FGFS-4.1/OpenSceneGraph
4
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Added GraphicsContext::ResizedCallback and GraphicsContext::resizedImplementation.

Browse Source 
Added message on non implementation of GraphicsContext::valid().
Added prelimary GraphicsContext clean up support.
This commit is contained in:
Robert Osfield
2007-01-08 16:20:10 +00:00
parent a3726fba66
commit 4a5eda6522
8 changed files with 143 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
include/osg/GraphicsContext
View File

@@ -170,7 +170,7 @@ class OSG_EXPORT GraphicsContext : public Referenced
inline const Traits* getTraits() const { return _traits.get(); }
/** Return whether a valid and usable GraphicsContext has been created.*/
virtual bool valid() const { return false; }
virtual bool valid() const = 0;
/** Set the State object which tracks the current OpenGL state for this graphics context.*/
@@ -278,10 +278,32 @@ class OSG_EXPORT GraphicsContext : public Referenced
* Pure virtual - must be implemented by Concrate implementations of GraphicsContext. */
virtual void swapBuffersImplementation() = 0;
/** resized method should be called when the underlying window has been resized and the GraphicsWindow and associated Cameras must
be updated to keep in sync with the new size. */
void resized(int x, int y, int width, int height);
void resized(int x, int y, int width, int height)
{
if (_resizedCallback.valid()) _resizedCallback->resizedImplementation(this, x, y, width, height);
else resizedImplementation(x, y, width, height);
}
struct ResizedCallback : public osg::Referenced
{
virtual void resizedImplementation(GraphicsContext* gc, int x, int y, int width, int height) = 0;
};
/** Set the resized callback which overrides the GraphicsConext::realizedImplementation(), allow developers to provide custom behavior
* in response to a window being resized.*/
void setResizedCallback(ResizedCallback* rc) { _resizedCallback = rc; }
/** Get the resized callback which overrides the GraphicsConext::realizedImplementation().*/
ResizedCallback* getResizedCallback() { return _resizedCallback.get(); }
/** Get the const resized callback which overrides the GraphicsConext::realizedImplementation().*/
const ResizedCallback* getResizedCallback() const { return _resizedCallback.get(); }
/** resized implementation, by default resizes the viewports and aspect ratios the cameras associated with the graphics Window. */
virtual void resizedImplementation(int x, int y, int width, int height);
typedef std::list< osg::Camera* > Cameras;
@@ -322,6 +344,8 @@ class OSG_EXPORT GraphicsContext : public Referenced
ref_ptr<GraphicsThread> _graphicsThread;
ref_ptr<ResizedCallback> _resizedCallback;
};