wxpython CustomTreeCtrl / 憋错料

转自 http://xoomer.virgilio.it/infinity77/Phoenix/lib.agw.customtreectrl.CustomTreeCtrl.html这个网址中有许多控件的讲解

CustomTreeCtrl is a class that mimics the behaviour of TreeCtrl, with almost the same base functionalities plus some more enhancements. This class does not rely on the native control, as it is a full owner-drawn tree control.

Inheritance Diagram

Inheritance diagram for class CustomTreeCtrl

Control Appearance

wxMSW

wxMAC

wxGTK

Known Superclasses

PyScrolledWindow

Methods Summary

`__init__`	Default class constructor.
`AcceptsFocus`	Can this window be given focus by mouse click?
`AddRoot`	Adds a root item to the `CustomTreeCtrl`.
`AdjustMyScrollbars`	Internal method used to adjust the `PyScrolledWindow` scrollbars.
`AppendItem`	Appends an item as a last child of its parent.
`AppendSeparator`	Appends an horizontal line separator as a last child of its parent.
`AssignButtonsImageList`	Assigns the button image list.
`AssignImageList`	Assigns the normal image list.
`AssignLeftImageList`	Assigns the image list for `CustomTreeCtrl` filled with images to be used on
`AssignStateImageList`	Assigns the state image list.
`AutoCheckChild`	Transverses the tree and checks/unchecks the items.
`AutoCheckParent`	Traverses up the tree and checks/unchecks parent items.
`AutoToggleChild`	Transverses the tree and toggles the items.
`CalculateLevel`	Calculates the level of an item inside the tree hierarchy.
`CalculateLineHeight`	Calculates the height of a line.
`CalculatePositions`	Calculates all the positions of the visible items.
`CalculateSize`	Calculates overall position and size of an item.
`CheckChilds`	Programatically check/uncheck item children.
`CheckItem`	Actually checks/uncheks an item, sending (eventually) the two
`CheckItem2`	Used internally to avoid `EVT_TREE_ITEM_CHECKED` events.
`CheckSameLevel`	Uncheck radio items which are on the same level of the checked one.
`ChildrenClosing`	We are about to destroy the item children.
`Collapse`	Collapse an item, sending a `EVT_TREE_ITEM_COLLAPSING` and
`CollapseAndReset`	Collapse the given item and deletes its children.
`Delete`	Deletes an item.
`DeleteAllItems`	Deletes all items in the `CustomTreeCtrl`.
`DeleteChildren`	Delete all the item’s children.
`DeleteItemWindow`	Deletes the window associated to an item (if any).
`DoGetBestSize`	Gets the size which best suits the window: for a control, it would be the
`DoInsertItem`	Actually inserts an item in the tree.
`DoSelectItem`	Actually selects/unselects an item, sending `EVT_TREE_SEL_CHANGING` and
`DrawHorizontalGradient`	Gradient fill from colour 1 to colour 2 from left to right.
`DrawVerticalGradient`	Gradient fill from colour 1 to colour 2 from top to bottom.
`DrawVistaRectangle`	Draws the selected item(s) with the Windows Vista style.
`Edit`	Internal function. Starts the editing of an item label, sending a
`EditLabel`	Starts editing an item label.
`EnableChildren`	Enables/disables the item children.
`EnableItem`	Enables/disables an item.
`EnableSelectionGradient`	Globally enables/disables drawing of gradient selections.
`EnableSelectionVista`	Globally enables/disables drawing of Windows Vista selections.
`EnsureVisible`	Scrolls and/or expands items to ensure that the given item is visible.
`Expand`	Expands an item, sending a `EVT_TREE_ITEM_EXPANDING` and
`ExpandAll`	Expands all `CustomTreeCtrl` items.
`ExpandAllChildren`	Expands all the items children of the input item.
`FillArray`	Internal function. Used to populate an array of selected items when
`FindItem`	Finds the first item starting with the given prefix after the given parent.
`Freeze`	Freeze `CustomTreeCtrl`.
`GetAGWWindowStyleFlag`	Returns the `CustomTreeCtrl` style.
`GetBackgroundImage`	Returns the `CustomTreeCtrl` background image (if any).
`GetBorderPen`	Returns the pen used to draw the selected item border.
`GetBoundingRect`	Retrieves the rectangle bounding the item.
`GetButtonsImageList`	Returns the buttons image list associated with `CustomTreeCtrl` (from
`GetChildrenCount`	Returns the item children count.
`GetClassDefaultAttributes`	Returns the default font and colours which are used by the control. This is
`GetConnectionPen`	Returns the pen used to draw the connecting lines between items.
`GetControlBmp`	Returns a native looking checkbox or radio button bitmap.
`GetCount`	Returns the global number of items in the tree.
`GetDisabledColour`	Returns the colour for items in a disabled state.
`GetEditControl`	Returns a pointer to the edit `TreeTextCtrl` if the item is being edited or
`GetFirstChild`	Returns the item’s first child and an integer value ‘cookie’.
`GetFirstGradientColour`	Returns the first gradient colour for gradient-style selections.
`GetFirstVisibleItem`	Returns the first visible item.
`GetGradientStyle`	Returns the gradient style for gradient-style selections.
`GetHilightFocusColour`	Returns the colour used to highlight focused selected items.
`GetHilightNonFocusColour`	Returns the colour used to highlight unfocused selected items.
`GetHyperTextFont`	Returns the font used to render hypertext items.
`GetHyperTextNewColour`	Returns the colour used to render a non-visited hypertext item.
`GetHyperTextVisitedColour`	Returns the colour used to render a visited hypertext item.
`GetImageList`	Returns the normal image list associated with `CustomTreeCtrl`.
`GetImageListCheck`	Returns the image list used to build the check/radio buttons in `CustomTreeCtrl`.
`GetIndent`	Returns the item indentation, in pixels.
`GetItem3StateValue`	Gets the state of a 3-state checkbox item.
`GetItemBackgroundColour`	Returns the item background colour.
`GetItemFont`	Returns the item font.
`GetItemImage`	Returns the item image.
`GetItemLeftImage`	Returns the item leftmost image, i.e. the image associated to the item on the leftmost
`GetItemParent`	Returns the item parent (can be `None` for root items).
`GetItemSize`	Returns the horizontal space available in `CustomTreeCtrl`, in pixels, to draw this item.
`GetItemText`	Returns the item text.
`GetItemTextColour`	Returns the item text colour or separator horizontal line colour.
`GetItemType`	Returns the item type.
`GetItemVisited`	Returns whether an hypertext item was visited.
`GetItemWindow`	Returns the window associated to the item (if any).
`GetItemWindowEnabled`	Returns whether the window associated to the item is enabled.
`GetLastChild`	Returns the item last child.
`GetLeftImageList`	Returns the image list for `CustomTreeCtrl` filled with images to be used on
`GetLineHeight`	Returns the line height for the given item.
`GetMaxWidth`	Returns the maximum width of the `CustomTreeCtrl`.
`GetNext`	Returns the next item. Only for internal use right now.
`GetNextActiveItem`	Returns the next active item. Used Internally at present.
`GetNextChild`	Returns the item’s next child.
`GetNextExpanded`	Returns the next expanded item after the input one.
`GetNextSibling`	Returns the next sibling of an item.
`GetNextVisible`	Returns the next visible item.
`GetPrev`	Returns the previous item. Only for internal use right now.
`GetPrevExpanded`	Returns the previous expanded item before the input one.
`GetPrevSibling`	Returns the previous sibling of an item.
`GetPrevVisible`	Returns the previous visible item.
`GetPyData`	Returns the data associated to an item.
`GetRootItem`	Returns the root item, an instance of `GenericTreeItem`.
`GetSecondGradientColour`	Returns the second gradient colour for gradient-style selections.
`GetSelection`	Returns the current selection.
`GetSelections`	Returns a list of selected items.
`GetSeparatorColour`	Returns the pen colour for separator-type items.
`GetSpacing`	Returns the spacing between the start and the text, in pixels.
`GetStateImageList`	Returns the state image list associated with `CustomTreeCtrl` (from which
`HandleHyperLink`	Handles the hyperlink items, sending the `EVT_TREE_ITEM_HYPERLINK` event.
`HasAGWFlag`	Returns `True` if `CustomTreeCtrl` has the flag bit set.
`HasButtons`	Returns whether `CustomTreeCtrl` has the `TR_HAS_BUTTONS` flag set.
`HasChildren`	Returns whether an item has children or not.
`HideWindows`	Hides the windows associated to the items. Used internally.
`HitTest`	Calculates which (if any) item is under the given point, returning the tree item
`InsertItem`	Inserts an item after the given previous.
`InsertItemByIndex`	Inserts an item after the given previous.
`InsertItemByItem`	Inserts an item after the given previous.
`InsertSeparator`	Inserts a separator item after the given previous.
`IsBold`	Returns whether the item font is bold or not.
`IsDescendantOf`	Checks if the given item is under another one in the tree hierarchy.
`IsExpanded`	Returns whether the item is expanded or not.
`IsItalic`	Returns whether the item font is italic or not.
`IsItem3State`	Returns whether or not the checkbox item is a 3-state checkbox.
`IsItemChecked`	Returns whether an item is checked or not.
`IsItemEnabled`	Returns whether an item is enabled or disabled.
`IsItemHyperText`	Returns whether an item is hypertext or not.
`IsItemSeparator`	Returns whether an item is of separator type or not.
`IsSelected`	Returns whether the item is selected or not.
`IsVisible`	Returns whether the item is visible or not (i.e., its hierarchy is expanded
`ItemHasChildren`	Returns whether the item has children or not.
`OnAcceptEdit`	Called by `TreeTextCtrl`, to accept the changes and to send the
`OnCancelEdit`	Called by `TreeTextCtrl`, to cancel the changes and to send the
`OnCompareItems`	Returns whether 2 items have the same text.
`OnDestroy`	Handles the `EVT_WINDOW_DESTROY` event for `CustomTreeCtrl`.
`OnEditTimer`	The timer for editing has expired. Start editing.
`OnEraseBackground`	Handles the `EVT_ERASE_BACKGROUND` event for `CustomTreeCtrl`.
`OnGetToolTip`	Process the tooltip event, to speed up event processing. Does not actually
`OnInternalIdle`	This method is normally only used internally, but sometimes an application
`OnKeyDown`	Handles the `EVT_KEY_DOWN` event for `CustomTreeCtrl`, sending a
`OnKillFocus`	Handles the `EVT_KILL_FOCUS` event for `CustomTreeCtrl`.
`OnMouse`	Handles a bunch of `EVT_MOUSE_EVENTS` events for `CustomTreeCtrl`.
`OnPaint`	Handles the `EVT_PAINT` event for `CustomTreeCtrl`.
`OnSetFocus`	Handles the `EVT_SET_FOCUS` event for `CustomTreeCtrl`.
`OnSize`	Handles the `EVT_SIZE` event for `CustomTreeCtrl`.
`PaintItem`	Actually draws an item.
`PaintLevel`	Paint a level in the hierarchy of `CustomTreeCtrl`.
`PrependItem`	Prepends an item as a first child of parent.
`PrependSeparator`	Prepends a separator item as a first child of parent.
`RecurseOnChildren`	Recurses over all the children of the spcified items, calculating their
`RefreshItemWithWindows`	Refreshes the items with which a window is associated.
`RefreshLine`	Refreshes a damaged item line.
`RefreshSelected`	Refreshes a damaged selected item line.
`RefreshSelectedUnder`	Refreshes the selected items under the given item.
`RefreshSubtree`	Refreshes a damaged subtree of an item.
`ResetEditControl`	Called by `TreeTextCtrl` when it marks itself for deletion.
`ScrollTo`	Scrolls the specified item into view.
`SelectAll`	Selects all the item in the tree.
`SelectAllChildren`	Selects all the children of the given item.
`SelectItem`	Selects/deselects an item.
`SelectItemRange`	Selects all the items between item1 and item2.
`SendDeleteEvent`	Actually sends the `EVT_TREE_DELETE_ITEM` event.
`SetAGWWindowStyleFlag`	Sets the `CustomTreeCtrl` window style.
`SetBackgroundColour`	Changes the background colour of `CustomTreeCtrl`.
`SetBackgroundImage`	Sets the `CustomTreeCtrl` background image.
`SetBorderPen`	Sets the pen used to draw the selected item border.
`SetButtonsImageList`	Sets the buttons image list for `CustomTreeCtrl` (from which application-defined
`SetConnectionPen`	Sets the pen used to draw the connecting lines between items.
`SetDisabledColour`	Sets the colour for items in a disabled state.
`SetFirstGradientColour`	Sets the first gradient colour for gradient-style selections.
`SetFont`	Sets the `CustomTreeCtrl` font.
`SetForegroundColour`	Changes the foreground colour of `CustomTreeCtrl`.
`SetGradientStyle`	Sets the gradient style for gradient-style selections.
`SetHilightFocusColour`	Sets the colour used to highlight focused selected items.
`SetHilightNonFocusColour`	Sets the colour used to highlight unfocused selected items.
`SetHyperTextFont`	Sets the font used to render hypertext items.
`SetHyperTextNewColour`	Sets the colour used to render a non-visited hypertext item.
`SetHyperTextVisitedColour`	Sets the colour used to render a visited hypertext item.
`SetImageList`	Sets the normal image list for `CustomTreeCtrl`.
`SetImageListCheck`	Sets the checkbox/radiobutton image list.
`SetIndent`	Sets the indentation for `CustomTreeCtrl`.
`SetItem3State`	Sets whether the item has a 3-state value checkbox assigned to it or not.
`SetItem3StateValue`	Sets the checkbox item to the given state.
`SetItemBackgroundColour`	Sets the item background colour.
`SetItemBold`	Sets the item font as bold/unbold.
`SetItemDropHighlight`	Gives the item the visual feedback for drag and drop operations.
`SetItemFont`	Sets the item font.
`SetItemHasChildren`	Forces the appearance/disappearance of the button next to the item.
`SetItemHyperText`	Sets whether the item is hypertext or not.
`SetItemImage`	Sets the item image, depending on the item state.
`SetItemItalic`	Sets the item font as italic/non-italic.
`SetItemLeftImage`	Sets the item leftmost image, i.e. the image associated to the item on the leftmost
`SetItemText`	Sets the item text.
`SetItemTextColour`	Sets the item text colour or separator horizontal line colour.
`SetItemType`	Sets the item type.
`SetItemVisited`	Sets whether an hypertext item was visited.
`SetItemWindow`	Sets the window for the given item.
`SetItemWindowEnabled`	Enables/disables the window associated to the item.
`SetLeftImageList`	Sets the image list for `CustomTreeCtrl` filled with images to be used on
`SetPyData`	Sets the data associated to an item.
`SetSecondGradientColour`	Sets the second gradient colour for gradient-style selections.
`SetSeparatorColour`	Sets the pen colour for separator-type items.
`SetSpacing`	Sets the spacing between items in `CustomTreeCtrl`.
`SetStateImageList`	Sets the state image list for `CustomTreeCtrl` (from which application-defined
`ShouldInheritColours`	Return `True` from here to allow the colours of this window to be
`SortChildren`	Sorts the children of the given item using the `OnCompareItems` method of
`TagAllChildrenUntilLast`	Used internally.
`TagNextChildren`	Used internally.
`Thaw`	Thaw `CustomTreeCtrl`.
`TileBackground`	Tiles the background image to fill all the available area.
`Toggle`	Toggles the item state (collapsed/expanded).
`ToggleItemSelection`	Toggles the item selection.
`UnCheckRadioParent`	Used internally to handle radio node parent correctly.
`Unselect`	Unselects the current selection.
`UnselectAll`	Unselect all the items.
`UnselectAllChildren`	Unselects all the children of the given item.

Class API

class CustomTreeCtrl(PyScrolledWindow)

Methods

__init__(self, parent, id=ID_ANY, pos=DefaultPosition, size=DefaultSize, style=0, agwStyle=TR_DEFAULT_STYLE, validator=DefaultValidator, name="CustomTreeCtrl")

Default class constructor.

Parameters:

parent (Window) – parent window. Must not be None;
id (integer) – window identifier. A value of -1 indicates a default value;
pos (tuple or Point) – the control position. A value of (-1, -1) indicates a default position, chosen by either the windowing system or wxPython, depending on platform;
size (tuple or Size) – the control size. A value of (-1, -1) indicates a default size, chosen by either the windowing system or wxPython, depending on platform;
style (integer) – the underlying PyScrolledWindow style;

agwStyle (integer) – the AGW-specific window style for CustomTreeCtrl. It can be a combination of the following bits:

Window Styles	Hex Value	Description
`TR_NO_BUTTONS`	0x0	For convenience to document that no buttons are to be drawn.
`TR_SINGLE`	0x0	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.
`TR_HAS_BUTTONS`	0x1	Use this style to show + and - buttons to the left of parent items.
`TR_NO_LINES`	0x4	Use this style to hide vertical level connectors.
`TR_LINES_AT_ROOT`	0x8	Use this style to show lines between root nodes. Only applicable if `TR_HIDE_ROOT` is set and `TR_NO_LINES` is not set.
`TR_DEFAULT_STYLE`	0x9	The set of flags that are closest to the defaults for the native control for a particular toolkit.
`TR_TWIST_BUTTONS`	0x10	Use old Mac-twist style buttons.
`TR_MULTIPLE`	0x20	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.
`TR_EXTENDED`	0x40	Use this style to allow disjoint items to be selected. (Only partially implemented; may not work in all cases).
`TR_HAS_VARIABLE_ROW_HEIGHT`	0x80	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.
`TR_EDIT_LABELS`	0x200	Use this style if you wish the user to be able to edit labels in the tree control.
`TR_ROW_LINES`	0x400	Use this style to draw a contrasting border between displayed rows.
`TR_HIDE_ROOT`	0x800	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.
`TR_FULL_ROW_HIGHLIGHT`	0x2000	Use this style to have the background colour and the selection highlight extend over the entire horizontal row of the tree control window.
`TR_AUTO_CHECK_CHILD`	0x4000	Only meaningful foe checkbox-type items: when a parent item is checked/unchecked its children are checked/unchecked as well.
`TR_AUTO_TOGGLE_CHILD`	0x8000	Only meaningful foe checkbox-type items: when a parent item is checked/unchecked its children are toggled accordingly.
`TR_AUTO_CHECK_PARENT`	0x10000	Only meaningful foe checkbox-type items: when a child item is checked/unchecked its parent item is checked/unchecked as well.
`TR_ALIGN_WINDOWS`	0x20000	Flag used to align windows (in items with windows) at the same horizontal position.
`TR_ALIGN_WINDOWS_RIGHT`	0x40000	Flag used to align windows (in items with windows) to the rightmost edge of `CustomTreeCtrl`.
`TR_ELLIPSIZE_LONG_ITEMS`	0x80000	Flag used to ellipsize long items when the horizontal space for `CustomTreeCtrl` is low.
`TR_TOOLTIP_ON_LONG_ITEMS`	0x100000	Flag used to show tooltips on long items when the horizontal space for `CustomTreeCtrl` is low.

validator (Validator) – window validator;
name (string) – window name.

