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 #if defined(__GNUG__) && !defined(__APPLE__)
  16 #pragma interface "canvas.h"
  17 #endif
  18
  19
  20 // Drag states
  21 #define NoDragging             0
  22 #define StartDraggingLeft      1
  23 #define ContinueDraggingLeft   2
  24 #define StartDraggingRight     3
  25 #define ContinueDraggingRight  4
  26
  27 WXDLLIMPEXP_OGL extern const wxChar* wxShapeCanvasNameStr;
  28
  29 // When drag_count reaches 0, process drag message
  30
  31 class WXDLLIMPEXP_OGL wxDiagram;
  32
  33 class WXDLLIMPEXP_OGL wxShapeCanvas: public wxScrolledWindow
  34 {
  35  DECLARE_DYNAMIC_CLASS(wxShapeCanvas)
  36  public:
  37   wxShapeCanvas(wxWindow *parent = NULL, wxWindowID id = wxID_ANY,
  38                 const wxPoint& pos = wxDefaultPosition,
  39                 const wxSize& size = wxDefaultSize,
  40                 long style = wxBORDER | wxRETAINED,
  41                 const wxString& name = wxShapeCanvasNameStr);
  42   ~wxShapeCanvas();
  43
  44   inline void SetDiagram(wxDiagram *diag) { m_shapeDiagram = diag; }
  45   inline wxDiagram *GetDiagram() const { return m_shapeDiagram; }
  46
  47   virtual void OnLeftClick(double x, double y, int keys = 0);
  48   virtual void OnRightClick(double x, double y, int keys = 0);
  49
  50   virtual void OnDragLeft(bool draw, double x, double y, int keys=0); // Erase if draw false
  51   virtual void OnBeginDragLeft(double x, double y, int keys=0);
  52   virtual void OnEndDragLeft(double x, double y, int keys=0);
  53
  54   virtual void OnDragRight(bool draw, double x, double y, int keys=0); // Erase if draw false
  55   virtual void OnBeginDragRight(double x, double y, int keys=0);
  56   virtual void OnEndDragRight(double x, double y, int keys=0);
  57
  58   // Find object for mouse click, of given wxClassInfo (NULL for any type).
  59   // If notImage is non-NULL, don't find an object that is equal to or a descendant of notImage
  60   virtual wxShape *FindShape(double x, double y, int *attachment, wxClassInfo *info = NULL, wxShape *notImage = NULL);
  61   wxShape *FindFirstSensitiveShape(double x, double y, int *new_attachment, int op);
  62   wxShape *FindFirstSensitiveShape1(wxShape *image, int op);
  63
  64   // Redirect to wxDiagram object
  65   virtual void AddShape(wxShape *object, wxShape *addAfter = NULL);
  66   virtual void InsertShape(wxShape *object);
  67   virtual void RemoveShape(wxShape *object);
  68   virtual bool GetQuickEditMode();
  69   virtual void Redraw(wxDC& dc);
  70   void Snap(double *x, double *y);
  71
  72   // Events
  73   void OnPaint(wxPaintEvent& event);
  74   void OnMouseEvent(wxMouseEvent& event);
  75
  76  protected:
  77   wxDiagram*        m_shapeDiagram;
  78   int               m_dragState;
  79   double             m_oldDragX, m_oldDragY;     // Previous drag coordinates
  80   double             m_firstDragX, m_firstDragY; // INITIAL drag coordinates
  81   bool              m_checkTolerance;           // Whether to check drag tolerance
  82   wxShape*          m_draggedShape;
  83   int               m_draggedAttachment;
  84
  85 DECLARE_EVENT_TABLE()
  86 };
  87
  88 #endif
  89  // _OGL_CANVAS_H_