> Hi Danny, it would be multi line text and I don't know if it
> will be center aligned. Maybe some parts will be. I didn't
> really get the technique you described. Can you please try
> and describe it again? Or is it possible that you share the
> code that you have? I can even compensate it somehow if it gets used.
My code is a bit complicated but the key function is this (warning: untested
email version; only works on left-aligned fields with a single text format -
no HTML. Also probably needs a bit of adjusting to take margins into
account. All these issues are fixable if necessary!):
function charToLoc(tPos:Number, tField:TextField):Object {
// this returns an object {x:..., y:...} - it could be a Point object if you
wanted
// find the text to look at and create a new textField for testing
var tTempField:TextField = tField._parent.createNewTextField("temp",
tField._parent.getNextHighestDepth)
var tFormat:TextFormat = tField.getTextFormat()
var tText:String = tField.text.substr(0, tPos)
// first find the bottom of the line:
var tStartOfLine:Number = lastCharBeforeLine(tText, tTempField, tFormat)
// now we know the y position
var tY:Number = 0)
if (tStartOfLine > 0) {
tTempField.text = tText.substr(0,tStartOfLine)
tTempField.setTextFormat(tFormat)
tY = tTempField.textHeight
}
// and the x position is got from the width of the remaining text
tTempField.text = tText.substr(tStartOfLine)
tTempField.setTextFormat(tFormat)
return {x: tTempField.textWidth, y:tY}
}
function lastCharBeforeLine(tText:String, tTempField:TextField,
tFormat:TextFormat):Number {
// get hald the line height
tTempField.text = "Ay"
tTempField.setTextFormat(tFormat)
var tHalfLine:Number = tTempField.textHeight/2
tTempField.text = tText
tTempField.setTextFormat(tFormat)
var tBottom:Number = tTempField.textHeight - tHalfLine
var tMax:Number = tText.length
var tInterval:Number = 16
// find an interval during which the line drops
do {
var tMin:Number = Math.max(tMax - tInterval, 0)
tTempField.text = tText.substr(0,tMin)
tTempField.setTextFormat(tFormat)
} while (tTempField.textHeight > tBottom && tMin>0)
if (tMin == 0) {
//we're on the first line
return 0
}
// otherwise home in on the point at which the line drops
while (tInterval>1) {
tInterval /= 2
var tMid:Number = tMin + tInterval
tTempField.text = tText.substr(0,tMid)
tTempField.setTextFormat(tFormat)
if (tTempField.textHeight < tBottom) {
tMin = tMid
}
}
return tMin
}
I'll leave it up to you to adapt these for your purposes; I hope they help.
Best
Danny
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