include/wx/generic/treelay.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        treelay.h
   3 // Purpose:     wxTreeLayout class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     7/4/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Julian Smart
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_TREELAY_H_
  13 #define _WX_TREELAY_H_
  14
  15 #ifdef __GNUG__
  16 #pragma interface "wxtree.h"
  17 #endif
  18
  19 #include <wx/string.h>
  20
  21 class WXDLLEXPORT wxTreeLayout: public wxObject
  22 {
  23     DECLARE_ABSTRACT_CLASS(wxTreeLayout)
  24
  25 public:
  26     wxTreeLayout();
  27
  28     // Redefine these
  29     virtual void GetChildren(long id, wxList& list) = 0;
  30     virtual long GetNextNode(long id) = 0;
  31     virtual long GetNodeParent(long id) = 0;
  32     virtual long GetNodeX(long id) = 0;
  33     virtual long GetNodeY(long id) = 0;
  34     virtual void SetNodeX(long id, long x) = 0;
  35     virtual void SetNodeY(long id, long y) = 0;
  36     virtual void ActivateNode(long id, bool active) = 0;
  37     virtual bool NodeActive(long id) = 0;
  38
  39     // Optional redefinition
  40     void Initialize(void);
  41     inline virtual void SetNodeName(long WXUNUSED(id), const wxString& WXUNUSED(name)) {}
  42     inline virtual wxString GetNodeName(long WXUNUSED(id)) { return wxString(""); }
  43     virtual void GetNodeSize(long id, long *x, long *y, wxDC& dc);
  44     virtual void Draw(wxDC& dc);
  45     virtual void DrawNodes(wxDC& dc);
  46     virtual void DrawBranches(wxDC& dc);
  47     virtual void DrawNode(long id, wxDC& dc);
  48     virtual void DrawBranch(long from, long to, wxDC& dc);
  49
  50     // Don't redefine
  51     virtual void DoLayout(wxDC& dc, long topNode = -1);
  52
  53     // Accessors -- don't redefine
  54     inline void SetTopNode(long id) { m_parentNode = id; }
  55     inline long GetTopNode(void) const { return m_parentNode; }
  56     inline void SetSpacing(long x, long y) { m_xSpacing = x; m_ySpacing = y; }
  57     inline long GetXSpacing(void) const { return m_xSpacing; }
  58     inline long GetYSpacing(void) const { return m_ySpacing; }
  59     inline void SetMargins(long x, long y) { m_leftMargin = x; m_topMargin = y; }
  60     inline long GetTopMargin(void) const { return m_topMargin; }
  61     inline long GetLeftMargin(void) const { return m_leftMargin; }
  62
  63     inline bool GetOrientation(void) const { return m_orientation; }
  64     inline void SetOrientation(bool orient) { m_orientation = orient; }
  65
  66 private:
  67     void CalcLayout(long node_id, int level, wxDC& dc);
  68
  69     // Members
  70
  71 protected:
  72     long          m_parentNode;
  73     long          m_lastY;
  74     long          m_lastX;
  75     long          m_xSpacing;
  76     long          m_ySpacing;
  77     long          m_topMargin;
  78     long          m_leftMargin;
  79     bool          m_orientation; // TRUE for top-to-bottom, FALSE for left-to-right
  80 };
  81
  82 class WXDLLEXPORT wxStoredNode
  83 {
  84 public:
  85     wxString      m_name;
  86     long          m_x, m_y;
  87     long          m_parentId;
  88     bool          m_active;
  89     long          m_clientData;
  90 };
  91
  92 /*
  93  * A version of wxTreeLayout with storage for nodes
  94  */
  95
  96 class WXDLLEXPORT wxTreeLayoutStored: public wxTreeLayout
  97 {
  98     DECLARE_DYNAMIC_CLASS(wxTreeLayoutStored)
  99 public:
 100     wxTreeLayoutStored(int noNodes = 200);
 101     ~wxTreeLayoutStored(void);
 102     void Initialize(int n);
 103
 104     wxString HitTest(wxMouseEvent& event, wxDC& dc);
 105     wxStoredNode* GetNode(long id) const;
 106     inline int GetNumNodes() const { return m_maxNodes; };
 107     inline int GetNodeCount() const { return m_num; };
 108
 109     virtual void GetChildren(long id, wxList& list);
 110     virtual long GetNextNode(long id);
 111     virtual long GetNodeParent(long id);
 112     virtual long GetNodeX(long id);
 113     virtual long GetNodeY(long id);
 114     virtual void SetNodeX(long id, long x);
 115     virtual void SetNodeY(long id, long y);
 116     virtual void SetNodeName(long id, const wxString& name);
 117     virtual wxString GetNodeName(long id);
 118     virtual void ActivateNode(long id, bool active);
 119     virtual bool NodeActive(long id);
 120     virtual void SetClientData(long id, long clientData);
 121     virtual long GetClientData(long id) const;
 122
 123     virtual long AddChild(const wxString& name, const wxString& parent = "");
 124     virtual long NameToId(const wxString& name);
 125
 126     // Data members
 127 private:
 128     wxStoredNode*     m_nodes;
 129     int               m_num;
 130     int               m_maxNodes;
 131 };
 132
 133 // For backward compatibility
 134 #define wxStoredTree wxTreeLayoutStored
 135
 136 #endif
 137  // _WX_TREELAY_H_
 138