Hi Andy,
If you want to fit text to a single line, you can just use the
CopyfitLine function.
If you want to fit to a different number of lines, you will need to roll
your own copyfit logic using the FusionProTextMeasure object.
Basically, most copyfitting involves iterations of measuring some text,
then modifying its size and measuring again, until it fits. The
<magnify> tag can be very helpful in this regard.
Here's a function that should work:
function CopyfitToLines(text, widthInPoints, numLines, magnifyType)
{
var MagnifyType = magnifyType || "text";
var NumLines = Int(numLines) || 1;
var tm = new FusionProTextMeasure;
tm.maxWidth = widthInPoints*100;
var retcode = 0;
var factor = 100;
var tags = text;
for (var factor = 100; factor >= 10; factor--)
{
if (factor != 100)
tags = "<magnify type=" + MagnifyType +
" factor=" + factor + ">" +
text + "</magnify>";
retcode = tm.CalculateTextExtent(tags);
if (tm.messages)
ReportError("CopyfitLines: " + tm.messages);
if (retcode != 0)
break;
if (tm.textLines <= NumLines)
return tags;
}
ReportWarning("CopyfitLines failed to fit the text");
return text;
}
The last two parameters are optional. Note that the font name, point
size, and anything else affecting the measurement must be specified in
the tags.
Here's an example of calling it:
var text = "<f name=Arial><z newsize=36>" +
Field("FName") + " " + Field("Lname") + " of " +
Field("City") + ", " + Field("State");
return CopyfitToLines(text, 200, 2);
Dan
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