azul-core 0.0.8

Common datatypes used for the Azul document object model, shared across all azul-* crates
Documentation 
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//! Small geometry types used by the layout solver and text shaping pipeline.
//!
//! Default font / text constants live in [`azul_css::defaults`].

use crate::geom::{LogicalPosition, LogicalSize};

/// Resolved top/right/bottom/left offsets in logical pixels (used for
/// margins, padding, and borders after CSS resolution).
#[derive(Debug, Default, Copy, Clone, PartialEq, PartialOrd)]
#[repr(C)]
pub struct ResolvedOffsets {
    pub top: f32,
    pub left: f32,
    pub right: f32,
    pub bottom: f32,
}

impl ResolvedOffsets {
    pub const fn zero() -> Self {
        Self {
            top: 0.0,
            left: 0.0,
            right: 0.0,
            bottom: 0.0,
        }
    }
    #[must_use]
    pub fn total_vertical(&self) -> f32 {
        self.top + self.bottom
    }
    #[must_use]
    pub fn total_horizontal(&self) -> f32 {
        self.left + self.right
    }
}

/// Index into a font's glyph table.
type GlyphIndex = u32;

/// A single positioned glyph with its index, screen position, and size.
#[derive(Debug, Default, Copy, Clone, PartialEq, PartialOrd)]
pub struct GlyphInstance {
    pub index: GlyphIndex,
    pub point: LogicalPosition,
    pub size: LogicalSize,
}

impl GlyphInstance {
    pub fn scale_for_dpi(&mut self, scale_factor: f32) {
        self.point.scale_for_dpi(scale_factor);
        self.size.scale_for_dpi(scale_factor);
    }
}