use mtk::animation::Curve;
use mtk::style::{AlignItems, JustifyContent, Size, Style, TextStyle};
use mtk::text_property::FontWeight;
use mtk::ui::adapter::adapt;
use mtk::ui::widgets::{
PixelBuffer, badge, button, checkbox, chip, column, divider, dropdown, input_text,
pixel_canvas, progress_bar, radio_group, row, scroll_view, slider, spacer, switch, text,
text_area,
};
use mtk::ui::{View, ViewLayerExt, ViewStyleExt};
use mtk::windowing::{Window, WindowAttributes, WindowDimension};
use mtk::{BoxShadow, Lens, TooltipAnimation, TooltipPlacement, clr, rgb, rgba};
#[derive(Clone, Debug, Lens)]
pub struct GalleryState {
pub counter: i32,
pub checkbox_notifications: bool,
pub checkbox_analytics: bool,
pub switch_dark_mode: bool,
pub switch_auto_save: bool,
pub slider_volume: f32,
pub slider_brightness: f32,
pub username_input: String,
pub bio_textarea: String,
pub status_message: String,
pub selected_framework: usize,
pub radio_frequency: usize,
pub is_modal_open: bool,
pub is_player_open: bool,
pub tags: Vec<String>,
}
#[derive(Clone, Debug)]
pub enum GalleryMsg {
IncrementCounter,
DecrementCounter,
ResetCounter,
ToggleNotifications(bool),
ToggleAnalytics(bool),
ToggleDarkMode(bool),
ToggleAutoSave(bool),
SetVolume(f32),
SetBrightness(f32),
UpdateUsername(String),
UpdateBio(String),
SelectFramework(usize),
SelectFrequency(usize),
OpenModal(bool),
OpenPlayer(bool),
DeleteTag(String),
ResetTags,
}
fn update(state: &mut GalleryState, msg: GalleryMsg) {
match msg {
GalleryMsg::IncrementCounter => {
state.counter += 1;
state.status_message = format!("Counter incremented to {}", state.counter);
}
GalleryMsg::DecrementCounter => {
state.counter -= 1;
state.status_message = format!("Counter decremented to {}", state.counter);
}
GalleryMsg::ResetCounter => {
state.counter = 0;
state.status_message = "Counter reset to 0".to_string();
}
GalleryMsg::ToggleNotifications(val) => {
state.checkbox_notifications = val;
state.status_message =
format!("Notifications {}", if val { "enabled" } else { "disabled" });
}
GalleryMsg::ToggleAnalytics(val) => {
state.checkbox_analytics = val;
state.status_message =
format!("Analytics {}", if val { "enabled" } else { "disabled" });
}
GalleryMsg::ToggleDarkMode(val) => {
state.switch_dark_mode = val;
state.status_message =
format!("Dark mode {}", if val { "enabled" } else { "disabled" });
}
GalleryMsg::ToggleAutoSave(val) => {
state.switch_auto_save = val;
state.status_message =
format!("Auto-save {}", if val { "enabled" } else { "disabled" });
}
GalleryMsg::SetVolume(val) => {
state.slider_volume = val;
}
GalleryMsg::SetBrightness(val) => {
state.slider_brightness = val;
}
GalleryMsg::UpdateUsername(txt) => {
state.username_input = txt;
}
GalleryMsg::UpdateBio(txt) => {
state.bio_textarea = txt;
}
GalleryMsg::SelectFramework(idx) => {
state.selected_framework = idx;
state.status_message = format!("Framework preset {} chosen", idx + 1);
}
GalleryMsg::SelectFrequency(idx) => {
state.radio_frequency = idx;
state.status_message = format!("Frequency preset {} chosen", idx + 1);
}
GalleryMsg::OpenModal(is_open) => {
state.is_modal_open = is_open;
state.status_message = if is_open {
"Modal dialog opened".to_string()
} else {
"Modal dialog closed".to_string()
};
}
GalleryMsg::OpenPlayer(is_open) => {
state.is_player_open = is_open;
state.status_message = if is_open {
"Fullscreen player sheet expanded".to_string()
} else {
"Fullscreen player sheet closed".to_string()
};
}