AcceptsFocus(self)

Can this window be given focus by mouse click?

Note

This method always returns True as we always accept focus from mouse click.

Note

Overridden from PyScrolledWindow.

AddRoot(self, text, ct_type=0, wnd=None, image=-1, selImage=-1, data=None)

Adds a root item to the CustomTreeCtrl.

Parameters:

Parameters:	text (string) – the item text label; ct_type (integer) – the item type (see `SetItemType` for a list of valid item types); wnd – if not `None`, a non-toplevel window to show next to the item, any subclass of `Window` except top-level windows; image (integer) – an index within the normal image list specifying the image to use for the item in unselected state; selImage (integer) – an index within the normal image list specifying the image to use for the item in selected state; if image > -1 and selImage is -1, the same image is used for both selected and unselected items; data (object) – associate the given Python object data with the item.
Returns:	An instance of `GenericTreeItem` upon successful insertion.
Raise :	Exception in the following cases: There already is a root item in the tree; The item window is not `None` but the `TR_HAS_VARIABLE_ROW_HEIGHT` flag has not been set for `CustomTreeCtrl`; The item has multiline text (with line-breaks in it) but the `TR_HAS_VARIABLE_ROW_HEIGHT` flag has not been set for `CustomTreeCtrl`; The ct_type attribute is less than `0` or greater than `2`.

text (string) – the item text label;
ct_type (integer) – the item type (see SetItemType for a list of valid item types);
wnd – if not None, a non-toplevel window to show next to the item, any subclass of Window except top-level windows;
image (integer) – an index within the normal image list specifying the image to use for the item in unselected state;
selImage (integer) – an index within the normal image list specifying the image to use for the item in selected state; if image > -1 and selImage is -1, the same image is used for both selected and unselected items;
data (object) – associate the given Python object data with the item.

Returns:

An instance of GenericTreeItem upon successful insertion.

Raise :

Exception in the following cases:

There already is a root item in the tree;
The item window is not None but the TR_HAS_VARIABLE_ROW_HEIGHT flag has not been set for CustomTreeCtrl;
The item has multiline text (with line-breaks in it) but the TR_HAS_VARIABLE_ROW_HEIGHT flag has not been set for CustomTreeCtrl;
The ct_type attribute is less than 0 or greater than 2.

Warning

Only one root is allowed to exist in any given instance of CustomTreeCtrl.

AdjustMyScrollbars(self): Internal method used to adjust the PyScrolledWindow scrollbars.

AppendItem(self, parentId, text, ct_type=0, wnd=None, image=-1, selImage=-1, data=None)

Appends an item as a last child of its parent.

Parameters:

Parameters:	parentId – an instance of `GenericTreeItem` representing the item’s parent; text (string) – the item text label; ct_type (integer) – the item type (see `SetItemType` for a list of valid item types); wnd – if not `None`, a non-toplevel window to show next to the item, any subclass of `Window`; image (integer) – an index within the normal image list specifying the image to use for the item in unselected state; selImage (integer) – an index within the normal image list specifying the image to use for the item in selected state; if image > -1 and selImage is -1, the same image is used for both selected and unselected items; data (object) – associate the given Python object data with the item.
Returns:	An instance of `GenericTreeItem` upon successful insertion.

parentId – an instance of GenericTreeItem representing the item’s parent;
text (string) – the item text label;
ct_type (integer) – the item type (see SetItemType for a list of valid item types);
wnd – if not None, a non-toplevel window to show next to the item, any subclass of Window;
image (integer) – an index within the normal image list specifying the image to use for the item in unselected state;
selImage (integer) – an index within the normal image list specifying the image to use for the item in selected state; if image > -1 and selImage is -1, the same image is used for both selected and unselected items;
data (object) – associate the given Python object data with the item.

Returns:

An instance of GenericTreeItem upon successful insertion.

See also

DoInsertItem for possible exceptions generated by this method.

AppendSeparator(self, parentId)

Appends an horizontal line separator as a last child of its parent.

Parameters:	parentId – an instance of `GenericTreeItem` representing the separator’s parent.
Returns:	An instance of `GenericTreeItem` upon successful insertion.

See also

DoInsertItem for possible exceptions generated by this method.

AssignButtonsImageList(self, imageList)

Assigns the button image list.

Parameters:	imageList – an instance of `ImageList`.

AssignImageList(self, imageList)

Assigns the normal image list.

Parameters:	imageList – an instance of `ImageList`.

AssignLeftImageList(self, imageList)

Assigns the image list for CustomTreeCtrl filled with images to be used on the leftmost part of the client area. Any item can have a leftmost image associated with it.

Parameters:	imageList – an instance of `ImageList`.

AssignStateImageList(self, imageList)

Assigns the state image list.

Parameters:	imageList – an instance of `ImageList`.

AutoCheckChild(self, item, checked)

Transverses the tree and checks/unchecks the items.

Parameters:	item – an instance of `GenericTreeItem`; checked (bool) – `True` to check an item, `False` to uncheck it.

Note

This method is meaningful only for checkbox-like and radiobutton-like items.

AutoCheckParent(self, item, checked)

Traverses up the tree and checks/unchecks parent items.

Parameters:	item – an instance of `GenericTreeItem`; checked (bool) – `True` to check an item, `False` to uncheck it.

Note

This method is meaningful only for checkbox-like and radiobutton-like items.

AutoToggleChild(self, item)

Transverses the tree and toggles the items.

Parameters:	item – an instance of `GenericTreeItem`.

Note

This method is meaningful only for checkbox-like and radiobutton-like items.

CalculateLevel(self, item, dc, level, y, align=0)

Calculates the level of an item inside the tree hierarchy.

Parameters:

item – an instance of GenericTreeItem;
dc – an instance of DC;
level (integer) – the item level in the tree hierarchy;
y (integer) – the current vertical position inside the PyScrolledWindow;

align (integer) – an integer specifying the alignment type:

align Value	Description
0	No horizontal alignment of windows (in items with windows).
1	Windows (in items with windows) are aligned at the same horizontal position.
2	Windows (in items with windows) are aligned at the rightmost edge of`CustomTreeCtrl`.

Returns:

The new y vertical position inside the PyScrolledWindow.

CalculateLineHeight(self): Calculates the height of a line.

CalculatePositions(self): Calculates all the positions of the visible items.

CalculateSize(self, item, dc, level=-1, align=0)

Calculates overall position and size of an item.

Parameters:

item – an instance of GenericTreeItem;
dc – an instance of DC;
level (integer) – the item level in the tree hierarchy;

align (integer) – an integer specifying the alignment type:

align Value	Description
0	No horizontal alignment of windows (in items with windows).
1	Windows (in items with windows) are aligned at the same horizontal position.
2	Windows (in items with windows) are aligned at the rightmost edge of`CustomTreeCtrl`.

CheckChilds(self, item, checked=True)

Programatically check/uncheck item children.

Parameters:	item – an instance of `GenericTreeItem`; checked (bool) – `True` to check an item, `False` to uncheck it.

Note

This method is meaningful only for checkbox-like and radiobutton-like items.

Note

This method does not generate EVT_TREE_ITEM_CHECKING and EVT_TREE_ITEM_CHECKED events.

CheckItem(self, item, checked=True)

Actually checks/uncheks an item, sending (eventually) the two events EVT_TREE_ITEM_CHECKING and EVT_TREE_ITEM_CHECKED.

Parameters:	item – an instance of `GenericTreeItem`; checked (bool) – for a radiobutton-type item, `True` to check it, `False` to uncheck it. For a checkbox-type item, it can be one of `CHK_UNCHECKED` when the checkbox is unchecked, `CHK_CHECKED` when it is checked and `CHK_UNDETERMINED` when it’s in the undetermined state.

CheckItem2(self, item, checked=True, torefresh=False)

Used internally to avoid EVT_TREE_ITEM_CHECKED events.

Parameters:	item – an instance of `GenericTreeItem`; checked (bool) – `True` to check an item, `False` to uncheck it; torefresh (bool) – whether to redraw the item or not.

CheckSameLevel(self, item, checked=False)

Uncheck radio items which are on the same level of the checked one. Used internally.

Parameters:	item – an instance of `GenericTreeItem`; checked (bool) – `True` to check an item, `False` to uncheck it.

Note

This method is meaningful only for radiobutton-like items.

ChildrenClosing(self, item)

We are about to destroy the item children.

Parameters:	item – an instance of `GenericTreeItem`.

Collapse(self, item)

Collapse an item, sending a EVT_TREE_ITEM_COLLAPSING and EVT_TREE_ITEM_COLLAPSED events.

Parameters:	item – an instance of `GenericTreeItem`.
Raise :	Exception if you try to collapse a hidden root (i.e., when the `TR_HIDE_ROOT` style is set for `CustomTreeCtrl`).

CollapseAndReset(self, item)

Collapse the given item and deletes its children.

Parameters:	item – an instance of `GenericTreeItem`.

Delete(self, item)

Deletes an item.

Parameters:	item – an instance of `GenericTreeItem`.

Note

This method sends the EVT_TREE_DELETE_ITEM event.

DeleteAllItems(self): Deletes all items in the CustomTreeCtrl.

DeleteChildren(self, item)

Delete all the item’s children.

Parameters:	item – an instance of `GenericTreeItem`.

DeleteItemWindow(self, item)

Deletes the window associated to an item (if any).

Parameters:	item – an instance of `GenericTreeItem`.

DoGetBestSize(self)

Gets the size which best suits the window: for a control, it would be the minimal size which doesn’t truncate the control, for a panel - the same size as it would have after a call toFit().

Returns:	An instance of `Size`.

Note

Overridden from PyScrolledWindow.

DoInsertItem(self, parentId, previous, text, ct_type=0, wnd=None, image=-1, selImage=-1, data=None, separator=False)

Actually inserts an item in the tree.

Parameters:

Parameters:	parentId – an instance of `GenericTreeItem` representing the item’s parent; previous (integer) – the index at which we should insert the item; text (string) – the item text label; ct_type (integer) – the item type (see `SetItemType` for a list of valid item types); wnd – if not `None`, a non-toplevel window to show next to the item, any subclass of `Window` except top-level windows; image (integer) – an index within the normal image list specifying the image to use for the item in unselected state; selImage (integer) – an index within the normal image list specifying the image to use for the item in selected state; if image > -1 and selImage is -1, the same image is used for both selected and unselected items; data (object) – associate the given Python object data with the item; separator (bool) – `True` if the item is a separator, `False` otherwise.
Returns:	An instance of `GenericTreeItem` upon successful insertion.
Raise :	Exception in the following cases: The item window is not `None` but the `TR_HAS_VARIABLE_ROW_HEIGHT` flag has not been set for `CustomTreeCtrl`; The item has multiline text (with line-breaks in it) but the `TR_HAS_VARIABLE_ROW_HEIGHT` flag has not been set for `CustomTreeCtrl`; The ct_type attribute is less than `0` or greater than `2`; The parent item is a separator; The item is a separator but it has text or an associated window.

parentId – an instance of GenericTreeItem representing the item’s parent;
previous (integer) – the index at which we should insert the item;
text (string) – the item text label;
ct_type (integer) – the item type (see SetItemType for a list of valid item types);
wnd – if not None, a non-toplevel window to show next to the item, any subclass of Window except top-level windows;
image (integer) – an index within the normal image list specifying the image to use for the item in unselected state;
selImage (integer) – an index within the normal image list specifying the image to use for the item in selected state; if image > -1 and selImage is -1, the same image is used for both selected and unselected items;
data (object) – associate the given Python object data with the item;
separator (bool) – True if the item is a separator, False otherwise.

Returns:

An instance of GenericTreeItem upon successful insertion.

Raise :

Exception in the following cases:

The item window is not None but the TR_HAS_VARIABLE_ROW_HEIGHT flag has not been set for CustomTreeCtrl;
The item has multiline text (with line-breaks in it) but the TR_HAS_VARIABLE_ROW_HEIGHT flag has not been set for CustomTreeCtrl;
The ct_type attribute is less than 0 or greater than 2;
The parent item is a separator;
The item is a separator but it has text or an associated window.

Note

Separator items should not have children, text labels or an associated window.

DoSelectItem(self, item, unselect_others=True, extended_select=False)

Actually selects/unselects an item, sending EVT_TREE_SEL_CHANGING and EVT_TREE_SEL_CHANGED events.

Parameters:	item – an instance of `GenericTreeItem`; unselect_others (bool) – if `True`, all the other selected items are unselected. extended_select (bool) – `True` if the `CustomTreeCtrl` is using the `TR_EXTENDED` style.

DrawHorizontalGradient(self, dc, rect, hasfocus)

Gradient fill from colour 1 to colour 2 from left to right.

Parameters:	dc – an instance of `DC`; rect (Rect) – the rectangle to be filled with the gradient shading; hasfocus (bool) – `True` if the main `CustomTreeCtrl` has focus, `False` otherwise.

DrawVerticalGradient(self, dc, rect, hasfocus)

Gradient fill from colour 1 to colour 2 from top to bottom.

Parameters:	dc – an instance of `DC`; rect (Rect) – the rectangle to be filled with the gradient shading; hasfocus (bool) – `True` if the main `CustomTreeCtrl` has focus, `False` otherwise.

DrawVistaRectangle(self, dc, rect, hasfocus)

Draws the selected item(s) with the Windows Vista style.

Parameters:	dc – an instance of `DC`; rect (Rect) – the rectangle to be filled with the gradient shading; hasfocus (bool) – `True` if the main `CustomTreeCtrl` has focus, `False` otherwise.

Edit(self, item)

Internal function. Starts the editing of an item label, sending a EVT_TREE_BEGIN_LABEL_EDIT event.

Parameters:	item – an instance of `GenericTreeItem`.

Warning

Separator-type items can not be edited.

EditLabel(self, item)

Starts editing an item label.

Parameters:	item – an instance of `GenericTreeItem`.

EnableChildren(self, item, enable=True)

Enables/disables the item children.

Parameters:	item – an instance of `GenericTreeItem`; enable (bool) – `True` to enable the children, `False` to disable them.

Note

This method is used internally.

EnableItem(self, item, enable=True, torefresh=True)

Enables/disables an item.

Parameters:	item – an instance of `GenericTreeItem`; enable (bool) – `True` to enable the item, `False` to disable it; torefresh (bool) – whether to redraw the item or not.

EnableSelectionGradient(self, enable=True)

Globally enables/disables drawing of gradient selections.

Parameters:	enable (bool) – `True` to enable gradient-style selections, `False` to disable it.

Note

Calling this method disables any Vista-style selection previously enabled.

EnableSelectionVista(self, enable=True)

Globally enables/disables drawing of Windows Vista selections.

Parameters:	enable (bool) – `True` to enable Vista-style selections, `False` to disable it.

Note

Calling this method disables any gradient-style selection previously enabled.

EnsureVisible(self, item)

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

Parameters:	item – an instance of `GenericTreeItem`.

Expand(self, item)

Expands an item, sending a EVT_TREE_ITEM_EXPANDING and EVT_TREE_ITEM_EXPANDED events.

Parameters:	item – an instance of `GenericTreeItem`.
Raise :	Exception if you try to expand a hidden root (i.e., when the `TR_HIDE_ROOT` style is set for `CustomTreeCtrl`).

ExpandAll(self)

Expands all CustomTreeCtrl items.

Note

This method suppresses the EVT_TREE_ITEM_EXPANDING and EVT_TREE_ITEM_EXPANDED events because expanding many items int the control would be too slow then.

ExpandAllChildren(self, item)

Expands all the items children of the input item.

Parameters:	item – an instance of `GenericTreeItem`.

Note

This method suppresses the EVT_TREE_ITEM_EXPANDING and EVT_TREE_ITEM_EXPANDED events because expanding many items int the control would be too slow then.

FillArray(self, item, array=[])

Internal function. Used to populate an array of selected items when the style TR_MULTIPLE is used.

Parameters:	item – an instance of `GenericTreeItem`; array (list) – a Python list containing the selected items.
Returns:	A Python list containing the selected items.

FindItem(self, idParent, prefixOrig)

Finds the first item starting with the given prefix after the given parent.

Parameters:	idParent (integer) – an instance of `GenericTreeItem`; prefixOrig (string) – a string containing the item text prefix.
Returns:	An instance of `GenericTreeItem` or `None` if no item has been found.

