release: Improve image loading & quality.

Author: Aetopia

src/Flarial.Launcher/Controls/PromotionImageButton.cs

@@ -23,19 +23,22 @@ protected PromotionImageButton() : base(new())
     {
         (~this).Width = 320 * 0.95;
         (~this).Height = 50 * 0.95;
-        (~this).Visibility = Visibility.Collapsed;
 
         (~this).Tag = NavigateUri;
-        (~this).ImageFailed += OnImageFailed;
+        (~this).Visibility = Visibility.Collapsed;
+
+        (~this).Source = new BitmapImage
+        {
+            DecodePixelWidth = (int)(~this).Width,
+            DecodePixelHeight = (int)(~this).Height,
+            DecodePixelType = DecodePixelType.Logical,
+            UriSource = ImageUri is { } ? new(ImageUri) : null,
+        };
+
+        (~this).ImageOpened += OnImageOpened;
         (~this).PointerExited += OnImagePointerExited;
         (~this).PointerEntered += OnImagePointerEntered;
         (~this).PointerPressed += OnImagePointerPressed;
-
-        if (ImageUri is { })
-        {
-            (~this).Visibility = Visibility.Visible;
-            (~this).Source = new BitmapImage { UriSource = new(ImageUri) };
-        }
     }
 
     unsafe static void OnImagePointerPressed(object sender, RoutedEventArgs args)
@@ -44,7 +47,7 @@ unsafe static void OnImagePointerPressed(object sender, RoutedEventArgs args)
             ShellExecute(Null, null, lpFile, null, null, SW_NORMAL);
     }
 
-    static void OnImageFailed(object sender, RoutedEventArgs args) => ((Image)sender).Visibility = Visibility.Collapsed;
+    static void OnImageOpened(object sender, RoutedEventArgs args) => ((Image)sender).Visibility = Visibility.Visible;
     static void OnImagePointerEntered(object sender, RoutedEventArgs args) => CoreWindow.GetForCurrentThread().PointerCursor = _hand;
     static void OnImagePointerExited(object sender, RoutedEventArgs args) => CoreWindow.GetForCurrentThread().PointerCursor = _arrow;
 }

src/Flarial.Launcher/Pages/HomePage.cs

@@ -17,7 +17,7 @@ namespace Flarial.Launcher.Pages;
 
 sealed class HomePage : Grid
 {
-    readonly Image _logoImage = new()
+    readonly Image _image = new()
     {
         Width = 96,
         Height = 96,
@@ -76,15 +76,15 @@ internal HomePage(MainNavigationView view, ApplicationSettings settings)
 
         using (var stream = ApplicationManifest.GetResourceStream("Application.ico"))
         {
-            var logoBitmap = (BitmapImage)_logoImage.Source;
-            logoBitmap.SetSource(stream.AsRandomAccessStream());
+            var source = (BitmapImage)_image.Source;
+            source.SetSource(stream.AsRandomAccessStream());
         }
 
         Children.Add(_leftText);
         Children.Add(_rightText);
 
         Children.Add(_button);
-        Children.Add(_logoImage);
+        Children.Add(_image);
 
         Children.Add(new PromotionImagesBox()
         {
@@ -95,10 +95,7 @@ internal HomePage(MainNavigationView view, ApplicationSettings settings)
         _button.Click += OnButtonClick;
     }
 
-    void OnFlarialClientDownloadAsync(int value) => Dispatcher.Invoke(() =>
-    {
-        _button.Content = $"Downloading... {value}%";
-    });
+    void OnFlarialClientDownloadAsync(int value) => Dispatcher.Invoke(() => _button.Content = $"Downloading... {value}%");
 
     async void OnButtonClick(object sender, RoutedEventArgs args)
     {