_TreeView (gb.qt4)

This class is the internal base class of ListView, TreeView and ColumnView controls.

This class is based on GridView which internally uses a ScrollArea with Tracking = True. So controls that inherit it will always track the mouse even if you set Tracking = False on the control.

This class inherits UserControl.

This class is virtual.

This class is not creatable.

This class acts like a read-only array.

Properties

Available	Returns if the Item property is valid.
Border	Returns or sets if the control has a border.
ClientH	A synonymous for the ClientHeight property.
ClientHeight	Returns the height of the internal area containing the items.
ClientW	A synonymous for the ClientWidth property.
ClientWidth	Returns the width of the internal area containing the items.
Compare	Use this property to return the result of the comparison of a Compare event.
Count	Returns the number of items in the view.
Current	Returns the current item, i.e. the item that has the focus, or that is selected in single selection mode.
Editable	Returns if the items are editables by default, i.e. if they can be renamed by the user when he clicks on them.
Grid	Since 3.20 Return or set if a grid is displayed.
Highlight	Since 3.19 Return or set if the item under the mouse cursor is highlighted.
Indent	Since 3.16 Return the size of tree indentation in pixels.
Item	Returns the item pointed by the internal cursor, or NULL if the internal cursor is not available.
Key	Returns the key of the Current item.
Keys	Since 3.12 Return a list of all items keys
Mode	Returns or sets the selection mode.
Renaming	Return if an item is being renamed.
ScrollBar	Returns or sets which scrollbars are displayed.
ScrollH	A synonymous of ScrollHeight.
ScrollHeight	Returns the contents height.
ScrollW	A synonymous of ScrollWidth.
ScrollWidth	Returns the contents width.
ScrollX	Returns or sets the horizontal scrolling position.
ScrollY	Returns or sets the vertical scrolling position.
Selected	Return if at least one item is selected.
Selection	Return the keys of all selected rows as a string array.
ShowCheck	Since 3.15 Return or set if selection is indicated by check boxes and radio buttons, or by highlighting the items.
Sorted	Indicates if the items are sorted.

Inherited properties

Action	Returns or sets the action string associated with the control.
Background	Returns or sets the background color used by the control.
Children	Returns a collection of each control included in the container.
ClientX	Returns the position of the left border of the area containing the controls.
ClientY	Returns the position of the top border of the area containing the controls.
Cursor	Use this property for assigning a custom cursor to a control.
Design	Indicates that the control is in design mode.
Direction	Since 3.17 Return or set the control text direction.
Drop	Returns or sets if a control accepts drops.
Enabled	Indicates that the control is enabled.
Expand	Returns or sets if a control will expand if included in a container that arranges its contents.
Font	Returns or sets the font used to draw text in the control.
Foreground	Returns or sets the foreground color used by the control.
H	A synonymous for the Height property.
Handle	Returns the internal X11 window handle of the control.
HasFocus	Returns whether the control has the focus.
Height	Returns or sets the height of the control.
Hovered	Returns whether the mouse cursor is inside the control.
Id	A synonymous for the Handle property.
Ignore	Returns or sets if a control must be ignored when its parent arranges its children.
Left	Returns or sets the position of the left border of the control relative to its parent.
Mouse	Returns or sets the appearence of the cursor when it points inside the control.
Name	Returns or sets the name of the control.
Next	Returns the next control having the same parent.
NoAnimation	Since 3.20 Return or set if the possible animations of a control are disabled.
NoTabFocus	Return or set if a control cannot be focused with the TAB key.
Parent	Returns the control container.
PopupMenu	Return or set the name of the menu that will be popped-up when the user presses the right mouse button or the keyboard `MENU` key.
Previous	Returns the previous control having the same parent.
Proxy	Return or set the "proxy" of a control.
ProxyFor	Return which control that control is a proxy for.
RightToLeft	Return if the control is right to left oriented.
ScreenX	Returns the position of the left border of the control in screen coordinates.
ScreenY	Returns the position of the top border of the control in screen coordinates.
Tag	Returns or sets the control tag.
Tooltip	Returns or sets the tooltip shown when the mouse stays on the control for a short time.
Top	Returns or sets the position of the top border of the control relative to its parent.
TopLevel	Since 3.21 Return the top-level window this control belongs to.
Tracking	Returns or sets if the control will receive MouseMove events.
Visible	Indicates if the control is visible or not.
W	A synonymous for the Width property.
Width	Returns or sets the width of the control.
Window	Returns the window that contains the control.
X	Returns or sets the position of the left border of the control relative to its parent.
Y	Returns or sets the position of the top border of the control relative to its parent.