Freeze(self)

Freeze CustomTreeCtrl.

Freezes the window or, in other words, prevents any updates from taking place on screen, the window is not redrawn at all. Thaw must be called to reenable window redrawing. Calls to these two functions may be nested.

Note

This method is useful for visual appearance optimization (for example, it is a good idea to use it before doing many large text insertions in a row into a TextCtrl under wxGTK) but is not implemented on all platforms nor for all controls so it is mostly just a hint to wxWidgets and not a mandatory directive.

GetAGWWindowStyleFlag(self)

Returns the CustomTreeCtrl style.

See also

The __init__ method for a list of possible style flags.

GetBackgroundImage(self)

Returns the CustomTreeCtrl background image (if any).

Returns:	An instance of `Bitmap` if a background image is present, `None` otherwise.

Note

At present, the background image can only be used in “tile” mode.

Todo

Support background images also in stretch and centered modes.

GetBorderPen(self)

Returns the pen used to draw the selected item border.

Returns:	An instance of `Pen`.

Note

The border pen is not used if the Windows Vista selection style is applied.

GetBoundingRect(self, item, textOnly=False)

Retrieves the rectangle bounding the item.

Parameters:	item – an instance of `GenericTreeItem`; textOnly (bool) – if `True`, only the rectangle around the item’s label will be returned, otherwise the item’s image is also taken into account.
Returns:	An instance of `Rect`.

Note

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.

GetButtonsImageList(self)

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

Returns:	An instance of `ImageList`.

GetChildrenCount(self, item, recursively=True)

Returns the item children count.

Parameters:	item – an instance of `GenericTreeItem`; recursively (bool) – if `True`, returns the total number of descendants, otherwise only one level of children is counted.

classmethod GetClassDefaultAttributes(self)

Returns the default font and colours which are used by the control. This is useful if you want to use the same font or colour in your own control as in a standard control – which is a much better idea than hard coding specific colours or fonts which might look completely out of place on the users system, especially if it uses themes.

This static method is “overridden’’ in many derived classes and so calling, for example, Button.GetClassDefaultAttributes () will typically return the values appropriate for a button which will be normally different from those returned by, say, ListCtrl.GetClassDefaultAttributes ().

Returns:	An instance of `VisualAttributes`.

Note

The VisualAttributes structure has at least the fields font, colFg and colBg. All of them may be invalid if it was not possible to determine the default control appearance or, especially for the background colour, if the field doesn’t make sense as is the case for colBg for the controls with themed background.

Note

Overridden from PyControl.

GetConnectionPen(self)

Returns the pen used to draw the connecting lines between items.

Returns:	An instance of `Pen`.

GetControlBmp(self, checkbox=True, checked=False, enabled=True, x=16, y=16)

Returns a native looking checkbox or radio button bitmap.

Parameters:	checkbox (bool) – `True` to get a checkbox image, `False` for a radiobutton one; checked (bool) – `True` if the control is marked, `False` if it is not; enabled (bool) – `True` if the control is enabled, `False` if it is not; x (integer) – the width of the bitmap; y (integer) – the height of the bitmap.
Returns:	An instance of `Bitmap`, representing a native looking checkbox or radiobutton.

GetCount(self): Returns the global number of items in the tree.

GetDisabledColour(self)

Returns the colour for items in a disabled state.

Returns:	An instance of `Colour`.

GetEditControl(self): Returns a pointer to the edit TreeTextCtrl if the item is being edited or None otherwise (it is assumed that no more than one item may be edited simultaneously).

GetFirstChild(self, item)

Returns the item’s first child and an integer value ‘cookie’. Call GetNextChild for the next child using this very ‘cookie’ return value as an input.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	A tuple with the first value being an instance of `GenericTreeItem` or `None` if there are no further children, and as second value an integer parameter ‘cookie’.

Note

This method returns None if there are no further children.

GetFirstGradientColour(self)

Returns the first gradient colour for gradient-style selections.

Returns:	An instance of `Colour`.

GetFirstVisibleItem(self)

Returns the first visible item.

Returns:	An instance of `GenericTreeItem` or `None` if there are no visible items.

GetGradientStyle(self)

Returns the gradient style for gradient-style selections.

Returns:	`0` for horizontal gradient-style selections, `1` for vertical gradient-style selections.

GetHilightFocusColour(self)

Returns the colour used to highlight focused selected items.

Returns:	An instance of `Colour`.

Note

This is used only if gradient and Windows Vista selection styles are disabled.

GetHilightNonFocusColour(self)

Returns the colour used to highlight unfocused selected items.

Returns:	An instance of `Colour`.

Note

This is used only if gradient and Windows Vista selection styles are disabled.

GetHyperTextFont(self)

Returns the font used to render hypertext items.

Returns:	An instance of `Font`.

Note

This method is meaningful only for hypertext-like items.

GetHyperTextNewColour(self)

Returns the colour used to render a non-visited hypertext item.

Returns:	An instance of `Colour`.

Note

This method is meaningful only for hypertext-like items.

GetHyperTextVisitedColour(self)

Returns the colour used to render a visited hypertext item.

Returns:	An instance of `Colour`.

Note

This method is meaningful only for hypertext-like items.

GetImageList(self)

Returns the normal image list associated with CustomTreeCtrl.

Returns:	An instance of `ImageList`.

GetImageListCheck(self)

Returns the image list used to build the check/radio buttons in CustomTreeCtrl.

Returns:	An instance of `ImageList`.

GetIndent(self): Returns the item indentation, in pixels.

GetItem3StateValue(self, item)

Gets the state of a 3-state checkbox item.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`CHK_UNCHECKED` when the checkbox is unchecked, `CHK_CHECKED` when it is checked and `CHK_UNDETERMINED` when it’s in the undetermined state.

Note

This method raises an exception when the function is used with a 2-state checkbox item.

Note

This method is meaningful only for checkbox-like items.

GetItemBackgroundColour(self, item)

Returns the item background colour.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `Colour`.

GetItemFont(self, item)

Returns the item font.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `Font`.

GetItemImage(self, item, which=TreeItemIcon_Normal)

Returns the item image.

Parameters:

item – an instance of GenericTreeItem;

which (integer) – can be one of the following bits:

Item State	Description
`TreeItemIcon_Normal`	To get the normal item image
`TreeItemIcon_Selected`	To get the selected item image (i.e. the image which is shown when the item is currently selected)
`TreeItemIcon_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)
`TreeItemIcon_SelectedExpanded`	To get the selected expanded image (which is shown when an expanded item is currently selected)

Returns:

An integer index that can be used to retrieve the item image inside a ImageList.

GetItemLeftImage(self, item)

Returns the item leftmost image, i.e. the image associated to the item on the leftmost part of the CustomTreeCtrl client area.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An integer index that can be used to retrieve the item leftmost image inside a `ImageList`.

GetItemParent(self, item)

Returns the item parent (can be None for root items).

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `GenericTreeItem` or `None` for root items.

GetItemSize(self, item)

Returns the horizontal space available in CustomTreeCtrl, in pixels, to draw this item.

Parameters:	item – an instance of `GenericTreeItem`.

New in version 0.9.3.

GetItemText(self, item)

Returns the item text.

Parameters:	item – an instance of `GenericTreeItem`.

GetItemTextColour(self, item)

Returns the item text colour or separator horizontal line colour.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `Colour`.

GetItemType(self, item)

Returns the item type.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An integer representing the item type.

See also

SetItemType for a description of valid item types.

GetItemVisited(self, item)

Returns whether an hypertext item was visited.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the hypertext item has been visited, `False` otherwise.

Note

This method is meaningful only for hypertext-like items.

GetItemWindow(self, item)

Returns the window associated to the item (if any).

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `Window` if the item has an associated window, `None` otherwise.

GetItemWindowEnabled(self, item)

Returns whether the window associated to the item is enabled.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the item has an associated window and this window is enabled, `False` in all other cases.

GetLastChild(self, item)

Returns the item last child.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `GenericTreeItem` or `None` if there are no further children.

GetLeftImageList(self)

Returns the image list for CustomTreeCtrl filled with images to be used on the leftmost part of the client area. Any item can have a leftmost image associated with it.

Returns:	An instance of `ImageList`.

GetLineHeight(self, item)

Returns the line height for the given item.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	the item height, in pixels.

GetMaxWidth(self, respect_expansion_state=True)

Returns the maximum width of the CustomTreeCtrl.

Parameters:	respect_expansion_state (bool) – if `True`, only the expanded items (and their children) will be measured. Otherwise all the items are expanded and their width measured.
Returns:	the maximum width of `CustomTreeCtrl`, in pixels.

GetNext(self, item)

Returns the next item. Only for internal use right now.

Returns:	An instance of `GenericTreeItem` or `None` if there are no further items.
Parameters:	item – an instance of `GenericTreeItem`.

GetNextActiveItem(self, item, down=True)

Returns the next active item. Used Internally at present.

Parameters:	item – an instance of `GenericTreeItem`; down (bool) – `True` to search downwards in the hierarchy for an active item, `False` to search upwards.
Returns:	An instance of `GenericTreeItem` if an active item has been found or `None` if none has been found.

GetNextChild(self, item, cookie)

Returns the item’s next child.

Parameters:	item – an instance of `GenericTreeItem`; cookie – a 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).
Returns:	A tuple with the first value being an instance of `GenericTreeItem` or `None` if there are no further children, and as second value an integer parameter ‘cookie’.

Note

This method returns None if there are no further children.

GetNextExpanded(self, item)

Returns the next expanded item after the input one.

Parameters:	item – an instance of `TreeListItem`.

GetNextSibling(self, item)

Returns the next sibling of an item.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `GenericTreeItem` or `None` if there are no further siblings.

Note

This method returns None if there are no further siblings.

GetNextVisible(self, item)

Returns the next visible item.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `GenericTreeItem` or `None` if there are no next visible items.

GetPrev(self, item)

Returns the previous item. Only for internal use right now.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `GenericTreeItem`

GetPrevExpanded(self, item)

Returns the previous expanded item before the input one.

Parameters:	item – an instance of `TreeListItem`.

GetPrevSibling(self, item)

Returns the previous sibling of an item.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `GenericTreeItem` or `None` if there are no further siblings.

Note

This method returns None if there are no further siblings.

GetPrevVisible(self, item)

Returns the previous visible item.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `GenericTreeItem` or `None` if there are no previous visible items.

GetPyData(self, item)

Returns the data associated to an item.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	A Python object representing the item data, or `None` if no data has been assigned to this item.

GetRootItem(self): Returns the root item, an instance of GenericTreeItem.

GetSecondGradientColour(self)

Returns the second gradient colour for gradient-style selections.

Returns:	An instance of `Colour`.

GetSelection(self)

Returns the current selection.

Returns:	An instance of `GenericTreeItem`.

Note

This method is valid only with the style TR_SINGLE set. Use GetSelections for multiple-selections trees.

GetSelections(self)

Returns a list of selected items.

Note

This method can be used only if CustomTreeCtrl has the TR_MULTIPLE or TR_EXTENDED style set.

Returns:	A Python list containing the selected items, all instances of `GenericTreeItem`.

GetSeparatorColour(self, colour)

Returns the pen colour for separator-type items.

Returns:	An instance of `Colour` representing the separator pen colour.

GetSpacing(self): Returns the spacing between the start and the text, in pixels.

GetStateImageList(self)

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

Returns:	An instance of `ImageList`.

HandleHyperLink(self, item)

Handles the hyperlink items, sending the EVT_TREE_ITEM_HYPERLINK event.

Parameters:	item – an instance of `GenericTreeItem`.

HasAGWFlag(self, flag)

Returns True if CustomTreeCtrl has the flag bit set.

Parameters:	flag (integer) – any possible window style for `CustomTreeCtrl`.

See also

The __init__ method for the flag parameter description.

HasButtons(self)

Returns whether CustomTreeCtrl has the TR_HAS_BUTTONS flag set.

Returns:	`True` if `CustomTreeCtrl` has the `TR_HAS_BUTTONS` flag set, `False` otherwise.

HasChildren(self, item)

Returns whether an item has children or not.

Parameters:	item – an instance of `GenericTreeItem`.

HideWindows(self): Hides the windows associated to the items. Used internally.

HitTest(self, point, flags=0)

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

Parameters:

point – an instance of Point, a point to test for hits;

flags (integer) – a bitlist of the following values:

HitTest Flags	Hex Value	Description
`TREE_HITTEST_ABOVE`	0x1	Above the client area
`TREE_HITTEST_BELOW`	0x2	Below the client area
`TREE_HITTEST_NOWHERE`	0x4	No item has been hit
`TREE_HITTEST_ONITEMBUTTON`	0x8	On the button associated to an item
`TREE_HITTEST_ONITEMICON`	0x10	On the icon associated to an item
`TREE_HITTEST_ONITEMINDENT`	0x20	On the indent associated to an item
`TREE_HITTEST_ONITEMLABEL`	0x40	On the label (string) associated to an item
`TREE_HITTEST_ONITEM`	0x50	Anywhere on the item
`TREE_HITTEST_ONITEMRIGHT`	0x80	On the right of the label associated to an item
`TREE_HITTEST_TOLEFT`	0x200	On the left of the client area
`TREE_HITTEST_TORIGHT`	0x400	On the right of the client area
`TREE_HITTEST_ONITEMUPPERPART`	0x800	On the upper part (first half) of the item
`TREE_HITTEST_ONITEMLOWERPART`	0x1000	On the lower part (second half) of the item
`TREE_HITTEST_ONITEMCHECKICON`	0x2000	On the check/radio icon, if present

Returns:

A tuple with the first value being an instance of GenericTreeItem or None if no item has been hit-tested, and as second value an integer parameter flag.

Note

both the item (if any, None otherwise) and the flags are always returned as a tuple.

InsertItem(self, parentId, input, text, ct_type=0, wnd=None, image=-1, selImage=-1, data=None, separator=False)

Inserts an item after the given previous.

Returns:	An instance of `GenericTreeItem` upon successful insertion.

See also

InsertItemByIndex and InsertItemByItem for an explanation of the input parameters.

See also

DoInsertItem for possible exceptions generated by this method.

InsertItemByIndex(self, parentId, idPrevious, text, ct_type=0, wnd=None, image=-1, selImage=-1, data=None, separator=False)

Inserts an item after the given previous.

Parameters:

parentId – an instance of GenericTreeItem representing the item’s parent;
idPrevious – the index at which we should insert the new item;
text (string) – the item text label;
ct_type (integer) – the item type (see SetItemType for a list of valid item types);
wnd – if not None, a non-toplevel window to show next to the item, any subclass of Window;
image (integer) – an index within the normal image list specifying the image to use for the item in unselected state;
selImage (integer) – an index within the normal image list specifying the image to use for the item in selected state; if image > -1 and selImage is -1, the same image is used for both selected and unselected items;
data (object) – associate the given Python object data with the item;
separator (bool) – True if the item is a separator, False otherwise.

Returns:

An instance of GenericTreeItem upon successful insertion.

See also

DoInsertItem for possible exceptions generated by this method.

InsertItemByItem(self, parentId, idPrevious, text, ct_type=0, wnd=None, image=-1, selImage=-1, data=None, separator=False)

Inserts an item after the given previous.

Parameters:	parentId – an instance of `GenericTreeItem` representing the item’s parent; idPrevious – an instance of `GenericTreeItem` representing the previous item; text (string) – the item text label; ct_type (integer) – the item type (see `SetItemType` for a list of valid item types); wnd – if not `None`, a non-toplevel window to show next to the item, any subclass of `Window`; image (integer) – an index within the normal image list specifying the image to use for the item in unselected state; selImage (integer) – an index within the normal image list specifying the image to use for the item in selected state; if image > -1 and selImage is -1, the same image is used for both selected and unselected items; data (object) – associate the given Python object data with the item; separator (bool) – `True` if the item is a separator, `False` otherwise.
Returns:	An instance of `GenericTreeItem` upon successful insertion.
Raise :	Exception if the previous item is not a sibling.

See also

DoInsertItem for other possible exceptions generated by this method.

InsertSeparator(self, parentId, input)

Inserts a separator item after the given previous.

Returns:	An instance of `GenericTreeItem` upon successful insertion.

See also

InsertItemByIndex and InsertItemByItem for an explanation of the input parameters.

See also

DoInsertItem for possible exceptions generated by this method.

IsBold(self, item)

Returns whether the item font is bold or not.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the item has bold text, `False` otherwise.

IsDescendantOf(self, parent, item)

Checks if the given item is under another one in the tree hierarchy.

Parameters:	parent – an instance of `GenericTreeItem`, representing the possible parent of item; item – another instance of `GenericTreeItem`.
Returns:	`True` if item is a descendant of parent, `False` otherwise.

IsExpanded(self, item)

Returns whether the item is expanded or not.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the item is expanded, `False` if it is collapsed.

IsItalic(self, item)

Returns whether the item font is italic or not.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the item has italic text, `False` otherwise.

IsItem3State(self, item)

Returns whether or not the checkbox item is a 3-state checkbox.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if this checkbox is a 3-state checkbox, `False` if it’s a 2-state checkbox item.

Note

This method is meaningful only for checkbox-like items.

IsItemChecked(self, item)

Returns whether an item is checked or not.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the item is in a ‘checked’ state, `False` otherwise.

Note

This method is meaningful only for checkbox-like and radiobutton-like items.

IsItemEnabled(self, item)

Returns whether an item is enabled or disabled.

Parameters:	item – an instance of `GenericTreeItem`.

IsItemHyperText(self, item)

Returns whether an item is hypertext or not.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the item is hypertext-like, `False` otherwise.

IsItemSeparator(self, item)

Returns whether an item is of separator type or not.

