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

Thread View: comp.sys.next.programmer

3 messages

[T] Back to Threads [V] Tree View [G] Group Articles

3 total messages Started by Charles Herrick Thu, 09 Apr 1992 19:55

#596

Author: 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>

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

#611

Author: simsong Simson L. Garfinkel
Date: Fri, 10 Apr 1992 16:20

14 lines
982 bytes

The problem is that text objects must be on real windows in order to print.

Instead of creating a new Text object to do your printing, just put a second  
text object somewhere else in your window.

Make otherText the id of that text object.

	[window addSubview:otherText]
	[otherText moveTo:1e30 :1e30];

Now shove the stuff you want into otherText and have it print...
-- 

................................................................simson

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

#614

Author: Charles Herrick
Date: Fri, 10 Apr 1992 18:31

52 lines
2111 bytes

Charles Herrick writes
> Bubalah's,
> I've got some email out on this, but it's driving me crazy so ...

well, so my good friend and mentor Scott Hess helped me fix my very bogus  
code, and here is some code that works. It allows you to print a section  
of text that you've selected in a Text object. Happy Hacking :-). 
By the way,

docView = [myScrollView docView];

BEGIN--CUT HERE--
- print:sender {
  // this works because of Scott Hess, bless him!!
  //  the MenuCell button with tag == 0 is the "Print All" menu button
	if (![[sender selectedCell] tag])
	  [docView printPSCode:self];
	else {
	    NXSelPt	start, end;
	    int		length;
	  [docView getSel:&start :&end];  
	  length = end.cp - start.cp;
	  if (length)	// something selected, print it {
	   id		invisibleWindow;
	    static id	textObject = nil;
	    NXStream	*stream;
	    NXRect	frameRect;
	    stream = NXOpenMemory(NULL,0,NX_READWRITE);
	    [docView writeRichText:stream from:start.cp to:end.cp];
	    [docView getFrame:&frameRect]; // gotta have a real frameRect
	    if (!textObject) {	
		// so it won't complain during lockFocus
	      invisibleWindow = [[Window alloc] init];	
	      textObject = [[[[Text alloc] 
	      			initFrame:&frameRect] 
				setMonoFont:NO] 
				setVertResizable:YES];
	      [[invisibleWindow contentView] addSubview:textObject];
	    }
	    else
	      [textObject setFrame:&frameRect];
	    NXSeek(stream, 0, NX_FROMSTART);	// rewind the stream
	    [textObject readRichText:stream];
	    NXClose(stream);
	    [textObject sizeToFit];		// adjust the frameRect
	    [textObject printPSCode:self];
	  }
	}
	return self;
}

END--CUT HERE--

Thread Navigation

This is a paginated view of messages in the thread with full content displayed inline.

Messages are displayed in chronological order, with the original post highlighted in green.

Use pagination controls to navigate through all messages in large threads.

Back to All Threads