FGFS-4.1/OpenSceneGraph
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Introduced new scheme for handling mouse events with osgViewer. The new scheme enables robust event handling even when using distortion correction render to texture Cameras.

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This commit is contained in:
Robert Osfield
2013-05-03 19:26:27 +00:00
parent 63088ab63e
commit 668d351765
36 changed files with 1116 additions and 698 deletions
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6
include/osgViewer/CompositeViewer
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@@ -123,6 +123,10 @@ class OSGVIEWER_EXPORT CompositeViewer : public ViewerBase
virtual void viewerInit();
void generateSlavePointerData(osg::Camera* camera, osgGA::GUIEventAdapter& event);
void generatePointerData(osgGA::GUIEventAdapter& event);
void reprojectPointerData(osgGA::GUIEventAdapter& source_event, osgGA::GUIEventAdapter& dest_event);
typedef std::vector< osg::ref_ptr<osgViewer::View> > RefViews;
RefViews _views;
@@ -135,6 +139,8 @@ class OSGVIEWER_EXPORT CompositeViewer : public ViewerBase
osg::observer_ptr<osg::Camera> _cameraWithFocus;
osg::observer_ptr<osgViewer::View> _viewWithFocus;
osg::ref_ptr<osgGA::GUIEventAdapter> _previousEvent;
};

25
include/osgViewer/View
View File

@@ -227,20 +227,29 @@ class OSGVIEWER_EXPORT View : public osg::View, public osgGA::GUIActionAdapter
/** Return true if this view contains a specified camera.*/
bool containsCamera(const osg::Camera* camera) const;
/** Get the camera which contains the pointer position x,y specified in the master camera's window/eye coordinates.
* Also passes back the local window coordinatess for the graphics context associated with the camera. */
/** deprecated. */
const osg::Camera* getCameraContainingPosition(float x, float y, float& local_x, float& local_y) const;
/** Compute intersections between a ray through the specified master camera's window/eye coordinates and a specified node.
* Note, when a master camera has slaves and no viewport itself, its coordinate frame will be in clip space i.e. -1,-1 to 1,1,
* while if it has a viewport the coordintates will be relative to its viewport dimensions.
* Mouse events handled by the view will automatically be attached to the master camera window/clip coordinates so that they can be passed
* directly to the computeIntersections method. */
/** deprecated. */
bool computeIntersections(float x,float y, osgUtil::LineSegmentIntersector::Intersections& intersections,osg::Node::NodeMask traversalMask = 0xffffffff);
/** Compute intersections between a ray through the specified master camera's window/eye coordinates and a specified nodePath's subgraph. */
/** deprecated. */
bool computeIntersections(float x,float y, const osg::NodePath& nodePath, osgUtil::LineSegmentIntersector::Intersections& intersections,osg::Node::NodeMask traversalMask = 0xffffffff);
/** Compute intersections of a ray, starting the current mouse position, through the specified camera. */
bool computeIntersections(const osgGA::GUIEventAdapter& ea, osgUtil::LineSegmentIntersector::Intersections& intersections,osg::Node::NodeMask traversalMask = 0xffffffff);
/** Compute intersections of a ray, starting the current mouse position, through the specified master camera's window/eye coordinates and a specified nodePath's subgraph. */
bool computeIntersections(const osgGA::GUIEventAdapter& ea, const osg::NodePath& nodePath, osgUtil::LineSegmentIntersector::Intersections& intersections,osg::Node::NodeMask traversalMask = 0xffffffff);
/** Compute intersections of a ray through the specified camera. */
bool computeIntersections(const osg::Camera* camera, osgUtil::Intersector::CoordinateFrame cf, float x,float y, osgUtil::LineSegmentIntersector::Intersections& intersections,osg::Node::NodeMask traversalMask = 0xffffffff);
/** Compute intersections of a ray through the specified camera and a specified nodePath's subgraph. */
bool computeIntersections(const osg::Camera* camera, osgUtil::Intersector::CoordinateFrame cf, float x,float y, const osg::NodePath& nodePath, osgUtil::LineSegmentIntersector::Intersections& intersections,osg::Node::NodeMask traversalMask = 0xffffffff);
virtual void requestRedraw();
virtual void requestContinuousUpdate(bool needed=true);

9
include/osgViewer/Viewer
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@@ -93,10 +93,6 @@ class OSGVIEWER_EXPORT Viewer : public ViewerBase, public osgViewer::View
virtual void updateTraversal();
void setCameraWithFocus(osg::Camera* camera) { _cameraWithFocus = camera; }
osg::Camera* getCameraWithFocus() { return _cameraWithFocus.get(); }
const osg::Camera* getCameraWithFocus() const { return _cameraWithFocus.get(); }
virtual void getCameras(Cameras& cameras, bool onlyActive=true);
virtual void getContexts(Contexts& contexts, bool onlyValid=true);
@@ -119,8 +115,9 @@ class OSGVIEWER_EXPORT Viewer : public ViewerBase, public osgViewer::View
virtual void viewerInit() { init(); }
osg::observer_ptr<osg::Camera> _cameraWithFocus;
void generateSlavePointerData(osg::Camera* camera, osgGA::GUIEventAdapter& event);
void generatePointerData(osgGA::GUIEventAdapter& event);
void reprojectPointerData(osgGA::GUIEventAdapter& source_event, osgGA::GUIEventAdapter& dest_event);
};

1
include/osgViewer/ViewerEventHandlers
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@@ -528,7 +528,6 @@ protected:
osg::Object(), osgGA::GUIEventHandler(), osg::Drawable::CullCallback(), _fullscreen(false) {}
bool mousePosition(osgViewer::View* view, osg::NodeVisitor* nv, const osgGA::GUIEventAdapter& ea, int& x, int &y) const;
bool computeIntersections(osgViewer::View* view, float x,float y, const osg::NodePath& nodePath, osgUtil::LineSegmentIntersector::Intersections& intersections,osg::Node::NodeMask traversalMask = 0xffffffff) const;
void resize(int width, int height);