::GUIEventAdapter::PUSH:
{
osgUtil::LineSegmentIntersector::Intersections intersections;
_pointer.reset();
if (view->computeIntersections(ea.getX(),ea.getY(),intersections))
{
_pointer.setCamera(view->getCamera());
_pointer.setMousePosition(ea.getX(), ea.getY());
for(osgUtil::LineSegmentIntersector::Intersections::iterator hitr = intersections.begin();
hitr != intersections.end();
++hitr)
{
if (dragger==this)
_pointer.addIntersection(hitr->nodePath, hitr->getLocalIntersectPoint());
}
for (osg::NodePath::iterator itr = _pointer._hitList.front().first.begin();
itr != _pointer._hitList.front().first.end();
++itr)
{
osgManipulator::Dragger* dragger = dynamic_cast<osgManipulator::Dragger*>(*itr);
if (dragger)
{
dragger->handle(_pointer, ea, aa);
dragger->setDraggerActive(true);
handled = true;
if (dragger==this)
{
dragger->handle(_pointer, ea, aa);
dragger->setDraggerActive(true);
handled = true;
}
}
}
}
}
}
case osgGA::GUIEventAdapter::DRAG:
case osgGA::GUIEventAdapter::RELEASE:
{
if (_draggerActive)
case osgGA::GUIEventAdapter::DRAG:
case osgGA::GUIEventAdapter::RELEASE:
{
_pointer._hitIter = _pointer._hitList.begin();
_pointer.setCamera(view->getCamera());
_pointer.setMousePosition(ea.getX(), ea.getY());
if (_draggerActive)
{
_pointer._hitIter = _pointer._hitList.begin();
_pointer.setCamera(view->getCamera());
_pointer.setMousePosition(ea.getX(), ea.getY());
handle(_pointer, ea, aa);
handle(_pointer, ea, aa);
handled = true;
handled = true;
}
break;
}
break;
default:
break;
}
default:
break;
}
if (_draggerActive && ea.getEventType() == osgGA::GUIEventAdapter::RELEASE)
{
setDraggerActive(false);
_pointer.reset();
if (_draggerActive && ea.getEventType() == osgGA::GUIEventAdapter::RELEASE)
{
setDraggerActive(false);
_pointer.reset();
}
}
return handled;