Add settings for variable font axes in typography scheme

data/themes/src/main/java/de/mm20/launcher2/themes/typography/FontManager.kt

@@ -1,11 +1,6 @@
 package de.mm20.launcher2.themes.typography
 
 import android.content.Context
-import android.graphics.Typeface
-import android.graphics.fonts.SystemFonts
-import android.os.Build
-import android.util.Log
-import androidx.core.graphics.TypefaceCompat
 
 data class FontList(
     val builtIn: List<FontFamily>,
@@ -14,6 +9,14 @@ data class FontList(
     val system: List<FontFamily>,
 )
 
+data class VariableFontAxis(
+    val name: String,
+    val label: String,
+    val range: ClosedFloatingPointRange<Float>,
+    val step: Float,
+    val defaultValue: Float,
+)
+
 class FontManager(
     private val context: Context
 ) {
@@ -24,12 +27,12 @@ class FontManager(
             .getIdentifier("config_bodyFontFamily", "string", "android")
 
         val deviceHeadlineExists = deviceHeadlineResId != 0 &&
-            context.resources.getString(deviceHeadlineResId).isNotBlank()
+                context.resources.getString(deviceHeadlineResId).isNotBlank()
 
         val deviceBodyExists = deviceBodyResId != 0 &&
-            context.resources.getString(deviceBodyResId).isNotBlank()
+                context.resources.getString(deviceBodyResId).isNotBlank()
         return FontList(
-            builtIn = listOf(FontFamily.LauncherDefault, FontFamily.LauncherDefaultRound),
+            builtIn = listOf(FontFamily.LauncherDefault()),
             generic = listOf(
                 FontFamily.SansSerif,
                 FontFamily.Serif,
@@ -42,4 +45,16 @@ class FontManager(
             system = emptyList(),
         )
     }
+
+    fun getFontSettings(font: FontFamily.VariableFontFamily): List<VariableFontAxis> {
+        if (font is FontFamily.LauncherDefault) {
+            return listOf(
+                VariableFontAxis("wdth", "Width", 25f..151f, 1f, 100f),
+                VariableFontAxis("ROND", "Roundness", 0f..100f, 1f, 0f),
+                VariableFontAxis("GRAD", "Grade", 0f..100f, 1f, 0f),
+            )
+        }
+
+        return emptyList()
+    }
 }

data/themes/src/main/java/de/mm20/launcher2/themes/typography/Typography.kt

@@ -181,13 +181,18 @@ data class TextStyle<out W : FontWeight?>(
 
 @Serializable
 sealed interface FontFamily {
-    @Serializable
-    @SerialName("launcher_default")
-    data object LauncherDefault : FontFamily
+
+    sealed interface VariableFontFamily {
+        val settings: Map<String, Float>
+            get() = emptyMap()
+    }
 
     @Serializable
-    @SerialName("launcher_default_round")
-    data object LauncherDefaultRound : FontFamily
+    @SerialName("launcher_default")
+    data class LauncherDefault(
+        override val settings: Map<String, Float> = emptyMap()
+    ) : FontFamily, VariableFontFamily
+
 
     @Serializable
     @SerialName("device_headline")

data/themes/src/main/java/de/mm20/launcher2/themes/typography/TypographyRepository.kt

@@ -78,8 +78,8 @@ class TypographyRepository(
             builtIn = true,
             name = "Google Sans",
             fonts = mapOf(
-                "brand" to FontFamily.LauncherDefault,
-                "plain" to FontFamily.LauncherDefault,
+                "brand" to FontFamily.LauncherDefault(),
+                "plain" to FontFamily.LauncherDefault(),
             ),
             styles = DefaultTextStyles,
             emphasizedStyles = DefaultEmphasizedTextStyles,
@@ -91,8 +91,8 @@ class TypographyRepository(
             builtIn = true,
             name = "Google Sans (Rounded)",
             fonts = mapOf(
-                "brand" to FontFamily.LauncherDefaultRound,
-                "plain" to FontFamily.LauncherDefaultRound,
+                "brand" to FontFamily.LauncherDefault(mapOf("ROND" to 100f)),
+                "plain" to FontFamily.LauncherDefault(mapOf("ROND" to 100f)),
             ),
             styles = DefaultTextStyles,
             emphasizedStyles = DefaultEmphasizedTextStyles,