FGFS-4.1/OpenSceneGraph
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Added mechanism for tracking when interactive images are being rendered to

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enable their backends to only rendered them when they are actively being rendered
in the OpenGL window.
This commit is contained in:
Robert Osfield
2008-11-23 15:51:43 +00:00
parent 8264b31fa1
commit 5b15436935
7 changed files with 95 additions and 11 deletions
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6
include/osg/Image
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@@ -311,11 +311,13 @@ class OSG_EXPORT Image : public Object
/** method for sending pointer events to images that are acting as front ends to interactive surfaces such as a vnc or browser window.*/
virtual void sendPointerEvent(int x, int y, int buttonMask) {};
virtual void sendPointerEvent(int x, int y, int buttonMask) {}
/** method for sending key events to images that are acting as front ends to interactive surfaces such as a vnc or browser window.*/
virtual void sendKeyEvent(int key, bool keyDown) {};
virtual void sendKeyEvent(int key, bool keyDown) {}
/** method for passing frame information to the custom Image classes, to be called only when objects associated with imagery are not culled.*/
virtual void setFrameLastRendered(const osg::FrameStamp* frameStamp) {}
protected :

12
include/osgViewer/ViewerEventHandlers
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@@ -365,19 +365,27 @@ class OSGVIEWER_EXPORT ScreenCaptureHandler : public osgGA::GUIEventHandler
/** InteractiveImage is an event handler that computes the mouse coordinates in an images coordinate frame
* and then passes keyboard and mouse events to it. This event handler is useful for vnc or browser
* surfaces in the 3D scene.*/
class OSGVIEWER_EXPORT InteractiveImageHandler : public osgGA::GUIEventHandler
class OSGVIEWER_EXPORT InteractiveImageHandler : public osgGA::GUIEventHandler, public osg::Drawable::CullCallback
{
public:
InteractiveImageHandler(osg::Image* image):
_image(image) {}
META_Object(osgViewer, InteractiveImageHandler);
virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& aa, osg::Object*, osg::NodeVisitor* nv);
virtual bool cull(osg::NodeVisitor* nv, osg::Drawable* drawable, osg::RenderInfo* renderInfo) const;
protected:
virtual ~InteractiveImageHandler() {}
InteractiveImageHandler() {}
InteractiveImageHandler(const InteractiveImageHandler& rhs,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY) {}
bool mousePosition(osgViewer::View* view, osg::NodeVisitor* nv, const osgGA::GUIEventAdapter& ea, int& x, int &y) const;
osg::observer_ptr<osg::Image> _image;