Parameters:	item – an instance of `GenericTreeItem`.

IsSelected(self, item)

Returns whether the item is selected or not.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the item is selected, `False` otherwise.

IsVisible(self, item)

Returns whether the item is visible or not (i.e., its hierarchy is expanded enough to show the item).

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the item is visible, `False` if it is hidden.

ItemHasChildren(self, item)

Returns whether the item has children or not.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the item has children, `False` otherwise.

OnAcceptEdit(self, item, value)

Called by TreeTextCtrl, to accept the changes and to send the EVT_TREE_END_LABEL_EDIT event.

Parameters:	item – an instance of `GenericTreeItem`; value (string) – the new value of the item label.
Returns:	`True` if the editing has not been vetoed, `False` otherwise.

OnCancelEdit(self, item)

Called by TreeTextCtrl, to cancel the changes and to send the EVT_TREE_END_LABEL_EDIT event.

Parameters:	item – an instance of `GenericTreeItem`.

OnCompareItems(self, item1, item2)

Returns whether 2 items have the same text.

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

Parameters:	item1 – an instance of `GenericTreeItem`; item2 – another instance of `GenericTreeItem`.
Returns:	The return value is negative if item1 < item2, zero if item1 == item2 and strictly positive if item1 < item2.

Note

The base class version compares items alphabetically.

OnDestroy(self, event)

Handles the EVT_WINDOW_DESTROY event for CustomTreeCtrl.

Parameters:	event – a `WindowDestroyEvent` event to be processed.

OnEditTimer(self): The timer for editing has expired. Start editing.

OnEraseBackground(self, event)

Handles the EVT_ERASE_BACKGROUND event for CustomTreeCtrl.

Parameters:	event – a `EraseEvent` event to be processed.

OnGetToolTip(self, event)

Process the tooltip event, to speed up event processing. Does not actually get a tooltip.

Parameters:	event – a `CommandTreeEvent` event to be processed.

OnInternalIdle(self)

This method 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.

This method may be used to do delayed painting, for example, and most implementations call Window.UpdateWindowUI in order to send update events to the window in idle time.

OnKeyDown(self, event)

Handles the EVT_KEY_DOWN event for CustomTreeCtrl, sending a EVT_TREE_KEY_DOWN event.

Parameters:	event – a `KeyEvent` event to be processed.

OnKillFocus(self, event)

Handles the EVT_KILL_FOCUS event for CustomTreeCtrl.

Parameters:	event – a `FocusEvent` event to be processed.

OnMouse(self, event)

Handles a bunch of EVT_MOUSE_EVENTS events for CustomTreeCtrl.

Parameters:	event – a `MouseEvent` event to be processed.

OnPaint(self, event)

Handles the EVT_PAINT event for CustomTreeCtrl.

Parameters:	event – a `PaintEvent` event to be processed.

OnSetFocus(self, event)

Handles the EVT_SET_FOCUS event for CustomTreeCtrl.

Parameters:	event – a `FocusEvent` event to be processed.

OnSize(self, event)

Handles the EVT_SIZE event for CustomTreeCtrl.

Parameters:	event – a `SizeEvent` event to be processed.

PaintItem(self, item, dc, level, align)

Actually draws an item.

Parameters:

item – an instance of GenericTreeItem;
dc – an instance of DC;
level (integer) – the item level in the tree hierarchy;

align (integer) – an integer specifying the alignment type:

align Value	Description
0	No horizontal alignment of windows (in items with windows).
1	Windows (in items with windows) are aligned at the same horizontal position.
2	Windows (in items with windows) are aligned at the rightmost edge of`CustomTreeCtrl`.

PaintLevel(self, item, dc, level, y, align)

Paint a level in the hierarchy of CustomTreeCtrl.

Parameters:

item – an instance of GenericTreeItem;
dc – an instance of DC;
level (integer) – the item level in the tree hierarchy;
y (integer) – the current vertical position in the PyScrolledWindow;

align (integer) – an integer specifying the alignment type:

align Value	Description
0	No horizontal alignment of windows (in items with windows).
1	Windows (in items with windows) are aligned at the same horizontal position.
2	Windows (in items with windows) are aligned at the rightmost edge of`CustomTreeCtrl`.

PrependItem(self, parent, text, ct_type=0, wnd=None, image=-1, selImage=-1, data=None, separator=False)

Prepends an item as a first child of parent.

Parameters:

parent – an instance of GenericTreeItem representing the item’s parent;
text (string) – the item text label;
ct_type (integer) – the item type (see SetItemType for a list of valid item types);
wnd – if not None, a non-toplevel window to show next to the item, any subclass of Window except top-level windows;
image (integer) – an index within the normal image list specifying the image to use for the item in unselected state;
selImage (integer) – an index within the normal image list specifying the image to use for the item in selected state; if image > -1 and selImage is -1, the same image is used for both selected and unselected items;
data (object) – associate the given Python object data with the item;
separator (bool) – True if the item is a separator, False otherwise.

Returns:

An instance of GenericTreeItem upon successful insertion.

See also

DoInsertItem for possible exceptions generated by this method.

PrependSeparator(self, parent)

Prepends a separator item as a first child of parent.

Parameters:	parent – an instance of `GenericTreeItem` representing the item’s parent.
Returns:	An instance of `GenericTreeItem` upon successful insertion.

See also

DoInsertItem for possible exceptions generated by this method.

RecurseOnChildren(self, item, maxwidth, respect_expansion_state)

Recurses over all the children of the spcified items, calculating their maximum width.

Parameters:	item – an instance of `GenericTreeItem`; maxwidth (integer) – the current maximum width for `CustomTreeCtrl`, in pixels; respect_expansion_state (bool) – if `True`, only the expanded items (and their children) will be measured. Otherwise all the items are expanded and their width measured.
Returns:	A tuple containing the maximum width and item height, in pixels.

RefreshItemWithWindows(self, item=None)

Refreshes the items with which a window is associated.

Parameters:	item – an instance of `GenericTreeItem`. If item is `None`, then the recursive refresh starts from the root node.

Note

This method is called only if the style TR_ALIGN_WINDOWS_RIGHT is used.

RefreshLine(self, item)

Refreshes a damaged item line.

Parameters:	item – an instance of `GenericTreeItem`.

RefreshSelected(self): Refreshes a damaged selected item line.

RefreshSelectedUnder(self, item)

Refreshes the selected items under the given item.

Parameters:	item – an instance of `GenericTreeItem`.

RefreshSubtree(self, item)

Refreshes a damaged subtree of an item.

Parameters:	item – an instance of `GenericTreeItem`.

ResetEditControl(self): Called by TreeTextCtrl when it marks itself for deletion.

ScrollTo(self, item)

Scrolls the specified item into view.

Parameters:	item – an instance of `GenericTreeItem`.

SelectAll(self)

Selects all the item in the tree.

Raise :	Exception if used without the `TR_EXTENDED` or `TR_MULTIPLE` style set.

Note

This method can be used only if CustomTreeCtrl has the TR_MULTIPLE or TR_EXTENDED style set.

SelectAllChildren(self, item)

Selects all the children of the given item.

Parameters:	item – an instance of `GenericTreeItem`.
Raise :	Exception if used without the `TR_EXTENDED` or `TR_MULTIPLE` style set.

Note

This method can be used only if CustomTreeCtrl has the TR_MULTIPLE or TR_EXTENDED style set.

SelectItem(self, item, select=True)

Selects/deselects an item.

Parameters:	item – an instance of `GenericTreeItem`; select (bool) – `True` to select an item, `False` to deselect it.

SelectItemRange(self, item1, item2)

Selects all the items between item1 and item2.

Parameters:	item1 – an instance of `GenericTreeItem`, representing the first item in the range to select; item2 – an instance of `GenericTreeItem`, representing the last item in the range to select.
Raise :	Exception if used without the `TR_EXTENDED` or `TR_MULTIPLE` style set.

Note

This method can be used only if CustomTreeCtrl has the TR_MULTIPLE or TR_EXTENDED style set.

SendDeleteEvent(self, item)

Actually sends the EVT_TREE_DELETE_ITEM event.

Parameters:	item – an instance of `GenericTreeItem`.

SetAGWWindowStyleFlag(self, agwStyle)

Sets the CustomTreeCtrl window style.

Parameters:	agwStyle (integer) – the new `CustomTreeCtrl` window style.

See also

The __init__ method for the agwStyle parameter description.

SetBackgroundColour(self, colour)

Changes the background colour of CustomTreeCtrl.

Parameters:	colour – the colour to be used as the background colour, pass `NullColour` to reset to the default colour.
Returns:	`False` if the underlying `PyScrolledWindow` does not accept the new colour, `True` otherwise.

Note

The background colour is usually painted by the default EraseEvent event handler function under Windows and automatically under GTK.

Note

Setting the background colour does not cause an immediate refresh, so you may wish to call Window.ClearBackground or Window.Refresh after calling this function.

Note

Overridden from PyScrolledWindow.

SetBackgroundImage(self, image)

Sets the CustomTreeCtrl background image.

Parameters:	image – if not `None`, an instance of `Bitmap`.

Note

At present, the background image can only be used in “tile” mode.

Todo

Support background images also in stretch and centered modes.

SetBorderPen(self, pen)

Sets the pen used to draw the selected item border.

Parameters:	pen – an instance of `Pen`.

Note

The border pen is not used if the Windows Vista selection style is applied.

SetButtonsImageList(self, imageList)

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

Parameters:	imageList – an instance of `ImageList`.

SetConnectionPen(self, pen)

Sets the pen used to draw the connecting lines between items.

Parameters:	pen – an instance of `Pen`.

SetDisabledColour(self, colour)

Sets the colour for items in a disabled state.

Parameters:	colour – a valid `Colour` instance.

SetFirstGradientColour(self, colour=None)

Sets the first gradient colour for gradient-style selections.

Parameters:	colour – if not `None`, a valid `Colour` instance. Otherwise, the colour is taken from the system value `SYS_COLOUR_HIGHLIGHT` .

SetFont(self, font)

Sets the CustomTreeCtrl font.

Parameters:	font – a valid `Font` instance.

Note

Overridden from PyScrolledWindow.

SetForegroundColour(self, colour)

Changes the foreground colour of CustomTreeCtrl.

Parameters:	colour – the colour to be used as the foreground colour, pass `NullColour` to reset to the default colour.
Returns:	`False` if the underlying `PyScrolledWindow` does not accept the new colour, `True` otherwise.

Note

Overridden from PyScrolledWindow.

SetGradientStyle(self, vertical=0)

Sets the gradient style for gradient-style selections.

Parameters:	vertical (integer) – `0` for horizontal gradient-style selections, `1` for vertical gradient-style selections.

SetHilightFocusColour(self, colour)

Sets the colour used to highlight focused selected items.

Parameters:	colour – a valid `Colour` instance.

Note

This is applied only if gradient and Windows Vista selection styles are disabled.

SetHilightNonFocusColour(self, colour)

Sets the colour used to highlight unfocused selected items.

Parameters:	colour – a valid `Colour` instance.

Note

This is applied only if gradient and Windows Vista selection styles are disabled.

SetHyperTextFont(self, font)

Sets the font used to render hypertext items.

Parameters:	font – a valid `Font` instance.

Note

This method is meaningful only for hypertext-like items.

SetHyperTextNewColour(self, colour)

Sets the colour used to render a non-visited hypertext item.

Parameters:	colour – a valid `Colour` instance.

Note

This method is meaningful only for hypertext-like items.

SetHyperTextVisitedColour(self, colour)

Sets the colour used to render a visited hypertext item.

Parameters:	colour – a valid `Colour` instance.

Note

This method is meaningful only for hypertext-like items.

SetImageList(self, imageList)

Sets the normal image list for CustomTreeCtrl.

Parameters:	imageList – an instance of `ImageList`.

SetImageListCheck(self, sizex, sizey, imglist=None)

Sets the checkbox/radiobutton image list.

Parameters:	sizex (integer) – the width of the bitmaps in the imglist, in pixels; sizey (integer) – the height of the bitmaps in the imglist, in pixels; imglist – an instance of `ImageList`.

SetIndent(self, indent)

Sets the indentation for CustomTreeCtrl.

Parameters:	indent (integer) – an integer representing the indentation for the items in the tree.

SetItem3State(self, item, allow)

Sets whether the item has a 3-state value checkbox assigned to it or not.

Parameters:	item – an instance of `GenericTreeItem`; allow (bool) – `True` to set an item as a 3-state checkbox, `False` to set it to a 2-state checkbox.
Returns:	`True` if the change was successful, `False` otherwise.

Note

This method is meaningful only for checkbox-like items.

SetItem3StateValue(self, item, state)

Sets the checkbox item to the given state.

Parameters:	item – an instance of `GenericTreeItem`; state (integer) – can be one of: `CHK_UNCHECKED` (check is off), `CHK_CHECKED` (check is on) or `CHK_UNDETERMINED` (check is mixed).

Note

This method raises an exception when the checkbox item is a 2-state checkbox and setting the state to CHK_UNDETERMINED .

Note

This method is meaningful only for checkbox-like items.

SetItemBackgroundColour(self, item, colour)

Sets the item background colour.

Parameters:	item – an instance of `GenericTreeItem`; colour – a valid `Colour` instance.

SetItemBold(self, item, bold=True)

Sets the item font as bold/unbold.

Parameters:	item – an instance of `GenericTreeItem`; bold (bool) – `True` to set the item font as bold, `False` otherwise.

SetItemDropHighlight(self, item, highlight=True)

Gives the item the visual feedback for drag and drop operations. This is useful when something is dragged from outside the CustomTreeCtrl.

Parameters:	item – an instance of `GenericTreeItem`; highlight (bool) – `True` to highlight the dragged items, `False` otherwise.

SetItemFont(self, item, font)

Sets the item font.

Parameters:	item – an instance of `GenericTreeItem`; font – a valid `Font` instance.

SetItemHasChildren(self, item, has=True)

Forces the appearance/disappearance of the button next to the item.

Parameters:	item – an instance of `GenericTreeItem`; has (bool) – `True` to have a button next to an item, `False` otherwise.

SetItemHyperText(self, item, hyper=True)

Sets whether the item is hypertext or not.

Parameters:	item – an instance of `GenericTreeItem`; hyper (bool) – `True` to have an item with hypertext behaviour, `False` otherwise.

SetItemImage(self, item, image, which=TreeItemIcon_Normal)

Sets the item image, depending on the item state.

Parameters:	item – an instance of `GenericTreeItem`; image (integer) – an index within the normal image list specifying the image to use for the item in the state specified by the which parameter; which (integer) – the item state.

See also

GetItemImage for an explanation of the which parameter.

SetItemItalic(self, item, italic=True)

Sets the item font as italic/non-italic.

Parameters:	item – an instance of `GenericTreeItem`; italic (bool) – `True` to set the item font as italic, `False` otherwise.

SetItemLeftImage(self, item, image)

Sets the item leftmost image, i.e. the image associated to the item on the leftmost part of the CustomTreeCtrl client area.

Parameters:	item – an instance of `GenericTreeItem`; image (integer) – an index within the left image list specifying the image to use for the item in the leftmost part of the client area.

SetItemText(self, item, text)

Sets the item text.

Parameters:	item – an instance of `GenericTreeItem`; text (string) – the new item label.
Raise :	Exception if the input item is a separator.

SetItemTextColour(self, item, colour)

Sets the item text colour or separator horizontal line colour.

Parameters:	item – an instance of `GenericTreeItem`; colour – a valid `Colour` instance.

SetItemType(self, item, ct_type)

Sets the item type.

Parameters:

item – an instance of GenericTreeItem;
ct_type (integer) – may be one of the following integers:

ct_typeValue Description

0 A normal item

1 A checkbox-like item

2 A radiobutton-type item

Note

Regarding radiobutton-type items (with ct_type = 2), the following approach is used:

All peer-nodes that are radiobuttons will be mutually exclusive. In other words, only one of a set of radiobuttons that share a common parent can be checked at once. If a radiobutton node becomes checked, then all of its peer radiobuttons must be unchecked.
If a radiobutton node becomes unchecked, then all of its child nodes will become inactive.

SetItemVisited(self, item, visited=True)

Sets whether an hypertext item was visited.

Parameters:	item – an instance of `GenericTreeItem`; visited (bool) – `True` to mark an hypertext item as visited, `False` otherwise.

Note

This method is meaningful only for hypertext-like items.

SetItemWindow(self, item, wnd)

Sets the window for the given item.

Parameters:	item – an instance of `GenericTreeItem`; wnd – if not `None`, a non-toplevel window to be displayed next to the item.
Raise :	Exception if the input item is a separator and wnd is not `None`.

SetItemWindowEnabled(self, item, enable=True)

Enables/disables the window associated to the item.

Parameters:	item – an instance of `GenericTreeItem`; enable (bool) – `True` to enable the associated window, `False` to disable it.

SetLeftImageList(self, imageList)

Sets the image list for CustomTreeCtrl filled with images to be used on the leftmost part of the client area. Any item can have a leftmost image associated with it.

Parameters:	imageList – an instance of `ImageList`.

SetPyData(self, item, data)

Sets the data associated to an item.

Parameters:	item – an instance of `GenericTreeItem`; data (object) – can be any Python object.

SetSecondGradientColour(self, colour=None)

Sets the second gradient colour for gradient-style selections.

Parameters:	colour – if not `None`, a valid `Colour` instance. Otherwise, the colour generated is a slightly darker version of the `CustomTreeCtrl` background colour.

SetSeparatorColour(self, colour)

Sets the pen colour for separator-type items.

Parameters:	colour – a valid instance of `Colour`.

SetSpacing(self, spacing)

Sets the spacing between items in CustomTreeCtrl.

