Struct fltk::group::Flex

pub struct Flex { /* private fields */ }

a Flexbox widget

Example

use fltk::{prelude::*, *};
fn main() {
    let a = app::App::default();
    let mut win = window::Window::default().with_size(400, 300);
    let mut col = group::Flex::default().size_of_parent();
    col.set_type(group::FlexType::Column);
    let expanding = button::Button::default().with_label("Expanding");
    let mut normal = button::Button::default().with_label("Normal");
    col.set_size(&mut normal, 30);
    col.end();
    win.end();
    win.show();
    a.run().unwrap();
}

Implementations

impl Flex

pub fn add<W: WidgetExt>(&mut self, widget: &W)

Add a widget to the Flex box

pub fn insert<W: WidgetExt>(&mut self, widget: &W, idx: i32)

Add a widget to the Flex box

pub fn set_size<W: WidgetExt>(&mut self, w: &W, size: i32)

👎Deprecated since 1.4.8: please use fixed instead

Set the size of the widget, same as fixed (before it was changed in FLTK 1.4)

pub fn fixed<W: WidgetExt>(&mut self, w: &W, size: i32)

Set the size of the widget, same as set_size, but more inline with the new FLTK Fl_Flex api

Examples found in repository

examples/editor2.rs (line 250)

fn main() {
    let a = app::App::default().with_scheme(app::Scheme::Oxy);
    app::get_system_colors();

    let mut buf = text::TextBuffer::default();
    buf.set_tab_distance(4);

    let state = State::new(buf.clone());
    app::GlobalState::new(state);

    let mut w = window::Window::default()
        .with_size(WIDTH, HEIGHT)
        .with_label("Ted");
    w.set_xclass("ted");
    {
        let mut col = group::Flex::default_fill().column();
        col.set_pad(0);
        let mut m = menu::SysMenuBar::default();
        init_menu(&mut m);
        let mut ed = text::TextEditor::default().with_id("ed");
        ed.set_buffer(buf);
        ed.set_linenumber_width(40);
        ed.set_text_font(Font::Courier);
        ed.set_trigger(CallbackTrigger::Changed);
        ed.set_callback(editor_cb);
        handle_drag_drop(&mut ed);
        w.resizable(&col);
        col.fixed(&m, 30);
        col.end();
    }
    w.end();
    w.show();
    w.set_callback(win_cb);
    a.run().unwrap();
}

examples/temp_converter2.rs (line 52)

    pub fn new() -> Self {
        let a = app::App::default();
        MyApp::init_styles();
        let (s, r) = app::channel();

        let (inp1, inp2) = {
            let mut win = window::Window::default().with_size(150, 200);
            let mut flex = group::Flex::default()
                .with_size(130, 180)
                .center_of(&win)
                .column();
            make_label("Celcius");
            let mut inp1 = input::FloatInput::default().with_size(0, 40);
            make_label("Fahrenheit");
            let mut inp2 = input::FloatInput::default().with_size(0, 40);
            flex.fixed(&inp1, 30);
            flex.fixed(&inp2, 30);
            flex.end();
            win.end();
            win.make_resizable(true);
            win.show();

            inp1.set_value(&format!("{}", 0.0));
            inp2.set_value(&format!("{}", 32.0));

            inp1.set_trigger(CallbackTrigger::Changed);
            inp2.set_trigger(CallbackTrigger::Changed);

            inp1.emit(s, Message::CelciusChanged);
            inp2.emit(s, Message::FahrenheitChanged);

            (inp1, inp2)
        };
        Self { a, inp1, inp2, r }
    }

examples/flex.rs (line 28)

fn buttons_panel(parent: &mut group::Flex) {
    frame::Frame::default();
    let w = frame::Frame::default().with_label("Welcome to Flex Login");

    let mut urow = group::Flex::default().row();
    {
        frame::Frame::default()
            .with_label("Username:")
            .with_align(enums::Align::Inside | enums::Align::Right);
        let username = input::Input::default();

        urow.fixed(&username, 180);
        urow.end();
    }

    let mut prow = group::Flex::default().row();
    {
        frame::Frame::default()
            .with_label("Password:")
            .with_align(enums::Align::Inside | enums::Align::Right);
        let password = input::Input::default();

