X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/bbcdf8bc7ca806d8278c7cb6d09d5590378b67d8..9ac654169e56b1a4a924f03773e13ad1f3e739c4:/include/wx/msw/treectrl.h diff --git a/include/wx/msw/treectrl.h b/include/wx/msw/treectrl.h index 24eb312a81..716be96073 100644 --- a/include/wx/msw/treectrl.h +++ b/include/wx/msw/treectrl.h @@ -2,297 +2,533 @@ // Name: treectrl.h // Purpose: wxTreeCtrl class // Author: Julian Smart -// Modified by: +// Modified by: Vadim Zeitlin to be less MSW-specific on 10/10/98 // Created: 01/02/97 // RCS-ID: $Id$ // Copyright: (c) Julian Smart and Markus Holzem -// Licence: wxWindows license +// Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_TREECTRL_H_ #define _WX_TREECTRL_H_ +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- #ifdef __GNUG__ -#pragma interface "treectrl.h" + #pragma interface "treectrl.h" #endif #include "wx/control.h" #include "wx/event.h" -#include "wx/imaglist.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 { +#ifdef __MINGW32__ +#undef GetFirstChild() +#undef GetNextSibling() +#endif + +// the type for "untyped" data +typedef long wxDataType; + +// fwd decl +class WXDLLEXPORT wxImageList; +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; +typedef int (*wxTreeItemCmpFunc)(wxTreeItemData *item1, wxTreeItemData *item2); + +// ---------------------------------------------------------------------------- +// constants +// ---------------------------------------------------------------------------- + +// values for the `flags' parameter of wxTreeCtrl::HitTest() which determine +// where exactly the specified point is situated: + // above the client area. +static const int wxTREE_HITTEST_ABOVE = 0x0001; + // below the client area. +static const int wxTREE_HITTEST_BELOW = 0x0002; + // in the client area but below the last item. +static const int wxTREE_HITTEST_NOWHERE = 0x0004; + // on the button associated with an item. +static const int wxTREE_HITTEST_ONITEMBUTTON = 0x0010; + // on the bitmap associated with an item. +static const int wxTREE_HITTEST_ONITEMICON = 0x0020; + // in the indentation associated with an item. +static const int wxTREE_HITTEST_ONITEMINDENT = 0x0040; + // on the label (string) associated with an item. +static const int wxTREE_HITTEST_ONITEMLABEL = 0x0080; + // in the area to the right of an item. +static const int wxTREE_HITTEST_ONITEMRIGHT = 0x0100; + // on the state icon for a tree view item that is in a user-defined state. +static const int wxTREE_HITTEST_ONITEMSTATEICON = 0x0200; + // to the right of the client area. +static const int wxTREE_HITTEST_TOLEFT = 0x0400; + // to the left of the client area. +static const int wxTREE_HITTEST_TORIGHT = 0x0800; + // anywhere on the item +static const int wxTREE_HITTEST_ONITEM = wxTREE_HITTEST_ONITEMICON | + wxTREE_HITTEST_ONITEMLABEL | + wxTREE_HITTEST_ONITEMSTATEICON; + +// NB: all the following flags are for compatbility only and will be removed in the +// next versions + +// flags for deprecated `Expand(int action)' +enum +{ wxTREE_EXPAND_EXPAND, wxTREE_EXPAND_COLLAPSE, wxTREE_EXPAND_COLLAPSE_RESET, wxTREE_EXPAND_TOGGLE }; -// Flags for InsertItem +// flags for deprecated InsertItem() variant #define wxTREE_INSERT_FIRST 0xFFFF0001 #define wxTREE_INSERT_LAST 0xFFFF0002 -#define wxTREE_INSERT_SORT 0xFFFF0003 -class WXDLLEXPORT wxTreeItem: public wxObject +// ---------------------------------------------------------------------------- +// wxTreeItemId identifies an element of the tree. In this implementation, it's +// just a trivial wrapper around Win32 HTREEITEM. It's opaque for the +// application. +// ---------------------------------------------------------------------------- +class WXDLLEXPORT wxTreeItemId { - 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; } + // ctors + // 0 is invalid value for HTREEITEM + wxTreeItemId() { m_itemId = 0; } + + // default copy ctor/assignment operator are ok for us + + // accessors + // is this a valid tree item? + bool IsOk() const { return m_itemId != 0; } + + // conversion to/from either real (system-dependent) tree item id or + // to "long" which used to be the type for tree item ids in previous + // versions of wxWindows + + // for wxTreeCtrl usage only + wxTreeItemId(WXHTREEITEM itemId) { m_itemId = (long)itemId; } + operator WXHTREEITEM() const { return (WXHTREEITEM)m_itemId; } + + void operator=(WXHTREEITEM item) { m_itemId = (long) item; } + +protected: + long m_itemId; +}; + +// ---------------------------------------------------------------------------- +// wxTreeItemData is some (arbitrary) user class associated with some item. The +// main advantage of having this class (compared to old untyped interface) is +// that wxTreeItemData's are destroyed automatically by the tree and, as this +// class has virtual dtor, it means that the memory will be automatically +// freed. OTOH, we don't just use wxObject instead of wxTreeItemData because +// the size of this class is critical: in any real application, each tree leaf +// will have wxTreeItemData associated with it and number of leaves may be +// quite big. +// +// Because the objects of this class are deleted by the tree, they should +// always be allocated on the heap! +// ---------------------------------------------------------------------------- +class WXDLLEXPORT wxTreeItemData : private wxTreeItemId +{ +public: + // default ctor/copy ctor/assignment operator are ok + + // dtor is virtual and all the items are deleted by the tree control when + // it's deleted, so you normally don't have to care about freeing memory + // allocated in your wxTreeItemData-derived class + virtual ~wxTreeItemData() { } + + // accessors: set/get the item associated with this node + void SetId(const wxTreeItemId& id) { m_itemId = id; } + const wxTreeItemId& GetId() const { return (wxTreeItemId&) m_itemId; } }; -class WXDLLEXPORT wxTreeCtrl: public wxControl +// ---------------------------------------------------------------------------- +// wxTreeCtrl +// ---------------------------------------------------------------------------- +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") + 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 = "wxTreeCtrl") { Create(parent, id, pos, size, style, validator, name); } - ~wxTreeCtrl(); - + + 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, + 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; - + // 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; + 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. 