[wxWidgets.git] / include / wx / os2 / treectrl.h

/////////////////////////////////////////////////////////////////////////////
// Name:        wx/os2/treectrl.h
// Purpose:     wxTreeCtrl class
// Author:      David Webster
// Modified by:
// Created:     01/23/03
// RCS-ID:      $Id$
// Copyright:   (c) David Webster
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef _WX_TREECTRL_H_
#define _WX_TREECTRL_H_

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

#if wxUSE_TREECTRL

#include "wx/textctrl.h"
#include "wx/dynarray.h"
#include "wx/treebase.h"
#include "wx/hashmap.h"

// the type for "untyped" data
typedef long wxDataType;

// fwd decl
class  WXDLLEXPORT wxImageList;
class  WXDLLEXPORT wxDragImage;
struct WXDLLEXPORT wxTreeViewItem;

// a callback function used for sorting tree items, it should return -1 if the
// first item precedes the second, +1 if the second precedes the first or 0 if
// they're equivalent
class wxTreeItemData;

// flags for deprecated InsertItem() variant
#define wxTREE_INSERT_FIRST 0xFFFF0001
#define wxTREE_INSERT_LAST  0xFFFF0002

// hash storing attributes for our items
WX_DECLARE_EXPORTED_VOIDPTR_HASH_MAP(wxTreeItemAttr *, wxMapTreeAttr);

// ----------------------------------------------------------------------------
// wxTreeCtrl
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxTreeCtrl : public wxControl
{
public:
    // creation
    // --------
    wxTreeCtrl() { Init(); }

    wxTreeCtrl( wxWindow*          pParent
               ,wxWindowID         vId = wxID_ANY
               ,const wxPoint&     rPos = wxDefaultPosition
               ,const wxSize&      rSize = wxDefaultSize
               ,long               lStyle = wxTR_HAS_BUTTONS | wxTR_LINES_AT_ROOT
               ,const wxValidator& rValidator = wxDefaultValidator
               ,const wxString&    rsName = wxTreeCtrlNameStr
              )
    {
        Create( pParent
               ,vId
               ,rPos
               ,rSize
               ,lStyle
               ,rValidator
               ,rsName
              );
    }
    virtual ~wxTreeCtrl();

    bool Create( wxWindow*          pParent
                ,wxWindowID         vId = wxID_ANY
                ,const wxPoint&     rPos = wxDefaultPosition
                ,const wxSize&      rSize = wxDefaultSize
                ,long               lStyle = wxTR_HAS_BUTTONS | wxTR_LINES_AT_ROOT
                ,const wxValidator& rValidator = wxDefaultValidator
                ,const wxString&    rsName = wxTreeCtrlNameStr
               );

    //
    // Accessors
    // ---------
    //

    //
    // Get the total number of items in the control
    //
    virtual unsigned int GetCount(void) const;

    //
    // Indent is the number of pixels the children are indented relative to
    // the parents position. SetIndent() also redraws the control
    // immediately.
    //
    unsigned int GetIndent(void) const;
    void         SetIndent(unsigned int uIndent);

    //
    // Spacing is the number of pixels between the start and the Text
    //
    unsigned int GetSpacing(void) const { return 18; } // return wxGTK default
    void SetSpacing(unsigned int uSpacing) { }

    //
    // Image list: these functions allow to associate an image list with
    // the control and retrieve it. Note that the control does _not_ delete
    // the associated image list when it's deleted in order to allow image
    // lists to be shared between different controls.
    //
    // OS/2 doesn't really use imagelists as MSW does, but since the MSW
    // control is the basis for this one, until I decide how to get rid of
    // the need for them they are here for now.
    //
    wxImageList* GetImageList(void) const;
    wxImageList* GetStateImageList(void) const;

    void         AssignImageList(wxImageList* pImageList);
    void         AssignStateImageList(wxImageList* pImageList);
    void         SetImageList(wxImageList* pImageList);
    void         SetStateImageList(wxImageList* pImageList);

    //
    // Functions to work with tree ctrl items. Unfortunately, they can _not_ be
    // member functions of wxTreeItem because they must know the tree the item
    // belongs to for Windows implementation and storing the pointer to
    // wxTreeCtrl in each wxTreeItem is just too much waste.

    //
    // Item's label
    //
    wxString GetItemText(const wxTreeItemId& rItem) const;
    void     SetItemText( const wxTreeItemId& rItem
                         ,const wxString&     rsText
                        );

    //
    // One of the images associated with the item (normal by default)
    //
    int  GetItemImage( const wxTreeItemId& rItem
                      ,wxTreeItemIcon      vWhich = wxTreeItemIcon_Normal
                     ) const;
    void SetItemImage( const wxTreeItemId& rItem
                      ,int                 nImage
                      ,wxTreeItemIcon      vWhich = wxTreeItemIcon_Normal
                     );

    //
    // Data associated with the item
    //
    wxTreeItemData* GetItemData(const wxTreeItemId& rItem) const;
    void            SetItemData( const wxTreeItemId& rItem
                                ,wxTreeItemData*     pData
                               );

    //
    // Item's text colour
    //
    wxColour GetItemTextColour(const wxTreeItemId& rItem) const;
    void     SetItemTextColour( const wxTreeItemId& rItem
                               ,const wxColour&     rColor
                              );

    //
    // Item's background colour
    //
    wxColour GetItemBackgroundColour(const wxTreeItemId& rItem) const;
    void     SetItemBackgroundColour( const wxTreeItemId& rItem
                                     ,const wxColour&     rColour
                                    );

