layoutManager drawGlyphs is moving lines up? (WAS: Watch for overflow when drawing...)
layoutManager drawGlyphs is moving lines up? (WAS: Watch for overflow when drawing...)
- Subject: layoutManager drawGlyphs is moving lines up? (WAS: Watch for overflow when drawing...)
- From: Justin Hawkwood <email@hidden>
- Date: Wed, 22 Jun 2005 18:02:06 -0700
I have a textStorage that I am trying to display during the drawRect
function of an NSView (for printing). The documentation gives an
example of using the NSLayoutManager's function
"drawGlyphsForGlyphRange:atPoint:" but when I do this the lines print
from bottom to top. The documentation also said that it will expect
a flipped view, but I cannot figure out how to flip the NSView, or
correct this some other way. I also tried using an NSTextView, but I
could not get it to display at all!
Suggestions? Help?
~ Justin
On Jun 13, 2005, at 8:27 PM, Fritz Anderson wrote:
On 13 Jun 2005, at 9:56 PM, Justin Hawkwood wrote:
I have an NSString that I would like to draw (using drawInRect:
withAttributes:?) to an NSView for printing. As this string was
entered using a NSTextView, it could be very long, and I want to
know if it overflows the rect that I set it to draw in, and if so
where in the string it was clipped, so that I can continue the
rest of the string on an other page (rinse and repeat).
PLUS how to do this in pre-10.3?
Once you get into measuring text layouts and multiple text
containers, you are officially out of the realm of NSString
convenience methods, and into NSLayoutManager and NSTextContainer.
Stop for a couple of hours and learn the Cocoa text stack.
You want to read: <http://developer.apple.com/documentation/Cocoa/
Conceptual/TextLayout/index.html>.
Possible prerequisite: <http://developer.apple.com/documentation/
Cocoa/Conceptual/TextArchitecture/index.html>
Examples at /Developer/Examples/TextEdit and /Developer/Examples/
TextSizingExample
I'm sorry, but your head will hurt for a little while (technically,
it _is_ brain damage...), but it's the only way to do everything
you say you want to do.
-- F
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