wxTreeCtrl Class Reference

#include <wx/treectrl.h>

Inheritance diagram for wxTreeCtrl:

Detailed Description

A tree control presents information as a hierarchy, with items that may be expanded to show further items.

Items in a tree control are referenced by wxTreeItemId handles, which may be tested for validity by calling wxTreeItemId::IsOk().

A similar control with a fully native implementation for GTK+ and OS X as well is wxDataViewTreeCtrl.

To intercept events from a tree control, use the event table macros described in wxTreeEvent.

Styles

This class supports the following styles:

• wxTR_EDIT_LABELS:
  Use this style if you wish the user to be able to edit labels in the tree control.
• wxTR_NO_BUTTONS:
  For convenience to document that no buttons are to be drawn.
• wxTR_HAS_BUTTONS:
  Use this style to show + and - buttons to the left of parent items.
• wxTR_TWIST_BUTTONS:
  Selects alternative style of +/- buttons and shows rotating ("twisting") arrows instead. Currently this style is only implemented under Microsoft Windows Vista and later Windows versions and is ignored under the other platforms. Notice that under Vista this style results in the same appearance as used by the tree control in Explorer and other built-in programs and so using it may be preferable to the default style.
• wxTR_NO_LINES:
  Use this style to hide vertical level connectors.
• wxTR_FULL_ROW_HIGHLIGHT:
  Use this style to have the background colour and the selection highlight extend over the entire horizontal row of the tree control window. (This flag is ignored under Windows unless you specify wxTR_NO_LINES as well.)
• wxTR_LINES_AT_ROOT:
  Use this style to show lines between root nodes. Only applicable if wxTR_HIDE_ROOT is set and wxTR_NO_LINES is not set.
• wxTR_HIDE_ROOT:
  Use this style to suppress the display of the root node, effectively causing the first-level nodes to appear as a series of root nodes.
• wxTR_ROW_LINES:
  Use this style to draw a contrasting border between displayed rows.
• wxTR_HAS_VARIABLE_ROW_HEIGHT:
  Use this style to cause row heights to be just big enough to fit the content. If not set, all rows use the largest row height. The default is that this flag is unset. Generic only.
• wxTR_SINGLE:
  For convenience to document that only one item may be selected at a time. Selecting another item causes the current selection, if any, to be deselected. This is the default.
• wxTR_MULTIPLE:
  Use this style to allow a range of items to be selected. If a second range is selected, the current range, if any, is deselected.
• wxTR_DEFAULT_STYLE:
  The set of flags that are closest to the defaults for the native control for a particular toolkit.

Events emitted by this class

The following event handler macros redirect the events to member function handlers 'func' with prototypes like:

void handlerFuncName(wxTreeEvent& event)

Event macros for events emitted by this class:

• EVT_TREE_BEGIN_DRAG(id, func):
  Begin dragging with the left mouse button. If you want to enable left-dragging you need to intercept this event and explicitly call wxTreeEvent::Allow(), as it's vetoed by default. Processes a wxEVT_TREE_BEGIN_DRAG event type.
• EVT_TREE_BEGIN_RDRAG(id, func):
  Begin dragging with the right mouse button. If you want to enable right-dragging you need to intercept this event and explicitly call wxTreeEvent::Allow(), as it's vetoed by default. Processes a wxEVT_TREE_BEGIN_RDRAG event type.
• EVT_TREE_END_DRAG(id, func):
  End dragging with the left or right mouse button. Processes a wxEVT_TREE_END_DRAG event type.
• EVT_TREE_BEGIN_LABEL_EDIT(id, func):
  Begin editing a label. This can be prevented by calling Veto(). Processes a wxEVT_TREE_BEGIN_LABEL_EDIT event type.
• EVT_TREE_END_LABEL_EDIT(id, func):
  Finish editing a label. This can be prevented by calling Veto(). Processes a wxEVT_TREE_END_LABEL_EDIT event type.
• EVT_TREE_DELETE_ITEM(id, func):
  An item was deleted. Processes a wxEVT_TREE_DELETE_ITEM event type.
• EVT_TREE_GET_INFO(id, func):
  Request information from the application. Processes a wxEVT_TREE_GET_INFO event type.
• EVT_TREE_SET_INFO(id, func):
  Information is being supplied. Processes a wxEVT_TREE_SET_INFO event type.
• EVT_TREE_ITEM_ACTIVATED(id, func):
  The item has been activated, i.e. chosen by double clicking it with mouse or from keyboard. Processes a wxEVT_TREE_ITEM_ACTIVATED event type.
• EVT_TREE_ITEM_COLLAPSED(id, func):
  The item has been collapsed. Processes a wxEVT_TREE_ITEM_COLLAPSED event type.
• EVT_TREE_ITEM_COLLAPSING(id, func):
  The item is being collapsed. This can be prevented by calling Veto(). Processes a wxEVT_TREE_ITEM_COLLAPSING event type.
• EVT_TREE_ITEM_EXPANDED(id, func):
  The item has been expanded. Processes a wxEVT_TREE_ITEM_EXPANDED event type.
• EVT_TREE_ITEM_EXPANDING(id, func):
  The item is being expanded. This can be prevented by calling Veto(). Processes a wxEVT_TREE_ITEM_EXPANDING event type.
• EVT_TREE_ITEM_RIGHT_CLICK(id, func):
  The user has clicked the item with the right mouse button. Processes a wxEVT_TREE_ITEM_RIGHT_CLICK event type.
• EVT_TREE_ITEM_MIDDLE_CLICK(id, func):
  The user has clicked the item with the middle mouse button. This is only supported by the generic control. Processes a wxEVT_TREE_ITEM_MIDDLE_CLICK event type.
• EVT_TREE_SEL_CHANGED(id, func):
  Selection has changed. Processes a wxEVT_TREE_SEL_CHANGED event type.
• EVT_TREE_SEL_CHANGING(id, func):
  Selection is changing. This can be prevented by calling Veto(). Processes a wxEVT_TREE_SEL_CHANGING event type.
• EVT_TREE_KEY_DOWN(id, func):
  A key has been pressed. Processes a wxEVT_TREE_KEY_DOWN event type.
• EVT_TREE_ITEM_GETTOOLTIP(id, func):
  The opportunity to set the item tooltip is being given to the application (call wxTreeEvent::SetToolTip). Windows only. Processes a wxEVT_TREE_ITEM_GETTOOLTIP event type.
• EVT_TREE_ITEM_MENU(id, func):
  The context menu for the selected item has been requested, either by a right click or by using the menu key. Processes a wxEVT_TREE_ITEM_MENU event type.
• EVT_TREE_STATE_IMAGE_CLICK(id, func):
  The state image has been clicked. Processes a wxEVT_TREE_STATE_IMAGE_CLICK event type.

See also Window Styles.

Win32 notes:

wxTreeCtrl class uses the standard common treeview control under Win32 implemented in the system library comctl32.dll. Some versions of this library are known to have bugs with handling the tree control colours: the usual symptom is that the expanded items leave black (or otherwise incorrectly coloured) background behind them, especially for the controls using non-default background colour. The recommended solution is to upgrade the comctl32.dll to a newer version: see http://www.microsoft.com/downloads/details.aspx?familyid=cb2cf3a2-8025-4e8f-8511-9b476a8d35d2

Library:  wxCore

Category:  Controls

Appearance:

wxMSW Appearance

wxGTK Appearance

wxOSX Appearance

See Also

wxDataViewTreeCtrl, wxTreeEvent, wxTreeItemData, wxTreeCtrl Overview, wxListBox, wxListCtrl, wxImageList

