Added revamped Object Graphics Library (for node/arc diagrams).

[wxWidgets.git] / utils / ogl / src / canvas.h

diff --git a/utils/ogl/src/canvas.h b/utils/ogl/src/canvas.h
new file mode 100644 (file)
index 0000000..4d33b2d
--- /dev/null
+++ b/utils/ogl/src/canvas.h
@@ -0,0 +1,83 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        canvas.h
+// Purpose:     wxShapeCanvas
+// Author:      Julian Smart
+// Modified by:
+// Created:     12/07/98
+// RCS-ID:      $Id$
+// Copyright:   (c) Julian Smart
+// Licence:    wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _OGL_CANVAS_H_
+#define _OGL_CANVAS_H_
+
+#ifdef __GNUG__
+#pragma interface "canvas.h"
+#endif
+
+// Drag states
+#define NoDragging             0
+#define StartDraggingLeft      1
+#define ContinueDraggingLeft   2
+#define StartDraggingRight     3
+#define ContinueDraggingRight  4
+
+// When drag_count reaches 0, process drag message
+
+class wxDiagram;
+
+class wxShapeCanvas: public wxScrolledWindow
+{
+ DECLARE_DYNAMIC_CLASS(wxShapeCanvas)
+ public:
+  wxShapeCanvas(wxWindow *parent = NULL, wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize,
+               long style = wxBORDER | wxRETAINED);
+  ~wxShapeCanvas();
+
+  inline void SetDiagram(wxDiagram *diag) { m_shapeDiagram = diag; }
+  inline wxDiagram *GetDiagram() const { return m_shapeDiagram; }
+
+  virtual void OnLeftClick(float x, float y, int keys = 0);
+  virtual void OnRightClick(float x, float y, int keys = 0);
+
+  virtual void OnDragLeft(bool draw, float x, float y, int keys=0); // Erase if draw false
+  virtual void OnBeginDragLeft(float x, float y, int keys=0);
+  virtual void OnEndDragLeft(float x, float y, int keys=0);
+
+  virtual void OnDragRight(bool draw, float x, float y, int keys=0); // Erase if draw false
+  virtual void OnBeginDragRight(float x, float y, int keys=0);
+  virtual void OnEndDragRight(float x, float y, int keys=0);
+
+  // Find object for mouse click, of given wxClassInfo (NULL for any type).
+  // If notImage is non-NULL, don't find an object that is equal to or a descendant of notImage
+  virtual wxShape *FindShape(float x, float y, int *attachment, wxClassInfo *info = NULL, wxShape *notImage = NULL);
+  wxShape *FindFirstSensitiveShape(float x, float y, int *new_attachment, int op);
+  wxShape *FindFirstSensitiveShape1(wxShape *image, int op);
+  
+  // Redirect to wxDiagram object
+  virtual void AddShape(wxShape *object, wxShape *addAfter = NULL);
+  virtual void InsertShape(wxShape *object);
+  virtual void RemoveShape(wxShape *object);
+  virtual bool GetQuickEditMode();
+  virtual void Redraw(wxDC& dc);
+  void Snap(float *x, float *y);
+
+  // Events
+  void OnPaint(wxPaintEvent& event);
+  void OnMouseEvent(wxMouseEvent& event);
+
+ protected:
+  wxDiagram*        m_shapeDiagram;
+  int               m_dragState;
+  float             m_oldDragX, m_oldDragY;     // Previous drag coordinates
+  float             m_firstDragX, m_firstDragY; // INITIAL drag coordinates
+  bool              m_checkTolerance;           // Whether to check drag tolerance
+  wxShape*          m_draggedShape;
+  int               m_draggedAttachment;
+
+DECLARE_EVENT_TABLE()
+};
+
+#endif
+ // _OGL_CANVAS_H_