Garmelon/showbits
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Add FontStuff

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This commit is contained in:
Joscha 2024-03-08 16:47:47 +01:00
parent c8c0759015
commit 13ed6ef3e3
1 changed files with 37 additions and 9 deletions
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46
showbits-common/src/widgets/text.rs
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@ -17,8 +17,28 @@ fn color_to_srgb(color: Color) -> Srgb {
Srgb::new(r, g, b).into_format()
}
pub struct FontStuff {
font_system: FontSystem,
swash_cache: SwashCache,
}
impl FontStuff {
pub fn new() -> Self {
Self {
font_system: FontSystem::new(),
swash_cache: SwashCache::new(),
}
}
}
impl Default for FontStuff {
fn default() -> Self {
Self::new()
}
}
pub trait HasFontStuff {
fn font_system_and_swash_cache_mut(&mut self) -> (&mut FontSystem, &mut SwashCache);
fn font_stuff(&mut self) -> &mut FontStuff;
}
pub struct Text {
@ -34,14 +54,16 @@ impl Text {
const SHAPING: Shaping = Shaping::Advanced;
pub fn simple(
font_system: &mut FontSystem,
font_stuff: &mut FontStuff,
metrics: Metrics,
attrs: Attrs<'_>,
text: &str,
) -> Self {
let fs = &mut font_stuff.font_system;
let mut buffer = Buffer::new_empty(metrics);
buffer.set_size(font_system, f32::INFINITY, f32::INFINITY);
buffer.set_text(font_system, text, attrs, Self::SHAPING);
buffer.set_size(fs, f32::INFINITY, f32::INFINITY);
buffer.set_text(fs, text, attrs, Self::SHAPING);
Self {
buffer,
@ -50,7 +72,7 @@ impl Text {
}
pub fn rich<'r, 's, I>(
font_system: &mut FontSystem,
font_stuff: &mut FontStuff,
metrics: Metrics,
default_attrs: Attrs<'_>,
spans: I,
@ -58,9 +80,11 @@ impl Text {
where
I: IntoIterator<Item = (&'s str, Attrs<'r>)>,
{
let fs = &mut font_stuff.font_system;
let mut buffer = Buffer::new_empty(metrics);
buffer.set_size(font_system, f32::INFINITY, f32::INFINITY);
buffer.set_rich_text(font_system, spans, default_attrs, Self::SHAPING);
buffer.set_size(fs, f32::INFINITY, f32::INFINITY);
buffer.set_rich_text(fs, spans, default_attrs, Self::SHAPING);
Self {
buffer,
@ -87,7 +111,7 @@ impl<C: HasFontStuff> Widget<C> for Text {
AvailableSpace::MaxContent => f32::INFINITY,
});
let (fs, _) = ctx.font_system_and_swash_cache_mut();
let fs = &mut ctx.font_stuff().font_system;
self.buffer.set_size(fs, width, f32::INFINITY);
self.buffer.shape_until_scroll(fs, false);
@ -104,7 +128,11 @@ impl<C: HasFontStuff> Widget<C> for Text {
fn draw_below(&mut self, ctx: &mut C, view: &mut View<'_>) -> anyhow::Result<()> {
let size = view.size();
let (fs, sc) = ctx.font_system_and_swash_cache_mut();
let FontStuff {
font_system: fs,
swash_cache: sc,
} = ctx.font_stuff();
self.buffer.set_size(fs, size.x as f32, size.y as f32);
self.buffer.shape_until_scroll(fs, true);