diff options
Diffstat (limited to 'src/com/android/launcher3/Utilities.java')
-rw-r--r-- | src/com/android/launcher3/Utilities.java | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java index 207a7d4af..54e7dd2bc 100644 --- a/src/com/android/launcher3/Utilities.java +++ b/src/com/android/launcher3/Utilities.java @@ -28,6 +28,7 @@ import android.content.pm.PackageManager.NameNotFoundException; import android.content.pm.ResolveInfo; import android.content.res.Resources; import android.graphics.Bitmap; +import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Matrix; import android.graphics.Paint; @@ -51,7 +52,7 @@ import android.view.View; import android.view.accessibility.AccessibilityEvent; import android.view.accessibility.AccessibilityManager; -import com.android.launcher3.config.ProviderConfig; +import com.android.launcher3.config.FeatureFlags; import java.io.ByteArrayOutputStream; import java.io.Closeable; @@ -61,7 +62,6 @@ import java.lang.reflect.Method; import java.util.Collection; import java.util.HashSet; import java.util.Locale; -import java.util.Set; import java.util.concurrent.Executor; import java.util.concurrent.LinkedBlockingQueue; import java.util.concurrent.ThreadPoolExecutor; @@ -570,7 +570,7 @@ public final class Utilities { try { c.close(); } catch (IOException e) { - if (ProviderConfig.IS_DOGFOOD_BUILD) { + if (FeatureFlags.IS_DOGFOOD_BUILD) { Log.d(TAG, "Error closing", e); } } @@ -646,4 +646,28 @@ public final class Utilities { hashSet.add(elem); return hashSet; } + + /** + * @return creates a new alpha mask bitmap out of an existing bitmap + */ + public static Bitmap convertToAlphaMask(Bitmap b, float applyAlpha) { + Bitmap a = Bitmap.createBitmap(b.getWidth(), b.getHeight(), Bitmap.Config.ALPHA_8); + Canvas c = new Canvas(a); + Paint paint = new Paint(); + paint.setAlpha((int) (255f * applyAlpha)); + c.drawBitmap(b, 0f, 0f, paint); + return a; + } + + /** + * @return a new white 1x1 bitmap with ALPHA_8 + */ + public static Bitmap createOnePixBitmap() { + Bitmap a = Bitmap.createBitmap(1, 1, Bitmap.Config.ALPHA_8); + Canvas c = new Canvas(a); + Paint paint = new Paint(); + paint.setColor(Color.WHITE); + c.drawPaint(paint); + return a; + } } |