1 | define(["dojo/_base/lang", "dojo/_base/declare", "dojo/_base/array", "dojo/sniff", |
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2 | "./CartesianBase", "./common", "dojox/lang/utils", "dojox/gfx/fx"], |
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3 | function(lang, declare, arr, has, CartesianBase, dc, du, fx){ |
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4 | |
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5 | var sortTicks = function(a,b){return a.value - b.value}; |
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6 | |
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7 | /*===== |
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8 | declare("dojox.charting.plot2d.__GridCtorArgs", dojox.charting.plot2d.__CartesianCtorArgs, { |
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9 | // summary: |
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10 | // A special keyword arguments object that is specific to a grid "plot". |
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11 | |
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12 | // majorHLine: dojox.gfx.Stroke? |
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13 | // An optional dojox.gfx.Stroke for a major horizontal line. By default major lines use major tick stroke. |
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14 | majorHLine:undefined, |
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15 | |
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16 | // minorHLine: dojox.gfx.Stroke? |
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17 | // An optional dojox.gfx.Stroke for a minor horizontal line. By default minor lines use minor tick stroke. |
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18 | minorHLine:undefined, |
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19 | |
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20 | // majorVLine: dojox.gfx.Stroke? |
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21 | // An optional dojox.gfx.Stroke for a major vertical line. By default major lines use major tick stroke. |
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22 | majorVLine:undefined, |
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23 | |
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24 | // minorVLine: dojox.gfx.Stroke? |
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25 | // An optional dojox.gfx.Stroke for a minor vertical line. By default major lines use major tick stroke. |
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26 | minorVLine:undefined, |
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27 | |
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28 | // hFill: dojox.gfx.Fill? |
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29 | // An optional dojox.gfx.Fill used to fill every other horizontal stripe created by grid lines. |
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30 | hFill: undefined, |
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31 | |
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32 | // hAlternateFill: dojox.gfx.Fill? |
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33 | // An optional dojox.gfx.Fill used to fill alternating horizontal stripe created by grid lines not filled by `hFill`. |
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34 | hAlternateFill: undefined, |
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35 | |
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36 | // vFill: dojox.gfx.Fill? |
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37 | // An optional dojox.gfx.Fill used to fill every other vertical stripe created by grid lines. |
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38 | vFill: undefined, |
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39 | |
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40 | // vAlternateFill: dojox.gfx.Fill? |
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41 | // An optional dojox.gfx.Fill used to fill alternating vertical stripe created by grid lines not filled by `vFill`. |
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42 | vAlternateFill: undefined, |
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43 | |
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44 | // hMajorLines: Boolean? |
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45 | // Whether to show lines at the major ticks along the horizontal axis. Default is true. |
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46 | hMajorLines: true, |
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47 | |
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48 | // hMinorLines: Boolean? |
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49 | // Whether to show lines at the minor ticks along the horizontal axis. Default is false. |
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50 | hMinorLines: false, |
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51 | |
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52 | // vMajorLines: Boolean? |
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53 | // Whether to show lines at the major ticks along the vertical axis. Default is true. |
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54 | vMajorLines: true, |
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55 | |
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56 | // vMinorLines: Boolean? |
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57 | // Whether to show lines at the major ticks along the vertical axis. Default is false. |
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58 | vMinorLines: false, |
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59 | |
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60 | // hStripes: Boolean? |
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61 | // Whether to show horizontal stripes. Default is false. |
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62 | hStripes: false, |
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63 | |
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64 | // vStripes: Boolean? |
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65 | // Whether to show vertical stripes. Default is false. |
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66 | vStripes: false, |
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67 | |
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68 | // enableCache: Boolean? |
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69 | // Whether the grid lines are cached from one rendering to another. This improves the rendering performance of |
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70 | // successive rendering but penalize the first rendering. Default false. |
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71 | enableCache: false, |
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72 | |
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73 | // renderOnAxis: Boolean? |
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74 | // Whether or not the grid is rendered when drawn at horizontal or vertical axis position. Default is true. |
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75 | renderOnAxis: true |
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76 | }); |
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77 | =====*/ |
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78 | |
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79 | return declare("dojox.charting.plot2d.Grid", CartesianBase, { |
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80 | // summary: |
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81 | // A "faux" plot that can be placed behind other plots to represent |
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82 | // a grid against which other plots can be easily measured. |
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83 | defaultParams: { |
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84 | hMajorLines: true, // draw horizontal major lines |
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85 | hMinorLines: false, // draw horizontal minor lines |