Public Member Functions
	wxTreeCtrl ()
	Default Constructor.
	wxTreeCtrl (wxWindow *parent, wxWindowID id=wxID_ANY, const wxPoint &pos=wxDefaultPosition, const wxSize &size=wxDefaultSize, long style=wxTR_DEFAULT_STYLE, const wxValidator &validator=wxDefaultValidator, const wxString &name=wxTreeCtrlNameStr)
	Constructor, creating and showing a tree control.
virtual	~wxTreeCtrl ()
	Destructor, destroying the tree control.
virtual wxTreeItemId	AddRoot (const wxString &text, int image=-1, int selImage=-1, wxTreeItemData *data=NULL)
	Adds the root node to the tree, returning the new item.
wxTreeItemId	AppendItem (const wxTreeItemId &parent, const wxString &text, int image=-1, int selImage=-1, wxTreeItemData *data=NULL)
	Appends an item to the end of the branch identified by parent, return a new item id.
void	AssignButtonsImageList (wxImageList *imageList)
	Sets the buttons image list.
void	AssignImageList (wxImageList *imageList)
	Sets the normal image list.
void	AssignStateImageList (wxImageList *imageList)
	Sets the state image list.
virtual void	Collapse (const wxTreeItemId &item)
	Collapses the given item.
void	CollapseAll ()
	Collapses the root item.
void	CollapseAllChildren (const wxTreeItemId &item)
	Collapses this item and all of its children, recursively.
virtual void	CollapseAndReset (const wxTreeItemId &item)
	Collapses the given item and removes all children.
bool	Create (wxWindow *parent, wxWindowID id=wxID_ANY, const wxPoint &pos=wxDefaultPosition, const wxSize &size=wxDefaultSize, long style=wxTR_DEFAULT_STYLE, const wxValidator &validator=wxDefaultValidator, const wxString &name=wxTreeCtrlNameStr)
	Creates the tree control.
virtual void	Delete (const wxTreeItemId &item)
	Deletes the specified item.
virtual void	DeleteAllItems ()
	Deletes all items in the control.
virtual void	DeleteChildren (const wxTreeItemId &item)
	Deletes all children of the given item (but not the item itself).
virtual wxTextCtrl *	EditLabel (const wxTreeItemId &item, wxClassInfo *textCtrlClass=wxCLASSINFO(wxTextCtrl))
	Starts editing the label of the given item.
void	EnableBellOnNoMatch (bool on=true)
	Enable or disable a beep if there is no match for the currently entered text when searching for the item from keyboard.
virtual void	EndEditLabel (const wxTreeItemId &item, bool discardChanges=false)
	Ends label editing.
virtual void	EnsureVisible (const wxTreeItemId &item)
	Scrolls and/or expands items to ensure that the given item is visible.
virtual void	Expand (const wxTreeItemId &item)
	Expands the given item.
void	ExpandAll ()
	Expands all items in the tree.
void	ExpandAllChildren (const wxTreeItemId &item)
	Expands the given item and all its children recursively.
virtual bool	GetBoundingRect (const wxTreeItemId &item, wxRect &rect, bool textOnly=false) const
	Retrieves the rectangle bounding the item.
wxImageList *	GetButtonsImageList () const
	Returns the buttons image list (from which application-defined button images are taken).
virtual size_t	GetChildrenCount (const wxTreeItemId &item, bool recursively=true) const
	Returns the number of items in the branch.
virtual unsigned int	GetCount () const
	Returns the number of items in the control.
virtual wxTextCtrl *	GetEditControl () const
	Returns the edit control being currently used to edit a label.
virtual wxTreeItemId	GetFirstChild (const wxTreeItemId &item, wxTreeItemIdValue &cookie) const
	Returns the first child; call GetNextChild() for the next child.
virtual wxTreeItemId	GetFirstVisibleItem () const
	Returns the first visible item.
virtual wxTreeItemId	GetFocusedItem () const
	Returns the item last clicked or otherwise selected.
virtual void	ClearFocusedItem ()
	Clears the currently focused item.
virtual void	SetFocusedItem (const wxTreeItemId &item)
	Sets the currently focused item.
wxImageList *	GetImageList () const
	Returns the normal image list.
virtual unsigned int	GetIndent () const
	Returns the current tree control indentation.
virtual wxColour	GetItemBackgroundColour (const wxTreeItemId &item) const
	Returns the background colour of the item.
virtual wxTreeItemData *	GetItemData (const wxTreeItemId &item) const
	Returns the tree item data associated with the item.
virtual wxFont	GetItemFont (const wxTreeItemId &item) const
	Returns the font of the item label.
virtual int	GetItemImage (const wxTreeItemId &item, wxTreeItemIcon which=wxTreeItemIcon_Normal) const
	Gets the specified item image.
virtual wxTreeItemId	GetItemParent (const wxTreeItemId &item) const
	Returns the item's parent.
int	GetItemState (const wxTreeItemId &item) const
	Gets the specified item state.
virtual wxString	GetItemText (const wxTreeItemId &item) const
	Returns the item label.
virtual wxColour	GetItemTextColour (const wxTreeItemId &item) const
	Returns the colour of the item label.
virtual wxTreeItemId	GetLastChild (const wxTreeItemId &item) const
	Returns the last child of the item (or an invalid tree item if this item has no children).
virtual wxTreeItemId	GetNextChild (const wxTreeItemId &item, wxTreeItemIdValue &cookie) const
	Returns the next child; call GetFirstChild() for the first child.
virtual wxTreeItemId	GetNextSibling (const wxTreeItemId &item) const
	Returns the next sibling of the specified item; call GetPrevSibling() for the previous sibling.
virtual wxTreeItemId	GetNextVisible (const wxTreeItemId &item) const
	Returns the next visible item or an invalid item if this item is the last visible one.
virtual wxTreeItemId	GetPrevSibling (const wxTreeItemId &item) const
	Returns the previous sibling of the specified item; call GetNextSibling() for the next sibling.
virtual wxTreeItemId	GetPrevVisible (const wxTreeItemId &item) const
	Returns the previous visible item or an invalid item if this item is the first visible one.
bool	GetQuickBestSize () const
	Returns true if the control will use a quick calculation for the best size, looking only at the first and last items.
virtual wxTreeItemId	GetRootItem () const
	Returns the root item for the tree control.
virtual wxTreeItemId	GetSelection () const
	Returns the selection, or an invalid item if there is no selection.
virtual size_t	GetSelections (wxArrayTreeItemIds &selection) const
	Fills the array of tree items passed in with the currently selected items.
wxImageList *	GetStateImageList () const
	Returns the state image list (from which application-defined state images are taken).
wxTreeItemId	HitTest (const wxPoint &point, int &flags) const
	Calculates which (if any) item is under the given point, returning the tree item id at this point plus extra information flags.
wxTreeItemId	InsertItem (const wxTreeItemId &parent, const wxTreeItemId &previous, const wxString &text, int image=-1, int selImage=-1, wxTreeItemData *data=NULL)
	Inserts an item after a given one (previous).
wxTreeItemId	InsertItem (const wxTreeItemId &parent, size_t pos, const wxString &text, int image=-1, int selImage=-1, wxTreeItemData *data=NULL)
	Inserts an item before one identified by its position (pos).
virtual bool	IsBold (const wxTreeItemId &item) const
	Returns true if the given item is in bold state.
bool	IsEmpty () const
	Returns true if the control is empty (i.e. has no items, even no root one).
virtual bool	IsExpanded (const wxTreeItemId &item) const
	Returns true if the item is expanded (only makes sense if it has children).
virtual bool	IsSelected (const wxTreeItemId &item) const
	Returns true if the item is selected.
virtual bool	IsVisible (const wxTreeItemId &item) const
	Returns true if the item is visible on the screen.
virtual bool	ItemHasChildren (const wxTreeItemId &item) const
	Returns true if the item has children.
virtual int	OnCompareItems (const wxTreeItemId &item1, const wxTreeItemId &item2)
	Override this function in the derived class to change the sort order of the items in the tree control.
wxTreeItemId	PrependItem (const wxTreeItemId &parent, const wxString &text, int image=-1, int selImage=-1, wxTreeItemData *data=NULL)
	Appends an item as the first child of parent, return a new item id.
virtual void	ScrollTo (const wxTreeItemId &item)
	Scrolls the specified item into view.
virtual void	SelectItem (const wxTreeItemId &item, bool select=true)
	Selects the given item.
void	SetButtonsImageList (wxImageList *imageList)
	Sets the buttons image list (from which application-defined button images are taken).
virtual void	SetImageList (wxImageList *imageList)
	Sets the normal image list.
virtual void	SetIndent (unsigned int indent)
	Sets the indentation for the tree control.
virtual void	SetItemBackgroundColour (const wxTreeItemId &item, const wxColour &col)
	Sets the colour of the item's background.
virtual void	SetItemBold (const wxTreeItemId &item, bool bold=true)
	Makes item appear in bold font if bold parameter is true or resets it to the normal state.
virtual void	SetItemData (const wxTreeItemId &item, wxTreeItemData *data)
	Sets the item client data.
virtual void	SetItemDropHighlight (const wxTreeItemId &item, bool highlight=true)
	Gives the item the visual feedback for Drag'n'Drop actions, which is useful if something is dragged from the outside onto the tree control (as opposed to a DnD operation within the tree control, which already is implemented internally).
virtual void	SetItemFont (const wxTreeItemId &item, const wxFont &font)
	Sets the item's font.
virtual void	SetItemHasChildren (const wxTreeItemId &item, bool hasChildren=true)
	Force appearance of the button next to the item.
virtual void	SetItemImage (const wxTreeItemId &item, int image, wxTreeItemIcon which=wxTreeItemIcon_Normal)
	Sets the specified item's image.
void	SetItemState (const wxTreeItemId &item, int state)
	Sets the specified item state.
virtual void	SetItemText (const wxTreeItemId &item, const wxString &text)
	Sets the item label.
virtual void	SetItemTextColour (const wxTreeItemId &item, const wxColour &col)
	Sets the colour of the item's text.
void	SetQuickBestSize (bool quickBestSize)
	If true is passed, specifies that the control will use a quick calculation for the best size, looking only at the first and last items.
virtual void	SetStateImageList (wxImageList *imageList)
	Sets the state image list (from which application-defined state images are taken).
void	SetWindowStyle (long styles)
	Sets the mode flags associated with the display of the tree control.
virtual void	SortChildren (const wxTreeItemId &item)
	Sorts the children of the given item using OnCompareItems().
virtual void	Toggle (const wxTreeItemId &item)
	Toggles the given item between collapsed and expanded states.
void	ToggleItemSelection (const wxTreeItemId &item)
	Toggles the given item between selected and unselected states.
virtual void	Unselect ()
	Removes the selection from the currently selected item (if any).
virtual void	UnselectAll ()
	This function either behaves the same as Unselect() if the control doesn't have wxTR_MULTIPLE style, or removes the selection from all items if it does have this style.
void	UnselectItem (const wxTreeItemId &item)
	Unselects the given item.
virtual void	SelectChildren (const wxTreeItemId &parent)
	Select all the immediate children of the given parent.
Public Member Functions inherited from wxControl
	wxControl (wxWindow *parent, wxWindowID id, const wxPoint &pos=wxDefaultPosition, const wxSize &size=wxDefaultSize, long style=0, const wxValidator &validator=wxDefaultValidator, const wxString &name=wxControlNameStr)
	Constructs a control.
	wxControl ()
	Default constructor to allow 2-phase creation.
bool	Create (wxWindow *parent, wxWindowID id, const wxPoint &pos=wxDefaultPosition, const wxSize &size=wxDefaultSize, long style=0, const wxValidator &validator=wxDefaultValidator, const wxString &name=wxControlNameStr)
virtual void	Command (wxCommandEvent &event)
	Simulates the effect of the user issuing a command to the item.
wxString	GetLabel () const
	Returns the control's label, as it was passed to SetLabel().
wxString	GetLabelText () const
	Returns the control's label without mnemonics.
wxSize	GetSizeFromTextSize (int xlen, int ylen=-1) const
	Determine the size needed by the control to leave the given area for its text.
wxSize	GetSizeFromTextSize (const wxSize &tsize) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void	SetLabel (const wxString &label)
	Sets the control's label.
void	SetLabelText (const wxString &text)
	Sets the control's label to exactly the given string.
bool	SetLabelMarkup (const wxString &markup)
	Sets the controls label to a string using markup.
Public Member Functions inherited from wxWindow
	wxWindow ()
	Default constructor.
	wxWindow (wxWindow *parent, wxWindowID id, const wxPoint &pos=wxDefaultPosition, const wxSize &size=wxDefaultSize, long style=0, const wxString &name=wxPanelNameStr)
	Constructs a window, which can be a child of a frame, dialog or any other non-control window.
virtual	~wxWindow ()
	Destructor.
bool	Create (wxWindow *parent, wxWindowID id, const wxPoint &pos=wxDefaultPosition, const wxSize &size=wxDefaultSize, long style=0, const wxString &name=wxPanelNameStr)
virtual bool	AcceptsFocus () const
	This method may be overridden in the derived classes to return false to indicate that this control doesn't accept input at all (i.e. behaves like e.g. wxStaticText) and so doesn't need focus.
virtual bool	AcceptsFocusFromKeyboard () const
	This method may be overridden in the derived classes to return false to indicate that while this control can, in principle, have focus if the user clicks it with the mouse, it shouldn't be included in the TAB traversal chain when using the keyboard.
virtual bool	AcceptsFocusRecursively () const
	Overridden to indicate whether this window or one of its children accepts focus.
bool	IsFocusable () const
	Can this window itself have focus?
bool	CanAcceptFocus () const
	Can this window have focus right now?
bool	CanAcceptFocusFromKeyboard () const
	Can this window be assigned focus from keyboard right now?
virtual bool	HasFocus () const
	Returns true if the window (or in case of composite controls, its main child window) has focus.
virtual void	SetCanFocus (bool canFocus)
	This method is only implemented by ports which have support for native TAB traversal (such as GTK+ 2.0).
virtual void	SetFocus ()
	This sets the window to receive keyboard input.
virtual void	SetFocusFromKbd ()
	This function is called by wxWidgets keyboard navigation code when the user gives the focus to this window from keyboard (e.g.
virtual void	AddChild (wxWindow *child)
	Adds a child window.
bool	DestroyChildren ()
	Destroys all children of a window.
wxWindow *	FindWindow (long id) const
	Find a child of this window, by id.
wxWindow *	FindWindow (const wxString &name) const
	Find a child of this window, by name.
wxWindowList &	GetChildren ()
	Returns a reference to the list of the window's children.
const wxWindowList &	GetChildren () const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
virtual void	RemoveChild (wxWindow *child)
	Removes a child window.
wxWindow *	GetGrandParent () const
	Returns the grandparent of a window, or NULL if there isn't one.
wxWindow *	GetNextSibling () const
	Returns the next window after this one among the parent's children or NULL if this window is the last child.
wxWindow *	GetParent () const
	Returns the parent of the window, or NULL if there is no parent.
wxWindow *	GetPrevSibling () const
	Returns the previous window before this one among the parent's children or NULL if this window is the first child.
bool	IsDescendant (wxWindowBase *win) const
	Check if the specified window is a descendant of this one.
virtual bool	Reparent (wxWindow *newParent)
	Reparents the window, i.e. the window will be removed from its current parent window (e.g.
virtual void	AlwaysShowScrollbars (bool hflag=true, bool vflag=true)
	Call this function to force one or both scrollbars to be always shown, even if the window is big enough to show its entire contents without scrolling.
virtual int	GetScrollPos (int orientation) const
	Returns the built-in scrollbar position.
virtual int	GetScrollRange (int orientation) const
	Returns the built-in scrollbar range.
virtual int	GetScrollThumb (int orientation) const
	Returns the built-in scrollbar thumb size.
bool	CanScroll (int orient) const
	Returns true if this window can have a scroll bar in this orientation.
bool	HasScrollbar (int orient) const
	Returns true if this window currently has a scroll bar for this orientation.
virtual bool	IsScrollbarAlwaysShown (int orient) const
	Return whether a scrollbar is always shown.
