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Improve the UI for changing the egui theme (#4257)

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I added a new demo - a `Frame` editor:

![frame-editor](https://github.com/emilk/egui/assets/1148717/d0bec169-c211-45a3-9f53-5059fb8fc224)

This whole menu is now just a a bit nicer to use:
<img width="406" alt="Screenshot 2024-03-28 at 09 49 16"
src="https://github.com/emilk/egui/assets/1148717/32d12067-7cf0-4312-aa12-42909a5ed5ac">
This commit is contained in:
Emil Ernerfeldt
2024-03-28 10:09:28 +01:00
committed by GitHub
parent e183655aac
commit 3dba73e63e
23 changed files with 635 additions and 334 deletions
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67
crates/egui/src/widgets/mod.rs
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@@ -92,15 +92,19 @@ pub trait WidgetWithState {
/// Show a button to reset a value to its default.
/// The button is only enabled if the value does not already have its original value.
pub fn reset_button<T: Default + PartialEq>(ui: &mut Ui, value: &mut T) {
reset_button_with(ui, value, T::default());
///
/// The `text` could be something like "Reset foo".
pub fn reset_button<T: Default + PartialEq>(ui: &mut Ui, value: &mut T, text: &str) {
reset_button_with(ui, value, text, T::default());
}
/// Show a button to reset a value to its default.
/// The button is only enabled if the value does not already have its original value.
pub fn reset_button_with<T: PartialEq>(ui: &mut Ui, value: &mut T, reset_value: T) {
///
/// The `text` could be something like "Reset foo".
pub fn reset_button_with<T: PartialEq>(ui: &mut Ui, value: &mut T, text: &str, reset_value: T) {
if ui
.add_enabled(*value != reset_value, Button::new("Reset"))
.add_enabled(*value != reset_value, Button::new(text))
.clicked()
{
*value = reset_value;
@@ -109,62 +113,11 @@ pub fn reset_button_with<T: PartialEq>(ui: &mut Ui, value: &mut T, reset_value:
// ----------------------------------------------------------------------------
#[deprecated = "Use `ui.add(&mut stroke)` instead"]
pub fn stroke_ui(ui: &mut crate::Ui, stroke: &mut epaint::Stroke, text: &str) {
let epaint::Stroke { width, color } = stroke;
ui.horizontal(|ui| {
ui.add(DragValue::new(width).speed(0.1).clamp_range(0.0..=5.0))
.on_hover_text("Width");
ui.color_edit_button_srgba(color);
ui.label(text);
// stroke preview:
let (_id, stroke_rect) = ui.allocate_space(ui.spacing().interact_size);
let left = stroke_rect.left_center();
let right = stroke_rect.right_center();
ui.painter().line_segment([left, right], (*width, *color));
});
}
pub(crate) fn shadow_ui(ui: &mut Ui, shadow: &mut epaint::Shadow, text: &str) {
let epaint::Shadow {
offset,
blur,
spread,
color,
} = shadow;
ui.label(text);
ui.indent(text, |ui| {
crate::Grid::new("shadow_ui").show(ui, |ui| {
ui.add(
DragValue::new(&mut offset.x)
.speed(1.0)
.clamp_range(-100.0..=100.0)
.prefix("x: "),
);
ui.add(
DragValue::new(&mut offset.y)
.speed(1.0)
.clamp_range(-100.0..=100.0)
.prefix("y: "),
);
ui.end_row();
ui.add(
DragValue::new(blur)
.speed(1.0)
.clamp_range(0.0..=100.0)
.prefix("Blur:"),
);
ui.add(
DragValue::new(spread)
.speed(1.0)
.clamp_range(0.0..=100.0)
.prefix("Spread:"),
);
});
ui.color_edit_button_srgba(color);
ui.add(stroke);
});
}