Trait fltk::prelude::WidgetBase [−][src]
pub unsafe trait WidgetBase: WidgetExt { fn new<T: Into<Option<&'static str>>>(
x: i32,
y: i32,
width: i32,
height: i32,
title: T
) -> Self; fn delete(wid: Self)
where
Self: Sized; unsafe fn from_widget_ptr(ptr: *mut Fl_Widget) -> Self; unsafe fn from_widget<W: WidgetExt>(w: W) -> Self; fn handle<F: FnMut(&mut Self, Event) -> bool + 'static>(&mut self, cb: F); fn draw<F: FnMut(&mut Self) + 'static>(&mut self, cb: F); unsafe fn draw_data(&mut self) -> Option<Box<dyn FnMut()>>; unsafe fn handle_data(&mut self) -> Option<Box<dyn FnMut(Event) -> bool>>; }
Expand description
Defines the extended methods implemented by all widgets
Required methods
Creates a new widget, takes an x, y coordinates, as well as a width and height, plus a title
Arguments
x
- The x coordinate in the screeny
- The y coordinate in the screenwidth
- The width of the widgetheigth
- The height of the widgettitle
- The title or label of the widget The title is expected to be a static str or None. To use dynamic strings usewith_label(self, &str)
orset_label(&mut self, &str)
labels support special symbols preceded by an@
sign. and for the associated formatting.
unsafe fn from_widget_ptr(ptr: *mut Fl_Widget) -> Self
unsafe fn from_widget_ptr(ptr: *mut Fl_Widget) -> Self
unsafe fn from_widget<W: WidgetExt>(w: W) -> Self
unsafe fn from_widget<W: WidgetExt>(w: W) -> Self
Set a custom handler, where events are managed manually, akin to Fl_Widget::handle(int)
.
Handled or ignored events should return true, unhandled events should return false.
takes the widget as a closure argument
Set a custom draw method.
takes the widget as a closure argument.
macOS requires that WidgetBase::draw
actually calls drawing functions