Move class CellularPanel into its own files

src/TrackPanel.h

@@ -22,7 +22,7 @@
 
 #include "SelectedRegion.h"
 
-#include "widgets/OverlayPanel.h"
+#include "CellularPanel.h"
 
 #include "SelectionState.h"
 
@@ -34,7 +34,6 @@ class SpectrumAnalyst;
 class Track;
 class TrackList;
 class TrackPanel;
-class TrackPanelCell;
 class TrackArtist;
 class Ruler;
 class SnapManager;
@@ -43,20 +42,13 @@ class LWSlider;
 class ControlToolBar; //Needed because state of controls can affect what gets drawn.
 class ToolsToolBar; //Needed because state of controls can affect what gets drawn.
 class MixerBoard;
-class AudacityProject;
 
 class TrackPanelAx;
 class TrackPanelCellIterator;
-struct TrackPanelMouseEvent;
-struct TrackPanelMouseState;
-
-class ViewInfo;
 
 class NoteTrack;
 class WaveTrack;
 class WaveClip;
-class UIHandle;
-using UIHandlePtr = std::shared_ptr<UIHandle>;
 
 // Declared elsewhere, to reduce compilation dependencies
 class TrackPanelListener;
@@ -242,127 +234,6 @@ private:
 const int DragThreshold = 3;// Anything over 3 pixels is a drag, else a click.
 
 
-// This class manages a panel divided into a number of sub-rectangles called
-// cells, that each implement hit tests returning click-drag-release handler
-// objects, and other services.
-// It has no dependency on the Track class.
-class AUDACITY_DLL_API CellularPanel : public OverlayPanel {
-public:
-   CellularPanel(wxWindow * parent, wxWindowID id,
-                const wxPoint & pos,
-                const wxSize & size,
-                ViewInfo *viewInfo,
-                // default as for wxPanel:
-                long style = wxTAB_TRAVERSAL | wxNO_BORDER)
-   : OverlayPanel(parent, id, pos, size, style)
-   , mViewInfo( viewInfo )
-   {}
-
-   // Overridables:
-
-   virtual AudacityProject *GetProject() const = 0;
-
-   // Find track info by coordinate
-   struct FoundCell {
-      std::shared_ptr<TrackPanelCell> pCell;
-      wxRect rect;
-   };
-   virtual FoundCell FindCell(int mouseX, int mouseY) = 0;
-   virtual wxRect FindRect(const TrackPanelCell &cell) = 0;
-   virtual TrackPanelCell *GetFocusedCell() = 0;
-   virtual void SetFocusedCell() = 0;
-
-   virtual void ProcessUIHandleResult
-      (TrackPanelCell *pClickedCell, TrackPanelCell *pLatestCell,
-       unsigned refreshResult) = 0;
-
-   virtual void UpdateStatusMessage( const wxString & ) = 0;
-
-public:
-   UIHandlePtr Target()
-   {
-      if (mTargets.size())
-         return mTargets[mTarget];
-      else
-         return {};
-   }
-
-   bool IsMouseCaptured();
-
-   wxCoord MostRecentXCoord() const { return mMouseMostRecentX; }
-
-   void HandleCursorForPresentMouseState(bool doHit = true);
-   
-protected:
-   bool HasEscape();
-   bool CancelDragging();
-   void ClearTargets()
-   {
-      // Forget the rotation of hit test candidates when the mouse moves from
-      // cell to cell or outside of the panel entirely.
-      mLastCell.reset();
-      mTargets.clear();
-      mTarget = 0;
-      mMouseOverUpdateFlags = 0;
-   }
-   void DoContextMenu( TrackPanelCell *pCell = nullptr );
-   
-private:
-   bool HasRotation();
-   bool ChangeTarget(bool forward, bool cycle);
-
-   void OnMouseEvent(wxMouseEvent & event);
-   void OnCaptureLost(wxMouseCaptureLostEvent & event);
-   void OnCaptureKey(wxCommandEvent & event);
-   void OnKeyDown(wxKeyEvent & event);
-   void OnChar(wxKeyEvent & event);
-   void OnKeyUp(wxKeyEvent & event);
-
-   void OnSetFocus(wxFocusEvent & event);
-   void OnKillFocus(wxFocusEvent & event);
-
-   void OnContextMenu(wxContextMenuEvent & event);
-
-   void HandleInterruptedDrag();
-   void Uncapture( wxMouseState *pState = nullptr );
-   bool HandleEscapeKey(bool down);
-   void UpdateMouseState(const wxMouseState &state);
-   void HandleModifierKey();
-
-   void HandleClick( const TrackPanelMouseEvent &tpmEvent );
-   void HandleWheelRotation( TrackPanelMouseEvent &tpmEvent );
-   
-   void HandleMotion( wxMouseState &state, bool doHit = true );
-   void HandleMotion
-      ( const TrackPanelMouseState &tpmState, bool doHit = true );
-
-
-protected:
-   ViewInfo *mViewInfo;
-
-private:
-   UIHandlePtr mUIHandle;
-   
-   std::weak_ptr<TrackPanelCell> mLastCell;
-   std::vector<UIHandlePtr> mTargets;
-   size_t mTarget {};
-   unsigned mMouseOverUpdateFlags{};
-
-protected:
-   // To do: make a drawing method and make this private
-   wxMouseState mLastMouseState;
-
-private:
-   int mMouseMostRecentX;
-   int mMouseMostRecentY;
-
-   std::weak_ptr<TrackPanelCell> mpClickedCell;
-
-   bool mEnableTab{};
-
-   DECLARE_EVENT_TABLE()
-};
-
 class AUDACITY_DLL_API TrackPanel final : public CellularPanel {
 
  public:
@@ -606,7 +477,7 @@ protected:
    DECLARE_EVENT_TABLE()
 
    void ProcessUIHandleResult
-      (TrackPanelCell *pClickedCell, TrackPanelCell *pLatestCell,
+      (TrackPanelCell *pClickedTrack, TrackPanelCell *pLatestCell,
        unsigned refreshResult) override;
 
    void UpdateStatusMessage( const wxString &status ) override;