virtual bool	ScrollLines (int lines)
	Scrolls the window by the given number of lines down (if lines is positive) or up.
virtual bool	ScrollPages (int pages)
	Scrolls the window by the given number of pages down (if pages is positive) or up.
virtual void	ScrollWindow (int dx, int dy, const wxRect *rect=NULL)
	Physically scrolls the pixels in the window and move child windows accordingly.
bool	LineUp ()
	Same as ScrollLines (-1).
bool	LineDown ()
	Same as ScrollLines (1).
bool	PageUp ()
	Same as ScrollPages (-1).
bool	PageDown ()
	Same as ScrollPages (1).
virtual void	SetScrollPos (int orientation, int pos, bool refresh=true)
	Sets the position of one of the built-in scrollbars.
virtual void	SetScrollbar (int orientation, int position, int thumbSize, int range, bool refresh=true)
	Sets the scrollbar properties of a built-in scrollbar.
bool	BeginRepositioningChildren ()
	Prepare for changing positions of multiple child windows.
void	EndRepositioningChildren ()
	Fix child window positions after setting all of them at once.
void	CacheBestSize (const wxSize &size) const
	Sets the cached best size value.
virtual wxSize	ClientToWindowSize (const wxSize &size) const
	Converts client area size size to corresponding window size.
virtual wxSize	WindowToClientSize (const wxSize &size) const
	Converts window size size to corresponding client area size In other words, the returned value is what would GetClientSize() return if this window had given window size.
virtual void	Fit ()
	Sizes the window so that it fits around its subwindows.
virtual void	FitInside ()
	Similar to Fit(), but sizes the interior (virtual) size of a window.
wxSize	GetBestSize () const
	This functions returns the best acceptable minimal size for the window.
int	GetBestHeight (int width) const
	Returns the best height needed by this window if it had the given width.
int	GetBestWidth (int height) const
	Returns the best width needed by this window if it had the given height.
void	GetClientSize (int *width, int *height) const
	Returns the size of the window 'client area' in pixels.
wxSize	GetClientSize () const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
virtual wxSize	GetEffectiveMinSize () const
	Merges the window's best size into the min size and returns the result.
virtual wxSize	GetMaxClientSize () const
	Returns the maximum size of window's client area.
virtual wxSize	GetMaxSize () const
	Returns the maximum size of the window.
virtual wxSize	GetMinClientSize () const
	Returns the minimum size of window's client area, an indication to the sizer layout mechanism that this is the minimum required size of its client area.
virtual wxSize	GetMinSize () const
	Returns the minimum size of the window, an indication to the sizer layout mechanism that this is the minimum required size.
int	GetMinWidth () const
	Returns the horizontal component of window minimal size.
int	GetMinHeight () const
	Returns the vertical component of window minimal size.
int	GetMaxWidth () const
	Returns the horizontal component of window maximal size.
int	GetMaxHeight () const
	Returns the vertical component of window maximal size.
void	GetSize (int *width, int *height) const
	Returns the size of the entire window in pixels, including title bar, border, scrollbars, etc.
wxSize	GetSize () const
	See the GetSize(int*,int*) overload for more info.
wxSize	GetVirtualSize () const
	This gets the virtual size of the window in pixels.
void	GetVirtualSize (int *width, int *height) const
	Like the other GetVirtualSize() overload but uses pointers instead.
virtual wxSize	GetBestVirtualSize () const
	Return the largest of ClientSize and BestSize (as determined by a sizer, interior children, or other means)
virtual double	GetContentScaleFactor () const
	Returns the magnification of the backing store of this window, eg 2.0 for a window on a retina screen.
virtual wxSize	GetWindowBorderSize () const
	Returns the size of the left/right and top/bottom borders of this window in x and y components of the result respectively.
virtual bool	InformFirstDirection (int direction, int size, int availableOtherDir)
	wxSizer and friends use this to give a chance to a component to recalc its min size once one of the final size components is known.
void	InvalidateBestSize ()
	Resets the cached best size value so it will be recalculated the next time it is needed.
void	PostSizeEvent ()
	Posts a size event to the window.
void	PostSizeEventToParent ()
	Posts a size event to the parent of this window.
virtual void	SendSizeEvent (int flags=0)
	This function sends a dummy size event to the window allowing it to re-layout its children positions.
void	SendSizeEventToParent (int flags=0)
	Safe wrapper for GetParent()->SendSizeEvent().
void	SetClientSize (int width, int height)
	This sets the size of the window client area in pixels.
void	SetClientSize (const wxSize &size)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void	SetClientSize (const wxRect &rect)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void	SetContainingSizer (wxSizer *sizer)
	This normally does not need to be called by user code.
void	SetInitialSize (const wxSize &size=wxDefaultSize)
	A smart SetSize that will fill in default size components with the window's best size values.
virtual void	SetMaxClientSize (const wxSize &size)
	Sets the maximum client size of the window, to indicate to the sizer layout mechanism that this is the maximum possible size of its client area.
virtual void	SetMaxSize (const wxSize &size)
	Sets the maximum size of the window, to indicate to the sizer layout mechanism that this is the maximum possible size.
virtual void	SetMinClientSize (const wxSize &size)
	Sets the minimum client size of the window, to indicate to the sizer layout mechanism that this is the minimum required size of window's client area.
virtual void	SetMinSize (const wxSize &size)
	Sets the minimum size of the window, to indicate to the sizer layout mechanism that this is the minimum required size.
void	SetSize (int x, int y, int width, int height, int sizeFlags=wxSIZE_AUTO)
	Sets the size of the window in pixels.
void	SetSize (const wxRect &rect)
	Sets the size of the window in pixels.
void	SetSize (const wxSize &size)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void	SetSize (int width, int height)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
virtual void	SetSizeHints (const wxSize &minSize, const wxSize &maxSize=wxDefaultSize, const wxSize &incSize=wxDefaultSize)
	Use of this function for windows which are not toplevel windows (such as wxDialog or wxFrame) is discouraged.
virtual void	SetSizeHints (int minW, int minH, int maxW=-1, int maxH=-1, int incW=-1, int incH=-1)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void	SetVirtualSize (int width, int height)
	Sets the virtual size of the window in pixels.
void	SetVirtualSize (const wxSize &size)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void	Center (int dir=wxBOTH)
	A synonym for Centre().
void	CenterOnParent (int dir=wxBOTH)
	A synonym for CentreOnParent().
void	Centre (int direction=wxBOTH)
	Centres the window.
void	CentreOnParent (int direction=wxBOTH)
	Centres the window on its parent.
void	GetPosition (int *x, int *y) const
	This gets the position of the window in pixels, relative to the parent window for the child windows or relative to the display origin for the top level windows.
wxPoint	GetPosition () const
	This gets the position of the window in pixels, relative to the parent window for the child windows or relative to the display origin for the top level windows.
wxRect	GetRect () const
	Returns the position and size of the window as a wxRect object.
void	GetScreenPosition (int *x, int *y) const
	Returns the window position in screen coordinates, whether the window is a child window or a top level one.
wxPoint	GetScreenPosition () const
	Returns the window position in screen coordinates, whether the window is a child window or a top level one.
wxRect	GetScreenRect () const
	Returns the position and size of the window on the screen as a wxRect object.
virtual wxPoint	GetClientAreaOrigin () const
	Get the origin of the client area of the window relative to the window top left corner (the client area may be shifted because of the borders, scrollbars, other decorations...)
wxRect	GetClientRect () const
	Get the client rectangle in window (i.e. client) coordinates.
void	Move (int x, int y, int flags=wxSIZE_USE_EXISTING)
	Moves the window to the given position.
void	Move (const wxPoint &pt, int flags=wxSIZE_USE_EXISTING)
	Moves the window to the given position.
void	SetPosition (const wxPoint &pt)
	A synonym for Centre().
void	ClientToScreen (int *x, int *y) const
	Converts to screen coordinates from coordinates relative to this window.
wxPoint	ClientToScreen (const wxPoint &pt) const
	Converts to screen coordinates from coordinates relative to this window.
wxPoint	ConvertDialogToPixels (const wxPoint &pt) const
	Converts a point or size from dialog units to pixels.
wxSize	ConvertDialogToPixels (const wxSize &sz) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
wxPoint	ConvertPixelsToDialog (const wxPoint &pt) const
	Converts a point or size from pixels to dialog units.
wxSize	ConvertPixelsToDialog (const wxSize &sz) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void	ScreenToClient (int *x, int *y) const
	Converts from screen to client window coordinates.
wxPoint	ScreenToClient (const wxPoint &pt) const
	Converts from screen to client window coordinates.
virtual void	ClearBackground ()
	Clears the window by filling it with the current background colour.
void	Freeze ()
	Freezes the window or, in other words, prevents any updates from taking place on screen, the window is not redrawn at all.
void	Thaw ()
	Re-enables window updating after a previous call to Freeze().
bool	IsFrozen () const
	Returns true if the window is currently frozen by a call to Freeze().
wxColour	GetBackgroundColour () const
	Returns the background colour of the window.
virtual wxBackgroundStyle	GetBackgroundStyle () const
	Returns the background style of the window.
virtual int	GetCharHeight () const
	Returns the character height for this window.
virtual int	GetCharWidth () const
	Returns the average character width for this window.
virtual wxVisualAttributes	GetDefaultAttributes () const
	Currently this is the same as calling wxWindow::GetClassDefaultAttributes(wxWindow::GetWindowVariant()).
wxFont	GetFont () const
	Returns the font for this window.
wxColour	GetForegroundColour () const
	Returns the foreground colour of the window.
void	GetTextExtent (const wxString &string, int *w, int *h, int *descent=NULL, int *externalLeading=NULL, const wxFont *font=NULL) const
	Gets the dimensions of the string as it would be drawn on the window with the currently selected font.
wxSize	GetTextExtent (const wxString &string) const
	Gets the dimensions of the string as it would be drawn on the window with the currently selected font.
const wxRegion &	GetUpdateRegion () const
	Returns the region specifying which parts of the window have been damaged.
wxRect	GetUpdateClientRect () const
	Get the update rectangle bounding box in client coords.
virtual bool	HasTransparentBackground ()
	Returns true if this window background is transparent (as, for example, for wxStaticText) and should show the parent window background.
virtual void	Refresh (bool eraseBackground=true, const wxRect *rect=NULL)
	Causes this window, and all of its children recursively (except under wxGTK1 where this is not implemented), to be repainted.
void	RefreshRect (const wxRect &rect, bool eraseBackground=true)
	Redraws the contents of the given rectangle: only the area inside it will be repainted.
virtual void	Update ()
	Calling this method immediately repaints the invalidated area of the window and all of its children recursively (this normally only happens when the flow of control returns to the event loop).
virtual bool	SetBackgroundColour (const wxColour &colour)
	Sets the background colour of the window.
virtual bool	SetBackgroundStyle (wxBackgroundStyle style)
	Sets the background style of the window.
virtual bool	IsTransparentBackgroundSupported (wxString *reason=NULL) const
	Checks whether using transparent background might work.
virtual bool	SetFont (const wxFont &font)
	Sets the font for this window.
virtual bool	SetForegroundColour (const wxColour &colour)
	Sets the foreground colour of the window.
void	SetOwnBackgroundColour (const wxColour &colour)
	Sets the background colour of the window but prevents it from being inherited by the children of this window.
bool	InheritsBackgroundColour () const
	Return true if this window inherits the background colour from its parent.
bool	UseBgCol () const
	Return true if a background colour has been set for this window.
void	SetOwnFont (const wxFont &font)
	Sets the font of the window but prevents it from being inherited by the children of this window.
void	SetOwnForegroundColour (const wxColour &colour)
	Sets the foreground colour of the window but prevents it from being inherited by the children of this window.
void	SetPalette (const wxPalette &pal)
virtual bool	ShouldInheritColours () const
	Return true from here to allow the colours of this window to be changed by InheritAttributes().
virtual void	SetThemeEnabled (bool enable)
	This function tells a window if it should use the system's "theme" code to draw the windows' background instead of its own background drawing code.
virtual bool	GetThemeEnabled () const
	Clears the window by filling it with the current background colour.
virtual bool	CanSetTransparent ()
	Returns true if the system supports transparent windows and calling SetTransparent() may succeed.
virtual bool	SetTransparent (wxByte alpha)
	Set the transparency of the window.
wxEvtHandler *	GetEventHandler () const
	Returns the event handler for this window.
bool	HandleAsNavigationKey (const wxKeyEvent &event)
	This function will generate the appropriate call to Navigate() if the key event is one normally used for keyboard navigation and return true in this case.
bool	HandleWindowEvent (wxEvent &event) const
	Shorthand for:
bool	ProcessWindowEvent (wxEvent &event)
	Convenient wrapper for ProcessEvent().
bool	ProcessWindowEventLocally (wxEvent &event)
	Wrapper for wxEvtHandler::ProcessEventLocally().
wxEvtHandler *	PopEventHandler (bool deleteHandler=false)
	Removes and returns the top-most event handler on the event handler stack.
void	PushEventHandler (wxEvtHandler *handler)
	Pushes this event handler onto the event stack for the window.
bool	RemoveEventHandler (wxEvtHandler *handler)
	Find the given handler in the windows event handler stack and removes (but does not delete) it from the stack.
void	SetEventHandler (wxEvtHandler *handler)
	Sets the event handler for this window.
virtual void	SetNextHandler (wxEvtHandler *handler)
	wxWindows cannot be used to form event handler chains; this function thus will assert when called.
virtual void	SetPreviousHandler (wxEvtHandler *handler)
	wxWindows cannot be used to form event handler chains; this function thus will assert when called.
long	GetExtraStyle () const
	Returns the extra style bits for the window.
virtual long	GetWindowStyleFlag () const
	Gets the window style that was passed to the constructor or Create() method.
long	GetWindowStyle () const
	See GetWindowStyleFlag() for more info.
bool	HasExtraStyle (int exFlag) const
	Returns true if the window has the given exFlag bit set in its extra styles.
bool	HasFlag (int flag) const
	Returns true if the window has the given flag bit set.
virtual void	SetExtraStyle (long exStyle)
	Sets the extra style bits for the window.
virtual void	SetWindowStyleFlag (long style)
	Sets the style of the window.
void	SetWindowStyle (long style)
	See SetWindowStyleFlag() for more info.
bool	ToggleWindowStyle (int flag)
	Turns the given flag on if it's currently turned off and vice versa.
void	MoveAfterInTabOrder (wxWindow *win)
	Moves this window in the tab navigation order after the specified win.
void	MoveBeforeInTabOrder (wxWindow *win)
	Same as MoveAfterInTabOrder() except that it inserts this window just before win instead of putting it right after it.
bool	Navigate (int flags=wxNavigationKeyEvent::IsForward)
	Performs a keyboard navigation action starting from this window.
bool	NavigateIn (int flags=wxNavigationKeyEvent::IsForward)
	Performs a keyboard navigation action inside this window.
virtual void	Lower ()
	Lowers the window to the bottom of the window hierarchy (Z-order).
