Apply ForegroundScale per platform

doc/toc.yml

@@ -1,3 +1,5 @@
 items:
 - name: Using Uno Resizetizer
-  href: using-uno-resizetizer.md
+  href: using-uno-resizetizer.md
+- name: Properties avaliable on Uno Resizetizer
+  href: uno-resizetizer-properties.md

doc/uno-resizetizer-properties.md

@@ -0,0 +1,53 @@
+---
+uid: Overview.Uno.Resizetizer.Properties
+---
+
+# Resizetizer Properties
+
+Resizetizer has support for three items they are:
+
+* UnoIcon
+* UnoImage
+* UnoSplashScreen
+
+Each of these items have properties that allow you to influence the behavior of the generated asset, at this page you can find all available properties for each item their meaning.
+
+## Global Properties
+
+Properties that can be used across all items
+
+| Property Name | Description                                                                                                                         |
+| ------------- | ----------------------------------------------------------------------------------------------------------------------------------- |
+| BaseSize      | Used to specify the size that will be used as a basement for the resize operations. e.g.: `BaseSize="48,48"`                                     |
+| Link          | Used to specify a custom path for your image, this path should be used inside your application when you want to reference the image |
+| Resize        | Boolean value to say if the asset should Resized or not. By default just vectors asset are resized by default                       |
+| TintColor     | Color that will be used to tint the image during the resize phase. You can use a Hex value or a named value like `Fuchsia`           |
+| Color         | Color that will be used as a background color                                                                                                                                    |
+
+## UnoIcon
+
+| Property Name          | Description                                                                                                                           |
+| ---------------------- | ------------------------------------------------------------------------------------------------------------------------------------- |
+| Include                | Used to insert the path of the Background image.                                                                                      |
+| ForegroundFile         | Used to insert the path of the Foreground image                                                                                       |
+| ForegroundScale        | Used to rescale the Foreground image, in order to fit on the app icon, it's a percentage value so `0.33` will be translatated as 33%.   | 
+| AndroidForegroundScale | The same as ForegroundScale, but the value will be applied just for Android.                                                          |
+| WasmForegroundScale    | The same as ForegroundScale, but the value will be applied just for Wasm                                                              |
+| WindowsForegroundScale | The same as ForegroundScale, but the value will be applied just for Windows                                                           |
+| IOSForegroundScale     | The same as ForegroundScale, but the value will be applied just for iOS                                                               |
+| SkiaForegroundScale    | The same as ForegroundScale, but the value will be applied just for Skia targets                                                               |
+
+> [!NOTE]
+> The PlatformsForegroundScale (AndroidForegroundScale, WasmForegroundScale, etc) will override the global ForegroundScale value.
+
+## UnoImage
+
+| Property Name | Description |
+| ------------- | ----------- |
+| Include       | Used to insert the path of the image asset, could be a `png` or `svg`             |
+
+## UnoSplashScreen
+
+| Property Name | Description |
+| ------------- | ----------- |
+| Include       | Used to insert the path of the image asset, could be a `png` or `svg`             |

src/Resizetizer/src/ResizeImageInfo.cs

@@ -1,11 +1,11 @@
 #nullable enable
+using Microsoft.Build.Framework;
+using SkiaSharp;
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Globalization;
 using System.IO;
-using Microsoft.Build.Framework;
-using SkiaSharp;
 
 namespace Uno.Resizetizer
 {
@@ -91,9 +91,9 @@ public static List<ResizeImageInfo> Parse(IEnumerable<ITaskItem>? images)
 					}
 				}
 
-				info.BaseSize = Utils.ParseSizeString(image.GetMetadata("BaseSize"));
+				info.BaseSize = Utils.ParseSizeString(image.GetMetadata(nameof(BaseSize)));
 
-				if (bool.TryParse(image.GetMetadata("Resize"), out var rz))
+				if (bool.TryParse(image.GetMetadata(nameof(Resize)), out var rz))
 				{
 					info.Resize = rz;
 				}
@@ -103,20 +103,20 @@ public static List<ResizeImageInfo> Parse(IEnumerable<ITaskItem>? images)
 					info.Resize = false;
 				}
 
