Struct gtk4::TreeViewBuilder [−][src]
pub struct TreeViewBuilder { /* fields omitted */ }
Expand description
A builder-pattern type to construct TreeView
objects.
Implementations
Create a new TreeViewBuilder
.
The activate-on-single-click property specifies whether the “row-activated” signal will be emitted after a single click.
Setting the ::fixed-height-mode property to true
speeds up
TreeView
by assuming that all rows have the same height.
Only enable this option if all rows are the same height.
Please see TreeViewExt::set_fixed_height_mode()
for more
information on this option.
Enables or disables the hover expansion mode of tree_view
.
Hover expansion makes rows expand or collapse if the pointer moves
over them.
This mode is primarily intended for treeviews in popups, e.g.
in ComboBox
or EntryCompletion
.
Enables or disables the hover selection mode of tree_view
.
Hover selection makes the selected row follow the pointer.
Currently, this works only for the selection modes
SelectionMode::Single
and SelectionMode::Browse
.
This mode is primarily intended for treeviews in popups, e.g.
in ComboBox
or EntryCompletion
.
Extra indentation for each level.
true
if the view has expanders.
Whether the widget or any of its descendents can accept the input focus.
This property is meant to be set by widget implementations, typically in their instance init function.
Whether the widget can receive pointer events.
A list of css classes applied to this widget.
The name of this widget in the CSS tree.
This property is meant to be set by widget implementations, typically in their instance init function.
Whether the widget should grab focus when it is clicked with the mouse.
This property is only relevant for widgets that can take focus.
Whether this widget itself will accept the input focus.
How to distribute horizontal space if widget gets extra space.
Enables or disables the emission of the ::query-tooltip signal on widget
.
A value of true
indicates that widget
can have a tooltip, in this case
the widget will be queried using signal::Widget::query-tooltip
to
determine whether it will provide a tooltip or not.
Override for height request of the widget.
If this is -1, the natural request will be used.
Whether to use the hexpand
property.
The LayoutManager
instance to use to compute the preferred size
of the widget, and allocate its children.
This property is meant to be set by widget implementations, typically in their instance init function.
Margin on bottom side of widget.
This property adds margin outside of the widget’s normal size
request, the margin will be added in addition to the size from
WidgetExt::set_size_request()
for example.
Margin on end of widget, horizontally.
This property supports left-to-right and right-to-left text directions.
This property adds margin outside of the widget’s normal size
request, the margin will be added in addition to the size from
WidgetExt::set_size_request()
for example.
Margin on start of widget, horizontally.
This property supports left-to-right and right-to-left text directions.
This property adds margin outside of the widget’s normal size
request, the margin will be added in addition to the size from
WidgetExt::set_size_request()
for example.
Margin on top side of widget.
This property adds margin outside of the widget’s normal size
request, the margin will be added in addition to the size from
WidgetExt::set_size_request()
for example.
How content outside the widget’s content area is treated.
This property is meant to be set by widget implementations, typically in their instance init function.
Whether the widget will receive the default action when it is focused.
Sets the text of tooltip to be the given string, which is marked up with Pango markup.
Also see Tooltip::set_markup()
.
This is a convenience property which will take care of getting the
tooltip shown if the given string is not None
:
property::Widget::has-tooltip
will automatically be set to true
and there will be taken care of signal::Widget::query-tooltip
in
the default signal handler.
Note that if both property::Widget::tooltip-text
and
property::Widget::tooltip-markup
are set, the last one wins.
Sets the text of tooltip to be the given string.
Also see Tooltip::set_text()
.
This is a convenience property which will take care of getting the
tooltip shown if the given string is not None
:
property::Widget::has-tooltip
will automatically be set to true
and there will be taken care of signal::Widget::query-tooltip
in
the default signal handler.
Note that if both property::Widget::tooltip-text
and
property::Widget::tooltip-markup
are set, the last one wins.
How to distribute vertical space if widget gets extra space.
Whether to use the vexpand
property.
Override for width request of the widget.
If this is -1, the natural request will be used.
The accessible role of the given Accessible
implementation.
The accessible role cannot be changed once set.
Horizontal Adjustment
of the scrollable widget.
This adjustment is shared between the scrollable widget and its parent.
Determines when horizontal scrolling should start.
Vertical Adjustment
of the scrollable widget.
This adjustment is shared between the scrollable widget and its parent.
Determines when vertical scrolling should start.
Trait Implementations
Returns the “default value” for a type. Read more
Auto Trait Implementations
impl RefUnwindSafe for TreeViewBuilder
impl !Send for TreeViewBuilder
impl !Sync for TreeViewBuilder
impl Unpin for TreeViewBuilder
impl UnwindSafe for TreeViewBuilder
Blanket Implementations
Mutably borrows from an owned value. Read more