X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/edaa81ae5d6d5fbcc353911319bdc6dc7ed685ea..306dfc2b3d49ca45445bdfb2164fe1eea45ab321:/include/wx/generic/treectrl.h diff --git a/include/wx/generic/treectrl.h b/include/wx/generic/treectrl.h index 8e9af20297..014a048ce5 100644 --- a/include/wx/generic/treectrl.h +++ b/include/wx/generic/treectrl.h @@ -1,351 +1,489 @@ -/* - * Author: Robert Roebling - * - * Copyright: (C) 1997,1998 Robert Roebling - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the wxWindows Licence, which - * you have received with this library (see Licence.htm). - * - */ - -#ifndef __GTKTREECTRLH_G__ -#define __GTKTREECTRLH_G__ +///////////////////////////////////////////////////////////////////////////// +// Name: treectrl.h +// Purpose: wxTreeCtrl class +// Author: Robert Roebling +// Modified by: +// Created: 01/02/97 +// RCS-ID: $Id$ +// Copyright: (c) 1997,1998 Robert Roebling +// Licence: wxWindows license +///////////////////////////////////////////////////////////////////////////// + +#ifndef _GENERIC_TREECTRL_H_ +#define _GENERIC_TREECTRL_H_ #ifdef __GNUG__ -#pragma interface "treectrl.h" + #pragma interface "treectrl.h" +#endif + +#ifdef __WXMSW__ +WXDLLEXPORT_DATA(extern const char*) wxTreeCtrlNameStr; +#else +#define wxTreeCtrlNameStr "wxTreeCtrl" #endif #include "wx/defs.h" #include "wx/string.h" -#include "wx/list.h" -#include "wx/control.h" +#include "wx/object.h" #include "wx/event.h" -#include "wx/imaglist.h" #include "wx/scrolwin.h" -#include "wx/dcclient.h" - -//----------------------------------------------------------------------------- -// classes -//----------------------------------------------------------------------------- +#include "wx/textctrl.h" +#include "wx/pen.h" -class wxTreeItem; -class wxTreeEvent; +// ----------------------------------------------------------------------------- +// constants +// ----------------------------------------------------------------------------- + +// values for the `flags' parameter of wxTreeCtrl::HitTest() which determine +// where exactly the specified point is situated: +static const int wxTREE_HITTEST_NOWHERE = 0x0004; + // on the bitmap associated with an item. +static const int wxTREE_HITTEST_ONITEMICON = 0x0020; + // on the label (string) associated with an item. +static const int wxTREE_HITTEST_ONITEMLABEL = 0x0080; + // anywhere on the item +static const int wxTREE_HITTEST_ONITEM = wxTREE_HITTEST_ONITEMICON | + wxTREE_HITTEST_ONITEMLABEL; + +// ----------------------------------------------------------------------------- +// forward declaration +// ----------------------------------------------------------------------------- +class wxImageList; class wxGenericTreeItem; -class wxTreeCtrl; -class wxImageList; +class wxTreeItemData; -//----------------------------------------------------------------------------- -// constants -//----------------------------------------------------------------------------- - -// WXDLLEXPORT 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. -}; +// ----------------------------------------------------------------------------- +// wxTreeItemId - unique identifier of a tree element +// ----------------------------------------------------------------------------- -// Flags for ExpandItem -enum { - wxTREE_EXPAND_EXPAND, - wxTREE_EXPAND_COLLAPSE, - wxTREE_EXPAND_COLLAPSE_RESET, - wxTREE_EXPAND_TOGGLE -}; +class WXDLLEXPORT wxTreeItemId +{ +friend class wxTreeCtrl; +friend class wxTreeEvent; +public: + // ctors + // 0 is invalid value for HTREEITEM + wxTreeItemId() { m_pItem = 0; } + + // default copy ctor/assignment operator are ok for us + + // accessors + // is this a valid tree item? + bool IsOk() const { return m_pItem != 0; } + + // deprecated: only for compatibility + wxTreeItemId(long itemId) { m_pItem = (wxGenericTreeItem *)itemId; } + operator long() const { return (long)m_pItem; } + +//protected: // not for gcc + // for wxTreeCtrl usage only + wxTreeItemId(wxGenericTreeItem *pItem) { m_pItem = pItem; } -// Flags for InsertItem -enum { - wxTREE_INSERT_LAST = -1, - wxTREE_INSERT_FIRST = -2, - wxTREE_INSERT_SORT = -3 + wxGenericTreeItem *m_pItem; }; -/* defined in "wx/event.h" - 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_SEL_CHANGED, - wxEVT_COMMAND_TREE_SEL_CHANGING, - wxEVT_COMMAND_TREE_KEY_DOWN -*/ - -//----------------------------------------------------------------------------- -// wxTreeItem -//----------------------------------------------------------------------------- - -class WXDLLEXPORT wxTreeItem: public wxObject +// ---------------------------------------------------------------------------- +// wxTreeItemData is some (arbitrary) user class associated with some item. +// +// Because the objects of this class are deleted by the tree, they should +// always be allocated on the heap! +// ---------------------------------------------------------------------------- +class WXDLLEXPORT wxTreeItemData: public wxClientData { +friend class wxTreeCtrl; 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 GetState(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 SetSelectedImage(int selImage) { m_selectedImage = selImage; } - inline void SetChildren(int children) { m_children = children; } - inline void SetData(long data) { m_data = data; } - - DECLARE_DYNAMIC_CLASS(wxTreeItem) -}; + // creation/destruction + // -------------------- + // default ctor + wxTreeItemData() { } + + // default copy ctor/assignment operator are ok -//----------------------------------------------------------------------------- -// wxTreeEvent -//----------------------------------------------------------------------------- + // accessor: get the item associated with us + const wxTreeItemId& GetId() const { return m_pItem; } + void SetId(const wxTreeItemId& id) { m_pItem = id; } + +protected: + wxTreeItemId m_pItem; +}; -class WXDLLEXPORT wxTreeEvent: public wxCommandEvent +// ----------------------------------------------------------------------------- +// wxTreeEvent - the event generated by the tree control +// ----------------------------------------------------------------------------- +class WXDLLEXPORT wxTreeEvent : public wxNotifyEvent { - DECLARE_DYNAMIC_CLASS(wxTreeEvent) +friend class wxTreeCtrl; +public: + wxTreeEvent(wxEventType commandType = wxEVT_NULL, int id = 0); + + // accessors + // get the item on which the operation was performed or the newly + // selected item for wxEVT_COMMAND_TREE_SEL_CHANGED/ING events + wxTreeItemId GetItem() const { return m_item; } + + // for wxEVT_COMMAND_TREE_SEL_CHANGED/ING events, get the previously + // selected item + wxTreeItemId GetOldItem() const { return m_itemOld; } + + // the point where the mouse was when the drag operation started (for + // wxEVT_COMMAND_TREE_BEGIN_(R)DRAG events only) + wxPoint GetPoint() const { return m_pointDrag; } + + // keyboard code (for wxEVT_COMMAND_TREE_KEY_DOWN only) + int GetCode() const { return m_code; } - public: - wxTreeEvent(wxEventType commandType = wxEVT_NULL, int id = 0); + // set return code for wxEVT_COMMAND_TREE_ITEM_{EXPAND|COLLAPS}ING events + // call this to forbid the change in item status + void Veto() { m_code = TRUE; } - int m_code; - wxTreeItem m_item; - long m_oldItem; - wxPoint m_pointDrag; + // for implementation usage only + bool WasVetoed() const { return m_code; } - inline long GetOldItem() const { return m_oldItem; } - inline wxTreeItem& GetItem() const { return (wxTreeItem&) m_item; } - inline wxPoint GetPoint() const { return m_pointDrag; } - inline void SetCode(int code) { m_code = code; } - inline int GetCode() const { return m_code; } +private: + // @@ we could save some space by using union here + int m_code; + wxTreeItemId m_item, + m_itemOld; + wxPoint m_pointDrag; + + DECLARE_DYNAMIC_CLASS(wxTreeEvent) }; typedef void (wxEvtHandler::*wxTreeEventFunction)(wxTreeEvent&); +// ---------------------------------------------------------------------------- +// macros for handling tree control