wxWidgets/include/wx/gtk/treectrl.h

/////////////////////////////////////////////////////////////////////////////
// Name:        treectrl.h
// Purpose:     wxTreeCtrl class
// Author:      Denis Pershin
// Modified by:
// Created:     08/08/98
// RCS-ID:      $Id$
// Copyright:   (c) Denis Pershin
// Licence:   	wxWindows license
/////////////////////////////////////////////////////////////////////////////

#ifndef _WX_TREECTRL_H_
#define _WX_TREECTRL_H_

#ifdef __GNUG__
#pragma interface "treectrl.h"
#endif

#include "wx/textctrl.h"
#include "wx/control.h"
#include "wx/event.h"
#include "wx/imaglist.h"

#include <gtk/gtk.h>

// WXDLLEXPORT_DATA(extern const char*) wxTreeNameStr;

#define wxTREE_MASK_HANDLE          0x0001
#define wxTREE_MASK_STATE           0x0002
#define wxTREE_MASK_TEXT            0x0004
#define wxTREE_MASK_IMAGE           0x0008
#define wxTREE_MASK_SELECTED_IMAGE  0x0010
#define wxTREE_MASK_CHILDREN        0x0020
#define wxTREE_MASK_DATA            0x0040

#define wxTREE_STATE_BOLD           0x0001
#define wxTREE_STATE_DROPHILITED    0x0002
#define wxTREE_STATE_EXPANDED       0x0004
#define wxTREE_STATE_EXPANDEDONCE   0x0008
#define wxTREE_STATE_FOCUSED        0x0010
#define wxTREE_STATE_SELECTED       0x0020
#define wxTREE_STATE_CUT            0x0040

#define wxTREE_HITTEST_ABOVE            0x0001  // Above the client area.
#define wxTREE_HITTEST_BELOW            0x0002  // Below the client area.
#define wxTREE_HITTEST_NOWHERE          0x0004  // In the client area but below the last item.
#define wxTREE_HITTEST_ONITEMBUTTON     0x0010  // On the button associated with an item.
#define wxTREE_HITTEST_ONITEMICON       0x0020  // On the bitmap associated with an item.
#define wxTREE_HITTEST_ONITEMINDENT     0x0040  // In the indentation associated with an item.
#define wxTREE_HITTEST_ONITEMLABEL      0x0080  // On the label (string) associated with an item.
#define wxTREE_HITTEST_ONITEMRIGHT      0x0100  // In the area to the right of an item.
#define wxTREE_HITTEST_ONITEMSTATEICON  0x0200  // On the state icon for a tree view item that is in a user-defined state.
#define wxTREE_HITTEST_TOLEFT           0x0400  // To the right of the client area.
#define wxTREE_HITTEST_TORIGHT          0x0800  // To the left of the client area.

#define wxTREE_HITTEST_ONITEM (wxTREE_HITTEST_ONITEMICON | wxTREE_HITTEST_ONITEMLABEL | wxTREE_HITTEST_ONITEMSTATEICON)

// Flags for GetNextItem
enum {
    wxTREE_NEXT_CARET,                 // Retrieves the currently selected item.
    wxTREE_NEXT_CHILD,                 // Retrieves the first child item. The hItem parameter must be NULL.
    wxTREE_NEXT_DROPHILITE,            // Retrieves the item that is the target of a drag-and-drop operation.
    wxTREE_NEXT_FIRSTVISIBLE,          // Retrieves the first visible item.
    wxTREE_NEXT_NEXT,                 // Retrieves the next sibling item.
    wxTREE_NEXT_NEXTVISIBLE,           // Retrieves the next visible item that follows the specified item.
    wxTREE_NEXT_PARENT,                // Retrieves the parent of the specified item.
    wxTREE_NEXT_PREVIOUS,              // Retrieves the previous sibling item.
    wxTREE_NEXT_PREVIOUSVISIBLE,       // Retrieves the first visible item that precedes the specified item.
    wxTREE_NEXT_ROOT                   // Retrieves the first child item of the root item of which the specified item is a part.
};

// Flags for ExpandItem
enum {
    wxTREE_EXPAND_EXPAND,
    wxTREE_EXPAND_COLLAPSE,
    wxTREE_EXPAND_COLLAPSE_RESET,
    wxTREE_EXPAND_TOGGLE
};

// Flags for InsertItem
#define wxTREE_INSERT_FIRST 0xFFFF0001
#define wxTREE_INSERT_LAST  0xFFFF0002
#define wxTREE_INSERT_SORT  0xFFFF0003

class WXDLLEXPORT wxTreeItem: public wxObject
{
 DECLARE_DYNAMIC_CLASS(wxTreeItem)
public:
    long            m_mask;
    long            m_itemId;
    long            m_state;
    long            m_stateMask;
    wxString        m_text;
    int             m_image;
    int             m_selectedImage;
    int             m_children;
    long            m_data;

    wxTreeItem();

