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Re: Printing - taking advantage of full page size?

Subject: Re: Printing - taking advantage of full page size?
From: Jim Correia <email@hidden>
Date: Tue, 29 Jan 2008 17:12:45 -0500
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On Jan 29, 2008, at 1:34 PM, David Duncan wrote:

The pagination methods are still the best way to do this. You would simply state that your content has exactly 1 page that fills the size of the paper. Then when your -drawRect is invoked, it will be invoked to draw within the bounds of the page size you specified previously.

I guess I'm confused as to what your advice specifically is here. The rect passed to -drawRect: is the clipping rect. I use that to restrict myself to only drawing what is necessary. The contents of the view are already laid out (and possibly cached) relative to the view's bounds, which remains unchanged.

In my sample view I've added:

- (BOOL)knowsPageRange:(NSRangePointer)range
{
	range->location = 1;
	range->length = 1;
	return YES;
}

- (NSRect)rectForPage:(NSInteger)page
{
	NSPrintOperation *printOperation = [NSPrintOperation currentOperation];
	NSPrintInfo *printInfo = [printOperation printInfo];
	
	NSRect pageRect;
	
	pageRect.origin = NSZeroPoint;
	pageRect.size = [printInfo paperSize];

	NSLog(@"-rectForPage: %@", NSStringFromRect(pageRect));

	return pageRect;
}

At the top of -drawRect: I log

NSLog(@"-drawRect: %@, onScreen = %d, bounds = %@", NSStringFromRect(rect), [[NSGraphicsContext currentContext] isDrawingToScreen], NSStringFromRect([self bounds]));

When message as part of the print sequence, I see:

-rectForPage: {{0, 0}, {612, 792}} -drawRect: {{0, 0}, {448, 205}}, onScreen = 0, bounds = {{0, 0}, {448, 205}}

Thanks,
Jim
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References:
	>Printing - taking advantage of full page size? (From: Jim Correia <email@hidden>)
	>Re: Printing - taking advantage of full page size? (From: David Duncan <email@hidden>)

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