Parameters:	spacing (integer) – an integer representing the spacing between items in the tree.

SetStateImageList(self, imageList)

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

Parameters:	imageList – an instance of `ImageList`.

ShouldInheritColours(self)

Return True from here to allow the colours of this window to be changed by InheritAttributes, returning False forbids inheriting them from the parent window.

The base class version returns False, but this method is overridden in Control where it returns True.

CustomTreeCtrl does not inherit colours from anyone.

SortChildren(self, item)

Sorts the children of the given item using the OnCompareItems method of CustomTreeCtrl.

Parameters:	item – an instance of `GenericTreeItem`.

Note

You should override the OnCompareItems method in your derived class to change the sort order (the default is ascending case-sensitive alphabetical order).

TagAllChildrenUntilLast(self, crt_item, last_item, select): Used internally.

TagNextChildren(self, crt_item, last_item, select): Used internally.

Thaw(self)

Thaw CustomTreeCtrl.

Reenables window updating after a previous call to Freeze. To really thaw the control, it must be called exactly the same number of times as Freeze.

Raise :	Exception if `Thaw` has been called without an un-matching `Freeze`.

TileBackground(self, dc)

Tiles the background image to fill all the available area.

Parameters:	dc – an instance of `DC`.

Todo

Support background images also in stretch and centered modes.

Toggle(self, item)

Toggles the item state (collapsed/expanded).

Parameters:	item – an instance of `GenericTreeItem`.

ToggleItemSelection(self, item)

Toggles the item selection.

Parameters:	item – an instance of `GenericTreeItem`.

UnCheckRadioParent(self, item, checked=False)

Used internally to handle radio node parent correctly.

Parameters:	item – an instance of `GenericTreeItem`; checked (bool) – `True` to check an item, `False` to uncheck it.

Unselect(self): Unselects the current selection.

UnselectAll(self): Unselect all the items.

UnselectAllChildren(self, item)

Unselects all the children of the given item.

Parameters:	item – an instance of `GenericTreeItem`.

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Inheritance Diagram

Inheritance diagram for class CustomTreeCtrl

Control Appearance

wxMSW

wxMAC

wxGTK

Known Superclasses

PyScrolledWindow

Methods Summary

`__init__`	Default class constructor.
`AcceptsFocus`	Can this window be given focus by mouse click?
`AddRoot`	Adds a root item to the `CustomTreeCtrl`.
`AdjustMyScrollbars`	Internal method used to adjust the `PyScrolledWindow` scrollbars.
`AppendItem`	Appends an item as a last child of its parent.
`AppendSeparator`	Appends an horizontal line separator as a last child of its parent.
`AssignButtonsImageList`	Assigns the button image list.
`AssignImageList`	Assigns the normal image list.
`AssignLeftImageList`	Assigns the image list for `CustomTreeCtrl` filled with images to be used on
`AssignStateImageList`	Assigns the state image list.
`AutoCheckChild`	Transverses the tree and checks/unchecks the items.
`AutoCheckParent`	Traverses up the tree and checks/unchecks parent items.
`AutoToggleChild`	Transverses the tree and toggles the items.
`CalculateLevel`	Calculates the level of an item inside the tree hierarchy.
`CalculateLineHeight`	Calculates the height of a line.
`CalculatePositions`	Calculates all the positions of the visible items.
`CalculateSize`	Calculates overall position and size of an item.
`CheckChilds`	Programatically check/uncheck item children.
`CheckItem`	Actually checks/uncheks an item, sending (eventually) the two
`CheckItem2`	Used internally to avoid `EVT_TREE_ITEM_CHECKED` events.
`CheckSameLevel`	Uncheck radio items which are on the same level of the checked one.
`ChildrenClosing`	We are about to destroy the item children.
`Collapse`	Collapse an item, sending a `EVT_TREE_ITEM_COLLAPSING` and
`CollapseAndReset`	Collapse the given item and deletes its children.
`Delete`	Deletes an item.
`DeleteAllItems`	Deletes all items in the `CustomTreeCtrl`.
`DeleteChildren`	Delete all the item’s children.
`DeleteItemWindow`	Deletes the window associated to an item (if any).
`DoGetBestSize`	Gets the size which best suits the window: for a control, it would be the
`DoInsertItem`	Actually inserts an item in the tree.
`DoSelectItem`	Actually selects/unselects an item, sending `EVT_TREE_SEL_CHANGING` and
`DrawHorizontalGradient`	Gradient fill from colour 1 to colour 2 from left to right.
`DrawVerticalGradient`	Gradient fill from colour 1 to colour 2 from top to bottom.
`DrawVistaRectangle`	Draws the selected item(s) with the Windows Vista style.
`Edit`	Internal function. Starts the editing of an item label, sending a
`EditLabel`	Starts editing an item label.
`EnableChildren`	Enables/disables the item children.
`EnableItem`	Enables/disables an item.
`EnableSelectionGradient`	Globally enables/disables drawing of gradient selections.
`EnableSelectionVista`	Globally enables/disables drawing of Windows Vista selections.
`EnsureVisible`	Scrolls and/or expands items to ensure that the given item is visible.
`Expand`	Expands an item, sending a `EVT_TREE_ITEM_EXPANDING` and
`ExpandAll`	Expands all `CustomTreeCtrl` items.
`ExpandAllChildren`	Expands all the items children of the input item.
`FillArray`	Internal function. Used to populate an array of selected items when
`FindItem`	Finds the first item starting with the given prefix after the given parent.
`Freeze`	Freeze `CustomTreeCtrl`.
`GetAGWWindowStyleFlag`	Returns the `CustomTreeCtrl` style.
`GetBackgroundImage`	Returns the `CustomTreeCtrl` background image (if any).
`GetBorderPen`	Returns the pen used to draw the selected item border.
`GetBoundingRect`	Retrieves the rectangle bounding the item.
`GetButtonsImageList`	Returns the buttons image list associated with `CustomTreeCtrl` (from
`GetChildrenCount`	Returns the item children count.
`GetClassDefaultAttributes`	Returns the default font and colours which are used by the control. This is
`GetConnectionPen`	Returns the pen used to draw the connecting lines between items.
`GetControlBmp`	Returns a native looking checkbox or radio button bitmap.
`GetCount`	Returns the global number of items in the tree.
`GetDisabledColour`	Returns the colour for items in a disabled state.
`GetEditControl`	Returns a pointer to the edit `TreeTextCtrl` if the item is being edited or
`GetFirstChild`	Returns the item’s first child and an integer value ‘cookie’.
`GetFirstGradientColour`	Returns the first gradient colour for gradient-style selections.
`GetFirstVisibleItem`	Returns the first visible item.
`GetGradientStyle`	Returns the gradient style for gradient-style selections.
`GetHilightFocusColour`	Returns the colour used to highlight focused selected items.
`GetHilightNonFocusColour`	Returns the colour used to highlight unfocused selected items.
`GetHyperTextFont`	Returns the font used to render hypertext items.
`GetHyperTextNewColour`	Returns the colour used to render a non-visited hypertext item.
`GetHyperTextVisitedColour`	Returns the colour used to render a visited hypertext item.
`GetImageList`	Returns the normal image list associated with `CustomTreeCtrl`.
`GetImageListCheck`	Returns the image list used to build the check/radio buttons in `CustomTreeCtrl`.
`GetIndent`	Returns the item indentation, in pixels.
`GetItem3StateValue`	Gets the state of a 3-state checkbox item.
`GetItemBackgroundColour`	Returns the item background colour.
`GetItemFont`	Returns the item font.
`GetItemImage`	Returns the item image.
`GetItemLeftImage`	Returns the item leftmost image, i.e. the image associated to the item on the leftmost
`GetItemParent`	Returns the item parent (can be `None` for root items).
`GetItemSize`	Returns the horizontal space available in `CustomTreeCtrl`, in pixels, to draw this item.
`GetItemText`	Returns the item text.
`GetItemTextColour`	Returns the item text colour or separator horizontal line colour.
`GetItemType`	Returns the item type.
`GetItemVisited`	Returns whether an hypertext item was visited.
`GetItemWindow`	Returns the window associated to the item (if any).
`GetItemWindowEnabled`	Returns whether the window associated to the item is enabled.
`GetLastChild`	Returns the item last child.
`GetLeftImageList`	Returns the image list for `CustomTreeCtrl` filled with images to be used on
`GetLineHeight`	Returns the line height for the given item.
`GetMaxWidth`	Returns the maximum width of the `CustomTreeCtrl`.
`GetNext`	Returns the next item. Only for internal use right now.
`GetNextActiveItem`	Returns the next active item. Used Internally at present.
`GetNextChild`	Returns the item’s next child.
`GetNextExpanded`	Returns the next expanded item after the input one.
`GetNextSibling`	Returns the next sibling of an item.
`GetNextVisible`	Returns the next visible item.
`GetPrev`	Returns the previous item. Only for internal use right now.
`GetPrevExpanded`	Returns the previous expanded item before the input one.
`GetPrevSibling`	Returns the previous sibling of an item.
`GetPrevVisible`	Returns the previous visible item.
`GetPyData`	Returns the data associated to an item.
`GetRootItem`	Returns the root item, an instance of `GenericTreeItem`.
`GetSecondGradientColour`	Returns the second gradient colour for gradient-style selections.
`GetSelection`	Returns the current selection.
`GetSelections`	Returns a list of selected items.
`GetSeparatorColour`	Returns the pen colour for separator-type items.
`GetSpacing`	Returns the spacing between the start and the text, in pixels.
`GetStateImageList`	Returns the state image list associated with `CustomTreeCtrl` (from which
`HandleHyperLink`	Handles the hyperlink items, sending the `EVT_TREE_ITEM_HYPERLINK` event.
`HasAGWFlag`	Returns `True` if `CustomTreeCtrl` has the flag bit set.
`HasButtons`	Returns whether `CustomTreeCtrl` has the `TR_HAS_BUTTONS` flag set.
`HasChildren`	Returns whether an item has children or not.
`HideWindows`	Hides the windows associated to the items. Used internally.
`HitTest`	Calculates which (if any) item is under the given point, returning the tree item
`InsertItem`	Inserts an item after the given previous.
`InsertItemByIndex`	Inserts an item after the given previous.
`InsertItemByItem`	Inserts an item after the given previous.
`InsertSeparator`	Inserts a separator item after the given previous.
`IsBold`	Returns whether the item font is bold or not.
`IsDescendantOf`	Checks if the given item is under another one in the tree hierarchy.
`IsExpanded`	Returns whether the item is expanded or not.
`IsItalic`	Returns whether the item font is italic or not.
`IsItem3State`	Returns whether or not the checkbox item is a 3-state checkbox.
`IsItemChecked`	Returns whether an item is checked or not.
`IsItemEnabled`	Returns whether an item is enabled or disabled.
`IsItemHyperText`	Returns whether an item is hypertext or not.
`IsItemSeparator`	Returns whether an item is of separator type or not.
`IsSelected`	Returns whether the item is selected or not.
`IsVisible`	Returns whether the item is visible or not (i.e., its hierarchy is expanded
`ItemHasChildren`	Returns whether the item has children or not.
`OnAcceptEdit`	Called by `TreeTextCtrl`, to accept the changes and to send the
`OnCancelEdit`	Called by `TreeTextCtrl`, to cancel the changes and to send the
`OnCompareItems`	Returns whether 2 items have the same text.
`OnDestroy`	Handles the `EVT_WINDOW_DESTROY` event for `CustomTreeCtrl`.
`OnEditTimer`	The timer for editing has expired. Start editing.
`OnEraseBackground`	Handles the `EVT_ERASE_BACKGROUND` event for `CustomTreeCtrl`.
`OnGetToolTip`	Process the tooltip event, to speed up event processing. Does not actually
`OnInternalIdle`	This method is normally only used internally, but sometimes an application
`OnKeyDown`	Handles the `EVT_KEY_DOWN` event for `CustomTreeCtrl`, sending a
`OnKillFocus`	Handles the `EVT_KILL_FOCUS` event for `CustomTreeCtrl`.
`OnMouse`	Handles a bunch of `EVT_MOUSE_EVENTS` events for `CustomTreeCtrl`.
`OnPaint`	Handles the `EVT_PAINT` event for `CustomTreeCtrl`.
`OnSetFocus`	Handles the `EVT_SET_FOCUS` event for `CustomTreeCtrl`.
`OnSize`	Handles the `EVT_SIZE` event for `CustomTreeCtrl`.
`PaintItem`	Actually draws an item.
`PaintLevel`	Paint a level in the hierarchy of `CustomTreeCtrl`.
`PrependItem`	Prepends an item as a first child of parent.
`PrependSeparator`	Prepends a separator item as a first child of parent.
`RecurseOnChildren`	Recurses over all the children of the spcified items, calculating their
`RefreshItemWithWindows`	Refreshes the items with which a window is associated.
`RefreshLine`	Refreshes a damaged item line.
`RefreshSelected`	Refreshes a damaged selected item line.
`RefreshSelectedUnder`	Refreshes the selected items under the given item.
`RefreshSubtree`	Refreshes a damaged subtree of an item.
`ResetEditControl`	Called by `TreeTextCtrl` when it marks itself for deletion.
`ScrollTo`	Scrolls the specified item into view.
`SelectAll`	Selects all the item in the tree.
`SelectAllChildren`	Selects all the children of the given item.
`SelectItem`	Selects/deselects an item.
`SelectItemRange`	Selects all the items between item1 and item2.
`SendDeleteEvent`	Actually sends the `EVT_TREE_DELETE_ITEM` event.
`SetAGWWindowStyleFlag`	Sets the `CustomTreeCtrl` window style.
`SetBackgroundColour`	Changes the background colour of `CustomTreeCtrl`.
`SetBackgroundImage`	Sets the `CustomTreeCtrl` background image.
`SetBorderPen`	Sets the pen used to draw the selected item border.
`SetButtonsImageList`	Sets the buttons image list for `CustomTreeCtrl` (from which application-defined
`SetConnectionPen`	Sets the pen used to draw the connecting lines between items.
`SetDisabledColour`	Sets the colour for items in a disabled state.
`SetFirstGradientColour`	Sets the first gradient colour for gradient-style selections.
`SetFont`	Sets the `CustomTreeCtrl` font.
`SetForegroundColour`	Changes the foreground colour of `CustomTreeCtrl`.
`SetGradientStyle`	Sets the gradient style for gradient-style selections.
`SetHilightFocusColour`	Sets the colour used to highlight focused selected items.
`SetHilightNonFocusColour`	Sets the colour used to highlight unfocused selected items.
`SetHyperTextFont`	Sets the font used to render hypertext items.
`SetHyperTextNewColour`	Sets the colour used to render a non-visited hypertext item.
`SetHyperTextVisitedColour`	Sets the colour used to render a visited hypertext item.
`SetImageList`	Sets the normal image list for `CustomTreeCtrl`.
`SetImageListCheck`	Sets the checkbox/radiobutton image list.
`SetIndent`	Sets the indentation for `CustomTreeCtrl`.
`SetItem3State`	Sets whether the item has a 3-state value checkbox assigned to it or not.
`SetItem3StateValue`	Sets the checkbox item to the given state.
`SetItemBackgroundColour`	Sets the item background colour.
`SetItemBold`	Sets the item font as bold/unbold.
`SetItemDropHighlight`	Gives the item the visual feedback for drag and drop operations.
`SetItemFont`	Sets the item font.
`SetItemHasChildren`	Forces the appearance/disappearance of the button next to the item.
`SetItemHyperText`	Sets whether the item is hypertext or not.
`SetItemImage`	Sets the item image, depending on the item state.
`SetItemItalic`	Sets the item font as italic/non-italic.
`SetItemLeftImage`	Sets the item leftmost image, i.e. the image associated to the item on the leftmost
`SetItemText`	Sets the item text.
`SetItemTextColour`	Sets the item text colour or separator horizontal line colour.
`SetItemType`	Sets the item type.
`SetItemVisited`	Sets whether an hypertext item was visited.
`SetItemWindow`	Sets the window for the given item.
`SetItemWindowEnabled`	Enables/disables the window associated to the item.
`SetLeftImageList`	Sets the image list for `CustomTreeCtrl` filled with images to be used on
`SetPyData`	Sets the data associated to an item.
`SetSecondGradientColour`	Sets the second gradient colour for gradient-style selections.
`SetSeparatorColour`	Sets the pen colour for separator-type items.
`SetSpacing`	Sets the spacing between items in `CustomTreeCtrl`.
`SetStateImageList`	Sets the state image list for `CustomTreeCtrl` (from which application-defined
`ShouldInheritColours`	Return `True` from here to allow the colours of this window to be
`SortChildren`	Sorts the children of the given item using the `OnCompareItems` method of
`TagAllChildrenUntilLast`	Used internally.
`TagNextChildren`	Used internally.
`Thaw`	Thaw `CustomTreeCtrl`.
`TileBackground`	Tiles the background image to fill all the available area.
`Toggle`	Toggles the item state (collapsed/expanded).
`ToggleItemSelection`	Toggles the item selection.
`UnCheckRadioParent`	Used internally to handle radio node parent correctly.
`Unselect`	Unselects the current selection.
`UnselectAll`	Unselect all the items.
`UnselectAllChildren`	Unselects all the children of the given item.

Class API

class CustomTreeCtrl(PyScrolledWindow)

Methods

__init__(self, parent, id=ID_ANY, pos=DefaultPosition, size=DefaultSize, style=0, agwStyle=TR_DEFAULT_STYLE, validator=DefaultValidator, name="CustomTreeCtrl")

Default class constructor.

