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102 lines
3.9 KiB
Rust
102 lines
3.9 KiB
Rust
use super::{Bounds2, Builder, Color, Ctx, Drawing, Ink, Rgb, ink};
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/// The text style of an entity (Standard defaults when missing).
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pub(crate) fn text_style(d: &Drawing, name: &str) -> cadcraft_doc::TextStyle {
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d.text_style(name).cloned().unwrap_or_default()
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}
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/// The font a text style draws with: its font file (TrueType, or an SHX font found by name),
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/// its big font and its vertical flag.
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pub fn style_font(ts: &cadcraft_doc::TextStyle) -> cadcraft_fonts::TextFont {
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cadcraft_fonts::TextFont::resolve_style(&ts.font, &ts.big_font, ts.vertical)
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}
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/// Shape a TEXT / ATTRIB / ATTDEF with its style's font and generation flags.
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pub fn place_text_entity(d: &Drawing, t: &cadcraft_doc::Text, value: &str) -> (cadcraft_fonts::Shaped, Bounds2) {
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let ts = text_style(d, &t.style);
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let font = style_font(&ts);
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let (h, v) = align(t.halign, t.valign);
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let p = cadcraft_fonts::TextParams {
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insert: t.insert.xy(),
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align_pt: t.align_pt.map(|p| p.xy()),
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height: t.height,
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rotation: t.rotation,
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width_factor: t.width_factor,
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oblique: t.oblique,
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h,
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v,
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backwards: ts.backwards,
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upside_down: ts.upside_down,
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};
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cadcraft_fonts::place(&font, value, &p)
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}
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/// Lay out an MTEXT with its style's font.
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pub fn layout_mtext_entity(d: &Drawing, t: &cadcraft_doc::MText) -> cadcraft_fonts::MTextLayout {
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let ts = text_style(d, &t.style);
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let params = cadcraft_fonts::MTextParams {
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insert: t.insert.xy(),
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height: t.height,
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width: t.width,
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attach: t.attach,
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rotation: t.rotation,
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line_spacing: t.line_spacing,
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line_spacing_exact: t.line_spacing_exact,
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font: style_font(&ts),
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width_factor: ts.width_factor,
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oblique: ts.oblique,
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columns: t.columns.as_ref().map(|c| cadcraft_fonts::MTextColumnSpec {
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dynamic: c.kind == cadcraft_doc::MTextColumnType::Dynamic,
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count: usize::from(c.count.max(1)),
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gutter: c.gutter,
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height: c.height,
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heights: if c.kind == cadcraft_doc::MTextColumnType::Dynamic && !c.auto_height { c.heights.clone() } else { Vec::new() },
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reversed: c.flow_reversed,
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}),
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};
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cadcraft_fonts::layout_mtext_with(&t.contents, ¶ms)
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}
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fn mtext_color(c: Option<cadcraft_fonts::MTextColor>, rgb: Ink) -> Ink {
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match c {
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Some(cadcraft_fonts::MTextColor::Aci(i)) => {
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u8::try_from(i).ok().filter(|i| *i > 0).map(|i| ink(Color::Index(i), Color::Index(7), Color::Index(7))).unwrap_or(rgb)
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}
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Some(cadcraft_fonts::MTextColor::Rgb(v)) => {
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Ink { rgb: Rgb(((v >> 16) & 0xFF) as u8, ((v >> 8) & 0xFF) as u8, (v & 0xFF) as u8), aci7: false, aci: 0 }
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}
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None => rgb,
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}
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}
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pub(crate) fn mtext(b: &mut Builder, ctx: &Ctx, t: &cadcraft_doc::MText, rgb: Ink, lw: f32) {
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let l = layout_mtext_entity(ctx.d, t);
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for p in &l.pieces {
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b.shaped(ctx, mtext_color(p.color, rgb), lw, &p.shaped);
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}
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}
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/// A TEXT's justification as the fonts' alignment (used where text is placed outside a build).
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pub fn text_align(h: cadcraft_doc::HAlign, v: cadcraft_doc::VAlign) -> (cadcraft_fonts::Align, cadcraft_fonts::VAlign) {
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align(h, v)
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}
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fn align(h: cadcraft_doc::HAlign, v: cadcraft_doc::VAlign) -> (cadcraft_fonts::Align, cadcraft_fonts::VAlign) {
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use cadcraft_fonts::{Align as A, VAlign as V};
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let ha = match h {
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cadcraft_doc::HAlign::Left => A::Left,
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cadcraft_doc::HAlign::Center => A::Center,
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cadcraft_doc::HAlign::Right => A::Right,
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cadcraft_doc::HAlign::Aligned => A::Aligned,
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cadcraft_doc::HAlign::Middle => A::Middle,
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cadcraft_doc::HAlign::Fit => A::Fit,
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};
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let va = match v {
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cadcraft_doc::VAlign::Baseline => V::Baseline,
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cadcraft_doc::VAlign::Bottom => V::Bottom,
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cadcraft_doc::VAlign::Middle => V::Middle,
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cadcraft_doc::VAlign::Top => V::Top,
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};
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(ha, va)
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}
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