update reader

lib/pages/reader/gesture.dart

@@ -103,6 +103,9 @@ class _ReaderGestureDetectorState extends State<_ReaderGestureDetector> {
   }
 
   void onMouseWheel(bool forward) {
+    if (HardwareKeyboard.instance.isControlPressed) {
+      return;
+    }
     if (context.reader.mode.key.startsWith('gallery')) {
       if (forward) {
         if (!context.reader.toNextPage()) {

lib/pages/reader/images.dart

@@ -170,14 +170,23 @@ class _GalleryModeState extends State<_GalleryMode>
 
           photoViewControllers[index] = PhotoViewController();
 
+          if(reader.imagesPerPage == 1) {
+            return PhotoViewGalleryPageOptions(
+              filterQuality: FilterQuality.medium,
+              controller: photoViewControllers[index],
+              imageProvider: _createImageProviderFromKey(pageImages[0], context),
+              fit: BoxFit.contain,
+              errorBuilder: (_, error, s, retry) {
+                return NetworkError(message: error.toString(), retry: retry);
+              },
+            );
+          }
+
           return PhotoViewGalleryPageOptions.customChild(
-            child: PhotoView.customChild(
-              key: ValueKey('photo_view_$index'),
             controller: photoViewControllers[index],
             minScale: PhotoViewComputedScale.contained * 1.0,
             maxScale: PhotoViewComputedScale.covered * 10.0,
             child: buildPageImages(pageImages),
-            ),
           );
         }
       },