| [7849] | 1 | package charts {
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| 2 |
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| 3 | import flash.display.Sprite;
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| 4 | import charts.series.Element;
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| 5 | import flash.geom.Point;
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| 6 | import elements.axis.XAxisLabels;
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| 7 |
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| 8 | public class Base extends Sprite {
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| 9 |
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| 10 | // accessed by the Keys object to display the key
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| 11 | protected var key:String;
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| 12 | protected var font_size:Number;
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| 13 |
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| 14 |
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| 15 | public var colour:Number;
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| 16 | public var line_width:Number;
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| 17 | public var circle_size:Number;
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| 18 |
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| 19 | //
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| 20 | // hold the Element values, for lines this is an
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| 21 | // array of string Y values, for Candle it is an
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| 22 | // array of string 'high,open,low,close' values,
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| 23 | // for scatter it is 'x,y' etc...
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| 24 | //
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| 25 | public var values:Array;
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| 26 |
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| 27 | protected var axis:Number;
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| 28 |
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| 29 | public function Base()
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| 30 | {}
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| 31 |
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| 32 | public function get_colour(): Number {
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| 33 | return this.colour;
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| 34 | }
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| 35 |
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| 36 | //
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| 37 | // return an array of key info objects:
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| 38 | //
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| 39 | public function get_keys(): Object {
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| 40 |
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| 41 | var tmp:Array = [];
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| 42 |
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| 43 | // some lines may not have a key
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| 44 | if( (this.font_size > 0) && (this.key != '' ) )
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| 45 | tmp.push( { 'text':this.key, 'font-size':this.font_size, 'colour':this.get_colour() } );
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| 46 |
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| 47 | return tmp;
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| 48 | }
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| 49 |
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| 50 | //
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| 51 | // whatever sets of data that *may* be attached to the right
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| 52 | // Y Axis call this to see if they are attached to it or not.
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| 53 | // All lines, area and bar charts call this.
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| 54 | //
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| 55 | protected function which_axis_am_i_attached_to( data:Array, i:Number ): Number {
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| 56 | //
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| 57 | // some data sets are attached to the right
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| 58 | // Y axis (and min max), in the future we
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| 59 | // may support many axis
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| 60 | //
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| 61 | if( data['show_y2'] != undefined )
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| 62 | if( data['show_y2'] != 'false' )
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| 63 | if( data['y2_lines'] != undefined )
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| 64 | {
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| 65 | var tmp:Array = data.y2_lines.split(",");
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| 66 | var pos:Number = tmp.indexOf( i.toString() );
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| 67 |
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| 68 | if ( pos == -1 )
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| 69 | return 1;
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| 70 | else
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| 71 | return 2; // <-- this line found in y2_lines, so it is attached to axis 2 (right axis)
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| 72 | }
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| 73 |
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| 74 | return 1;
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| 75 | }
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| 76 |
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| 77 |
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| 78 | /**
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| 79 | * may be called by main.as to make the X Axis labels
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| 80 | * @return
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| 81 | */
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| 82 | public function get_max_x():Number {
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| 83 |
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| 84 | var max:Number = Number.MIN_VALUE;
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| 85 | //
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| 86 | // count the non-mask items:
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| 87 | //
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| 88 | for ( var i:Number = 0; i < this.numChildren; i++ ) {
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| 89 | if ( this.getChildAt(i) is Element ) {
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| 90 |
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| 91 | var e:Element = this.getChildAt(i) as Element
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| 92 | max = Math.max( max, e.get_x() );
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| 93 | }
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| 94 | }
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| 95 |
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| 96 | return max;
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| 97 | }
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| 98 |
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| 99 | public function get_min_x():Number {
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| 100 |
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| 101 | var min:Number = Number.MAX_VALUE;
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| 102 | //
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| 103 | // count the non-mask items:
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| 104 | //
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| 105 | for ( var i:Number = 0; i < this.numChildren; i++ ) {
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| 106 | if ( this.getChildAt(i) is Element ) {
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| 107 |
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| 108 | var e:Element = this.getChildAt(i) as Element
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| 109 | min = Math.min( min, e.get_x() );
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| 110 | }
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| 111 | }
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| 112 |
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| 113 | return min;
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| 114 | }
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| 115 |
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| 116 | //
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| 117 | // this should be overriden
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| 118 | //
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| 119 | public function resize( sc:ScreenCoordsBase ):void{}
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| 120 |
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| 121 | //public function draw( val:String, mc:Object ):void {}
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| 122 |
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| 123 |
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| 124 |
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| 125 |
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| 126 | //
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| 127 | // TODO: old remove when tooltips tested
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| 128 | //
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| 129 | public function closest( x:Number, y:Number ): Object {
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| 130 | var shortest:Number = Number.MAX_VALUE;
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| 131 | var closest:Element = null;
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| 132 | var dx:Number;
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| 133 |
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| 134 | for ( var i:Number = 0; i < this.numChildren; i++ ) {
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| 135 |
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| 136 | //
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| 137 | // some of the children will will mask
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| 138 | // Sprites, so filter those out:
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| 139 | //
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| 140 | if( this.getChildAt(i) is Element ) {
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| 141 |
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| 142 | var e:Element = this.getChildAt(i) as Element;
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| 143 | e.set_tip( false );
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| 144 |
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| 145 | dx = Math.abs( x -e.x );
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| 146 |
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| 147 | if( dx < shortest ) {
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| 148 | shortest = dx;
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| 149 | closest = e;
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| 150 | }
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| 151 | }
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| 152 | }
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| 153 |
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| 154 | var dy:Number = 0;
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| 155 | if( closest )
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| 156 | dy = Math.abs( y - closest.y );
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| 157 |
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| 158 | return { element:closest, distance_x:shortest, distance_y:dy };
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| 159 | }
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| 160 |
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| 161 | //
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| 162 | // Line and bar charts will normally only have one
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| 163 | // Element at any X position, but when using Radar axis
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| 164 | // you may get many at any give X location.
