Re: Custom pagination clipping
Re: Custom pagination clipping
- Subject: Re: Custom pagination clipping
- From: Matt Neuburg <email@hidden>
- Date: Thu, 13 Sep 2007 12:39:49 -0700
- Thread-topic: Custom pagination clipping
On Wed, 12 Sep 2007 14:14:38 -0700, Greg Hoover <email@hidden> said:
>I have an NSTextView that I'm trying to paginate so that lines aren't
>cut when printing across several pages. In knowsPageRange I figure
>out where the page boundaries should be in the view's coordinate
>system. Then I've overridden rectForPage as follows:
>
>- (NSRect)rectForPage:(int)pageNumber {
> NSRect rect = [self bounds];
>
> if ([pageBoundaries count]) {
> rect.origin.y = 0;
> if (pageNumber > 1)
> rect.origin.y = [[pageBoundaries objectAtIndex: pageNumber - 2]
>floatValue];
> rect.size.height = [[pageBoundaries objectAtIndex: pageNumber - 1]
>floatValue] - rect.origin.y;
> }
>
> return rect;
>}
>
>The problem is that the view is wider than the printed page and it
>gets clipped. I'd hoped that the rect I return from rectFromPage
>would be scaled to fit the printed area, but apparently not. The
>default printing from NSVIew handles this scaling great. Can someone
>fill in what I'm missing?
I'm a little hesitant to jump in here, but I *think* the problem lies in
your sentence "The problem is that the view is wider than the printed page."
This may betray a misconception about how to print. It is your job to see to
it that the view is NOT wider than the printed page. Typically, you do this
by making a view, in real time, specifically for the act of printing, using
the information about the user's print settings to help you get the size
right. In other words, my advice would be, don't ask the views in your user
interface to print themselves; set up a whole new view structure for
printing purposes, populate it, tell it to print itself, and let it tear
down again when printing is over. m.
--
matt neuburg, phd = email@hidden, <http://www.tidbits.com/matt/>
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