pub fn root_ui() -> impl DerefMut<Target = Ui>Expand description
Root UI. Widgets drawn with the root ui will be always presented at the end of the frame with a “default” camera. UI space would be a “default” screen space (0..screen_width(), 0..screen_height())
Examples found in repository?
examples/audio.rs (line 13)
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async fn main() {
set_pc_assets_folder("examples");
let sound1 = audio::load_sound("sound.wav").await.unwrap();
let sound2 = audio::load_sound("sound2.wav").await.unwrap();
loop {
clear_background(LIGHTGRAY);
if ui::root_ui().button(None, "Play sound 1") {
warn!("play 1!");
audio::play_sound_once(&sound1);
}
if ui::root_ui().button(None, "Play sound 2") {
warn!("play 2!");
audio::play_sound_once(&sound2);
}
next_frame().await
}
}More examples
examples/exit_dialog.rs (line 22)
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async fn main() {
prevent_quit();
let mut show_exit_dialog = false;
let mut user_decided_to_exit = false;
loop {
clear_background(GRAY);
if is_quit_requested() {
show_exit_dialog = true;
}
if show_exit_dialog {
let dialog_size = vec2(200., 70.);
let screen_size = vec2(screen_width(), screen_height());
let dialog_position = screen_size / 2. - dialog_size / 2.;
Window::new(hash!(), dialog_position, dialog_size).ui(&mut *root_ui(), |ui| {
ui.label(None, "Do you really want to quit?");
ui.separator();
ui.same_line(60.);
if ui.button(None, "Yes") {
user_decided_to_exit = true;
}
ui.same_line(120.);
if ui.button(None, "No") {
show_exit_dialog = false;
}
});
}
if user_decided_to_exit {
break;
}
next_frame().await
}
}examples/events.rs (line 9)
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async fn main() {
loop {
clear_background(WHITE);
root_ui().window(hash!(), Vec2::new(20., 20.), Vec2::new(450., 200.), |ui| {
let (mouse_x, mouse_y) = mouse_position();
ui.label(None, &format!("Mouse position: {} {}", mouse_x, mouse_y));
let (mouse_wheel_x, mouse_wheel_y) = mouse_wheel();
ui.label(None, &format!("Mouse wheel x: {}", mouse_wheel_x));
ui.label(None, &format!("Mouse wheel y: {}", mouse_wheel_y));
widgets::Group::new(hash!(), Vec2::new(200., 90.))
.position(Vec2::new(240., 0.))
.ui(ui, |ui| {
ui.label(None, "Pressed kbd keys");
if let Some(key) = get_last_key_pressed() {
ui.label(None, &format!("{:?}", key))
}
});
widgets::Group::new(hash!(), Vec2::new(200., 90.))
.position(Vec2::new(240., 92.))
.ui(ui, |ui| {
ui.label(None, "Pressed mouse keys");
if is_mouse_button_down(MouseButton::Left) {
ui.label(None, "Left");
}
if is_mouse_button_down(MouseButton::Right) {
ui.label(None, "Right");
}
if is_mouse_button_down(MouseButton::Middle) {
ui.label(None, "Middle");
}
});
});
next_frame().await;
}
}examples/ui.rs (line 156)
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async fn main() {
let mut data = Data::new();
let mut data0 = String::new();
let mut data1 = String::new();
let mut text0 = String::new();
let mut text1 = String::new();
let mut number0 = 0.;
let mut number1 = 0.;
let texture: Texture2D = load_texture("examples/ferris.png").await.unwrap();
loop {
clear_background(WHITE);
widgets::Window::new(hash!(), vec2(400., 200.), vec2(320., 400.))
