1 | define(["dojo/_base/lang","dojo/_base/declare","dojo/_base/connect","dojo/_base/fx","dojox/gfx","./_Indicator"], |
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2 | function(lang, declare, connect, fx, gfx, Indicator) { |
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3 | |
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4 | return declare("dojox.gauges.AnalogIndicatorBase",[Indicator],{ |
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5 | // summary: |
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6 | // An abstract base class for indicators that can be used in an AnalogGauge. |
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7 | // |
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8 | |
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9 | draw: function(/*dojox.gfx.Group*/ group, /*Boolean?*/ dontAnimate){ |
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10 | // summary: |
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11 | // Override of dojox.gauges._Indicator.draw |
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12 | // group: dojox.gfx.Group |
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13 | // The GFX group when the indicator must be drawn |
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14 | // dontAnimate: Boolean |
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15 | // Indicates if the drawing should not be animated (vs. the default of doing an animation) |
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16 | if(this.shape){ |
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17 | this._move(dontAnimate); |
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18 | }else{ |
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19 | if(this.text){ |
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20 | this.text.parent.remove(this.text); |
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21 | this.text = null; |
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22 | } |
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23 | var a = this._gauge._getAngle(Math.min(Math.max(this.value, this._gauge.min), this._gauge.max)); |
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24 | |
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25 | this.color = this.color || '#000000'; |
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26 | this.length = this.length || this._gauge.radius; |
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27 | this.width = this.width || 1; |
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28 | this.offset = this.offset || 0; |
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29 | this.highlight = this.highlight || '#D0D0D0'; |
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30 | |
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31 | var shapes = this._getShapes(group, this._gauge, this); |
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32 | |
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33 | if (shapes){ |
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34 | if (shapes.length > 1){ |
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35 | this.shape = group.createGroup(); |
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36 | for (var s = 0; s < shapes.length; s++){ |
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37 | this.shape.add(shapes[s]); |
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38 | } |
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39 | } |
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40 | else |
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41 | this.shape = shapes[0]; |
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42 | |
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43 | this.shape.setTransform([{ |
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44 | dx: this._gauge.cx, |
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45 | dy: this._gauge.cy |
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46 | }, gfx.matrix.rotateg(a)]); |
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47 | |
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48 | this.shape.connect("onmouseover", this, this.handleMouseOver); |
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49 | this.shape.connect("onmouseout", this, this.handleMouseOut); |
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50 | this.shape.connect("onmousedown", this, this.handleMouseDown); |
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51 | this.shape.connect("touchstart", this, this.handleTouchStart); |
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52 | } |
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53 | if(this.label){ |
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54 | var direction = this.direction; |
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55 | if (!direction) direction = 'outside'; |
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56 | |
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57 | var len; |
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58 | if (direction == 'inside') |
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59 | len=-this.length+this.offset - 5; |
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60 | else |
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61 | len=this.length+this.offset + 5; |
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62 | |
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63 | var rad=this._gauge._getRadians(90-a); |
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64 | this._layoutLabel(group, this.label+'', this._gauge.cx, this._gauge.cy,len ,rad , direction); |
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65 | |
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66 | } |
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67 | this.currentValue = this.value; |
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68 | } |
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69 | }, |
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70 | |
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71 | _layoutLabel:function(group, txt, ox, oy, lrad, angle, labelPlacement){ |
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72 | // summary: |
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73 | // Places the label on the side of the tick. |
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74 | |
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75 | var font = this.font ? this.font : gfx.defaultFont; |
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76 | |
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77 | var box = gfx._base._getTextBox(txt, |
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78 | { |
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79 | font: gfx.makeFontString(gfx.makeParameters(gfx.defaultFont,font)) |
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80 | }); |
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81 | |
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82 | var tw = box.w; |
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83 | var fz = font.size; |
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84 | var th = gfx.normalizedLength(fz); |
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85 | |
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86 | var tfx = ox + Math.cos(angle) * lrad - tw / 2; |
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87 | var tfy = oy - Math.sin(angle) * lrad - th / 2; |
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88 | var side; |
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89 | |
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90 | var intersections = []; |
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91 | |
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92 | // Intersection with top segment |
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93 | side = tfx; |
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94 | var ipx = side; |
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95 | var ipy = -Math.tan(angle) * side + oy + Math.tan(angle) * ox; |
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96 | // Verify if intersection is on segment |
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97 | if (ipy >= tfy && ipy <= tfy + th) |
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98 | intersections.push({ |
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99 | x: ipx, |
