97 lines
3 KiB
Rust
97 lines
3 KiB
Rust
use crate::{Primitive, Renderer};
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use iced_native::{slider, Background, Color, MouseCursor, Point, Rectangle};
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const HANDLE_WIDTH: f32 = 8.0;
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const HANDLE_HEIGHT: f32 = 22.0;
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impl slider::Renderer for Renderer {
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fn height(&self) -> u32 {
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30
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}
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fn draw(
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&mut self,
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bounds: Rectangle,
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cursor_position: Point,
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range: std::ops::RangeInclusive<f32>,
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value: f32,
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is_dragging: bool,
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) -> Self::Output {
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let is_mouse_over = bounds.contains(cursor_position);
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let rail_y = bounds.y + (bounds.height / 2.0).round();
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let (rail_top, rail_bottom) = (
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Primitive::Quad {
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bounds: Rectangle {
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x: bounds.x,
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y: rail_y,
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width: bounds.width,
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height: 2.0,
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},
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background: Background::Color([0.6, 0.6, 0.6].into()),
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border_radius: 0,
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},
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Primitive::Quad {
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bounds: Rectangle {
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x: bounds.x,
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y: rail_y + 2.0,
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width: bounds.width,
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height: 2.0,
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},
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background: Background::Color(Color::WHITE),
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border_radius: 0,
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},
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);
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let (range_start, range_end) = range.into_inner();
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let handle_offset = (bounds.width - HANDLE_WIDTH)
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* ((value - range_start) / (range_end - range_start).max(1.0));
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let (handle_border, handle) = (
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Primitive::Quad {
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bounds: Rectangle {
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x: bounds.x + handle_offset.round() - 1.0,
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y: rail_y - HANDLE_HEIGHT / 2.0 - 1.0,
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width: HANDLE_WIDTH + 2.0,
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height: HANDLE_HEIGHT + 2.0,
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},
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background: Background::Color([0.6, 0.6, 0.6].into()),
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border_radius: 5,
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},
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Primitive::Quad {
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bounds: Rectangle {
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x: bounds.x + handle_offset.round(),
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y: rail_y - HANDLE_HEIGHT / 2.0,
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width: HANDLE_WIDTH,
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height: HANDLE_HEIGHT,
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},
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background: Background::Color(
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if is_dragging {
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[0.85, 0.85, 0.85]
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} else if is_mouse_over {
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[0.90, 0.90, 0.90]
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} else {
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[0.95, 0.95, 0.95]
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}
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.into(),
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),
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border_radius: 4,
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},
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);
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(
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Primitive::Group {
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primitives: vec![rail_top, rail_bottom, handle_border, handle],
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},
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if is_dragging {
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MouseCursor::Grabbing
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} else if is_mouse_over {
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MouseCursor::Grab
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} else {
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MouseCursor::OutOfBounds
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},
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)
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}
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}
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