From 575f5910fa6fd33c51d02f11730e191f8c10a92a Mon Sep 17 00:00:00 2001
From: Max Brunsfeld <maxbrunsfeld@gmail.com>
Date: Fri, 2 Apr 2021 14:35:44 -0700
Subject: [PATCH] Use a real FontSystem in test platform

---
 gpui/src/platform/mac/fonts.rs |  2 +
 gpui/src/platform/test.rs      | 80 +++-------------------------------
 2 files changed, 8 insertions(+), 74 deletions(-)

diff --git a/gpui/src/platform/mac/fonts.rs b/gpui/src/platform/mac/fonts.rs
index 9fcc4852bf..609a5021da 100644
--- a/gpui/src/platform/mac/fonts.rs
+++ b/gpui/src/platform/mac/fonts.rs
@@ -91,9 +91,11 @@ impl FontSystemState {
         let mut font_ids = Vec::new();
         for font in self.source.select_family_by_name(name)?.fonts() {
             let font = font.load()?;
+            eprintln!("load font {:?}", font);
             font_ids.push(FontId(self.fonts.len()));
             self.fonts.push(font);
         }
+        eprintln!("font ids: {:?}", font_ids);
         Ok(font_ids)
     }
 
diff --git a/gpui/src/platform/test.rs b/gpui/src/platform/test.rs
index 935ce27928..545ab10e34 100644
--- a/gpui/src/platform/test.rs
+++ b/gpui/src/platform/test.rs
@@ -1,17 +1,13 @@
-use crate::fonts::FontId;
-use pathfinder_geometry::{
-    rect,
-    vector::{vec2f, vec2i, Vector2F},
-};
+use pathfinder_geometry::vector::Vector2F;
 use std::rc::Rc;
 use std::sync::Arc;
 
 struct App {
     dispatcher: Arc<dyn super::Dispatcher>,
+    fonts: Arc<dyn super::FontSystem>,
 }
 
 struct Dispatcher;
-struct FontSystem;
 
 pub struct Window {
     size: Vector2F,
@@ -27,6 +23,7 @@ impl App {
     fn new() -> Self {
         Self {
             dispatcher: Arc::new(Dispatcher),
+            fonts: Arc::new(super::current::FontSystem::new()),
         }
     }
 }
@@ -36,18 +33,18 @@ impl super::App for App {
         self.dispatcher.clone()
     }
 
-    fn activate(&self, ignoring_other_apps: bool) {}
+    fn activate(&self, _ignoring_other_apps: bool) {}
 
     fn open_window(
         &self,
         options: super::WindowOptions,
-        executor: Rc<super::executor::Foreground>,
+        _executor: Rc<super::executor::Foreground>,
     ) -> anyhow::Result<Box<dyn super::Window>> {
         Ok(Box::new(Window::new(options.bounds.size())))
     }
 
     fn fonts(&self) -> std::sync::Arc<dyn super::FontSystem> {
-        Arc::new(FontSystem)
+        self.fonts.clone()
     }
 }
 
@@ -97,71 +94,6 @@ impl super::Window for Window {
     }
 }
 
-impl super::FontSystem for FontSystem {
-    fn load_family(&self, name: &str) -> anyhow::Result<Vec<FontId>> {
-        Ok(vec![FontId(0)])
-    }
-
-    fn select_font(
-        &self,
-        font_ids: &[FontId],
-        properties: &font_kit::properties::Properties,
-    ) -> anyhow::Result<FontId> {
-        Ok(font_ids[0])
-    }
-
-    fn font_metrics(&self, font_id: FontId) -> font_kit::metrics::Metrics {
-        font_kit::metrics::Metrics {
-            units_per_em: 1,
-            ascent: 0.,
-            descent: 0.,
-            line_gap: 0.,
-            underline_position: 1.,
-            underline_thickness: 1.,
-            cap_height: 12.,
-            x_height: 12.,
-            bounding_box: rect::RectF::new(vec2f(0., 0.), vec2f(10., 10.)),
-        }
-    }
-
-    fn typographic_bounds(
-        &self,
-        font_id: FontId,
-        glyph_id: crate::fonts::GlyphId,
-    ) -> anyhow::Result<rect::RectF> {
-        Ok(rect::RectF::new(vec2f(0., 0.), vec2f(0., 0.)))
-    }
-
-    fn glyph_for_char(&self, font_id: FontId, ch: char) -> Option<crate::fonts::GlyphId> {
-        Some(0)
-    }
-
-    fn rasterize_glyph(
-        &self,
-        font_id: FontId,
-        font_size: f32,
-        glyph_id: crate::fonts::GlyphId,
-        subpixel_shift: Vector2F,
-        scale_factor: f32,
-    ) -> Option<(rect::RectI, Vec<u8>)> {
-        Some((rect::RectI::new(vec2i(0, 0), vec2i(0, 0)), vec![]))
-    }
-
-    fn layout_str(
-        &self,
-        text: &str,
-        font_size: f32,
-        runs: &[(std::ops::Range<usize>, FontId)],
-    ) -> crate::text_layout::Line {
-        crate::text_layout::Line {
-            width: 0.,
-            runs: vec![],
-            len: 0,
-            font_size: 12.,
-        }
-    }
-}
-
 pub fn app() -> impl super::App {
     App::new()
 }