1 | define(["dojo/_base/declare", "dojo/on", "dojox/gfx", "./IndicatorBase"], function(declare, on, gfx, IndicatorBase){ |
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2 | return declare("dojox.dgauges.RectangularSegmentedRangeIndicator", IndicatorBase, { |
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3 | // summary: |
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4 | // A segmented-style range indicator for rectangular gauges. |
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5 | // This class will be replaced by a cleaner implementation in a future version. |
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6 | |
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7 | start: 0, |
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8 | startThickness: 10, |
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9 | endThickness: 10, |
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10 | fill: null, |
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11 | stroke: null, |
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12 | paddingLeft: 0, |
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13 | paddingTop: 0, |
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14 | paddingRight: 0, |
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15 | paddingBottom: 0, |
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16 | |
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17 | // segments: Number |
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18 | // The number of segments making the indicator. |
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19 | // By default it is 10. |
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20 | segments: 10, |
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21 | |
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22 | // segmentSpacing: Number |
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23 | // The blank space between two segments. The default value is 2 |
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24 | segmentSpacing: 2, |
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25 | |
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26 | // rounded: Boolean |
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27 | // Indicates if the extremity segments are rounded. |
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28 | // Default is true. |
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29 | rounded: true, |
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30 | |
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31 | // ranges: Array |
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32 | // An array containing objects to define color ranges. Example [{color:"#FF0000", size:20}, {color:"#FF8800", size:50}]. |
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33 | ranges: null, |
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34 | |
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35 | constructor: function(){ |
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36 | // summary: |
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37 | // Constructor. |
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38 | // description: |
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39 | // Creates a segmented range indicator. |
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40 | this.fill = [255, 120, 0]; |
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41 | this.stroke = { |
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42 | color: "black", |
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43 | width: .2 |
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44 | }; |
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45 | |
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46 | this.addInvalidatingProperties(["start", "startThickness", "endThickness", "fill", "stroke","segments","segmentSpacing","ranges"]); |
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47 | }, |
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48 | |
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49 | _defaultHorizontalShapeFunc: function(indicator, group, scale, startX, startY, endPosition, startThickness, endThickness, fill, stroke){ |
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50 | // summary: |
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51 | // Internal method. |
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52 | // tags: |
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53 | // private |
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54 | var length = scale._contentBox.w ; |
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55 | var shape, i, gp, radius; |
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56 | |
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57 | if(this.ranges){ |
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58 | // Configure gradient to represent the ranges |
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59 | fill = {type:"linear", colors:[]}; |
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60 | fill.x1 = startX; |
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61 | fill.y1 = startY; |
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62 | fill.x2 = startX + length; |
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63 | fill.y2 = startY; |
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64 | |
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65 | var rangeStart = this.start; |
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66 | |
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67 | for(i = 0; i < this.ranges.length; i++){ |
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68 | var entry1 = { |
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69 | color:this.ranges[i].color, |
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70 | offset: scale.scaler.positionForValue(rangeStart) |
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71 | }; |
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72 | var entry2 = { |
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73 | color:this.ranges[i].color, |
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74 | offset: scale.scaler.positionForValue(rangeStart+this.ranges[i].size) |
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75 | }; |
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76 | fill.colors.push(entry1); |
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77 | fill.colors.push(entry2); |
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78 | rangeStart += this.ranges[i].size; |
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79 | } |
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80 | }else if(fill && fill.colors){ |
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81 | // Configure gradient |
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82 | fill.x1 = startX; |
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83 | fill.y1 = startY; |
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84 | fill.x2 = startX + length; |
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85 | fill.y2 = startY; |
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86 | } |
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87 | |
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88 | var x = startX; |
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89 | var y = startY; |
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90 | var chicklet = (length / this.segments) - this.segmentSpacing; |
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91 | var visibleSegments = Math.abs( (endPosition - startX) / (chicklet+this.segmentSpacing) ); |