virtual void	Raise ()
	Raises the window to the top of the window hierarchy (Z-order).
bool	Hide ()
	Equivalent to calling wxWindow::Show(false).
virtual bool	HideWithEffect (wxShowEffect effect, unsigned int timeout=0)
	This function hides a window, like Hide(), but using a special visual effect if possible.
bool	IsEnabled () const
	Returns true if the window is enabled, i.e. if it accepts user input, false otherwise.
bool	IsExposed (int x, int y) const
	Returns true if the given point or rectangle area has been exposed since the last repaint.
bool	IsExposed (wxPoint &pt) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
bool	IsExposed (int x, int y, int w, int h) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
bool	IsExposed (wxRect &rect) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
virtual bool	IsShown () const
	Returns true if the window is shown, false if it has been hidden.
virtual bool	IsShownOnScreen () const
	Returns true if the window is physically visible on the screen, i.e. it is shown and all its parents up to the toplevel window are shown as well.
bool	Disable ()
	Disables the window.
virtual bool	Enable (bool enable=true)
	Enable or disable the window for user input.
virtual bool	Show (bool show=true)
	Shows or hides the window.
virtual bool	ShowWithEffect (wxShowEffect effect, unsigned int timeout=0)
	This function shows a window, like Show(), but using a special visual effect if possible.
wxString	GetHelpText () const
	Gets the help text to be used as context-sensitive help for this window.
void	SetHelpText (const wxString &helpText)
	Sets the help text to be used as context-sensitive help for this window.
virtual wxString	GetHelpTextAtPoint (const wxPoint &point, wxHelpEvent::Origin origin) const
	Gets the help text to be used as context-sensitive help for this window.
wxToolTip *	GetToolTip () const
	Get the associated tooltip or NULL if none.
wxString	GetToolTipText () const
	Get the text of the associated tooltip or empty string if none.
void	SetToolTip (const wxString &tipString)
	Attach a tooltip to the window.
void	SetToolTip (wxToolTip *tip)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void	UnsetToolTip ()
	Unset any existing tooltip.
int	GetPopupMenuSelectionFromUser (wxMenu &menu, const wxPoint &pos=wxDefaultPosition)
	This function shows a popup menu at the given position in this window and returns the selected id.
int	GetPopupMenuSelectionFromUser (wxMenu &menu, int x, int y)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
bool	PopupMenu (wxMenu *menu, const wxPoint &pos=wxDefaultPosition)
	Pops up the given menu at the specified coordinates, relative to this window, and returns control when the user has dismissed the menu.
bool	PopupMenu (wxMenu *menu, int x, int y)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
virtual wxValidator *	GetValidator ()
	Validator functions.
virtual void	SetValidator (const wxValidator &validator)
	Deletes the current validator (if any) and sets the window validator, having called wxValidator::Clone to create a new validator of this type.
virtual bool	TransferDataFromWindow ()
	Transfers values from child controls to data areas specified by their validators.
virtual bool	TransferDataToWindow ()
	Transfers values to child controls from data areas specified by their validators.
virtual bool	Validate ()
	Validates the current values of the child controls using their validators.
wxWindowID	GetId () const
	Returns the identifier of the window.
virtual wxLayoutDirection	GetLayoutDirection () const
	Returns the layout direction for this window, Note that wxLayout_Default is returned if layout direction is not supported.
virtual wxCoord	AdjustForLayoutDirection (wxCoord x, wxCoord width, wxCoord widthTotal) const
	Mirror coordinates for RTL layout if this window uses it and if the mirroring is not done automatically like Win32.
virtual wxString	GetName () const
	Returns the window's name.
wxWindowVariant	GetWindowVariant () const
	Returns the value previously passed to SetWindowVariant().
void	SetId (wxWindowID winid)
	Sets the identifier of the window.
virtual void	SetLayoutDirection (wxLayoutDirection dir)
	Sets the layout direction for this window.
virtual void	SetName (const wxString &name)
	Sets the window's name.
void	SetWindowVariant (wxWindowVariant variant)
	Chooses a different variant of the window display to use.
wxAcceleratorTable *	GetAcceleratorTable ()
	Gets the accelerator table for this window.
wxAccessible *	GetAccessible ()
	Returns the accessible object for this window, if any.
virtual void	SetAcceleratorTable (const wxAcceleratorTable &accel)
	Sets the accelerator table for this window.
void	SetAccessible (wxAccessible *accessible)
	Sets the accessible for this window.
bool	Close (bool force=false)
	This function simply generates a wxCloseEvent whose handler usually tries to close the window.
virtual bool	Destroy ()
	Destroys the window safely.
bool	IsBeingDeleted () const
	Returns true if this window is in process of being destroyed.
virtual wxDropTarget *	GetDropTarget () const
	Returns the associated drop target, which may be NULL.
virtual void	SetDropTarget (wxDropTarget *target)
	Associates a drop target with this window.
virtual void	DragAcceptFiles (bool accept)
	Enables or disables eligibility for drop file events (OnDropFiles).
wxSizer *	GetContainingSizer () const
	Returns the sizer of which this window is a member, if any, otherwise NULL.
wxSizer *	GetSizer () const
	Returns the sizer associated with the window by a previous call to SetSizer(), or NULL.
void	SetSizer (wxSizer *sizer, bool deleteOld=true)
	Sets the window to have the given layout sizer.
void	SetSizerAndFit (wxSizer *sizer, bool deleteOld=true)
	This method calls SetSizer() and then wxSizer::SetSizeHints which sets the initial window size to the size needed to accommodate all sizer elements and sets the size hints which, if this window is a top level one, prevent the user from resizing it to be less than this minimal size.
wxLayoutConstraints *	GetConstraints () const
	Returns a pointer to the window's layout constraints, or NULL if there are none.
void	SetConstraints (wxLayoutConstraints *constraints)
	Sets the window to have the given layout constraints.
virtual bool	Layout ()
	Invokes the constraint-based layout algorithm or the sizer-based algorithm for this window.
void	SetAutoLayout (bool autoLayout)
	Determines whether the Layout() function will be called automatically when the window is resized.
bool	GetAutoLayout () const
	Returns the sizer of which this window is a member, if any, otherwise NULL.
void	CaptureMouse ()
	Directs all mouse input to this window.
wxCaret *	GetCaret () const
	Returns the caret() associated with the window.
const wxCursor &	GetCursor () const
	Return the cursor associated with this window.
virtual bool	HasCapture () const
	Returns true if this window has the current mouse capture.
void	ReleaseMouse ()
	Releases mouse input captured with CaptureMouse().
void	SetCaret (wxCaret *caret)
	Sets the caret() associated with the window.
virtual bool	SetCursor (const wxCursor &cursor)
	Sets the window's cursor.
virtual void	WarpPointer (int x, int y)
	Moves the pointer to the given position on the window.
wxHitTest	HitTest (wxCoord x, wxCoord y) const
	Get the window border style from the given flags: this is different from simply doing flags & wxBORDER_MASK because it uses GetDefaultBorder() to translate wxBORDER_DEFAULT to something reasonable.
wxHitTest	HitTest (const wxPoint &pt) const
	Get the window border style from the given flags: this is different from simply doing flags & wxBORDER_MASK because it uses GetDefaultBorder() to translate wxBORDER_DEFAULT to something reasonable.
wxBorder	GetBorder (long flags) const
	Get the window border style from the given flags: this is different from simply doing flags & wxBORDER_MASK because it uses GetDefaultBorder() to translate wxBORDER_DEFAULT to something reasonable.
wxBorder	GetBorder () const
	Get border for the flags of this window.
virtual void	DoUpdateWindowUI (wxUpdateUIEvent &event)
	Does the window-specific updating after processing the update event.
virtual WXWidget	GetHandle () const
	Returns the platform-specific handle of the physical window.
virtual bool	HasMultiplePages () const
	This method should be overridden to return true if this window has multiple pages.
virtual void	InheritAttributes ()
	This function is (or should be, in case of custom controls) called during window creation to intelligently set up the window visual attributes, that is the font and the foreground and background colours.
virtual void	InitDialog ()
	Sends an wxEVT_INIT_DIALOG event, whose handler usually transfers data to the dialog via validators.
virtual bool	IsDoubleBuffered () const
	Returns true if the window contents is double-buffered by the system, i.e. if any drawing done on the window is really done on a temporary backing surface and transferred to the screen all at once later.
void	SetDoubleBuffered (bool on)
	Turn on or off double buffering of the window if the system supports it.
virtual bool	IsRetained () const
	Returns true if the window is retained, false otherwise.
bool	IsThisEnabled () const
	Returns true if this window is intrinsically enabled, false otherwise, i.e. if Enable() Enable(false) had been called.
virtual bool	IsTopLevel () const
	Returns true if the given window is a top-level one.
virtual void	OnInternalIdle ()
	This virtual function is normally only used internally, but sometimes an application may need it to implement functionality that should not be disabled by an application defining an OnIdle handler in a derived class.
virtual bool	SendIdleEvents (wxIdleEvent &event)
	Send idle event to window and all subwindows.
virtual bool	RegisterHotKey (int hotkeyId, int modifiers, int virtualKeyCode)
	Registers a system wide hotkey.
virtual bool	UnregisterHotKey (int hotkeyId)
	Unregisters a system wide hotkey.
virtual void	UpdateWindowUI (long flags=wxUPDATE_UI_NONE)
	This function sends one or more wxUpdateUIEvent to the window.
Public Member Functions inherited from wxEvtHandler
	wxEvtHandler ()
	Constructor.
virtual	~wxEvtHandler ()
	Destructor.
template<typename T , typename T1 , ... >
void	CallAfter (void(T::*method)(T1,...), T1 x1,...)
	Asynchronously call the given method.
template<typename T >
void	CallAfter (const T &functor)
	Asynchronously call the given functor.
bool	ProcessEventLocally (wxEvent &event)
	Try to process the event in this handler and all those chained to it.
bool	SafelyProcessEvent (wxEvent &event)
	Processes an event by calling ProcessEvent() and handles any exceptions that occur in the process.
void	ProcessPendingEvents ()
	Processes the pending events previously queued using QueueEvent() or AddPendingEvent(); you must call this function only if you are sure there are pending events for this handler, otherwise a wxCHECK will fail.
void	DeletePendingEvents ()
	Deletes all events queued on this event handler using QueueEvent() or AddPendingEvent().
virtual bool	SearchEventTable (wxEventTable &table, wxEvent &event)
	Searches the event table, executing an event handler function if an appropriate one is found.
void	Connect (int id, int lastId, wxEventType eventType, wxObjectEventFunction function, wxObject *userData=NULL, wxEvtHandler *eventSink=NULL)
	Connects the given function dynamically with the event handler, id and event type.
void	Connect (int id, wxEventType eventType, wxObjectEventFunction function, wxObject *userData=NULL, wxEvtHandler *eventSink=NULL)
	See the Connect(int, int, wxEventType, wxObjectEventFunction, wxObject*, wxEvtHandler*) overload for more info.
void	Connect (wxEventType eventType, wxObjectEventFunction function, wxObject *userData=NULL, wxEvtHandler *eventSink=NULL)
	See the Connect(int, int, wxEventType, wxObjectEventFunction, wxObject*, wxEvtHandler*) overload for more info.
bool	Disconnect (wxEventType eventType, wxObjectEventFunction function, wxObject *userData=NULL, wxEvtHandler *eventSink=NULL)
	Disconnects the given function dynamically from the event handler, using the specified parameters as search criteria and returning true if a matching function has been found and removed.
bool	Disconnect (int id=wxID_ANY, wxEventType eventType=wxEVT_NULL, wxObjectEventFunction function=NULL, wxObject *userData=NULL, wxEvtHandler *eventSink=NULL)
	See the Disconnect(wxEventType, wxObjectEventFunction, wxObject*, wxEvtHandler*) overload for more info.
bool	Disconnect (int id, int lastId, wxEventType eventType, wxObjectEventFunction function=NULL, wxObject *userData=NULL, wxEvtHandler *eventSink=NULL)
	See the Disconnect(wxEventType, wxObjectEventFunction, wxObject*, wxEvtHandler*) overload for more info.
template<typename EventTag , typename Functor >
void	Bind (const EventTag &eventType, Functor functor, int id=wxID_ANY, int lastId=wxID_ANY, wxObject *userData=NULL)
	Binds the given function, functor or method dynamically with the event.
template<typename EventTag , typename Class , typename EventArg , typename EventHandler >
void	Bind (const EventTag &eventType, void(Class::*method)(EventArg &), EventHandler *handler, int id=wxID_ANY, int lastId=wxID_ANY, wxObject *userData=NULL)
	See the Bind<>(const EventTag&, Functor, int, int, wxObject*) overload for more info.
template<typename EventTag , typename Functor >
bool	Unbind (const EventTag &eventType, Functor functor, int id=wxID_ANY, int lastId=wxID_ANY, wxObject *userData=NULL)
	Unbinds the given function, functor or method dynamically from the event handler, using the specified parameters as search criteria and returning true if a matching function has been found and removed.
template<typename EventTag , typename Class , typename EventArg , typename EventHandler >
bool	Unbind (const EventTag &eventType, void(Class::*method)(EventArg &), EventHandler *handler, int id=wxID_ANY, int lastId=wxID_ANY, wxObject *userData=NULL)
	See the Unbind<>(const EventTag&, Functor, int, int, wxObject*) overload for more info.
void *	GetClientData () const
	Returns user-supplied client data.
wxClientData *	GetClientObject () const
	Returns a pointer to the user-supplied client data object.
void	SetClientData (void *data)
	Sets user-supplied client data.
void	SetClientObject (wxClientData *data)
	Set the client data object.
bool	GetEvtHandlerEnabled () const
	Returns true if the event handler is enabled, false otherwise.
wxEvtHandler *	GetNextHandler () const
	Returns the pointer to the next handler in the chain.
wxEvtHandler *	GetPreviousHandler () const
	Returns the pointer to the previous handler in the chain.
void	SetEvtHandlerEnabled (bool enabled)
	Enables or disables the event handler.
void	Unlink ()
	Unlinks this event handler from the chain it's part of (if any); then links the "previous" event handler to the "next" one (so that the chain won't be interrupted).
bool	IsUnlinked () const
	Returns true if the next and the previous handler pointers of this event handler instance are NULL.
Public Member Functions inherited from wxObject
	wxObject ()
	Default ctor; initializes to NULL the internal reference data.
	wxObject (const wxObject &other)
	Copy ctor.
virtual	~wxObject ()
	Destructor.
virtual wxClassInfo *	GetClassInfo () const
	This virtual function is redefined for every class that requires run-time type information, when using the wxDECLARE_CLASS macro (or similar).
wxObjectRefData *	GetRefData () const
	Returns the wxObject::m_refData pointer, i.e. the data referenced by this object.
bool	IsKindOf (const wxClassInfo *info) const
	Determines whether this class is a subclass of (or the same class as) the given class.
bool	IsSameAs (const wxObject &obj) const
	Returns true if this object has the same data pointer as obj.
void	Ref (const wxObject &clone)
	Makes this object refer to the data in clone.
void	SetRefData (wxObjectRefData *data)
	Sets the wxObject::m_refData pointer.
void	UnRef ()
	Decrements the reference count in the associated data, and if it is zero, deletes the data.
void	UnShare ()
	This is the same of AllocExclusive() but this method is public.
void	operator delete (void *buf)
	The delete operator is defined for debugging versions of the library only, when the identifier WXDEBUG is defined.
void *	operator new (size_t size, const wxString &filename=NULL, int lineNum=0)
	The new operator is defined for debugging versions of the library only, when the identifier WXDEBUG is defined.

