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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;
}
}
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