Hi,
In the IDE for "Input" text fields, you can fill it with "m"
characters ("M" if you are allowing uppercase input). Then count the
number of m's that fit in your space for that font size and set the
"Maximum Characters" property of the text field in the IDE
(TextField.maxChars is the corresponding AS property).
FYI - "m" is usually the widest character in the font which is why
they use "em" for font measurement; (1em = width of the "m")
If you are using pure AS code, you can calculate the width in a
similar way when you create the text field, by filling it with m's until
your width is reached.
for example (untested):
var calculatedSize:Boolean = false;
var fmt:TextFormat = myTf.getTextFormat();
var padding:int = 4;//standard padding for TextFields
//This is how wide your text field can be - you could pass this into
a class if your TF does not know the size of the thing it's supposed to
match.
var desiredWidth:int = 50;
var maxChars:int = 0;
//Go in a loop adding characters until the width of our text
exceeds our "desired" width.
do {
myTf.appendText("m");
//not 100% sure, but think you may have to call this to ensure
your input text gets formatted nicely when you add chars.
myTf.setTextFormat(fmt);
maxChars++;
if ((desiredWidth - padding) < myTf.textWidth) {
maxChars--;
calculatedSize = true;
}
} while(false == calcutedSize)
myTf.maxChars = maxChars;
myTf.text = "";
HTH
Glen
ktt wrote:
Hello,
TextFiled is placed on a larger box A. How to limit input to TextField, when it
touches(visualy) one of the box sides? TextField is not a child of a box A.
Regards,
ktt
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Glen Pike
01326 218440
www.glenpike.co.uk <http://www.glenpike.co.uk>
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