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/*
* Copyright (C) 2014 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.internal.util;
import android.annotation.ColorInt;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.PorterDuff.Mode;
import android.graphics.drawable.Drawable;
import android.os.UserHandle;
import com.android.internal.R;
/**
* Helper class that generates default user icons.
*/
public class UserIcons {
private static final int[] USER_ICON_COLORS = {
R.color.user_icon_1,
R.color.user_icon_2,
R.color.user_icon_3,
R.color.user_icon_4,
R.color.user_icon_5,
R.color.user_icon_6,
R.color.user_icon_7,
R.color.user_icon_8
};
/**
* Converts a given drawable to a bitmap.
*/
public static Bitmap convertToBitmap(Drawable icon) {
return convertToBitmapAtSize(icon, icon.getIntrinsicWidth(), icon.getIntrinsicHeight());
}
/**
* Converts a given drawable to a bitmap, with width and height equal to the default icon size.
*/
public static Bitmap convertToBitmapAtUserIconSize(Resources res, Drawable icon) {
int size = res.getDimensionPixelSize(R.dimen.user_icon_size);
return convertToBitmapAtSize(icon, size, size);
}
private static Bitmap convertToBitmapAtSize(Drawable icon, int width, int height) {
if (icon == null) {
return null;
}
Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
icon.setBounds(0, 0, width, height);
icon.draw(canvas);
return bitmap;
}
/**
* Returns a default user icon for the given user.
*
* Note that for guest users, you should pass in {@code UserHandle.USER_NULL}.
*
* @param resources resources object to fetch user icon / color.
* @param userId the user id or {@code UserHandle.USER_NULL} for a non-user specific icon
* @param light whether we want a light icon (suitable for a dark background)
*/
public static Drawable getDefaultUserIcon(Resources resources, int userId, boolean light) {
int colorResId = light ? R.color.user_icon_default_white : R.color.user_icon_default_gray;
if (userId != UserHandle.USER_NULL) {
// Return colored icon instead
colorResId = USER_ICON_COLORS[userId % USER_ICON_COLORS.length];
}
return getDefaultUserIconInColor(resources, resources.getColor(colorResId, null));
}
/**
* Returns a default user icon in a particular color.
*
* @param resources resources object to fetch the user icon
* @param color the color used for the icon
*/
public static Drawable getDefaultUserIconInColor(Resources resources, @ColorInt int color) {
Drawable icon = resources.getDrawable(R.drawable.ic_account_circle, null).mutate();
icon.setColorFilter(color, Mode.SRC_IN);
icon.setBounds(0, 0, icon.getIntrinsicWidth(), icon.getIntrinsicHeight());
return icon;
}
/**
* Returns an array containing colors to be used for default user icons.
*/
public static int[] getUserIconColors(Resources resources) {
int[] result = new int[USER_ICON_COLORS.length];
for (int i = 0; i < result.length; i++) {
result[i] = resources.getColor(USER_ICON_COLORS[i], null);
}
return result;
}
}
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