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class XAxisLabels
{
private var mcs:Array;
private var style:XLabelStyle;
public var labels:Array;
function XAxisLabels( lv:LoadVars, style:XLabelStyle )
{
if( lv.x_labels == undefined )
return;
var labels:Array = lv.x_labels.split(',');
this.style = style;
// what if there are more values than labels?
//this.count = this.labels.length;
this.labels = [];
this.mcs = Array();
for( var i:Number=0; i < labels.length; i++ )
{
this.add( labels[i] );
}
}
function add( label:String )
{
this.labels.push( label );
if( ( (this.labels.length-1) % style.step ) ==0 )
this.show_label( label, 'x_label_'+String(this.labels.length) );
}
function del()
{
this.labels.shift();
// delete all the MovieClips, and recreate them
// we have to do this because of the 'step' value
//
// I expect there is a better way of doing this...
//
for( var i:Number=0; i<this.mcs.length; i++ )
removeMovieClip(this.mcs[i]._name);
this.mcs = [];
// now we have deleted all the labels, re-create them
// note we use the step value so only create *some*
for( var i:Number=0; i<this.labels.length; i++ )
if( ( i % style.step ) == 0 )
this.show_label( this.labels[i], 'x_label_'+i );
}
function show_label( label:String, name:String )
{
// we create the text in its own movie clip, so when
// we rotate it, we can move the regestration point
var mc:MovieClip = _root.createEmptyMovieClip(name, _root.getNextHighestDepth() );
mc.createTextField('txt', _root.getNextHighestDepth(), 0, 0, 100, 80);
mc.txt.text = label;
if( style.vertical || style.diag )
{
// so we can rotate the text
mc.txt.embedFonts = true;
}
var fmt:TextFormat = new TextFormat();
fmt.color = style.colour;
if( style.vertical )
fmt.font = "Verdana_embed";
else
fmt.font = "Verdana";
fmt.size = style.size;
fmt.align = "left";
mc.txt.setTextFormat(fmt);
mc.txt.autoSize = "left";
if( style.vertical )
{
mc.txt._rotation = 270;
// LOOK: move registration point:
mc.txt._y = mc._height;
mc.txt._x = -(mc.txt._width/2)
}
else if( style.diag )
{
// shift the text so when we rotate the movie clip it rotates
// arround the last letter
mc.txt._x = -mc.txt._width;
mc.txt._y = -(mc.txt._height/2);
mc._rotation = -45;
}
else
{
mc.txt._x = -(mc.txt._width/2);
}
this.mcs.push( mc );
// we don't know the x & y locations yet...
}
function count()
{
return this.labels.length;
}
function height()
{
var height:Number = 0;
for( var i:Number=0; i<this.mcs.length; i++ )
height = Math.max( height, this.mcs[i]._height );
return height;
}
function move( yPos:Number, count:Number, b:Box )
{
var i:Number = 0;
for( var pos:Number=0; pos < this.mcs.length; pos++ )
{
this.mcs[pos]._x = b.get_x_tick_pos(i);
this.mcs[pos]._y = yPos;
i+=this.style.step;
}
}
//
// to help Box calculate the correct width:
//
function last_label_width()
{
// is the last label shown?
if( ( (this.labels.length-1) % style.step ) != 0 )
return 0;
// get the width of the right most label
// because it may stick out past the end of the graph
// and we don't want to truncate it.
return this.mcs[(this.mcs.length-1)]._width;
}
// see above comments
function first_label_width()
{
return this.mcs[0]._width;
}
}
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