ab2d8d3a38
Chart of network usage over time, with draggable "sweep" bars for inspection region and warning/limits. Talks with NetworkStatsService for live data, and updates list of application usage as inspection region changes. Change-Id: I2a406e6776daf7d74143c07ec683c10fe711c277
80 lines
2.4 KiB
Java
80 lines
2.4 KiB
Java
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.widget;
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import android.content.Context;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Paint;
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import android.graphics.Paint.Style;
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import android.view.View;
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import com.google.common.base.Preconditions;
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/**
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* Background of {@link ChartView} that renders grid lines as requested by
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* {@link ChartAxis#getTickPoints()}.
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*/
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public class ChartGridView extends View {
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private final ChartAxis mHoriz;
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private final ChartAxis mVert;
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private final Paint mPaintHoriz;
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private final Paint mPaintVert;
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public ChartGridView(Context context, ChartAxis horiz, ChartAxis vert) {
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super(context);
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mHoriz = Preconditions.checkNotNull(horiz, "missing horiz");
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mVert = Preconditions.checkNotNull(vert, "missing vert");
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setWillNotDraw(false);
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// TODO: convert these colors to resources
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mPaintHoriz = new Paint();
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mPaintHoriz.setColor(Color.parseColor("#667bb5"));
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mPaintHoriz.setStrokeWidth(2.0f);
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mPaintHoriz.setStyle(Style.STROKE);
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mPaintHoriz.setAntiAlias(true);
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mPaintVert = new Paint();
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mPaintVert.setColor(Color.parseColor("#28262c"));
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mPaintVert.setStrokeWidth(1.0f);
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mPaintVert.setStyle(Style.STROKE);
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mPaintVert.setAntiAlias(true);
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}
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@Override
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protected void onDraw(Canvas canvas) {
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final int width = getWidth();
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final int height = getHeight();
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final float[] vertTicks = mVert.getTickPoints();
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for (float y : vertTicks) {
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canvas.drawLine(0, y, width, y, mPaintVert);
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}
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final float[] horizTicks = mHoriz.getTickPoints();
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for (float x : horizTicks) {
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canvas.drawLine(x, 0, x, height, mPaintHoriz);
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}
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canvas.drawRect(0, 0, width, height, mPaintHoriz);
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}
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}
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