        prow.fixed(&password, 180);
        prow.end();
    }

    let pad = frame::Frame::default();

    let mut brow = group::Flex::default().row();
    {
        frame::Frame::default();
        let reg = create_button("Register");
        let login = create_button("Login");

        brow.fixed(&reg, 80);
        brow.fixed(&login, 80);
        brow.end();
    }

    let b = frame::Frame::default();

    frame::Frame::default();

    parent.fixed(&w, 60);
    parent.fixed(&urow, 30);
    parent.fixed(&prow, 30);
    parent.fixed(&pad, 1);
    parent.fixed(&brow, 30);
    parent.fixed(&b, 30);
}

fn middle_panel(parent: &mut group::Flex) {
    frame::Frame::default();

    let mut frame = frame::Frame::default().with_label("Image");
    frame.set_frame(enums::FrameType::BorderBox);
    frame.set_color(enums::Color::from_rgb(0, 200, 0));
    let spacer = frame::Frame::default();

    let mut bp = group::Flex::default().column();
    buttons_panel(&mut bp);
    bp.end();

    frame::Frame::default();

    parent.fixed(&frame, 200);
    parent.fixed(&spacer, 10);
    parent.fixed(&bp, 300);
}

fn main_panel(parent: &mut group::Flex) {
    frame::Frame::default();

    let mut mp = group::Flex::default().row();
    middle_panel(&mut mp);
    mp.end();

    frame::Frame::default();

    parent.fixed(&mp, 200);
}

pub fn debug(flag: bool)

Debug the flex layout

pub fn column(self) -> Self

Set the type to be a column

Examples found in repository

examples/flex.rs (line 6)

fn main() {
    let a = app::App::default().with_scheme(app::Scheme::Gtk);
    let mut win = window::Window::default().with_size(640, 480);
    let mut col = group::Flex::default_fill().column();
    main_panel(&mut col);
    col.end();
    win.resizable(&col);
    win.set_color(enums::Color::from_rgb(250, 250, 250));
    win.end();
    win.show();
    win.size_range(600, 400, 0, 0);
    a.run().unwrap();
}

fn buttons_panel(parent: &mut group::Flex) {
    frame::Frame::default();
    let w = frame::Frame::default().with_label("Welcome to Flex Login");

    let mut urow = group::Flex::default().row();
    {
        frame::Frame::default()
            .with_label("Username:")
            .with_align(enums::Align::Inside | enums::Align::Right);
        let username = input::Input::default();

        urow.fixed(&username, 180);
        urow.end();
    }

    let mut prow = group::Flex::default().row();
    {
        frame::Frame::default()
            .with_label("Password:")
            .with_align(enums::Align::Inside | enums::Align::Right);
        let password = input::Input::default();

        prow.fixed(&password, 180);
        prow.end();
    }

    let pad = frame::Frame::default();

    let mut brow = group::Flex::default().row();
    {
        frame::Frame::default();
        let reg = create_button("Register");
        let login = create_button("Login");

        brow.fixed(&reg, 80);
        brow.fixed(&login, 80);
        brow.end();
    }

    let b = frame::Frame::default();

    frame::Frame::default();

    parent.fixed(&w, 60);
    parent.fixed(&urow, 30);
    parent.fixed(&prow, 30);
    parent.fixed(&pad, 1);
    parent.fixed(&brow, 30);
    parent.fixed(&b, 30);
}

fn middle_panel(parent: &mut group::Flex) {
    frame::Frame::default();

    let mut frame = frame::Frame::default().with_label("Image");
    frame.set_frame(enums::FrameType::BorderBox);
    frame.set_color(enums::Color::from_rgb(0, 200, 0));
    let spacer = frame::Frame::default();

    let mut bp = group::Flex::default().column();
    buttons_panel(&mut bp);
    bp.end();

    frame::Frame::default();

    parent.fixed(&frame, 200);
    parent.fixed(&spacer, 10);
    parent.fixed(&bp, 300);
}

examples/widget_id.rs (line 56)

