Merge pull request #565 from danvk/gulp

[dygraphs.git] / plugins / grid.js

diff --git a/plugins/grid.js b/plugins/grid.js
deleted file mode 100644 (file)
index db1b42d..0000000
--- a/plugins/grid.js
+++ /dev/null
@@ -1,124 +0,0 @@
-/**
- * @license
- * Copyright 2012 Dan Vanderkam (danvdk@gmail.com)
- * MIT-licensed (http://opensource.org/licenses/MIT)
- */
-/*global Dygraph:false */
-
-Dygraph.Plugins.Grid = (function() {
-
-/*
-
-Current bits of jankiness:
-- Direct layout access
-- Direct area access
-
-*/
-
-"use strict";
-
-
-/**
- * Draws the gridlines, i.e. the gray horizontal & vertical lines running the
- * length of the chart.
- *
- * @constructor
- */
-var grid = function() {
-};
-
-grid.prototype.toString = function() {
-  return "Gridline Plugin";
-};
-
-grid.prototype.activate = function(g) {
-  return {
-    willDrawChart: this.willDrawChart
-  };
-};
-
-grid.prototype.willDrawChart = function(e) {
-  // Draw the new X/Y grid. Lines appear crisper when pixels are rounded to
-  // half-integers. This prevents them from drawing in two rows/cols.
-  var g = e.dygraph;
-  var ctx = e.drawingContext;
-  var layout = g.layout_;
-  var area = e.dygraph.plotter_.area;
-
-  function halfUp(x)  { return Math.round(x) + 0.5; }
-  function halfDown(y){ return Math.round(y) - 0.5; }
-
-  var x, y, i, ticks;
-  if (g.getOptionForAxis('drawGrid', 'y')) {
-    var axes = ["y", "y2"];
-    var strokeStyles = [], lineWidths = [], drawGrid = [], stroking = [], strokePattern = [];
-    for (var i = 0; i < axes.length; i++) {
-      drawGrid[i] = g.getOptionForAxis('drawGrid', axes[i]);
-      if (drawGrid[i]) {
-        strokeStyles[i] = g.getOptionForAxis('gridLineColor', axes[i]);
-        lineWidths[i] = g.getOptionForAxis('gridLineWidth', axes[i]);
-        strokePattern[i] = g.getOptionForAxis('gridLinePattern', axes[i]);
-        stroking[i] = strokePattern[i] && (strokePattern[i].length >= 2);
-      }
-    }
-    ticks = layout.yticks;
-    ctx.save();
-    // draw grids for the different y axes
-    for (i = 0; i < ticks.length; i++) {
-      var axis = ticks[i][0];
-      if(drawGrid[axis]) {
-        if (stroking[axis]) {
-          ctx.installPattern(strokePattern[axis]);
-        }
-        ctx.strokeStyle = strokeStyles[axis];
-        ctx.lineWidth = lineWidths[axis];
-
-        x = halfUp(area.x);
-        y = halfDown(area.y + ticks[i][1] * area.h);
-        ctx.beginPath();
-        ctx.moveTo(x, y);
-        ctx.lineTo(x + area.w, y);
-        ctx.closePath();
-        ctx.stroke();
-
-        if (stroking[axis]) {
-          ctx.uninstallPattern();
-        }
-      }
-    }
-    ctx.restore();
-  }
-
-  // draw grid for x axis
-  if (g.getOptionForAxis('drawGrid', 'x')) {
-    ticks = layout.xticks;
-    ctx.save();
-    var strokePattern = g.getOptionForAxis('gridLinePattern', 'x');
-    var stroking = strokePattern && (strokePattern.length >= 2);
-    if (stroking) {
-      ctx.installPattern(strokePattern);
-    }
-    ctx.strokeStyle = g.getOptionForAxis('gridLineColor', 'x');
-    ctx.lineWidth = g.getOptionForAxis('gridLineWidth', 'x');
-    for (i = 0; i < ticks.length; i++) {
-      x = halfUp(area.x + ticks[i][0] * area.w);
-      y = halfDown(area.y + area.h);
-      ctx.beginPath();
-      ctx.moveTo(x, y);
-      ctx.lineTo(x, area.y);
-      ctx.closePath();
-      ctx.stroke();
-    }
-    if (stroking) {
-      ctx.uninstallPattern();
-    }
-    ctx.restore();
-  }
-};
-
-grid.prototype.destroy = function() {
-};
-
-return grid;
-
-})();