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Render example text in example via Line::paint
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parent
765c3f9c18
commit
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1 changed files with 42 additions and 36 deletions
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@ -1,11 +1,10 @@
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use gpui::{
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color::ColorU,
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fonts::{Properties, Weight},
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platform::{current as platform, Runner},
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scene::Glyph,
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Element as _,
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Border, Element as _, Quad,
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};
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use log::LevelFilter;
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use pathfinder_color::ColorU;
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use simplelog::SimpleLogger;
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fn main() {
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@ -15,29 +14,29 @@ fn main() {
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platform::runner()
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.on_finish_launching(move || {
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app.platform().activate(true);
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app.add_window(|_| View);
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app.add_window(|_| TextView);
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})
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.run();
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}
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struct View;
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struct Element;
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struct TextView;
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struct TextElement;
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impl gpui::Entity for View {
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impl gpui::Entity for TextView {
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type Event = ();
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}
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impl gpui::View for View {
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impl gpui::View for TextView {
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fn ui_name() -> &'static str {
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"view"
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"View"
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}
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fn render<'a>(&self, app: &gpui::AppContext) -> gpui::ElementBox {
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Element.boxed()
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TextElement.boxed()
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}
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}
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impl gpui::Element for Element {
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impl gpui::Element for TextElement {
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type LayoutState = ();
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type PaintState = ();
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@ -45,27 +44,27 @@ impl gpui::Element for Element {
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fn layout(
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&mut self,
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constraint: gpui::SizeConstraint,
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ctx: &mut gpui::LayoutContext,
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_: &mut gpui::LayoutContext,
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) -> (pathfinder_geometry::vector::Vector2F, Self::LayoutState) {
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(constraint.max, ())
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}
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fn after_layout(
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&mut self,
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size: pathfinder_geometry::vector::Vector2F,
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layout: &mut Self::LayoutState,
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ctx: &mut gpui::AfterLayoutContext,
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_: pathfinder_geometry::vector::Vector2F,
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_: &mut Self::LayoutState,
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_: &mut gpui::AfterLayoutContext,
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) {
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}
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fn paint(
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&mut self,
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bounds: pathfinder_geometry::rect::RectF,
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layout: &mut Self::LayoutState,
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_: &mut Self::LayoutState,
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ctx: &mut gpui::PaintContext,
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) -> Self::PaintState {
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let font_size = 18.;
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let family = ctx.font_cache.load_family(&["Fira Code"]).unwrap();
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let font_size = 12.;
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let family = ctx.font_cache.load_family(&["SF Pro Display"]).unwrap();
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let normal = ctx
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.font_cache
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.select_font(family, &Default::default())
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@ -81,32 +80,39 @@ impl gpui::Element for Element {
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)
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.unwrap();
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let text = "Hello world!";
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let line = ctx.text_layout_cache.layout_str(
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"xxXX",
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text,
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font_size,
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&[(0..1, normal), (1..2, bold), (2..3, normal), (3..4, bold)],
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&[
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(0..1, normal),
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(1..2, bold),
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(2..3, normal),
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(3..4, bold),
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(4..text.len(), normal),
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],
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);
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for run in line.runs {
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for glyph in run.glyphs {
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ctx.scene.push_glyph(Glyph {
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font_id: run.font_id,
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font_size,
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id: glyph.id,
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origin: glyph.position,
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color: ColorU::black(),
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});
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}
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}
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ctx.scene.push_quad(Quad {
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bounds: bounds,
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background: Some(ColorU::white()),
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..Default::default()
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});
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line.paint(
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bounds.origin(),
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bounds,
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&[(0..text.len(), ColorU::black())],
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ctx,
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);
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}
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fn dispatch_event(
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&mut self,
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event: &gpui::Event,
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bounds: pathfinder_geometry::rect::RectF,
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layout: &mut Self::LayoutState,
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paint: &mut Self::PaintState,
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ctx: &mut gpui::EventContext,
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_: &gpui::Event,
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_: pathfinder_geometry::rect::RectF,
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_: &mut Self::LayoutState,
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_: &mut Self::PaintState,
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_: &mut gpui::EventContext,
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) -> bool {
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false
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}
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