    //
    // Item's font
    //
    wxFont GetItemFont(const wxTreeItemId& rItem) const;
    void   SetItemFont( const wxTreeItemId& rItem
                       ,const wxFont&       rFont
                      );

    //
    // Force appearance of [+] button near the item. This is useful to
    // allow the user to expand the items which don't have any children now
    // - but instead add them only when needed, thus minimizing memory
    // usage and loading time.
    //
    void SetItemHasChildren( const wxTreeItemId& rItem
                            ,bool                bHas = true
                           );

    //
    // The item will be shown in bold
    //
    void SetItemBold( const wxTreeItemId& rItem
                     ,bool                bBold = true
                    );

    //
    // The item will be shown with a drop highlight
    //
    void SetItemDropHighlight( const wxTreeItemId& rItem
                              ,bool                bHighlight = true
                             );

    //
    // Item status inquiries
    // ---------------------
    //

    //
    // Is the item visible (it might be outside the view or not expanded)?
    //
    bool IsVisible(const wxTreeItemId& rItem) const;

    //
    // Does the item has any children?
    //
    bool ItemHasChildren(const wxTreeItemId& rItem) const;

    //
    // Is the item expanded (only makes sense if HasChildren())?
    //
    bool IsExpanded(const wxTreeItemId& rItem) const;

    //
    // Is this item currently selected (the same as has focus)?
    //
    bool IsSelected(const wxTreeItemId& rItem) const;

    //
    // Is item text in bold font?
    //
    bool IsBold(const wxTreeItemId& rItem) const;

    //
    // Number of children
    // ------------------
    //

    //
    // If 'bRecursively' is false, only immediate children count, otherwise
    // the returned number is the number of all items in this branch
    //
    size_t GetChildrenCount( const wxTreeItemId& rItem
                            ,bool                bRecursively = true
                           ) const;

    //
    // Navigation
    // ----------
    //

    //
    // Get the root tree item
    //
    wxTreeItemId GetRootItem(void) const;

    //
    // Get the item currently selected (may return NULL if no selection)
    //
    wxTreeItemId GetSelection(void) const;

    //
    // Get the items currently selected, return the number of such item
    //
    size_t GetSelections(wxArrayTreeItemIds& rSelections) const;

    //
    // Get the parent of this item (may return NULL if root)
    //
    wxTreeItemId GetItemParent(const wxTreeItemId& rItem) const;

        // for this enumeration function you must pass in a "cookie" parameter
        // which is opaque for the application but is necessary for the library
        // to make these functions reentrant (i.e. allow more than one
        // enumeration on one and the same object simultaneously). Of course,
        // the "cookie" passed to GetFirstChild() and GetNextChild() should be
        // the same!

        // get the first child of this item
    wxTreeItemId GetFirstChild(const wxTreeItemId& item,
                               wxTreeItemIdValue& cookie) const;
        // get the next child
    wxTreeItemId GetNextChild(const wxTreeItemId& item,
                              wxTreeItemIdValue& cookie) const;

    //
    // Get the last child of this item - this method doesn't use cookies
    //
    wxTreeItemId GetLastChild(const wxTreeItemId& rItem) const;

    //
    // Get the next sibling of this item
    //
    wxTreeItemId GetNextSibling(const wxTreeItemId& rItem) const;

    //
    // Get the previous sibling
    //
    wxTreeItemId GetPrevSibling(const wxTreeItemId& rItem) const;

    //
    // Get first visible item
    //
    wxTreeItemId GetFirstVisibleItem(void) const;

    //
    // Get the next visible item: item must be visible itself!
    // see IsVisible() and wxTreeCtrl::GetFirstVisibleItem()
    //
    wxTreeItemId GetNextVisible(const wxTreeItemId& rItem) const;

    //
    // Get the previous visible item: item must be visible itself!
    //
    wxTreeItemId GetPrevVisible(const wxTreeItemId& rItem) const;

    //
    // Operations
    // ----------
    //

    //
    // Add the root node to the tree
    //
    wxTreeItemId AddRoot( const wxString& rsText
                         ,int             nImage = -1
                         ,int             nSelectedImage = -1
                         ,wxTreeItemData* pData = NULL
                        );

    //
    // Insert a new item in as the first child of the parent
    //
    wxTreeItemId PrependItem( const wxTreeItemId& rParent
                             ,const wxString&     rsText
                             ,int                 nImage = -1
                             ,int                 nSelectedImage = -1
                             ,wxTreeItemData*     pData = NULL
                            );

    //
    // Insert a new item after a given one
    //
    wxTreeItemId InsertItem( const wxTreeItemId& rParent
                            ,const wxTreeItemId& rIdPrevious
                            ,const wxString&     rsText
                            ,int                 nImage = -1
                            ,int                 nSelectedImage = -1
                            ,wxTreeItemData*     pData = NULL
                           );

    //
    // Insert a new item before the one with the given index
    //
    wxTreeItemId InsertItem( const wxTreeItemId& pParent
                            ,size_t              nIndex
                            ,const wxString&     rsText
                            ,int                 nImage = -1
                            ,int                 nSelectedImage = -1
                            ,wxTreeItemData*     pData = NULL
                           );

    //
    // Insert a new item in as the last child of the parent
    //
    wxTreeItemId AppendItem( const wxTreeItemId& rParent
                            ,const wxString&     rsText
                            ,int                 nImage = -1
                            ,int                 nSelectedImage = -1
                            ,wxTreeItemData*     pData = NULL
                           );