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86 | vMajorLines: true, // draw vertical major lines |
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87 | vMinorLines: false, // draw vertical minor lines |
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88 | hStripes: false, // draw vertical stripes |
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89 | vStripes: false, // draw vertical stripes |
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90 | animate: null, // animate bars into place |
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91 | enableCache: false, |
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92 | renderOnAxis: true |
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93 | }, |
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94 | |
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95 | optionalParams: { |
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96 | majorHLine: {}, |
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97 | minorHLine: {}, |
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98 | majorVLine: {}, |
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99 | minorVLine: {}, |
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100 | hFill: {}, |
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101 | vFill: {}, |
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102 | hAlternateFill: {}, |
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103 | vAlternateFill: {} |
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104 | }, |
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105 | |
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106 | constructor: function(chart, kwArgs){ |
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107 | // summary: |
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108 | // Create the faux Grid plot. |
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109 | // chart: dojox/charting/Chart |
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110 | // The chart this plot belongs to. |
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111 | // kwArgs: dojox.charting.plot2d.__GridCtorArgs? |
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112 | // An optional keyword arguments object to help define the parameters of the underlying grid. |
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113 | this.opt = lang.clone(this.defaultParams); |
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114 | du.updateWithObject(this.opt, kwArgs); |
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115 | du.updateWithPattern(this.opt, kwArgs, this.optionalParams); |
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116 | this.animate = this.opt.animate; |
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117 | if(this.opt.enableCache){ |
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118 | this._lineFreePool = []; |
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119 | this._lineUsePool = []; |
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120 | this._rectFreePool = []; |
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121 | this._rectUsePool = []; |
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122 | } |
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123 | }, |
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124 | addSeries: function(run){ |
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125 | // summary: |
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126 | // Ignored but included as a dummy method. |
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127 | // returns: dojox/charting/plot2d/Grid |
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128 | // The reference to this plot for functional chaining. |
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129 | return this; // dojox/charting/plot2d/Grid |
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130 | }, |
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131 | getSeriesStats: function(){ |
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132 | // summary: |
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133 | // Returns default stats (irrelevant for this type of plot). |
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134 | // returns: Object |
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135 | // {hmin, hmax, vmin, vmax} min/max in both directions. |
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136 | return lang.delegate(dc.defaultStats); // Object |
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137 | }, |
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138 | cleanGroup: function(){ |
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139 | this.inherited(arguments); |
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140 | if(this.opt.enableCache){ |
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141 | this._lineFreePool = this._lineFreePool.concat(this._lineUsePool); |
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142 | this._lineUsePool = []; |
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143 | this._rectFreePool = this._rectFreePool.concat(this._rectUsePool); |
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144 | this._rectUsePool = []; |
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145 | } |
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146 | }, |
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147 | createLine: function(creator, params){ |
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148 | var line; |
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149 | if(this.opt.enableCache && this._lineFreePool.length > 0){ |
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150 | line = this._lineFreePool.pop(); |
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151 | line.setShape(params); |
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152 | // was cleared, add it back |
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153 | creator.add(line); |
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154 | }else{ |
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155 | line = creator.createLine(params); |
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156 | } |
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157 | if(this.opt.enableCache){ |
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158 | this._lineUsePool.push(line); |
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159 | } |
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160 | return line; |
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161 | }, |
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162 | createRect: function(creator, params){ |
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163 | var rect; |
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164 | if(this.opt.enableCache && this._rectFreePool.length > 0){ |
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165 | rect = this._rectFreePool.pop(); |
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166 | rect.setShape(params); |
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167 | // was cleared, add it back |
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168 | creator.add(rect); |
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169 | }else{ |
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170 | rect = creator.createRect(params); |
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171 | } |
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172 | if(this.opt.enableCache){ |
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173 | this._rectUsePool.push(rect); |
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174 | } |
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175 | return rect; |
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176 | }, |
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177 | |
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178 | render: function(dim, offsets){ |
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179 | // summary: |
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180 | // Render the plot on the chart. |
