85 lines
2.4 KiB
C++
85 lines
2.4 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#ifndef SLIDEEVENTHANDLER
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#define SLIDEEVENTHANDLER 1
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#include <osg/Switch>
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#include <osgGA/GUIEventHandler>
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class SlideEventHandler : public osgGA::GUIEventHandler
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{
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public:
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SlideEventHandler();
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META_Object(osgslideshowApp,SlideEventHandler);
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void set(osg::Node* model);
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virtual void accept(osgGA::GUIEventHandlerVisitor& v) { v.visit(*this); }
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virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&);
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virtual void getUsage(osg::ApplicationUsage& usage) const;
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enum WhichPosition
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{
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FIRST_POSITION = 0,
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LAST_POSITION = 0xffffffff,
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};
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bool selectSlide(unsigned int slideNum,unsigned int layerNum=FIRST_POSITION);
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bool selectLayer(unsigned int layerNum);
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bool nextLayerOrSlide();
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bool previousLayerOrSlide();
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bool nextSlide();
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bool previousSlide();
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bool nextLayer();
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bool previousLayer();
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void setAutoSteppingActive(bool flag) { _autoSteppingActive = true; }
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bool getAutoSteppingActive() const { return _autoSteppingActive; }
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void setTimeDelayBetweenSlides(double dt) { _timePerSlide = dt; }
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double getTimeDelayBetweenSlides() const { return _timePerSlide; }
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protected:
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~SlideEventHandler() {}
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SlideEventHandler(const SlideEventHandler&,const osg::CopyOp&) {}
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osg::ref_ptr<osg::Switch> _presentationSwitch;
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unsigned int _activeSlide;
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osg::ref_ptr<osg::Switch> _slideSwitch;
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unsigned int _activeLayer;
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bool _firstTraversal;
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double _previousTime;
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double _timePerSlide;
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bool _autoSteppingActive;
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bool _loopPresentation;
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bool _pause;
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};
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#endif
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