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| 165 | //
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| 166 | // Scatter charts can have many items at the same X position
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| 167 | //
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| 168 | public function closest_2( x:Number, y:Number ): Array {
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| 169 |
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| 170 | // get the closest Elements X value
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| 171 | var x:Number = closest_x(x);
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| 172 | var tmp:Array = this.get_all_at_this_x_pos(x);
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| 173 |
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| 174 | // tr.aces('tmp.length', tmp.length);
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| 175 |
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| 176 | var closest:Array = this.get_closest_y(tmp, y);
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| 177 | var dy:Number = Math.abs( y - closest.y );
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| 178 | // tr.aces('closest.length', closest.length);
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| 179 |
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| 180 | return closest;
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| 181 | }
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| 182 |
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| 183 | //
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| 184 | // get the X value of the closest points to the mouse
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| 185 | //
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| 186 | private function closest_x( x:Number ):Number {
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| 187 |
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| 188 | var closest:Number = Number.MAX_VALUE;
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| 189 | var p:flash.geom.Point;
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| 190 | var x_pos:Number;
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| 191 | var dx:Number;
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| 192 |
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| 193 | for ( var i:Number = 0; i < this.numChildren; i++ ) {
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| 194 |
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| 195 | //
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| 196 | // some of the children will will mask
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| 197 | // Sprites, so filter those out:
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| 198 | //
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| 199 | if( this.getChildAt(i) is Element ) {
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| 200 |
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| 201 | var e:Element = this.getChildAt(i) as Element;
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| 202 |
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| 203 | p = e.get_mid_point();
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| 204 | dx = Math.abs( x - p.x );
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| 205 |
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| 206 | if( dx < closest ) {
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| 207 | closest = dx;
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| 208 | x_pos = p.x;
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| 209 | }
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| 210 | }
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| 211 | }
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| 212 |
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| 213 | return x_pos;
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| 214 | }
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| 215 |
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| 216 | //
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| 217 | // get all the Elements at this X position
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| 218 | // BarStack overrides this
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| 219 | //
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| 220 | protected function get_all_at_this_x_pos( x:Number ):Array {
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| 221 |
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| 222 | var tmp:Array = new Array();
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| 223 | var p:flash.geom.Point;
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| 224 | var e:Element;
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| 225 |
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| 226 | for ( var i:Number = 0; i < this.numChildren; i++ ) {
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| 227 |
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| 228 | // some of the children will will mask
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| 229 | // Sprites, so filter those out:
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| 230 | //
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| 231 | if( this.getChildAt(i) is Element ) {
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| 232 |
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| 233 | e = this.getChildAt(i) as Element;
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| 234 |
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| 235 | //
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| 236 | // Point elements are invisible by default.