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181 | // dim: Object |
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182 | // An object of the form { width, height }. |
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183 | // offsets: Object |
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184 | // An object of the form { l, r, t, b }. |
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185 | // returns: dojox/charting/plot2d/Grid |
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186 | // A reference to this plot for functional chaining. |
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187 | if(this.zoom){ |
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188 | return this.performZoom(dim, offsets); |
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189 | } |
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190 | this.dirty = this.isDirty(); |
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191 | if(!this.dirty){ return this; } |
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192 | this.cleanGroup(); |
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193 | var s = this.getGroup(), ta = this.chart.theme, lineStroke, ticks; |
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194 | if((has("ios") && has("ios") < 6) || has("android") || (has("safari") && !has("ios"))){ |
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195 | // clipping seems buggy in some mobile Webkit browser and Safari desktop |
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196 | // it does not clip correctly if only lines are present => create a invisible rectangle... |
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197 | var w = Math.max(0, dim.width - offsets.l - offsets.r), |
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198 | h = Math.max(0, dim.height - offsets.t - offsets.b); |
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199 | s.createRect({ x: offsets.l, y: offsets.t, width: w, height: h}); |
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200 | } |
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201 | if(this._vAxis){ |
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202 | // draw horizontal stripes and lines |
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203 | ticks = this._vAxis.getTicks(); |
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204 | var vScaler = this._vAxis.getScaler(); |
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205 | if(ticks != null && vScaler != null){ |
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206 | var vt = vScaler.scaler.getTransformerFromModel(vScaler); |
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207 | if(this.opt.hStripes){ |
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208 | this._renderHRect(ticks, ta.grid, dim, offsets, vScaler, vt); |
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209 | } |
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210 | if(this.opt.hMinorLines){ |
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211 | lineStroke = this.opt.minorHLine || (ta.grid && ta.grid.minorLine) || ta.axis.minorTick; |
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212 | this._renderHLines(ticks.minor, lineStroke, dim, offsets, vScaler, vt); |
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213 | } |
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214 | if(this.opt.hMajorLines){ |
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215 | lineStroke = this.opt.majorHLine || (ta.grid && ta.grid.majorLine) || ta.axis.majorTick; |
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216 | this._renderHLines(ticks.major, lineStroke, dim, offsets, vScaler, vt); |
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217 | } |
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218 | } |
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219 | |
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220 | } |
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221 | if(this._hAxis){ |
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222 | // draw vertical stripes and lines |
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223 | ticks = this._hAxis.getTicks(); |
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224 | var hScaler = this._hAxis.getScaler(); |
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225 | if(ticks != null && hScaler != null){ |
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226 | var ht = hScaler.scaler.getTransformerFromModel(hScaler); |
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227 | if(this.opt.vStripes){ |
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228 | this._renderVRect(ticks, ta.grid, dim, offsets, hScaler, ht); |
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229 | } |
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230 | if(ticks && this.opt.vMinorLines){ |
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231 | lineStroke = this.opt.minorVLine || (ta.grid && ta.grid.minorLine) || ta.axis.minorTick; |
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232 | this._renderVLines(ticks.minor, lineStroke, dim, offsets, hScaler, ht); |
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233 | } |
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234 | if(ticks && this.opt.vMajorLines){ |
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235 | lineStroke = this.opt.majorVLine || (ta.grid && ta.grid.majorLine) || ta.axis.majorTick; |
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236 | this._renderVLines(ticks.major, lineStroke, dim, offsets, hScaler, ht); |
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237 | } |
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238 | |
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239 | } |
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240 | } |
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241 | this.dirty = false; |
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242 | return this; // dojox/charting/plot2d/Grid |
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243 | }, |
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244 | _renderHLines: function(ticks, lineStroke, dim, offsets, vScaler, vt){ |
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245 | var s = this.getGroup(); |
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246 | arr.forEach(ticks, function(tick){ |
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247 | if(!this.opt.renderOnAxis && tick.value == (this._vAxis.opt.leftBottom?vScaler.bounds.from:vScaler.bounds.to)){ |
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248 | return; |
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249 | } |
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250 | var y = dim.height - offsets.b - vt(tick.value); |
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251 | var hLine = this.createLine(s, { |
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252 | x1: offsets.l, |
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253 | y1: y, |
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254 | x2: dim.width - offsets.r, |
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255 | y2: y |
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256 | }).setStroke(lineStroke); |
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257 | if(this.animate){ |
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258 | this._animateGrid(hLine, "h", offsets.l, offsets.r + offsets.l - dim.width); |
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259 | } |
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260 | }, this); |
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261 | }, |
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262 | _renderVLines: function(ticks, lineStroke, dim, offsets, hScaler, ht){ |
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263 | var s = this.getGroup(); |
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264 | arr.forEach(ticks, function(tick){ |
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265 | if(!this.opt.renderOnAxis && tick.value == (this._hAxis.opt.leftBottom?hScaler.bounds.from:hScaler.bounds.to)){ |
