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/*
* Copyright (C) 2023 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.launcher3.icons;
import android.content.Context;
import android.content.res.Resources;
import android.content.res.Resources.Theme;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.DrawableWrapper;
import androidx.annotation.NonNull;
/**
* A drawable used for drawing user badge. It draws a circle around the actual badge,
* and has support for theming.
*/
public class UserBadgeDrawable extends DrawableWrapper {
private static final float VIEWPORT_SIZE = 24;
private static final float CENTER = VIEWPORT_SIZE / 2;
private static final float BG_RADIUS = 11;
private static final float SHADOW_RADIUS = 11.5f;
private static final float SHADOW_OFFSET_Y = 0.25f;
private static final int SHADOW_COLOR = 0x11000000;
private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
private final int mBgColor;
private boolean mShouldDrawBackground = true;
public UserBadgeDrawable(Context context, int badgeRes, boolean isThemed) {
super(context.getDrawable(badgeRes));
if (isThemed) {
mutate();
setTint(context.getColor(R.color.themed_badge_icon_color));
mBgColor = context.getColor(R.color.themed_badge_icon_background_color);
} else {
mBgColor = Color.WHITE;
}
}
private UserBadgeDrawable(Drawable base, int bgColor, boolean shouldDrawBackground) {
super(base);
mBgColor = bgColor;
mShouldDrawBackground = shouldDrawBackground;
}
@Override
public void draw(@NonNull Canvas canvas) {
if (mShouldDrawBackground) {
Rect b = getBounds();
int saveCount = canvas.save();
canvas.translate(b.left, b.top);
canvas.scale(b.width() / VIEWPORT_SIZE, b.height() / VIEWPORT_SIZE);
mPaint.setColor(SHADOW_COLOR);
canvas.drawCircle(CENTER, CENTER + SHADOW_OFFSET_Y, SHADOW_RADIUS, mPaint);
mPaint.setColor(mBgColor);
canvas.drawCircle(CENTER, CENTER, BG_RADIUS, mPaint);
canvas.restoreToCount(saveCount);
}
super.draw(canvas);
}
public void setShouldDrawBackground(boolean shouldDrawBackground) {
mutate();
mShouldDrawBackground = shouldDrawBackground;
}
@Override
public ConstantState getConstantState() {
return new MyConstantState(
getDrawable().getConstantState(), mBgColor, mShouldDrawBackground);
}
private static class MyConstantState extends ConstantState {
private final ConstantState mBase;
private final int mBgColor;
private final boolean mShouldDrawBackground;
public MyConstantState(ConstantState base, int bgColor, boolean shouldDrawBackground) {
mBase = base;
mBgColor = bgColor;
mShouldDrawBackground = shouldDrawBackground;
}
@Override
public int getChangingConfigurations() {
return mBase.getChangingConfigurations();
}
@Override
@NonNull
public Drawable newDrawable() {
return new UserBadgeDrawable(mBase.newDrawable(), mBgColor, mShouldDrawBackground);
}
@Override
@NonNull
public Drawable newDrawable(Resources res) {
return new UserBadgeDrawable(mBase.newDrawable(res), mBgColor, mShouldDrawBackground);
}
@Override
@NonNull
public Drawable newDrawable(Resources res, Theme theme) {
return new UserBadgeDrawable(mBase.newDrawable(res, theme),
mBgColor, mShouldDrawBackground);
}
}
}
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