diff options
Diffstat (limited to 'src/library/font.rs')
| -rw-r--r-- | src/library/font.rs | 200 |
1 files changed, 0 insertions, 200 deletions
diff --git a/src/library/font.rs b/src/library/font.rs deleted file mode 100644 index 3f816c6d..00000000 --- a/src/library/font.rs +++ /dev/null @@ -1,200 +0,0 @@ -use crate::font::{FontStretch, FontStyle, FontWeight}; -use crate::layout::Fill; - -use super::*; - -/// `font`: Configure the font. -/// -/// # Positional parameters -/// - Body: optional, of type `template`. -/// -/// # Named parameters -/// - Font size: `size`, of type `linear` relative to current font size. -/// - Font families: `family`, `font-family`, `string` or `array`. -/// - Font Style: `style`, of type `font-style`. -/// - Font Weight: `weight`, of type `font-weight`. -/// - Font Stretch: `stretch`, of type `relative`, between 0.5 and 2.0. -/// - Top edge of the font: `top-edge`, of type `vertical-font-metric`. -/// - Bottom edge of the font: `bottom-edge`, of type `vertical-font-metric`. -/// - Color the glyphs: `color`, of type `color`. -/// - Serif family definition: `serif`, of type `family-def`. -/// - Sans-serif family definition: `sans-serif`, of type `family-def`. -/// - Monospace family definition: `monospace`, of type `family-def`. -/// -/// # Return value -/// A template that configures font properties. The effect is scoped to the body -/// if present. -/// -/// # Relevant types and constants -/// - Type `font-family` -/// - `serif` -/// - `sans-serif` -/// - `monospace` -/// - coerces from `string` -/// - Type `family-def` -/// - coerces from `string` -/// - coerces from `array` of `string` -/// - Type `font-style` -/// - `normal` -/// - `italic` -/// - `oblique` -/// - Type `font-weight` -/// - `regular` (400) -/// - `bold` (700) -/// - coerces from `integer`, between 100 and 900 -/// - Type `vertical-font-metric` -/// - `ascender` -/// - `cap-height` -/// - `x-height` -/// - `baseline` -/// - `descender` -pub fn font(ctx: &mut EvalContext, args: &mut FuncArgs) -> Value { - let list = args.named(ctx, "family"); - let size = args.named::<Linear>(ctx, "size"); - let style = args.named(ctx, "style"); - let weight = args.named(ctx, "weight"); - let stretch = args.named(ctx, "stretch"); - let top_edge = args.named(ctx, "top-edge"); - let bottom_edge = args.named(ctx, "bottom-edge"); - let color = args.named(ctx, "color"); - let serif = args.named(ctx, "serif"); - let sans_serif = args.named(ctx, "sans-serif"); - let monospace = args.named(ctx, "monospace"); - let body = args.eat::<TemplateValue>(ctx); - - Value::template("font", move |ctx| { - let snapshot = ctx.state.clone(); - let font = ctx.state.font_mut(); - - if let Some(linear) = size { - font.size = linear.resolve(font.size); - } - - if let Some(FontDef(list)) = &list { - font.families_mut().list = list.clone(); - } - - if let Some(style) = style { - font.variant.style = style; - } - - if let Some(weight) = weight { - font.variant.weight = weight; - } - - if let Some(stretch) = stretch { - font.variant.stretch = stretch; - } - - if let Some(top_edge) = top_edge { - font.top_edge = top_edge; - } - - if let Some(bottom_edge) = bottom_edge { - font.bottom_edge = bottom_edge; - } - - if let Some(color) = color { - font.fill = Fill::Color(color); - } - - if let Some(FamilyDef(serif)) = &serif { - font.families_mut().serif = serif.clone(); - } - - if let Some(FamilyDef(sans_serif)) = &sans_serif { - font.families_mut().sans_serif = sans_serif.clone(); - } - - if let Some(FamilyDef(monospace)) = &monospace { - font.families_mut().monospace = monospace.clone(); - } - - if let Some(body) = &body { - body.exec(ctx); - ctx.state = snapshot; - } - }) -} - -#[derive(Debug)] -struct FontDef(Vec<FontFamily>); - -castable! { - FontDef: "font family or array of font families", - Value::Str(string) => Self(vec![FontFamily::Named(string.to_lowercase())]), - Value::Array(values) => Self(values - .into_iter() - .filter_map(|v| v.cast().ok()) - .collect() - ), - #(family: FontFamily) => Self(vec![family]), -} - -#[derive(Debug)] -struct FamilyDef(Vec<String>); - -castable! { - FamilyDef: "string or array of strings", - Value::Str(string) => Self(vec![string.to_lowercase()]), - Value::Array(values) => Self(values - .into_iter() - .filter_map(|v| v.cast().ok()) - .map(|string: String| string.to_lowercase()) - .collect() - ), -} - -castable! { - FontFamily: "font family", - Value::Str(string) => Self::Named(string.to_lowercase()) -} - -castable! { - FontStyle: "font style", -} - -castable! { - FontWeight: "font weight", - Value::Int(number) => { - let [min, max] = [Self::THIN, Self::BLACK]; - let message = || format!( - "should be between {} and {}", - min.to_number(), - max.to_number(), - ); - - return if number < i64::from(min.to_number()) { - CastResult::Warn(min, message()) - } else if number > i64::from(max.to_number()) { - CastResult::Warn(max, message()) - } else { - CastResult::Ok(Self::from_number(number as u16)) - }; - }, -} - -castable! { - FontStretch: "font stretch", - Value::Relative(relative) => { - let [min, max] = [Self::ULTRA_CONDENSED, Self::ULTRA_EXPANDED]; - let message = || format!( - "should be between {} and {}", - Relative::new(min.to_ratio() as f64), - Relative::new(max.to_ratio() as f64), - ); - - let ratio = relative.get() as f32; - let value = Self::from_ratio(ratio); - - return if ratio < min.to_ratio() || ratio > max.to_ratio() { - CastResult::Warn(value, message()) - } else { - CastResult::Ok(value) - }; - }, -} - -castable! { - VerticalFontMetric: "vertical font metric", -} |