Trait fltk::prelude::WidgetExt [−][src]
pub unsafe trait WidgetExt {}Show 81 methods
fn set_pos(&mut self, x: i32, y: i32); fn set_size(&mut self, width: i32, height: i32); fn set_label(&mut self, title: &str); fn redraw(&mut self); fn show(&mut self); fn hide(&mut self); fn x(&self) -> i32; fn y(&self) -> i32; fn width(&self) -> i32; fn height(&self) -> i32; fn w(&self) -> i32; fn h(&self) -> i32; fn label(&self) -> String; fn measure_label(&self) -> (i32, i32); unsafe fn as_widget_ptr(&self) -> *mut Fl_Widget; fn inside<W: WidgetExt>(&self, wid: &W) -> bool
where
Self: Sized; fn get_type<T: WidgetType>(&self) -> T
where
Self: Sized; fn set_type<T: WidgetType>(&mut self, typ: T)
where
Self: Sized; fn set_image<I: ImageExt>(&mut self, image: Option<I>)
where
Self: Sized; fn set_image_scaled<I: ImageExt>(&mut self, image: Option<I>)
where
Self: Sized; fn image(&self) -> Option<Box<dyn ImageExt>>
where
Self: Sized; fn set_deimage<I: ImageExt>(&mut self, image: Option<I>)
where
Self: Sized; fn set_deimage_scaled<I: ImageExt>(&mut self, image: Option<I>)
where
Self: Sized; fn deimage(&self) -> Option<Box<dyn ImageExt>>
where
Self: Sized; fn set_callback<F: FnMut(&mut Self) + 'static>(&mut self, cb: F)
where
Self: Sized; fn emit<T: 'static + Clone + Send + Sync>(
&mut self,
sender: Sender<T>,
msg: T
)
where
Self: Sized; fn activate(&mut self); fn deactivate(&mut self); fn redraw_label(&mut self); fn resize(&mut self, x: i32, y: i32, width: i32, height: i32); fn tooltip(&self) -> Option<String>; fn set_tooltip(&mut self, txt: &str); fn color(&self) -> Color; fn set_color(&mut self, color: Color); fn label_color(&self) -> Color; fn set_label_color(&mut self, color: Color); fn label_font(&self) -> Font; fn set_label_font(&mut self, font: Font); fn label_size(&self) -> i32; fn set_label_size(&mut self, sz: i32); fn label_type(&self) -> LabelType; fn set_label_type(&mut self, typ: LabelType); fn frame(&self) -> FrameType; fn set_frame(&mut self, typ: FrameType); fn changed(&self) -> bool; fn set_changed(&mut self); fn clear_changed(&mut self); fn align(&self) -> Align; fn set_align(&mut self, align: Align); fn parent(&self) -> Option<Group>; fn selection_color(&mut self) -> Color; fn set_selection_color(&mut self, color: Color); fn do_callback(&mut self); fn window(&self) -> Option<Box<dyn WindowExt>>; fn top_window(&self) -> Option<Box<dyn WindowExt>>; fn takes_events(&self) -> bool; fn take_focus(&mut self) -> Result<(), FltkError>; fn set_visible_focus(&mut self); fn clear_visible_focus(&mut self); fn visible_focus(&mut self, v: bool); fn has_visible_focus(&mut self) -> bool; fn has_focus(&mut self) -> bool; fn was_deleted(&self) -> bool; fn damage(&self) -> bool; fn set_damage(&mut self, flag: bool); fn damage_type(&self) -> Damage; fn set_damage_type(&mut self, mask: Damage); fn clear_damage(&mut self); fn set_trigger(&mut self, trigger: CallbackTrigger); fn trigger(&self) -> CallbackTrigger; fn as_window(&self) -> Option<Box<dyn WindowExt>>; fn as_group(&self) -> Option<Group>; unsafe fn user_data(&self) -> Option<Box<dyn FnMut()>>; unsafe fn into_widget<W: WidgetBase>(&self) -> W
where
Self: Sized; fn visible(&self) -> bool; fn visible_r(&self) -> bool; fn is_same<W: WidgetExt>(&self, other: &W) -> bool
where
Self: Sized; fn active(&self) -> bool; fn active_r(&self) -> bool; fn callback(&self) -> Option<Box<dyn FnMut()>>; fn widget_resize(&mut self, x: i32, y: i32, w: i32, h: i32);
Expand description
Defines the methods implemented by all widgets
Required methods
Sets the widget’s label.
labels support special symbols preceded by an @
sign.
and for the associated formatting.
