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