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266 | return; |
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267 | } |
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268 | var x = offsets.l + ht(tick.value); |
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269 | var vLine = this.createLine(s, { |
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270 | x1: x, |
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271 | y1: offsets.t, |
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272 | x2: x, |
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273 | y2: dim.height - offsets.b |
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274 | }).setStroke(lineStroke); |
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275 | if(this.animate){ |
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276 | this._animateGrid(vLine, "v", dim.height - offsets.b, dim.height - offsets.b - offsets.t); |
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277 | } |
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278 | }, this); |
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279 | }, |
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280 | _renderHRect: function(ticks, theme, dim, offsets, vScaler, vt){ |
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281 | var fill, tick, y, y2, hStripe; |
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282 | var allTicks = ticks.major.concat(ticks.minor); |
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283 | allTicks.sort(sortTicks); |
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284 | if(allTicks[0].value > vScaler.bounds.from){ |
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285 | allTicks.splice(0, 0, {value: vScaler.bounds.from}); |
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286 | } |
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287 | if(allTicks[allTicks.length - 1].value < vScaler.bounds.to){ |
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288 | allTicks.push({value: vScaler.bounds.to}); |
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289 | } |
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290 | var s = this.getGroup(); |
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291 | for(var j = 0; j < allTicks.length - 1; j++){ |
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292 | tick = allTicks[j]; |
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293 | y = dim.height - offsets.b - vt(tick.value); |
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294 | y2 = dim.height - offsets.b - vt(allTicks[j+1].value); |
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295 | |
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296 | fill = (j%2 == 0)?(this.opt.hAlternateFill ||(theme && theme.alternateFill)): |
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297 | (this.opt.hFill || (theme && theme.fill)); |
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298 | if(fill){ |
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299 | hStripe = this.createRect(s, { |
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300 | x: offsets.l, |
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301 | y: y, |
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302 | width: dim.width - offsets.r, |
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303 | height: y - y2 |
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304 | }).setFill(fill); |
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305 | if(this.animate){ |
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306 | this._animateGrid(hStripe, "h", offsets.l, offsets.r + offsets.l - dim.width); |
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307 | } |
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308 | } |
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309 | } |
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310 | }, |
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311 | _renderVRect: function(ticks, theme, dim, offsets, hScaler, ht){ |
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312 | var fill, tick, x, x2, vStripe; |
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313 | var allTicks = ticks.major.concat(ticks.minor); |
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314 | allTicks.sort(sortTicks); |
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315 | if(allTicks[0].value > hScaler.bounds.from){ |
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316 | allTicks.splice(0, 0, {value: hScaler.bounds.from}); |
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317 | } |
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318 | if(allTicks[allTicks.length - 1].value < hScaler.bounds.to){ |
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319 | allTicks.push({value: hScaler.bounds.to}); |
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320 | } |
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321 | var s = this.getGroup(); |
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322 | for(var j = 0; j < allTicks.length - 1; j++){ |
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323 | tick = allTicks[j]; |
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324 | x = offsets.l + ht(tick.value); |
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325 | x2 = offsets.l + ht(allTicks[j+1].value); |
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326 | |
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327 | fill = (j%2 == 0)?(this.opt.vAlternateFill ||(theme && theme.alternateFill)): |
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328 | (this.opt.vFill || (theme && theme.fill)); |
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329 | if(fill){ |
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330 | vStripe = this.createRect(s, { |
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331 | x: x, |
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332 | y: offsets.t, |
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333 | width: x2 - x, |
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334 | height: dim.width - offsets.r |
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335 | }).setFill(fill); |
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336 | if(this.animate){ |
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337 | this._animateGrid(vStripe, "v", dim.height - offsets.b, dim.height - offsets.b - offsets.t); |
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338 | } |
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339 | } |
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340 | } |
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341 | }, |
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342 | _animateGrid: function(shape, type, offset, size){ |
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343 | var transStart = type == "h" ? [offset, 0] : [0, offset]; |
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344 | var scaleStart = type == "h" ? [1/size, 1] : [1, 1/size]; |
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345 | fx.animateTransform(lang.delegate({ |
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346 | shape: shape, |
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347 | duration: 1200, |
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348 | transform: [ |
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349 | {name: "translate", start: transStart, end: [0, 0]}, |
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350 | {name: "scale", start: scaleStart, end: [1, 1]}, |
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351 | {name: "original"} |
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352 | ] |
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353 | }, this.animate)).play(); |
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354 | } |
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355 | }); |
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356 | }); |
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