mirror of
https://github.com/cookiengineer/audacity
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d7738c403f
... So this can be called more than once in its lifetime, in response to TAB key rotation.
124 lines
3.4 KiB
C++
124 lines
3.4 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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TimeShiftHandle.h
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Paul Licameli
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**********************************************************************/
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#ifndef __AUDACITY_TIMESHIFT_HANDLE__
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#define __AUDACITY_TIMESHIFT_HANDLE__
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#include "../../UIHandle.h"
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#include "../../MemoryX.h"
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#include "../../Snap.h"
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#include "../../Track.h"
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class WaveClip;
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struct ClipMoveState {
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// non-NULL only if click was in a WaveTrack and without Shift key:
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WaveClip *capturedClip {};
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bool capturedClipIsSelection {};
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TrackArray trackExclusions {};
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double hSlideAmount {};
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TrackClipArray capturedClipArray {};
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wxInt64 snapLeft { -1 }, snapRight { -1 };
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void clear()
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{
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capturedClip = nullptr;
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capturedClipIsSelection = false;
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trackExclusions.clear();
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hSlideAmount = 0;
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capturedClipArray.clear();
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snapLeft = snapRight = -1;
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}
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};
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class TimeShiftHandle final : public UIHandle
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{
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TimeShiftHandle(const TimeShiftHandle&) = delete;
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static HitTestPreview HitPreview
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(const AudacityProject *pProject, bool unsafe);
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public:
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explicit TimeShiftHandle
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( const std::shared_ptr<Track> &pTrack, bool gripHit );
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TimeShiftHandle &operator=(const TimeShiftHandle&) = default;
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bool IsGripHit() const { return mGripHit; }
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std::shared_ptr<Track> GetTrack() const { return mCapturedTrack; }
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// A utility function also used by menu commands
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static void CreateListOfCapturedClips
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( ClipMoveState &state, const ViewInfo &viewInfo, Track &capturedTrack,
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TrackList &trackList, bool syncLocked, double clickTime );
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// A utility function also used by menu commands
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static void DoSlideHorizontal
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( ClipMoveState &state, TrackList &trackList, Track &capturedTrack );
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static UIHandlePtr HitAnywhere
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(std::weak_ptr<TimeShiftHandle> &holder,
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const std::shared_ptr<Track> &pTrack, bool gripHit);
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static UIHandlePtr HitTest
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(std::weak_ptr<TimeShiftHandle> &holder,
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const wxMouseState &state, const wxRect &rect,
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const std::shared_ptr<Track> &pTrack);
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virtual ~TimeShiftHandle();
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void Enter() override;
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Result Click
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(const TrackPanelMouseEvent &event, AudacityProject *pProject) override;
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Result Drag
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(const TrackPanelMouseEvent &event, AudacityProject *pProject) override;
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HitTestPreview Preview
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(const TrackPanelMouseState &state, const AudacityProject *pProject)
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override;
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Result Release
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(const TrackPanelMouseEvent &event, AudacityProject *pProject,
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wxWindow *pParent) override;
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Result Cancel(AudacityProject *pProject) override;
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void DrawExtras
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(DrawingPass pass,
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wxDC * dc, const wxRegion &, const wxRect &panelRect) override;
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bool StopsOnKeystroke() override { return true; }
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private:
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std::shared_ptr<Track> mCapturedTrack;
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wxRect mRect{};
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bool mDidSlideVertically{};
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bool mSlideUpDownOnly{};
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bool mSnapPreferRightEdge{};
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int mMouseClickX{};
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// Handles snapping the selection boundaries or track boundaries to
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// line up with existing tracks or labels. mSnapLeft and mSnapRight
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// are the horizontal index of pixels to display user feedback
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// guidelines so the user knows when such snapping is taking place.
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std::shared_ptr<SnapManager> mSnapManager{};
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ClipMoveState mClipMoveState{};
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bool mGripHit {};
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};
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#endif
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