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92 | var sw = this.startThickness; |
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93 | var inc = (this.endThickness - this.startThickness) /this.segments |
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94 | var ew = sw+inc; |
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95 | var remain = visibleSegments - Math.floor(visibleSegments); |
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96 | |
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97 | for(i = 0; i < Math.floor(visibleSegments); i++){ |
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98 | var path = group.createPath(); |
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99 | |
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100 | if(i == 0 && this.rounded && (sw/2) < chicklet){ // first segment rounded |
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101 | radius = sw/2; |
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102 | path.moveTo(x + radius, y); |
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103 | path.lineTo(x + chicklet, y); |
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104 | path.lineTo(x + chicklet, y + ew); |
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105 | path.lineTo(x + radius, y + sw); |
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106 | path.arcTo(radius, radius, 0, 0, 1, x + radius, y) |
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107 | }else{ |
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108 | if(i == Math.floor(visibleSegments) - 1 && (remain == 0) && this.rounded && (ew/2) < chicklet){ // last segment rounded |
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109 | radius = ew/2; |
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110 | path.moveTo(x, y); |
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111 | path.lineTo(x + chicklet - radius, y); |
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112 | path.arcTo(radius, radius, 0, 0, 1, x + chicklet - radius, y + ew) |
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113 | path.lineTo(x, y + sw); |
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114 | path.lineTo(x, y); |
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115 | }else{ |
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116 | path.moveTo(x, y); |
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117 | path.lineTo(x + chicklet, y); |
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118 | path.lineTo(x + chicklet, y + ew); |
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119 | path.lineTo(x, y + sw); |
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120 | path.lineTo(x, y); |
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121 | } |
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122 | } |
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123 | |
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124 | path.setFill(fill).setStroke(stroke); |
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125 | sw = ew; |
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126 | ew += inc; |
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127 | x += chicklet + this.segmentSpacing; |
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128 | } |
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129 | |
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130 | // draw the remaining segment part |
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131 | if(remain > 0){ |
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132 | ew = sw+( (ew-sw)*remain ); |
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133 | gp = [x, y, x+(chicklet*remain), y, x+(chicklet*remain), y + ew, x, y + sw, x, y] |
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134 | shape = group.createPolyline(gp).setFill(fill).setStroke(stroke); |
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135 | } |
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136 | |
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137 | return shape; |
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138 | }, |
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139 | |
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140 | _defaultVerticalShapeFunc: function(indicator, group, scale, startX, startY, endPosition, startThickness, endThickness, fill, stroke){ |
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141 | // summary: |
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142 | // Internal method. |
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143 | // tags: |
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144 | // private |
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145 | var length = scale._contentBox.h ; |
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146 | var shape, i,gp,radius; |
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147 | if(this.ranges){ |
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148 | // Configure gradient to represent the ranges |
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149 | fill = {type:"linear", colors:[]}; |
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150 | fill.x1 = startX; |
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151 | fill.y1 = startY; |
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152 | fill.x2 = startX; |
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153 | fill.y2 = startY + length; |
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154 | |
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155 | var rangeStart = 0; |
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156 | |
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157 | for(i = 0; i < this.ranges.length; i++){ |
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158 | var entry1 = { |
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159 | color:this.ranges[i].color, |
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160 | offset: scale.scaler.positionForValue(rangeStart) |
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161 | }; |
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162 | var entry2 = { |
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163 | color:this.ranges[i].color, |
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164 | offset: scale.scaler.positionForValue(rangeStart+this.ranges[i].size) |
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165 | }; |
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166 | fill.colors.push(entry1); |
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167 | fill.colors.push(entry2); |
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168 | rangeStart += this.ranges[i].size |
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169 | } |
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170 | }else if(fill && fill.colors){ |
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171 | // Configure gradient |
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172 | fill.x1 = startX; |
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173 | fill.y1 = startY; |
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174 | fill.x2 = startX; |
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175 | fill.y2 = startY + length; |
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176 | } |
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177 | |
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178 | var x = startX; |
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179 | var y = startY; |
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180 | var chicklet = (length / this.segments) - this.segmentSpacing; |
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181 | var visibleSegments = Math.abs( (endPosition - startY) / (chicklet+this.segmentSpacing) ); |
