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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
      5  * except in compliance with the License. You may obtain a copy of the License at
      6  *
      7  *      http://www.apache.org/licenses/LICENSE-2.0
      8  *
      9  * Unless required by applicable law or agreed to in writing, software distributed under the
     10  * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     11  * KIND, either express or implied. See the License for the specific language governing
     12  * permissions and limitations under the License.
     13  */
     14 
     15 package com.android.settingslib.graph;
     16 
     17 import android.content.Context;
     18 import android.content.res.TypedArray;
     19 import android.util.AttributeSet;
     20 import android.util.SparseIntArray;
     21 import android.view.Gravity;
     22 import android.view.LayoutInflater;
     23 import android.view.View;
     24 import android.widget.FrameLayout;
     25 import android.widget.LinearLayout;
     26 import android.widget.TextView;
     27 import com.android.settingslib.R;
     28 
     29 public class UsageView extends FrameLayout {
     30 
     31     private final UsageGraph mUsageGraph;
     32     private final TextView[] mLabels;
     33     private final TextView[] mBottomLabels;
     34 
     35     public UsageView(Context context, AttributeSet attrs) {
     36         super(context, attrs);
     37         LayoutInflater.from(context).inflate(R.layout.usage_view, this);
     38         mUsageGraph = (UsageGraph) findViewById(R.id.usage_graph);
     39         mLabels = new TextView[] {
     40                 (TextView) findViewById(R.id.label_bottom),
     41                 (TextView) findViewById(R.id.label_middle),
     42                 (TextView) findViewById(R.id.label_top),
     43         };
     44         mBottomLabels = new TextView[] {
     45                 (TextView) findViewById(R.id.label_start),
     46                 (TextView) findViewById(R.id.label_end),
     47         };
     48         TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.UsageView, 0, 0);
     49         if (a.hasValue(R.styleable.UsageView_sideLabels)) {
     50             setSideLabels(a.getTextArray(R.styleable.UsageView_sideLabels));
     51         }
     52         if (a.hasValue(R.styleable.UsageView_bottomLabels)) {
     53             setBottomLabels(a.getTextArray(R.styleable.UsageView_bottomLabels));
     54         }
     55         if (a.hasValue(R.styleable.UsageView_textColor)) {
     56             int color = a.getColor(R.styleable.UsageView_textColor, 0);
     57             for (TextView v : mLabels) {
     58                 v.setTextColor(color);
     59             }
     60             for (TextView v : mBottomLabels) {
     61                 v.setTextColor(color);
     62             }
     63         }
     64         if (a.hasValue(R.styleable.UsageView_android_gravity)) {
     65             int gravity = a.getInt(R.styleable.UsageView_android_gravity, 0);
     66             if (gravity == Gravity.END) {
     67                 LinearLayout layout = (LinearLayout) findViewById(R.id.graph_label_group);
     68                 LinearLayout labels = (LinearLayout) findViewById(R.id.label_group);
     69                 // Swap the children order.
     70                 layout.removeView(labels);
     71                 layout.addView(labels);
     72                 // Set gravity.
     73                 labels.setGravity(Gravity.END);
     74                 // Swap the bottom space order.
     75                 LinearLayout bottomLabels = (LinearLayout) findViewById(R.id.bottom_label_group);
     76                 View bottomSpace = bottomLabels.findViewById(R.id.bottom_label_space);
     77                 bottomLabels.removeView(bottomSpace);
     78                 bottomLabels.addView(bottomSpace);
     79             } else if (gravity != Gravity.START) {
     80                 throw new IllegalArgumentException("Unsupported gravity " + gravity);
     81             }
     82         }
     83         mUsageGraph.setAccentColor(a.getColor(R.styleable.UsageView_android_colorAccent, 0));
     84     }
     85 
     86     public void clearPaths() {
     87         mUsageGraph.clearPaths();
     88     }
     89 
     90     public void addPath(SparseIntArray points) {
     91         mUsageGraph.addPath(points);
     92     }
     93 
     94     public void configureGraph(int maxX, int maxY, boolean showProjection, boolean projectUp) {
     95         mUsageGraph.setMax(maxX, maxY);
     96         mUsageGraph.setShowProjection(showProjection, projectUp);
     97     }
     98 
     99     public void setAccentColor(int color) {
    100         mUsageGraph.setAccentColor(color);
    101     }
    102 
    103     public void setDividerLoc(int dividerLoc) {
    104         mUsageGraph.setDividerLoc(dividerLoc);
    105     }
    106 
    107     public void setDividerColors(int middleColor, int topColor) {
    108         mUsageGraph.setDividerColors(middleColor, topColor);
    109     }
    110 
    111     public void setSideLabelWeights(float before, float after) {
    112         setWeight(R.id.space1, before);
    113         setWeight(R.id.space2, after);
    114     }
    115 
    116     private void setWeight(int id, float weight) {
    117         View v = findViewById(id);
    118         LinearLayout.LayoutParams params = (LinearLayout.LayoutParams) v.getLayoutParams();
    119         params.weight = weight;
    120         v.setLayoutParams(params);
    121     }
    122 
    123     public void setSideLabels(CharSequence[] labels) {
    124         if (labels.length != mLabels.length) {
    125             throw new IllegalArgumentException("Invalid number of labels");
    126         }
    127         for (int i = 0; i < mLabels.length; i++) {
    128             mLabels[i].setText(labels[i]);
    129         }
    130     }
    131 
    132     public void setBottomLabels(CharSequence[] labels) {
    133         if (labels.length != mBottomLabels.length) {
    134             throw new IllegalArgumentException("Invalid number of labels");
    135         }
    136         for (int i = 0; i < mBottomLabels.length; i++) {
    137             mBottomLabels[i].setText(labels[i]);
    138         }
    139     }
    140 
    141 }
    142