mirror of
https://github.com/emilk/egui.git
synced 2026-08-30 05:10:03 -04:00
Add example where you can change layout direction and alignment
This commit is contained in:
Emil Ernerfeldt
@@ -85,6 +85,8 @@ impl ExampleApp {
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}
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}
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// ----------------------------------------------------------------------------
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#[derive(Deserialize, Serialize)]
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struct OpenWindows {
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examples: bool,
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@@ -141,40 +143,22 @@ fn show_menu_bar(ui: &mut Ui, windows: &mut OpenWindows) {
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/// Showcase some ui code
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#[derive(Deserialize, Serialize)]
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pub struct ExampleWindow {
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checked: bool,
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count: usize,
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radio: usize,
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text_inputs: [String; 3],
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size: Vec2,
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corner_radius: f32,
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stroke_width: f32,
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num_boxes: usize,
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num_columns: usize,
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slider_value: usize,
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widgets: Widgets,
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layout: LayoutExample,
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box_painting: BoxPainting,
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painting: Painting,
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}
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impl Default for ExampleWindow {
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fn default() -> ExampleWindow {
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ExampleWindow {
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checked: true,
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radio: 0,
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count: 0,
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text_inputs: ["Hello".to_string(), "World".to_string(), "".to_string()],
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size: vec2(100.0, 50.0),
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corner_radius: 5.0,
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stroke_width: 2.0,
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num_boxes: 1,
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num_columns: 2,
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slider_value: 100,
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widgets: Default::default(),
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layout: Default::default(),
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box_painting: Default::default(),
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painting: Default::default(),
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}
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}
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@@ -196,56 +180,14 @@ impl ExampleWindow {
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CollapsingHeader::new("Widgets")
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.default_open()
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.show(ui, |ui| {
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ui.horizontal(|ui| {
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ui.add(label!("Text can have").text_color(srgba(110, 255, 110, 255)));
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ui.add(label!("color").text_color(srgba(128, 140, 255, 255)));
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ui.add(label!("and tooltips (hover me)")).tooltip_text(
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"This is a multiline tooltip that demonstrates that you can easily add tooltips to any element.\nThis is the second line.\nThis is the third.",
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);
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self.widgets.ui(ui);
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});
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ui.add(Checkbox::new(&mut self.checked, "checkbox"));
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CollapsingHeader::new("Layout")
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.default_open()
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.show(ui, |ui| self.layout.ui(ui));
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ui.horizontal(|ui| {
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if ui.add(radio(self.radio == 0, "First")).clicked {
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self.radio = 0;
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}
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if ui.add(radio(self.radio == 1, "Second")).clicked {
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self.radio = 1;
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}
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if ui.add(radio(self.radio == 2, "Final")).clicked {
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self.radio = 2;
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}
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});
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ui.horizontal(|ui| {
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if ui
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.add(Button::new("Click me"))
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.tooltip_text("This will just increase a counter.")
