From 69907f123d2f17bc1f9a04c0bda7430f250404de Mon Sep 17 00:00:00 2001
From: Ivan Molodetskikh <yalterz@gmail.com>
Date: Tue, 16 Jan 2024 09:45:47 +0400
Subject: Add live-reload of output scales

---
 src/layout/mod.rs       |  3 +++
 src/layout/workspace.rs | 16 +++++++++++++---
 2 files changed, 16 insertions(+), 3 deletions(-)

(limited to 'src/layout')

diff --git a/src/layout/mod.rs b/src/layout/mod.rs
index 539177cb..be1ed6b5 100644
--- a/src/layout/mod.rs
+++ b/src/layout/mod.rs
@@ -637,6 +637,8 @@ impl<W: LayoutElement> Layout<W> {
     }
 
     pub fn update_output_size(&mut self, output: &Output) {
+        let _span = tracy_client::span!("Layout::update_output_size");
+
         let MonitorSet::Normal { monitors, .. } = &mut self.monitor_set else {
             panic!()
         };
@@ -648,6 +650,7 @@ impl<W: LayoutElement> Layout<W> {
 
                 for ws in &mut mon.workspaces {
                     ws.set_view_size(view_size, working_area);
+                    ws.update_output_scale_transform();
                 }
 
                 break;
diff --git a/src/layout/workspace.rs b/src/layout/workspace.rs
index 2a033a2c..dfcfb68b 100644
--- a/src/layout/workspace.rs
+++ b/src/layout/workspace.rs
@@ -308,7 +308,7 @@ impl<W: LayoutElement> Workspace<W> {
 
     fn enter_output_for_window(&self, window: &W) {
         if let Some(output) = &self.output {
-            prepare_for_output(window, output);
+            set_preferred_scale_transform(window, output);
             window.output_enter(output);
         }
     }
@@ -330,6 +330,15 @@ impl<W: LayoutElement> Workspace<W> {
         }
     }
 
+    pub fn update_output_scale_transform(&mut self) {
+        let Some(output) = self.output.as_ref() else {
+            return;
+        };
+        for window in self.windows() {
+            set_preferred_scale_transform(window, output);
+        }
+    }
+
     fn toplevel_bounds(&self) -> Size<i32, Logical> {
         let mut border = 0;
         if !self.options.border.off {
@@ -363,7 +372,7 @@ impl<W: LayoutElement> Workspace<W> {
         let bounds = self.toplevel_bounds();
 
         if let Some(output) = self.output.as_ref() {
-            prepare_for_output(window, output);
+            set_preferred_scale_transform(window, output);
         }
 
         window.toplevel().with_pending_state(|state| {
@@ -1626,7 +1635,8 @@ fn compute_new_view_offset(
     }
 }
 
-fn prepare_for_output(window: &impl LayoutElement, output: &Output) {
+fn set_preferred_scale_transform(window: &impl LayoutElement, output: &Output) {
+    // FIXME: cache this on the workspace.
     let scale = output.current_scale().integer_scale();
     let transform = output.current_transform();
     window.set_preferred_scale_transform(scale, transform);
-- 
cgit