313 lines
10 KiB
Rust
313 lines
10 KiB
Rust
//! 用统一主题绘制宿主管理控件，并同步注册交互目标。
|
|
//! 每个控件的图形、角色、启用状态和 action 一起登记，绘制几何与命中几何保持一致。
|
|
//!
|
|
use super::{
|
|
Axis, Interaction, Role, Target, VisualState, WidgetId,
|
|
theme::{self, Theme},
|
|
};
|
|
use crate::{
|
|
display_list::{Color, DisplayList, DrawCommand},
|
|
geometry::{Point, Rect},
|
|
text::{self, TextStyle},
|
|
};
|
|
use std::hash::Hash;
|
|
|
|
/// 一次按钮绘制的借用描述，包括显示、角色和启用/选中状态。
|
|
pub struct Button<'a> {
|
|
pub label: &'a str,
|
|
pub selected: bool,
|
|
pub enabled: bool,
|
|
pub role: Role,
|
|
}
|
|
impl<'a> Button<'a> {
|
|
/// 构造本类型并初始化其状态；资源建立和默认字段以函数体为准。
|
|
pub fn new(label: &'a str) -> Self {
|
|
Self {
|
|
label,
|
|
selected: false,
|
|
enabled: true,
|
|
role: Role::Button,
|
|
}
|
|
}
|
|
/// 设置当前控件描述的选择、启用或角色信息，供后续绘制和目标登记使用。
|
|
pub fn selected(mut self, value: bool) -> Self {
|
|
self.selected = value;
|
|
self
|
|
}
|
|
/// 设置当前控件描述的选择、启用或角色信息，供后续绘制和目标登记使用。
|
|
pub fn enabled(mut self, value: bool) -> Self {
|
|
self.enabled = value;
|
|
self
|
|
}
|
|
/// 设置当前控件描述的选择、启用或角色信息，供后续绘制和目标登记使用。
|
|
pub fn role(mut self, value: Role) -> Self {
|
|
self.role = value;
|
|
self
|
|
}
|
|
}
|
|
|
|
/// 本帧宿主控件绘制上下文，共同拥有显示列表与交互目标登记入口。
|
|
pub struct Ui<A> {
|
|
pub list: DisplayList,
|
|
pub targets: Vec<Target<A>>,
|
|
pub theme: Theme,
|
|
interaction: Interaction,
|
|
}
|
|
impl<A: Hash> Ui<A> {
|
|
/// 构造本类型并初始化其状态；资源建立和默认字段以函数体为准。
|
|
pub fn new(theme: Theme, interaction: Interaction) -> Self {
|
|
Self {
|
|
list: DisplayList::default(),
|
|
targets: Vec::new(),
|
|
theme,
|
|
interaction,
|
|
}
|
|
}
|
|
/// 使用当前主题绘制控件填充、轮廓或文字原语。
|
|
pub fn fill(&mut self, r: Rect, color: Color) {
|
|
self.list.push(DrawCommand::FillRoundedRect {
|
|
rect: r,
|
|
radius: 0.0,
|
|
color,
|
|
});
|
|
}
|
|
/// 使用当前主题绘制控件填充、轮廓或文字原语。
|
|
fn outline(&mut self, r: Rect, color: Color, width: f32) {
|
|
self.list.push(DrawCommand::StrokeRoundedRect {
|
|
rect: Rect::new(
|
|
r.x + width / 2.0,
|
|
r.y + width / 2.0,
|
|
(r.width - width).max(0.0),
|
|
(r.height - width).max(0.0),
|
|
),
|
|
radius: 3.0,
|
|
width,
|
|
color,
|
|
});
|
|
}
|
|
/// 使用当前主题绘制控件填充、轮廓或文字原语。
|
|
pub fn label(&mut self, x: f32, y: f32, value: &str, color: Color, code: bool) {
|
|
self.list.push(DrawCommand::Text {
|
|
origin: Point::new(x, y),
|
|
value: value.into(),
|
|
style: if code {
|
|
TextStyle::code()
|
|
} else {
|
|
TextStyle {
|
|
font_size: 12.0,
|
|
line_height: 18.0,
|
|
..TextStyle::ui(1)
|
|
}
|
|
