From 07513f59409b411f87abb6454ea99089245320db Mon Sep 17 00:00:00 2001
From: Sophie Herold <sophie@hemio.de>
Date: Sun, 13 Aug 2023 12:18:02 +0200
Subject: [PATCH] image: Don't render first tiles with zoom=1

Closes #145

Part-of: <https://gitlab.gnome.org/GNOME/loupe/-/merge_requests/276>
---
 src/widgets/image.rs | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/widgets/image.rs b/src/widgets/image.rs
index 0d2c7e7..0d8ec11 100644
--- a/src/widgets/image.rs
+++ b/src/widgets/image.rs
@@ -592,8 +592,12 @@ mod imp {
             self.widget_dimensions.set((width, height));
             obj.configure_adjustments();
 
-            // Get potentially missing tiles for enlarged viewing area
-            obj.request_tiles();
+            // Avoid updates for first size_allocate with zoom not set yet
+            if obj.is_loaded() {
+                // Get potentially missing tiles for enlarged viewing area
+
+                obj.request_tiles();
+            }
         }
 
         // called when the widget content should be re-rendered
@@ -1251,6 +1255,10 @@ impl LpImage {
     }
 
     fn set_zoom_target(&self, zoom_target: f64) {
+        if self.imp().zoom_target.get() == zoom_target {
+            return;
+        }
+
         log::debug!("Setting zoom target {zoom_target}");
 
         self.imp().zoom_target.set(zoom_target);