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| 237 | //
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| 238 | // Prevent invisible points from showing tooltips
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| 239 | // For scatter line area
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| 240 | //if (e.visible)
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| 241 | //{
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| 242 | p = e.get_mid_point();
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| 243 | if ( p.x == x )
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| 244 | tmp.push( e );
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| 245 | //}
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| 246 | }
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| 247 | }
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| 248 |
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| 249 | return tmp;
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| 250 | }
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| 251 |
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| 252 | //
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| 253 | // scatter charts may have many Elements in the same
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| 254 | // x, y location
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| 255 | //
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| 256 | private function get_closest_y( elements:Array, y:Number):Array {
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| 257 |
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| 258 | var y_min:Number = Number.MAX_VALUE;
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| 259 | var dy:Number;
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| 260 | var closest:Array = new Array();
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| 261 | var p:flash.geom.Point;
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| 262 | var e:Element;
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| 263 |
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| 264 | // get min Y distance
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| 265 | for each( e in elements ) {
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| 266 |
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| 267 | p = e.get_mid_point();
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| 268 | dy = Math.abs( y - p.y );
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| 269 |
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| 270 | y_min = Math.min( dy, y_min );
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| 271 | }
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| 272 |
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| 273 | // select all Elements at this Y pos
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| 274 | for each( e in elements ) {
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| 275 |
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| 276 | p = e.get_mid_point();
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| 277 | dy = Math.abs( y - p.y );
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| 278 | if( dy == y_min )
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| 279 | closest.push(e);
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| 280 | }
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| 281 |
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| 282 | return closest;
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| 283 | }
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| 284 |
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| 285 | //
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| 286 | // scatter charts may have many Elements in the same
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| 287 | // x, y location
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| 288 | //
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| 289 | public function mouse_proximity( x:Number, y:Number ): Array {
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| 290 |
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| 291 | var closest:Number = Number.MAX_VALUE;
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| 292 | var p:flash.geom.Point;
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| 293 | var i:Number;
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| 294 | var e:Element;
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| 295 | var mouse:flash.geom.Point = new flash.geom.Point(x, y);
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| 296 |
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| 297 | //
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| 298 | // find the closest Elements
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| 299 | //
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| 300 | for ( i=0; i < this.numChildren; i++ ) {
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| 301 |
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| 302 | // filter mask Sprites
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| 303 | if( this.getChildAt(i) is Element ) {
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| 304 |
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| 305 | e = this.getChildAt(i) as Element;
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| 306 | closest = Math.min( flash.geom.Point.distance(e.get_mid_point(), mouse), closest );
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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 | // grab all Elements at this distance
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| 312 | //
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| 313 | var close:Array = [];
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| 314 | for ( i=0; i < this.numChildren; i++ ) {
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| 315 |
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| 316 | // filter mask Sprites
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| 317 | if( this.getChildAt(i) is Element ) {
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| 318 |
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| 319 | e = this.getChildAt(i) as Element;
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| 320 | if ( flash.geom.Point.distance(e.get_mid_point(), mouse) == closest )
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| 321 | close.push(e);
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| 322 | }
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| 323 | }
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| 324 |
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| 325 | return close;
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| 326 | }
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| 327 |
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| 328 |
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| 329 |
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| 330 | //
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| 331 | // this is a backup function so if the mouse leaves the
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| 332 | // movie for some reason without raising the mouse
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| 333 | // out event (this happens if the user is wizzing the mouse about)
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| 334 | //
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| 335 | public function mouse_out():void {
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| 336 | for ( var i:Number = 0; i < this.numChildren; i++ ) {
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| 337 |
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| 338 | // filter out the mask elements in line charts
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| 339 | if( this.getChildAt(i) is Element ) {
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| 340 |
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| 341 | var e:Element = this.getChildAt(i) as Element;
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| 342 | e.set_tip(false);
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| 343 | }
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| 344 | }
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| 345 | }
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| 346 |
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| 347 |
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| 348 | //
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| 349 | // index of item (bar, point, pie slice, horizontal bar) may be used
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| 350 | // to look up its X value (bar,point) or Y value (H Bar) or used as
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| 351 | // the sequence number (Pie)
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| 352 | //
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| 353 | protected function get_element( index:Number, value:Object ): Element {
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| 354 | return null;
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| 355 | }
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| 356 |
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| 357 | public function add_values():void {
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| 358 |
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| 359 | // keep track of the X position (column)
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| 360 | var index:Number = 0;
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| 361 |
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| 362 | for each ( var val:Object in this.values )
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| 363 | {
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| 364 | var tmp:Element;
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| 365 |
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| 366 | //
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| 367 | // TODO: fix or document what is happening in link-null-bug.txt
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| 368 | //
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| 369 |
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| 370 | // filter out the 'null' values
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| 371 | if( val != null )
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| 372 | {
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| 373 | tmp = this.get_element( index, val );
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| 374 |
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| 375 | if( tmp.line_mask != null )
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| 376 | this.addChild( tmp.line_mask );
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| 377 |
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| 378 | this.addChild( tmp );
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| 379 | }
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| 380 |
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| 381 | index++;
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| 382 | }
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| 383 | }
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| 384 |
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| 385 | /**
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| 386 | * See ObjectCollection tooltip_replace_labels
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| 387 | *
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| 388 | * @param labels
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| 389 | */
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| 390 | public function tooltip_replace_labels( labels:XAxisLabels ):void {
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| 391 | for ( var i:Number = 0; i < this.numChildren; i++ ) {
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| 392 |
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| 393 | // filter out the mask elements in line charts
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| 394 | if( this.getChildAt(i) is Element ) {
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| 395 |
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| 396 | var e:Element = this.getChildAt(i) as Element;
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| 397 | e.tooltip_replace_labels( labels );
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| 398 | }
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| 399 | }
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| 400 | }
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| 401 |
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| 402 | public function die():void {
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| 403 |
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| 404 | for ( var i:Number = 0; i < this.numChildren; i++ )
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| 405 | if ( this.getChildAt(i) is Element ) {
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| 406 |
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| 407 | var e:Element = this.getChildAt(i) as Element;
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| 408 | e.die();
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| 409 | }
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| 410 |
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| 411 | while ( this.numChildren > 0 )
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| 412 | this.removeChildAt(0);
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| 413 | }
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| 414 | }
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| 415 | }
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