.label("Shop")
.titlebar(true)
.ui(&mut *root_ui(), |ui| {
for i in 0..30 {
Group::new(hash!("shop", i), Vec2::new(300., 80.)).ui(ui, |ui| {
ui.label(Vec2::new(10., 10.), &format!("Item N {}", i));
ui.label(Vec2::new(260., 40.), "10/10");
ui.label(Vec2::new(200., 58.), &format!("{} kr", 800));
if ui.button(Vec2::new(260., 55.), "buy") {
data.inventory.push(format!("Item {}", i));
}
});
}
});
widgets::Window::new(hash!(), vec2(100., 220.), vec2(542., 430.))
.label("Fitting window")
.titlebar(true)
.ui(&mut *root_ui(), |ui| {
Group::new(hash!(), Vec2::new(230., 400.)).ui(ui, |ui| {
data.slots(ui);
});
Group::new(hash!(), Vec2::new(280., 400.)).ui(ui, |ui| {
data.inventory(ui);
});
});
widgets::Window::new(hash!(), vec2(470., 50.), vec2(300., 300.))
.label("Megaui Showcase Window")
.ui(&mut *root_ui(), |ui| {
ui.tree_node(hash!(), "input", |ui| {
ui.label(None, "Some random text");
if ui.button(None, "click me") {
println!("hi");
}
ui.separator();
ui.label(None, "Some other random text");
if ui.button(None, "other button") {
println!("hi2");
}
ui.separator();
ui.input_text(hash!(), "<- input text 1", &mut data0);
ui.input_text(hash!(), "<- input text 2", &mut data1);
ui.label(
None,
&format!("Text entered: \"{}\" and \"{}\"", data0, data1),
);
ui.separator();
});
ui.tree_node(hash!(), "buttons", |ui| {
widgets::Button::new(texture.clone())
.size(vec2(120., 70.))
.ui(ui);
ui.same_line(0.);
widgets::Button::new("Button").size(vec2(120., 70.)).ui(ui);
widgets::Button::new("Button").size(vec2(120., 70.)).ui(ui);
ui.same_line(0.);
widgets::Button::new(texture.clone())
.size(vec2(120., 70.))
.ui(ui);
});
ui.tree_node(hash!(), "sliders", |ui| {
ui.slider(hash!(), "[-10 .. 10]", -10f32..10f32, &mut number0);
ui.slider(hash!(), "[0 .. 100]", 0f32..100f32, &mut number1);
});
ui.tree_node(hash!(), "editbox 1", |ui| {
ui.label(None, "This is editbox!");
ui.editbox(hash!(), vec2(285., 165.), &mut text0);
});
ui.tree_node(hash!(), "editbox 2", |ui| {
ui.label(None, "This is editbox!");
ui.editbox(hash!(), vec2(285., 165.), &mut text1);
});
});
match data.fit_command.take() {
Some(FittingCommand::Unfit { target_slot }) => data.set_item(target_slot, None),
Some(FittingCommand::Fit { target_slot, item }) => {
data.set_item(target_slot, Some(item));
}
Some(FittingCommand::Refit {
target_slot,
origin_slot,
}) => {
let origin_item = data
.slots
.iter()
.find_map(|(_, slot)| {
if slot.id == origin_slot {
Some(slot.item.clone())
} else {
None
}
})
.flatten();
data.set_item(target_slot, origin_item);
data.set_item(origin_slot, None);
}
None => {}
};
next_frame().await;
}
}examples/ui_skins.rs (line 8)
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async fn main() {
let skin1 = {
let label_style = root_ui()
.style_builder()
.font(include_bytes!("../examples/ui_assets/HTOWERT.TTF"))
.unwrap()
.text_color(Color::from_rgba(180, 180, 120, 255))
.font_size(30)
.build();
let window_style = root_ui()
.style_builder()
.background(
Image::from_file_with_format(
include_bytes!("../examples/ui_assets/window_background.png"),
None,
)
.unwrap(),
)
.background_margin(RectOffset::new(20.0, 20.0, 10.0, 10.0))
.margin(RectOffset::new(-20.0, -30.0, 0.0, 0.0))
.build();
let button_style = root_ui()
.style_builder()
.background(
Image::from_file_with_format(
include_bytes!("../examples/ui_assets/button_background.png"),
None,
)
.unwrap(),
)
.background_margin(RectOffset::new(37.0, 37.0, 5.0, 5.0))
.margin(RectOffset::new(10.0, 10.0, 0.0, 0.0))
.background_hovered(
Image::from_file_with_format(
include_bytes!("../examples/ui_assets/button_hovered_background.png"),
None,
)
.unwrap(),
)
.background_clicked(
Image::from_file_with_format(
include_bytes!("../examples/ui_assets/button_clicked_background.png"),
None,
)
.unwrap(),
)
.font(include_bytes!("../examples/ui_assets/HTOWERT.TTF"))
.unwrap()
.text_color(Color::from_rgba(180, 180, 100, 255))
.font_size(40)
.build();
let editbox_style = root_ui()
.style_builder()
.background_margin(RectOffset::new(0., 0., 0., 0.))