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.clicked
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{
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self.count += 1;
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}
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ui.add(label!(
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"The button has been clicked {} times",
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self.count
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));
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});
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ui.add(Slider::usize(&mut self.slider_value, 1..=1000).text("value"));
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if ui.add(Button::new("Double it")).clicked {
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self.slider_value *= 2;
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}
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for (i, text) in self.text_inputs.iter_mut().enumerate() {
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ui.horizontal(|ui|{
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ui.add(label!("Text input {}: ", i));
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ui.add(TextEdit::new(text).id(i));
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}); // TODO: .tooltip_text("Enter text to edit me")
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}
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});
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ui.collapsing("Layouts", |ui| {
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ui.collapsing("Columns", |ui| {
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ui.add(Slider::usize(&mut self.num_columns, 1..=10).text("Columns"));
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ui.columns(self.num_columns, |cols| {
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for (i, col) in cols.iter_mut().enumerate() {
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@@ -257,35 +199,7 @@ impl ExampleWindow {
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});
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});
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ui.collapsing("Test box rendering", |ui| {
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ui.add(Slider::f32(&mut self.size.x, 0.0..=500.0).text("width"));
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ui.add(Slider::f32(&mut self.size.y, 0.0..=500.0).text("height"));
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ui.add(Slider::f32(&mut self.corner_radius, 0.0..=50.0).text("corner_radius"));
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ui.add(Slider::f32(&mut self.stroke_width, 0.0..=10.0).text("stroke_width"));
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ui.add(Slider::usize(&mut self.num_boxes, 0..=5).text("num_boxes"));
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let pos = ui
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.reserve_space(
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vec2(self.size.x * (self.num_boxes as f32), self.size.y),
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None,
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)
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.rect
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.min;
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let mut cmds = vec![];
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for i in 0..self.num_boxes {
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cmds.push(PaintCmd::Rect {
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corner_radius: self.corner_radius,
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fill_color: Some(gray(136, 255)),
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rect: Rect::from_min_size(
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pos2(10.0 + pos.x + (i as f32) * (self.size.x * 1.1), pos.y),
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self.size,
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),
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outline: Some(Outline::new(self.stroke_width, gray(255, 255))),
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});
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}
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ui.add_paint_cmds(cmds);
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});
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ui.collapsing("Test box rendering", |ui| self.box_painting.ui(ui));
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CollapsingHeader::new("Scroll area")
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// .default_open()
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@@ -340,7 +254,135 @@ impl ExampleWindow {
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// ----------------------------------------------------------------------------
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#[derive(Deserialize, Serialize)]
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#[serde(default)]
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struct Widgets {
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checked: bool,
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count: usize,
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radio: usize,
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slider_value: usize,
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text_inputs: [String; 3],
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}
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impl Default for Widgets {
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fn default() -> Self {
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Self {
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checked: true,
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radio: 0,
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count: 0,
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slider_value: 100,
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text_inputs: ["Hello".to_string(), "World".to_string(), "".to_string()],
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}
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}
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}
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impl Widgets {
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pub fn ui(&mut self, ui: &mut Ui) {
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ui.horizontal(|ui| {
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ui.add(label!("Text can have").text_color(srgba(110, 255, 110, 255)));
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ui.add(label!("color").text_color(srgba(128, 140, 255, 255)));
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ui.add(label!("and tooltips (hover me)")).tooltip_text(
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"This is a multiline tooltip that demonstrates that you can easily add tooltips to any element.\nThis is the second line.\nThis is the third.",
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);
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});
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ui.add(Checkbox::new(&mut self.checked, "checkbox"));
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ui.horizontal(|ui| {
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if ui.add(radio(self.radio == 0, "First")).clicked {
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self.radio = 0;
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}
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if ui.add(radio(self.radio == 1, "Second")).clicked {
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self.radio = 1;
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}
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if ui.add(radio(self.radio == 2, "Final")).clicked {
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self.radio = 2;
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}
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});
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ui.horizontal(|ui| {
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if ui
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.add(Button::new("Click me"))
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.tooltip_text("This will just increase a counter.")