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100 | y: ipy |
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101 | }); |
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102 | |
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103 | // Intersection with bottom segment |
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104 | side = tfx + tw; |
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105 | ipx = side; |
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106 | ipy = -Math.tan(angle) * side + oy + Math.tan(angle) * ox; |
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107 | // Verify if intersection is on segment |
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108 | if (ipy >= tfy && ipy <= tfy + th) intersections.push({ |
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109 | x: ipx, |
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110 | y: ipy |
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111 | }); |
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112 | |
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113 | // Intersection with left segment |
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114 | side = tfy; |
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115 | ipx = -1 / Math.tan(angle) * side + ox + 1 / Math.tan(angle) * oy; |
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116 | ipy = side; |
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117 | // Verify if intersection is on segment |
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118 | if (ipx >= tfx && ipx <= tfx + tw) |
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119 | intersections.push({ |
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120 | x: ipx, |
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121 | y: ipy |
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122 | }); |
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123 | |
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124 | // Intersection with right segment |
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125 | side = tfy + th; |
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126 | ipx = -1 / Math.tan(angle) * side + ox + 1 / Math.tan(angle) * oy; |
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127 | ipy = side; |
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128 | // Verify if intersection is on segment |
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129 | if (ipx >= tfx && ipx <= tfx + tw) |
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130 | intersections.push({ |
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131 | x: ipx, |
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132 | y: ipy |
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133 | }); |
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134 | |
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135 | var dif; |
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136 | if (labelPlacement == "inside"){ |
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137 | for (var it = 0; it < intersections.length; it++){ |
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138 | var ip = intersections[it]; |
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139 | dif = this._distance(ip.x, ip.y, ox, oy) - lrad; |
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140 | if (dif >= 0){ |
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141 | // Place reference intersection point on reference circle |
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142 | tfx = ox + Math.cos(angle) * (lrad - dif) - tw / 2; |
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143 | tfy = oy - Math.sin(angle) * (lrad - dif) - th / 2; |
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144 | break; |
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145 | } |
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146 | } |
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147 | } |
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148 | else // "outside" placement |
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149 | { |
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150 | for (it = 0; it < intersections.length; it++){ |
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151 | ip = intersections[it]; |
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152 | dif = this._distance(ip.x, ip.y, ox, oy) - lrad; |
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153 | if (dif <= 0){ |
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154 | // Place reference intersection point on reference circle |
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155 | tfx = ox + Math.cos(angle) * (lrad - dif) - tw / 2; |
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156 | tfy = oy - Math.sin(angle) * (lrad - dif) - th / 2; |
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157 | |
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158 | break; |
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159 | } |
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160 | } |
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161 | } |
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162 | // since the size computed by getTextBox is too big, |
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163 | // to lower the problem, we align this to the middle and |
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164 | // place at the middle of the computed size. |
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165 | this.text = this._gauge.drawText(group, txt, tfx + tw / 2, tfy + th, 'middle', this.color, this.font); |
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166 | }, |
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167 | |
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168 | _distance: function(x1,y1,x2,y2){ |
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169 | return Math.sqrt((x2-x1)*(x2-x1) + (y2-y1)*(y2-y1)); |
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170 | }, |
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171 | |
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172 | _move: function(/*Boolean?*/ dontAnimate){ |
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173 | // summary: |
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174 | // dontAnimate: Boolean |
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175 | // Indicates if the drawing should not be animated (vs. the default of doing an animation) |
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176 | var v = Math.min(Math.max(this.value, this._gauge.min), this._gauge.max), |
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177 | c = this.currentValue |
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178 | ; |
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179 | if(dontAnimate){ |
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180 | var angle = this._gauge._getAngle(v); |
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181 | this.shape.setTransform([{dx:this._gauge.cx,dy:this._gauge.cy}, gfx.matrix.rotateg(angle)]); |
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182 | this.currentValue = v; |
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183 | }else{ |
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184 | if(c!=v){ |
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185 | var anim = new fx.Animation({curve: [c, v], duration: this.duration, easing: this.easing}); |
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186 | connect.connect(anim, "onAnimate", lang.hitch(this, function(step){ |
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187 | this.shape.setTransform([{dx:this._gauge.cx,dy:this._gauge.cy}, gfx.matrix.rotateg(this._gauge._getAngle(step))]); |
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188 | |
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189 | this.currentValue = step; |
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190 | })); |
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191 | anim.play(); |
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192 | } |
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193 | } |
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194 | } |
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195 | }); |
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196 | }); |
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