},
|
|
color,
|
|
});
|
|
}
|
|
/// 把控件身份、几何、角色、启用状态和 action 一起加入本帧交互目标。
|
|
fn register(
|
|
&mut self,
|
|
id: WidgetId,
|
|
rect: Rect,
|
|
role: Role,
|
|
action: Option<A>,
|
|
selected: bool,
|
|
enabled: bool,
|
|
) -> VisualState {
|
|
let response = self.interaction.visual(id, selected, enabled);
|
|
self.targets.push(Target {
|
|
id,
|
|
rect,
|
|
role,
|
|
enabled,
|
|
action,
|
|
});
|
|
response
|
|
}
|
|
/// 绘制对应宿主管理控件，并使用同一矩形注册命中/捕获所需的交互信息。
|
|
fn surface(&mut self, rect: Rect, s: VisualState, base: Option<Color>) {
|
|
let color = if !s.enabled {
|
|
base
|
|
} else if s.pressed {
|
|
Some(self.theme.pressed())
|
|
} else if s.hovered {
|
|
Some(self.theme.hover())
|
|
} else if s.selected {
|
|
Some(self.theme.soft())
|
|
} else {
|
|
base
|
|
};
|
|
if let Some(color) = color {
|
|
self.fill(rect, color);
|
|
}
|
|
if s.focused {
|
|
self.outline(rect, self.theme.accent, 1.5);
|
|
}
|
|
}
|
|
/// 绘制对应宿主管理控件，并使用同一矩形注册命中/捕获所需的交互信息。
|
|
pub fn button(&mut self, rect: Rect, action: A, button: Button<'_>) -> VisualState {
|
|
let id = WidgetId::new(&action);
|
|
let s = self.register(
|
|
id,
|
|
rect,
|
|
button.role,
|
|
Some(action),
|
|
button.selected,
|
|
button.enabled,
|
|
);
|
|
self.surface(rect, s, None);
|
|
self.list.push(DrawCommand::PushClip(rect));
|
|
let label = text::fit(
|
|
button.label,
|
|
(rect.width - 16.0).max(0.0),
|
|
TextStyle {
|
|
font_size: 12.0,
|
|
line_height: 18.0,
|
|
..TextStyle::ui(1)
|
|
},
|
|
);
|
|
self.label(
|
|
rect.x + 8.0,
|
|
rect.y + (rect.height - 18.0) / 2.0,
|
|
&label,
|
|
if s.enabled {
|
|
theme::TEXT
|
|
} else {
|
|
Color::rgb(151, 160, 172)
|
|
},
|
|
false,
|
|
);
|
|
if s.selected && button.role == Role::Tab {
|
|
self.fill(
|
|
Rect::new(rect.x, rect.y + rect.height - 2.0, rect.width, 2.0),
|
|
self.theme.accent,
|
|
);
|
|
}
|
|
self.list.push(DrawCommand::PopClip);
|
|
s
|
|
}
|
|
/// 绘制对应宿主管理控件，并使用同一矩形注册命中/捕获所需的交互信息。
|
|
pub fn text_field(&mut self, rect: Rect, action: A, focused: bool) {
|
|
let s = self.register(
|
|
WidgetId::new(&action),
|
|
rect,
|
|
Role::TextField,
|
|
Some(action),
|
|
false,
|
|
true,
|
|
);
|
|
self.surface(rect, s, Some(theme::BG));
|
|
self.outline(
|
|
rect,
|
|
if focused || s.focused {
|
|
self.theme.accent
|
|
} else if s.hovered {
|
|
theme::MUTED
|
|
} else {
|
|
theme::BORDER
|
|
},
|
|
if focused || s.focused { 1.5 } else { 1.0 },
|
|
);
|
|
}
|
|
/// A terminal prompt shares its surface with output; its caret is the focus cue.