-				var tintColor = image.GetMetadata("TintColor");
+				var tintColor = image.GetMetadata(nameof(TintColor));
 				info.TintColor = Utils.ParseColorString(tintColor);
 				if (info.TintColor is null && !string.IsNullOrEmpty(tintColor))
 					throw new InvalidDataException($"Unable to parse color value '{tintColor}' for '{info.Filename}'.");
 
-				var color = image.GetMetadata("Color");
+				var color = image.GetMetadata(nameof(Color));
 				info.Color = Utils.ParseColorString(color);
 				if (info.Color is null && !string.IsNullOrEmpty(color))
 					throw new InvalidDataException($"Unable to parse color value '{color}' for '{info.Filename}'.");
 
-				if (bool.TryParse(image.GetMetadata("IsAppIcon"), out var iai))
+				if (bool.TryParse(image.GetMetadata(nameof(IsAppIcon)), out var iai))
 					info.IsAppIcon = iai;
 
-				if (float.TryParse(image.GetMetadata("ForegroundScale"),NumberStyles.Number, CultureInfo.InvariantCulture, out var fsc))
+				if (float.TryParse(image.GetMetadata(nameof(ForegroundScale)), NumberStyles.Number, CultureInfo.InvariantCulture, out var fsc))
 					info.ForegroundScale = fsc;
 
 				var fgFile = image.GetMetadata("ForegroundFile");
@@ -129,11 +129,16 @@ public static List<ResizeImageInfo> Parse(IEnumerable<ITaskItem>? images)
 					info.ForegroundFilename = fgFileInfo.FullName;
 				}
 
-				// make sure the image is a foreground if this is an icon
-				if (info.IsAppIcon && string.IsNullOrEmpty(info.ForegroundFilename))
+				if (info.IsAppIcon)
 				{
-					info.ForegroundFilename = info.Filename;
-					info.Filename = null;
+					// make sure the image is a foreground if this is an icon
+					if (string.IsNullOrEmpty(info.ForegroundFilename))
+					{
+						info.ForegroundFilename = info.Filename;
+						info.Filename = null;
+					}
+
+					ApplyPlatformForegroundScale(image, info);
 				}
 
 				// TODO:
@@ -144,5 +149,38 @@ public static List<ResizeImageInfo> Parse(IEnumerable<ITaskItem>? images)
 
 			return r;
 		}
+
+		static void SetPlatformForegroundScale(ITaskItem image, string property, ResizeImageInfo info)
+		{
+			if (double.TryParse(image.GetMetadata(property), NumberStyles.Number,
+					CultureInfo.InvariantCulture, out var result))
+			{
+				info.ForegroundScale = result;
+			}
+		}
+
+
+		static void ApplyPlatformForegroundScale(ITaskItem image, ResizeImageInfo info)
+		{
+			switch (ResizetizeImages_v0.TargetPlatform)
+			{
+				case "android":
+					SetPlatformForegroundScale(image, "AndroidForegroundScale", info);
+					break;
+				case "ios" :
+					SetPlatformForegroundScale(image, "IOSForegroundScale", info);
+					break;
+				case "uwp":
+					SetPlatformForegroundScale(image, "WindowsForegroundScale", info);
+					break;
+				case "wasm":
+					SetPlatformForegroundScale(image, "WasmForegroundScale", info);
+					break;
+				//skia
+				case "netstandard" or "wpf":
+					SetPlatformForegroundScale(image, "SkiaForegroundScale", info);
+					break;
+			}
+		}
 	}
 }

src/Resizetizer/src/ResizetizeImages.cs

@@ -25,6 +25,8 @@ public class ResizetizeImages_v0 : UnoAsyncTask, ILogger
 
 		public string InputsFile { get; set; }
 
+		internal static string TargetPlatform { get; private set; }
+
 		public ITaskItem[] Images { get; set; }
 
 		[Output]
@@ -45,6 +47,7 @@ public class ResizetizeImages_v0 : UnoAsyncTask, ILogger
 
 		public override System.Threading.Tasks.Task ExecuteAsync()
 		{
+			TargetPlatform = PlatformType;
 			var images = ResizeImageInfo.Parse(Images);
 
 			var dpis = DpiPath.GetDpis();