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hui-examples/examples/rounded.rs
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55
hui-examples/examples/rounded.rs
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@ -0,0 +1,55 @@
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use glam::{vec4, UVec2};
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use glium::{backend::glutin::SimpleWindowBuilder, Surface};
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use winit::{
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event::{Event, WindowEvent},
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event_loop::{EventLoopBuilder, ControlFlow}
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};
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use hui::{
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UiInstance, UiSize,
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element::container::{Alignment, Container, Sides}
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};
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use hui_glium::GliumUiRenderer;
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fn main() {
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kubi_logging::init();
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let event_loop = EventLoopBuilder::new().build().unwrap();
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let (_window, display) = SimpleWindowBuilder::new().build(&event_loop);
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let mut hui = UiInstance::new();
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let mut backend = GliumUiRenderer::new(&display);
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event_loop.run(|event, window_target| {
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window_target.set_control_flow(ControlFlow::Poll);
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match event {
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Event::WindowEvent { event: WindowEvent::CloseRequested, .. } => {
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window_target.exit();
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},
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Event::AboutToWait => {
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let mut frame = display.draw();
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frame.clear_color_srgb(0.5, 0.5, 0.5, 0.);
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let resolution = UVec2::from(display.get_framebuffer_dimensions()).as_vec2();
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hui.begin();
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hui.add(Container {
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gap: 5.,
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padding: Sides::all(5.),
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align: (Alignment::Center, Alignment::Center),
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size: (UiSize::Fraction(1.), UiSize::Fraction(1.)),
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background: Some(vec4(0.1, 0.1, 0.1, 1.)),
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corner_radius: Some(10.),
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..Default::default()
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}, resolution);
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hui.end();
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backend.update(&hui);
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backend.draw(&mut frame, resolution);
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frame.finish().unwrap();
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}
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_ => (),
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}
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}).unwrap();
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}
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@ -136,9 +136,43 @@ impl UiDrawPlan {
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let corner_radius = corner_radius.unwrap_or(0.0);
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let corner_radius = corner_radius.unwrap_or(0.0);
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let vidx = swapper.current().vertices.len() as u32;
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let vidx = swapper.current().vertices.len() as u32;
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if corner_radius > 0.0 {
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if corner_radius > 0.0 {
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let mut vidx_ctr = vidx;
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todo!("rounded corners are not implemented");
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todo!("rounded corners are not implemented");
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//TODO vtx-based rounded corners
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//TODO vtx-based rounded corners
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//swapper.current_mut().indices.extend();
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//swapper.current_mut().indices.extend();
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//TODO: make this configurable or compute dynamically
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let rounded_corner_verts = 4;
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for i in 0..rounded_corner_verts {
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let cratio = i as f32 / rounded_corner_verts as f32;
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let angle = cratio * std::f32::consts::PI * 0.5;
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let x = angle.sin();
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let y = angle.cos();
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//Top-right corner
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swapper.current_mut().vertices.push(UiVertex {
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position: *position + vec2(x, 1. - y) * corner_radius + *size - vec2(corner_radius, 0.),
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color: *color,
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uv: vec2(0.0, 0.0),
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});
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//Top-left corner
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swapper.current_mut().vertices.push(UiVertex {
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position: *position + vec2(x, y),
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color: *color,
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uv: vec2(0.0, 0.0),
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});
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//Bottom-left corner
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swapper.current_mut().vertices.push(UiVertex {
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position: *position + vec2(x, y),
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color: *color,
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uv: vec2(0.0, 0.0),
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});
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//Bottom-right corner
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swapper.current_mut().vertices.push(UiVertex {
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position: *position + vec2(x, y),
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color: *color,
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uv: vec2(0.0, 0.0),
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});
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}
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} else {
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} else {
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swapper.current_mut().indices.extend([vidx, vidx + 1, vidx + 2, vidx, vidx + 2, vidx + 3]);
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swapper.current_mut().indices.extend([vidx, vidx + 1, vidx + 2, vidx, vidx + 2, vidx + 3]);
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swapper.current_mut().vertices.extend([
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swapper.current_mut().vertices.extend([
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