// Created: 08/08/98
// RCS-ID: $Id$
// Copyright: (c) Denis Pershin
-// Licence: wxWindows license
+// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_TREECTRL_H_
#include <gtk/gtk.h>
-// WXDLLEXPORT_DATA(extern const char*) wxTreeNameStr;
-
-#define wxTREE_MASK_HANDLE 0x0001
-#define wxTREE_MASK_STATE 0x0002
-#define wxTREE_MASK_TEXT 0x0004
-#define wxTREE_MASK_IMAGE 0x0008
-#define wxTREE_MASK_SELECTED_IMAGE 0x0010
-#define wxTREE_MASK_CHILDREN 0x0020
-#define wxTREE_MASK_DATA 0x0040
-
-#define wxTREE_STATE_BOLD 0x0001
-#define wxTREE_STATE_DROPHILITED 0x0002
-#define wxTREE_STATE_EXPANDED 0x0004
-#define wxTREE_STATE_EXPANDEDONCE 0x0008
-#define wxTREE_STATE_FOCUSED 0x0010
-#define wxTREE_STATE_SELECTED 0x0020
-#define wxTREE_STATE_CUT 0x0040
-
-#define wxTREE_HITTEST_ABOVE 0x0001 // Above the client area.
-#define wxTREE_HITTEST_BELOW 0x0002 // Below the client area.
-#define wxTREE_HITTEST_NOWHERE 0x0004 // In the client area but below the last item.
-#define wxTREE_HITTEST_ONITEMBUTTON 0x0010 // On the button associated with an item.
-#define wxTREE_HITTEST_ONITEMICON 0x0020 // On the bitmap associated with an item.
-#define wxTREE_HITTEST_ONITEMINDENT 0x0040 // In the indentation associated with an item.
-#define wxTREE_HITTEST_ONITEMLABEL 0x0080 // On the label (string) associated with an item.
-#define wxTREE_HITTEST_ONITEMRIGHT 0x0100 // In the area to the right of an item.
-#define wxTREE_HITTEST_ONITEMSTATEICON 0x0200 // On the state icon for a tree view item that is in a user-defined state.
-#define wxTREE_HITTEST_TOLEFT 0x0400 // To the right of the client area.
-#define wxTREE_HITTEST_TORIGHT 0x0800 // To the left of the client area.
-
-#define wxTREE_HITTEST_ONITEM (wxTREE_HITTEST_ONITEMICON | wxTREE_HITTEST_ONITEMLABEL | wxTREE_HITTEST_ONITEMSTATEICON)
-
-// Flags for GetNextItem
-enum {
- wxTREE_NEXT_CARET, // Retrieves the currently selected item.
- wxTREE_NEXT_CHILD, // Retrieves the first child item. The hItem parameter must be NULL.
- wxTREE_NEXT_DROPHILITE, // Retrieves the item that is the target of a drag-and-drop operation.
- wxTREE_NEXT_FIRSTVISIBLE, // Retrieves the first visible item.
- wxTREE_NEXT_NEXT, // Retrieves the next sibling item.
- wxTREE_NEXT_NEXTVISIBLE, // Retrieves the next visible item that follows the specified item.
- wxTREE_NEXT_PARENT, // Retrieves the parent of the specified item.
- wxTREE_NEXT_PREVIOUS, // Retrieves the previous sibling item.
- wxTREE_NEXT_PREVIOUSVISIBLE, // Retrieves the first visible item that precedes the specified item.
- wxTREE_NEXT_ROOT // Retrieves the first child item of the root item of which the specified item is a part.
-};
-
-// Flags for ExpandItem
-enum {
+// the type for "untyped" data
+typedef long wxDataType;
+
+// fwd decl
+class wxImageList;
+struct 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
+// 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
-{
- DECLARE_DYNAMIC_CLASS(wxTreeItem)
+// ----------------------------------------------------------------------------
+// wxTreeItemId identifies an element of the tree. In this implementation, it's
+// just a trivial wrapper around GTK GtkTreeItem *. It's opaque for the
+// application.
+// ----------------------------------------------------------------------------
+class WXDLLEXPORT wxTreeItemId {
+public:
+ // ctors
+ wxTreeItemId() { m_itemId = NULL; }
+
+ // default copy ctor/assignment operator are ok for us
+
+ // accessors
+ // is this a valid tree item?
