contrib/include/wx/ogl/canvas.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        canvas.h
   3 // Purpose:     wxShapeCanvas
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     12/07/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _OGL_CANVAS_H_
  13 #define _OGL_CANVAS_H_
  14
  15
  16 // Drag states
  17 #define NoDragging             0
  18 #define StartDraggingLeft      1
  19 #define ContinueDraggingLeft   2
  20 #define StartDraggingRight     3
  21 #define ContinueDraggingRight  4
  22
  23 WXDLLIMPEXP_OGL extern const wxChar* wxShapeCanvasNameStr;
  24
  25 // When drag_count reaches 0, process drag message
  26
  27 class WXDLLIMPEXP_OGL wxDiagram;
  28
  29 class WXDLLIMPEXP_OGL wxShapeCanvas: public wxScrolledWindow
  30 {
  31  DECLARE_DYNAMIC_CLASS(wxShapeCanvas)
  32  public:
  33   wxShapeCanvas(wxWindow *parent = NULL, wxWindowID id = wxID_ANY,
  34                 const wxPoint& pos = wxDefaultPosition,
  35                 const wxSize& size = wxDefaultSize,
  36                 long style = wxBORDER | wxRETAINED,
  37                 const wxString& name = wxShapeCanvasNameStr);
  38   ~wxShapeCanvas();
  39
  40   inline void SetDiagram(wxDiagram *diag) { m_shapeDiagram = diag; }
  41   inline wxDiagram *GetDiagram() const { return m_shapeDiagram; }
  42
  43   virtual void OnLeftClick(double x, double y, int keys = 0);
  44   virtual void OnRightClick(double x, double y, int keys = 0);
  45
  46   virtual void OnDragLeft(bool draw, double x, double y, int keys=0); // Erase if draw false
  47   virtual void OnBeginDragLeft(double x, double y, int keys=0);
  48   virtual void OnEndDragLeft(double x, double y, int keys=0);
  49
  50   virtual void OnDragRight(bool draw, double x, double y, int keys=0); // Erase if draw false
  51   virtual void OnBeginDragRight(double x, double y, int keys=0);
  52   virtual void OnEndDragRight(double x, double y, int keys=0);
  53
  54   // Find object for mouse click, of given wxClassInfo (NULL for any type).
  55   // If notImage is non-NULL, don't find an object that is equal to or a descendant of notImage
  56   virtual wxShape *FindShape(double x, double y, int *attachment, wxClassInfo *info = NULL, wxShape *notImage = NULL);
  57   wxShape *FindFirstSensitiveShape(double x, double y, int *new_attachment, int op);
  58   wxShape *FindFirstSensitiveShape1(wxShape *image, int op);
  59
  60   // Redirect to wxDiagram object
  61   virtual void AddShape(wxShape *object, wxShape *addAfter = NULL);
  62   virtual void InsertShape(wxShape *object);
  63   virtual void RemoveShape(wxShape *object);
  64   virtual bool GetQuickEditMode();
  65   virtual void Redraw(wxDC& dc);
  66   void Snap(double *x, double *y);
  67
  68   // Events
  69   void OnPaint(wxPaintEvent& event);
  70   void OnMouseEvent(wxMouseEvent& event);
  71
  72  protected:
  73   wxDiagram*        m_shapeDiagram;
  74   int               m_dragState;
  75   double             m_oldDragX, m_oldDragY;     // Previous drag coordinates
  76   double             m_firstDragX, m_firstDragY; // INITIAL drag coordinates
  77   bool              m_checkTolerance;           // Whether to check drag tolerance
  78   wxShape*          m_draggedShape;
  79   int               m_draggedAttachment;
  80
  81 DECLARE_EVENT_TABLE()
  82 };
  83
  84 #endif
  85  // _OGL_CANVAS_H_