87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 Robert Osfield
|
|
*
|
|
* This library is open source and may be redistributed and/or modified under
|
|
* the terms of the GNU Public License (GPL) version 1.0 or
|
|
* (at your option) any later version.
|
|
*
|
|
* 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 SLIDEEVENTHANDLER
|
|
#define SLIDEEVENTHANDLER 1
|
|
|
|
#include <osg/Switch>
|
|
|
|
#include <osgGA/GUIEventHandler>
|
|
|
|
class SlideEventHandler : public osgGA::GUIEventHandler
|
|
{
|
|
public:
|
|
|
|
SlideEventHandler();
|
|
|
|
META_Object(osgslideshowApp,SlideEventHandler);
|
|
|
|
void set(osg::Node* model);
|
|
|
|
virtual void accept(osgGA::GUIEventHandlerVisitor& v) { v.visit(*this); }
|
|
|
|
virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&);
|
|
|
|
virtual void getUsage(osg::ApplicationUsage& usage) const;
|
|
|
|
enum WhichPosition
|
|
{
|
|
FIRST_POSITION = 0,
|
|
LAST_POSITION = 0xffffffff,
|
|
};
|
|
|
|
bool selectSlide(unsigned int slideNum,unsigned int layerNum=FIRST_POSITION);
|
|
bool selectLayer(unsigned int layerNum);
|
|
|
|
bool nextLayerOrSlide();
|
|
bool previousLayerOrSlide();
|
|
|
|
bool nextSlide();
|
|
bool previousSlide();
|
|
|
|
bool nextLayer();
|
|
bool previousLayer();
|
|
|
|
void setAutoSteppingActive(bool flag = true) { _autoSteppingActive = flag; }
|
|
bool getAutoSteppingActive() const { return _autoSteppingActive; }
|
|
|
|
void setTimeDelayBetweenSlides(double dt) { _timePerSlide = dt; }
|
|
double getTimeDelayBetweenSlides() const { return _timePerSlide; }
|
|
|
|
double getCurrentTimeDelayBetweenSlides() const;
|
|
|
|
protected:
|
|
|
|
~SlideEventHandler() {}
|
|
SlideEventHandler(const SlideEventHandler&,const osg::CopyOp&) {}
|
|
|
|
osg::ref_ptr<osg::Switch> _presentationSwitch;
|
|
unsigned int _activeSlide;
|
|
|
|
osg::ref_ptr<osg::Switch> _slideSwitch;
|
|
unsigned int _activeLayer;
|
|
|
|
bool _firstTraversal;
|
|
double _previousTime;
|
|
double _timePerSlide;
|
|
bool _autoSteppingActive;
|
|
bool _loopPresentation;
|
|
bool _pause;
|
|
|
|
void resetUpdateCallbacks();
|
|
void resetUpdateCallbackActivity();
|
|
|
|
};
|
|
|
|
#endif
|