WIP Preparing to add UNO support to ColorPaletteSampler

Author: Avid29

components/ColorAnalyzer/samples/ColorPaletteSampler/BaseColorSample.xaml

@@ -14,7 +14,8 @@
     <local:ColorPaletteSamplerToolkitSampleBase.Resources>
         <helpers:ColorPaletteSampler x:Name="ColorPaletteSampler">
             <helpers:ColorPaletteSampler.Source>
-                <helpers:UIColorSource Source="{x:Bind SampledImage}" />
+                <!--<helpers:UIColorSource Source="{x:Bind SampledImage}" />-->
+                <helpers:UrlColorSource Source="{x:Bind SelectedImageUrl, Mode=OneWay}" />
             </helpers:ColorPaletteSampler.Source>
             <helpers:BaseColorPaletteSelector x:Name="BaseColorPalette" MinColorCount="3" />
         </helpers:ColorPaletteSampler>

components/ColorAnalyzer/samples/ColorPaletteSampler/ColorWeightSample.xaml

@@ -14,7 +14,8 @@
     <local:ColorPaletteSamplerToolkitSampleBase.Resources>
         <helpers:ColorPaletteSampler x:Name="ColorPaletteSampler">
             <helpers:ColorPaletteSampler.Source>
-                <helpers:UIColorSource Source="{x:Bind SampledImage}" />
+                <!--<helpers:UIColorSource Source="{x:Bind SampledImage}" />-->
+                <helpers:UrlColorSource Source="{x:Bind SelectedImageUrl, Mode=OneWay}" />
             </helpers:ColorPaletteSampler.Source>
             <helpers:ColorWeightPaletteSelector x:Name="ColorWeightPalette" MinColorCount="5" />
         </helpers:ColorPaletteSampler>

components/ColorAnalyzer/samples/ColorPaletteSampler/MultiplePaletteSelectorSample.xaml

@@ -14,7 +14,8 @@
     <local:ColorPaletteSamplerToolkitSampleBase.Resources>
         <helpers:ColorPaletteSampler x:Name="ColorPaletteSampler">
             <helpers:ColorPaletteSampler.Source>
-                <helpers:UIColorSource Source="{x:Bind SampledImage}" />
+                <!--<helpers:UIColorSource Source="{x:Bind SampledImage}" />-->
+                <helpers:UrlColorSource Source="{x:Bind SelectedImageUrl, Mode=OneWay}" />
             </helpers:ColorPaletteSampler.Source>
             <helpers:AccentColorPaletteSelector x:Name="AccentPalette" MinColorCount="1" />
             <helpers:BaseColorPaletteSelector x:Name="BaseColorPalette" MinColorCount="1" />

components/ColorAnalyzer/src/ColorPaletteSampler/ColorSources/ColorSource.cs

@@ -7,7 +7,7 @@ namespace CommunityToolkit.WinUI.Helpers;
 /// <summary>
 /// A base class for a color data source in the <see cref="ColorPaletteSampler"/>.
 /// </summary>
-public abstract class ColorSource : DependencyObject
+public abstract partial class ColorSource : DependencyObject
 {
     /// <summary>
     /// An event invoked when the source pixels changed.

components/ColorAnalyzer/src/ColorPaletteSampler/ColorSources/StreamColorSource.cs

@@ -29,11 +29,16 @@ public Stream? Source
     /// <inheritdoc/>
     public override async Task<Stream?> GetPixelDataAsync(int requestedSamples)
     {
-        // TODO: Sample the data
+#if !HAS_UNO
         var decoder = await BitmapDecoder.CreateAsync(Source.AsRandomAccessStream());
         var pixelData = await decoder.GetPixelDataAsync();
         var bytes = pixelData.DetachPixelData();
         return new MemoryStream(bytes);
+#else
+        // NOTE: This assumes raw pixel data.
+        // TODO: Uses some form of image processing
+        return Source;
+#endif
     }
 
     private static void OnSourceChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)

components/ColorAnalyzer/src/ColorPaletteSampler/ColorSources/UIColorSource.cs

@@ -2,6 +2,7 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+#if !HAS_UNO
 
 using System.Numerics;
 
@@ -63,3 +64,5 @@ private static void OnSourceChanged(DependencyObject d, DependencyPropertyChange
         source.InvokeSourceUpdated();
     }
 }
+
+#endif

components/ColorAnalyzer/src/ColorPaletteSampler/ColorSources/UrlColorSource.cs

@@ -34,12 +34,17 @@ public string? Source
         if (Source is null)
             return null;
 
-        // TODO: Sample the data
         var stream = await RandomAccessStreamReference.CreateFromUri(new Uri(Source)).OpenReadAsync();
+#if !HAS_UNO
         var decoder = await BitmapDecoder.CreateAsync(stream);
         var pixelData = await decoder.GetPixelDataAsync();
         var bytes = pixelData.DetachPixelData();
         return new MemoryStream(bytes);
+#else
+        // NOTE: This assumes raw pixel data.
+        // TODO: Uses some form of image processing
+        return stream.AsStream();
+#endif
     }
 
     private static void OnSourceChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)

components/ColorAnalyzer/src/ColorPaletteSampler/PaletteSelectors/ColorPaletteSelector.cs

@@ -9,7 +9,7 @@ namespace CommunityToolkit.WinUI.Helpers;
 /// <summary>
 /// A base class for selecting colors from a palette extracted by the <see cref="ColorPaletteSampler"/>.
 /// </summary>
-public abstract class ColorPaletteSelector : DependencyObject
+public abstract partial class ColorPaletteSelector : DependencyObject
 {
     private IEnumerable<PaletteColor>? _palette;
 

components/ColorAnalyzer/src/MultiTarget.props

@@ -1,10 +1,10 @@
 <Project>
-    <PropertyGroup>
-        <!--
+  <PropertyGroup>
+    <!--
           MultiTarget is a custom property that indicates which target a project is designed to be built for / run on.
           Used to create project references, generate solution files, enable/disable TargetFrameworks, and build nuget packages.
         -->
         <!-- Uno is not currently supported because this component depends on the RenderTargetBitmap.-->
-        <MultiTarget>uwp;wasdk;</MultiTarget>
-    </PropertyGroup>
+    <MultiTarget>uwp;wasdk;</MultiTarget>
+  </PropertyGroup>
 </Project>

global.json

@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "9.0.101",
+    "version": "10.0.101",
     "rollForward": "latestFeature"
   },
   "msbuild-sdks":