api-impl: misc stubs and fixes for several apps including F-Droid and AuroraStore

src/api-impl/android/graphics/Bitmap.java

@@ -217,6 +217,10 @@ public final class Bitmap {
 
 	public void setPremultiplied(boolean premultiplied) {}
 
+	public Bitmap extractAlpha() {
+		return this.copy(config, mutable);
+	}
+
 	@SuppressWarnings("deprecation")
 	@Override
 	protected void finalize() throws Throwable {

src/api-impl/android/graphics/Canvas.java

@@ -482,6 +482,10 @@ public class Canvas {
 		return false;
 	}
 
+	public boolean clipRect(RectF rect, Region.Op op) {
+		return false;
+	}
+
 	public void drawArc(float left, float top, float right, float bottom, float startAngle, float sweepAngle, boolean includeCenter, Paint paint) {}
 
 	public void drawRoundRect(float left, float top, float right, float bottom, float rx, float ry, Paint paint) {}

src/api-impl/android/graphics/Color.java

@@ -158,4 +158,25 @@ public class Color {
 		}
 		hsv[2] = max;
 	}
+
+	public static int HSVToColor(float[] hsv) {
+		float h = hsv[0];
+		float s = hsv[1];
+		float v_ = hsv[2];
+		int hi = (int)Math.floor(h / 60) % 6;
+		float f = (h / 60 - (float)Math.floor(h / 60)) * 6;
+		int p = (int)(v_ * (1 - s) * 255.f + 0.5f);
+		int q = (int)(v_ * (1 - f * s) * 255.f + 0.5f);
+		int t = (int)(v_ * (1 - (1 - f) * s) * 255.f + 0.5f);
+		int v = (int)(v_ * 255.f + 0.5f);
+		switch (hi) {
+			case 0: return Color.rgb(v, t, p);
+			case 1: return Color.rgb(q, v, p);
+			case 2: return Color.rgb(p, v, t);
+			case 3: return Color.rgb(p, q, v);
+			case 4: return Color.rgb(t, p, v);
+			case 5: return Color.rgb(v, p, q);
+		}
+		return 0;
+	}
 }

src/api-impl/android/graphics/GskCanvas.java

@@ -53,7 +53,8 @@ public class GskCanvas extends Canvas {
 
 	@Override
 	public void drawPath(Path path, Paint paint) {
-		native_drawPath(snapshot, path.getGskPath(), paint != null ? paint.paint : default_paint.paint);
+		if (path != null)
+			native_drawPath(snapshot, path.getGskPath(), paint != null ? paint.paint : default_paint.paint);
 	}
 
 	@Override

src/api-impl/android/graphics/Path.java

@@ -191,6 +191,12 @@ public class Path {
 		addPath(src);
 	}
 
+	public void offset(float dx, float dy) {
+		Matrix matrix = new Matrix();
+		matrix.setTranslate(dx, dy);
+		transform(matrix);
+	}
+
 	@SuppressWarnings("deprecation")
 	@Override
 	protected void finalize() throws Throwable {

src/api-impl/android/graphics/drawable/Drawable.java

@@ -24,6 +24,7 @@ import android.graphics.PorterDuff;
 import android.graphics.PorterDuffColorFilter;
 import android.graphics.Rect;
 import android.util.AttributeSet;
+import android.util.LayoutDirection;
 import android.util.TypedValue;
 
 public class Drawable {
@@ -323,6 +324,10 @@ public class Drawable {
 
 	public void setHotspot(float x, float y) {}
 
+	public int getLayoutDirection() {
+		return LayoutDirection.LTR;
+	}
+
 	protected static native long native_paintable_from_path(String path);
 	protected native long native_constructor();
 	protected native void native_invalidate(long paintable);

src/api-impl/android/graphics/drawable/Icon.java

@@ -1,8 +1,14 @@
 package android.graphics.drawable;
 
+import android.graphics.Bitmap;
+
 public class Icon {
 
 	public static Icon createWithResource(String packageName, int resourceId) {
 		return null;
 	}
+
+	public static Icon createWithBitmap(Bitmap bitmap) {
+		return null;
+	}
 }