PDFsharp & MigraDoc Foundation
http://forum.pdfsharp.de/

Getting the Effective Font of a Table Cell
http://forum.pdfsharp.de/viewtopic.php?f=2&t=1558		 Page 1 of 1
Author:  wcwedin [ Tue Feb 22, 2011 10:41 pm ]
Post subject:  Getting the Effective Font of a Table Cell
I'm trying to estimate the printed width of a run of text while creating a document, so that I can truncate the text to fit on a single line in a table cell.

I've managed to do this for specific situations using the following code:

Code:
private static string FitString(string value, Font font, float availableWidth)
{
   var ruler = new TextMeasurement(font);
   value = value.Trim();
   SizeF size = ruler.MeasureString(value, UnitType.Point);
   if (size.Width > availableWidth) value = value + "\u2026";
   while (size.Width > availableWidth)
   {
      value = value.Substring(0, value.Length - 3).Trim() + "\u2026";
      size = ruler.MeasureString(value, UnitType.Point);
   }
   return value;
}


However, I've found myself in a situation where I won't always know which Font object to grab. For instance, because in previous usages I knew the structure and formatting of the document ahead of time, I knew that the Cell I was truncating would use the Table's font size and name, so I would just grab the Font using something like table.Format.Font.

For my current project, this is no longer the case; I'm trying to generalize my FitString function so that I use it at a higher level, where I can't assume anything about the location of the formatting information.

Is there any way to easily figure out what formatting properties will ultimately be applied to a DocumentObject, or at least a Cell in particular?
Author:  Thomas Hoevel [ Wed Feb 23, 2011 8:21 am ]
Post subject:  Re: Getting the Effective Font of a Table Cell
This depends on how you use MigraDoc.

We specify Fonts for Styles only and use Styles anywhere else.

You can set the style of a cell, or the style of the table. Maybe row and column also have styles.
You can also use AddFormattedText so that elements in a cell will have different styles.

You can use "InternalsVisibleTo" to make internals of MigraDoc available to your application.
I don't know how MigraDoc determines which font will be used. But if you find the code in MigraDoc, you will be able to use the same routines.
Page 1 of 1 All times are UTC
Powered by phpBB® Forum Software © phpBB Group
https://www.phpbb.com/