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. + + // 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 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; + + // get the item currently selected (may return NULL if no selection) + wxTreeItemId GetSelection() const; + + // 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 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 // ---------- - // 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(); - - // 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); - - // IMPLEMENTATION + + // 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 items from the tree + 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); + + // 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); + + // sort the children of this item using the specified callback function + // (it should return -1, 0 or +1 as usual), if it's not specified + // alphabetical comparaison is performed. + // + // NB: this function is not reentrant! + void SortChildren(const wxTreeItemId& item, + wxTreeItemCmpFunc *cmpFunction = NULL); + + // 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& point) + { int dummy; return HitTest(point, dummy); } + wxTreeItemId HitTest(const wxPoint& point, int& flags); + + // get the bounding rectangle of the item (or of its label only) + // @@@ do we really need to expose this functions to the application? + void GetBoundingRect(const wxTreeItemId& item, + wxRect& rect, + bool textOnly = FALSE) const; + + // deprecated + // ---------- + + // these methods are deprecated and will be removed in future versions of + // wxWindows, 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 + void ExpandItem(const wxTreeItemId& item, int action); + + // use AddRoot, PrependItem or AppendItem + wxTreeItemId InsertItem(const wxTreeItemId& parent, + const wxString& text, + int image = -1, int selImage = -1, + long insertAfter = wxTREE_INSERT_LAST); + + // use Set/GetImageList and Set/GetStateImageList + wxImageList *GetImageList(int) const + { return GetImageList(); } + void SetImageList(wxImageList *imageList, int) + { SetImageList(imageList); } + + // implementation + // -------------- void Command(wxCommandEvent& event) { ProcessCommand(event); }; - bool MSWCommand(WXUINT param, WXWORD id); - bool MSWNotify(WXWPARAM wParam, WXLPARAM lParam); - + virtual bool MSWCommand(WXUINT param, WXWORD id); + virtual bool MSWNotify(WXWPARAM wParam, WXLPARAM lParam, WXLPARAM *result); + protected: - wxTextCtrl* m_textCtrl; - wxImageList* m_imageListNormal; - wxImageList* m_imageListState; + // SetImageList helper + void SetAnyImageList(wxImageList *imageList, int which); + + wxTextCtrl* m_textCtrl; // used while editing the item label + wxImageList *m_imageListNormal, // images for tree elements + *m_imageListState; // special images for app defined states + +private: + // the common part of all ctors + void Init(); + + // helper functions + inline bool DoGetItem(wxTreeViewItem *tvItem) const; + inline void DoSetItem(wxTreeViewItem *tvItem); + + inline void DoExpand(const wxTreeItemId& item, int flag); + + wxTreeItemId DoInsertItem(const wxTreeItemId& parent, + wxTreeItemId hInsertAfter, + const wxString& text, + int image, int selectedImage, + wxTreeItemData *data); + + void DeleteTextCtrl(); 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 +// ---------------------------------------------------------------------------- +// wxTreeEvent is a special class for all events associated with tree controls +// +// NB: note that not all accessors make sense for all events, see the event +// descriptions below +// ---------------------------------------------------------------------------- +class WXDLLEXPORT wxTreeEvent : public wxNotifyEvent { - DECLARE_DYNAMIC_CLASS(wxTreeEvent) +friend 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; } - public: - wxTreeEvent(wxEventType commandType = wxEVT_NULL, int id = 0); + // 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; } - int m_code; - wxTreeItem m_item; - long m_oldItem; - wxPoint m_pointDrag; + // keyboard code (for wxEVT_COMMAND_TREE_KEY_DOWN only) + int GetCode() 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 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&); -#define EVT_TREE_BEGIN_DRAG(id, fn) { wxEVT_COMMAND_TREE_BEGIN_DRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, -#define EVT_TREE_BEGIN_RDRAG(id, fn) { wxEVT_COMMAND_TREE_BEGIN_RDRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, -#define EVT_TREE_BEGIN_LABEL_EDIT(id, fn) { wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, -#define EVT_TREE_END_LABEL_EDIT(id, fn) { wxEVT_COMMAND_TREE_END_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, -#define EVT_TREE_DELETE_ITEM(id, fn) { wxEVT_COMMAND_TREE_DELETE_ITEM, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, -#define EVT_TREE_GET_INFO(id, fn) { wxEVT_COMMAND_TREE_GET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, -#define EVT_TREE_SET_INFO(id, fn) { wxEVT_COMMAND_TREE_SET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, -#define EVT_TREE_ITEM_EXPANDED(id, fn) { wxEVT_COMMAND_TREE_ITEM_EXPANDED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, -#define EVT_TREE_ITEM_EXPANDING(id, fn) { wxEVT_COMMAND_TREE_ITEM_EXPANDING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, -#define EVT_TREE_ITEM_COLLAPSED(id, fn) { wxEVT_COMMAND_TREE_ITEM_COLLAPSED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, +// ---------------------------------------------------------------------------- +// 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 }, + +// 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, NULL }, + +// 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 }, + +// 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 }, +// 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 }, + #endif // _WX_TREECTRL_H_