    //
    // Delete this item and associated data if any
    //
    void Delete(const wxTreeItemId& rItem);

    //
    // Delete all children (but don't delete the item itself)
    //
    void DeleteChildren(const wxTreeItemId& rItem);

    //
    // Delete all items from the tree
    //
    void DeleteAllItems(void);

    //
    // Expand this item
    //
    void Expand(const wxTreeItemId& rItem);

    //
    // Collapse the item without removing its children
    //
    void Collapse(const wxTreeItemId& rItem);

    //
    // Collapse the item and remove all children
    //
    void CollapseAndReset(const wxTreeItemId& rItem);

    //
    // Toggles the current state
    //
    void Toggle(const wxTreeItemId& rItem);

    //
    // Remove the selection from currently selected item (if any)
    //
    void Unselect(void);

    //
    // Unselect all items (only makes sense for multiple selection control)
    //
    void UnselectAll(void);

    //
    // Select this item
    //
    void SelectItem(const wxTreeItemId& rItem);

    //
    // Make sure this item is visible (expanding the parent item and/or
    // scrolling to this item if necessary)
    //
    void EnsureVisible(const wxTreeItemId& rItem);

    //
    // Scroll to this item (but don't expand its parent)
    //
    void ScrollTo(const wxTreeItemId& rItem);

    //
    // OS/2 does not use a separate edit field for editting text. Here for
    // interface compatibility, only.
    //
    wxTextCtrl* EditLabel( const wxTreeItemId& rItem
                          ,wxClassInfo*        pTextCtrlClass = CLASSINFO(wxTextCtrl)
                         );

    //
    // returns NULL for OS/2 in ALL cases
    //
    wxTextCtrl* GetEditControl(void) const {return (wxTextCtrl*)NULL;}

    //
    // End editing and accept or discard the changes to item label
    //
    void EndEditLabel( const wxTreeItemId& rItem
                      ,bool                bDiscardChanges = false
                     );

    //
    // Sorting
    // -------
    //

    //
    // This function is called to compare 2 items and should return -1, 0
    // or +1 if the first item is less than, equal to or greater than the
    // second one. The base class version performs alphabetic comparaison
    // of item labels (GetText)
    //
    virtual int OnCompareItems( const wxTreeItemId& rItem1
                               ,const wxTreeItemId& rItem2
                              );

    //
    // Sort the children of this item using OnCompareItems
    //
    void SortChildren(const wxTreeItemId& rItem);

    //
    // Helpers
    // -------
    //

    //
    // Determine to which item (if any) belongs the given point (the
    // coordinates specified are relative to the client area of tree ctrl)
    // and fill the flags parameter with a bitmask of wxTREE_HITTEST_xxx
    // constants.

    //
    // The first function is more portable (because easier to implement
    // on other platforms), but the second one returns some extra info.
    //
    wxTreeItemId HitTest(const wxPoint& rPoint)
        { int nDummy = 0; return HitTest(rPoint, nDummy); }
    wxTreeItemId HitTest( const wxPoint& rPoint
                         ,int&           rFlags
                        );

    //
    // Get the bounding rectangle of the item (or of its label only)
    //
    bool GetBoundingRect( const wxTreeItemId& rItem
                         ,wxRect&             rRect
                         ,bool                bTextOnly = false
                        ) const;

    //
    // Deprecated
    // ----------

#if WXWIN_COMPATIBILITY_2_4
    // These methods are deprecated and will be removed in future versions of
    // wxWidgets, they're here for compatibility only, don't use them in new
    // code (the comments indicate why these methods are now useless and how to
    // replace them)
    //

    //
    // Use Expand, Collapse, CollapseAndReset or Toggle
    //
    wxDEPRECATED( void ExpandItem( const wxTreeItemId& rItem
                                  ,int                 nAction
                                 ) );

    //
    // Use AddRoot, PrependItem or AppendItem
    //
    wxDEPRECATED( wxTreeItemId InsertItem( const wxTreeItemId& pParent
                                          ,const wxString&     rsText
                                          ,int                 nImage = -1
                                          ,int                 nSelImage = -1
                                          ,long                lInsertAfter = wxTREE_INSERT_LAST
                                         ) );

    //
    // Use Set/GetImageList and Set/GetStateImageList
    //
    wxDEPRECATED( wxImageList* GetImageList(int nVal) const );
    wxDEPRECATED( void SetImageList(wxImageList* pImageList, int nVal) );

    //
    // Use Set/GetItemImage directly
    //
    wxDEPRECATED( int GetItemSelectedImage(const wxTreeItemId& rItem) const );
    wxDEPRECATED( void SetItemSelectedImage(const wxTreeItemId& rItem, int nImage) );

    //
    // For this enumeration function you must pass in a "cookie" parameter
    // which is opaque for the application but is necessary for the library
    // to make these functions reentrant (i.e. allow more than one
    // enumeration on one and the same object simultaneously). Of course,
    // the "cookie" passed to GetFirstChild() and GetNextChild() should be
    // the same!
    //

    //
    // Get the first child of this item
    //
    wxDEPRECATED( wxTreeItemId GetFirstChild( const wxTreeItemId& rItem
                                             ,long&               rCookie
                                            ) const );

    //
    // Get the next child
    //
    wxDEPRECATED( wxTreeItemId GetNextChild( const wxTreeItemId& rItem
                                            ,long&               rCookie
                                           ) const );
#endif // WXWIN_COMPATIBILITY_2_4