Parameters:

parent (Window) – parent window. Must not be None;
id (integer) – window identifier. A value of -1 indicates a default value;
pos (tuple or Point) – the control position. A value of (-1, -1) indicates a default position, chosen by either the windowing system or wxPython, depending on platform;
size (tuple or Size) – the control size. A value of (-1, -1) indicates a default size, chosen by either the windowing system or wxPython, depending on platform;
style (integer) – the underlying PyScrolledWindow style;

agwStyle (integer) – the AGW-specific window style for CustomTreeCtrl. It can be a combination of the following bits:

Window Styles	Hex Value	Description
`TR_NO_BUTTONS`	0x0	For convenience to document that no buttons are to be drawn.
`TR_SINGLE`	0x0	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.
`TR_HAS_BUTTONS`	0x1	Use this style to show + and - buttons to the left of parent items.
`TR_NO_LINES`	0x4	Use this style to hide vertical level connectors.
`TR_LINES_AT_ROOT`	0x8	Use this style to show lines between root nodes. Only applicable if `TR_HIDE_ROOT` is set and `TR_NO_LINES` is not set.
`TR_DEFAULT_STYLE`	0x9	The set of flags that are closest to the defaults for the native control for a particular toolkit.
`TR_TWIST_BUTTONS`	0x10	Use old Mac-twist style buttons.
`TR_MULTIPLE`	0x20	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.
`TR_EXTENDED`	0x40	Use this style to allow disjoint items to be selected. (Only partially implemented; may not work in all cases).
`TR_HAS_VARIABLE_ROW_HEIGHT`	0x80	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.
`TR_EDIT_LABELS`	0x200	Use this style if you wish the user to be able to edit labels in the tree control.
`TR_ROW_LINES`	0x400	Use this style to draw a contrasting border between displayed rows.
`TR_HIDE_ROOT`	0x800	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.
`TR_FULL_ROW_HIGHLIGHT`	0x2000	Use this style to have the background colour and the selection highlight extend over the entire horizontal row of the tree control window.
`TR_AUTO_CHECK_CHILD`	0x4000	Only meaningful foe checkbox-type items: when a parent item is checked/unchecked its children are checked/unchecked as well.
`TR_AUTO_TOGGLE_CHILD`	0x8000	Only meaningful foe checkbox-type items: when a parent item is checked/unchecked its children are toggled accordingly.
`TR_AUTO_CHECK_PARENT`	0x10000	Only meaningful foe checkbox-type items: when a child item is checked/unchecked its parent item is checked/unchecked as well.
`TR_ALIGN_WINDOWS`	0x20000	Flag used to align windows (in items with windows) at the same horizontal position.
`TR_ALIGN_WINDOWS_RIGHT`	0x40000	Flag used to align windows (in items with windows) to the rightmost edge of `CustomTreeCtrl`.
`TR_ELLIPSIZE_LONG_ITEMS`	0x80000	Flag used to ellipsize long items when the horizontal space for `CustomTreeCtrl` is low.
`TR_TOOLTIP_ON_LONG_ITEMS`	0x100000	Flag used to show tooltips on long items when the horizontal space for `CustomTreeCtrl` is low.

validator (Validator) – window validator;
name (string) – window name.

AcceptsFocus(self)

Can this window be given focus by mouse click?

Note

This method always returns True as we always accept focus from mouse click.

Note

Overridden from PyScrolledWindow.

AddRoot(self, text, ct_type=0, wnd=None, image=-1, selImage=-1, data=None)

Adds a root item to the CustomTreeCtrl.

Parameters:

text (string) – the item text label;
ct_type (integer) – the item type (see SetItemType for a list of valid item types);
wnd – if not None, a non-toplevel window to show next to the item, any subclass of Window except top-level windows;
image (integer) – an index within the normal image list specifying the image to use for the item in unselected state;
selImage (integer) – an index within the normal image list specifying the image to use for the item in selected state; if image > -1 and selImage is -1, the same image is used for both selected and unselected items;
data (object) – associate the given Python object data with the item.

Returns:

An instance of GenericTreeItem upon successful insertion.

Raise :

Exception in the following cases:

There already is a root item in the tree;
The item window is not None but the TR_HAS_VARIABLE_ROW_HEIGHT flag has not been set for CustomTreeCtrl;
The item has multiline text (with line-breaks in it) but the TR_HAS_VARIABLE_ROW_HEIGHT flag has not been set for CustomTreeCtrl;
The ct_type attribute is less than 0 or greater than 2.

Warning

Only one root is allowed to exist in any given instance of CustomTreeCtrl.

AdjustMyScrollbars(self): Internal method used to adjust the PyScrolledWindow scrollbars.

AppendItem(self, parentId, text, ct_type=0, wnd=None, image=-1, selImage=-1, data=None)

Appends an item as a last child of its parent.

Parameters:

parentId – an instance of GenericTreeItem representing the item’s parent;
text (string) – the item text label;
ct_type (integer) – the item type (see SetItemType for a list of valid item types);
wnd – if not None, a non-toplevel window to show next to the item, any subclass of Window;
image (integer) – an index within the normal image list specifying the image to use for the item in unselected state;
selImage (integer) – an index within the normal image list specifying the image to use for the item in selected state; if image > -1 and selImage is -1, the same image is used for both selected and unselected items;
data (object) – associate the given Python object data with the item.

Returns:

An instance of GenericTreeItem upon successful insertion.

See also

DoInsertItem for possible exceptions generated by this method.

AppendSeparator(self, parentId)

Appends an horizontal line separator as a last child of its parent.

Parameters:	parentId – an instance of `GenericTreeItem` representing the separator’s parent.
Returns:	An instance of `GenericTreeItem` upon successful insertion.

See also

DoInsertItem for possible exceptions generated by this method.

AssignButtonsImageList(self, imageList)

Assigns the button image list.

Parameters:	imageList – an instance of `ImageList`.

AssignImageList(self, imageList)

Assigns the normal image list.

Parameters:	imageList – an instance of `ImageList`.

AssignLeftImageList(self, imageList)

Assigns the image list for CustomTreeCtrl filled with images to be used on the leftmost part of the client area. Any item can have a leftmost image associated with it.

Parameters:	imageList – an instance of `ImageList`.

AssignStateImageList(self, imageList)

Assigns the state image list.

Parameters:	imageList – an instance of `ImageList`.

AutoCheckChild(self, item, checked)

Transverses the tree and checks/unchecks the items.

Parameters:	item – an instance of `GenericTreeItem`; checked (bool) – `True` to check an item, `False` to uncheck it.

Note

This method is meaningful only for checkbox-like and radiobutton-like items.

AutoCheckParent(self, item, checked)

Traverses up the tree and checks/unchecks parent items.

Parameters:	item – an instance of `GenericTreeItem`; checked (bool) – `True` to check an item, `False` to uncheck it.

Note

This method is meaningful only for checkbox-like and radiobutton-like items.

AutoToggleChild(self, item)

Transverses the tree and toggles the items.

Parameters:	item – an instance of `GenericTreeItem`.

Note

This method is meaningful only for checkbox-like and radiobutton-like items.

CalculateLevel(self, item, dc, level, y, align=0)

Calculates the level of an item inside the tree hierarchy.

Parameters:

item – an instance of GenericTreeItem;
dc – an instance of DC;
level (integer) – the item level in the tree hierarchy;
y (integer) – the current vertical position inside the PyScrolledWindow;

align (integer) – an integer specifying the alignment type:

align Value	Description
0	No horizontal alignment of windows (in items with windows).
1	Windows (in items with windows) are aligned at the same horizontal position.
2	Windows (in items with windows) are aligned at the rightmost edge of`CustomTreeCtrl`.

Returns:

The new y vertical position inside the PyScrolledWindow.

CalculateLineHeight(self): Calculates the height of a line.

CalculatePositions(self): Calculates all the positions of the visible items.

CalculateSize(self, item, dc, level=-1, align=0)

Calculates overall position and size of an item.

Parameters:

item – an instance of GenericTreeItem;
dc – an instance of DC;
level (integer) – the item level in the tree hierarchy;

align (integer) – an integer specifying the alignment type:

align Value	Description
0	No horizontal alignment of windows (in items with windows).
1	Windows (in items with windows) are aligned at the same horizontal position.
2	Windows (in items with windows) are aligned at the rightmost edge of`CustomTreeCtrl`.

CheckChilds(self, item, checked=True)

Programatically check/uncheck item children.

Parameters:	item – an instance of `GenericTreeItem`; checked (bool) – `True` to check an item, `False` to uncheck it.

Note

This method is meaningful only for checkbox-like and radiobutton-like items.

Note

This method does not generate EVT_TREE_ITEM_CHECKING and EVT_TREE_ITEM_CHECKED events.

CheckItem(self, item, checked=True)

Actually checks/uncheks an item, sending (eventually) the two events EVT_TREE_ITEM_CHECKING and EVT_TREE_ITEM_CHECKED.

Parameters:	item – an instance of `GenericTreeItem`; checked (bool) – for a radiobutton-type item, `True` to check it, `False` to uncheck it. For a checkbox-type item, it can be one of `CHK_UNCHECKED` when the checkbox is unchecked, `CHK_CHECKED` when it is checked and `CHK_UNDETERMINED` when it’s in the undetermined state.

CheckItem2(self, item, checked=True, torefresh=False)

Used internally to avoid EVT_TREE_ITEM_CHECKED events.

Parameters:	item – an instance of `GenericTreeItem`; checked (bool) – `True` to check an item, `False` to uncheck it; torefresh (bool) – whether to redraw the item or not.

CheckSameLevel(self, item, checked=False)

Uncheck radio items which are on the same level of the checked one. Used internally.

Parameters:	item – an instance of `GenericTreeItem`; checked (bool) – `True` to check an item, `False` to uncheck it.

Note

This method is meaningful only for radiobutton-like items.

ChildrenClosing(self, item)

We are about to destroy the item children.

Parameters:	item – an instance of `GenericTreeItem`.

Collapse(self, item)

Collapse an item, sending a EVT_TREE_ITEM_COLLAPSING and EVT_TREE_ITEM_COLLAPSED events.

Parameters:	item – an instance of `GenericTreeItem`.
Raise :	Exception if you try to collapse a hidden root (i.e., when the `TR_HIDE_ROOT` style is set for `CustomTreeCtrl`).

CollapseAndReset(self, item)

Collapse the given item and deletes its children.

Parameters:	item – an instance of `GenericTreeItem`.

Delete(self, item)

Deletes an item.

Parameters:	item – an instance of `GenericTreeItem`.

Note

This method sends the EVT_TREE_DELETE_ITEM event.

DeleteAllItems(self): Deletes all items in the CustomTreeCtrl.

DeleteChildren(self, item)

Delete all the item’s children.

Parameters:	item – an instance of `GenericTreeItem`.

DeleteItemWindow(self, item)

Deletes the window associated to an item (if any).

Parameters:	item – an instance of `GenericTreeItem`.

DoGetBestSize(self)

Gets the size which best suits the window: for a control, it would be the minimal size which doesn’t truncate the control, for a panel - the same size as it would have after a call toFit().

Returns:	An instance of `Size`.

Note

Overridden from PyScrolledWindow.

DoInsertItem(self, parentId, previous, text, ct_type=0, wnd=None, image=-1, selImage=-1, data=None, separator=False)

Actually inserts an item in the tree.

Parameters:

parentId – an instance of GenericTreeItem representing the item’s parent;
previous (integer) – the index at which we should insert the item;
text (string) – the item text label;
ct_type (integer) – the item type (see SetItemType for a list of valid item types);
wnd – if not None, a non-toplevel window to show next to the item, any subclass of Window except top-level windows;
image (integer) – an index within the normal image list specifying the image to use for the item in unselected state;
selImage (integer) – an index within the normal image list specifying the image to use for the item in selected state; if image > -1 and selImage is -1, the same image is used for both selected and unselected items;
data (object) – associate the given Python object data with the item;
separator (bool) – True if the item is a separator, False otherwise.

Returns:

An instance of GenericTreeItem upon successful insertion.

Raise :

Exception in the following cases:

The item window is not None but the TR_HAS_VARIABLE_ROW_HEIGHT flag has not been set for CustomTreeCtrl;
The item has multiline text (with line-breaks in it) but the TR_HAS_VARIABLE_ROW_HEIGHT flag has not been set for CustomTreeCtrl;
The ct_type attribute is less than 0 or greater than 2;
The parent item is a separator;
The item is a separator but it has text or an associated window.

Note

Separator items should not have children, text labels or an associated window.

DoSelectItem(self, item, unselect_others=True, extended_select=False)

Actually selects/unselects an item, sending EVT_TREE_SEL_CHANGING and EVT_TREE_SEL_CHANGED events.

Parameters:	item – an instance of `GenericTreeItem`; unselect_others (bool) – if `True`, all the other selected items are unselected. extended_select (bool) – `True` if the `CustomTreeCtrl` is using the `TR_EXTENDED` style.

DrawHorizontalGradient(self, dc, rect, hasfocus)

Gradient fill from colour 1 to colour 2 from left to right.

Parameters:	dc – an instance of `DC`; rect (Rect) – the rectangle to be filled with the gradient shading; hasfocus (bool) – `True` if the main `CustomTreeCtrl` has focus, `False` otherwise.

DrawVerticalGradient(self, dc, rect, hasfocus)

Gradient fill from colour 1 to colour 2 from top to bottom.

Parameters:	dc – an instance of `DC`; rect (Rect) – the rectangle to be filled with the gradient shading; hasfocus (bool) – `True` if the main `CustomTreeCtrl` has focus, `False` otherwise.

DrawVistaRectangle(self, dc, rect, hasfocus)

Draws the selected item(s) with the Windows Vista style.

Parameters:	dc – an instance of `DC`; rect (Rect) – the rectangle to be filled with the gradient shading; hasfocus (bool) – `True` if the main `CustomTreeCtrl` has focus, `False` otherwise.

Edit(self, item)

Internal function. Starts the editing of an item label, sending a EVT_TREE_BEGIN_LABEL_EDIT event.

Parameters:	item – an instance of `GenericTreeItem`.

Warning

Separator-type items can not be edited.

EditLabel(self, item)

Starts editing an item label.

Parameters:	item – an instance of `GenericTreeItem`.

EnableChildren(self, item, enable=True)

Enables/disables the item children.

Parameters:	item – an instance of `GenericTreeItem`; enable (bool) – `True` to enable the children, `False` to disable them.

Note

This method is used internally.

EnableItem(self, item, enable=True, torefresh=True)

Enables/disables an item.

Parameters:	item – an instance of `GenericTreeItem`; enable (bool) – `True` to enable the item, `False` to disable it; torefresh (bool) – whether to redraw the item or not.

EnableSelectionGradient(self, enable=True)

Globally enables/disables drawing of gradient selections.

Parameters:	enable (bool) – `True` to enable gradient-style selections, `False` to disable it.

Note

Calling this method disables any Vista-style selection previously enabled.

EnableSelectionVista(self, enable=True)

Globally enables/disables drawing of Windows Vista selections.

Parameters:	enable (bool) – `True` to enable Vista-style selections, `False` to disable it.

Note

Calling this method disables any gradient-style selection previously enabled.

EnsureVisible(self, item)

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

Parameters:	item – an instance of `GenericTreeItem`.

Expand(self, item)

Expands an item, sending a EVT_TREE_ITEM_EXPANDING and EVT_TREE_ITEM_EXPANDED events.

Parameters:	item – an instance of `GenericTreeItem`.
Raise :	Exception if you try to expand a hidden root (i.e., when the `TR_HIDE_ROOT` style is set for `CustomTreeCtrl`).

ExpandAll(self)

Expands all CustomTreeCtrl items.

Note

This method suppresses the EVT_TREE_ITEM_EXPANDING and EVT_TREE_ITEM_EXPANDED events because expanding many items int the control would be too slow then.

ExpandAllChildren(self, item)

Expands all the items children of the input item.

Parameters:	item – an instance of `GenericTreeItem`.

Note

This method suppresses the EVT_TREE_ITEM_EXPANDING and EVT_TREE_ITEM_EXPANDED events because expanding many items int the control would be too slow then.

FillArray(self, item, array=[])

Internal function. Used to populate an array of selected items when the style TR_MULTIPLE is used.

Parameters:	item – an instance of `GenericTreeItem`; array (list) – a Python list containing the selected items.
Returns:	A Python list containing the selected items.

FindItem(self, idParent, prefixOrig)

Finds the first item starting with the given prefix after the given parent.

Parameters:	idParent (integer) – an instance of `GenericTreeItem`; prefixOrig (string) – a string containing the item text prefix.
Returns:	An instance of `GenericTreeItem` or `None` if no item has been found.

Freeze(self)

Freeze CustomTreeCtrl.

Note

GetAGWWindowStyleFlag(self)

Returns the CustomTreeCtrl style.

See also

The __init__ method for a list of possible style flags.

GetBackgroundImage(self)

Returns the CustomTreeCtrl background image (if any).

Returns:	An instance of `Bitmap` if a background image is present, `None` otherwise.

Note

At present, the background image can only be used in “tile” mode.

Todo

Support background images also in stretch and centered modes.

GetBorderPen(self)

Returns the pen used to draw the selected item border.

Returns:	An instance of `Pen`.

Note

The border pen is not used if the Windows Vista selection style is applied.

GetBoundingRect(self, item, textOnly=False)

Retrieves the rectangle bounding the item.

Parameters:	item – an instance of `GenericTreeItem`; textOnly (bool) – if `True`, only the rectangle around the item’s label will be returned, otherwise the item’s image is also taken into account.
Returns:	An instance of `Rect`.

Note

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.

GetButtonsImageList(self)

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

Returns:	An instance of `ImageList`.

GetChildrenCount(self, item, recursively=True)

Returns the item children count.

