Fix set_width/set_min_width/set_height/set_min_height

Closes https://github.com/emilk/egui/issues/647

Broke in https://github.com/emilk/egui/pull/629

CHANGELOG.md

@@ -7,6 +7,10 @@ NOTE: [`eframe`](eframe/CHANGELOG.md), [`egui_web`](egui_web/CHANGELOG.md) and [
 
 ## Unreleased
 
+### Fixed 🐛
+
+* Fix `set_width/set_min_width/set_height/set_min_height`
+
 
 ## 0.14.0 - 2021-08-24 - Ui panels and bug fixes
 

egui/src/placer.rs

@@ -223,6 +223,9 @@ impl Placer {
         region.max_rect.min.x = rect.min.x;
         region.max_rect.max.x = rect.max.x;
         region.max_rect = region.max_rect.union(region.min_rect); // make sure we didn't shrink too much
+
+        region.cursor.min.x = region.max_rect.min.x;
+        region.cursor.max.x = region.max_rect.max.x;
     }
 
     /// Set the maximum height of the ui.
@@ -233,6 +236,9 @@ impl Placer {
         region.max_rect.min.y = rect.min.y;
         region.max_rect.max.y = rect.max.y;
         region.max_rect = region.max_rect.union(region.min_rect); // make sure we didn't shrink too much
+
+        region.cursor.min.y = region.max_rect.min.y;
+        region.cursor.max.y = region.max_rect.max.y;
     }
 
     /// Set the minimum width of the ui.