Additional Inherited Members
Static Public Member Functions inherited from wxControl
static wxString	GetLabelText (const wxString &label)
	Returns the given label string without mnemonics ("&" characters).
static wxString	RemoveMnemonics (const wxString &str)
	Returns the given str string without mnemonics ("&" characters).
static wxString	EscapeMnemonics (const wxString &text)
	Escapes the special mnemonics characters ("&") in the given string.
static wxString	Ellipsize (const wxString &label, const wxDC &dc, wxEllipsizeMode mode, int maxWidth, int flags=wxELLIPSIZE_FLAGS_DEFAULT)
	Replaces parts of the label string with ellipsis, if needed, so that it fits into maxWidth pixels if possible.
Protected Member Functions inherited from wxWindow
virtual void	DoCentre (int direction)
	Centres the window.
virtual wxSize	DoGetBestSize () const
	Implementation of GetBestSize() that can be overridden.
virtual wxSize	DoGetBestClientSize () const
	Override this method to return the best size for a custom control.
virtual int	DoGetBestClientHeight (int width) const
	Override this method to implement height-for-width best size calculation.
virtual int	DoGetBestClientWidth (int height) const
	Override this method to implement width-for-height best size calculation.
virtual void	SetInitialBestSize (const wxSize &size)
	Sets the initial window size if none is given (i.e. at least one of the components of the size passed to ctor/Create() is wxDefaultCoord).
void	SendDestroyEvent ()
	Generate wxWindowDestroyEvent for this window.
virtual bool	ProcessEvent (wxEvent &event)
	This function is public in wxEvtHandler but protected in wxWindow because for wxWindows you should always call ProcessEvent() on the pointer returned by GetEventHandler() and not on the wxWindow object itself.
bool	SafelyProcessEvent (wxEvent &event)
	See ProcessEvent() for more info about why you shouldn't use this function and the reason for making this function protected in wxWindow.
virtual void	QueueEvent (wxEvent *event)
	See ProcessEvent() for more info about why you shouldn't use this function and the reason for making this function protected in wxWindow.
virtual void	AddPendingEvent (const wxEvent &event)
	See ProcessEvent() for more info about why you shouldn't use this function and the reason for making this function protected in wxWindow.
void	ProcessPendingEvents ()
	See ProcessEvent() for more info about why you shouldn't use this function and the reason for making this function protected in wxWindow.
bool	ProcessThreadEvent (const wxEvent &event)
	See ProcessEvent() for more info about why you shouldn't use this function and the reason for making this function protected in wxWindow.
Protected Attributes inherited from wxObject
wxObjectRefData *	m_refData
	Pointer to an object which is the object's reference-counted data.