fn main() {
    let counter = Counter { count: 0 };
    let _state = app::GlobalState::new(counter);
    let app = app::App::default().with_scheme(app::Scheme::Gtk);
    let mut wind = window::Window::default()
        .with_size(160, 200)
        .with_label("Counter");
    let col = group::Flex::default_fill().column();
    button::Button::default()
        .with_label("+")
        .on_trigger(increment); // passed by function object
    frame::Frame::default().with_label("0").with_id("my_frame"); // pass id here
    button::Button::default()
        .with_label("-")
        .on_trigger(|_| increment_by(-1)); // called in closure
    col.end();
    wind.make_resizable(true);
    wind.end();
    wind.show();

    app.run().unwrap();
}

examples/closable_tab.rs (line 20)

fn main() {
    let app = app::App::default();
    let mut win = window::Window::default().with_size(800, 600);
    let row = group::Flex::default_fill().row();
    let mut tabs = group::Tabs::default();
    tabs.set_tab_align(enums::Align::Right);
    tabs.handle_overflow(group::TabsOverflow::Compress);
    // first tab
    {
        let mut col1 = group::Flex::default().with_label("\t\ttab1").column();
        col1.set_trigger(CallbackTrigger::Closed);
        col1.set_callback(tab_close_cb);
        // widgets
        col1.end();
    }
    // end first tab

    // second tab
    {
        let mut col2 = group::Flex::default().with_label("\t\ttab2").column();
        col2.set_trigger(CallbackTrigger::Closed);
        col2.set_callback(tab_close_cb);
        // widgets
        col2.end();
    }
    // end second tab
    tabs.end();
    tabs.auto_layout();
    row.end();
    win.end();
    win.show();
    app.run().unwrap();
}

examples/editor2.rs (line 238)

fn main() {
    let a = app::App::default().with_scheme(app::Scheme::Oxy);
    app::get_system_colors();

    let mut buf = text::TextBuffer::default();
    buf.set_tab_distance(4);

    let state = State::new(buf.clone());
    app::GlobalState::new(state);

    let mut w = window::Window::default()
        .with_size(WIDTH, HEIGHT)
        .with_label("Ted");
    w.set_xclass("ted");
    {
        let mut col = group::Flex::default_fill().column();
        col.set_pad(0);
        let mut m = menu::SysMenuBar::default();
        init_menu(&mut m);
        let mut ed = text::TextEditor::default().with_id("ed");
        ed.set_buffer(buf);
        ed.set_linenumber_width(40);
        ed.set_text_font(Font::Courier);
        ed.set_trigger(CallbackTrigger::Changed);
        ed.set_callback(editor_cb);
        handle_drag_drop(&mut ed);
        w.resizable(&col);
        col.fixed(&m, 30);
        col.end();
    }
    w.end();
    w.show();
    w.set_callback(win_cb);
    a.run().unwrap();
}

examples/temp_converter2.rs (line 47)

    pub fn new() -> Self {
        let a = app::App::default();
        MyApp::init_styles();
        let (s, r) = app::channel();

        let (inp1, inp2) = {
            let mut win = window::Window::default().with_size(150, 200);
            let mut flex = group::Flex::default()
                .with_size(130, 180)
                .center_of(&win)
                .column();
            make_label("Celcius");
            let mut inp1 = input::FloatInput::default().with_size(0, 40);
            make_label("Fahrenheit");
            let mut inp2 = input::FloatInput::default().with_size(0, 40);
            flex.fixed(&inp1, 30);
            flex.fixed(&inp2, 30);
            flex.end();
            win.end();
            win.make_resizable(true);
            win.show();

            inp1.set_value(&format!("{}", 0.0));
            inp2.set_value(&format!("{}", 32.0));

            inp1.set_trigger(CallbackTrigger::Changed);
            inp2.set_trigger(CallbackTrigger::Changed);

            inp1.emit(s, Message::CelciusChanged);
            inp2.emit(s, Message::FahrenheitChanged);

            (inp1, inp2)
        };
        Self { a, inp1, inp2, r }
    }

pub fn row(self) -> Self

Set the type to a row

Examples found in repository

examples/closable_tab.rs (line 14)

fn main() {
    let app = app::App::default();
    let mut win = window::Window::default().with_size(800, 600);
    let row = group::Flex::default_fill().row();
    let mut tabs = group::Tabs::default();
    tabs.set_tab_align(enums::Align::Right);
    tabs.handle_overflow(group::TabsOverflow::Compress);
    // first tab
    {
        let mut col1 = group::Flex::default().with_label("\t\ttab1").column();
        col1.set_trigger(CallbackTrigger::Closed);
        col1.set_callback(tab_close_cb);
        // widgets
        col1.end();
    }
    // end first tab

