mirror of
https://github.com/cookiengineer/audacity
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604fbd0a2c
... and LabelTrack listens to its own events, to update certain state. This is roundabout for now, but that state is view-related and will move into another class.
95 lines
2.5 KiB
C++
95 lines
2.5 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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LabelGlyphHandle.h
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Paul Licameli split from TrackPanel.cpp
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**********************************************************************/
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#ifndef __AUDACITY_LABEL_GLYPH_HANDLE__
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#define __AUDACITY_LABEL_GLYPH_HANDLE__
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#include "LabelDefaultClickHandle.h"
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class wxMouseState;
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class LabelTrack;
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class LabelTrackEvent;
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/// mEdge:
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/// 0 if not over a glyph,
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/// else a bitwise or of :
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/// 1 if over the left-hand glyph,
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/// 2 if over the right-hand glyph on a label,
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/// 4 if over center.
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///
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/// mMouseLabelLeft - index of any left label hit
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/// mMouseLabelRight - index of any right label hit
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///
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struct LabelTrackHit
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{
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LabelTrackHit( const std::shared_ptr<LabelTrack> &pLT );
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~LabelTrackHit();
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int mEdge{};
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int mMouseOverLabelLeft{ -1 }; /// Keeps track of which left label the mouse is currently over.
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int mMouseOverLabelRight{ -1 }; /// Keeps track of which right label the mouse is currently over.
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bool mbIsMoving {};
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bool mIsAdjustingLabel {};
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std::shared_ptr<LabelTrack> mpLT {};
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void OnLabelPermuted( LabelTrackEvent &e );
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};
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class LabelGlyphHandle final : public LabelDefaultClickHandle
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{
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static HitTestPreview HitPreview(bool hitCenter);
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public:
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explicit LabelGlyphHandle
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(const std::shared_ptr<LabelTrack> &pLT,
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const wxRect &rect, const std::shared_ptr<LabelTrackHit> &pHit);
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LabelGlyphHandle &operator=(const LabelGlyphHandle&) = default;
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static UIHandlePtr HitTest
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(std::weak_ptr<LabelGlyphHandle> &holder,
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const wxMouseState &state,
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const std::shared_ptr<LabelTrack> &pLT, const wxRect &rect);
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virtual ~LabelGlyphHandle();
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void Enter(bool forward) 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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bool StopsOnKeystroke() override { return true; }
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std::shared_ptr<LabelTrackHit> mpHit{};
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static UIHandle::Result NeedChangeHighlight
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(const LabelGlyphHandle &oldState, const LabelGlyphHandle &newState);
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private:
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std::shared_ptr<LabelTrack> mpLT {};
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wxRect mRect {};
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};
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#endif
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