// Accessors
    inline long GetMask() const { return m_mask; }
    inline long GetItemId() const { return m_itemId; }
    inline long GetState() const { return m_state; }
    inline long GetStateMask() const { return m_stateMask; }
    inline wxString GetText() const { return m_text; }
    inline int GetImage() const { return m_image; }
    inline int GetSelectedImage() const { return m_selectedImage; }
    inline int GetChildren() const { return m_children; }
    inline long GetData() const { return m_data; }

    inline void SetMask(long mask) { m_mask = mask; }
    inline void SetItemId(long id) { m_itemId = m_itemId = id; }
    inline void SetState(long state) { m_state = state; }
    inline void SetStateMask(long stateMask) { m_stateMask = stateMask; }
    inline void GetText(const wxString& text) { m_text = text; }
    inline void SetImage(int image) { m_image = image; }
    inline void GetSelectedImage(int selImage) { m_selectedImage = selImage; }
    inline void SetChildren(int children) { m_children = children; }
    inline void SetData(long data) { m_data = data; }
};

class WXDLLEXPORT wxTreeCtrl: public wxControl {
public:
 /*
  * Public interface
  */
    
  // creation
  // --------
  wxTreeCtrl();
    
  inline wxTreeCtrl(wxWindow *parent, wxWindowID id = -1,
      const wxPoint& pos = wxDefaultPosition,
      const wxSize& size = wxDefaultSize,
      long style = wxTR_HAS_BUTTONS|wxTR_LINES_AT_ROOT,
      const wxValidator& validator = wxDefaultValidator,
      const wxString& name = "wxTreeCtrl") {
      Create(parent, id, pos, size, style, validator, name);
  }
  ~wxTreeCtrl();
  
  bool Create(wxWindow *parent, wxWindowID id = -1,
              const wxPoint& pos = wxDefaultPosition,
              const wxSize& size = wxDefaultSize,
              long style = wxTR_HAS_BUTTONS|wxTR_LINES_AT_ROOT,
              const wxValidator& validator = wxDefaultValidator,
              const wxString& name = "wxTreeCtrl");
    
  // accessors
  // ---------
    //
  int GetCount() const;

    // indent
  int GetIndent() const;
  void SetIndent(int indent);
    // image list
  wxImageList *GetImageList(int which = wxIMAGE_LIST_NORMAL) const;
  void SetImageList(wxImageList *imageList, int which = wxIMAGE_LIST_NORMAL);

    // navigation inside the tree
  long GetNextItem(long item, int code) const;
  bool ItemHasChildren(long item) const;
  long GetChild(long item) const;
  long GetParent(long item) const;
  long GetFirstVisibleItem() const;
  long GetNextVisibleItem(long item) const;
  long GetSelection() const;
  long GetRootItem() const;

    // generic function for (g|s)etting item attributes
  bool GetItem(wxTreeItem& info) const;
  bool SetItem(wxTreeItem& info);
    // item state
  int  GetItemState(long item, long stateMask) const;
  bool SetItemState(long item, long state, long stateMask);
    // item image
  bool SetItemImage(long item, int image, int selImage);
    // item text
  wxString GetItemText(long item) const;
  void SetItemText(long item, const wxString& str);
    // custom data associated with the item
  long GetItemData(long item) const;
  bool SetItemData(long item, long data);
    // convenience function
  bool IsItemExpanded(long item) { 
    return (GetItemState(item, wxTREE_STATE_EXPANDED) & 
                         wxTREE_STATE_EXPANDED) != 0;
  }

    // bounding rect
  bool GetItemRect(long item, wxRectangle& rect, bool textOnly = FALSE) const;
    //
  wxTextCtrl* GetEditControl() const;
    
    // operations
    // ----------
    // adding/deleting items
  bool DeleteItem(long item);
  long InsertItem(long parent, wxTreeItem& info,
                  long insertAfter = wxTREE_INSERT_LAST);
  // If image > -1 and selImage == -1, the same image is used for
  // both selected and unselected items.
  long InsertItem(long parent, const wxString& label,
                  int image = -1, int selImage = -1, 
                  long insertAfter = wxTREE_INSERT_LAST);

  // changing item state
  bool ExpandItem(long item)   { return ExpandItem(item, wxTREE_EXPAND_EXPAND);   }
  bool CollapseItem(long item) { return ExpandItem(item, wxTREE_EXPAND_COLLAPSE); }
  bool ToggleItem(long item)   { return ExpandItem(item, wxTREE_EXPAND_TOGGLE);   }
  // common interface for {Expand|Collapse|Toggle}Item
  bool ExpandItem(long item, int action);
    