    // second tab
    {
        let mut col2 = group::Flex::default().with_label("\t\ttab2").column();
        col2.set_trigger(CallbackTrigger::Closed);
        col2.set_callback(tab_close_cb);
        // widgets
        col2.end();
    }
    // end second tab
    tabs.end();
    tabs.auto_layout();
    row.end();
    win.end();
    win.show();
    app.run().unwrap();
}

examples/flex.rs (line 21)

fn buttons_panel(parent: &mut group::Flex) {
    frame::Frame::default();
    let w = frame::Frame::default().with_label("Welcome to Flex Login");

    let mut urow = group::Flex::default().row();
    {
        frame::Frame::default()
            .with_label("Username:")
            .with_align(enums::Align::Inside | enums::Align::Right);
        let username = input::Input::default();

        urow.fixed(&username, 180);
        urow.end();
    }

    let mut prow = group::Flex::default().row();
    {
        frame::Frame::default()
            .with_label("Password:")
            .with_align(enums::Align::Inside | enums::Align::Right);
        let password = input::Input::default();

        prow.fixed(&password, 180);
        prow.end();
    }

    let pad = frame::Frame::default();

    let mut brow = group::Flex::default().row();
    {
        frame::Frame::default();
        let reg = create_button("Register");
        let login = create_button("Login");

        brow.fixed(&reg, 80);
        brow.fixed(&login, 80);
        brow.end();
    }

    let b = frame::Frame::default();

    frame::Frame::default();

    parent.fixed(&w, 60);
    parent.fixed(&urow, 30);
    parent.fixed(&prow, 30);
    parent.fixed(&pad, 1);
    parent.fixed(&brow, 30);
    parent.fixed(&b, 30);
}

fn middle_panel(parent: &mut group::Flex) {
    frame::Frame::default();

    let mut frame = frame::Frame::default().with_label("Image");
    frame.set_frame(enums::FrameType::BorderBox);
    frame.set_color(enums::Color::from_rgb(0, 200, 0));
    let spacer = frame::Frame::default();

    let mut bp = group::Flex::default().column();
    buttons_panel(&mut bp);
    bp.end();

    frame::Frame::default();

    parent.fixed(&frame, 200);
    parent.fixed(&spacer, 10);
    parent.fixed(&bp, 300);
}

fn main_panel(parent: &mut group::Flex) {
    frame::Frame::default();

    let mut mp = group::Flex::default().row();
    middle_panel(&mut mp);
    mp.end();

    frame::Frame::default();

    parent.fixed(&mp, 200);
}

pub fn recalc(&self)

Recalculate children’s coords and sizes

pub fn layout(&self)

Recalculate children’s coords and sizes

pub fn set_margin(&mut self, m: i32)

Set the margin

pub fn margin(&self) -> i32

Get the margin

pub fn set_pad(&mut self, p: i32)

Set the padding

Examples found in repository

examples/editor2.rs (line 239)

fn main() {
    let a = app::App::default().with_scheme(app::Scheme::Oxy);
    app::get_system_colors();

    let mut buf = text::TextBuffer::default();
    buf.set_tab_distance(4);

    let state = State::new(buf.clone());
    app::GlobalState::new(state);

    let mut w = window::Window::default()
        .with_size(WIDTH, HEIGHT)
        .with_label("Ted");
    w.set_xclass("ted");
    {
        let mut col = group::Flex::default_fill().column();
        col.set_pad(0);
        let mut m = menu::SysMenuBar::default();
        init_menu(&mut m);
        let mut ed = text::TextEditor::default().with_id("ed");
        ed.set_buffer(buf);
        ed.set_linenumber_width(40);
        ed.set_text_font(Font::Courier);
        ed.set_trigger(CallbackTrigger::Changed);
        ed.set_callback(editor_cb);
        handle_drag_drop(&mut ed);
        w.resizable(&col);
        col.fixed(&m, 30);
        col.end();
    }
    w.end();
    w.show();
    w.set_callback(win_cb);
    a.run().unwrap();
}

pub fn pad(&self) -> i32

Get the padding

pub fn set_margins(&mut self, left: i32, top: i32, right: i32, bottom: i32)

