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Article #596

-=?=- dumping text into an invisible text object -=?=-

#596
From: Charles Herrick
Date: Thu, 09 Apr 1992 19:55
48 lines
1876 bytes
Bubalah's,
I've got some email out on this, but it's driving me crazy so ...

I'd like to shove a selected section from one Text object into another so  
I can send the "invisible" target Text object a printPSCode: message and  
get the effect of printing selected text. The source Text object lives in  
a ScrollView, is straight off IB's palette (i.e. setMonoFont:NO) and is:
		docView = [myScrollView docView];

here's code:

BEGIN--CUT HERE--
{
	    NXSelPt	start, end;
	    int		length;
	  [docView getSel:&start :&end];  
	  length = end.cp - start.cp;
	  if (length)	// something selected, print it
	  {
	   id		textObject;
	    NXStream	*stream;
	    NXRect	frameRect = {0.0,0.0,1.0,1.0};
	    	// get an NXStream
	    stream = NXOpenMemory(NULL,0,NX_READWRITE);
		// and dump from source Text object
	    [docView writeRichText:stream from:start.cp to:end.cp];
		// get an invisible target Text object. Am I lost here?	    
	    textObject = [[[Text alloc] 
				initFrame:&frameRect] 
				setMonoFont:NO];
		// dump into the text object
	    [textObject readRichText:stream];
	    NXClose(stream);	    
	    [textObject printPSCode:self];	    
	    [textObject free];
	  }
}

END--CUT HERE--

Now here's what happens ... in Gdb, after the readRichText: message to  
textObject, sending [textObject byteLength] replies 1. And indeed a blank  
page gets printed. I've noodled around with stream->buf_base, and there is  
indeed stuff in the NXStream.

Help??

	Chuck Herrick <cnh5730@maraba.tamu.edu>
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Message-ID: <12092@tamsun.tamu.edu>
Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!tamsun!maraba.tamu.edu

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Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!tamsun!maraba.tamu.edu
From: cnh5730@maraba.tamu.edu (Charles Herrick)
Newsgroups: comp.sys.next.programmer
Subject: -=?=- dumping text into an invisible text object -=?=-
Message-ID: <12092@tamsun.tamu.edu>
Date: 9 Apr 92 19:55:58 GMT
Sender: usenet@tamsun.tamu.edu
Lines: 48