|
|
/// 绘制对应宿主管理控件，并使用同一矩形注册命中/捕获所需的交互信息。
|
|
pub fn inline_input(&mut self, rect: Rect, action: A) {
|
|
self.register(
|
|
WidgetId::new(&action),
|
|
rect,
|
|
Role::TextField,
|
|
Some(action),
|
|
false,
|
|
true,
|
|
);
|
|
}
|
|
/// 绘制对应宿主管理控件，并使用同一矩形注册命中/捕获所需的交互信息。
|
|
pub fn row(&mut self, paint: Rect, hit: Rect, action: A, selected: bool) {
|
|
let s = self.register(
|
|
WidgetId::new(&action),
|
|
hit,
|
|
Role::Row,
|
|
Some(action),
|
|
selected,
|
|
true,
|
|
);
|
|
self.surface(paint, s, None);
|
|
}
|
|
/// 绘制对应宿主管理控件，并使用同一矩形注册命中/捕获所需的交互信息。
|
|
pub fn swatch(&mut self, rect: Rect, action: A, color: Color, selected: bool) {
|
|
let s = self.register(
|
|
WidgetId::new(&action),
|
|
rect,
|
|
Role::Swatch,
|
|
Some(action),
|
|
selected,
|
|
true,
|
|
);
|
|
self.fill(
|
|
rect,
|
|
if s.pressed {
|
|
theme::mix(color, theme::TEXT, 0.2)
|
|
} else {
|
|
color
|
|
},
|
|
);
|
|
if s.hovered || s.focused || selected {
|
|
self.outline(
|
|
Rect::new(
|
|
rect.x - 3.0,
|
|
rect.y - 3.0,
|
|
rect.width + 6.0,
|
|
rect.height + 6.0,
|
|
),
|
|
if s.focused {
|
|
self.theme.accent
|
|
} else {
|
|
theme::TEXT
|
|
},
|
|
if s.pressed { 3.0 } else { 1.5 },
|
|
);
|
|
}
|
|
if selected {
|
|
self.label(rect.x + 10.0, rect.y + 6.0, "✓", theme::BG, false);
|
|
}
|
|
}
|
|
/// 绘制对应宿主管理控件，并使用同一矩形注册命中/捕获所需的交互信息。
|
|
pub fn splitter(&mut self, rect: Rect, id: WidgetId, axis: Axis) {
|
|
let hit = Rect::new(
|
|
rect.x - 3.0,
|
|
rect.y - 3.0,
|
|
rect.width + 6.0,
|
|
rect.height + 6.0,
|
|
);
|
|
let mut s = self.register(id, hit, Role::Splitter(axis), None, false, true);
|
|
s.pressed |= self.interaction.captured(id);
|
|
let color = if s.pressed || s.hovered {
|
|
self.theme.accent
|
|
} else {
|
|
theme::BORDER
|
|
};
|
|
let line = if s.hovered || s.pressed {
|
|
match axis {
|
|
Axis::Horizontal => Rect::new(rect.x - 1.0, rect.y, 3.0, rect.height),
|
|
Axis::Vertical => Rect::new(rect.x, rect.y - 1.0, rect.width, 3.0),
|
|
}
|
|
} else {
|
|
rect
|
|
};
|
|
self.fill(line, color);
|
|
}
|
|
/// 绘制对应宿主管理控件，并使用同一矩形注册命中/捕获所需的交互信息。
|
|
pub fn scrollbar(&mut self, rect: Rect, id: WidgetId, axis: Axis) {
|
|
let mut s = self.register(id, rect, Role::Scrollbar(axis), None, false, true);
|
|
s.pressed |= self.interaction.captured(id);
|
|
self.fill(
|
|
rect,
|
|
if s.pressed {
|
|
self.theme.accent
|
|
} else if s.hovered {
|
|
theme::mix(theme::MUTED, self.theme.accent, 0.55)
|
|
} else {
|
|
Color::rgb(161, 173, 190)
|
|
},
|
|
);
|
|
}
|
|
}
|