Constructor & Destructor Documentation

wxTreeCtrl::wxTreeCtrl

(

)

Default Constructor.

wxTreeCtrl::wxTreeCtrl	(	wxWindow *	parent,
		wxWindowID	id = wxID_ANY,
		const wxPoint &	pos = wxDefaultPosition,
		const wxSize &	size = wxDefaultSize,
		long	style = wxTR_DEFAULT_STYLE,
		const wxValidator &	validator = wxDefaultValidator,
		const wxString &	name = wxTreeCtrlNameStr
	)

Constructor, creating and showing a tree control.

Parameters

parent	Parent window. Must not be NULL.
id	Window identifier. The value wxID_ANY indicates a default value.
pos	Window position. If wxDefaultPosition is specified then a default position is chosen.
size	Window size. If wxDefaultSize is specified then the window is sized appropriately.
style	Window style. See wxTreeCtrl.
validator	Window validator.
name	Window name.

See Also

Create(), wxValidator

virtual wxTreeCtrl::~wxTreeCtrl ( )

virtual

Destructor, destroying the tree control.

Member Function Documentation

virtual wxTreeItemId wxTreeCtrl::AddRoot ( const wxString &  text, int  image = -1, int  selImage = -1, wxTreeItemData *  data = NULL  )

virtual

Adds the root node to the tree, returning the new item.

The image and selImage parameters are an index within the normal image list specifying the image to use for unselected and selected items, respectively. If image -1 and selImage is -1, the same image is used for both selected and unselected items.

wxTreeItemId wxTreeCtrl::AppendItem	(	const wxTreeItemId &	parent,
		const wxString &	text,
		int	image = -1,
		int	selImage = -1,
		wxTreeItemData *	data = NULL
	)

Appends an item to the end of the branch identified by parent, return a new item id.

The image and selImage parameters are an index within the normal image list specifying the image to use for unselected and selected items, respectively. If image > -1 and selImage is -1, the same image is used for both selected and unselected items.

void wxTreeCtrl::AssignButtonsImageList

(

wxImageList *

imageList

)

Sets the buttons image list.

The button images assigned with this method will be automatically deleted by wxTreeCtrl as appropriate (i.e. it takes ownership of the list).

Setting or assigning the button image list enables the display of image buttons. Once enabled, the only way to disable the display of button images is to set the button image list to NULL.

This function is only available in the generic version.

See Also

SetButtonsImageList().

void wxTreeCtrl::AssignImageList

(

wxImageList *

imageList

)

Sets the normal image list.

The image list assigned with this method will be automatically deleted by wxTreeCtrl as appropriate (i.e. it takes ownership of the list).

See Also

SetImageList().

void wxTreeCtrl::AssignStateImageList

(

wxImageList *

imageList

)

Sets the state image list.

Image list assigned with this method will be automatically deleted by wxTreeCtrl as appropriate (i.e. it takes ownership of the list).

See Also

SetStateImageList().

virtual void wxTreeCtrl::ClearFocusedItem ( )

virtual

Clears the currently focused item.

Since

2.9.1

virtual void wxTreeCtrl::Collapse ( const wxTreeItemId &  item )

virtual

Collapses the given item.

void wxTreeCtrl::CollapseAll

(

)

Collapses the root item.

See Also

ExpandAll()

void wxTreeCtrl::CollapseAllChildren

(

const wxTreeItemId &

item

)

Collapses this item and all of its children, recursively.

See Also

ExpandAllChildren()

virtual void wxTreeCtrl::CollapseAndReset ( const wxTreeItemId &  item )

virtual

Collapses the given item and removes all children.

bool wxTreeCtrl::Create	(	wxWindow *	parent,
		wxWindowID	id = wxID_ANY,
		const wxPoint &	pos = wxDefaultPosition,
		const wxSize &	size = wxDefaultSize,
		long	style = wxTR_DEFAULT_STYLE,
		const wxValidator &	validator = wxDefaultValidator,
		const wxString &	name = wxTreeCtrlNameStr
	)

Creates the tree control.