.font(include_bytes!("../examples/ui_assets/HTOWERT.TTF"))
.unwrap()
.text_color(Color::from_rgba(120, 120, 120, 255))
.color_selected(Color::from_rgba(190, 190, 190, 255))
.font_size(50)
.build();
Skin {
editbox_style,
window_style,
button_style,
label_style,
..root_ui().default_skin()
}
};
let skin2 = {
let label_style = root_ui()
.style_builder()
.font(include_bytes!("../examples/ui_assets/MinimalPixel v2.ttf"))
.unwrap()
.text_color(Color::from_rgba(120, 120, 120, 255))
.font_size(25)
.build();
let window_style = root_ui()
.style_builder()
.background(
Image::from_file_with_format(
include_bytes!("../examples/ui_assets/window_background_2.png"),
None,
)
.unwrap(),
)
.background_margin(RectOffset::new(52.0, 52.0, 52.0, 52.0))
.margin(RectOffset::new(-30.0, 0.0, -30.0, 0.0))
.build();
let button_style = root_ui()
.style_builder()
.background(
Image::from_file_with_format(
include_bytes!("../examples/ui_assets/button_background_2.png"),
None,
)
.unwrap(),
)
.background_margin(RectOffset::new(8.0, 8.0, 8.0, 8.0))
.background_hovered(
Image::from_file_with_format(
include_bytes!("../examples/ui_assets/button_hovered_background_2.png"),
None,
)
.unwrap(),
)
.background_clicked(
Image::from_file_with_format(
include_bytes!("../examples/ui_assets/button_clicked_background_2.png"),
None,
)
.unwrap(),
)
.font(include_bytes!("../examples/ui_assets/MinimalPixel v2.ttf"))
.unwrap()
.text_color(Color::from_rgba(180, 180, 100, 255))
.font_size(40)
.build();
let checkbox_style = root_ui()
.style_builder()
.background(
Image::from_file_with_format(
include_bytes!("../examples/ui_assets/checkbox_background.png"),
None,
)
.unwrap(),
)
.background_hovered(
Image::from_file_with_format(
include_bytes!("../examples/ui_assets/checkbox_hovered_background.png"),
None,
)
.unwrap(),
)
.background_clicked(
Image::from_file_with_format(
include_bytes!("../examples/ui_assets/checkbox_clicked_background.png"),
None,
)
.unwrap(),
)
.build();
let editbox_style = root_ui()
.style_builder()
.background(
Image::from_file_with_format(
include_bytes!("../examples/ui_assets/editbox_background.png"),
None,
)
.unwrap(),
)
.background_margin(RectOffset::new(2., 2., 2., 2.))
.font(include_bytes!("../examples/ui_assets/MinimalPixel v2.ttf"))
.unwrap()
.text_color(Color::from_rgba(120, 120, 120, 255))
.font_size(25)
.build();
let combobox_style = root_ui()
.style_builder()
.background(
Image::from_file_with_format(
include_bytes!("../examples/ui_assets/combobox_background.png"),
None,
)
.unwrap(),
)
.background_margin(RectOffset::new(4., 25., 6., 6.))
