X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=src%2Fdygraph-gviz.js;fp=src%2Fdygraph-gviz.js;h=d2d7a0d2c40bf7acbe78d7d0c050929a3559fdfa;hb=3123ca57f71d145bb5bcc4a2f754d3dff3225346;hp=0000000000000000000000000000000000000000;hpb=26ee953643ccd2d32e38e6b60b20e6a01c1dc9ba;p=dygraphs.git

diff --git a/src/dygraph-gviz.js b/src/dygraph-gviz.js
new file mode 100644
index 0000000..d2d7a0d
--- /dev/null
+++ b/src/dygraph-gviz.js
@@ -0,0 +1,84 @@
+/**
+ * @license
+ * Copyright 2011 Dan Vanderkam (danvdk@gmail.com)
+ * MIT-licensed (http://opensource.org/licenses/MIT)
+ */
+
+/**
+ * @fileoverview A wrapper around the Dygraph class which implements the
+ * interface for a GViz (aka Google Visualization API) visualization.
+ * It is designed to be a drop-in replacement for Google's AnnotatedTimeline,
+ * so the documentation at
+ * http://code.google.com/apis/chart/interactive/docs/gallery/annotatedtimeline.html
+ * translates over directly.
+ *
+ * For a full demo, see:
+ * - http://dygraphs.com/tests/gviz.html
+ * - http://dygraphs.com/tests/annotation-gviz.html
+ */
+
+(function() {
+/*global Dygraph:false */
+"use strict";
+
+/**
+ * A wrapper around Dygraph that implements the gviz API.
+ * @param {!HTMLDivElement} container The DOM object the visualization should
+ *     live in.
+ * @constructor
+ */
+Dygraph.GVizChart = function(container) {
+  this.container = container;
+};
+
+/**
+ * @param {GVizDataTable} data
+ * @param {Object.<*>} options
+ */
+Dygraph.GVizChart.prototype.draw = function(data, options) {
+  // Clear out any existing dygraph.
+  // TODO(danvk): would it make more sense to simply redraw using the current
+  // date_graph object?
+  this.container.innerHTML = '';
+  if (typeof(this.date_graph) != 'undefined') {
+    this.date_graph.destroy();
+  }
+
+  this.date_graph = new Dygraph(this.container, data, options);
+};
+
+/**
+ * Google charts compatible setSelection
+ * Only row selection is supported, all points in the row will be highlighted
+ * @param {Array.<{row:number}>} selection_array array of the selected cells
+ * @public
+ */
+Dygraph.GVizChart.prototype.setSelection = function(selection_array) {
+  var row = false;
+  if (selection_array.length) {
+    row = selection_array[0].row;
+  }
+  this.date_graph.setSelection(row);
+};
+
+/**
+ * Google charts compatible getSelection implementation
+ * @return {Array.<{row:number,column:number}>} array of the selected cells
+ * @public
+ */
+Dygraph.GVizChart.prototype.getSelection = function() {
+  var selection = [];
+
+  var row = this.date_graph.getSelection();
+
+  if (row < 0) return selection;
+
+  var points = this.date_graph.layout_.points;
+  for (var setIdx = 0; setIdx < points.length; ++setIdx) {
+    selection.push({row: row, column: setIdx + 1});
+  }
+
+  return selection;
+};
+
+})();