how to scroll a view on demand?

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2 total messages Started by Robert Frank Thu, 10 Sep 1992 07:09

#914

Author: Robert Frank
Date: Thu, 10 Sep 1992 07:09

27 lines
1727 bytes

Something simple for the IB-gurus (I'm a beginner):

The setup: I have a scrollview with a view as it's docView. The View's rectagle  
is larger than the visible area of the scrollviews docView - making the  
vertical scroller visible and functional. 
When displaying the window the scroller is at bottom of the bar and I see the  
bottom of the view.

How do I tell the scrollview (per software) to scroll to the top of the view?
I've tried the -scrollRect:by: method for views but with no luck. I know how to  
place and size the scroller itself but not how to actually scroll the view.

The examples I have looked at all use matrixes as docViews which allow easy  
scrolling to any position.

Any help appreciated.

-Robert

--
Robert Frank                         tel. + (061) 321 99 67                 
Institut fuer Informatik             fax  + (061) 321 99 15                 
University of Basel, Switzerland                                            
Mittlere Strasse 142      rfc822: frank@ifi.unibas.ch (NeXT mail accepted)  
CH-4056 Basel          X400: S=frank;OU=ifi;O=unibas;P=switch;A=arcom;C=ch
                   ( if all fails try frank@urz.unibas.ch )

Re: how to scroll a view on demand?

#937

Author: Ray Spalding
Date: Thu, 10 Sep 1992 21:30

15 lines
965 bytes

In article <1992Sep10.070945.13964@urz.unibas.ch> frank@ifi.unibas.ch writes:
>How do I tell the scrollview (per software) to scroll to the top of the view?

	id clipview;
	NXPoint pt;
	
	pt.x = pt.y = 0;	// assumes flipped coordinates (0 at top)
	clipview = [[scrollview docView] superview];
	[clipview rawScroll:&pt];
	[scrollview reflectScroll:clipview];

-- 
Ray Spalding, Office of Information Technology
Georgia Institute of Technology, Atlanta Georgia, 30332-0715
Internet: ray.spalding@oit.gatech.edu (NeXT Mail accepted)

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