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authordas <das>2006-10-16 15:56:54 (GMT)
committerdas <das>2006-10-16 15:56:54 (GMT)
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* macosx/README: document CG antialiasing limit changes.
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-rw-r--r--macosx/README21
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diff --git a/macosx/README b/macosx/README
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--- a/macosx/README
+++ b/macosx/README
@@ -1,7 +1,7 @@
Tcl/Tk Mac OS X README
----------------------
-RCS: @(#) $Id: README,v 1.20 2006/08/18 07:47:10 das Exp $
+RCS: @(#) $Id: README,v 1.21 2006/10/16 15:56:54 das Exp $
This is the README file for the Mac OS X/Darwin version of Tcl/Tk.
@@ -101,17 +101,16 @@ and not those set by your shell configuration files).
the CoreGraphics routines - the code is primarily due to James Tittle. There
were numerous problems with the QD version, mostly due to the different drawing
model of QD & Tk. CG also trivially supports dashed lines, and the various end
-caps & miters. So this is a great improvement.
-The old QD code is retained for now, just in case there are any compatibility
-problems. To switch back to the QD drawing, just put:
+caps & miters. The old QD code is retained for now, just in case there are any
+compatibility problems. To switch back to the QD drawing, put
set tk::mac::useCGDrawing 0
-in your script before you do drawing. Also the CG drawing can anti-alias line
-drawing. However, anti-aliased thin lines look washed out, so the threshold for
-antialiasing is set to 3 pixel width lines. You can change this if you want by
-putting:
- set tk::mac::CGAntialiasLimit <limit>
-in your script before drawing, in which case only lines thinner that <limit>
-pixels will not be antialiased.
+in your script before you do drawing.
+All CG drawing is antialiased by default, but (outline) linewidth can be used to
+control whether a line/shape is drawn antialiased. The antialiasing threshold is
+0 by default (i.e. antialias everything), it can be changed by setting
+ set tk::mac::CGAntialiasLimit <limit>
+in your script before drawing, in which case lines (or shapes with outlines)
+thinner that <limit> pixels will not be antialiased.
- ATSUI text antialiasing by default uses the standard OS antialising settings.
Setting the global variable '::tk::mac::antialiasedtext' allows to control text