Methods

Clear	Clears the view.
CollapseAll	Since 3.19 Collapse all tree items recursively.
Exist	Returns if an item is associated with the given key.
ExpandAll	Since 3.19 Expand all tree items recursively.
Filter	Since 3.19 Filter the items according to the Filter event.
FindAt	Finds an item from coordinates relative to the control.
MoveAbove	Moves the internal cursor one visible item above.
MoveBack	When one of the other Move* methods has failed, you can use this one to move the internal cursor back to its position before the move.
MoveBelow	Moves the internal cursor one visible item below.
MoveChild	Moves the internal cursor to the first child item.
MoveCurrent	Moves the internal cursor to the current item.
MoveFirst	Moves the internal cursor to the first item of the view.
MoveLast	Moves the internal cursor to the last item of the view.
MoveNext	Moves the internal cursor to the next child item.
MoveParent	Moves the internal cursor to the parent item.
MovePrevious	Moves the internal cursor to the previous sibling item.
MoveTo	Moves the internal cursor to a specified item.
Remove	Removes an item from the view.
Scroll	Scroll the contents to the given position.
SelectAll	Select all items in the view.
UnSelectAll	Unselect all selected items.

Inherited methods

Delete	Destroys the control.
Drag	Starts a drag & drop process.
FindChild	Since 3.4 Finds the first child control pointed by the X and Y coordinates.
Grab	Grab the keyboard and the mouse so that all keyboard and mouse events are received by the control.
Hide	Hides the control.
Lower	Sends the control to the background of its parent.
Move	Moves and/or resizes the control.
MoveScaled	Moves and/or resizes the control.
Raise	Sends the control to the foreground of its parent.
Refresh	Trigger a redraw of the control.
Reparent	Changes the container of a control.
Resize	Resizes the control.
ResizeScaled	Resizes the control.
SetFocus	Gives the focus to the control.
Show	Shows the control.

Events

Activate	Raised when an item is double-clicked.
BeforeSort	Since 3.12 This event is raised before automatically sorting the items
Cancel	This event is raised when the user has canceled an in-place item renaming.
Click	Raised when an item is clicked.
Collapse	Raised when an item is collapsed.
Compare	This event is raised when two items must be compared.
Draw	Since 3.16 This event allows to customize the drawing of a specific item.
Expand	Raised when an item is expanded.
Filter	Since 3.19 This event is raised to filter a specific item.
Rename	Raised when the user has just renamed an item.
Scroll	Since 3.14 This event is raised when the view scrolls.
Select	Raised when the selection of the view has changed.

Inherited events

Arrange	This event is raised when a container has just finished arranging its contents.
BeforeArrange	This event is raised just before a container arranges its contents.
DblClick	Raised when the user quickly clicks twice on the control.
Drag	This event is raised when the mouse enters the control during a drag & drop process.
DragLeave	This event is raised when the mouse leaves the control during a drag & drop operation.
DragMove	This event is raised while the mouse moves inside the control during a drag & drop process.
Drop	This event is raised when a drag is dropped in the control.
Enter	Raised when the mouse enters the control.
GotFocus	Raised when the control has got the focus.
KeyPress	Raised when a key is pressed while the control has the focus.
KeyRelease	Raised when a key is released while the control has the focus.
Leave	Raised when the mouse leaves the control.
LostFocus	Raised when the control has lost the focus.
Menu	Raised when the user clicks on the control with the right mouse button, or if it hits the `MENU` key.
MouseDown	Raised when a mouse button is pressed while the cursor is inside the control.
MouseDrag	This event is raised when a drag operation should be started.
MouseMove	Raised when the mouse moves inside the control while a mouse button is pressed.
MouseUp	Raised when a mouse button is depressed while the cursor is inside the control.
MouseWheel	This event is raised when the user moves or presses the mouse wheel while the mouse is inside the control.
NewChild	This event is raised when a new child Control has just been inserted into the container.