    //
    // Implementation
    // --------------
    //

    virtual MRESULT OS2WindowProc( WXUINT   uMsg
                                  ,WXWPARAM wParam
                                  ,WXLPARAM lParam
                                 );
    virtual bool    OS2Command( WXUINT uParam
                               ,WXWORD wId
                              );
//    virtual bool    OMSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);

    //
    // Override some base class virtuals
    //
    virtual bool SetBackgroundColour(const wxColour& rColour);
    virtual bool SetForegroundColour(const wxColour& rColour);

    //
    // Get/set the check state for the item (only for wxTR_MULTIPLE)
    //
    bool IsItemChecked(const wxTreeItemId& rItem) const;
    void SetItemCheck( const wxTreeItemId& rItem
                      ,bool                bCheck = true
                     );

protected:
    //
    // SetImageList helper
    //
    void SetAnyImageList( wxImageList* pImageList
                         ,int          nWhich
                        );

    //
    // Refresh a single item
    //
    void RefreshItem(const wxTreeItemId& rItem);

    wxImageList*                    m_pImageListNormal; // images for tree elements
    wxImageList*                    m_pImageListState;  // special images for app defined states
    bool                            m_bOwnsImageListNormal;
    bool                            m_bOwnsImageListState;

private:

    //
    // The common part of all ctors
    //
    void Init(void);

    //
    // Helper functions
    //
    inline bool DoGetItem(wxTreeViewItem* pTvItem) const;
    inline void DoSetItem(wxTreeViewItem* pTvItem);

    inline void DoExpand( const wxTreeItemId& rItem
                         ,int                 nFlag
                        );
    wxTreeItemId DoInsertItem( const wxTreeItemId& pParent
                              ,wxTreeItemId        hInsertAfter
                              ,const wxString&     rsText
                              ,int                 nImage
                              ,int                 nSelectedImage
                              ,wxTreeItemData*     pData
                             );
    int  DoGetItemImageFromData( const wxTreeItemId& rItem
                                ,wxTreeItemIcon      vWhich
                               ) const;
    void DoSetItemImageFromData( const wxTreeItemId& rItem
                                ,int                 nImage
                                ,wxTreeItemIcon      vWhich
                               ) const;
    void DoSetItemImages( const wxTreeItemId& rItem
                         ,int                 nImage
                         ,int                 nImageSel
                        );
    void DeleteTextCtrl() { };

    //
    // support for additional item images which we implement using
    // wxTreeItemIndirectData technique - see the comments in msw/treectrl.cpp
    //
    void SetIndirectItemData( const wxTreeItemId&           rItem
                             ,class wxTreeItemIndirectData* pData
                            );
    bool HasIndirectData(const wxTreeItemId& rItem) const;
    bool IsDataIndirect(wxTreeItemData* pData) const
        { return pData && pData->GetId().m_pItem == 0; }

    //
    // The hash storing the items attributes (indexed by items ids)
    //
    wxMapTreeAttr                   m_vAttrs;

    //
    // true if the hash above is not empty
    //
    bool                            m_bHasAnyAttr;

    //
    // Used for dragging
    //
    wxDragImage*                    m_pDragImage;

    // Virtual root item, if wxTR_HIDE_ROOT is set.
//    void* m_pVirtualRoot;

    // the starting item for selection with Shift
//    WXHTREEITEM m_htSelStart;
//
    friend class wxTreeItemIndirectData;
    friend class wxTreeSortHelper;

    DECLARE_DYNAMIC_CLASS(wxTreeCtrl)
    DECLARE_NO_COPY_CLASS(wxTreeCtrl)
}; // end of CLASS wxTreeCtrl