.font(include_bytes!("../examples/ui_assets/MinimalPixel v2.ttf"))
.unwrap()
.text_color(Color::from_rgba(120, 120, 120, 255))
.color(Color::from_rgba(210, 210, 210, 255))
.font_size(25)
.build();
Skin {
window_style,
button_style,
label_style,
checkbox_style,
editbox_style,
combobox_style,
..root_ui().default_skin()
}
};
let default_skin = root_ui().default_skin().clone();
let mut window1_skin = skin1.clone();
let mut window2_skin = skin2.clone();
let mut checkbox = false;
let mut text = String::new();
let mut number = 0.0f32;
let mut combobox = 0;
loop {
clear_background(GRAY);
root_ui().group(hash!(), vec2(70.0, 100.0), |ui| {
ui.label(None, "Window 1");
if ui.button(None, "Skin 1") {
window1_skin = skin1.clone();
}
if ui.button(None, "Skin 2") {
window1_skin = skin2.clone();
}
if ui.button(None, "No Skin") {
window1_skin = default_skin.clone();
}
});
root_ui().same_line(0.);
root_ui().group(hash!(), vec2(70.0, 100.0), |ui| {
ui.label(None, "Window 2");
if ui.button(None, "Skin 1") {
window2_skin = skin1.clone();
}
if ui.button(None, "Skin 2") {
window2_skin = skin2.clone();
}
if ui.button(None, "No Skin") {
window2_skin = default_skin.clone();
}
});
root_ui().push_skin(&window1_skin);
root_ui().window(hash!(), vec2(20., 250.), vec2(300., 300.), |ui| {
widgets::Button::new("Play")
.position(vec2(65.0, 15.0))
.ui(ui);
widgets::Button::new("Options")
.position(vec2(40.0, 75.0))
.ui(ui);
widgets::Button::new("Quit")
.position(vec2(65.0, 195.0))
.ui(ui);
});
root_ui().pop_skin();
root_ui().push_skin(&window2_skin);
root_ui().window(hash!(), vec2(250., 20.), vec2(500., 250.), |ui| {
ui.checkbox(hash!(), "Checkbox 1", &mut checkbox);
ui.combo_box(
hash!(),
"Combobox",
&["First option", "Second option"],
&mut combobox,
);
ui.input_text(hash!(), "Text", &mut text);
ui.drag(hash!(), "Drag", None, &mut number);
widgets::Button::new("Apply")
.position(vec2(80.0, 150.0))
.ui(ui);
widgets::Button::new("Cancel")
.position(vec2(280.0, 150.0))
.ui(ui);
});
root_ui().pop_skin();
next_frame().await;
}
}examples/shadertoy.rs (line 120)
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async fn main() {
let ferris = load_texture("examples/rust.png").await.unwrap();
let (color_picker_texture, color_picker_image) = color_picker_texture(200, 200);
let mut fragment_shader = DEFAULT_FRAGMENT_SHADER.to_string();
let mut vertex_shader = DEFAULT_VERTEX_SHADER.to_string();
let pipeline_params = PipelineParams {
depth_write: true,
depth_test: Comparison::LessOrEqual,
..Default::default()
};
let mut material = load_material(
ShaderSource::Glsl {
vertex: &vertex_shader,
fragment: &fragment_shader,
},
MaterialParams {
pipeline_params,
..Default::default()
},
)
.unwrap();
let mut error: Option<String> = None;
enum Mesh {
Sphere,
Cube,
Plane,
}
let mut mesh = Mesh::Sphere;
let mut camera = Camera3D {
position: vec3(-15., 15., -5.),
up: vec3(0., 1., 0.),
target: vec3(0., 5., -5.),
..Default::default()
};
let mut colorpicker_window = false;
let mut color_picking_uniform = None;
let mut new_uniform_window = false;
let mut new_uniform_name = String::new();
let mut uniforms: Vec<(String, Uniform)> = vec![];
loop {
clear_background(WHITE);
set_camera(&camera);
draw_grid(
20,
1.,
Color::new(0.55, 0.55, 0.55, 0.75),
Color::new(0.75, 0.75, 0.75, 0.75),
);
gl_use_material(&material);
match mesh {
Mesh::Plane => draw_plane(vec3(0., 2., 0.), vec2(5., 5.), Some(&ferris), WHITE),
Mesh::Sphere => draw_sphere(vec3(0., 6., 0.), 5., Some(&ferris), WHITE),
Mesh::Cube => draw_cube(vec3(0., 5., 0.), vec3(10., 10., 10.), Some(&ferris), WHITE),
}
gl_use_default_material();
set_default_camera();
let mut need_update = false;
widgets::Window::new(hash!(), vec2(20., 20.), vec2(470., 650.))
