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#![windows_subsystem = "windows"]
use druid::widget::{Button, Flex, Label, Split, TextBox, ViewSwitcher};
use druid::{AppLauncher, Data, Env, Lens, LocalizedString, Widget, WidgetExt, WindowDesc};
#[derive(Clone, Data, Lens)]
struct AppState {
current_view: u32,
current_text: String,
}
pub fn main() {
let main_window = WindowDesc::new(make_ui()).title(LocalizedString::new("View Switcher"));
let data = AppState {
current_view: 0,
current_text: "Edit me!".to_string(),
};
AppLauncher::with_window(main_window)
.log_to_console()
.launch(data)
.expect("launch failed");
}
fn make_ui() -> impl Widget<AppState> {
let mut switcher_column = Flex::column();
switcher_column.add_child(
Label::new(|data: &u32, _env: &Env| format!("Current view: {}", data))
.lens(AppState::current_view),
);
for i in 0..6 {
switcher_column.add_spacer(80.);
switcher_column.add_child(
Button::new(format!("View {}", i))
.on_click(move |_event, data: &mut u32, _env| {
*data = i;
})
.lens(AppState::current_view),
);
}
let view_switcher = ViewSwitcher::new(
|data: &AppState, _env| data.current_view,
|selector, _data, _env| match selector {
0 => Box::new(Label::new("Simple Label").center()),
1 => Box::new(
Button::new("Simple Button").on_click(|_event, _data, _env| {
println!("Simple button clicked!");
}),
),
2 => Box::new(
Button::new("Another Simple Button").on_click(|_event, _data, _env| {
println!("Another simple button clicked!");
}),
),
3 => Box::new(
Flex::column()
.with_flex_child(Label::new("Here is a label").center(), 1.0)
.with_flex_child(
Button::new("Button").on_click(|_event, _data, _env| {
println!("Complex button clicked!");
}),
1.0,
)
.with_flex_child(TextBox::new().lens(AppState::current_text), 1.0)
.with_flex_child(
Label::new(|data: &String, _env: &Env| format!("Value entered: {}", data))
.lens(AppState::current_text),
1.0,
),
),
4 => Box::new(
Split::columns(
Label::new("Left split").center(),
Label::new("Right split").center(),
)
.draggable(true),
),
_ => Box::new(Label::new("Unknown").center()),
},
);
Flex::row()
.with_child(switcher_column)
.with_flex_child(view_switcher, 1.0)
}