#endif // wxUSE_TREECTRL

#endif
    // _WX_TREECTRL_H_
Commit	Line	Data
4fd899b6 DW	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: wx/os2/treectrl.h
	3	// Purpose: wxTreeCtrl class
	4	// Author: David Webster
	5	// Modified by:
	6	// Created: 01/23/03
	7	// RCS-ID: $Id$
	8	// Copyright: (c) David Webster
65571936	9	// Licence: wxWindows licence
4fd899b6 DW	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifndef _WX_TREECTRL_H_
	13	#define _WX_TREECTRL_H_
	14
	15	// ----------------------------------------------------------------------------
	16	// headers
	17	// ----------------------------------------------------------------------------
	18
4fd899b6 DW	19	#if wxUSE_TREECTRL
	20
	21	#include "wx/textctrl.h"
	22	#include "wx/dynarray.h"
	23	#include "wx/treebase.h"
258836fa	24	#include "wx/hashmap.h"
4fd899b6 DW	25
	26	// the type for "untyped" data
	27	typedef long wxDataType;
	28
	29	// fwd decl
	30	class WXDLLEXPORT wxImageList;
	31	class WXDLLEXPORT wxDragImage;
	32	struct WXDLLEXPORT wxTreeViewItem;
	33
	34	// a callback function used for sorting tree items, it should return -1 if the
	35	// first item precedes the second, +1 if the second precedes the first or 0 if
	36	// they're equivalent
	37	class wxTreeItemData;
	38
4fd899b6 DW	39	// flags for deprecated InsertItem() variant
	40	#define wxTREE_INSERT_FIRST 0xFFFF0001
	41	#define wxTREE_INSERT_LAST 0xFFFF0002
	42
258836fa SN	43	// hash storing attributes for our items
	44	WX_DECLARE_EXPORTED_VOIDPTR_HASH_MAP(wxTreeItemAttr *, wxMapTreeAttr);
	45
4fd899b6 DW	46	// ----------------------------------------------------------------------------
	47	// wxTreeCtrl
	48	// ----------------------------------------------------------------------------
	49	class WXDLLEXPORT wxTreeCtrl : public wxControl
	50	{
	51	public:
	52	// creation
	53	// --------
	54	wxTreeCtrl() { Init(); }
	55
	56	wxTreeCtrl( wxWindow* pParent
e2effeb9	57	,wxWindowID vId = wxID_ANY
4fd899b6 DW	58	,const wxPoint& rPos = wxDefaultPosition
	59	,const wxSize& rSize = wxDefaultSize
	60	,long lStyle = wxTR_HAS_BUTTONS \| wxTR_LINES_AT_ROOT
	61	,const wxValidator& rValidator = wxDefaultValidator
	62	,const wxString& rsName = wxTreeCtrlNameStr
	63	)
	64	{
	65	Create( pParent
	66	,vId
	67	,rPos
	68	,rSize
	69	,lStyle
	70	,rValidator
	71	,rsName
	72	);
	73	}
	74	virtual ~wxTreeCtrl();
	75
	76	bool Create( wxWindow* pParent
e2effeb9	77	,wxWindowID vId = wxID_ANY
4fd899b6 DW	78	,const wxPoint& rPos = wxDefaultPosition
	79	,const wxSize& rSize = wxDefaultSize
	80	,long lStyle = wxTR_HAS_BUTTONS \| wxTR_LINES_AT_ROOT
	81	,const wxValidator& rValidator = wxDefaultValidator
	82	,const wxString& rsName = wxTreeCtrlNameStr
	83	);
	84
	85	//
	86	// Accessors
	87	// ---------
	88	//
	89
	90	//
	91	// Get the total number of items in the control
	92	//
027d45e8	93	virtual unsigned int GetCount(void) const;
4fd899b6 DW	94
	95	//
	96	// Indent is the number of pixels the children are indented relative to
	97	// the parents position. SetIndent() also redraws the control
	98	// immediately.
	99	//
	100	unsigned int GetIndent(void) const;
	101	void SetIndent(unsigned int uIndent);
	102
	103	//
	104	// Spacing is the number of pixels between the start and the Text
	105	//
	106	unsigned int GetSpacing(void) const { return 18; } // return wxGTK default
	107	void SetSpacing(unsigned int uSpacing) { }
	108
	109	//
	110	// Image list: these functions allow to associate an image list with
	111	// the control and retrieve it. Note that the control does _not_ delete
	112	// the associated image list when it's deleted in order to allow image
	113	// lists to be shared between different controls.
	114	//
	115	// OS/2 doesn't really use imagelists as MSW does, but since the MSW
	116	// control is the basis for this one, until I decide how to get rid of
	117	// the need for them they are here for now.
	118	//
	119	wxImageList* GetImageList(void) const;
	120	wxImageList* GetStateImageList(void) const;
	121
	122	void AssignImageList(wxImageList* pImageList);
	123	void AssignStateImageList(wxImageList* pImageList);
	124	void SetImageList(wxImageList* pImageList);
	125	void SetStateImageList(wxImageList* pImageList);
	126
	127	//
	128	// Functions to work with tree ctrl items. Unfortunately, they can _not_ be
	129	// member functions of wxTreeItem because they must know the tree the item
	130	// belongs to for Windows implementation and storing the pointer to
	131	// wxTreeCtrl in each wxTreeItem is just too much waste.
	132
	133	//
	134	// Item's label
	135	//
	136	wxString GetItemText(const wxTreeItemId& rItem) const;
	137	void SetItemText( const wxTreeItemId& rItem
	138	,const wxString& rsText
	139	);
	140
	141	//
	142	// One of the images associated with the item (normal by default)
	143	//
	144	int GetItemImage( const wxTreeItemId& rItem
	145	,wxTreeItemIcon vWhich = wxTreeItemIcon_Normal
	146	) const;
	147	void SetItemImage( const wxTreeItemId& rItem
	148	,int nImage
	149	,wxTreeItemIcon vWhich = wxTreeItemIcon_Normal
	150	);
	151
	152	//