.label("Shader")
.ui(&mut *root_ui(), |ui| {
ui.label(None, "Camera: ");
ui.same_line(0.0);
if ui.button(None, "Ortho") {
camera.projection = Projection::Orthographics;
}
ui.same_line(0.0);
if ui.button(None, "Perspective") {
camera.projection = Projection::Perspective;
}
ui.label(None, "Mesh: ");
ui.same_line(0.0);
if ui.button(None, "Sphere") {
mesh = Mesh::Sphere;
}
ui.same_line(0.0);
if ui.button(None, "Cube") {
mesh = Mesh::Cube;
}
ui.same_line(0.0);
if ui.button(None, "Plane") {
mesh = Mesh::Plane;
}
ui.label(None, "Uniforms:");
ui.separator();
for (i, (name, uniform)) in uniforms.iter_mut().enumerate() {
ui.label(None, &format!("{}", name));
ui.same_line(120.0);
match uniform {
Uniform::Float1(x) => {
widgets::InputText::new(hash!(hash!(), i))
.size(vec2(200.0, 19.0))
.filter_numbers()
.ui(ui, x);
if let Ok(x) = x.parse::<f32>() {
material.set_uniform(name, x);
}
}
Uniform::Float2(x, y) => {
widgets::InputText::new(hash!(hash!(), i))
.size(vec2(99.0, 19.0))
.filter_numbers()
.ui(ui, x);
ui.same_line(0.0);
widgets::InputText::new(hash!(hash!(), i))
.size(vec2(99.0, 19.0))
.filter_numbers()
.ui(ui, y);
if let (Ok(x), Ok(y)) = (x.parse::<f32>(), y.parse::<f32>()) {
material.set_uniform(name, (x, y));
}
}
Uniform::Float3(x, y, z) => {
widgets::InputText::new(hash!(hash!(), i))
.size(vec2(65.0, 19.0))
.filter_numbers()
.ui(ui, x);
ui.same_line(0.0);
widgets::InputText::new(hash!(hash!(), i))
.size(vec2(65.0, 19.0))
.filter_numbers()
.ui(ui, y);
ui.same_line(0.0);
widgets::InputText::new(hash!(hash!(), i))
.size(vec2(65.0, 19.0))
.filter_numbers()
.ui(ui, z);
if let (Ok(x), Ok(y), Ok(z)) =
(x.parse::<f32>(), y.parse::<f32>(), z.parse::<f32>())
{
material.set_uniform(name, (x, y, z));
}
}
Uniform::Color(color) => {
let mut canvas = ui.canvas();
let cursor = canvas.cursor();
canvas.rect(
Rect::new(cursor.x + 20.0, cursor.y, 50.0, 18.0),
Color::new(0.2, 0.2, 0.2, 1.0),
Color::new(color.x, color.y, color.z, 1.0),
);
if ui.button(None, "change") {
colorpicker_window = true;
color_picking_uniform = Some(name.to_owned());
}
material.set_uniform(name, (color.x, color.y, color.z));
}
}
}
ui.separator();
if ui.button(None, "New uniform") {
new_uniform_window = true;
}
TreeNode::new(hash!(), "Fragment shader")
.init_unfolded()
.ui(ui, |ui| {
if ui.editbox(hash!(), vec2(440., 200.), &mut fragment_shader) {
need_update = true;
};
});
ui.tree_node(hash!(), "Vertex shader", |ui| {
if ui.editbox(hash!(), vec2(440., 300.), &mut vertex_shader) {
need_update = true;
};
});
if let Some(ref error) = error {
Label::new(error).multiline(14.0).ui(ui);
}
});
if new_uniform_window {
widgets::Window::new(hash!(), vec2(100., 100.), vec2(200., 80.))