Set the margins

pub fn margins(&self) -> (i32, i32, i32, i32)

Get the margins -> returns (left, top, right, bottom)

Trait Implementations

impl Clone for Flex

fn clone(&self) -> Flex

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Flex

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Flex

fn default() -> Self

Returns the “default value” for a type.

impl GroupExt for Flex

fn begin(&self)

Begins a group, used for widgets implementing the group trait

fn end(&self)

Ends a group, used for widgets implementing the group trait

fn clear(&mut self)

Clear a group from all widgets

fn children(&self) -> i32

Return the number of children in a group

fn child(&self, idx: i32) -> Option<Widget>

Return child widget by index

fn find<W: WidgetExt>(&self, widget: &W) -> i32

Find a widget within a group and return its index

fn add<W: WidgetExt>(&mut self, widget: &W)

Add a widget to a group

fn insert<W: WidgetExt>(&mut self, widget: &W, index: i32)

Insert a widget to a group at a certain index

fn remove<W: WidgetExt>(&mut self, widget: &W)

Remove a widget from a group, but does not delete it

fn remove_by_index(&mut self, idx: i32)

Remove a child widget by its index

fn resizable<W: WidgetExt>(&self, widget: &W)

The resizable widget defines both the resizing frame and the resizing behavior of the group and its children.

fn make_resizable(&mut self, val: bool)

Make the group itself resizable, should be called before the widget is shown

fn add_resizable<W: WidgetExt>(&mut self, widget: &W)

Adds a widget to the group and makes it the resizable widget

fn set_clip_children(&mut self, flag: bool)

Clips children outside the group boundaries

fn clip_children(&self) -> bool

Get whether clip_children is set

fn draw_child<W: WidgetExt>(&self, w: &mut W)

Draw a child widget, the call should be in a WidgetBase::draw method

fn update_child<W: WidgetExt>(&self, w: &mut W)

Update a child widget, the call should be in a WidgetBase::draw method

fn draw_outside_label<W: WidgetExt>(&self, w: &mut W)

Draw the outside label, the call should be in a WidgetBase::draw method

fn draw_children(&mut self)

Draw children, the call should be in a WidgetBase::draw method

fn init_sizes(&mut self)

Resets the internal array of widget sizes and positions

fn bounds(&self) -> Vec<(i32, i32, i32, i32)>

Get the bounds of all children widgets (left, upper, right, bottom)

unsafe fn into_group(&self) -> Group

Converts a widget implementing GroupExt into a Group widget

impl IntoIterator for Flex

type Item = Widget

The type of the elements being iterated over.

type IntoIter = IntoIter<<Flex as IntoIterator>::Item, Global>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl PartialEq<Flex> for Flex

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl WidgetBase for Flex

fn new<T: Into<Option<&'static str>>>( x: i32, y: i32, width: i32, height: i32, title: T ) -> Flex

Creates a new widget, takes an x, y coordinates, as well as a width and height, plus a title

fn default_fill() -> Self

Constructs a widget with the size of its parent

fn delete(wid: Self)

Deletes widgets and their children.

unsafe fn from_widget_ptr(ptr: *mut Fl_Widget) -> Self

transforms a widget pointer to a Widget, for internal use

unsafe fn from_widget<W: WidgetExt>(w: W) -> Self

Get a widget from base widget

fn handle<F: FnMut(&mut Self, Event) -> bool + 'static>(&mut self, cb: F)

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

fn draw<F: FnMut(&mut Self) + 'static>(&mut self, cb: F)

Set a custom draw method. takes the widget as a closure argument. macOS requires that WidgetBase::draw actually calls drawing functions

fn resize_callback<F: FnMut(&mut Self, i32, i32, i32, i32) + 'static>( &mut self, cb: F )

Perform a callback on resize. Avoid resizing the parent or the same widget to avoid infinite recursion

unsafe fn assume_derived(&mut self)

