repl: Scale the text_style font_size and line_height (#16308)

Replaces #16273.

Release Notes:

- repl: Fixed scaling of stdout/stderr line heights

---------

Co-authored-by: Mikayla <mikayla@zed.dev>
Co-authored-by: Nate Butler <iamnbutler@gmail.com>

crates/repl/src/stdio.rs

@@ -1,9 +1,11 @@
 use crate::outputs::ExecutionView;
 use alacritty_terminal::{term::Config, vte::ansi::Processor};
-use gpui::{canvas, size, AnyElement};
+use gpui::{canvas, size, AnyElement, FontStyle, TextStyle, WhiteSpace};
+use settings::Settings as _;
 use std::mem;
 use terminal::ZedListener;
 use terminal_view::terminal_element::TerminalElement;
+use theme::ThemeSettings;
 use ui::{prelude::*, IntoElement, ViewContext};
 
 /// Implements the most basic of terminal output for use by Jupyter outputs
@@ -22,8 +24,38 @@ pub struct TerminalOutput {
 const DEFAULT_NUM_LINES: usize = 32;
 const DEFAULT_NUM_COLUMNS: usize = 128;
 
+pub fn text_style(cx: &mut WindowContext) -> TextStyle {
+    let settings = ThemeSettings::get_global(cx).clone();
+
+    let font_family = settings.buffer_font.family;
+    let font_features = settings.buffer_font.features;
+    let font_weight = settings.buffer_font.weight;
+    let font_fallbacks = settings.buffer_font.fallbacks;
+
+    let theme = cx.theme();
+
+    let text_style = TextStyle {
+        font_family,
+        font_features,
+        font_weight,
+        font_fallbacks,
+        font_size: theme::get_buffer_font_size(cx).into(),
+        font_style: FontStyle::Normal,
+        // todo
+        line_height: cx.line_height().into(),
+        background_color: Some(theme.colors().terminal_background),
+        white_space: WhiteSpace::Normal,
+        // These are going to be overridden per-cell
+        underline: None,
+        strikethrough: None,
+        color: theme.colors().terminal_foreground,
+    };
+
+    text_style
+}
+
 pub fn terminal_size(cx: &mut WindowContext) -> terminal::TerminalSize {
-    let text_style = cx.text_style();
+    let text_style = text_style(cx);
     let text_system = cx.text_system();
 
     let line_height = cx.line_height();
@@ -86,8 +118,8 @@ impl TerminalOutput {
         }
     }
 
-    pub fn render(&self, cx: &ViewContext<ExecutionView>) -> AnyElement {
-        let text_style = cx.text_style();
+    pub fn render(&self, cx: &mut ViewContext<ExecutionView>) -> AnyElement {
+        let text_style = text_style(cx);
         let text_system = cx.text_system();
 
         let grid = self
@@ -101,10 +133,9 @@ impl TerminalOutput {
         let (cells, rects) = TerminalElement::layout_grid(grid, &text_style, text_system, None, cx);
 
         // lines are 0-indexed, so we must add 1 to get the number of lines
+        let text_line_height = text_style.line_height_in_pixels(cx.rem_size());
         let num_lines = cells.iter().map(|c| c.point.line).max().unwrap_or(0) + 1;
-        let height = num_lines as f32 * cx.line_height();
-
-        let line_height = cx.line_height();
+        let height = num_lines as f32 * text_line_height;
 
         let font_pixels = text_style.font_size.to_pixels(cx.rem_size());
         let font_id = text_system.resolve_font(&text_style.font());
@@ -124,7 +155,7 @@ impl TerminalOutput {
                         bounds.origin,
                         &terminal::TerminalSize {
                             cell_width,
-                            line_height,
+                            line_height: text_line_height,
                             size: bounds.size,
                         },
                         cx,
@@ -136,7 +167,7 @@ impl TerminalOutput {
                         bounds.origin,
                         &terminal::TerminalSize {
                             cell_width,
-                            line_height,
+                            line_height: text_line_height,
                             size: bounds.size,
                         },
                         bounds,