WaveTrackSliderHandles.h

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/**********************************************************************
 
Audacity: A Digital Audio Editor
 
WavelTrackSliderHandles.h
 
Paul Licameli split from TrackPanel.cpp
 
**********************************************************************/
 
#ifndef __AUDACITY_WAVE_TRACK_SLIDER_HANDLES__
#define __AUDACITY_WAVE_TRACK_SLIDER_HANDLES__
 
#include "../../../ui/SliderHandle.h"
 
class wxMouseState;
class WaveTrack;
 
class GainSliderHandle final : public SliderHandle
{
   GainSliderHandle(const GainSliderHandle&) = delete;
 
   std::shared_ptr<WaveTrack> GetWaveTrack() const;
 
public:
   explicit GainSliderHandle
      ( SliderFn sliderFn, const wxRect &rect,
        const std::shared_ptr<Track> &pTrack );
 
   GainSliderHandle &operator=(const GainSliderHandle&) = default;
 
   virtual ~GainSliderHandle();
 
protected:
   float GetValue() override;
   Result SetValue
      (AudacityProject *pProject, float newValue) override;
   Result CommitChanges
      (const wxMouseEvent &event, AudacityProject *pProject) override;
 
   TranslatableString Tip(
      const wxMouseState &state, AudacityProject &) const override;
 
   bool StopsOnKeystroke () override { return true; }
 
public:
   static UIHandlePtr HitTest
      (std::weak_ptr<GainSliderHandle> &holder,
       const wxMouseState &state, const wxRect &rect,
       const std::shared_ptr<Track> &pTrack);
};
 
 
class PanSliderHandle final : public SliderHandle
{
   PanSliderHandle(const PanSliderHandle&) = delete;
 
   std::shared_ptr<WaveTrack> GetWaveTrack() const;
 
public:
   explicit PanSliderHandle
      ( SliderFn sliderFn, const wxRect &rect,
        const std::shared_ptr<Track> &pTrack );
 
   PanSliderHandle &operator=(const PanSliderHandle&) = default;
 
   virtual ~PanSliderHandle();
 
protected:
   float GetValue() override;
   Result SetValue(AudacityProject *pProject, float newValue) override;
   Result CommitChanges
      (const wxMouseEvent &event, AudacityProject *pProject) override;
 
   TranslatableString Tip(
      const wxMouseState &state, AudacityProject &) const override;
 
   bool StopsOnKeystroke () override { return true; }
 
public:
   static UIHandlePtr HitTest
      (std::weak_ptr<PanSliderHandle> &holder,
       const wxMouseState &state, const wxRect &rect,
       const std::shared_ptr<Track> &pTrack);
};
 
#endif