Patch for anti-aliased font in Mac OS X

[Jake Song]

Here is a small patch to use CoreGraphics anti-aliased fonts in Mac OS X.
CoreGraphics(=Quartz 2D) anti-aliasing looks much better than Carbon one.

Regards,
Jake Song

Index: src/macterm.c
===================================================================
RCS file: /cvsroot/emacs/emacs/src/macterm.c,v
retrieving revision 1.75
diff -u -r1.75 macterm.c
--- src/macterm.c    5 Jul 2004 07:01:02 -0000    1.75
+++ src/macterm.c    15 Jul 2004 19:24:04 -0000
@@ -728,6 +728,16 @@
   TextFont (gc->font->mac_fontnum);
   TextSize (gc->font->mac_fontsize);
   TextFace (gc->font->mac_fontface);
+#ifdef MAC_OS_X_VERSION_10_2
+  if (mode == srcCopy) {
+    // Anti-aliased font is supported only for srcOr mode.
+    short width = TextWidth(buf, 0, nchars * bytes_per_char);
+    Rect r;
+    SetRect(&r, x, y - gc->font->ascent, x + width, y + gc->font->descent);
+    EraseRect(&r);
+    mode = srcOr;
+  }
+#endif
   TextMode (mode);
 
   MoveTo (x, y);
@@ -8750,6 +8760,9 @@
   SetPortWindowPort (mwp->mWP);
 
   SizeWindow (mwp->mWP, FRAME_PIXEL_WIDTH (fp), FRAME_PIXEL_HEIGHT (fp),
false);
+#ifdef MAC_OS_X_VERSION_10_2
+  QDSwapPortTextFlags(GetWindowPort(mwp->mWP),
kQDUseCGTextRendering|kQDUseCGTextMetrics);
+#endif
 }