Make sidebar resizing a bit less CPU intensive

Author: timothyschoen

Source/CanvasViewport.h

@@ -699,13 +699,6 @@ class CanvasViewport final : public Viewport
         minimap.updateMinimap(r);
 
         cnv->getParentComponent()->setSize(getWidth(), getHeight());
-        
-        // This fixes some graphical glitches on macOS and Linux, but causes resize issues on Windows
-#if !JUCE_WINDOWS
-        if(!scaleChanged) {
-            editor->nvgSurface.renderAll();
-        }
-#endif
     }
 
     void resized() override
@@ -742,6 +735,13 @@ class CanvasViewport final : public Viewport
 
         auto const offset = currentCentre - newCentre;
         setViewPosition(getViewPosition() + offset);
+        
+        // This fixes some graphical glitches on macOS and Linux, but causes resize issues on Windows
+#if !JUCE_WINDOWS
+        if(!scaleChanged) {
+            editor->nvgSurface.renderAll();
+        }
+#endif
     }
 
     // Never respond to arrow keys, they have a different meaning

Source/NVGSurface.h

@@ -247,7 +247,8 @@ class NVGImage {
             totalWidth = other.totalWidth;
             totalHeight = other.totalHeight;
             onImageInvalidate = other.onImageInvalidate;
-
+            isDirty = false;
+            
             other.subImages.clear();
             allImages.insert(this);
         }
@@ -272,7 +273,8 @@ class NVGImage {
             totalWidth = other.totalWidth;
             totalHeight = other.totalHeight;
             onImageInvalidate = other.onImageInvalidate;
-
+            isDirty = false;
+            
             other.subImages.clear(); // Important, makes sure the old buffer can't delete this buffer
             allImages.insert(this);
         }
@@ -416,6 +418,7 @@ class NVGImage {
             }
             x += textureSizeLimit;
         }
+        isDirty = false;
     }
 
     void renderAlphaImage(NVGcontext* nvg, Rectangle<int> b, NVGcolor const col)