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/*
* Copyright (C) 2016 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.settings.fuelgauge;
import android.annotation.Nullable;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.util.SparseIntArray;
import android.view.View;
public class BatteryActiveView extends View {
private final Paint mPaint = new Paint();
private BatteryActiveProvider mProvider;
public BatteryActiveView(Context context, @Nullable AttributeSet attrs) {
super(context, attrs);
}
public void setProvider(BatteryActiveProvider provider) {
mProvider = provider;
if (getWidth() != 0) {
postInvalidate();
}
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
if (getWidth() != 0) {
postInvalidate();
}
}
@Override
protected void onDraw(Canvas canvas) {
if (mProvider == null) {
return;
}
SparseIntArray array = mProvider.getColorArray();
float period = mProvider.getPeriod();
for (int i = 0; i < array.size() - 1; i++) {
drawColor(canvas, array.keyAt(i), array.keyAt(i + 1), array.valueAt(i), period);
}
}
private void drawColor(Canvas canvas, int start, int end, int color, float period) {
if (color == 0) {
return;
}
mPaint.setColor(color);
canvas.drawRect(start / period * getWidth(), 0, end / period * getWidth(), getHeight(),
mPaint);
}
public interface BatteryActiveProvider {
boolean hasData();
long getPeriod();
SparseIntArray getColorArray();
}
}
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