	153	// Data associated with the item
	154	//
	155	wxTreeItemData* GetItemData(const wxTreeItemId& rItem) const;
	156	void SetItemData( const wxTreeItemId& rItem
	157	,wxTreeItemData* pData
158	);
159
160	//
161	// Item's text colour
162	//
163	wxColour GetItemTextColour(const wxTreeItemId& rItem) const;
164	void SetItemTextColour( const wxTreeItemId& rItem
165	,const wxColour& rColor
166	);
167
168	//
169	// Item's background colour
170	//
171	wxColour GetItemBackgroundColour(const wxTreeItemId& rItem) const;
172	void SetItemBackgroundColour( const wxTreeItemId& rItem
173	,const wxColour& rColour
174	);
175
176	//
177	// Item's font
178	//
179	wxFont GetItemFont(const wxTreeItemId& rItem) const;
180	void SetItemFont( const wxTreeItemId& rItem
181	,const wxFont& rFont
182	);
183
184	//
185	// Force appearance of [+] button near the item. This is useful to
186	// allow the user to expand the items which don't have any children now
187	// - but instead add them only when needed, thus minimizing memory
188	// usage and loading time.
189	//
190	void SetItemHasChildren( const wxTreeItemId& rItem
1729813a	191	,bool bHas = true
4fd899b6 DW	192	);
	193
	194	//
	195	// The item will be shown in bold
	196	//
	197	void SetItemBold( const wxTreeItemId& rItem
1729813a	198	,bool bBold = true
4fd899b6 DW	199	);
	200
	201	//
	202	// The item will be shown with a drop highlight
	203	//
	204	void SetItemDropHighlight( const wxTreeItemId& rItem
1729813a	205	,bool bHighlight = true
4fd899b6 DW	206	);
	207
	208	//
	209	// Item status inquiries
	210	// ---------------------
	211	//
	212
	213	//
	214	// Is the item visible (it might be outside the view or not expanded)?
	215	//
	216	bool IsVisible(const wxTreeItemId& rItem) const;
	217
	218	//
	219	// Does the item has any children?
	220	//
	221	bool ItemHasChildren(const wxTreeItemId& rItem) const;
	222
	223	//
	224	// Is the item expanded (only makes sense if HasChildren())?
	225	//
	226	bool IsExpanded(const wxTreeItemId& rItem) const;
	227
	228	//
	229	// Is this item currently selected (the same as has focus)?
	230	//
	231	bool IsSelected(const wxTreeItemId& rItem) const;
	232
	233	//
	234	// Is item text in bold font?
	235	//
	236	bool IsBold(const wxTreeItemId& rItem) const;
	237
	238	//
	239	// Number of children
	240	// ------------------
	241	//
	242
	243	//
1729813a	244	// If 'bRecursively' is false, only immediate children count, otherwise
4fd899b6 DW	245	// the returned number is the number of all items in this branch
	246	//
	247	size_t GetChildrenCount( const wxTreeItemId& rItem
1729813a	248	,bool bRecursively = true
4fd899b6 DW	249	) const;
	250
	251	//
	252	// Navigation
	253	// ----------
	254	//
	255
	256	//
	257	// Get the root tree item
	258	//
	259	wxTreeItemId GetRootItem(void) const;
	260
	261	//
	262	// Get the item currently selected (may return NULL if no selection)
	263	//
	264	wxTreeItemId GetSelection(void) const;
	265
	266	//
	267	// Get the items currently selected, return the number of such item
	268	//
	269	size_t GetSelections(wxArrayTreeItemIds& rSelections) const;
	270
	271	//
	272	// Get the parent of this item (may return NULL if root)
	273	//
	274	wxTreeItemId GetItemParent(const wxTreeItemId& rItem) const;
	275
258836fa SN	276	// for this enumeration function you must pass in a "cookie" parameter
	277	// which is opaque for the application but is necessary for the library
	278	// to make these functions reentrant (i.e. allow more than one
	279	// enumeration on one and the same object simultaneously). Of course,
	280	// the "cookie" passed to GetFirstChild() and GetNextChild() should be
	281	// the same!
4fd899b6	282
258836fa SN	283	// get the first child of this item
	284	wxTreeItemId GetFirstChild(const wxTreeItemId& item,
	285	wxTreeItemIdValue& cookie) const;
	286	// get the next child
	287	wxTreeItemId GetNextChild(const wxTreeItemId& item,
	288	wxTreeItemIdValue& cookie) const;
4fd899b6 DW	289
	290	//
	291	// Get the last child of this item - this method doesn't use cookies
	292	//
	293	wxTreeItemId GetLastChild(const wxTreeItemId& rItem) const;
	294
	295	//
	296	// Get the next sibling of this item
	297	//
	298	wxTreeItemId GetNextSibling(const wxTreeItemId& rItem) const;
	299
	300	//
	301	// Get the previous sibling
	302	//
	303	wxTreeItemId GetPrevSibling(const wxTreeItemId& rItem) const;
	304
	305	//
	306	// Get first visible item
	307	//
	308	wxTreeItemId GetFirstVisibleItem(void) const;
	309
	310	//
	311	// Get the next visible item: item must be visible itself!
	312	// see IsVisible() and wxTreeCtrl::GetFirstVisibleItem()
	313	//
	314	wxTreeItemId GetNextVisible(const wxTreeItemId& rItem) const;
	315
	316	//
	317	// Get the previous visible item: item must be visible itself!
	318	//
	319	wxTreeItemId GetPrevVisible(const wxTreeItemId& rItem) const;
	320
	321	//
	322	// Operations
	323	// ----------
	324	//
	325
	326	//
	327	// Add the root node to the tree
	328	//
	329	wxTreeItemId AddRoot( const wxString& rsText
	330	,int nImage = -1