GalleryMsg::DeleteTag(tag_name) => {
state.tags.retain(|t| t != &tag_name);
state.status_message = format!("Tag '{}' removed", tag_name);
}
GalleryMsg::ResetTags => {
state.tags = vec![
"Rust".into(),
"WGPU".into(),
"Muse Layout".into(),
"Parley Text".into(),
"Flexbox Wrap".into(),
"Layer Surfaces".into(),
"Cross Platform".into(),
"Zero Garbage".into(),
];
state.status_message = "Tags reset".to_string();
}
}
}
fn card_header(
title: &str,
subtitle: &str,
dark_mode: bool,
) -> impl View<GalleryState, Message = GalleryMsg> + use<> {
let title_color = if dark_mode {
rgb!(248, 250, 252)
} else {
rgb!(15, 23, 42)
};
let sub_color = if dark_mode {
rgb!(148, 163, 184)
} else {
rgb!(100, 116, 139)
};
column((
text(title).style(Style::new().set_text_style(TextStyle {
font_size: 17.0,
font_weight: FontWeight::BOLD,
color: title_color,
..Default::default()
})),
text(subtitle).style(Style::new().set_text_style(TextStyle {
font_size: 13.0,
color: sub_color,
wrap: true,
..Default::default()
})),
))
.style(Style::new().gap(2.0))
}
fn app(state: &GalleryState) -> impl View<GalleryState, Message = GalleryMsg> + use<> {
let dark = state.switch_dark_mode;
let bg_card = if dark { rgb!(30, 41, 59) } else { clr!(white) };
let border_card = if dark {
rgb!(51, 65, 85)
} else {
rgb!(226, 232, 240)
};
let text_primary = if dark {
rgb!(248, 250, 252)
} else {
rgb!(15, 23, 42)
};
let text_secondary = if dark {
rgb!(148, 163, 184)
} else {
rgb!(100, 116, 139)
};
let input_bg = if dark {
rgb!(15, 23, 42)
} else {
rgb!(248, 250, 252)
};
let input_border = if dark {
rgb!(71, 85, 105)
} else {
rgb!(203, 213, 225)
};
let caret_color = if dark {
rgb!(96, 165, 250)
} else {
rgb!(37, 99, 235)
};
let buttons_card = column((
card_header(
"Buttons & Hover Tooltips",
"Interactive buttons with anchored floating tooltips",
dark,
),
row((
button("Primary Action")
.on_click(GalleryMsg::IncrementCounter)
.tooltip("Increments counter by 1"),
button("Secondary")
.secondary()
.on_click(GalleryMsg::DecrementCounter)
.tooltip("Decrements counter by 1"),
button("Danger Reset")
.danger()
.on_click(GalleryMsg::ResetCounter)
.tooltip("Resets counter to zero")
.placement(TooltipPlacement::Bottom)
.animation(TooltipAnimation::FadeAndScale)
.delay_ms(500),
button("Disabled")
.disabled(true)
.tooltip("Action is disabled"),
))
.style(
Style::new()
.width(Size::Percent(1.0))
.gap(10.0)
.align_items(AlignItems::Center)
.wrap(),
),
text(format!("Counter: {}", state.counter)).style(Style::new().set_text_style(TextStyle {
font_size: 14.0,
font_weight: FontWeight::SEMI_BOLD,
color: if dark {
rgb!(96, 165, 250)
} else {
rgb!(37, 99, 235)
},
..Default::default()
})),
))
.style(
Style::new()
.width(Size::Percent(1.0))
.padding(18.0)
.gap(14.0)
.corner_radius(10.0)
.bg_color(bg_card)
.border(1.0, border_card)
.box_shadow(
BoxShadow::new(rgba!(0, 0, 0, 10))
.blur(6.0)
.offset(0.0, 2.0),
),
);
let framework_options = vec![
"MTK (Native Engine)".to_string(),
"WGPU (GPU Accelerated)".to_string(),
"Muse (Flexbox Engine)".to_string(),
"Parley (Cosmic Text)".to_string(),
];
let overlay_card = column((
card_header(
"Layer Surfaces & Overlays",
"Fullscreen bottom sheets, modal dialogs, and select dropdowns",
dark,
),
row((
button("Open Music Player Sheet")
.on_click(GalleryMsg::OpenPlayer(true))
.tooltip("Slides up expanded music player sheet"),
button("Open Modal Dialog")
.secondary()
.on_click(GalleryMsg::OpenModal(true))
.tooltip("Opens centered modal with backdrop scrim"),