Makes the widget derived

fn from_dyn_widget<W: WidgetExt>(w: &W) -> Option<Self>

Cast a type-erased widget back to its original widget

fn from_dyn_widget_ptr(w: *mut Fl_Widget) -> Option<Self>

Cast a type-erased widget pointer back to its original widget

impl WidgetExt for Flex

fn center_x<W: WidgetExt>(self, w: &W) -> Self

Initialize center of another widget

fn center_y<W: WidgetExt>(self, w: &W) -> Self

Initialize center of another widget

fn with_pos(self, x: i32, y: i32) -> Self

Initialize to a position x, y

fn with_size(self, width: i32, height: i32) -> Self

Initialize to size width, height

fn with_label(self, title: &str) -> Self

Initialize with a label

fn with_align(self, align: Align) -> Self

Initialize with alignment

fn with_type<T: WidgetType>(self, typ: T) -> Self

Initialize with type

fn below_of<W: WidgetExt>(self, wid: &W, padding: i32) -> Self

Initialize at bottom of another widget

fn above_of<W: WidgetExt>(self, wid: &W, padding: i32) -> Self

Initialize above of another widget

fn right_of<W: WidgetExt>(self, wid: &W, padding: i32) -> Self

Initialize right of another widget

fn left_of<W: WidgetExt>(self, wid: &W, padding: i32) -> Self

Initialize left of another widget

fn center_of<W: WidgetExt>(self, w: &W) -> Self

Initialize center of another widget

fn center_of_parent(self) -> Self

Initialize center of parent

fn size_of<W: WidgetExt>(self, w: &W) -> Self

Initialize to the size of another widget

fn size_of_parent(self) -> Self

Initialize to the size of the parent

fn set_pos(&mut self, x: i32, y: i32)

Set to position x, y

fn set_size(&mut self, width: i32, height: i32)

Set to dimensions width and height

fn set_label(&mut self, title: &str)

Sets the widget’s label. labels support special symbols preceded by an @ sign. and for the associated formatting.

fn redraw(&mut self)

Redraws a widget, necessary for resizing and changing positions

fn show(&mut self)

Shows the widget

fn hide(&mut self)

Hides the widget

fn x(&self) -> i32

Returns the x coordinate of the widget

fn y(&self) -> i32

Returns the y coordinate of the widget

fn width(&self) -> i32

Returns the width of the widget

fn height(&self) -> i32

Returns the height of the widget

fn w(&self) -> i32

Returns the width of the widget

fn h(&self) -> i32

Returns the height of the widget

fn label(&self) -> String

Returns the label of the widget

fn measure_label(&self) -> (i32, i32)

Measures the label’s width and height

fn as_widget_ptr(&self) -> *mut Fl_Widget

transforms a widget to a base Fl_Widget, for internal use

fn activate(&mut self)

Activates the widget

fn deactivate(&mut self)

Deactivates the widget

fn redraw_label(&mut self)

Redraws the label of the widget

fn resize(&mut self, x: i32, y: i32, width: i32, height: i32)

Resizes and/or moves the widget, takes x, y, width and height

fn widget_resize(&mut self, x: i32, y: i32, width: i32, height: i32)

Does a simple resize ignoring class-specific resize functionality

fn tooltip(&self) -> Option<String>

Returns the tooltip text

fn set_tooltip(&mut self, txt: &str)

Sets the tooltip text

fn color(&self) -> Color

Returns the widget color

fn set_color(&mut self, color: Color)

Sets the widget’s color

fn label_color(&self) -> Color

Returns the widget label’s color

fn set_label_color(&mut self, color: Color)

Sets the widget label’s color

fn label_font(&self) -> Font

Returns the widget label’s font

fn set_label_font(&mut self, font: Font)

Sets the widget label’s font

fn label_size(&self) -> i32

Returns the widget label’s size

fn set_label_size(&mut self, sz: i32)

Sets the widget label’s size

fn label_type(&self) -> LabelType

Returns the widget label’s type

fn set_label_type(&mut self, typ: LabelType)

Sets the widget label’s type

fn frame(&self) -> FrameType

Returns the widget’s frame type

fn set_frame(&mut self, typ: FrameType)

Sets the widget’s frame type

fn changed(&self) -> bool

Returns whether the widget was changed

fn set_changed(&mut self)

Mark the widget as changed

fn clear_changed(&mut self)

Clears the changed status of the widget

fn align(&self) -> Align

Returns the alignment of the widget

fn set_align(&mut self, align: Align)

