Redraw the window when the logical dimensions change

Previously the window would only be redrawn when the physical dimensions
changed, which meant that the effects of a pixel scale change would not
be visible until the application requested a re-render.

1 files changed, 9 insertions, 10 deletions

diff --git a/src/window.rs b/src/window.rs
index b01795e..a7932de 100644
--- a/src/window.rs
+++ b/src/window.rs
@@ -109,20 +109,17 @@ impl Window {
 
     /// Resize the frame buffer and screen surface to the new size of the window.
     pub fn resize_buffer_and_surface(&mut self, physical_dimensions: Dimensions) {
-        if self.surface_dimensions == physical_dimensions {
-            return;
-        }
         if let Some((width, height)) = dim_to_nonzero_size(physical_dimensions) {
             self.surface.resize(width, height).unwrap();
             self.surface_dimensions = physical_dimensions;
         };
-        let pixel_scale = self.controller.pixel_scale().get();
-        let logical_dimensions = physical_dimensions / pixel_scale;
-        self.buffer.resize(logical_dimensions);
-        self.controller.on_resize(logical_dimensions);
-
-        self.pixel_scale = pixel_scale;
-        self.current_render_hint = RenderHint::Redraw;
+        self.pixel_scale = self.controller.pixel_scale().get();
+        let logical_dimensions = physical_dimensions / self.pixel_scale;
+        if logical_dimensions != self.buffer.dimensions() {
+            self.buffer.resize(logical_dimensions);
+            self.controller.on_resize(logical_dimensions);
+            self.current_render_hint = RenderHint::Redraw;
+        }
     }
 
     pub fn move_cursor(&mut self, position: Point) {
@@ -141,6 +138,8 @@ impl Window {
         if let RenderRequest::Render(hint) = self.controller.render_request() {
             self.current_render_hint &= hint;
             self.window.request_redraw();
+        } else if self.current_render_hint.is_redraw() {
+            self.window.request_redraw();
         }
     }