See wxTreeCtrl::wxTreeCtrl() for further details.

virtual void wxTreeCtrl::Delete ( const wxTreeItemId &  item )

virtual

Deletes the specified item.

A EVT_TREE_DELETE_ITEM event will be generated.

This function may cause a subsequent call to GetNextChild() to fail.

virtual void wxTreeCtrl::DeleteAllItems ( )

virtual

Deletes all items in the control.

Note that this may not generate EVT_TREE_DELETE_ITEM events under some Windows versions although normally such event is generated for each removed item.

virtual void wxTreeCtrl::DeleteChildren ( const wxTreeItemId &  item )

virtual

Deletes all children of the given item (but not the item itself).

Note that this will not generate any events unlike Delete() method.

If you have called SetItemHasChildren(), you may need to call it again since DeleteChildren() does not automatically clear the setting.

virtual wxTextCtrl* wxTreeCtrl::EditLabel ( const wxTreeItemId &  item, wxClassInfo *  textCtrlClass = wxCLASSINFO(wxTextCtrl)  )

virtual

Starts editing the label of the given item.

This function generates a EVT_TREE_BEGIN_LABEL_EDIT event which can be vetoed so that no text control will appear for in-place editing.

If the user changed the label (i.e. s/he does not press ESC or leave the text control without changes, a EVT_TREE_END_LABEL_EDIT event will be sent which can be vetoed as well.

See Also

EndEditLabel(), wxTreeEvent

void wxTreeCtrl::EnableBellOnNoMatch

(

bool

on = true

)

Enable or disable a beep if there is no match for the currently entered text when searching for the item from keyboard.

The default is to not beep in this case except in wxMSW where the beep is always generated by the native control and cannot be disabled, i.e. calls to this function do nothing there.

Since

2.9.5

virtual void wxTreeCtrl::EndEditLabel ( const wxTreeItemId &  item, bool  discardChanges = false  )

virtual

Ends label editing.

If cancelEdit is true, the edit will be cancelled.

Note

This function is currently supported under Windows only.

See Also

EditLabel()

virtual void wxTreeCtrl::EnsureVisible ( const wxTreeItemId &  item )

virtual

Scrolls and/or expands items to ensure that the given item is visible.

virtual void wxTreeCtrl::Expand ( const wxTreeItemId &  item )

virtual

Expands the given item.

void wxTreeCtrl::ExpandAll

(

)

Expands all items in the tree.

void wxTreeCtrl::ExpandAllChildren

(

const wxTreeItemId &

item

)

Expands the given item and all its children recursively.

virtual bool wxTreeCtrl::GetBoundingRect ( const wxTreeItemId &  item, wxRect &  rect, bool  textOnly = false  ) const

virtual

Retrieves the rectangle bounding the item.

If textOnly is true, only the rectangle around the item's label will be returned, otherwise the item's image is also taken into account.

The return value is true if the rectangle was successfully retrieved or false if it was not (in this case rect is not changed) – for example, if the item is currently invisible.

Notice that the rectangle coordinates are logical, not physical ones. So, for example, the x coordinate may be negative if the tree has a horizontal scrollbar and its position is not 0.

wxPerl Note: In wxPerl this method only takes the item and textOnly parameters and returns a Wx::Rect (or undef).

wxImageList* wxTreeCtrl::GetButtonsImageList

(

)

const

Returns the buttons image list (from which application-defined button images are taken).

This function is only available in the generic version.

virtual size_t wxTreeCtrl::GetChildrenCount ( const wxTreeItemId &  item, bool  recursively = true  ) const

virtual

Returns the number of items in the branch.

If recursively is true, returns the total number of descendants, otherwise only one level of children is counted.

virtual unsigned int wxTreeCtrl::GetCount ( ) const

virtual

Returns the number of items in the control.

virtual wxTextCtrl* wxTreeCtrl::GetEditControl ( ) const

virtual

Returns the edit control being currently used to edit a label.

Returns NULL if no label is being edited.

Note

This is currently only implemented for wxMSW.

virtual wxTreeItemId wxTreeCtrl::GetFirstChild ( const wxTreeItemId &  item, wxTreeItemIdValue &  cookie  ) const

virtual

Returns the first child; call GetNextChild() for the next child.

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). The cookie passed to GetFirstChild() and GetNextChild() should be the same variable.

Returns an invalid tree item (i.e. wxTreeItemId::IsOk() returns false) if there are no further children.

wxPerl Note: In wxPerl this method only takes the item parameter, and returns a 2-element list (item, cookie).

See Also

GetNextChild(), GetNextSibling()

virtual wxTreeItemId wxTreeCtrl::GetFirstVisibleItem ( ) const

virtual

Returns the first visible item.

virtual wxTreeItemId wxTreeCtrl::GetFocusedItem ( ) const

virtual

Returns the item last clicked or otherwise selected.

Unlike GetSelection(), it can be used whether or not the control has the wxTR_MULTIPLE style.

Since

2.9.1

wxImageList* wxTreeCtrl::GetImageList

(

)

const

Returns the normal image list.

virtual unsigned int wxTreeCtrl::GetIndent ( ) const

virtual

Returns the current tree control indentation.

virtual wxColour wxTreeCtrl::GetItemBackgroundColour ( const wxTreeItemId &  item ) const

virtual

Returns the background colour of the item.

virtual wxTreeItemData* wxTreeCtrl::GetItemData ( const wxTreeItemId &  item ) const

virtual

Returns the tree item data associated with the item.

See Also

wxTreeItemData

wxPerl Note: wxPerl provides the following shortcut method:

• GetPlData(item): returns the Perl data associated with the Wx::TreeItemData. It is just the same as tree->GetItemData(item)->GetData().

virtual wxFont wxTreeCtrl::GetItemFont ( const wxTreeItemId &  item ) const

virtual

Returns the font of the item label.

If the font hadn't been explicitly set for the specified item with SetItemFont(), returns an invalid wxNullFont font. GetFont() can be used to retrieve the global tree control font used for the items without any specific font.

virtual int wxTreeCtrl::GetItemImage ( const wxTreeItemId &  item, wxTreeItemIcon  which = wxTreeItemIcon_Normal  ) const

virtual

Gets the specified item image.

The value of which may be:

• wxTreeItemIcon_Normal: to get the normal item image.
• wxTreeItemIcon_Selected: to get the selected item image (i.e. the image which is shown when the item is currently selected).
• wxTreeItemIcon_Expanded: to get the expanded image (this only makes sense for items which have children - then this image is shown when the item is expanded and the normal image is shown when it is collapsed).
• wxTreeItemIcon_SelectedExpanded: to get the selected expanded image (which is shown when an expanded item is currently selected).

virtual wxTreeItemId wxTreeCtrl::GetItemParent ( const wxTreeItemId &  item ) const

virtual

Returns the item's parent.

int wxTreeCtrl::GetItemState

(

const wxTreeItemId &

item

)

const

Gets the specified item state.

virtual wxString wxTreeCtrl::GetItemText ( const wxTreeItemId &  item ) const

virtual

Returns the item label.

virtual wxColour wxTreeCtrl::GetItemTextColour ( const wxTreeItemId &  item ) const

virtual

Returns the colour of the item label.

virtual wxTreeItemId wxTreeCtrl::GetLastChild ( const wxTreeItemId &  item ) const

virtual

Returns the last child of the item (or an invalid tree item if this item has no children).

See Also

GetFirstChild(), GetNextSibling(), GetLastChild()

virtual wxTreeItemId wxTreeCtrl::GetNextChild ( const wxTreeItemId &  item, wxTreeItemIdValue &  cookie  ) const

virtual

Returns the next child; call GetFirstChild() for the first child.

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). The cookie passed to GetFirstChild() and GetNextChild() should be the same.

Returns an invalid tree item if there are no further children.

wxPerl Note: In wxPerl this method returns a 2-element list (item, cookie) instead of modifying its parameters.

See Also

GetFirstChild()

virtual wxTreeItemId wxTreeCtrl::GetNextSibling ( const wxTreeItemId &  item ) const

virtual

Returns the next sibling of the specified item; call GetPrevSibling() for the previous sibling.

Returns an invalid tree item if there are no further siblings.

See Also

GetPrevSibling()

virtual wxTreeItemId wxTreeCtrl::GetNextVisible ( const wxTreeItemId &  item ) const

virtual

Returns the next visible item or an invalid item if this item is the last visible one.

Note

The item itself must be visible.

virtual wxTreeItemId wxTreeCtrl::GetPrevSibling ( const wxTreeItemId &  item ) const

virtual

Returns the previous sibling of the specified item; call GetNextSibling() for the next sibling.

Returns an invalid tree item if there are no further children.

See Also

GetNextSibling()

virtual wxTreeItemId wxTreeCtrl::GetPrevVisible ( const wxTreeItemId &  item ) const

virtual

Returns the previous visible item or an invalid item if this item is the first visible one.

Note

The item itself must be visible.

bool wxTreeCtrl::GetQuickBestSize

(

)

const

Returns true if the control will use a quick calculation for the best size, looking only at the first and last items.

The default is false.

See Also

SetQuickBestSize()

virtual wxTreeItemId wxTreeCtrl::GetRootItem ( ) const

virtual

Returns the root item for the tree control.

virtual wxTreeItemId wxTreeCtrl::GetSelection ( ) const

virtual

Returns the selection, or an invalid item if there is no selection.

This function only works with the controls without wxTR_MULTIPLE style, use GetSelections() for the controls which do have this style or, if a single item is wanted, use GetFocusedItem().

virtual size_t wxTreeCtrl::GetSelections ( wxArrayTreeItemIds &  selection ) const

virtual

Fills the array of tree items passed in with the currently selected items.

This function can be called only if the control has the wxTR_MULTIPLE style.

