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Added event and update callbacks to pass up changes to the mouse position to the ImageSequence::seek() to control which images is selected based on mouse x position

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This commit is contained in:
Robert Osfield
2012-10-31 16:07:23 +00:00
parent fa2fb07609
commit a6f3e0af78
5 changed files with 124 additions and 16 deletions
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70
include/osgPresentation/SlideEventHandler
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@@ -15,6 +15,8 @@
#include <osg/Switch>
#include <osg/Timer>
#include <osg/ValueObject>
#include <osg/ImageSequence>
#include <osgGA/GUIEventHandler>
#include <osgViewer/Viewer>
@@ -194,6 +196,69 @@ protected:
};
class PropertyManager : protected osg::Object
{
public:
PropertyManager() {}
PropertyManager(const PropertyManager& pm, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY):
osg::Object(pm,copyop) {}
META_Object(osgPresentation, PropertyManager)
/** Convinience method that casts the named UserObject to osg::TemplateValueObject<T> and gets the value.
* To use this template method you need to include the osg/ValueObject header.*/
template<typename T>
bool getProperty(const std::string& name, T& value) const
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
return getUserValue(name, value);
}
/** Convinience method that creates the osg::TemplateValueObject<T> to store the
* specified value and adds it as a named UserObject.
* To use this template method you need to include the osg/ValueObject header. */
template<typename T>
void setProperty(const std::string& name, const T& value)
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
return setUserValue(name, value);
}
int ref() const { return osg::Referenced::ref(); }
int unref() const { return osg::Referenced::unref(); }
protected:
mutable OpenThreads::Mutex _mutex;
};
struct OSGPRESENTATION_EXPORT ImageSequenceUpdateCallback : public osg::NodeCallback
{
ImageSequenceUpdateCallback(osg::ImageSequence* is, PropertyManager* pm, const std::string& propertyName):
_imageSequence(is),
_propertyManager(pm),
_propertyName(propertyName) {}
virtual void operator()(osg::Node* node, osg::NodeVisitor* nv);
osg::ref_ptr<osg::ImageSequence> _imageSequence;
osg::ref_ptr<PropertyManager> _propertyManager;
std::string _propertyName;
};
struct OSGPRESENTATION_EXPORT PropertyEventCallback : public osgGA::GUIEventHandler
{
PropertyEventCallback(PropertyManager* pm):
_propertyManager(pm) {}
virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&);
osg::ref_ptr<PropertyManager> _propertyManager;
};
class OSGPRESENTATION_EXPORT SlideEventHandler : public osgGA::GUIEventHandler
{
public:
@@ -269,9 +334,6 @@ public:
void setRequestReload(bool flag);
bool getRequestReload() const { return _requestReload; }
void setNormalizedMousePosition(const osg::Vec2& pos) { _normalizedMousePosition = pos; }
const osg::Vec2& getNormalizedMousePosition() const { return _normalizedMousePosition; }
protected:
~SlideEventHandler() {}
@@ -326,8 +388,6 @@ protected:
osg::ref_ptr<CompileSlideCallback> _compileSlideCallback;
bool _requestReload;
osg::Vec2 _normalizedMousePosition;
};
}