+ bool IsOk() const { return m_itemId != NULL; }
+
+ // 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(GtkTreeItem *itemId) { m_itemId = itemId; }
+ operator GtkTreeItem *() const { return m_itemId; }
+ void operator =(GtkTreeItem *item) { m_itemId = item; }
+
+protected:
+ GtkTreeItem *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:
- 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; }
+ // 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 {
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();
-
- bool Create(wxWindow *parent, wxWindowID id = -1,
- const wxPoint& pos = wxDefaultPosition,
- const wxSize& size = wxDefaultSize,
- long style = wxTR_HAS_BUTTONS|wxTR_LINES_AT_ROOT,
- const wxValidator& validator = wxDefaultValidator,
- const wxString& name = "wxTreeCtrl");
-
- // accessors
- // ---------
- //
- int GetCount() const;
-
- // indent
- int GetIndent() const;
- void SetIndent(int indent);
- // image list
- wxImageList *GetImageList(int which = wxIMAGE_LIST_NORMAL) const;
- void SetImageList(wxImageList *imageList, int which = wxIMAGE_LIST_NORMAL);
-
- // navigation inside the tree
- long GetNextItem(long item, int code) const;
- bool ItemHasChildren(long item) const;
- long GetChild(long item) const;
- long GetParent(long item) const;
- long GetFirstVisibleItem() const;
- long GetNextVisibleItem(long item) const;
- long GetSelection() const;
- long GetRootItem() const;
-
- // generic function for (g|s)etting item attributes
- bool GetItem(wxTreeItem& info) const;
- bool SetItem(wxTreeItem& info);
- // item state
- int GetItemState(long item, long stateMask) const;
- bool SetItemState(long item, long state, long stateMask);
- // item image
- bool SetItemImage(long item, int image, int selImage);
- // item text
- wxString GetItemText(long item) const;
- void SetItemText(long item, const wxString& str);
- // custom data associated with the item
- long GetItemData(long item) const;
- bool SetItemData(long item, long data);
- // convenience function
- bool IsItemExpanded(long item) {
- return (GetItemState(item, wxTREE_STATE_EXPANDED) &
- wxTREE_STATE_EXPANDED) != 0;
- }
- // bounding rect
- bool GetItemRect(long item, wxRectangle& rect, bool textOnly = FALSE) const;
- //
- wxTextCtrl* GetEditControl() const;
-
+ 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 = "wxTreeCtrl");
+
+ // 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;
+ 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);
+
+ // 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;
+
+ // 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();
- bool DeleteChildren(long item);
-
- // Edit the label (tree must have the focus)
- wxTextCtrl* EditLabel(long item, wxClassInfo* textControlClass = CLASSINFO(wxTextCtrl));
-
- // End label editing, optionally cancelling the edit
- bool EndEditLabel(bool cancel);
-
- long HitTest(const wxPoint& point, int& flags);
- // wxImageList *CreateDragImage(long item);
- bool SortChildren(long item);
- bool EnsureVisible(long item);
-
- void SendExpanding(long item);
- void SendExpanded(long item);
- void SendCollapsing(long item);
- void SendCollapsed(long item);
- void SendSelChanging(long item);
- void SendSelChanged(long item);
+
+ // 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);
+
+ // 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); }
+
+ void SendExpanding(const wxTreeItemId& item);
+ void SendExpanded(const wxTreeItemId& item);
+ void SendCollapsing(const wxTreeItemId& item);
+ void SendCollapsed(const wxTreeItemId& item);
+ void SendSelChanging(const wxTreeItemId& item);
+ void SendSelChanged(const wxTreeItemId& item);
protected:
+ wxTreeItemId m_editItem;
GtkTree *m_tree;
GtkTreeItem *m_anchor;
wxTextCtrl* m_textCtrl;
long m_curitemId;
- GtkTreeItem *findGtkTreeItem(long item) const;
+ void SendMessage(wxEventType command, const wxTreeItemId& item);
+// GtkTreeItem *findGtkTreeItem(wxTreeCtrlId &id) const;
+
+ // the common part of all ctors
+ void Init();
+ // insert a new item in as the last child of the parent
+ wxTreeItemId p_InsertItem(GtkTreeItem *p,
+ const wxString& text,
+ int image, int selectedImage,
+ wxTreeItemData *data);
+
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 wxCommandEvent
{
- 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; }
+ // 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; }
+
+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, 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_
projects / wxWidgets.git / blobdiff