Upgrade Glutin to v0.19.0

Some changes include:

• Use the with_hardware_acceleration function on the ContextBuilder to not require the discrete GPU
• Remove the LMenu and RMenu virtual key codes (winit 0.16.0 removed these because Windows now generates LAlt and RAlt instead
• Replace set_cursor_state with hide_cursor (winit 0.16.0 removed the set_cursor_state function)
• Replace GlWindow::hidpi_factor with GlWindow::get_hidpi_factor and change to expecting an f64
• Use the glutin/winit dpi size and position types where possible

Glutin's dpi change event has been implemented. All size events now
return logical sizes. As a result of that, the logical sizes are translated
in the `display::handle_rezize` method so DPI scaling works correctly.

When the DPI is changed, the glyph cache is updated to make use of the
correct font size again.

Moving a window to a different screen which is a different DPI caused a
racing condition where the logical size of the event was sent to the
`handle_resize` method in `src/display.rs`, however if there was a DPI
change event before `handle_resize` is able to process this message, it
would incorrectly use the new DPI to scale the resize event.

To solve this issue instead of sending the logical size to the
`handle_resize` method and then converting it to a physical size in
there, the `LogicalSize` of the resize event is transformed into a
`PhysicalSize` as soon as it's received. This fixes potential racing
conditions since all events are processed in order.

The padding has been changed so it's also scaled by DPR.

The `scale_with_dpi` config option has been removed. If it's not present
a warning will be emitted.

The `winit` dependency on Windows has been removed. All interactions
with winit in Alacritty are handled through glutin.

1 files changed, 15 insertions, 0 deletions

diff --git a/src/term/mod.rs b/src/term/mod.rs
index 971755af..39213ee2 100644
--- a/src/term/mod.rs
+++ b/src/term/mod.rs
@@ -832,6 +832,10 @@ pub struct SizeInfo {
 
     /// Horizontal window padding
     pub padding_y: f32,
+
+    /// DPI factor of the current window
+    #[serde(default)]
+    pub dpr: f64,
 }
 
 impl SizeInfo {
@@ -2065,6 +2069,7 @@ mod tests {
             cell_height: 3.0,
             padding_x: 0.0,
             padding_y: 0.0,
+            dpr: 1.0,
         };
         let mut term = Term::new(&Default::default(), size);
         let mut grid: Grid<Cell> = Grid::new(Line(3), Column(5), 0, Cell::default());
@@ -2108,6 +2113,7 @@ mod tests {
             cell_height: 3.0,
             padding_x: 0.0,
             padding_y: 0.0,
+            dpr: 1.0,
         };
         let mut term = Term::new(&Default::default(), size);
         let mut grid: Grid<Cell> = Grid::new(Line(1), Column(5), 0, Cell::default());
@@ -2133,6 +2139,7 @@ mod tests {
             cell_height: 3.0,
             padding_x: 0.0,
             padding_y: 0.0,
+            dpr: 1.0,
         };
         let mut term = Term::new(&Default::default(), size);
         let mut grid: Grid<Cell> = Grid::new(Line(3), Column(3), 0, Cell::default());
@@ -2177,6 +2184,7 @@ mod tests {
             cell_height: 3.0,
             padding_x: 0.0,
             padding_y: 0.0,
+            dpr: 1.0,
         };
         let mut term = Term::new(&Default::default(), size);
         let cursor = Point::new(Line(0), Column(0));
@@ -2195,6 +2203,7 @@ mod tests {
             cell_height: 3.0,
             padding_x: 0.0,
             padding_y: 0.0,
+            dpr: 1.0,
         };
         let config: Config = Default::default();
         let mut term: Term = Term::new(&config, size);
@@ -2223,6 +2232,7 @@ mod tests {
             cell_height: 3.0,
             padding_x: 0.0,
             padding_y: 0.0,
+            dpr: 1.0,
         };
         let config: Config = Default::default();
         let mut term: Term = Term::new(&config, size);
@@ -2242,6 +2252,7 @@ mod tests {
             cell_height: 3.0,
             padding_x: 0.0,
             padding_y: 0.0,
+            dpr: 1.0,
         };
         let config: Config = Default::default();
         let mut term: Term = Term::new(&config, size);
@@ -2262,6 +2273,7 @@ mod tests {
             cell_height: 3.0,
             padding_x: 0.0,
             padding_y: 0.0,
+            dpr: 1.0
         };
         let config: Config = Default::default();
         let mut term: Term = Term::new(&config, size);
@@ -2288,6 +2300,7 @@ mod tests {
             cell_height: 3.0,
             padding_x: 0.0,
             padding_y: 0.0,
+            dpr: 1.0,
         };
         let mut term = Term::new(&Default::default(), size);
         let mut grid: Grid<Cell> = Grid::new(Line(1), Column(15), 0, Cell::default());
@@ -2323,6 +2336,7 @@ mod tests {
             cell_height: 3.0,
             padding_x: 0.0,
             padding_y: 0.0,
+            dpr: 1.0,
         };
         let mut term = Term::new(&Default::default(), size);
         let mut grid: Grid<Cell> = Grid::new(Line(1), Column(15), 0, Cell::default());
@@ -2357,6 +2371,7 @@ mod tests {
             cell_height: 3.0,
             padding_x: 0.0,
             padding_y: 0.0,
+            dpr: 1.0,
         };
         let mut term = Term::new(&Default::default(), size);
         let mut grid: Grid<Cell> = Grid::new(Line(1), Column(15), 0, Cell::default());