.label("New uniform")
.ui(&mut *root_ui(), |ui| {
if ui.active_window_focused() == false {
new_uniform_window = false;
}
ui.input_text(hash!(), "Name", &mut new_uniform_name);
let uniform_type = ui.combo_box(
hash!(),
"Type",
&["Float1", "Float2", "Float3", "Color"],
None,
);
if ui.button(None, "Add") {
if new_uniform_name.is_empty() == false {
let uniform = match uniform_type {
0 => Uniform::Float1("0".to_string()),
1 => Uniform::Float2("0".to_string(), "0".to_string()),
2 => Uniform::Float3(
"0".to_string(),
"0".to_string(),
"0".to_string(),
),
3 => Uniform::Color(vec3(0.0, 0.0, 0.0)),
_ => unreachable!(),
};
uniforms.push((new_uniform_name.clone(), uniform));
new_uniform_name.clear();
need_update = true;
}
new_uniform_window = false;
}
ui.same_line(0.0);
if ui.button(None, "Cancel") {
new_uniform_window = false;
}
});
}
if colorpicker_window {
colorpicker_window &= widgets::Window::new(hash!(), vec2(140., 100.), vec2(210., 240.))
.label("Colorpicker")
.ui(&mut *root_ui(), |ui| {
if ui.active_window_focused() == false {
colorpicker_window = false;
}
let mut canvas = ui.canvas();
let cursor = canvas.cursor();
let mouse = mouse_position();
let x = mouse.0 as i32 - cursor.x as i32;
let y = mouse.1 as i32 - (cursor.y as i32 + 20);
let color = color_picker_image
.get_pixel(x.max(0).min(199) as u32, y.max(0).min(199) as u32);
canvas.rect(
Rect::new(cursor.x, cursor.y, 200.0, 18.0),
Color::new(0.0, 0.0, 0.0, 1.0),
Color::new(color.r, color.g, color.b, 1.0),
);
canvas.image(
Rect::new(cursor.x, cursor.y + 20.0, 200.0, 200.0),
&color_picker_texture,
);
if x >= 0 && x < 200 && y >= 0 && y < 200 {
canvas.rect(
Rect::new(mouse.0 - 3.5, mouse.1 - 3.5, 7.0, 7.0),
Color::new(0.3, 0.3, 0.3, 1.0),
Color::new(1.0, 1.0, 1.0, 1.0),
);
if is_mouse_button_down(MouseButton::Left) {
colorpicker_window = false;
let uniform_name = color_picking_uniform.take().unwrap();
uniforms
.iter_mut()
.find(|(name, _)| name == &uniform_name)
.unwrap()
.1 = Uniform::Color(vec3(color.r, color.g, color.b));
}
}
});
}
if need_update {
let uniforms = uniforms
.iter()
.map(|(name, uniform)| (name.clone(), uniform.uniform_type()))
.collect::<Vec<_>>();
match load_material(
ShaderSource::Glsl {
vertex: &vertex_shader,
fragment: &fragment_shader,
},
MaterialParams {
pipeline_params,
uniforms,
textures: vec![],
},
) {
Ok(new_material) => {
material = new_material;
error = None;
}
Err(err) => {
error = Some(format!("{:#?}", err));
}
}
}
next_frame().await
}
}