Struct widgetry::event_ctx::EventCtx[][src]

pub struct EventCtx<'a> {
    pub(crate) fake_mouseover: bool,
    pub input: UserInput,
    pub canvas: &'a mut Canvas,
    pub prerender: &'a Prerender,
    pub(crate) style: &'a mut Style,
    pub(crate) updates_requested: Vec<UpdateType>,
    pub(crate) canvas_movement_called: bool,
    pub(crate) focus_owned_by: Option<String>,
    pub(crate) next_focus_owned_by: Option<String>,
}

Fields

fake_mouseover: boolinput: UserInputcanvas: &'a mut Canvasprerender: &'a Prerenderstyle: &'a mut Styleupdates_requested: Vec<UpdateType>canvas_movement_called: boolfocus_owned_by: Option<String>

This widget (in some panel) exclusively owns focus. Don’t modify.

next_focus_owned_by: Option<String>

While handling an event, this widget (in some panel) this widget declared that it owns focus. This will become focus_owned_by during the next event.

Implementations

Allow panning and zooming on the canvas. Exactly which controls are active (click-and-drag, auto-pan at the edge of the screen, using arrow keys, etc) depend on options set. Returns true if the canvas moved at all.

Checks if an extra font has previously been loaded with load_font. Returns false for built-in system fonts.

Loads an extra font, used only for automatic fallback of missing glyphs.

Trait Implementations

Performs the conversion.

Performs the conversion.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait. Read more

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait. Read more

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s. Read more

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s. Read more

Performs the conversion.

Performs the conversion.

Should always be Self

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.