Parameters:	item – an instance of `GenericTreeItem`; recursively (bool) – if `True`, returns the total number of descendants, otherwise only one level of children is counted.

classmethod GetClassDefaultAttributes(self)

Returns:	An instance of `VisualAttributes`.

Note

Overridden from PyControl.

GetConnectionPen(self)

Returns the pen used to draw the connecting lines between items.

Returns:	An instance of `Pen`.

GetControlBmp(self, checkbox=True, checked=False, enabled=True, x=16, y=16)

Returns a native looking checkbox or radio button bitmap.

Parameters:	checkbox (bool) – `True` to get a checkbox image, `False` for a radiobutton one; checked (bool) – `True` if the control is marked, `False` if it is not; enabled (bool) – `True` if the control is enabled, `False` if it is not; x (integer) – the width of the bitmap; y (integer) – the height of the bitmap.
Returns:	An instance of `Bitmap`, representing a native looking checkbox or radiobutton.

GetCount(self): Returns the global number of items in the tree.

GetDisabledColour(self)

Returns the colour for items in a disabled state.

Returns:	An instance of `Colour`.

GetEditControl(self): Returns a pointer to the edit TreeTextCtrl if the item is being edited or None otherwise (it is assumed that no more than one item may be edited simultaneously).

GetFirstChild(self, item)

Returns the item’s first child and an integer value ‘cookie’. Call GetNextChild for the next child using this very ‘cookie’ return value as an input.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	A tuple with the first value being an instance of `GenericTreeItem` or `None` if there are no further children, and as second value an integer parameter ‘cookie’.

Note

This method returns None if there are no further children.

GetFirstGradientColour(self)

Returns the first gradient colour for gradient-style selections.

Returns:	An instance of `Colour`.

GetFirstVisibleItem(self)

Returns the first visible item.

Returns:	An instance of `GenericTreeItem` or `None` if there are no visible items.

GetGradientStyle(self)

Returns the gradient style for gradient-style selections.

Returns:	`0` for horizontal gradient-style selections, `1` for vertical gradient-style selections.

GetHilightFocusColour(self)

Returns the colour used to highlight focused selected items.

Returns:	An instance of `Colour`.

Note

This is used only if gradient and Windows Vista selection styles are disabled.

GetHilightNonFocusColour(self)

Returns the colour used to highlight unfocused selected items.

Returns:	An instance of `Colour`.

Note

This is used only if gradient and Windows Vista selection styles are disabled.

GetHyperTextFont(self)

Returns the font used to render hypertext items.

Returns:	An instance of `Font`.

Note

This method is meaningful only for hypertext-like items.

GetHyperTextNewColour(self)

Returns the colour used to render a non-visited hypertext item.

Returns:	An instance of `Colour`.

Note

This method is meaningful only for hypertext-like items.

GetHyperTextVisitedColour(self)

Returns the colour used to render a visited hypertext item.

Returns:	An instance of `Colour`.

Note

This method is meaningful only for hypertext-like items.

GetImageList(self)

Returns the normal image list associated with CustomTreeCtrl.

Returns:	An instance of `ImageList`.

GetImageListCheck(self)

Returns the image list used to build the check/radio buttons in CustomTreeCtrl.

Returns:	An instance of `ImageList`.

GetIndent(self): Returns the item indentation, in pixels.

GetItem3StateValue(self, item)

Gets the state of a 3-state checkbox item.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`CHK_UNCHECKED` when the checkbox is unchecked, `CHK_CHECKED` when it is checked and `CHK_UNDETERMINED` when it’s in the undetermined state.

Note

This method raises an exception when the function is used with a 2-state checkbox item.

Note

This method is meaningful only for checkbox-like items.

GetItemBackgroundColour(self, item)

Returns the item background colour.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `Colour`.

GetItemFont(self, item)

Returns the item font.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `Font`.

GetItemImage(self, item, which=TreeItemIcon_Normal)

Returns the item image.

Parameters:

item – an instance of GenericTreeItem;

which (integer) – can be one of the following bits:

Item State	Description
`TreeItemIcon_Normal`	To get the normal item image
`TreeItemIcon_Selected`	To get the selected item image (i.e. the image which is shown when the item is currently selected)
`TreeItemIcon_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)
`TreeItemIcon_SelectedExpanded`	To get the selected expanded image (which is shown when an expanded item is currently selected)

Returns:

An integer index that can be used to retrieve the item image inside a ImageList.

GetItemLeftImage(self, item)

Returns the item leftmost image, i.e. the image associated to the item on the leftmost part of the CustomTreeCtrl client area.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An integer index that can be used to retrieve the item leftmost image inside a `ImageList`.

GetItemParent(self, item)

Returns the item parent (can be None for root items).

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `GenericTreeItem` or `None` for root items.

GetItemSize(self, item)

Returns the horizontal space available in CustomTreeCtrl, in pixels, to draw this item.

Parameters:	item – an instance of `GenericTreeItem`.

New in version 0.9.3.

GetItemText(self, item)

Returns the item text.

Parameters:	item – an instance of `GenericTreeItem`.

GetItemTextColour(self, item)

Returns the item text colour or separator horizontal line colour.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `Colour`.

GetItemType(self, item)

Returns the item type.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An integer representing the item type.

See also

SetItemType for a description of valid item types.

GetItemVisited(self, item)

Returns whether an hypertext item was visited.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the hypertext item has been visited, `False` otherwise.

Note

This method is meaningful only for hypertext-like items.

GetItemWindow(self, item)

Returns the window associated to the item (if any).

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `Window` if the item has an associated window, `None` otherwise.

GetItemWindowEnabled(self, item)

Returns whether the window associated to the item is enabled.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the item has an associated window and this window is enabled, `False` in all other cases.

GetLastChild(self, item)

Returns the item last child.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `GenericTreeItem` or `None` if there are no further children.

GetLeftImageList(self)

Returns the image list for CustomTreeCtrl filled with images to be used on the leftmost part of the client area. Any item can have a leftmost image associated with it.

Returns:	An instance of `ImageList`.

GetLineHeight(self, item)

Returns the line height for the given item.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	the item height, in pixels.

GetMaxWidth(self, respect_expansion_state=True)

Returns the maximum width of the CustomTreeCtrl.

Parameters:	respect_expansion_state (bool) – if `True`, only the expanded items (and their children) will be measured. Otherwise all the items are expanded and their width measured.
Returns:	the maximum width of `CustomTreeCtrl`, in pixels.

GetNext(self, item)

Returns the next item. Only for internal use right now.

Returns:	An instance of `GenericTreeItem` or `None` if there are no further items.
Parameters:	item – an instance of `GenericTreeItem`.

GetNextActiveItem(self, item, down=True)

Returns the next active item. Used Internally at present.

Parameters:	item – an instance of `GenericTreeItem`; down (bool) – `True` to search downwards in the hierarchy for an active item, `False` to search upwards.
Returns:	An instance of `GenericTreeItem` if an active item has been found or `None` if none has been found.

GetNextChild(self, item, cookie)

Returns the item’s next child.

Parameters:	item – an instance of `GenericTreeItem`; cookie – a 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).
Returns:	A tuple with the first value being an instance of `GenericTreeItem` or `None` if there are no further children, and as second value an integer parameter ‘cookie’.

Note

This method returns None if there are no further children.

GetNextExpanded(self, item)

Returns the next expanded item after the input one.

Parameters:	item – an instance of `TreeListItem`.

GetNextSibling(self, item)

Returns the next sibling of an item.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `GenericTreeItem` or `None` if there are no further siblings.

Note

This method returns None if there are no further siblings.

GetNextVisible(self, item)

Returns the next visible item.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `GenericTreeItem` or `None` if there are no next visible items.

GetPrev(self, item)

Returns the previous item. Only for internal use right now.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `GenericTreeItem`

GetPrevExpanded(self, item)

Returns the previous expanded item before the input one.

Parameters:	item – an instance of `TreeListItem`.

GetPrevSibling(self, item)

Returns the previous sibling of an item.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `GenericTreeItem` or `None` if there are no further siblings.

Note

This method returns None if there are no further siblings.

GetPrevVisible(self, item)

Returns the previous visible item.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	An instance of `GenericTreeItem` or `None` if there are no previous visible items.

GetPyData(self, item)

Returns the data associated to an item.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	A Python object representing the item data, or `None` if no data has been assigned to this item.

GetRootItem(self): Returns the root item, an instance of GenericTreeItem.

GetSecondGradientColour(self)

Returns the second gradient colour for gradient-style selections.

Returns:	An instance of `Colour`.

GetSelection(self)

Returns the current selection.

Returns:	An instance of `GenericTreeItem`.

Note

This method is valid only with the style TR_SINGLE set. Use GetSelections for multiple-selections trees.

GetSelections(self)

Returns a list of selected items.

Note

This method can be used only if CustomTreeCtrl has the TR_MULTIPLE or TR_EXTENDED style set.

Returns:	A Python list containing the selected items, all instances of `GenericTreeItem`.

GetSeparatorColour(self, colour)

Returns the pen colour for separator-type items.

Returns:	An instance of `Colour` representing the separator pen colour.

GetSpacing(self): Returns the spacing between the start and the text, in pixels.

GetStateImageList(self)

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

Returns:	An instance of `ImageList`.

HandleHyperLink(self, item)

Handles the hyperlink items, sending the EVT_TREE_ITEM_HYPERLINK event.

Parameters:	item – an instance of `GenericTreeItem`.

HasAGWFlag(self, flag)

Returns True if CustomTreeCtrl has the flag bit set.

Parameters:	flag (integer) – any possible window style for `CustomTreeCtrl`.

See also

The __init__ method for the flag parameter description.

HasButtons(self)

Returns whether CustomTreeCtrl has the TR_HAS_BUTTONS flag set.

Returns:	`True` if `CustomTreeCtrl` has the `TR_HAS_BUTTONS` flag set, `False` otherwise.

HasChildren(self, item)

Returns whether an item has children or not.

Parameters:	item – an instance of `GenericTreeItem`.

HideWindows(self): Hides the windows associated to the items. Used internally.

HitTest(self, point, flags=0)

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

Parameters:

point – an instance of Point, a point to test for hits;

flags (integer) – a bitlist of the following values:

HitTest Flags	Hex Value	Description
`TREE_HITTEST_ABOVE`	0x1	Above the client area
`TREE_HITTEST_BELOW`	0x2	Below the client area
`TREE_HITTEST_NOWHERE`	0x4	No item has been hit
`TREE_HITTEST_ONITEMBUTTON`	0x8	On the button associated to an item
`TREE_HITTEST_ONITEMICON`	0x10	On the icon associated to an item
`TREE_HITTEST_ONITEMINDENT`	0x20	On the indent associated to an item
`TREE_HITTEST_ONITEMLABEL`	0x40	On the label (string) associated to an item
`TREE_HITTEST_ONITEM`	0x50	Anywhere on the item
`TREE_HITTEST_ONITEMRIGHT`	0x80	On the right of the label associated to an item
`TREE_HITTEST_TOLEFT`	0x200	On the left of the client area
`TREE_HITTEST_TORIGHT`	0x400	On the right of the client area
`TREE_HITTEST_ONITEMUPPERPART`	0x800	On the upper part (first half) of the item
`TREE_HITTEST_ONITEMLOWERPART`	0x1000	On the lower part (second half) of the item
`TREE_HITTEST_ONITEMCHECKICON`	0x2000	On the check/radio icon, if present

Returns:

A tuple with the first value being an instance of GenericTreeItem or None if no item has been hit-tested, and as second value an integer parameter flag.

Note

both the item (if any, None otherwise) and the flags are always returned as a tuple.

InsertItem(self, parentId, input, text, ct_type=0, wnd=None, image=-1, selImage=-1, data=None, separator=False)

Inserts an item after the given previous.

Returns:	An instance of `GenericTreeItem` upon successful insertion.

See also

InsertItemByIndex and InsertItemByItem for an explanation of the input parameters.

See also

DoInsertItem for possible exceptions generated by this method.

InsertItemByIndex(self, parentId, idPrevious, text, ct_type=0, wnd=None, image=-1, selImage=-1, data=None, separator=False)

Inserts an item after the given previous.

Parameters:

parentId – an instance of GenericTreeItem representing the item’s parent;
idPrevious – the index at which we should insert the new item;
text (string) – the item text label;
ct_type (integer) – the item type (see SetItemType for a list of valid item types);
wnd – if not None, a non-toplevel window to show next to the item, any subclass of Window;
image (integer) – an index within the normal image list specifying the image to use for the item in unselected state;
selImage (integer) – an index within the normal image list specifying the image to use for the item in selected state; if image > -1 and selImage is -1, the same image is used for both selected and unselected items;
data (object) – associate the given Python object data with the item;
separator (bool) – True if the item is a separator, False otherwise.

Returns:

An instance of GenericTreeItem upon successful insertion.

See also

DoInsertItem for possible exceptions generated by this method.

InsertItemByItem(self, parentId, idPrevious, text, ct_type=0, wnd=None, image=-1, selImage=-1, data=None, separator=False)

Inserts an item after the given previous.

Parameters:	parentId – an instance of `GenericTreeItem` representing the item’s parent; idPrevious – an instance of `GenericTreeItem` representing the previous item; text (string) – the item text label; ct_type (integer) – the item type (see `SetItemType` for a list of valid item types); wnd – if not `None`, a non-toplevel window to show next to the item, any subclass of `Window`; image (integer) – an index within the normal image list specifying the image to use for the item in unselected state; selImage (integer) – an index within the normal image list specifying the image to use for the item in selected state; if image > -1 and selImage is -1, the same image is used for both selected and unselected items; data (object) – associate the given Python object data with the item; separator (bool) – `True` if the item is a separator, `False` otherwise.
Returns:	An instance of `GenericTreeItem` upon successful insertion.
Raise :	Exception if the previous item is not a sibling.

See also

DoInsertItem for other possible exceptions generated by this method.

InsertSeparator(self, parentId, input)

Inserts a separator item after the given previous.

Returns:	An instance of `GenericTreeItem` upon successful insertion.

See also

InsertItemByIndex and InsertItemByItem for an explanation of the input parameters.

See also

DoInsertItem for possible exceptions generated by this method.

IsBold(self, item)

Returns whether the item font is bold or not.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the item has bold text, `False` otherwise.

IsDescendantOf(self, parent, item)

Checks if the given item is under another one in the tree hierarchy.

Parameters:	parent – an instance of `GenericTreeItem`, representing the possible parent of item; item – another instance of `GenericTreeItem`.
Returns:	`True` if item is a descendant of parent, `False` otherwise.

IsExpanded(self, item)

Returns whether the item is expanded or not.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the item is expanded, `False` if it is collapsed.

IsItalic(self, item)

Returns whether the item font is italic or not.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the item has italic text, `False` otherwise.

IsItem3State(self, item)

Returns whether or not the checkbox item is a 3-state checkbox.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if this checkbox is a 3-state checkbox, `False` if it’s a 2-state checkbox item.

Note

This method is meaningful only for checkbox-like items.

IsItemChecked(self, item)

Returns whether an item is checked or not.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the item is in a ‘checked’ state, `False` otherwise.

Note

This method is meaningful only for checkbox-like and radiobutton-like items.

IsItemEnabled(self, item)

Returns whether an item is enabled or disabled.

Parameters:	item – an instance of `GenericTreeItem`.

IsItemHyperText(self, item)

Returns whether an item is hypertext or not.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the item is hypertext-like, `False` otherwise.

IsItemSeparator(self, item)

Returns whether an item is of separator type or not.

Parameters:	item – an instance of `GenericTreeItem`.

IsSelected(self, item)

Returns whether the item is selected or not.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the item is selected, `False` otherwise.

IsVisible(self, item)

Returns whether the item is visible or not (i.e., its hierarchy is expanded enough to show the item).

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the item is visible, `False` if it is hidden.

ItemHasChildren(self, item)

Returns whether the item has children or not.

Parameters:	item – an instance of `GenericTreeItem`.
Returns:	`True` if the item has children, `False` otherwise.

OnAcceptEdit(self, item, value)

Called by TreeTextCtrl, to accept the changes and to send the EVT_TREE_END_LABEL_EDIT event.

Parameters:	item – an instance of `GenericTreeItem`; value (string) – the new value of the item label.
Returns:	`True` if the editing has not been vetoed, `False` otherwise.

OnCancelEdit(self, item)

Called by TreeTextCtrl, to cancel the changes and to send the EVT_TREE_END_LABEL_EDIT event.

Parameters:	item – an instance of `GenericTreeItem`.

OnCompareItems(self, item1, item2)

Returns whether 2 items have the same text.

Parameters:	item1 – an instance of `GenericTreeItem`; item2 – another instance of `GenericTreeItem`.
Returns:	The return value is negative if item1 < item2, zero if item1 == item2 and strictly positive if item1 < item2.

Note

The base class version compares items alphabetically.

OnDestroy(self, event)

Handles the EVT_WINDOW_DESTROY event for CustomTreeCtrl.

Parameters:	event – a `WindowDestroyEvent` event to be processed.

OnEditTimer(self): The timer for editing has expired. Start editing.

OnEraseBackground(self, event)

Handles the EVT_ERASE_BACKGROUND event for CustomTreeCtrl.

Parameters:	event – a `EraseEvent` event to be processed.

OnGetToolTip(self, event)

Process the tooltip event, to speed up event processing. Does not actually get a tooltip.

Parameters:	event – a `CommandTreeEvent` event to be processed.

OnInternalIdle(self)

This method may be used to do delayed painting, for example, and most implementations call Window.UpdateWindowUI in order to send update events to the window in idle time.

OnKeyDown(self, event)

Handles the EVT_KEY_DOWN event for CustomTreeCtrl, sending a EVT_TREE_KEY_DOWN event.

