Don't rebuild histogram unnecessarily

kra-mo · Sep 17, 2024 · d0b51c4 · d0b51c4
1 parent e463f08
commit d0b51c4
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/lib/editor_page.dart b/lib/editor_page.dart
@@ -47,6 +47,7 @@ class _SlyEditorPageState extends State<SlyEditorPage> {
 
  late final SlyImage _originalImage = widget.image;
  late SlyImage _editedImage;
+ late Widget _histogram = getHistogram(_editedImage);
 
  Uint8List? _originalImageData;
  Uint8List? _editedImageData;
@@ -219,9 +220,13 @@ class _SlyEditorPageState extends State<SlyEditorPage> {
  _saveOnLoad = false;
  }
 
+ if (!mounted) return;
+ setState(() {
+ _histogram = getHistogram(_editedImage);
+ });
+
  _editedImage.encode(format: 'JPEG75').then((data) {
  if (!mounted) return;
-
  setState(() {
  _editedImageData = data;
  });
@@ -1171,7 +1176,7 @@ class _SlyEditorPageState extends State<SlyEditorPage> {
  child: SizedBox(
  height: constraints.maxWidth > 600 ? 40 : 30,
  width: constraints.maxWidth > 600 ? null : 150,
- child: getHistogram(_editedImage),
+ child: _histogram,
  ),
  )
  : Container(),