activitybase.hxx

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#ifndef INCLUDED_SLIDESHOW_SOURCE_ENGINE_ACTIVITIES_ACTIVITYBASE_HXX
#define INCLUDED_SLIDESHOW_SOURCE_ENGINE_ACTIVITIES_ACTIVITYBASE_HXX
 
#include <animationactivity.hxx>
#include "activityparameters.hxx"
#include <animatableshape.hxx>
#include <shapeattributelayer.hxx>
 
namespace slideshow::internal {
 
class ActivityBase : public AnimationActivity
{
public:
    explicit ActivityBase( const ActivityParameters& rParms );
 
    virtual void dispose() override;
 
protected:
    virtual bool perform() override;
    virtual double calcTimeLag() const override;
    virtual bool isActive() const override;
 
private:
    virtual void dequeued() override;
 
    // From AnimationActivity interface
    virtual void setTargets(
        const AnimatableShapeSharedPtr&        rShape,
        const ShapeAttributeLayerSharedPtr&    rAttrLayer ) override;
 
private:
    virtual void startAnimation() = 0;
 
    virtual void endAnimation() = 0;
 
protected:
 
    void endActivity();
 
    double calcAcceleratedTime( double nT ) const;
 
    bool isDisposed() const {
        return (!mbIsActive && !mpEndEvent && !mpShape &&
                !mpAttributeLayer);
    }
 
    EventQueue& getEventQueue() const { return mrEventQueue; }
 
    const AnimatableShapeSharedPtr& getShape() const { return mpShape; }
 
    const ShapeAttributeLayerSharedPtr& getShapeAttributeLayer() const
        { return mpAttributeLayer; }
 
    bool isRepeatCountValid() const { return bool(maRepeats); }
    double getRepeatCount() const { return *maRepeats; }
    bool isAutoReverse() const { return mbAutoReverse; }
 
private:
    virtual void end() override;
    virtual void performEnd() = 0;
 
private:
    EventSharedPtr                  mpEndEvent;
    EventQueue&                     mrEventQueue;
    AnimatableShapeSharedPtr        mpShape; // only to pass on to animation
    ShapeAttributeLayerSharedPtr    mpAttributeLayer; // only to pass on to anim
 
    ::std::optional<double> const maRepeats;
    const double                    mnAccelerationFraction;
    const double                    mnDecelerationFraction;
 
    const bool                      mbAutoReverse;
 
    // true, if perform() has not yet been called:
    mutable bool                    mbFirstPerformCall;
    bool                            mbIsActive;
};
 
} // namespace presentation::internal
 
#endif // INCLUDED_SLIDESHOW_SOURCE_ENGINE_ACTIVITIES_ACTIVITYBASE_HXX
 
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