89 lines
2.7 KiB
C++
89 lines
2.7 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2013 Robert Osfield
|
|
*
|
|
* This library is open source and may be redistributed and/or modified under
|
|
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
|
|
* (at your option) any later version. The full license is in LICENSE file
|
|
* included with this distribution, and on the openscenegraph.org website.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* OpenSceneGraph Public License for more details.
|
|
*/
|
|
|
|
#ifndef OSGGA_WIDGET
|
|
#define OSGGA_WIDGET
|
|
|
|
#include <osg/Group>
|
|
#include <osg/BoundingBox>
|
|
#include <osgGA/Event>
|
|
#include <osgGA/EventVisitor>
|
|
|
|
namespace osgGA
|
|
{
|
|
|
|
class OSGGA_EXPORT Widget : public osg::Group
|
|
{
|
|
public:
|
|
Widget();
|
|
Widget(const Widget& tfw, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
|
|
META_Node(osgGA, Widget);
|
|
|
|
virtual void traverse(osg::NodeVisitor& nv);
|
|
virtual void traverseImplementation(osg::NodeVisitor& nv);
|
|
|
|
virtual bool handle(osgGA::EventVisitor* ev, osgGA::Event* event);
|
|
virtual bool handleImplementation(osgGA::EventVisitor* ev, osgGA::Event* event);
|
|
|
|
virtual bool computePositionInLocalCoordinates(osgGA::EventVisitor* ev, osgGA::GUIEventAdapter* event, osg::Vec3& localPosition) const;
|
|
|
|
virtual void createGraphics();
|
|
virtual void createGraphicsImplementation();
|
|
|
|
virtual void setExtents(const osg::BoundingBoxf& bb);
|
|
const osg::BoundingBoxf& getExtents() const { return _extents; }
|
|
|
|
enum FocusBehaviour
|
|
{
|
|
CLICK_TO_FOCUS,
|
|
FOCUS_FOLLOWS_POINTER,
|
|
EVENT_DRIVEN_FOCUS_DISABLED
|
|
};
|
|
|
|
void setFocusBehaviour(FocusBehaviour behaviour) { _focusBehaviour = behaviour; }
|
|
FocusBehaviour getFocusBehaviour() const { return _focusBehaviour; }
|
|
|
|
/** update the focus according to events.*/
|
|
virtual void updateFocus(osg::NodeVisitor& nv);
|
|
|
|
/** set whether the widget has focus or not.*/
|
|
virtual void setHasEventFocus(bool focus);
|
|
|
|
/** get whether the widget has focus or not.*/
|
|
virtual bool getHasEventFocus() const;
|
|
|
|
virtual osg::BoundingSphere computeBound() const;
|
|
|
|
/** update any focus related graphics+state to the focused state.*/
|
|
virtual void enter();
|
|
virtual void enterImplementation();
|
|
|
|
/** update any focus related graphics+state to the unfocused state.*/
|
|
virtual void leave();
|
|
virtual void leaveImplementation();
|
|
|
|
|
|
protected:
|
|
virtual ~Widget() {}
|
|
|
|
FocusBehaviour _focusBehaviour;
|
|
bool _hasEventFocus;
|
|
bool _graphicsInitialized;
|
|
|
|
osg::BoundingBoxf _extents;
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|