	331	,int nSelectedImage = -1
	332	,wxTreeItemData* pData = NULL
	333	);
	334
	335	//
	336	// Insert a new item in as the first child of the parent
	337	//
	338	wxTreeItemId PrependItem( const wxTreeItemId& rParent
	339	,const wxString& rsText
	340	,int nImage = -1
	341	,int nSelectedImage = -1
	342	,wxTreeItemData* pData = NULL
	343	);
	344
	345	//
	346	// Insert a new item after a given one
	347	//
	348	wxTreeItemId InsertItem( const wxTreeItemId& rParent
	349	,const wxTreeItemId& rIdPrevious
	350	,const wxString& rsText
	351	,int nImage = -1
	352	,int nSelectedImage = -1
353	,wxTreeItemData* pData = NULL
354	);
355
356	//
357	// Insert a new item before the one with the given index
358	//
359	wxTreeItemId InsertItem( const wxTreeItemId& pParent
360	,size_t nIndex
361	,const wxString& rsText
362	,int nImage = -1
363	,int nSelectedImage = -1
364	,wxTreeItemData* pData = NULL
365	);
366
367	//
368	// Insert a new item in as the last child of the parent
369	//
370	wxTreeItemId AppendItem( const wxTreeItemId& rParent
371	,const wxString& rsText
372	,int nImage = -1
373	,int nSelectedImage = -1
374	,wxTreeItemData* pData = NULL
375	);
376
377	//
378	// Delete this item and associated data if any
379	//
380	void Delete(const wxTreeItemId& rItem);
381
382	//
383	// Delete all children (but don't delete the item itself)
384	//
385	void DeleteChildren(const wxTreeItemId& rItem);
386
387	//
388	// Delete all items from the tree
389	//
390	void DeleteAllItems(void);
391
392	//
393	// Expand this item
394	//
395	void Expand(const wxTreeItemId& rItem);
396
397	//
398	// Collapse the item without removing its children
399	//
400	void Collapse(const wxTreeItemId& rItem);
401
402	//
403	// Collapse the item and remove all children
404	//
405	void CollapseAndReset(const wxTreeItemId& rItem);
406
407	//
408	// Toggles the current state
409	//
410	void Toggle(const wxTreeItemId& rItem);
411
412	//
413	// Remove the selection from currently selected item (if any)
414	//
415	void Unselect(void);
416
417	//
418	// Unselect all items (only makes sense for multiple selection control)
419	//
420	void UnselectAll(void);
421
422	//
423	// Select this item
424	//
425	void SelectItem(const wxTreeItemId& rItem);
426
427	//
428	// Make sure this item is visible (expanding the parent item and/or
429	// scrolling to this item if necessary)
430	//
431	void EnsureVisible(const wxTreeItemId& rItem);
432
433	//
434	// Scroll to this item (but don't expand its parent)
435	//
436	void ScrollTo(const wxTreeItemId& rItem);
437
438	//
439	// OS/2 does not use a separate edit field for editting text. Here for
440	// interface compatibility, only.
441	//
442	wxTextCtrl* EditLabel( const wxTreeItemId& rItem
443	,wxClassInfo* pTextCtrlClass = CLASSINFO(wxTextCtrl)
444	);
445
446	//
447	// returns NULL for OS/2 in ALL cases
448	//
449	wxTextCtrl* GetEditControl(void) const {return (wxTextCtrl*)NULL;}
450
451	//
452	// End editing and accept or discard the changes to item label
453	//
454	void EndEditLabel( const wxTreeItemId& rItem
1729813a	455	,bool bDiscardChanges = false
4fd899b6 DW	456	);
	457
	458	//
	459	// Sorting
	460	// -------
	461	//
	462
	463	//
	464	// This function is called to compare 2 items and should return -1, 0
	465	// or +1 if the first item is less than, equal to or greater than the
	466	// second one. The base class version performs alphabetic comparaison
	467	// of item labels (GetText)
	468	//
	469	virtual int OnCompareItems( const wxTreeItemId& rItem1
	470	,const wxTreeItemId& rItem2
	471	);
	472
	473	//
	474	// Sort the children of this item using OnCompareItems
	475	//
	476	void SortChildren(const wxTreeItemId& rItem);
	477
	478	//
	479	// Helpers
	480	// -------
	481	//
	482
	483	//
	484	// Determine to which item (if any) belongs the given point (the
	485	// coordinates specified are relative to the client area of tree ctrl)
	486	// and fill the flags parameter with a bitmask of wxTREE_HITTEST_xxx
	487	// constants.
	488
	489	//
	490	// The first function is more portable (because easier to implement
	491	// on other platforms), but the second one returns some extra info.
	492	//
	493	wxTreeItemId HitTest(const wxPoint& rPoint)
	494	{ int nDummy = 0; return HitTest(rPoint, nDummy); }
	495	wxTreeItemId HitTest( const wxPoint& rPoint
	496	,int& rFlags
	497	);
	498
	499	//
	500	// Get the bounding rectangle of the item (or of its label only)
	501	//
	502	bool GetBoundingRect( const wxTreeItemId& rItem
	503	,wxRect& rRect
1729813a	504	,bool bTextOnly = false
4fd899b6 DW	505	) const;
	506
	507	//
	508	// Deprecated
	509	// ----------
258836fa SN	510
258836fa SN	511	#if WXWIN_COMPATIBILITY_2_4
4fd899b6	512	// These methods are deprecated and will be removed in future versions of
77ffb593	513	// wxWidgets, they're here for compatibility only, don't use them in new
4fd899b6 DW	514	// code (the comments indicate why these methods are now useless and how to
	515	// replace them)
	516	//
	517
	518	//
	519	// Use Expand, Collapse, CollapseAndReset or Toggle
	520	//