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182 | var sw = this.startThickness; |
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183 | var inc = (this.endThickness - this.startThickness) /this.segments |
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184 | var ew = sw+inc; |
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185 | var remain = visibleSegments - Math.floor(visibleSegments); |
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186 | |
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187 | for(i = 0; i < Math.floor(visibleSegments); i++){ |
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188 | var path = group.createPath(); |
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189 | |
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190 | if(i == 0 && this.rounded && (sw/2) < chicklet){ // first segment rounded |
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191 | radius = sw/2; |
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192 | path.moveTo(x , y+ radius); |
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193 | path.lineTo(x , y+ chicklet); |
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194 | path.lineTo(x + ew, y + chicklet); |
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195 | path.lineTo(x + sw, y + radius); |
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196 | path.arcTo(radius, radius, 0, 0, 0, x , y+ radius) |
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197 | }else{ |
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198 | if(i == Math.floor(visibleSegments) - 1 && (remain == 0) && this.rounded && (ew/2) < chicklet){ // last segment rounded |
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199 | radius = ew/2; |
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200 | path.moveTo(x, y); |
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201 | path.lineTo(x , y+ chicklet - radius); |
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202 | path.arcTo(radius, radius, 0, 0, 0, x + ew, y + chicklet - radius) |
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203 | path.lineTo(x+ sw, y ); |
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204 | path.lineTo(x, y); |
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205 | }else{ |
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206 | path.moveTo(x, y); |
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207 | path.lineTo(x , y+ chicklet); |
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208 | path.lineTo(x + ew, y + chicklet); |
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209 | path.lineTo(x+ sw, y ); |
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210 | path.lineTo(x, y); |
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211 | } |
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212 | } |
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213 | |
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214 | path.setFill(fill).setStroke(stroke); |
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215 | sw = ew; |
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216 | ew += inc; |
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217 | y += chicklet + this.segmentSpacing; |
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218 | } |
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219 | |
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220 | // draw the remaining segment part |
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221 | if(remain > 0){ |
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222 | ew = sw+( (ew-sw)*remain ); |
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223 | gp = [x, y, x, y+(chicklet*remain), x+ ew, y+(chicklet*remain), x+ sw, y , x, y]; |
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224 | shape = group.createPolyline(gp).setFill(fill).setStroke(stroke); |
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225 | } |
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226 | |
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227 | return shape; |
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228 | }, |
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229 | |
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230 | indicatorShapeFunc: function(group, indicator, startX, startY, endPosition, startThickness, endThickness, fill, stroke){ |
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231 | // summary: |
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232 | // Internal method. |
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233 | // tags: |
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234 | // private |
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235 | |
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236 | if(indicator.scale._gauge.orientation == "horizontal"){ |
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237 | this._defaultHorizontalShapeFunc(indicator, group, indicator.scale, startX, startY, endPosition, startThickness, endThickness, fill, stroke); |
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238 | }else{ |
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239 | this._defaultVerticalShapeFunc(indicator, group, indicator.scale, startX, startY, endPosition, startThickness, endThickness, fill, stroke); |
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240 | } |
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241 | }, |
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242 | |
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243 | refreshRendering: function(){ |
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244 | |
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245 | if(this._gfxGroup == null || this.scale == null){ |
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246 | return; |
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247 | } |
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248 | // gets position corresponding to the values |
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249 | var spos = this.scale.positionForValue(this.start); |
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250 | var pos = this.scale.positionForValue(this.value); |
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251 | this._gfxGroup.clear(); |
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252 | |
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253 | var startX; |
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254 | var startY; |
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255 | var endPosition; |
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256 | if(this.scale._gauge.orientation == "horizontal"){ |
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257 | startX = spos; |
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258 | startY = this.paddingTop; |
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259 | endPosition = pos; |
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260 | }else{ |
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261 | startX = this.paddingLeft; |
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262 | startY = spos ; |
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263 | endPosition = pos; |
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264 | } |
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265 | this.indicatorShapeFunc(this._gfxGroup, this, startX, startY, endPosition, this.startThickness, this.endThickness, this.fill, this.stroke); |
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266 | } |
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267 | }) |
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268 | }); |
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