events +// ---------------------------------------------------------------------------- + +// GetItem() returns the item being dragged, GetPoint() the mouse coords #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 }, + +// GetItem() returns the itme whose label is being edited #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 }, + +// provide/update information about GetItem() item #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 }, + +// GetItem() is the item being expanded/collapsed, the "ING" versions can use #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, (wxObject *) NULL }, -#define EVT_TREE_SEL_CHANGED(id, fn) { wxEVT_COMMAND_TREE_SEL_CHANGED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL }, -#define EVT_TREE_SEL_CHANGING(id, fn) { wxEVT_COMMAND_TREE_SEL_CHANGING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL }, -#define EVT_TREE_KEY_DOWN(id, fn) { wxEVT_COMMAND_TREE_KEY_DOWN, 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 }, -//----------------------------------------------------------------------------- -// wxGenericTreeItem -//----------------------------------------------------------------------------- +// GetOldItem() is the item which had the selection previously, GetItem() is +// the item which acquires selection +#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 }, -class WXDLLEXPORT wxGenericTreeItem: public wxTreeItem -{ - DECLARE_DYNAMIC_CLASS(wxGenericTreeItem) - - public: - bool m_hasChildren, - m_isCollapsed; - - int m_x,m_y; - int m_height,m_width; - int m_xCross,m_yCross; - int m_level; - wxList m_children; - wxGenericTreeItem *m_parent; - bool m_hasHilight; - - wxGenericTreeItem() {}; - wxGenericTreeItem( wxGenericTreeItem *parent ); - wxGenericTreeItem( wxGenericTreeItem *parent, const wxTreeItem& item, wxDC *dc ); - void SetItem( const wxTreeItem &item, wxDC *dc ); - void SetText( const wxString &text, wxDC *dc ); - void Reset(); - void GetItem( wxTreeItem &item ) const; - void AddChild( const wxTreeItem &item ); - bool HasChildren(); - bool HasPlus(); - int NumberOfVisibleDescendents(); - int NumberOfVisibleChildren(); - wxGenericTreeItem *FindItem( long itemId ) const; - void AddChild( wxGenericTreeItem *child ); - void SetCross( int x, int y ); - void GetSize( int &x, int &y ); - long HitTest( const wxPoint& point, int &flags ); - void PrepareEvent( wxTreeEvent &event ); - void SendKeyDown( wxWindow *target ); - void SendSelected( wxWindow *target ); - void SendDelete( wxWindow *target ); - void SendExpand( wxWindow *target ); - void SendCollapse( wxWindow *target ); - void SetHilight( bool set = TRUE ); - bool HasHilight(); - bool IsExpanded() const { return !m_isCollapsed; } -}; +// GetCode() returns the key code +// NB: this is the only message for which GetItem() is invalid (you may get the +// item from GetSelection()) +#define EVT_TREE_KEY_DOWN(id, fn) { wxEVT_COMMAND_TREE_KEY_DOWN, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, -//----------------------------------------------------------------------------- -// wxTreeCtrl -//----------------------------------------------------------------------------- +// GetItem() returns the item being deleted, the associated data (if any) will +// be deleted just after the return of this event handler (if any) +#define EVT_TREE_DELETE_ITEM(id, fn) { wxEVT_COMMAND_TREE_DELETE_ITEM, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL }, -class wxTreeCtrl: public wxScrolledWindow +// GetItem() returns the item that was activated (double click, enter, space) +#define EVT_TREE_ITEM_ACTIVATED(id, fn) { wxEVT_COMMAND_TREE_ITEM_ACTIVATED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, + +// ----------------------------------------------------------------------------- +// wxTreeCtrl - the tree control +// ----------------------------------------------------------------------------- + +class WXDLLEXPORT wxTreeCtrl : public wxScrolledWindow { public: - wxTreeCtrl(); - wxTreeCtrl(wxWindow *parent, const wxWindowID id = -1, - const wxPoint& pos = wxDefaultPosition, - const wxSize& size = wxDefaultSize, - long style = wxTR_HAS_BUTTONS, - const wxString& name = "wxTreeCtrl" ); - ~wxTreeCtrl(); - bool Create(wxWindow *parent, const wxWindowID id = -1, - const wxPoint& pos = wxDefaultPosition, - const wxSize& size = wxDefaultSize, - long style = wxTR_HAS_BUTTONS, - const wxString& name = "wxTreeCtrl"); - - int GetCount() const; - long InsertItem( long parent, const wxString& label, int image = -1, - int selImage = -1, long insertAfter = wxTREE_INSERT_LAST ); - long InsertItem( long parent, wxTreeItem &info, - long insertAfter = wxTREE_INSERT_LAST ); - void DeleteItem( long item ); - void DeleteChildren( long item ); - bool DeleteAllItems(); - 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); } - bool ExpandItem( long item, int action ); - - // is the item expanded now? - bool IsItemExpanded(long item) - { - wxGenericTreeItem *pItem = FindItem(item); - return pItem && (pItem->GetState() & wxTREE_STATE_EXPANDED); - } - - bool GetItem( wxTreeItem &info ) const; - long GetItemData( long item ) const; - wxString GetItemText( long item ) const; - int GetItemImage(long item) const; - long GetParent( long item ) const; - long GetRootItem() const; - long GetChild(long item) const; - long GetNextItem(long item, int code) const; - long GetSelection() const; - bool SelectItem( long item ); - bool ItemHasChildren( long item ) const; - void SetIndent( int indent ); - int GetIndent() const; - bool SetItem( wxTreeItem &info ); - bool SetItemData( long item, long data ); - bool SetItemText( long item, const wxString &text ); - void SetItemImage(long item, int image, int imageSel) const; - long HitTest( const wxPoint& point, int &flags ); - - int GetItemState(long item, long stateMask) const; - bool SetItemState(long item, long state, long stateMask); - - void AdjustMyScrollbars(); - void PaintLevel( wxGenericTreeItem *item, wxPaintDC &dc, int level, int &y ); - void OnPaint( const wxPaintEvent &event ); - void OnSetFocus( const wxFocusEvent &event ); - void OnKillFocus( const wxFocusEvent &event ); - void OnChar( wxKeyEvent &event ); - void OnMouse( const wxMouseEvent &event ); - - wxImageList *GetImageList(int which = wxIMAGE_LIST_NORMAL) const; - void SetImageList(wxImageList *imageList, int which = wxIMAGE_LIST_NORMAL); + // creation + // -------- + wxTreeCtrl() { Init(); } + + 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 = wxTreeCtrlNameStr) + { + Create(parent, id, pos, size, style, validator, name); + } + + virtual ~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 = wxTreeCtrlNameStr); + + // accessors + // --------- + + // get the total number of items in the control + size_t GetCount() 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() const { return m_indent; } + void SetIndent(unsigned int indent); + + // 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. + // + // The normal image list is for the icons which correspond to the + // normal tree item state (whether it is selected or not). + // Additionally, the application might choose to show a state icon + // which corresponds to an app-defined item state (for example, + // checked/unchecked) which are taken from the state image list. + wxImageList *GetImageList() const; + wxImageList *GetStateImageList() const; + + void SetImageList(wxImageList *imageList); + void SetStateImageList(wxImageList *imageList); + + // Functions to work with tree ctrl items. + + // accessors + // --------- + + // retrieve items label + wxString GetItemText(const wxTreeItemId& item) const; + // get the normal item image + int GetItemImage(const wxTreeItemId& item) const; + // get the selected item image + int GetItemSelectedImage(const wxTreeItemId& item) const; + // get the data associated with the item + wxTreeItemData *GetItemData(const wxTreeItemId& item) const; + + // modifiers + // --------- + + // set items label + void SetItemText(const wxTreeItemId& item, const