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

samples/total/client/ServerChart.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.
-
-typedef void ImageCallback(String dataUrl);
-
-/**
- * A chart generated by the Google Chart API (see [http://code.google.com/apis/chart/image/]).
- */
-class ServerChart extends Chart {
-  String _params;
-  Window _window;
-
-  /**
-   * Construct a [ServerChart] with a given parameter string containing any parameters
-   * specific to a given chart type.
-   */
-  ServerChart(this._window, this._params) : super() {
-  }
-
-  void addParameter(String param) {
-    _params += param;
-  }
-
-  // TODO:  error handling
-  /**
-   * Request a chart from the Google Chart API server.  The resulting chart will be
-   * passed as a parameter to the [callback] function as a data URI suitable to be
-   * added as the [:src:] attribute of an [:img:] element.
-   */
-  void render(ImageCallback callback) {
-    // Use a random chart ID to avoid browser caching
-    int random = (Math.random() * 1000000).toInt();
-    String url = "http://chart.googleapis.com/chart?chid=${random}";
-
-    XMLHttpRequest request = new XMLHttpRequest();
-    request.on.readyStateChange.add((Event event) {
-      if (request.readyState == XMLHttpRequest.DONE && request.status == 200) {
-        callback("data:image/png;base64,${StringUtils.base64Encode(request.responseText)}");
-      }
-    });
-
-    StringBuffer sb = new StringBuffer();
-    // Chart type and unique params
-    sb.add(_params);
-
-    // Chart size
-    sb.add("&chs=${width}x${height}");
-
-    // Chart title
-    if (title != null) {
-      sb.add("&chtt=${title}"); // TODO: escaping
-    }
-
-    // Chart margins
-    sb.add("&chma=5,50,5,5");
-
-    // Labels
-    sb.add("&chdl=");
-    for (int col = _firstCol; col <= _lastCol; col++) {
-      sb.add(_seriesLabels[col - _firstCol]);
-      if (col < _lastCol) {
-        sb.add("|");
-      }
-    }
-
-    // Data values
-    sb.add("&chd=t:");
-    bool needPipe = false;
-    for (int col = _firstCol; col <= _lastCol; col++) {
-      List<double> values = getSeries(col);
-      bool needComma = false;
-      for (int i = 0; i < values.length; i++) {
-        if (needPipe) {
-          sb.add("|");
-          needPipe = false;
-        }
-        if (needComma) {
-          sb.add(",");
-        }
-        sb.add(values[i].toString());
-        needComma = true;
-      }
-      needPipe = true;
-    }
-    String data = sb.toString();
-
-    request.open("POST", url, true, null, null);
-    request.setRequestHeader("Content-type", "text/plain");
-    request.overrideMimeType("text/plain; charset=x-user-defined");
-    print("Chart request: ${data}");
-    request.send(data);
-  }
-}
-
-class ServerXYChart extends ServerChart {
-  ServerXYChart(Window window, String params) : super(window, params) {
-    // Chart axes
-    addParameter("&chxt=x,y");
-    // Chart colors
-    addParameter("&chco=ff0000,00ff00,0000ff,ffff00,ff00ff,00ffff,000000");
-  }
-
-  void setData(CellRange range) {
-    super.setData(range);
-
-    // Axis ranges
-    addParameter("&chxr=0,${_firstRow},${_lastRow}|1,${_minValue},${_maxValue}");
-
-    // Data range
-    addParameter("&chds=${_minValue},${_maxValue}");
-  }
-}
-
-class ServerLineChart extends ServerXYChart {
-  ServerLineChart(Window window) : super(window, "cht=lc") {
-    // Chart colors
-    addParameter("&chco=ff0000,00ff00,0000ff,ffff00,ff00ff,00ffff,000000");
-  }
-}
-
-// TODO:  horizontal charts require switched axes
-//class ServerHorizontalGroupedBarChart extends ServerChart {
-//  ServerHorizontalGroupedBarChart(Window window, CellRange range)
-//      : super(window, range, "cht=bhg") { }
-//}
-//
-//class ServerHorizontalStackedBarChart extends ServerChart {
-//  ServerHorizontalStackedBarChart(Window window, CellRange range)
-//      : super(window, range, "cht=bhs") { }
-//}
-//
-//class ServerHorizontalOverlappedBarChart extends ServerChart {
-//  ServerHorizontalOverlappedBarChart(Window window, CellRange range)
-//      : super(window, range, "cht=bho") { }
-//}
-
-class ServerPieChart extends ServerChart {
-  ServerPieChart(Window window, String param) : super(window, param) { }
-
-  void setData(CellRange range) {
-    super.setData(range);
-
-    StringBuffer labels = new StringBuffer();
-    labels.add("&chl=");
-
-    for (int col = _range.minCorner.col; col <= _range.maxCorner.col; col++) {
-      List<double> data = getSeries(col);
-      for (int i = 0; i < data.length; i++) {
-        double value = data[i];
-        String v = StringUtils.twoDecimals(value);
-        if (i > 0) {
-          labels.add("|");
-        }
-        labels.add(v);
-      }
-      if (col < _range.maxCorner.col) {
-        labels.add("|");
-      }
-    }
-    addParameter(labels.toString());
-  }
-}
-
-class Server2DPieChart extends ServerPieChart {
-  Server2DPieChart(Window window) : super(window, "cht=p") { }
-}
-
-class Server3DPieChart extends ServerPieChart {
-  Server3DPieChart(Window window) : super(window, "cht=p3") {
-    height = (width / 2.5).toInt();
-  }
-}
-
-class ServerConcentricPieChart extends ServerPieChart {
-  ServerConcentricPieChart(Window window) : super(window, "cht=pc") { }
-}
-
-class ServerVerticalGroupedBarChart extends ServerXYChart {
-  ServerVerticalGroupedBarChart(Window window) : super(window, "cht=bvg&chbh=a") { }
-}
-
-class ServerVerticalStackedBarChart extends ServerXYChart {
-  ServerVerticalStackedBarChart(Window window) : super(window, "cht=bvs&chbh=a") { }
-}
-
-class ServerVerticalOverlappedBarChart extends ServerXYChart {
-  ServerVerticalOverlappedBarChart(Window window) : super(window, "cht=bvo&chbh=a") { }
-}