AOO410/main/slideshow/source/engine/animationnodes/animationaudionode.hxx

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#ifndef INCLUDED_SLIDESHOW_ANIMATIONAUDIONODE_HXX
#define INCLUDED_SLIDESHOW_ANIMATIONAUDIONODE_HXX

#include "basecontainernode.hxx"
#include "soundplayer.hxx"
#include "com/sun/star/animations/XAnimationNode.hpp"
#include "com/sun/star/animations/XAudio.hpp"

namespace slideshow {
namespace internal {

/** Audio node.
    
    This animation node contains an audio effect. Duration and
    start/stop behaviour is affected by the referenced audio
    file.
*/
class AnimationAudioNode : public BaseNode, public AnimationEventHandler
{
public:
    AnimationAudioNode(
        ::com::sun::star::uno::Reference<
        ::com::sun::star::animations::XAnimationNode> const& xNode, 
        ::boost::shared_ptr<BaseContainerNode> const& pParent,
        NodeContext const& rContext );
    
protected:
    virtual void dispose();
    
private:
    virtual void activate_st();
    virtual void deactivate_st( NodeState eDestState );
    virtual bool hasPendingAnimation() const;
    
    /// overriden, because we need to deal with STOPAUDIO commands
    virtual bool handleAnimationEvent( const AnimationNodeSharedPtr& rNode );
    
private:
    ::com::sun::star::uno::Reference< 
        ::com::sun::star::animations::XAudio >  mxAudioNode;
    ::rtl::OUString                             maSoundURL;
    mutable SoundPlayerSharedPtr                mpPlayer;
    
    void createPlayer() const;
    void resetPlayer() const;
};

} // namespace internal
} // namespace slideshow

#endif /* INCLUDED_SLIDESHOW_ANIMATIONAUDIONODE_HXX */