wxString& text); + // set the normal item image + void SetItemImage(const wxTreeItemId& item, int image); + // set the selected item image + void SetItemSelectedImage(const wxTreeItemId& item, int image); + // associate some data with the item + void SetItemData(const wxTreeItemId& item, wxTreeItemData *data); + + // 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& item, bool has = TRUE); + + // the item will be shown in bold + void SetItemBold(const wxTreeItemId& item, bool bold = TRUE); + + // item status inquiries + // --------------------- + + // is the item visible (it might be outside the view or not expanded)? + bool IsVisible(const wxTreeItemId& item) const; + // does the item has any children? + bool HasChildren(const wxTreeItemId& item) const + { return ItemHasChildren(item); } + bool ItemHasChildren(const wxTreeItemId& item) const; + // is the item expanded (only makes sense if HasChildren())? + bool IsExpanded(const wxTreeItemId& item) const; + // is this item currently selected (the same as has focus)? + bool IsSelected(const wxTreeItemId& item) const; + // is item text in bold font? + bool IsBold(const wxTreeItemId& item) const; + + // number of children + // ------------------ + + // if 'recursively' is FALSE, only immediate children count, otherwise + // the returned number is the number of all items in this branch + size_t GetChildrenCount(const wxTreeItemId& item, bool recursively = TRUE); + + // navigation + // ---------- + + // wxTreeItemId.IsOk() will return FALSE if there is no such item + + // get the root tree item + wxTreeItemId GetRootItem() const { return m_anchor; } + + // get the item currently selected (may return NULL if no selection) + wxTreeItemId GetSelection() const { return m_current; } + + // get the parent of this item (may return NULL if root) + wxTreeItemId GetParent(const wxTreeItemId& item) 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, long& cookie) const; + // get the next child + wxTreeItemId GetNextChild(const wxTreeItemId& item, long& cookie) const; + // get the last child of this item - this method doesn't use cookies + wxTreeItemId GetLastChild(const wxTreeItemId& item) const; + + // get the next sibling of this item + wxTreeItemId GetNextSibling(const wxTreeItemId& item) const; + // get the previous sibling + wxTreeItemId GetPrevSibling(const wxTreeItemId& item) const; + + // get first visible item + wxTreeItemId GetFirstVisibleItem() const; + // get the next visible item: item must be visible itself! + // see IsVisible() and wxTreeCtrl::GetFirstVisibleItem() + wxTreeItemId GetNextVisible(const wxTreeItemId& item) const; + // get the previous visible item: item must be visible itself! + wxTreeItemId GetPrevVisible(const wxTreeItemId& item) const; + + // operations + // ---------- + + // add the root node to the tree + wxTreeItemId AddRoot(const wxString& text, + int image = -1, int selectedImage = -1, + wxTreeItemData *data = NULL); + + // insert a new item in as the first child of the parent + wxTreeItemId PrependItem(const wxTreeItemId& parent, + const wxString& text, + int image = -1, int selectedImage = -1, + wxTreeItemData *data = NULL); + + // insert a new item after a given one + wxTreeItemId InsertItem(const wxTreeItemId& parent, + const wxTreeItemId& idPrevious, + const wxString& text, + int image = -1, int selectedImage = -1, + wxTreeItemData *data = NULL); + + // insert a new item in as the last child of the parent + wxTreeItemId AppendItem(const wxTreeItemId& parent, + const wxString& text, + int image = -1, int selectedImage = -1, + wxTreeItemData *data = NULL); + + // delete this item and associated data if any + void Delete(const wxTreeItemId& item); + // delete all children (but don't delete the item itself) + // NB: this won't send wxEVT_COMMAND_TREE_ITEM_DELETED events + void DeleteChildren(const wxTreeItemId& item); + // delete all items from the tree + // NB: this won't send wxEVT_COMMAND_TREE_ITEM_DELETED events + void