unsafe fn as_widget_ptr(&self) -> *mut Fl_Widget
unsafe fn as_widget_ptr(&self) -> *mut Fl_Widget
transforms a widget to a base Fl_Widget
, for internal use
Safety
Can return multiple mutable pointers to the same widget
Checks whether the self widget is inside another widget
fn get_type<T: WidgetType>(&self) -> T where
Self: Sized,
fn get_type<T: WidgetType>(&self) -> T where
Self: Sized,
Returns the widget type when applicable
fn set_type<T: WidgetType>(&mut self, typ: T) where
Self: Sized,
fn set_type<T: WidgetType>(&mut self, typ: T) where
Self: Sized,
Sets the widget type
Sets the image of the widget
fn set_image_scaled<I: ImageExt>(&mut self, image: Option<I>) where
Self: Sized,
fn set_image_scaled<I: ImageExt>(&mut self, image: Option<I>) where
Self: Sized,
Sets the image of the widget scaled to the widget’s size
Gets the image associated with the widget
fn set_deimage<I: ImageExt>(&mut self, image: Option<I>) where
Self: Sized,
fn set_deimage<I: ImageExt>(&mut self, image: Option<I>) where
Self: Sized,
Sets the deactived image of the widget
fn set_deimage_scaled<I: ImageExt>(&mut self, image: Option<I>) where
Self: Sized,
fn set_deimage_scaled<I: ImageExt>(&mut self, image: Option<I>) where
Self: Sized,
Sets the deactivated image of the widget scaled to the widget’s size
Gets the deactivated image associated with the widget
fn set_callback<F: FnMut(&mut Self) + 'static>(&mut self, cb: F) where
Self: Sized,
fn set_callback<F: FnMut(&mut Self) + 'static>(&mut self, cb: F) where
Self: Sized,
Sets the callback when the widget is triggered (clicks for example) takes the widget as a closure argument
Emits a message on callback using a sender
fn deactivate(&mut self)
fn deactivate(&mut self)
Deactivates the widget
fn redraw_label(&mut self)
fn redraw_label(&mut self)
Redraws the label of the widget
Resizes and/or moves the widget, takes x, y, width and height
fn set_tooltip(&mut self, txt: &str)
fn set_tooltip(&mut self, txt: &str)
Sets the tooltip text
fn label_color(&self) -> Color
fn label_color(&self) -> Color
Returns the widget label’s color
fn set_label_color(&mut self, color: Color)
fn set_label_color(&mut self, color: Color)
Sets the widget label’s color
fn label_font(&self) -> Font
fn label_font(&self) -> Font
Returns the widget label’s font
fn set_label_font(&mut self, font: Font)
fn set_label_font(&mut self, font: Font)
Sets the widget label’s font
fn label_size(&self) -> i32
fn label_size(&self) -> i32
Returns the widget label’s size
fn set_label_size(&mut self, sz: i32)
fn set_label_size(&mut self, sz: i32)
Sets the widget label’s size
fn label_type(&self) -> LabelType
fn label_type(&self) -> LabelType
Returns the widget label’s type
fn set_label_type(&mut self, typ: LabelType)
fn set_label_type(&mut self, typ: LabelType)
Sets the widget label’s type
fn set_changed(&mut self)
fn set_changed(&mut self)
Mark the widget as changed
fn clear_changed(&mut self)
fn clear_changed(&mut self)
Clears the changed status of the widget
fn selection_color(&mut self) -> Color
fn selection_color(&mut self) -> Color
Gets the selection color of the widget
fn set_selection_color(&mut self, color: Color)
fn set_selection_color(&mut self, color: Color)
Sets the selection color of the widget
fn do_callback(&mut self)
fn do_callback(&mut self)
Runs the already registered callback
fn top_window(&self) -> Option<Box<dyn WindowExt>>
fn top_window(&self) -> Option<Box<dyn WindowExt>>
Returns the topmost window holding the widget
fn takes_events(&self) -> bool
fn takes_events(&self) -> bool
Checks whether a widget is capable of taking events
fn take_focus(&mut self) -> Result<(), FltkError>
fn take_focus(&mut self) -> Result<(), FltkError>
fn set_visible_focus(&mut self)
fn set_visible_focus(&mut self)
Set the widget to have visible focus
fn clear_visible_focus(&mut self)
fn clear_visible_focus(&mut self)
Clear visible focus
fn visible_focus(&mut self, v: bool)
fn visible_focus(&mut self, v: bool)
Set the visible focus using a flag
fn has_visible_focus(&mut self) -> bool
fn has_visible_focus(&mut self) -> bool
Return whether the widget has visible focus
fn was_deleted(&self) -> bool
fn was_deleted(&self) -> bool
Check if a widget was deleted
fn set_damage(&mut self, flag: bool)
fn set_damage(&mut self, flag: bool)
Signal the widget as damaged and it should be redrawn in the next event loop cycle
fn damage_type(&self) -> Damage
fn damage_type(&self) -> Damage
Return the damage mask
fn set_damage_type(&mut self, mask: Damage)
fn set_damage_type(&mut self, mask: Damage)
Signal the type of damage a widget received
fn clear_damage(&mut self)
fn clear_damage(&mut self)
Clear the damaged flag
fn set_trigger(&mut self, trigger: CallbackTrigger)
fn set_trigger(&mut self, trigger: CallbackTrigger)
Sets the default callback trigger for a widget
fn trigger(&self) -> CallbackTrigger
fn trigger(&self) -> CallbackTrigger
Return the callback trigger
Return the widget as a window if it’s a window
INTERNAL: Retakes ownership of the user callback data
Safety
Can return multiple mutable references to the user_data
unsafe fn into_widget<W: WidgetBase>(&self) -> W where
Self: Sized,
unsafe fn into_widget<W: WidgetBase>(&self) -> W where
Self: Sized,
Upcast a WidgetExt
to a Widget
Safety
Allows for potentially unsafe casts between incompatible widget types
Returns whether a widget or any of its parents are visible (recursively)
Return whether two widgets object point to the same widget
Returns whether a widget or any of its parents are active (recursively)
Return the default callback function, this allows storing then running within the overriden callback
use fltk::{prelude::*, *}; let scroll = group::Scroll::default(); let mut scrollbar = scroll.scrollbar(); scrollbar.set_callback({ let mut cb = scrollbar.callback(); move |_| { println!("print something, and also run the default callback"); if let Some(cb) = cb.as_mut() { (*cb)(); } } });