#[repr(transparent)]pub struct Tooltip { /* private fields */ }Expand description
Tooltip is an object representing a widget tooltip.
Basic tooltips can be realized simply by using
WidgetExt::set_tooltip_text() or
WidgetExt::set_tooltip_markup() without
any explicit tooltip object.
When you need a tooltip with a little more fancy contents,
like adding an image, or you want the tooltip to have different
contents per TreeView row or cell, you will have to do a
little more work:
-
Set the
property::Widget::has-tooltipproperty totrue. This will make GTK monitor the widget for motion and related events which are needed to determine when and where to show a tooltip. -
Connect to the
signal::Widget::query-tooltipsignal. This signal will be emitted when a tooltip is supposed to be shown. One of the arguments passed to the signal handler is aTooltipobject. This is the object that we are about to display as a tooltip, and can be manipulated in your callback using functions likeset_icon(). There are functions for setting the tooltip’s markup, setting an image from a named icon, or even putting in a custom widget. -
Return
truefrom your ::query-tooltip handler. This causes the tooltip to be show. If you returnfalse, it will not be shown.
Implements
Implementations§
source§impl Tooltip
impl Tooltip
sourcepub fn set_custom(&self, custom_widget: Option<&impl IsA<Widget>>)
pub fn set_custom(&self, custom_widget: Option<&impl IsA<Widget>>)
Replaces the widget packed into the tooltip with
@custom_widget. @custom_widget does not get destroyed when the tooltip goes
away.
By default a box with a Image and Label is embedded in
the tooltip, which can be configured using gtk_tooltip_set_markup()
and gtk_tooltip_set_icon().
custom_widget
sourcepub fn set_icon(&self, paintable: Option<&impl IsA<Paintable>>)
pub fn set_icon(&self, paintable: Option<&impl IsA<Paintable>>)
sourcepub fn set_icon_from_gicon(&self, gicon: Option<&impl IsA<Icon>>)
pub fn set_icon_from_gicon(&self, gicon: Option<&impl IsA<Icon>>)
sourcepub fn set_icon_from_icon_name(&self, icon_name: Option<&str>)
pub fn set_icon_from_icon_name(&self, icon_name: Option<&str>)
sourcepub fn set_markup(&self, markup: Option<&str>)
pub fn set_markup(&self, markup: Option<&str>)
sourcepub fn set_text(&self, text: Option<&str>)
pub fn set_text(&self, text: Option<&str>)
Sets the text of the tooltip to be @text.
If @text is None, the label will be hidden.
See also set_markup().
text
a text string
sourcepub fn set_tip_area(&self, rect: &Rectangle)
pub fn set_tip_area(&self, rect: &Rectangle)
Sets the area of the widget, where the contents of this tooltip apply,
to be @rect (in widget coordinates). This is especially useful for
properly setting tooltips on TreeView rows and cells, GtkIconViews,
etc.
For setting tooltips on TreeView, please refer to the convenience
functions for this: gtk_tree_view_set_tooltip_row() and
gtk_tree_view_set_tooltip_cell().
rect
Trait Implementations§
source§impl Ord for Tooltip
impl Ord for Tooltip
source§impl<OT: ObjectType> PartialOrd<OT> for Tooltip
impl<OT: ObjectType> PartialOrd<OT> for Tooltip
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for
self and other) and is used by the <=
operator. Read moresource§impl StaticType for Tooltip
impl StaticType for Tooltip
source§fn static_type() -> Type
fn static_type() -> Type
Returns the type identifier of
Self.impl Eq for Tooltip
Auto Trait Implementations§
impl RefUnwindSafe for Tooltip
impl !Send for Tooltip
impl !Sync for Tooltip
impl Unpin for Tooltip
impl UnwindSafe for Tooltip
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