Enable subpixel glyph positioning in Pango

Makes things scale more smoothly.

5 files changed, 8 insertions, 0 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 0c1286e5..2cfd72d8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2186,6 +2186,7 @@ dependencies = [
  "niri-ipc",
  "notify-rust",
  "ordered-float",
+ "pango",
  "pangocairo",
  "pipewire",
  "png",
diff --git a/Cargo.toml b/Cargo.toml
index 7076f114..f0b009d6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -64,6 +64,7 @@ niri-config = { version = "0.1.7", path = "niri-config" }
 niri-ipc = { version = "0.1.7", path = "niri-ipc", features = ["clap"] }
 notify-rust = { version = "~4.10.0", optional = true }
 ordered-float = "4.2.0"
+pango = { version = "0.19.8", features = ["v1_44"] }
 pangocairo = "0.19.8"
 pipewire = { version = "0.8.0", optional = true }
 png = "0.17.13"
diff --git a/src/ui/config_error_notification.rs b/src/ui/config_error_notification.rs
index b120f494..aa218c91 100644
--- a/src/ui/config_error_notification.rs
+++ b/src/ui/config_error_notification.rs
@@ -192,6 +192,7 @@ fn render(
     let surface = ImageSurface::create(cairo::Format::ARgb32, 0, 0)?;
     let cr = cairo::Context::new(&surface)?;
     let layout = pangocairo::functions::create_layout(&cr);
+    layout.context().set_round_glyph_positions(false);
     layout.set_font_description(Some(&font));
     layout.set_markup(&text);
 
@@ -206,6 +207,7 @@ fn render(
 
     cr.move_to(padding.into(), padding.into());
     let layout = pangocairo::functions::create_layout(&cr);
+    layout.context().set_round_glyph_positions(false);
     layout.set_font_description(Some(&font));
     layout.set_markup(&text);
 
diff --git a/src/ui/exit_confirm_dialog.rs b/src/ui/exit_confirm_dialog.rs
index 9ffae3a7..6458558f 100644
--- a/src/ui/exit_confirm_dialog.rs
+++ b/src/ui/exit_confirm_dialog.rs
@@ -109,6 +109,7 @@ fn render(scale: f64) -> anyhow::Result<MemoryBuffer> {
     let surface = ImageSurface::create(cairo::Format::ARgb32, 0, 0)?;
     let cr = cairo::Context::new(&surface)?;
     let layout = pangocairo::functions::create_layout(&cr);
+    layout.context().set_round_glyph_positions(false);
     layout.set_font_description(Some(&font));
     layout.set_alignment(Alignment::Center);
     layout.set_markup(TEXT);
@@ -124,6 +125,7 @@ fn render(scale: f64) -> anyhow::Result<MemoryBuffer> {
 
     cr.move_to(padding.into(), padding.into());
     let layout = pangocairo::functions::create_layout(&cr);
+    layout.context().set_round_glyph_positions(false);
     layout.set_font_description(Some(&font));
     layout.set_alignment(Alignment::Center);
     layout.set_markup(TEXT);
diff --git a/src/ui/hotkey_overlay.rs b/src/ui/hotkey_overlay.rs
index bc53d573..6e5f24fa 100644
--- a/src/ui/hotkey_overlay.rs
+++ b/src/ui/hotkey_overlay.rs
@@ -250,6 +250,7 @@ fn render(
     let surface = ImageSurface::create(cairo::Format::ARgb32, 0, 0)?;
     let cr = cairo::Context::new(&surface)?;
     let layout = pangocairo::functions::create_layout(&cr);
+    layout.context().set_round_glyph_positions(false);
     layout.set_font_description(Some(&font));
 
     let bold = AttrList::new();
@@ -301,6 +302,7 @@ fn render(
 
     cr.move_to(padding.into(), padding.into());
     let layout = pangocairo::functions::create_layout(&cr);
+    layout.context().set_round_glyph_positions(false);
     layout.set_font_description(Some(&font));
 
     cr.set_source_rgb(1., 1., 1.);