AffordanceHandle.h

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/*!********************************************************************
*
 Audacity: A Digital Audio Editor
 
 AffordanceHandle.h
 
 Vitaly Sverchinsky
 
 **********************************************************************/
 
#pragma once
 
#include "TimeShiftHandle.h"
 
class AUDACITY_DLL_API AffordanceHandle : public TimeShiftHandle
{
    constexpr static double MoveThreshold { 5.0 };
 
    static HitTestPreview HitPreview(const AudacityProject*, bool unsafe, bool moving);
 
    bool mMoving { false };
    wxPoint mClickPosition { };
public:
 
    void Enter(bool forward, AudacityProject* pProject) override;
    HitTestPreview Preview(const TrackPanelMouseState& mouseState, AudacityProject* pProject) override;
 
    AffordanceHandle(const std::shared_ptr<Track>& track);
 
    Result Click(const TrackPanelMouseEvent& evt, AudacityProject* pProject) override;
    Result Drag(const TrackPanelMouseEvent& event, AudacityProject* pProject) override;
    Result Release(const TrackPanelMouseEvent& event, AudacityProject* pProject, wxWindow* pParent) override;
 
protected:
    virtual Result SelectAt(const TrackPanelMouseEvent& event, AudacityProject* pProject) = 0;
 
private:
    Result UpdateTrackSelection(
       const TrackPanelMouseEvent& event, AudacityProject* pProject);
};