Sets the alignment of the widget

fn set_trigger(&mut self, trigger: CallbackTrigger)

Sets the default callback trigger for a widget, equivalent to when()

fn trigger(&self) -> CallbackTrigger

Return the callback trigger, equivalent to when()

fn parent(&self) -> Option<Group>

Returns the parent of the widget

fn selection_color(&self) -> Color

Gets the selection color of the widget

fn set_selection_color(&mut self, color: Color)

Sets the selection color of the widget

fn do_callback(&mut self)

Runs the already registered callback

fn window(&self) -> Option<Box<dyn WindowExt>>

Returns the direct window holding the widget

fn top_window(&self) -> Option<Box<dyn WindowExt>>

Returns the topmost window holding the widget

fn takes_events(&self) -> bool

Checks whether a widget is capable of taking events

fn take_focus(&mut self) -> Result<(), FltkError>

Make the widget take focus

fn set_visible_focus(&mut self)

Set the widget to have visible focus

fn clear_visible_focus(&mut self)

Clear visible focus

fn visible_focus(&mut self, v: bool)

Set the visible focus using a flag

fn has_visible_focus(&self) -> bool

Return whether the widget has visible focus

fn has_focus(&self) -> bool

Return whether the widget has focus

fn was_deleted(&self) -> bool

Check if a widget was deleted

fn damage(&self) -> bool

Return whether the widget was damaged

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

Return the damage mask

fn set_damage_type(&mut self, mask: Damage)

Signal the type of damage a widget received

fn set_damage_area(&mut self, mask: Damage, x: i32, y: i32, w: i32, h: i32)

Signal damage for an area inside the widget

fn clear_damage(&mut self)

Clear the damaged flag

fn as_window(&self) -> Option<Box<dyn WindowExt>>

Return the widget as a window if it’s a window

fn as_group(&self) -> Option<Group>

Return the widget as a group widget if it’s a group widget

fn inside<W: WidgetExt>(&self, wid: &W) -> bool

Checks whether the self widget is inside another widget

fn get_type<T: WidgetType>(&self) -> T

Returns the widget type when applicable

fn set_type<T: WidgetType>(&mut self, typ: T)

Sets the widget type

fn set_image<I: ImageExt>(&mut self, image: Option<I>)

Sets the image of the widget

fn set_image_scaled<I: ImageExt>(&mut self, image: Option<I>)

Sets the image of the widget scaled to the widget’s size

fn image(&self) -> Option<Box<dyn ImageExt>>

Gets the image associated with the widget

unsafe fn image_mut(&self) -> Option<&mut Image>

Get a reference type of the widget’s image

fn set_deimage<I: ImageExt>(&mut self, image: Option<I>)

Sets the deactivated image of the widget

fn set_deimage_scaled<I: ImageExt>(&mut self, image: Option<I>)

Sets the deactivated image of the widget scaled to the widget’s size

fn deimage(&self) -> Option<Box<dyn ImageExt>>

Gets the deactivated image associated with the widget

unsafe fn deimage_mut(&self) -> Option<&mut Image>

Get a reference type of the widget’s deactivated image

fn set_callback<F: FnMut(&mut Self) + 'static>(&mut self, cb: F)

Sets the callback when the widget is triggered (clicks for example) takes the widget as a closure argument

fn emit<T: 'static + Clone + Send + Sync>(&mut self, sender: Sender<T>, msg: T)

Emits a message on callback using a sender

unsafe fn into_widget<W: WidgetBase>(&self) -> W

Upcast a WidgetExt to some widget type

fn visible(&self) -> bool

Returns whether a widget is visible

fn visible_r(&self) -> bool

Returns whether a widget or any of its parents are visible (recursively)

fn is_same<W: WidgetExt>(&self, other: &W) -> bool

Return whether two widgets object point to the same widget

fn active(&self) -> bool

Returns whether a widget is active

fn active_r(&self) -> bool

Returns whether a widget or any of its parents are active (recursively)

fn handle_event(&mut self, event: Event) -> bool

Handle a specific event

fn is_derived(&self) -> bool

Check whether a widget is derived

fn as_base_widget(&self) -> Widgetwhere Self: Sized,

Upcast a WidgetExt to a Widget

impl Eq for Flex

impl Send for Flex

impl Sync for Flex