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: bool
input: UserInput
canvas: &'a mut Canvas
prerender: &'a Prerender
style: &'a mut Style
updates_requested: Vec<UpdateType>
canvas_movement_called: bool
focus_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
sourceimpl<'a> EventCtx<'a>
impl<'a> EventCtx<'a>
pub fn loading_screen<O, S: Into<String>, F: FnOnce(&mut EventCtx<'_>, &mut Timer<'_>) -> O>(
&mut self,
raw_timer_name: S,
f: F
) -> O
pub fn request_update(&mut self, update_type: UpdateType)
sourcepub fn canvas_movement(&mut self) -> bool
pub fn canvas_movement(&mut self) -> bool
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.
pub fn no_op_event<O, F: FnMut(&mut EventCtx<'_>) -> O>(
&mut self,
fake_mouseover: bool,
cb: F
) -> O
pub fn redo_mouseover(&self) -> bool
pub fn normal_left_click(&mut self) -> bool
pub fn is_key_down(&self, key: Key) -> bool
pub fn default_line_height(&self) -> f64
pub fn upload(&self, batch: GeomBatch) -> Drawable
pub(crate) fn cursor_clickable(&mut self)
pub(crate) fn cursor_grabbable(&mut self)
pub(crate) fn cursor_grabbing(&mut self)
pub fn style(&self) -> &Style
pub fn set_style(&mut self, style: Style)
pub fn make_loading_screen(&mut self, txt: Text) -> Panel
sourcepub fn is_font_loaded(&self, filename: &str) -> bool
pub fn is_font_loaded(&self, filename: &str) -> bool
Checks if an extra font has previously been loaded with load_font
. Returns false for
built-in system fonts.
sourcepub fn load_font(&mut self, filename: &str, bytes: Vec<u8>)
pub fn load_font(&mut self, filename: &str, bytes: Vec<u8>)
Loads an extra font, used only for automatic fallback of missing glyphs.
pub fn hide_cursor(&self)
pub fn show_cursor(&self)
Trait Implementations
Auto Trait Implementations
impl<'a> !RefUnwindSafe for EventCtx<'a>
impl<'a> !Send for EventCtx<'a>
impl<'a> !Sync for EventCtx<'a>
impl<'a> Unpin for EventCtx<'a>
impl<'a> !UnwindSafe for EventCtx<'a>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T> Downcast for T where
T: Any,
impl<T> Downcast for T where
T: Any,
pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
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
pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
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
pub fn as_any(&self) -> &(dyn Any + 'static)
pub fn as_any(&self) -> &(dyn Any + 'static)
Convert &Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read more
pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
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
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Instruments this type with the provided Span
, returning an
Instrumented
wrapper. Read more
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
impl<T> Same<T> for T
impl<T> Same<T> for T
type Output = T
type Output = T
Should always be Self