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From: peter@cbmvax.commodore.com (Peter Cherna)
Newsgroups: comp.sys.amiga.tech
Subject: Re: default font heigth under 2.0
Message-ID: <14693@cbmvax.commodore.com>
Date: 27 Sep 90 19:17:05 GMT
References: <90270.154651GDAL3AI@cc1.kuleuven.ac.be>
Reply-To: peter@cbmvax.commodore.com (Peter Cherna)
Organization: Commodore, West Chester, PA
Lines: 40

In article <90270.154651GDAL3AI@cc1.kuleuven.ac.be> GDAL3AI@cc1.kuleuven.ac.be writes:
>I'm looking for a way to find the heigth of the default system font
>under 2.0 . The problem I have is the following: I want to print a
>text in a window via PrintIText. I want to determine the window
>heigth before opening it so I get a nice window that fits around
>the text. What is the right way to do this ??? (under 2.0)
>BTW. I find the Width by using IntuiTextLength (or something like that,
>can't remember... is that right too ???)
>If you can help me with this, please respond as fast as possible, 'cos
>I'll leave soon..

Under 2.0, your window titlebar will contain the screen's font.
To determine the height your window top border will be, perform
the following calculation:

	topborder = screen->WBorTop + (screen->Font->ta_YSize + 1);

To be safe, you should use the 2.0 Intuition function LockPubScreen(NULL)
to get the screen pointer of the default public screen (usually Workbench),
then open your window using

	win = OpenWindowTags(&newwin,
		WA_PubScreen, screen,
		TAG_DONE);

then call UnlockPubScreen(NULL, screen).

The default font for rendering IN the window is GfxBase->DefaultFont.
IntuiTextLength() (or graphics/TextLength()) tells you how wide
your text will be.  The new graphics.library call TextExtent() gives
you information about both width and height.

>                                               I. Aerts

     Peter
--
     Peter Cherna, Software Engineer, Commodore-Amiga, Inc.
     {uunet|rutgers}!cbmvax!peter    peter@cbmvax.cbm.commodore.com
My opinions do not necessarily represent the opinions of my employer.
"Very strange... the window is broken on both sides."