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Re: NSView -scrollPoint doesn't work with mouse wheel?

Subject: Re: NSView -scrollPoint doesn't work with mouse wheel?
From: Allen Dang <email@hidden>
Date: Tue, 1 Jan 2008 10:51:13 +0800
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在 2008-1-1，上午1:50， Bill Bumgarner 写道：

If the scroll view contains a text view, then use NSText's - (void)scrollRangeToVisible:(NSRange)range; method.

For NSView, try -scrollRectToVisible: instead. It is sort of the focal point for all scrolling operations in NSView.

However, if the behavior persists then -- obviously -- something else is going on. Are you setting the scrolling position from a thread, perchance? That could cause confusion.

b.bum

I'm trying to implement a auto scroll down mechanism in a NSTextView. I use a NSTimer to trigger following code:

- (void)startScroll:(NSTimer *)theTimer { //Start scroll. NSPoint currentScrollPosition=[[scrollView contentView] bounds].origin; NSPoint maxPosition = NSMakePoint(0.0,NSMaxY([[scrollView documentView] frame]) -NSHeight([[scrollView contentView] bounds])); if (currentScrollPosition.y < maxPosition.y) { NSPoint newPosition = NSMakePoint(currentScrollPosition.x, currentScrollPosition.y + 1); [[scrollView documentView] scrollPoint:newPosition]; } }

Allen Dang
email@hidden

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References:
	>NSView -scrollPoint doesn't work with mouse wheel? (From: Allen Dang <email@hidden>)
	>Re: NSView -scrollPoint doesn't work with mouse wheel? (From: Bill Bumgarner <email@hidden>)

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