1 files changed, 97 insertions, 0 deletions
diff --git a/java/com/android/dialer/util/DrawableConverter.java b/java/com/android/dialer/util/DrawableConverter.java
new file mode 100644
index 000000000..5670315c9
--- /dev/null
+++ b/java/com/android/dialer/util/DrawableConverter.java
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+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.dialer.util;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.v4.graphics.drawable.RoundedBitmapDrawable;
+import android.support.v4.graphics.drawable.RoundedBitmapDrawableFactory;
+import com.android.dialer.common.LogUtil;
+
+/** Provides utilities for bitmaps and drawables. */
+public class DrawableConverter {
+
+  private DrawableConverter() {}
+
+  /** Converts the provided drawable to a bitmap using the drawable's intrinsic width and height. */
+  @Nullable
+  public static Bitmap drawableToBitmap(@Nullable Drawable drawable) {
+    return drawableToBitmap(drawable, 0, 0);
+  }
+
+  /**
+   * Converts the provided drawable to a bitmap with the specified width and height.
+   *
+   * <p>If both width and height are 0, the drawable's intrinsic width and height are used (but in
+   * that case {@link #drawableToBitmap(Drawable)} should be used).
+   */
+  @Nullable
+  public static Bitmap drawableToBitmap(@Nullable Drawable drawable, int width, int height) {
+    if (drawable == null) {
+      return null;
+    }
+
+    Bitmap bitmap;
+    if (drawable instanceof BitmapDrawable) {
+      bitmap = ((BitmapDrawable) drawable).getBitmap();
+    } else {
+      if (width > 0 || height > 0) {
+        bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
+      } else if (drawable.getIntrinsicWidth() <= 0 || drawable.getIntrinsicHeight() <= 0) {
+        // Needed for drawables that are just a colour.
+        bitmap = Bitmap.createBitmap(1, 1, Bitmap.Config.ARGB_8888);
+      } else {
+        bitmap =
+            Bitmap.createBitmap(
+                drawable.getIntrinsicWidth(),
+                drawable.getIntrinsicHeight(),
+                Bitmap.Config.ARGB_8888);
+      }
+
+      LogUtil.i(
+          "DrawableConverter.drawableToBitmap",
+          "created bitmap with width: %d, height: %d",
+          bitmap.getWidth(),
+          bitmap.getHeight());
+
+      Canvas canvas = new Canvas(bitmap);
+      drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
+      drawable.draw(canvas);
+    }
+    return bitmap;
+  }
+
+  @Nullable
+  public static Drawable getRoundedDrawable(
+      @NonNull Context context, @Nullable Drawable photo, int width, int height) {
+    Bitmap bitmap = drawableToBitmap(photo);
+    if (bitmap != null) {
+      Bitmap scaledBitmap = Bitmap.createScaledBitmap(bitmap, width, height, false);
+      RoundedBitmapDrawable drawable =
+          RoundedBitmapDrawableFactory.create(context.getResources(), scaledBitmap);
+      drawable.setAntiAlias(true);
+      drawable.setCornerRadius(drawable.getIntrinsicHeight() / 2);
+      return drawable;
+    }
+    return null;
+  }
+}