  // 
  bool SelectItem(long item);
  bool ScrollTo(long item);
  bool DeleteAllItems();
  bool DeleteChildren(long item);

  // Edit the label (tree must have the focus)
  wxTextCtrl* EditLabel(long item, wxClassInfo* textControlClass = CLASSINFO(wxTextCtrl));

  // End label editing, optionally cancelling the edit
  bool EndEditLabel(bool cancel);

  long HitTest(const wxPoint& point, int& flags);
  //  wxImageList *CreateDragImage(long item);
  bool SortChildren(long item);
  bool EnsureVisible(long item);

  void SendExpanding(long item);
  void SendExpanded(long item);
  void SendCollapsing(long item);
  void SendCollapsed(long item);
  void SendSelChanging(long item);
  void SendSelChanged(long item);
protected:
  GtkTree *m_tree;
  GtkTreeItem *m_anchor;
  wxTextCtrl*  m_textCtrl;
  wxImageList* m_imageListNormal;
  wxImageList* m_imageListState;

  long m_curitemId;

  GtkTreeItem *findGtkTreeItem(long item) const;

  DECLARE_DYNAMIC_CLASS(wxTreeCtrl)
};

/*
 wxEVT_COMMAND_TREE_BEGIN_DRAG,
 wxEVT_COMMAND_TREE_BEGIN_RDRAG,
 wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT,
 wxEVT_COMMAND_TREE_END_LABEL_EDIT,
 wxEVT_COMMAND_TREE_DELETE_ITEM,
 wxEVT_COMMAND_TREE_GET_INFO,
 wxEVT_COMMAND_TREE_SET_INFO,
 wxEVT_COMMAND_TREE_ITEM_EXPANDED,
 wxEVT_COMMAND_TREE_ITEM_EXPANDING,
 wxEVT_COMMAND_TREE_ITEM_COLLAPSED,
 wxEVT_COMMAND_TREE_ITEM_COLLAPSING,
 wxEVT_COMMAND_TREE_SEL_CHANGED,
 wxEVT_COMMAND_TREE_SEL_CHANGING,
 wxEVT_COMMAND_TREE_KEY_DOWN
*/

class WXDLLEXPORT wxTreeEvent: public wxCommandEvent
{
  DECLARE_DYNAMIC_CLASS(wxTreeEvent)

 public:
  wxTreeEvent(wxEventType commandType = wxEVT_NULL, int id = 0);

  int           m_code;
  wxTreeItem    m_item;
  long          m_oldItem;
  wxPoint       m_pointDrag;

  inline long GetOldItem() const { return m_oldItem; }
  inline wxTreeItem& GetItem() const { return (wxTreeItem&) m_item; }
  inline wxPoint GetPoint() const { return m_pointDrag; }
  inline int GetCode() const { return m_code; }
};

typedef void (wxEvtHandler::*wxTreeEventFunction)(wxTreeEvent&);

#define EVT_TREE_BEGIN_DRAG(id, fn) { wxEVT_COMMAND_TREE_BEGIN_DRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
#define EVT_TREE_BEGIN_RDRAG(id, fn) { wxEVT_COMMAND_TREE_BEGIN_RDRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
#define EVT_TREE_BEGIN_LABEL_EDIT(id, fn) { wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
#define EVT_TREE_END_LABEL_EDIT(id, fn) { wxEVT_COMMAND_TREE_END_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
#define EVT_TREE_DELETE_ITEM(id, fn) { wxEVT_COMMAND_TREE_DELETE_ITEM, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
#define EVT_TREE_GET_INFO(id, fn) { wxEVT_COMMAND_TREE_GET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
#define EVT_TREE_SET_INFO(id, fn) { wxEVT_COMMAND_TREE_SET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
#define EVT_TREE_ITEM_EXPANDED(id, fn) { wxEVT_COMMAND_TREE_ITEM_EXPANDED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
#define EVT_TREE_ITEM_EXPANDING(id, fn) { wxEVT_COMMAND_TREE_ITEM_EXPANDING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
#define EVT_TREE_ITEM_COLLAPSED(id, fn) { wxEVT_COMMAND_TREE_ITEM_COLLAPSED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
#define EVT_TREE_ITEM_COLLAPSING(id, fn) { wxEVT_COMMAND_TREE_ITEM_COLLAPSING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
#define EVT_TREE_SEL_CHANGED(id, fn) { wxEVT_COMMAND_TREE_SEL_CHANGED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
#define EVT_TREE_SEL_CHANGING(id, fn) { wxEVT_COMMAND_TREE_SEL_CHANGING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
#define EVT_TREE_KEY_DOWN(id, fn) { wxEVT_COMMAND_TREE_KEY_DOWN, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },

#endif
    // _WX_TREECTRL_H_