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/*
* Copyright (C) 2017 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.settingslib.graph;
import android.annotation.NonNull;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffColorFilter;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.LayerDrawable;
import android.view.Gravity;
import androidx.annotation.VisibleForTesting;
import com.android.settingslib.R;
import com.android.settingslib.Utils;
/**
* LayerDrawable contains the bluetooth device icon and battery gauge icon
*/
public class BluetoothDeviceLayerDrawable extends LayerDrawable {
private BluetoothDeviceLayerDrawableState mState;
private BluetoothDeviceLayerDrawable(@NonNull Drawable[] layers) {
super(layers);
}
/**
* Create the {@link LayerDrawable} that contains bluetooth device icon and battery icon.
* This is a horizontal layout drawable while bluetooth icon at start and battery icon at end.
*
* @param context used to get the spec for icon
* @param resId represents the bluetooth device drawable
* @param batteryLevel the battery level for bluetooth device
*/
public static BluetoothDeviceLayerDrawable createLayerDrawable(Context context, int resId,
int batteryLevel) {
return createLayerDrawable(context, resId, batteryLevel, 1 /*iconScale*/);
}
/**
* Create the {@link LayerDrawable} that contains bluetooth device icon and battery icon.
* This is a horizontal layout drawable while bluetooth icon at start and battery icon at end.
*
* @param context used to get the spec for icon
* @param resId represents the bluetooth device drawable
* @param batteryLevel the battery level for bluetooth device
* @param iconScale the ratio of height between battery icon and bluetooth icon
*/
public static BluetoothDeviceLayerDrawable createLayerDrawable(Context context, int resId,
int batteryLevel, float iconScale) {
final Drawable deviceDrawable = context.getDrawable(resId);
final BatteryMeterDrawable batteryDrawable = new BatteryMeterDrawable(context,
context.getColor(R.color.meter_background_color), batteryLevel);
final int pad = context.getResources().getDimensionPixelSize(R.dimen.bt_battery_padding);
batteryDrawable.setPadding(pad, pad, pad, pad);
final BluetoothDeviceLayerDrawable drawable = new BluetoothDeviceLayerDrawable(
new Drawable[]{deviceDrawable, batteryDrawable});
// Set the bluetooth icon at the left
drawable.setLayerGravity(0 /* index of deviceDrawable */, Gravity.START);
// Set battery icon to the right of the bluetooth icon
drawable.setLayerInsetStart(1 /* index of batteryDrawable */,
deviceDrawable.getIntrinsicWidth());
drawable.setLayerInsetTop(1 /* index of batteryDrawable */,
(int) (deviceDrawable.getIntrinsicHeight() * (1 - iconScale)));
drawable.setConstantState(context, resId, batteryLevel, iconScale);
return drawable;
}
public void setConstantState(Context context, int resId, int batteryLevel, float iconScale) {
mState = new BluetoothDeviceLayerDrawableState(context, resId, batteryLevel, iconScale);
}
@Override
public ConstantState getConstantState() {
return mState;
}
/**
* Battery gauge icon with new spec.
*/
@VisibleForTesting
static class BatteryMeterDrawable extends BatteryMeterDrawableBase {
private final float mAspectRatio;
@VisibleForTesting
int mFrameColor;
public BatteryMeterDrawable(Context context, int frameColor, int batteryLevel) {
super(context, frameColor);
final Resources resources = context.getResources();
mButtonHeightFraction = resources.getFraction(
R.fraction.bt_battery_button_height_fraction, 1, 1);
mAspectRatio = resources.getFraction(R.fraction.bt_battery_ratio_fraction, 1, 1);
final int tintColor = Utils.getColorAttrDefaultColor(context,
android.R.attr.colorControlNormal);
setColorFilter(new PorterDuffColorFilter(tintColor, PorterDuff.Mode.SRC_IN));
setBatteryLevel(batteryLevel);
mFrameColor = frameColor;
}
@Override
protected float getAspectRatio() {
return mAspectRatio;
}
@Override
protected float getRadiusRatio() {
// Remove the round edge
return 0;
}
}
/**
* {@link ConstantState} to restore the {@link BluetoothDeviceLayerDrawable}
*/
private static class BluetoothDeviceLayerDrawableState extends ConstantState {
Context context;
int resId;
int batteryLevel;
float iconScale;
public BluetoothDeviceLayerDrawableState(Context context, int resId,
int batteryLevel, float iconScale) {
this.context = context;
this.resId = resId;
this.batteryLevel = batteryLevel;
this.iconScale = iconScale;
}
@Override
public Drawable newDrawable() {
return createLayerDrawable(context, resId, batteryLevel, iconScale);
}
@Override
public int getChangingConfigurations() {
return 0;
}
}
}
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