))
.style(Style::new().width(Size::Fill).gap(10.0).wrap()),
divider().color(border_card),
column((
text("Select Component Preset:").style(Style::new().set_text_style(TextStyle {
font_size: 13.0,
font_weight: FontWeight::MEDIUM,
color: text_secondary,
..Default::default()
})),
dropdown(Some(state.selected_framework), framework_options)
.bg_color(if dark { rgb!(15, 23, 42) } else { clr!(white) })
.text_color(text_primary)
.border_color(border_card)
.on_select(GalleryMsg::SelectFramework),
))
.style(Style::new().width(Size::Percent(1.0)).gap(6.0)),
))
.style(
Style::new()
.width(Size::Percent(1.0))
.padding(18.0)
.gap(14.0)
.corner_radius(10.0)
.bg_color(bg_card)
.border(1.0, border_card)
.box_shadow(
BoxShadow::new(rgba!(0, 0, 0, 10))
.blur(6.0)
.offset(0.0, 2.0),
),
);
let freq_options = vec![
"High Performance (120 FPS)".to_string(),
"Balanced (60 FPS)".to_string(),
"Power Saver (30 FPS)".to_string(),
];
let selection_card = column((
card_header(
"Selection & Radio Groups",
"Checkboxes, animated switches, and radio groups",
dark,
),
row((
checkbox(state.checkbox_notifications)
.label("Push Notifications")
.on_toggle(GalleryMsg::ToggleNotifications),
checkbox(state.checkbox_analytics)
.label("Telemetry Analytics")
.on_toggle(GalleryMsg::ToggleAnalytics),
))
.style(Style::new().gap(20.0).wrap()),
row((
switch(state.switch_dark_mode)
.label("Dark Theme")
.on_toggle(GalleryMsg::ToggleDarkMode),
switch(state.switch_auto_save)
.label("Auto-save State")
.on_toggle(GalleryMsg::ToggleAutoSave),
))
.style(Style::new().gap(24.0).wrap()),
divider().color(border_card),
column((
text("Frame Rate & Sync Profile:").style(Style::new().set_text_style(TextStyle {
font_size: 13.0,
font_weight: FontWeight::MEDIUM,
color: text_secondary,
..Default::default()
})),
radio_group(
state.radio_frequency,
freq_options,
GalleryMsg::SelectFrequency,
),
))
.style(Style::new().gap(8.0)),
))
.style(
Style::new()
.width(Size::Percent(1.0))
.padding(18.0)
.gap(14.0)
.corner_radius(10.0)
.bg_color(bg_card)
.border(1.0, border_card)
.box_shadow(
BoxShadow::new(rgba!(0, 0, 0, 10))
.blur(6.0)
.offset(0.0, 2.0),
),
);
let progress_card = column((
card_header(
"Progress & Sliders",
"Smooth continuous sliders and flicker-free progress bars",
dark,
),
column((
row((
text("Volume Output").style(Style::new().set_text_style(TextStyle {
font_size: 13.0,
font_weight: FontWeight::MEDIUM,
color: text_primary,
..Default::default()
})),
spacer(),
text(format!("{:.0}%", state.slider_volume)).style(Style::new().set_text_style(
TextStyle {
font_size: 13.0,
font_weight: FontWeight::BOLD,
color: text_secondary,
..Default::default()
},
)),
)),
slider(state.slider_volume, 0.0, 100.0).on_change(GalleryMsg::SetVolume),
progress_bar(state.slider_volume / 100.0),
))
.style(Style::new().gap(6.0)),
column((
row((
text("Indeterminate Background Sync").style(Style::new().set_text_style(
TextStyle {
font_size: 13.0,
font_weight: FontWeight::MEDIUM,
color: text_primary,
..Default::default()
},
)),
spacer(),
badge("Running").success(),
)),
progress_bar(0.0)
.indeterminate(true)
.fill_color(rgb!(168, 85, 247)),
))
.style(Style::new().gap(6.0)),
))
.style(
Style::new()
.width(Size::Percent(1.0))
.padding(18.0)
.gap(14.0)
.corner_radius(10.0)
.bg_color(bg_card)
.border(1.0, border_card)
.box_shadow(
BoxShadow::new(rgba!(0, 0, 0, 10))
.blur(6.0)
.offset(0.0, 2.0),
),
);
let tag_views: Vec<_> = state
.tags
.iter()
.map(|t| {
let t_clone = t.clone();
chip(t)
