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#![windows_subsystem = "windows"]
use druid::widget::{
Checkbox, Flex, Label, LensWrap, MainAxisAlignment, Padding, Parse, Stepper, Switch, TextBox,
WidgetExt,
};
use druid::{AppLauncher, Data, Lens, LensExt, LocalizedString, Widget, WindowDesc};
#[derive(Clone, Data, Lens)]
struct DemoState {
value: bool,
stepper_value: f64,
}
fn build_widget() -> impl Widget<DemoState> {
let mut col = Flex::column();
let mut row = Flex::row();
let switch = LensWrap::new(Switch::new(), DemoState::value);
let check_box = LensWrap::new(Checkbox::new(""), DemoState::value);
let switch_label = Label::new("Setting label");
row.add_child(Padding::new(5.0, switch_label));
row.add_child(Padding::new(5.0, switch));
row.add_child(Padding::new(5.0, check_box));
let stepper = LensWrap::new(
Stepper::new()
.with_range(0.0, 10.0)
.with_step(0.5)
.with_wraparound(false),
DemoState::stepper_value,
);
let mut textbox_row = Flex::row();
let textbox = LensWrap::new(
Parse::new(TextBox::new()),
DemoState::stepper_value.map(|x| Some(*x), |x, y| *x = y.unwrap_or(0.0)),
);
textbox_row.add_child(Padding::new(5.0, textbox));
textbox_row.add_child(Padding::new(5.0, stepper.center()));
let mut label_row = Flex::row();
let label = Label::new(|data: &DemoState, _env: &_| {
format!("Stepper value: {0:.2}", data.stepper_value)
});
label_row.add_child(Padding::new(5.0, label));
col.set_main_axis_alignment(MainAxisAlignment::Center);
col.add_child(Padding::new(5.0, row));
col.add_child(Padding::new(5.0, textbox_row));
col.add_child(Padding::new(5.0, label_row));
col.center()
}
pub fn main() {
let window = WindowDesc::new(build_widget())
.title(LocalizedString::new("switch-demo-window-title").with_placeholder("Switch Demo"));
AppLauncher::with_window(window)
.log_to_console()
.launch(DemoState {
value: true,
stepper_value: 1.0,
})
.expect("launch failed");
}