Parameters:	event – a `KeyEvent` event to be processed.

OnKillFocus(self, event)

Handles the EVT_KILL_FOCUS event for CustomTreeCtrl.

Parameters:	event – a `FocusEvent` event to be processed.

OnMouse(self, event)

Handles a bunch of EVT_MOUSE_EVENTS events for CustomTreeCtrl.

Parameters:	event – a `MouseEvent` event to be processed.

OnPaint(self, event)

Handles the EVT_PAINT event for CustomTreeCtrl.

Parameters:	event – a `PaintEvent` event to be processed.

OnSetFocus(self, event)

Handles the EVT_SET_FOCUS event for CustomTreeCtrl.

Parameters:	event – a `FocusEvent` event to be processed.

OnSize(self, event)

Handles the EVT_SIZE event for CustomTreeCtrl.

Parameters:	event – a `SizeEvent` event to be processed.

PaintItem(self, item, dc, level, align)

Actually draws an item.

Parameters:

item – an instance of GenericTreeItem;
dc – an instance of DC;
level (integer) – the item level in the tree hierarchy;

align (integer) – an integer specifying the alignment type:

align Value	Description
0	No horizontal alignment of windows (in items with windows).
1	Windows (in items with windows) are aligned at the same horizontal position.
2	Windows (in items with windows) are aligned at the rightmost edge of`CustomTreeCtrl`.

PaintLevel(self, item, dc, level, y, align)

Paint a level in the hierarchy of CustomTreeCtrl.

Parameters:

item – an instance of GenericTreeItem;
dc – an instance of DC;
level (integer) – the item level in the tree hierarchy;
y (integer) – the current vertical position in the PyScrolledWindow;

align (integer) – an integer specifying the alignment type:

align Value	Description
0	No horizontal alignment of windows (in items with windows).
1	Windows (in items with windows) are aligned at the same horizontal position.
2	Windows (in items with windows) are aligned at the rightmost edge of`CustomTreeCtrl`.

PrependItem(self, parent, text, ct_type=0, wnd=None, image=-1, selImage=-1, data=None, separator=False)

Prepends an item as a first child of parent.

Parameters:

parent – an instance of GenericTreeItem representing the item’s parent;
text (string) – the item text label;
ct_type (integer) – the item type (see SetItemType for a list of valid item types);
wnd – if not None, a non-toplevel window to show next to the item, any subclass of Window except top-level windows;
image (integer) – an index within the normal image list specifying the image to use for the item in unselected state;
selImage (integer) – an index within the normal image list specifying the image to use for the item in selected state; if image > -1 and selImage is -1, the same image is used for both selected and unselected items;
data (object) – associate the given Python object data with the item;
separator (bool) – True if the item is a separator, False otherwise.

Returns:

An instance of GenericTreeItem upon successful insertion.

See also

DoInsertItem for possible exceptions generated by this method.

PrependSeparator(self, parent)

Prepends a separator item as a first child of parent.

Parameters:	parent – an instance of `GenericTreeItem` representing the item’s parent.
Returns:	An instance of `GenericTreeItem` upon successful insertion.

See also

DoInsertItem for possible exceptions generated by this method.

RecurseOnChildren(self, item, maxwidth, respect_expansion_state)

Recurses over all the children of the spcified items, calculating their maximum width.

Parameters:	item – an instance of `GenericTreeItem`; maxwidth (integer) – the current maximum width for `CustomTreeCtrl`, in pixels; respect_expansion_state (bool) – if `True`, only the expanded items (and their children) will be measured. Otherwise all the items are expanded and their width measured.
Returns:	A tuple containing the maximum width and item height, in pixels.

RefreshItemWithWindows(self, item=None)

Refreshes the items with which a window is associated.

Parameters:	item – an instance of `GenericTreeItem`. If item is `None`, then the recursive refresh starts from the root node.

Note

This method is called only if the style TR_ALIGN_WINDOWS_RIGHT is used.

RefreshLine(self, item)

Refreshes a damaged item line.

Parameters:	item – an instance of `GenericTreeItem`.

RefreshSelected(self): Refreshes a damaged selected item line.

RefreshSelectedUnder(self, item)

Refreshes the selected items under the given item.

Parameters:	item – an instance of `GenericTreeItem`.

RefreshSubtree(self, item)

Refreshes a damaged subtree of an item.

Parameters:	item – an instance of `GenericTreeItem`.

ResetEditControl(self): Called by TreeTextCtrl when it marks itself for deletion.

ScrollTo(self, item)

Scrolls the specified item into view.

Parameters:	item – an instance of `GenericTreeItem`.

SelectAll(self)

Selects all the item in the tree.

Raise :	Exception if used without the `TR_EXTENDED` or `TR_MULTIPLE` style set.

Note

This method can be used only if CustomTreeCtrl has the TR_MULTIPLE or TR_EXTENDED style set.

SelectAllChildren(self, item)

Selects all the children of the given item.

Parameters:	item – an instance of `GenericTreeItem`.
Raise :	Exception if used without the `TR_EXTENDED` or `TR_MULTIPLE` style set.

Note

This method can be used only if CustomTreeCtrl has the TR_MULTIPLE or TR_EXTENDED style set.

SelectItem(self, item, select=True)

Selects/deselects an item.

Parameters:	item – an instance of `GenericTreeItem`; select (bool) – `True` to select an item, `False` to deselect it.

SelectItemRange(self, item1, item2)

Selects all the items between item1 and item2.

Parameters:	item1 – an instance of `GenericTreeItem`, representing the first item in the range to select; item2 – an instance of `GenericTreeItem`, representing the last item in the range to select.
Raise :	Exception if used without the `TR_EXTENDED` or `TR_MULTIPLE` style set.

Note

This method can be used only if CustomTreeCtrl has the TR_MULTIPLE or TR_EXTENDED style set.

SendDeleteEvent(self, item)

Actually sends the EVT_TREE_DELETE_ITEM event.

Parameters:	item – an instance of `GenericTreeItem`.

SetAGWWindowStyleFlag(self, agwStyle)

Sets the CustomTreeCtrl window style.

Parameters:	agwStyle (integer) – the new `CustomTreeCtrl` window style.

See also

The __init__ method for the agwStyle parameter description.

SetBackgroundColour(self, colour)

Changes the background colour of CustomTreeCtrl.

Parameters:	colour – the colour to be used as the background colour, pass `NullColour` to reset to the default colour.
Returns:	`False` if the underlying `PyScrolledWindow` does not accept the new colour, `True` otherwise.

Note

The background colour is usually painted by the default EraseEvent event handler function under Windows and automatically under GTK.

Note

Setting the background colour does not cause an immediate refresh, so you may wish to call Window.ClearBackground or Window.Refresh after calling this function.

Note

Overridden from PyScrolledWindow.

SetBackgroundImage(self, image)

Sets the CustomTreeCtrl background image.

Parameters:	image – if not `None`, an instance of `Bitmap`.

Note

At present, the background image can only be used in “tile” mode.

Todo

Support background images also in stretch and centered modes.

SetBorderPen(self, pen)

Sets the pen used to draw the selected item border.

Parameters:	pen – an instance of `Pen`.

Note

The border pen is not used if the Windows Vista selection style is applied.

SetButtonsImageList(self, imageList)

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

Parameters:	imageList – an instance of `ImageList`.

SetConnectionPen(self, pen)

Sets the pen used to draw the connecting lines between items.

Parameters:	pen – an instance of `Pen`.

SetDisabledColour(self, colour)

Sets the colour for items in a disabled state.

Parameters:	colour – a valid `Colour` instance.

SetFirstGradientColour(self, colour=None)

Sets the first gradient colour for gradient-style selections.

Parameters:	colour – if not `None`, a valid `Colour` instance. Otherwise, the colour is taken from the system value `SYS_COLOUR_HIGHLIGHT` .

SetFont(self, font)

Sets the CustomTreeCtrl font.

Parameters:	font – a valid `Font` instance.

Note

Overridden from PyScrolledWindow.

SetForegroundColour(self, colour)

Changes the foreground colour of CustomTreeCtrl.

Parameters:	colour – the colour to be used as the foreground colour, pass `NullColour` to reset to the default colour.
Returns:	`False` if the underlying `PyScrolledWindow` does not accept the new colour, `True` otherwise.

Note

Overridden from PyScrolledWindow.

SetGradientStyle(self, vertical=0)

Sets the gradient style for gradient-style selections.

Parameters:	vertical (integer) – `0` for horizontal gradient-style selections, `1` for vertical gradient-style selections.

SetHilightFocusColour(self, colour)

Sets the colour used to highlight focused selected items.

Parameters:	colour – a valid `Colour` instance.

Note

This is applied only if gradient and Windows Vista selection styles are disabled.

SetHilightNonFocusColour(self, colour)

Sets the colour used to highlight unfocused selected items.

Parameters:	colour – a valid `Colour` instance.

Note

This is applied only if gradient and Windows Vista selection styles are disabled.

SetHyperTextFont(self, font)

Sets the font used to render hypertext items.

Parameters:	font – a valid `Font` instance.

Note

This method is meaningful only for hypertext-like items.

SetHyperTextNewColour(self, colour)

Sets the colour used to render a non-visited hypertext item.

Parameters:	colour – a valid `Colour` instance.

Note

This method is meaningful only for hypertext-like items.

SetHyperTextVisitedColour(self, colour)

Sets the colour used to render a visited hypertext item.

Parameters:	colour – a valid `Colour` instance.

Note

This method is meaningful only for hypertext-like items.

SetImageList(self, imageList)

Sets the normal image list for CustomTreeCtrl.

Parameters:	imageList – an instance of `ImageList`.

SetImageListCheck(self, sizex, sizey, imglist=None)

Sets the checkbox/radiobutton image list.

Parameters:	sizex (integer) – the width of the bitmaps in the imglist, in pixels; sizey (integer) – the height of the bitmaps in the imglist, in pixels; imglist – an instance of `ImageList`.

SetIndent(self, indent)

Sets the indentation for CustomTreeCtrl.

Parameters:	indent (integer) – an integer representing the indentation for the items in the tree.

SetItem3State(self, item, allow)

Sets whether the item has a 3-state value checkbox assigned to it or not.

Parameters:	item – an instance of `GenericTreeItem`; allow (bool) – `True` to set an item as a 3-state checkbox, `False` to set it to a 2-state checkbox.
Returns:	`True` if the change was successful, `False` otherwise.

Note

This method is meaningful only for checkbox-like items.

SetItem3StateValue(self, item, state)

Sets the checkbox item to the given state.

Parameters:	item – an instance of `GenericTreeItem`; state (integer) – can be one of: `CHK_UNCHECKED` (check is off), `CHK_CHECKED` (check is on) or `CHK_UNDETERMINED` (check is mixed).

Note

This method raises an exception when the checkbox item is a 2-state checkbox and setting the state to CHK_UNDETERMINED .

Note

This method is meaningful only for checkbox-like items.

SetItemBackgroundColour(self, item, colour)

Sets the item background colour.

Parameters:	item – an instance of `GenericTreeItem`; colour – a valid `Colour` instance.

SetItemBold(self, item, bold=True)

Sets the item font as bold/unbold.

Parameters:	item – an instance of `GenericTreeItem`; bold (bool) – `True` to set the item font as bold, `False` otherwise.

SetItemDropHighlight(self, item, highlight=True)

Gives the item the visual feedback for drag and drop operations. This is useful when something is dragged from outside the CustomTreeCtrl.

Parameters:	item – an instance of `GenericTreeItem`; highlight (bool) – `True` to highlight the dragged items, `False` otherwise.

SetItemFont(self, item, font)

Sets the item font.

Parameters:	item – an instance of `GenericTreeItem`; font – a valid `Font` instance.

SetItemHasChildren(self, item, has=True)

Forces the appearance/disappearance of the button next to the item.

Parameters:	item – an instance of `GenericTreeItem`; has (bool) – `True` to have a button next to an item, `False` otherwise.

SetItemHyperText(self, item, hyper=True)

Sets whether the item is hypertext or not.

Parameters:	item – an instance of `GenericTreeItem`; hyper (bool) – `True` to have an item with hypertext behaviour, `False` otherwise.

SetItemImage(self, item, image, which=TreeItemIcon_Normal)

Sets the item image, depending on the item state.

Parameters:	item – an instance of `GenericTreeItem`; image (integer) – an index within the normal image list specifying the image to use for the item in the state specified by the which parameter; which (integer) – the item state.

See also

GetItemImage for an explanation of the which parameter.

SetItemItalic(self, item, italic=True)

Sets the item font as italic/non-italic.

Parameters:	item – an instance of `GenericTreeItem`; italic (bool) – `True` to set the item font as italic, `False` otherwise.

SetItemLeftImage(self, item, image)

Sets the item leftmost image, i.e. the image associated to the item on the leftmost part of the CustomTreeCtrl client area.

Parameters:	item – an instance of `GenericTreeItem`; image (integer) – an index within the left image list specifying the image to use for the item in the leftmost part of the client area.

SetItemText(self, item, text)

Sets the item text.

Parameters:	item – an instance of `GenericTreeItem`; text (string) – the new item label.
Raise :	Exception if the input item is a separator.

SetItemTextColour(self, item, colour)

Sets the item text colour or separator horizontal line colour.

Parameters:	item – an instance of `GenericTreeItem`; colour – a valid `Colour` instance.

SetItemType(self, item, ct_type)

Sets the item type.

Parameters:

item – an instance of GenericTreeItem;
ct_type (integer) – may be one of the following integers:

ct_typeValue Description

0 A normal item

1 A checkbox-like item

2 A radiobutton-type item

Note

Regarding radiobutton-type items (with ct_type = 2), the following approach is used:

All peer-nodes that are radiobuttons will be mutually exclusive. In other words, only one of a set of radiobuttons that share a common parent can be checked at once. If a radiobutton node becomes checked, then all of its peer radiobuttons must be unchecked.
If a radiobutton node becomes unchecked, then all of its child nodes will become inactive.

SetItemVisited(self, item, visited=True)

Sets whether an hypertext item was visited.

Parameters:	item – an instance of `GenericTreeItem`; visited (bool) – `True` to mark an hypertext item as visited, `False` otherwise.

Note

This method is meaningful only for hypertext-like items.

SetItemWindow(self, item, wnd)

Sets the window for the given item.

Parameters:	item – an instance of `GenericTreeItem`; wnd – if not `None`, a non-toplevel window to be displayed next to the item.
Raise :	Exception if the input item is a separator and wnd is not `None`.

SetItemWindowEnabled(self, item, enable=True)

Enables/disables the window associated to the item.

Parameters:	item – an instance of `GenericTreeItem`; enable (bool) – `True` to enable the associated window, `False` to disable it.

SetLeftImageList(self, imageList)

Sets the image list for CustomTreeCtrl filled with images to be used on the leftmost part of the client area. Any item can have a leftmost image associated with it.

Parameters:	imageList – an instance of `ImageList`.

SetPyData(self, item, data)

Sets the data associated to an item.

Parameters:	item – an instance of `GenericTreeItem`; data (object) – can be any Python object.

SetSecondGradientColour(self, colour=None)

Sets the second gradient colour for gradient-style selections.

Parameters:	colour – if not `None`, a valid `Colour` instance. Otherwise, the colour generated is a slightly darker version of the `CustomTreeCtrl` background colour.

SetSeparatorColour(self, colour)

Sets the pen colour for separator-type items.

Parameters:	colour – a valid instance of `Colour`.

SetSpacing(self, spacing)

Sets the spacing between items in CustomTreeCtrl.

Parameters:	spacing (integer) – an integer representing the spacing between items in the tree.

SetStateImageList(self, imageList)

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

Parameters:	imageList – an instance of `ImageList`.

ShouldInheritColours(self)

Return True from here to allow the colours of this window to be changed by InheritAttributes, returning False forbids inheriting them from the parent window.

The base class version returns False, but this method is overridden in Control where it returns True.

CustomTreeCtrl does not inherit colours from anyone.

SortChildren(self, item)

Sorts the children of the given item using the OnCompareItems method of CustomTreeCtrl.

Parameters:	item – an instance of `GenericTreeItem`.

Note

You should override the OnCompareItems method in your derived class to change the sort order (the default is ascending case-sensitive alphabetical order).

TagAllChildrenUntilLast(self, crt_item, last_item, select): Used internally.

TagNextChildren(self, crt_item, last_item, select): Used internally.

Thaw(self)

Thaw CustomTreeCtrl.

Reenables window updating after a previous call to Freeze. To really thaw the control, it must be called exactly the same number of times as Freeze.

Raise :	Exception if `Thaw` has been called without an un-matching `Freeze`.

TileBackground(self, dc)

Tiles the background image to fill all the available area.

Parameters:	dc – an instance of `DC`.

Todo

Support background images also in stretch and centered modes.

Toggle(self, item)

Toggles the item state (collapsed/expanded).

Parameters:	item – an instance of `GenericTreeItem`.

ToggleItemSelection(self, item)

Toggles the item selection.

Parameters:	item – an instance of `GenericTreeItem`.

UnCheckRadioParent(self, item, checked=False)

Used internally to handle radio node parent correctly.

Parameters:	item – an instance of `GenericTreeItem`; checked (bool) – `True` to check an item, `False` to uncheck it.

Unselect(self): Unselects the current selection.

UnselectAll(self): Unselect all the items.

UnselectAllChildren(self, item)

Unselects all the children of the given item.

Parameters:	item – an instance of `GenericTreeItem`.

时间： 2024-10-14 00:21:57

wxpython CustomTreeCtrl

Inheritance Diagram

Control Appearance

Known Superclasses

Methods Summary

Class API

Methods

Inheritance Diagram

Control Appearance

Known Superclasses

Methods Summary

Class API

Methods

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