guido 0.9.0

A reactive Rust GUI library using wgpu for Wayland layer shell widgets
Documentation
//! Test mouse events on transformed containers.
//!
//! This example tests that hover and click work correctly on:
//! - Translated containers
//! - Rotated containers
//! - Scaled containers
//! - Nested transforms (parent transformed, child clickable)
//!
//! Uses state layer API with ripple effects to test hit testing.

use guido::prelude::*;

fn main() {
    App::new().run(|app| {
        let click_count = create_signal(0);

        app.add_surface(
            SurfaceConfig::new()
                .height(350)
                .anchor(Anchor::TOP | Anchor::LEFT | Anchor::RIGHT)
                .background_color(Color::rgb(0.1, 0.1, 0.15)),
            move || {
                container()
                    .layout(
                        Flex::column()
                            .spacing(20.0)
                            .cross_alignment(CrossAlignment::Center),
                    )
                    .padding(20.0)
                    .children([
                        // Row 1: Basic transforms
                        container()
                            .layout(
                                Flex::row()
                                    .spacing(30.0)
                                    .main_alignment(MainAlignment::Center),
                            )
                            .children([
                                // No transform (control)
                                make_box("None", Color::rgb(0.5, 0.5, 0.5), click_count),
                                // Translation
                                make_box("Translate", Color::rgb(0.3, 0.8, 0.3), click_count)
                                    .translate((20.0, 10.0)),
                                // Rotation
                                make_box("Rotate", Color::rgb(0.3, 0.3, 0.8), click_count)
                                    .rotate(15.0),
                                // Scale up
                                make_box("Scale+", Color::rgb(0.8, 0.3, 0.8), click_count)
                                    .scale(1.2),
                                // Scale down
                                make_box("Scale-", Color::rgb(0.8, 0.6, 0.3), click_count)
                                    .scale(0.7),
                            ]),
                        // Row 2: Nested transforms
                        container()
                            .layout(
                                Flex::row()
                                    .spacing(50.0)
                                    .main_alignment(MainAlignment::Center),
                            )
                            .children([
                                // Nested: parent rotated, child clickable
                                container()
                                    .width(100.0)
                                    .height(100.0)
                                    .background(Color::rgba(0.8, 0.3, 0.3, 0.3))
                                    .corners(8.0)
                                    .rotate(20.0)
                                    .layout(Flex::column().center())
                                    .child(make_box(
                                        "Nested",
                                        Color::rgb(0.8, 0.8, 0.3),
                                        click_count,
                                    )),
                                // Nested: parent scaled, child rotated and clickable
                                container()
                                    .width(100.0)
                                    .height(100.0)
                                    .background(Color::rgba(0.3, 0.8, 0.3, 0.3))
                                    .corners(8.0)
                                    .scale(1.3)
                                    .layout(Flex::column().center())
                                    .child(
                                        make_box(
                                            "Nest+Rot",
                                            Color::rgb(0.3, 0.8, 0.8),
                                            click_count,
                                        )
                                        .rotate(30.0),
                                    ),
                            ]),
                        // Click counter display
                        container().child(
                            text(move || format!("Clicks: {}", click_count.get()))
                                .font_size(20.0)
                                .color(Color::WHITE),
                        ),
                    ])
            },
        );
    });
}

fn make_box(label: &'static str, base_color: Color, click_count: RwSignal<i32>) -> Container {
    container()
        .width(70.0)
        .height(70.0)
        .background(base_color)
        .corners(8.0)
        .when_hovered(|s| s.lighter(0.15))
        .when_pressed(|s| s.ripple())
        .on_click(move || click_count.update(|c| *c += 1))
        .layout(Flex::column().center())
        .child(text(label).font_size(10.0).color(Color::WHITE).nowrap())
}