1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
/*
* Copyright (C) 2014 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.systemui.qs;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.RectF;
import android.util.AttributeSet;
import android.view.View;
import com.android.systemui.R;
public class DataUsageGraph extends View {
private final int mTrackColor;
private final int mUsageColor;
private final int mOverlimitColor;
private final int mWarningColor;
private final int mMarkerWidth;
private final RectF mTmpRect = new RectF();
private final Paint mTmpPaint = new Paint();
private long mLimitLevel;
private long mWarningLevel;
private long mUsageLevel;
private long mMaxLevel;
public DataUsageGraph(Context context, AttributeSet attrs) {
super(context, attrs);
final Resources res = context.getResources();
mTrackColor = context.getColor(R.color.data_usage_graph_track);
mUsageColor = context.getColor(R.color.system_accent_color);
mOverlimitColor = context.getColor(R.color.system_warning_color);
mWarningColor = context.getColor(R.color.data_usage_graph_warning);
mMarkerWidth = res.getDimensionPixelSize(R.dimen.data_usage_graph_marker_width);
}
public void setLevels(long limitLevel, long warningLevel, long usageLevel) {
mLimitLevel = Math.max(0, limitLevel);
mWarningLevel = Math.max(0, warningLevel);
mUsageLevel = Math.max(0, usageLevel);
mMaxLevel = Math.max(Math.max(Math.max(mLimitLevel, mWarningLevel), mUsageLevel), 1);
postInvalidate();
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
final RectF r = mTmpRect;
final Paint p = mTmpPaint;
final int w = getWidth();
final int h = getHeight();
final boolean overLimit = mLimitLevel > 0 && mUsageLevel > mLimitLevel;
float usageRight = w * (mUsageLevel / (float) mMaxLevel);
if (overLimit) {
// compute the gap
usageRight = w * (mLimitLevel / (float) mMaxLevel) - (mMarkerWidth / 2);
usageRight = Math.min(Math.max(usageRight, mMarkerWidth), w - mMarkerWidth * 2);
// draw overlimit
r.set(usageRight + mMarkerWidth, 0, w, h);
p.setColor(mOverlimitColor);
canvas.drawRect(r, p);
} else {
// draw track
r.set(0, 0, w, h);
p.setColor(mTrackColor);
canvas.drawRect(r, p);
}
// draw usage
r.set(0, 0, usageRight, h);
p.setColor(mUsageColor);
canvas.drawRect(r, p);
// draw warning marker
float warningLeft = w * (mWarningLevel / (float) mMaxLevel) - mMarkerWidth / 2;
warningLeft = Math.min(Math.max(warningLeft, 0), w - mMarkerWidth);
r.set(warningLeft, 0, warningLeft + mMarkerWidth, h);
p.setColor(mWarningColor);
canvas.drawRect(r, p);
}
}
|
