egui-charts 0.2.0

High-performance financial charting engine for egui — candlesticks, 95 drawing tools, 130+ indicators, and a full design-token theme system
Documentation 
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//! Separator component for visual dividers in the toolbar.

use crate::theming;
use crate::tokens::DESIGN_TOKENS;
use egui::{Rect, Sense, Ui, Vec2};

/// Draw a horizontal separator line.
///
/// Creates a thin horizontal line to visually separate toolbar sections.
/// Uses theme-aware coloring.
///
/// # Arguments
///
/// * `ui` - The egui UI context
/// * `width` - Total width of the separator area
pub fn draw_separator(ui: &mut Ui, width: f32) {
    let separator_height = 1.0;
    let (rect, _) = ui.allocate_exact_size(Vec2::new(width, separator_height), Sense::hover());
    ui.painter()
        .rect_filled(rect, 0.0, theming::separator_color(ui));
}

/// Draw a separator with horizontal margins.
///
/// Same as `draw_separator` but with configurable left/right margins.
///
/// # Arguments
///
/// * `ui` - The egui UI context
/// * `width` - Total width of the separator area
/// * `margin` - Horizontal margin on each side
pub fn draw_separator_with_margin(ui: &mut Ui, width: f32, margin: f32) {
    let sep_rect = Rect::from_min_size(
        ui.cursor().min + Vec2::new(margin, 0.0),
        Vec2::new(width - margin * 2.0, 1.0),
    );
    ui.painter()
        .rect_filled(sep_rect, 0.0, theming::separator_color(ui));
    ui.add_space(DESIGN_TOKENS.spacing.hairline);
}

/// Draw a styled separator for the drawing toolbar.
///
/// Creates a thin separator line with proper margins and gaps above/below.
/// Uses exact dimensions: 1px height, 36px wide (52-16 margins).
///
/// # Arguments
///
/// * `ui` - The egui UI context
/// * `toolbar_width` - Total width of the toolbar (e.g., 52px)
pub fn draw_separator_styled(ui: &mut Ui, toolbar_width: f32) {
    let margin = DESIGN_TOKENS.sizing.toolbar.separator_margin;
    let gap = DESIGN_TOKENS.sizing.toolbar.separator_gap;

    // Add gap above
    ui.add_space(gap);

    // Draw 1px separator with margins
    let sep_width = toolbar_width - margin * 2.0;
    let sep_rect = Rect::from_min_size(
        ui.cursor().min + Vec2::new(margin, 0.0),
        Vec2::new(sep_width, 1.0),
    );
    ui.painter()
        .rect_filled(sep_rect, 0.0, theming::separator_color(ui));

    // Allocate space for the separator line
    ui.add_space(1.0);

    // Add gap below
    ui.add_space(gap);
}