[api-dev] Re: The actual height of an auto-height Text Frame.

[Curtis Clauson]

The only solution I've found as yet to this is an awful hack. Does no 
one know of a way to accurately query the API for the rendered height of 
an Automatic Height TextFrame?

I can use the TextViewCursor.getPosition() method to get the Y position 
at end of the TextFrame text. However, this introduces a world of 
problems, not the least of which is the jumping around the text window 
does when you move the TextViewCursor from TextFrame to TextFrame.

The Y position you get is for the top of the cursor, so you have to also 
add the height of the last line. For some reason, the actual height 
added is 2 less - might be a bug. Also, the top of the cursor may not be 
the same as the top of the line. The only way I've found to deal with 
that is to use the difference between the position at the start of the 
text and the TextFrame position.

While TextFrame position values are from their anchor, the 
TextViewCursor value is from the start of the document. However, it also 
includes an extra amount of space per page. For an 11" page the value is 
 28,441 rather than 27,940 - an extra 501. Also, margins are ignored 
for each page except the page on which the object resides. The offset 
from that page is relative to the page margins.

This nasty hack can be made accurate for a specific document format, but 
might start losing accuracy as more format and style changes are made. 
The Basic algorithm for page anchored unbordered and unmargined 
TextFrames with fixed height lines is as follows:

  Function ViewCursorY(vViewCursor As Variant)
    ViewCursorY = _
        vViewCursor.getPosition.Y _
      - (vViewCursor.Page - 1) * PageHeight _
      + PageTopMargin
  End Function
...
  vViewCursor.gotoRange vTextFrame.getText.getStart, false
  lOffset = _
      ViewCursorY(vViewCursor) _
    - vTextFrame.VertOrientPosition
  vViewCursor.gotoEnd false
  lTextFrameHeight = _
      ViewCursorY(vViewCursor) _
    + vViewCursor.ParaLineSpacing.Height - 2
It works, but it sure is ugly. Hopefully, some of you will find this of 
some use.

--
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The Snake Pit - Development   www.TheSnakePitDev.com
Curtis Clauson                [EMAIL PROTECTED]
Proprietor
"Any sufficiently over-complicated magic is indistinguishable from 
technology." -- Llelan D.

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