.bg_color(if dark {
rgb!(15, 23, 42)
} else {
rgb!(241, 245, 249)
})
.text_color(if dark {
rgb!(226, 232, 240)
} else {
rgb!(30, 41, 59)
})
.on_delete(move || GalleryMsg::DeleteTag(t_clone.clone()))
})
.collect();
let tag_cloud_card = column((
row((
card_header(
"Flex-Wrap Tag Cloud & Badges",
"Dynamic multi-line flex wrapping and status pills",
dark,
),
spacer(),
button("Reset Tags")
.secondary()
.on_click(GalleryMsg::ResetTags)
.tooltip("Restores default tags"),
))
.style(
Style::new()
.width(Size::Fill)
.align_items(AlignItems::Center)
.justify_content(JustifyContent::SpaceBetween),
),
row((
badge("System Ready").success(),
badge("Optimization Active").info(),
badge("Thermal Alert").warning(),
badge("Degraded Mode").error(),
))
.style(Style::new().gap(8.0).wrap()),
divider().color(border_card),
row(tag_views).style(
Style::new()
.width(Size::Percent(1.0))
.gap(8.0)
.wrap()
.align_items(AlignItems::Center),
),
))
.style(
Style::new()
.width(Size::Percent(1.0))
.padding(18.0)
.gap(14.0)
.corner_radius(10.0)
.bg_color(bg_card)
.border(1.0, border_card)
.box_shadow(
BoxShadow::new(rgba!(0, 0, 0, 10))
.blur(6.0)
.offset(0.0, 2.0),
),
);
let inputs_card = column((
card_header(
"Text Editing & Inputs",
"Single-line inputs and multiline text areas with undo/redo",
dark,
),
column((
text("Developer Handle").style(Style::new().set_text_style(TextStyle {
font_size: 13.0,
font_weight: FontWeight::MEDIUM,
color: text_primary,
..Default::default()
})),
adapt(
input_text().placeholder("Enter your username...").style(
Style::new()
.width(Size::Percent(1.0))
.height(Size::Fixed(38))
.padding_xy(12.0, 8.0)
.bg_color(input_bg)
.border(1.0, input_border)
.corner_radius(6.0)
.set_text_style(TextStyle {
font_size: 14.0,
color: text_primary,
caret_color,
..Default::default()
}),
),
GalleryState::username_input,
GalleryMsg::UpdateUsername,
),
))
.style(Style::new().gap(6.0)),
column((
text("Biography / Project Summary").style(Style::new().set_text_style(TextStyle {
font_size: 13.0,
font_weight: FontWeight::MEDIUM,
color: text_primary,
..Default::default()
})),
adapt(
text_area().style(
Style::new()
.width(Size::Percent(1.0))
.height(Size::Fixed(100))
.padding_xy(12.0, 8.0)
.bg_color(input_bg)
.border(1.0, input_border)
.corner_radius(6.0)
.set_text_style(TextStyle {
font_size: 14.0,
color: text_primary,
caret_color,
..Default::default()
}),
),
GalleryState::bio_textarea,
GalleryMsg::UpdateBio,
),
))
.style(Style::new().gap(6.0)),
))
.style(
Style::new()
.width(Size::Percent(1.0))
.padding(18.0)
.gap(14.0)
.corner_radius(10.0)
.bg_color(bg_card)
.border(1.0, border_card)
.box_shadow(
BoxShadow::new(rgba!(0, 0, 0, 10))
.blur(6.0)
.offset(0.0, 2.0),
),
);
let canvas_card = column((
card_header(
"Canvas Graphics & Shaders",
"Procedural pixel buffer rendering at native frame rates",
dark,
),
row((
pixel_canvas(|buf: &mut PixelBuffer| {
let w = buf.width;
let h = buf.height;
for y in 0..h {
for x in 0..w {
let r = (x * 255 / w) as u8;
let g = (y * 255 / h) as u8;
let b = 180u8;
buf.set_pixel(x, y, rgb!(r, g, b).into());
}
}
})
.style(
Style::new()
.width(Size::Fixed(140))
.height(Size::Fixed(100))
.corner_radius(8.0)
.border(1.0, border_card),
),
column((
text("Procedural RGB Gradient").style(Style::new().set_text_style(TextStyle {
font_size: 14.0,
font_weight: FontWeight::SEMI_BOLD,
color: text_primary,
..Default::default()
})),
text("Software rasterizer output directly blitted to GPU framebuffers without overhead.")