Returns the number of selected items.

wxPerl Note: In wxPerl this method takes no parameters and returns a list of Wx::TreeItemId.

wxImageList* wxTreeCtrl::GetStateImageList

(

)

const

Returns the state image list (from which application-defined state images are taken).

wxTreeItemId wxTreeCtrl::HitTest	(	const wxPoint &	point,
		int &	flags
	)		const

Calculates which (if any) item is under the given point, returning the tree item id at this point plus extra information flags.

flags is a bitlist of the following:

• wxTREE_HITTEST_ABOVE: Above the client area.
• wxTREE_HITTEST_BELOW: Below the client area.
• wxTREE_HITTEST_NOWHERE: In the client area but below the last item.
• wxTREE_HITTEST_ONITEMBUTTON: On the button associated with an item.
• wxTREE_HITTEST_ONITEMICON: On the bitmap associated with an item.
• wxTREE_HITTEST_ONITEMINDENT: In the indentation associated with an item.
• wxTREE_HITTEST_ONITEMLABEL: On the label (string) associated with an item.
• wxTREE_HITTEST_ONITEMRIGHT: In the area to the right of an item.
• wxTREE_HITTEST_ONITEMSTATEICON: On the state icon for a tree view item that is in a user-defined state.
• wxTREE_HITTEST_TOLEFT: To the right of the client area.
• wxTREE_HITTEST_TORIGHT: To the left of the client area.

wxPerl Note: In wxPerl this method only takes the point parameter and returns a 2-element list (item, flags).

wxTreeItemId wxTreeCtrl::InsertItem	(	const wxTreeItemId &	parent,
		const wxTreeItemId &	previous,
		const wxString &	text,
		int	image = -1,
		int	selImage = -1,
		wxTreeItemData *	data = NULL
	)

Inserts an item after a given one (previous).

The image and selImage parameters are an index within the normal image list specifying the image to use for unselected and selected items, respectively. If image -1 and selImage is -1, the same image is used for both selected and unselected items.

wxTreeItemId wxTreeCtrl::InsertItem	(	const wxTreeItemId &	parent,
		size_t	pos,
		const wxString &	text,
		int	image = -1,
		int	selImage = -1,
		wxTreeItemData *	data = NULL
	)

Inserts an item before one identified by its position (pos).

pos must be less than or equal to the number of children.

The image and selImage parameters are an index within the normal image list specifying the image to use for unselected and selected items, respectively. If image -1 and selImage is -1, the same image is used for both selected and unselected items.

virtual bool wxTreeCtrl::IsBold ( const wxTreeItemId &  item ) const

virtual

Returns true if the given item is in bold state.

See Also

SetItemBold()

bool wxTreeCtrl::IsEmpty

(

)

const

Returns true if the control is empty (i.e. has no items, even no root one).

virtual bool wxTreeCtrl::IsExpanded ( const wxTreeItemId &  item ) const

virtual

Returns true if the item is expanded (only makes sense if it has children).

virtual bool wxTreeCtrl::IsSelected ( const wxTreeItemId &  item ) const

virtual

Returns true if the item is selected.

virtual bool wxTreeCtrl::IsVisible ( const wxTreeItemId &  item ) const

virtual

Returns true if the item is visible on the screen.

virtual bool wxTreeCtrl::ItemHasChildren ( const wxTreeItemId &  item ) const

virtual

Returns true if the item has children.

virtual int wxTreeCtrl::OnCompareItems ( const wxTreeItemId &  item1, const wxTreeItemId &  item2  )

virtual

Override this function in the derived class to change the sort order of the items in the tree control.

The function should return a negative, zero or positive value if the first item is less than, equal to or greater than the second one.

Please note that you must use wxRTTI macros wxDECLARE_DYNAMIC_CLASS() and wxIMPLEMENT_DYNAMIC_CLASS() if you override this function because otherwise the base class considers that it is not overridden and uses the default comparison, i.e. sorts the items alphabetically, which allows it optimize away the calls to the virtual function completely.

See Also

SortChildren()

wxTreeItemId wxTreeCtrl::PrependItem	(	const wxTreeItemId &	parent,
		const wxString &	text,
		int	image = -1,
		int	selImage = -1,
		wxTreeItemData *	data = NULL
	)

Appends an item as the first child of parent, return a new item id.

The image and selImage parameters are an index within the normal image list specifying the image to use for unselected and selected items, respectively. If image -1 and selImage is -1, the same image is used for both selected and unselected items.

virtual void wxTreeCtrl::ScrollTo ( const wxTreeItemId &  item )

virtual

Scrolls the specified item into view.

virtual void wxTreeCtrl::SelectChildren ( const wxTreeItemId &  parent )

virtual

Select all the immediate children of the given parent.

This function can be used with multiselection controls only.

Since

2.9.1

virtual void wxTreeCtrl::SelectItem ( const wxTreeItemId &  item, bool  select = true  )

virtual

Selects the given item.

In multiple selection controls, can be also used to deselect a currently selected item if the value of select is false.

Notice that calling this method will generate wxEVT_TREE_SEL_CHANGING and wxEVT_TREE_SEL_CHANGED events and that the change could be vetoed by the former event handler.

void wxTreeCtrl::SetButtonsImageList

(

wxImageList *

imageList

)

Sets the buttons image list (from which application-defined button images are taken).

The button images assigned with this method will not be deleted by wxTreeCtrl's destructor, you must delete it yourself. Setting or assigning the button image list enables the display of image buttons. Once enabled, the only way to disable the display of button images is to set the button image list to NULL.

Note

This function is only available in the generic version.

See Also

AssignButtonsImageList().

virtual void wxTreeCtrl::SetFocusedItem ( const wxTreeItemId &  item )

virtual

Sets the currently focused item.

Parameters

item	The item to make the current one. It must be valid.

Since

2.9.1

virtual void wxTreeCtrl::SetImageList ( wxImageList *  imageList )

virtual

Sets the normal image list.

The image list assigned with this method will not be deleted by wxTreeCtrl's destructor, you must delete it yourself.

See Also

AssignImageList().

virtual void wxTreeCtrl::SetIndent ( unsigned int  indent )

virtual

Sets the indentation for the tree control.

virtual void wxTreeCtrl::SetItemBackgroundColour ( const wxTreeItemId &  item, const wxColour &  col  )

virtual

Sets the colour of the item's background.

virtual void wxTreeCtrl::SetItemBold ( const wxTreeItemId &  item, bool  bold = true  )

virtual

Makes item appear in bold font if bold parameter is true or resets it to the normal state.

See Also

IsBold()

virtual void wxTreeCtrl::SetItemData ( const wxTreeItemId &  item, wxTreeItemData *  data  )

virtual

Sets the item client data.

Notice that the client data previously associated with the item (if any) is not freed by this function and so calling this function multiple times for the same item will result in memory leaks unless you delete the old item data pointer yourself.

wxPerl Note: wxPerl provides the following shortcut method:

• SetPlData(item, data): sets the Perl data associated with the Wx::TreeItemData. It is just the same as tree->GetItemData(item)->SetData(data).

virtual void wxTreeCtrl::SetItemDropHighlight ( const wxTreeItemId &  item, bool  highlight = true  )

virtual

Gives the item the visual feedback for Drag'n'Drop actions, which is useful if something is dragged from the outside onto the tree control (as opposed to a DnD operation within the tree control, which already is implemented internally).

virtual void wxTreeCtrl::SetItemFont ( const wxTreeItemId &  item, const wxFont &  font  )

virtual

Sets the item's font.

All items in the tree should have the same height to avoid text clipping, so the fonts height should be the same for all of them, although font attributes may vary.

See Also

SetItemBold()

virtual void wxTreeCtrl::SetItemHasChildren ( const wxTreeItemId &  item, bool  hasChildren = true  )

virtual

Force appearance of the button next to the item.

This is useful to allow the user to expand the items which don't have any children now, but instead adding them only when needed, thus minimizing memory usage and loading time.

virtual void wxTreeCtrl::SetItemImage ( const wxTreeItemId &  item, int  image, wxTreeItemIcon  which = wxTreeItemIcon_Normal  )

virtual

Sets the specified item's image.

See GetItemImage() for the description of the which parameter.

void wxTreeCtrl::SetItemState	(	const wxTreeItemId &	item,
		int	state
	)

Sets the specified item state.

The value of state may be:

• wxTREE_ITEMSTATE_NONE: to disable the item state (the state image will be not displayed).
• wxTREE_ITEMSTATE_NEXT: to set the next item state.
• wxTREE_ITEMSTATE_PREV: to set the previous item state.

virtual void wxTreeCtrl::SetItemText ( const wxTreeItemId &  item, const wxString &  text  )

virtual

Sets the item label.

virtual void wxTreeCtrl::SetItemTextColour ( const wxTreeItemId &  item, const wxColour &  col  )

virtual

Sets the colour of the item's text.

void wxTreeCtrl::SetQuickBestSize

(

bool

quickBestSize

)

If true is passed, specifies that the control will use a quick calculation for the best size, looking only at the first and last items.

Otherwise, it will look at all items. The default is false.

See Also

GetQuickBestSize()

virtual void wxTreeCtrl::SetStateImageList ( wxImageList *  imageList )

virtual

Sets the state image list (from which application-defined state images are taken).

Image list assigned with this method will not be deleted by wxTreeCtrl's destructor, you must delete it yourself.

See Also

AssignStateImageList().

void wxTreeCtrl::SetWindowStyle

(

long

styles

)

Sets the mode flags associated with the display of the tree control.

The new mode takes effect immediately.

Note

Generic only; MSW ignores changes.

virtual void wxTreeCtrl::SortChildren ( const wxTreeItemId &  item )

virtual

Sorts the children of the given item using OnCompareItems().

You should override that method to change the sort order (the default is ascending case-sensitive alphabetical order).

See Also

wxTreeItemData, OnCompareItems()

virtual void wxTreeCtrl::Toggle ( const wxTreeItemId &  item )

virtual

Toggles the given item between collapsed and expanded states.

void wxTreeCtrl::ToggleItemSelection

(

const wxTreeItemId &

item

)

Toggles the given item between selected and unselected states.

For multiselection controls only.

virtual void wxTreeCtrl::Unselect ( )

virtual

Removes the selection from the currently selected item (if any).

virtual void wxTreeCtrl::UnselectAll ( )

virtual

This function either behaves the same as Unselect() if the control doesn't have wxTR_MULTIPLE style, or removes the selection from all items if it does have this style.

void wxTreeCtrl::UnselectItem

(

const wxTreeItemId &

item

)

Unselects the given item.

This works in multiselection controls only.