Struct egui::UiBuilder

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pub struct UiBuilder {
    pub id_salt: Option<Id>,
    pub ui_stack_info: UiStackInfo,
    pub layer_id: Option<LayerId>,
    pub max_rect: Option<Rect>,
    pub layout: Option<Layout>,
    pub disabled: bool,
    pub invisible: bool,
    pub sizing_pass: bool,
    pub style: Option<Arc<Style>>,
    pub sense: Option<Sense>,
}

Expand description

Build a Ui as the child of another Ui.

By default, everything is inherited from the parent, except for max_rect which by default is set to the parent Ui::available_rect_before_wrap.

Fields§

§id_salt: Option<Id>§ui_stack_info: UiStackInfo§layer_id: Option<LayerId>§max_rect: Option<Rect>§layout: Option<Layout>§disabled: bool§invisible: bool§sizing_pass: bool§style: Option<Arc<Style>>§sense: Option<Sense>

Implementations§

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impl UiBuilder

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pub fn new() -> Self

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pub fn id_salt(self, id_salt: impl Hash) -> Self

Seed the child Ui with this id_salt, which will be mixed with the Ui::id of the parent.

You should give each Ui an id_salt that is unique within the parent, or give it none at all.

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pub fn ui_stack_info(self, ui_stack_info: UiStackInfo) -> Self

Provide some information about the new Ui being built.

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pub fn layer_id(self, layer_id: LayerId) -> Self

Show the Ui in a different LayerId from its parent.

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pub fn max_rect(self, max_rect: Rect) -> Self

Set the max rectangle, within which widgets will go.

New widgets will try to fit within this rectangle.

Text labels will wrap to fit within max_rect. Separator lines will span the max_rect.

If a new widget doesn’t fit within the max_rect then the Ui will make room for it by expanding both min_rect and

If not set, this will be set to the parent Ui::available_rect_before_wrap.

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pub fn layout(self, layout: Layout) -> Self

Override the layout.

Will otherwise be inherited from the parent.

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pub fn disabled(self) -> Self

Make the new Ui disabled, i.e. grayed-out and non-interactive.

Note that if the parent Ui is disabled, the child will always be disabled.

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pub fn invisible(self) -> Self

Make the contents invisible.

Will also disable the Ui (see Self::disabled).

If the parent Ui is invisible, the child will always be invisible.

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pub fn sizing_pass(self) -> Self

Set to true in special cases where we do one frame where we size up the contents of the Ui, without actually showing it.

If the sizing_pass flag is set on the parent, the child will inherit it automatically.

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pub fn style(self, style: impl Into<Arc<Style>>) -> Self

Override the style.

Otherwise will inherit the style of the parent.

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pub fn sense(self, sense: Sense) -> Self

Set if you want sense clicks and/or drags. Default is Sense::hover. The sense will be registered below the Senses of any widgets contained in this Ui, so if the user clicks a button contained within this Ui, that button will receive the click instead.

The response can be read early with Ui::response.