.style(Style::new().width(Size::Fill).set_text_style(TextStyle {
font_size: 12.0,
color: text_secondary,
wrap: true,
..Default::default()
})),
))
.style(Style::new().gap(4.0).flex_grow(1.0)),
))
.style(Style::new().gap(16.0).align_items(AlignItems::Center)),
))
.style(
Style::new()
.width(Size::Percent(1.0))
.padding(18.0)
.gap(14.0)
.corner_radius(10.0)
.bg_color(bg_card)
.border(1.0, border_card)
.box_shadow(BoxShadow::new(rgba!(0, 0, 0, 10)).blur(6.0).offset(0.0, 2.0)),
);
let left_column = column((buttons_card, overlay_card, selection_card))
.style(Style::new().width(Size::Percent(0.5)).gap(16.0));
let right_column = column((progress_card, tag_cloud_card, inputs_card, canvas_card))
.style(Style::new().width(Size::Percent(0.5)).gap(16.0));
let header_banner = row((
column((
text("MTK Comprehensive Native Widget Gallery").style(Style::new().set_text_style(
TextStyle {
font_size: 24.0,
font_weight: FontWeight::EXTRA_BOLD,
color: text_primary,
..Default::default()
},
)),
text("Showcasing multi-layer interactive surfaces, modal overlays, and next-gen controls.")
.style(Style::new().set_text_style(TextStyle {
font_size: 14.0,
color: text_secondary,
..Default::default()
})),
))
.style(Style::new().gap(4.0).flex_grow(1.0)),
badge(&state.status_message).info(),
))
.style(
Style::new()
.width(Size::Percent(1.0))
.align_items(AlignItems::Center)
.justify_content(JustifyContent::SpaceBetween)
.padding_xy(20.0, 16.0)
.corner_radius(10.0)
.bg_color(bg_card)
.border(1.0, border_card)
.box_shadow(BoxShadow::new(rgba!(0, 0, 0, 10)).blur(6.0).offset(0.0, 2.0))
.transition_all(200.0, Curve::ease_out()),
);
let content_grid = row((left_column, right_column)).style(
Style::new()
.width(Size::Percent(1.0))
.gap(16.0)
.align_items(AlignItems::Start),
);
let scrollable_content = scroll_view(
column((header_banner, content_grid)).style(
Style::new()
.width(Size::Percent(1.0))
.padding(20.0)
.gap(16.0),
),
)
.style(
Style::new()
.width(Size::Percent(1.0))
.height(Size::Percent(1.0)),
);
let main_scaffold = column((scrollable_content,)).style(
Style::new()
.width(Size::Percent(1.0))
.height(Size::Percent(1.0))
.bg_color(if dark {
rgb!(15, 23, 42)
} else {
rgb!(248, 250, 252)
})
.transition_all(200.0, Curve::ease_out()),
);
let player_sheet = column((
row((
badge("NOW PLAYING").info(),
spacer(),
button("✕ Close")
.secondary()
.on_click(GalleryMsg::OpenPlayer(false)),
))
.style(
Style::new()
.width(Size::Percent(1.0))
.align_items(AlignItems::Center),
),
divider().color(border_card),
spacer(),
column((
column((spacer(),)).style(
Style::new()
.width(Size::Fixed(240))
.height(Size::Fixed(240))
.corner_radius(16.0)
.bg_color(rgb!(99, 102, 241))
.box_shadow(BoxShadow::new(rgba!(99, 102, 241, 120)).blur(32.0)),
),
column((
text("Synthesis & Serenade").style(Style::new().set_text_style(TextStyle {
font_size: 26.0,
font_weight: FontWeight::BOLD,
color: text_primary,
..Default::default()
})),
text("The Rustacean Symphony • 2026").style(Style::new().set_text_style(
TextStyle {
font_size: 15.0,
color: text_secondary,
..Default::default()
},
