Delete proxy and total samples, which have bit-rotted.

samples/total/client/ClientChart.dart

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class ClientChart extends Chart {
-
-  static final List<String> _strokeColors =
-     const ["#ff0000", "#00ff00", "#0000ff", "#ffff00", "#ff00ff", "#00ffff", "#000000"];
-
-  CanvasElement _canvas;
-
-  ClientChart(this._canvas) : super() { }
-
-  void render() { }
-}
-
-class ClientLineChart extends ClientChart {
-
-  ClientLineChart(CanvasElement canvas) : super(canvas) {
-    _width = _canvas.width;
-    _height = _canvas.height;
-  }
-
-  void render() {
-    CanvasRenderingContext2D ctx = _canvas.getContext("2d");
-    ctx.setFillColor("#ffffff");
-    ctx.clearRect(0, 0, _width, _height);
-
-    int tickStep;
-    int tickMin;
-    int tickMax;
-
-    double range = _maxValue - _minValue;
-    if (range == 0) {
-      tickStep = 1;
-      int m = _minValue.floor().toInt();
-      tickMin = m - 5;
-      tickMax = m + 5;
-    } else {
-      double log10Range = Math.log(range) / Math.log(10.0);
-      tickStep = Math.pow(10.0, (log10Range).floor()).toInt() ~/ 2;
-      tickMin = (_minValue / tickStep).floor().toInt() * tickStep;
-      tickMax = (_maxValue / tickStep).floor().toInt() * tickStep;
-    }
-
-    int padding = 30;
-
-    ctx.font = "Gill Sans 8px";
-    ctx.lineWidth = 1.0;
-
-    ctx.setStrokeColor("#000000");
-    ctx.beginPath();
-    ctx.moveTo(padding, padding);
-    ctx.lineTo(padding, height - padding);
-    ctx.lineTo(width - padding, height - padding);
-    ctx.stroke();
-
-    int scaleY = (height - 2 * padding) ~/ range;
-    double zeroY = (height - padding) - ((0.0 - _minValue) * scaleY);
-    if (zeroY >= padding && zeroY <= height - padding) {
-      ctx.beginPath();
-      ctx.moveTo(padding, zeroY);
-      ctx.lineTo(width - padding, zeroY);
-      ctx.stroke();
-
-      double textWidth = ctx.measureText("0").width.toDouble();
-      ctx.fillText("0", padding - textWidth, zeroY);
-    }
-
-    int tickLen = 6;
-    for (int tick = tickMin; tick <= tickMax; tick += tickStep) {
-      double y = (height - padding) - ((tick - _minValue) * scaleY);
-      if (y >= padding && y <= height - padding) {
-        ctx.beginPath();
-        ctx.moveTo(padding - tickLen / 2, y);
-        ctx.lineTo(padding + tickLen / 2, y);
-        ctx.stroke();
-
-        String label = tick.toString();
-        double textWidth = ctx.measureText(label).width.toDouble();
-        ctx.fillText(label, padding - textWidth, y);
-      }
-    }
-
-    for (int tick = padding; tick <= width - padding; tick += 50) {
-      ctx.beginPath();
-      ctx.moveTo(tick, height - padding - tickLen / 2);
-      ctx.lineTo(tick, height - padding + tickLen / 2);
-      ctx.stroke();
-    }
-
-    for (int col = _firstCol; col <= _lastCol; col++) {
-      List<double> data = getSeries(col);
-      int scaleX = (width - 2 * padding) ~/ data.length;
-      scaleY = (height - 2 * padding) ~/ range;
-
-      ctx.setStrokeColor(_strokeColors[col - _firstCol]);
-      ctx.beginPath();
-
-      for (int row = 0; row < data.length; row++) {
-        double x = row * scaleX + padding;
-        double y = (height - padding) - ((data[row] - _minValue) * scaleY);
-        if (row == 0) {
-          ctx.moveTo(x, y);
-        } else {
-          ctx.lineTo(x, y);
-        }
-      }
-      ctx.stroke();
-    }
-  }
-}