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Button

Struct Button 

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pub struct Button<'a> { /* private fields */ }
Expand description

Clickable button with text.

See also Ui::button.


if ui.add(egui::Button::new("Click me")).clicked() {
    do_stuff();
}

// A greyed-out and non-interactive button:
if ui.add_enabled(false, egui::Button::new("Can't click this")).clicked() {
    unreachable!();
}

Implementations§

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impl<'a> Button<'a>

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pub fn new(atoms: impl IntoAtoms<'a>) -> Button<'a>

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pub fn selectable(selected: bool, atoms: impl IntoAtoms<'a>) -> Button<'a>

Show a selectable button.

Equivalent to:

let selected = true;
ui.add(Button::new("toggle me").selected(selected).frame_when_inactive(!selected).frame(true));

See also:

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pub fn image(image: impl Into<Image<'a>>) -> Button<'a>

Creates a button with an image. The size of the image as displayed is defined by the provided size.

Note: In contrast to Button::new, this limits the image size to the default font height (using crate::AtomExt::atom_max_height_font_size).

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pub fn image_and_text( image: impl Into<Image<'a>>, text: impl Into<WidgetText>, ) -> Button<'a>

Creates a button with an image to the left of the text.

Note: In contrast to Button::new, this limits the image size to the default font height (using crate::AtomExt::atom_max_height_font_size).

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pub fn opt_image_and_text( image: Option<Image<'a>>, text: Option<WidgetText>, ) -> Button<'a>

Create a button with an optional image and optional text.

Note: In contrast to Button::new, this limits the image size to the default font height (using crate::AtomExt::atom_max_height_font_size).

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pub fn wrap_mode(self, wrap_mode: TextWrapMode) -> Button<'a>

Set the wrap mode for the text.

By default, crate::Ui::wrap_mode will be used, which can be overridden with crate::Style::wrap_mode.

Note that any \n in the text will always produce a new line.

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pub fn wrap(self) -> Button<'a>

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pub fn truncate(self) -> Button<'a>

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pub fn fill(self, fill: impl Into<Color32>) -> Button<'a>

Override background fill color. Note that this will override any on-hover effects. Calling this will also turn on the frame.

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pub fn stroke(self, stroke: impl Into<Stroke>) -> Button<'a>

Override button stroke. Note that this will override any on-hover effects. Calling this will also turn on the frame.

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pub fn small(self) -> Button<'a>

Make this a small button, suitable for embedding into text.

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pub fn frame(self, frame: bool) -> Button<'a>

Turn off the frame

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pub fn frame_when_inactive(self, frame_when_inactive: bool) -> Button<'a>

If false, the button will not have a frame when inactive.

Default: true.

Note: When Self::frame (or ui.visuals().button_frame) is false, this setting has no effect.

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pub fn sense(self, sense: Sense) -> Button<'a>

By default, buttons senses clicks. Change this to a drag-button with Sense::drag().

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pub fn min_size(self, min_size: Vec2) -> Button<'a>

Set the minimum size of the button.

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pub fn corner_radius(self, corner_radius: impl Into<CornerRadius>) -> Button<'a>

Set the rounding of the button.

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pub fn rounding(self, corner_radius: impl Into<CornerRadius>) -> Button<'a>

👎Deprecated:

Renamed to corner_radius

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pub fn image_tint_follows_text_color( self, image_tint_follows_text_color: bool, ) -> Button<'a>

If true, the tint of the image is multiplied by the widget text color.

This makes sense for images that are white, that should have the same color as the text color. This will also make the icon color depend on hover state.

Default: false.

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pub fn shortcut_text(self, shortcut_text: impl IntoAtoms<'a>) -> Button<'a>

Show some text on the right side of the button, in weak color.

Designed for menu buttons, for setting a keyboard shortcut text (e.g. Ctrl+S).

The text can be created with crate::Context::format_shortcut.

See also Self::right_text.

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pub fn left_text(self, left_text: impl IntoAtoms<'a>) -> Button<'a>

Show some text on the left side of the button.

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pub fn right_text(self, right_text: impl IntoAtoms<'a>) -> Button<'a>

Show some text on the right side of the button.

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pub fn selected(self, selected: bool) -> Button<'a>

If true, mark this button as “selected”.

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pub fn gap(self, gap: f32) -> Button<'a>

Set the gap between atoms.

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pub fn atom_ui(self, ui: &mut Ui) -> AtomLayoutResponse

Show the button and return a AtomLayoutResponse for painting custom contents.

Trait Implementations§

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impl<'a> ReButtonExt<'a> for Button<'a>

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fn primary(self) -> ReButton<'a>

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fn secondary(self) -> ReButton<'a>

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impl Widget for Button<'_>

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fn ui(self, ui: &mut Ui) -> Response

Allocate space, interact, paint, and return a Response. Read more

Auto Trait Implementations§

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impl<'a> Freeze for Button<'a>

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impl<'a> !RefUnwindSafe for Button<'a>

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impl<'a> !Send for Button<'a>

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impl<'a> !Sync for Button<'a>

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impl<'a> Unpin for Button<'a>

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impl<'a> UnsafeUnpin for Button<'a>

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impl<'a> !UnwindSafe for Button<'a>

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impl<T> Any for T
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fn boxed_local(self) -> Box<dyn FnOnce(&mut Ui) -> Response + 'a>

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fn enabled(self, enabled: bool) -> OnResponse<'a, Self::Target>

Enable / disable the widget.
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fn on_response( self, on_response: impl FnOnce(Response) -> Response + 'a, ) -> OnResponse<'a, Self::Target>

Add a callback that is called with the response of the widget once it’s added.
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fn on_click(self, on_click: impl FnOnce() + 'a) -> OnResponse<'a, Self::Target>

Add a callback that is called when the widget is clicked.
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fn on_hover_ui( self, on_hover_ui: impl FnOnce(&mut Ui) + 'a, ) -> OnResponse<'a, Self::Target>

Add some tooltip UI to the widget.
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fn on_disabled_hover_ui( self, on_hover_ui: impl FnOnce(&mut Ui) + 'a, ) -> OnResponse<'a, Self::Target>

Add some tooltip UI to the widget when it’s disabled.
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fn on_hover_text( self, hover_text: impl Into<WidgetText> + 'a, ) -> OnResponse<'a, Self::Target>

Add some tooltip text to the widget.
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Add some tooltip text to the widget when it’s disabled.
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fn on_menu( self, add_contents: impl FnOnce(&mut Ui) + 'a, ) -> OnResponse<'a, Self::Target>

Show a menu on click.
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fn on_custom_menu( self, customize: impl FnOnce(Popup<'_>) -> Popup<'_> + 'a, add_contents: impl FnOnce(&mut Ui) + 'a, ) -> OnResponse<'a, Self::Target>

Show a custom menu on click.
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