mirror of
https://github.com/cookiengineer/audacity
synced 2025-09-19 17:40:51 +02:00
dc9e436dde
... It is const, renamed CopyTo, and invokes the create-on-demand factory in the destination track; this means Track.cpp doesn't need to do that, and so does not need TrackView.h
84 lines
2.1 KiB
C++
84 lines
2.1 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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CommonTrackPanelCell.h
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Paul Licameli split from TrackPanel.cpp
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**********************************************************************/
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#ifndef __AUDACITY_COMMON_TRACK_PANEL_CELL__
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#define __AUDACITY_COMMON_TRACK_PANEL_CELL__
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#include "../../Audacity.h"
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#include "../../TrackPanelCell.h"
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#include <stdlib.h>
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#include <memory>
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#include <functional>
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class Track;
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class XMLWriter;
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class AUDACITY_DLL_API CommonTrackPanelCell /* not final */
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: public TrackPanelCell
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{
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public:
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// Type of function to dispatch mouse wheel events
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using Hook = std::function<
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unsigned(const TrackPanelMouseEvent &evt, AudacityProject *pProject)
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>;
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// Install a dispatcher function, returning the previous function
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static Hook InstallMouseWheelHook( const Hook &hook );
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CommonTrackPanelCell()
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{}
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virtual ~CommonTrackPanelCell() = 0;
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// Default to the arrow cursor
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HitTestPreview DefaultPreview
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(const TrackPanelMouseState &, const AudacityProject *) override;
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std::shared_ptr<Track> FindTrack() { return DoFindTrack(); }
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std::shared_ptr<const Track> FindTrack() const
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{ return const_cast<CommonTrackPanelCell*>(this)->DoFindTrack(); }
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protected:
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virtual std::shared_ptr<Track> DoFindTrack() = 0;
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unsigned HandleWheelRotation
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(const TrackPanelMouseEvent &event,
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AudacityProject *pProject) override;
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};
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class AUDACITY_DLL_API CommonTrackCell /* not final */
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: public CommonTrackPanelCell
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{
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public:
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explicit CommonTrackCell( const std::shared_ptr<Track> &pTrack );
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~CommonTrackCell();
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// Copy state, for undo/redo purposes
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// The default does nothing
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virtual void CopyTo( Track &track ) const;
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std::shared_ptr<Track> DoFindTrack() override;
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virtual void Reparent( const std::shared_ptr<Track> &parent );
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// default does nothing
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virtual void WriteXMLAttributes( XMLWriter & ) const;
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// default recognizes no attributes, and returns false
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virtual bool HandleXMLAttribute( const wxChar *attr, const wxChar *value );
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private:
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std::weak_ptr< Track > mwTrack;
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};
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#endif
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