| /* |
| * 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); |
| } |
| } |