Home | History | Annotate | Download | only in fuelgauge 
      1 /*
      2  * Copyright (C) 2009 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.settings.fuelgauge;
     18 
     19 import android.content.Context;
     20 import android.graphics.drawable.ColorDrawable;
     21 import android.graphics.drawable.Drawable;
     22 import android.support.v7.preference.PreferenceViewHolder;
     23 import android.widget.ImageView;
     24 import android.widget.LinearLayout;
     25 import android.widget.TextView;
     26 import com.android.settings.R;
     27 import com.android.settings.TintablePreference;
     28 import com.android.settings.Utils;
     29 
     30 /**
     31  * Custom preference for displaying power consumption as a bar and an icon on
     32  * the left for the subsystem/app type.
     33  */
     34 public class PowerGaugePreference extends TintablePreference {
     35     private final int mIconSize;
     36 
     37     private BatteryEntry mInfo;
     38     private CharSequence mContentDescription;
     39     private CharSequence mProgress;
     40 
     41     public PowerGaugePreference(Context context, Drawable icon, CharSequence contentDescription,
     42             BatteryEntry info) {
     43         super(context, null);
     44         setIcon(icon != null ? icon : new ColorDrawable(0));
     45         setWidgetLayoutResource(R.layout.preference_widget_summary);
     46         mInfo = info;
     47         mContentDescription = contentDescription;
     48         mIconSize = context.getResources().getDimensionPixelSize(R.dimen.app_icon_size);
     49     }
     50 
     51     public void setContentDescription(String name) {
     52         mContentDescription = name;
     53         notifyChanged();
     54     }
     55 
     56     public void setPercent(double percentOfMax, double percentOfTotal) {
     57         mProgress = Utils.formatPercentage((int) (percentOfTotal + 0.5));
     58         notifyChanged();
     59     }
     60 
     61     BatteryEntry getInfo() {
     62         return mInfo;
     63     }
     64 
     65     @Override
     66     public void onBindViewHolder(PreferenceViewHolder view) {
     67         super.onBindViewHolder(view);
     68         ImageView icon = (ImageView) view.findViewById(android.R.id.icon);
     69         icon.setLayoutParams(new LinearLayout.LayoutParams(mIconSize, mIconSize));
     70 
     71         ((TextView) view.findViewById(R.id.widget_summary)).setText(mProgress);
     72         if (mContentDescription != null) {
     73             final TextView titleView = (TextView) view.findViewById(android.R.id.title);
     74             titleView.setContentDescription(mContentDescription);
     75         }
     76     }
     77 }
     78