)),
progress_bar(0.45).fill_color(rgb!(99, 102, 241)),
row((
text("1:42").style(Style::new().set_text_style(TextStyle {
font_size: 13.0,
color: text_secondary,
..Default::default()
})),
spacer(),
text("3:48").style(Style::new().set_text_style(TextStyle {
font_size: 13.0,
color: text_secondary,
..Default::default()
})),
))
.style(Style::new().width(Size::Percent(1.0))),
row((
button("⏮ Previous").secondary(),
button("⏸ Pause"),
button("⏭ Next").secondary(),
))
.style(Style::new().gap(12.0).align_items(AlignItems::Center)),
))
.style(
Style::new()
.gap(12.0)
.width(Size::Fixed(440))
.align_items(AlignItems::Center),
),
))
.style(
Style::new()
.gap(24.0)
.align_items(AlignItems::Center)
.justify_content(JustifyContent::Center)
.width(Size::Percent(1.0)),
),
spacer(),
))
.style(
Style::new()
.width(Size::Percent(1.0))
.height(Size::Percent(1.0))
.padding(32.0)
.gap(18.0)
.bg_color(if dark {
rgb!(15, 23, 42)
} else {
rgb!(248, 250, 252)
}),
);
let modal_dialog = column((
card_header(
"Confirm Action",
"Native modal dialog rendered on a dedicated top-level layer.",
dark,
),
text("Modals isolate keyboard focus, dim background surfaces, and dismiss on Escape or backdrop click.")
.style(Style::new().width(Size::Fill).set_text_style(TextStyle {
font_size: 14.0,
color: text_secondary,
wrap: true,
..Default::default()
})),
divider().color(border_card),
row((
button("Cancel")
.secondary()
.on_click(GalleryMsg::OpenModal(false)),
spacer(),
button("Confirm & Close").on_click(GalleryMsg::OpenModal(false)),
))
.style(Style::new().align_items(AlignItems::Center).gap(5.)),
))
.style(
Style::new()
.width(Size::Fixed(440))
.padding(24.0)
.gap(16.0)
.corner_radius(12.0)
.bg_color(bg_card)
.border(1.0, border_card)
.box_shadow(BoxShadow::new(rgba!(0, 0, 0, 80)).blur(28.0).offset(0.0, 8.0)),
);
main_scaffold
.sheet(state.is_player_open, player_sheet)
.on_dismiss(|| GalleryMsg::OpenPlayer(false))
.modal(state.is_modal_open, modal_dialog)
.on_close(|| GalleryMsg::OpenModal(false))
}
fn main() {
let initial_state = GalleryState {
counter: 0,
checkbox_notifications: true,
checkbox_analytics: false,
switch_dark_mode: false,
switch_auto_save: true,
slider_volume: 75.0,
slider_brightness: 50.0,
username_input: "alex_developer".to_string(),
bio_textarea: "Building high performance native user interfaces with MTK!".to_string(),
status_message: "Ready".to_string(),
selected_framework: 0,
radio_frequency: 1,
is_modal_open: false,
is_player_open: false,
tags: vec![
"Rust".into(),
"WGPU".into(),
"Muse Layout".into(),
"Parley Text".into(),
"Flexbox Wrap".into(),
"Layer Surfaces".into(),
"Cross Platform".into(),
"Zero Garbage".into(),
],
};
#[cfg(feature = "debugger")]
let mut window = Window::with(initial_state, update, app);
#[cfg(not(feature = "debugger"))]
let window = Window::with(initial_state, update, app);
#[cfg(feature = "debugger")]
window.enable_terminal_debugger();
window.present_with(
WindowAttributes::default()
.with_title("MTK - Comprehensive Native Widget Gallery")
.with_size(WindowDimension {
width: 1140,
height: 880,
}),
);
}