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.clicked
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{
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self.count += 1;
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}
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ui.add(label!("The button has been clicked {} times", self.count));
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});
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ui.add(Slider::usize(&mut self.slider_value, 1..=1000).text("value"));
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if ui.add(Button::new("Double it")).clicked {
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self.slider_value *= 2;
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}
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for (i, text) in self.text_inputs.iter_mut().enumerate() {
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ui.horizontal(|ui| {
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ui.add(label!("Text input {}: ", i));
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ui.add(TextEdit::new(text).id(i));
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}); // TODO: .tooltip_text("Enter text to edit me")
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}
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}
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}
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// ----------------------------------------------------------------------------
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#[derive(Deserialize, Serialize)]
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#[serde(default)]
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struct BoxPainting {
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size: Vec2,
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corner_radius: f32,
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stroke_width: f32,
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num_boxes: usize,
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}
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impl Default for BoxPainting {
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fn default() -> Self {
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Self {
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size: vec2(100.0, 50.0),
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corner_radius: 5.0,
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stroke_width: 2.0,
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num_boxes: 1,
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}
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}
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}
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impl BoxPainting {
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pub fn ui(&mut self, ui: &mut Ui) {
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ui.add(Slider::f32(&mut self.size.x, 0.0..=500.0).text("width"));
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ui.add(Slider::f32(&mut self.size.y, 0.0..=500.0).text("height"));
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ui.add(Slider::f32(&mut self.corner_radius, 0.0..=50.0).text("corner_radius"));
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ui.add(Slider::f32(&mut self.stroke_width, 0.0..=10.0).text("stroke_width"));
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ui.add(Slider::usize(&mut self.num_boxes, 0..=5).text("num_boxes"));
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let pos = ui
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.reserve_space(
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vec2(self.size.x * (self.num_boxes as f32), self.size.y),
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None,
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)
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.rect
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.min;
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let mut cmds = vec![];
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for i in 0..self.num_boxes {
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cmds.push(PaintCmd::Rect {
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corner_radius: self.corner_radius,
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fill_color: Some(gray(136, 255)),
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rect: Rect::from_min_size(
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pos2(10.0 + pos.x + (i as f32) * (self.size.x * 1.1), pos.y),
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self.size,
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),
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outline: Some(Outline::new(self.stroke_width, gray(255, 255))),
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});
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}
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ui.add_paint_cmds(cmds);
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}
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}
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// ----------------------------------------------------------------------------
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#[derive(Default, Deserialize, Serialize)]
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#[serde(default)]
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struct Painting {
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lines: Vec<Vec<Vec2>>,
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}
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@@ -397,6 +439,66 @@ impl Painting {
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// ----------------------------------------------------------------------------
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use crate::layout::*;
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#[derive(Deserialize, Serialize)]
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#[serde(default)]
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struct LayoutExample {
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dir: Direction,
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align: Align,
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}
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impl Default for LayoutExample {
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fn default() -> Self {
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Self {
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dir: Direction::Vertical,
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align: Align::Min,
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}
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}
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}
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impl LayoutExample {
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pub fn ui(&mut self, ui: &mut Ui) {
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ui.set_direction(self.dir);
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ui.set_align(self.align);
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ui.add(label!("Available space: {:?}", ui.available().size()));
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if ui.add(Button::new("Reset")).clicked {
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*self = Default::default();
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}
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ui.add(Separator::new());
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ui.add(label!("Direction:"));
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// TODO: enum iter
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for &dir in &[Direction::Horizontal, Direction::Vertical] {
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if ui
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.add(RadioButton::new(self.dir == dir, format!("{:?}", dir)))
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.clicked
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{
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self.dir = dir;
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}
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}
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ui.add(Separator::new());
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ui.add(label!("Align:"));
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for &align in &[Align::Min, Align::Center, Align::Max, Align::Justified] {
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if ui
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.add(RadioButton::new(
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self.align == align,
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format!("{:?}", align),
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))
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.clicked
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{
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self.align = align;
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}
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}
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}
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}
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// ----------------------------------------------------------------------------
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const LOREM_IPSUM: &str = "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
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Curabitur pretium tincidunt lacus. Nulla gravida orci a odio. Nullam varius, turpis et commodo pharetra, est eros bibendum elit, nec luctus magna felis sollicitudin mauris. Integer in mauris eu nibh euismod gravida. Duis ac tellus et risus vulputate vehicula. Donec lobortis risus a elit. Etiam tempor. Ut ullamcorper, ligula eu tempor congue, eros est euismod turpis, id tincidunt sapien risus a quam. Maecenas fermentum consequat mi. Donec fermentum. Pellentesque malesuada nulla a mi. Duis sapien sem, aliquet nec, commodo eget, consequat quis, neque. Aliquam faucibus, elit ut dictum aliquet, felis nisl adipiscing sapien, sed malesuada diam lacus eget erat. Cras mollis scelerisque nunc. Nullam arcu. Aliquam consequat. Curabitur augue lorem, dapibus quis, laoreet et, pretium ac, nisi. Aenean magna nisl, mollis quis, molestie eu, feugiat in, orci. In hac habitasse platea dictumst.";
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