258836fa SN	521	wxDEPRECATED( void ExpandItem( const wxTreeItemId& rItem
	522	,int nAction
	523	) );
4fd899b6 DW	524
	525	//
	526	// Use AddRoot, PrependItem or AppendItem
	527	//
258836fa SN	528	wxDEPRECATED( wxTreeItemId InsertItem( const wxTreeItemId& pParent
	529	,const wxString& rsText
	530	,int nImage = -1
	531	,int nSelImage = -1
	532	,long lInsertAfter = wxTREE_INSERT_LAST
	533	) );
4fd899b6 DW	534
	535	//
	536	// Use Set/GetImageList and Set/GetStateImageList
	537	//
a6fb8636 WS	538	wxDEPRECATED( wxImageList* GetImageList(int nVal) const );
a6fb8636 WS	539	wxDEPRECATED( void SetImageList(wxImageList* pImageList, int nVal) );
4fd899b6 DW	540
	541	//
	542	// Use Set/GetItemImage directly
	543	//
a6fb8636 WS	544	wxDEPRECATED( int GetItemSelectedImage(const wxTreeItemId& rItem) const );
	545	wxDEPRECATED( void SetItemSelectedImage(const wxTreeItemId& rItem, int nImage) );
	546
258836fa SN	547	//
	548	// For this enumeration function you must pass in a "cookie" parameter
	549	// which is opaque for the application but is necessary for the library
	550	// to make these functions reentrant (i.e. allow more than one
	551	// enumeration on one and the same object simultaneously). Of course,
	552	// the "cookie" passed to GetFirstChild() and GetNextChild() should be
	553	// the same!
	554	//
	555
	556	//
	557	// Get the first child of this item
	558	//
	559	wxDEPRECATED( wxTreeItemId GetFirstChild( const wxTreeItemId& rItem
	560	,long& rCookie
	561	) const );
	562
	563	//
	564	// Get the next child
	565	//
	566	wxDEPRECATED( wxTreeItemId GetNextChild( const wxTreeItemId& rItem
	567	,long& rCookie
	568	) const );
	569	#endif // WXWIN_COMPATIBILITY_2_4
4fd899b6 DW	570
	571	//
	572	// Implementation
	573	// --------------
	574	//
	575
	576	virtual MRESULT OS2WindowProc( WXUINT uMsg
	577	,WXWPARAM wParam
	578	,WXLPARAM lParam
	579	);
	580	virtual bool OS2Command( WXUINT uParam
	581	,WXWORD wId
	582	);
	583	// virtual bool OMSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
	584
	585	//
	586	// Override some base class virtuals
	587	//
	588	virtual bool SetBackgroundColour(const wxColour& rColour);
	589	virtual bool SetForegroundColour(const wxColour& rColour);
	590
	591	//
	592	// Get/set the check state for the item (only for wxTR_MULTIPLE)
	593	//
	594	bool IsItemChecked(const wxTreeItemId& rItem) const;
	595	void SetItemCheck( const wxTreeItemId& rItem
1729813a	596	,bool bCheck = true
4fd899b6 DW	597	);
	598
	599	protected:
	600	//
	601	// SetImageList helper
	602	//
	603	void SetAnyImageList( wxImageList* pImageList
	604	,int nWhich
	605	);
	606
	607	//
	608	// Refresh a single item
	609	//
	610	void RefreshItem(const wxTreeItemId& rItem);
	611
	612	wxImageList* m_pImageListNormal; // images for tree elements
	613	wxImageList* m_pImageListState; // special images for app defined states
	614	bool m_bOwnsImageListNormal;
	615	bool m_bOwnsImageListState;
	616
	617	private:
	618
	619	//
	620	// The common part of all ctors
	621	//
	622	void Init(void);
	623
	624	//
	625	// Helper functions
	626	//
	627	inline bool DoGetItem(wxTreeViewItem* pTvItem) const;
	628	inline void DoSetItem(wxTreeViewItem* pTvItem);
	629
	630	inline void DoExpand( const wxTreeItemId& rItem
	631	,int nFlag
	632	);
	633	wxTreeItemId DoInsertItem( const wxTreeItemId& pParent
	634	,wxTreeItemId hInsertAfter
	635	,const wxString& rsText
	636	,int nImage
	637	,int nSelectedImage
	638	,wxTreeItemData* pData
	639	);
	640	int DoGetItemImageFromData( const wxTreeItemId& rItem
	641	,wxTreeItemIcon vWhich
	642	) const;
	643	void DoSetItemImageFromData( const wxTreeItemId& rItem
	644	,int nImage
	645	,wxTreeItemIcon vWhich
	646	) const;
	647	void DoSetItemImages( const wxTreeItemId& rItem
	648	,int nImage
	649	,int nImageSel
	650	);
	651	void DeleteTextCtrl() { };
	652
	653	//
	654	// support for additional item images which we implement using
	655	// wxTreeItemIndirectData technique - see the comments in msw/treectrl.cpp
	656	//
	657	void SetIndirectItemData( const wxTreeItemId& rItem
	658	,class wxTreeItemIndirectData* pData
	659	);
	660	bool HasIndirectData(const wxTreeItemId& rItem) const;
661	bool IsDataIndirect(wxTreeItemData* pData) const
662	{ return pData && pData->GetId().m_pItem == 0; }
663
664	//
665	// The hash storing the items attributes (indexed by items ids)
666	//
258836fa	667	wxMapTreeAttr m_vAttrs;
4fd899b6 DW	668
4fd899b6 DW	669	//
1729813a	670	// true if the hash above is not empty
4fd899b6 DW	671	//
	672	bool m_bHasAnyAttr;
	673
	674	//
	675	// Used for dragging
	676	//
	677	wxDragImage* m_pDragImage;
	678
	679	// Virtual root item, if wxTR_HIDE_ROOT is set.
	680	// void* m_pVirtualRoot;
	681
	682	// the starting item for selection with Shift
	683	// WXHTREEITEM m_htSelStart;
	684	//
	685	friend class wxTreeItemIndirectData;
	686	friend class wxTreeSortHelper;
	687
	688	DECLARE_DYNAMIC_CLASS(wxTreeCtrl)
	689	DECLARE_NO_COPY_CLASS(wxTreeCtrl)
	690	}; // end of CLASS wxTreeCtrl
	691
	692	#endif // wxUSE_TREECTRL
	693
	694	#endif
	695	// _WX_TREECTRL_H_