DeleteAllItems(); + + // expand this item + void Expand(const wxTreeItemId& item); + // collapse the item without removing its children + void Collapse(const wxTreeItemId& item); + // collapse the item and remove all children + void CollapseAndReset(const wxTreeItemId& item); + // toggles the current state + void Toggle(const wxTreeItemId& item); + + // remove the selection from currently selected item (if any) + void Unselect(); + // select this item + void SelectItem(const wxTreeItemId& item); + // make sure this item is visible (expanding the parent item and/or + // scrolling to this item if necessary) + void EnsureVisible(const wxTreeItemId& item); + // scroll to this item (but don't expand its parent) + void ScrollTo(const wxTreeItemId& item); + + // 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& point) + { int dummy; return HitTest(point, dummy); } + wxTreeItemId HitTest(const wxPoint& point, int& flags); + + // start editing the item label: this (temporarily) replaces the item + // with a one line edit control. The item will be selected if it hadn't + // been before. textCtrlClass parameter allows you to create an edit + // control of arbitrary user-defined class deriving from wxTextCtrl. + wxTextCtrl* EditLabel(const wxTreeItemId& item, + wxClassInfo* textCtrlClass = CLASSINFO(wxTextCtrl)); + // returns the same pointer as StartEdit() if the item is being edited, + // NULL otherwise (it's assumed that no more than one item may be + // edited simultaneously) + wxTextCtrl* GetEditControl() const; + // end editing and accept or discard the changes to item label + void EndEditLabel(const wxTreeItemId& item, bool discardChanges = 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& item1, + const wxTreeItemId& item2); + // sort the children of this item using OnCompareItems + // + // NB: this function is not reentrant and not MT-safe (FIXME)! + void SortChildren(const wxTreeItemId& item); + + // callbacks + void OnPaint( wxPaintEvent &event ); + void OnSetFocus( wxFocusEvent &event ); + void OnKillFocus( wxFocusEvent &event ); + void OnChar( wxKeyEvent &event ); + void OnMouse( wxMouseEvent &event ); + void OnIdle( wxIdleEvent &event ); + + // implementation + void SendDeleteEvent(wxGenericTreeItem *itemBeingDeleted); + +protected: + wxGenericTreeItem *m_anchor; + wxGenericTreeItem *m_current; + bool m_hasFocus; + bool m_dirty; + int m_xScroll,m_yScroll; + unsigned int m_indent; + int m_lineHeight; + wxPen m_dottedPen; + wxBrush *m_hilightBrush; + wxImageList *m_imageListNormal, + *m_imageListState; + int m_dragCount; + + // the common part of all ctors + void Init(); + + // misc helpers + wxTreeItemId DoInsertItem(const wxTreeItemId& parent, + size_t previous, + const wxString& text, + int image, int selectedImage, + wxTreeItemData *data); + + void AdjustMyScrollbars(); + void PaintLevel( wxGenericTreeItem *item, wxDC& dc, int level, int &y ); + void PaintItem( wxGenericTreeItem *item, wxDC& dc); + + void CalculateLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &y ); + void CalculatePositions(); + + void RefreshSubtree( wxGenericTreeItem *item ); + void RefreshLine( wxGenericTreeItem *item ); private: - // set the selection to the specified item generating appropriate event(s) - void SelectItem(wxGenericTreeItem *item); - - wxGenericTreeItem *m_anchor; - wxGenericTreeItem *m_current; - bool m_hasFocus; - int m_xScroll,m_yScroll; - int m_indent; - long m_lastId; - int m_lineHeight; - wxPen m_dottedPen; - bool m_isCreated; - wxBrush *m_hilightBrush; - wxImageList *m_imageList; - wxImageList *m_smallImageList; - - void CalculateLevel( wxGenericTreeItem *item, wxPaintDC &dc, int level, int &y ); - void CalculatePositions(); - wxGenericTreeItem *FindItem( long itemId ) const; - void RefreshLine( wxGenericTreeItem *item ); - - DECLARE_EVENT_TABLE() - DECLARE_DYNAMIC_CLASS(wxTreeCtrl) + DECLARE_EVENT_TABLE() + DECLARE_DYNAMIC_CLASS(wxTreeCtrl) }; -#endif - // __GTKTREECTRLH_G__ +#endif // _GENERIC_TREECTRL_H_ +