Merge Tk-Cocoa backport into core-8-5-branch

1 files changed, 522 insertions, 1817 deletions

diff --git a/macosx/tkMacOSXFont.c b/macosx/tkMacOSXFont.c
index 1cf8951..67ed044 100644
--- a/macosx/tkMacOSXFont.c
+++ b/macosx/tkMacOSXFont.c
@@ -2,38 +2,16 @@
  * tkMacOSXFont.c --
  *
  *	Contains the Macintosh implementation of the platform-independant
- *	font package interface. This version uses ATSU instead of Quickdraw.
+ *	font package interface.
  *
  * Copyright 2002-2004 Benjamin Riefenstahl, Benjamin.Riefenstahl@epost.de
- * Copyright (c) 2006-2008 Daniel A. Steffen <das@users.sourceforge.net>
- *
- * Some functions were originally copied verbatim from the QuickDraw version
- * of tkMacOSXFont.c, which had these copyright notices:
- *
- * Copyright (c) 1990-1994 The Regents of the University of California.
- * Copyright (c) 1994-1997 Sun Microsystems, Inc.
- * Copyright 2001, Apple Computer, Inc.
+ * Copyright (c) 2006-2009 Daniel A. Steffen <das@users.sourceforge.net>
+ * Copyright 2008-2009, Apple Inc.
  *
  * See the file "license.terms" for information on usage and redistribution
  * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * Todos:
- *
- * - Get away from Font Manager and Quickdraw functions as much as possible,
- *   replace with ATS functions instead.
- *
- * - Use Font Manager functions to translate ids from ATS to Font Manager
- *   instead of just assuming that they are the same.
- *
- * - Get a second font register going for fonts that are not assigned to a
- *   font family by the OS. On my system I have 27 fonts of that type,
- *   Hebrew, Arabic and Hindi fonts that actually come with the system.
- *   FMGetFontFamilyInstanceFromFont() returns -981 (kFMInvalidFontFamilyErr)
- *   for these and they are not listed when enumerating families, but they
- *   are when enumerating fonts directly. The problem that the OS sees may
- *   be that at least some of them do not contain any Latin characters. Note
- *   that such fonts can not be used for controls, because controls
- *   definitely require a family id (this assertion needs testing).
+ * RCS: @(#) $Id$
  */
 
 #include "tkMacOSXPrivate.h"
@@ -46,19 +24,6 @@
 */
 
 /*
- * Problem: The sum of two parts is not the same as the whole. In particular
- * the width of two separately measured strings will usually be larger than
- * the width of them pasted together. Tk has a design bug here, because it
- * generally assumes that this kind of arithmetic works.
- * To workaround this, #define TK_MAC_COALESCE_LINE to 1 below, we then avoid
- * lines that tremble and shiver while the cursor passes through them by
- * undercutting the system and behind the scenes pasting strings together that
- * look like they are on the same line and adjacent and that are drawn with
- * the same font. To do this we need some global data.
- */
-#define TK_MAC_COALESCE_LINE 0
-
-/*
  * The following structure represents our Macintosh-specific implementation
  * of a font object.
  */
@@ -67,87 +32,11 @@ typedef struct {
     TkFont font;		/* Stuff used by generic font package. Must
 				 * be first in structure. */
 
-    /*
-     * The ATSU view of the font and other text properties. Used for drawing
-     * and measuring.
-     */
-
-    ATSUFontID atsuFontId;	/* == FMFont. */
-    ATSUTextLayout atsuLayout;	/* ATSU layout object, representing the whole
-				 * text that ATSU sees with some option
-				 * bits. */
-    ATSUStyle atsuStyle;	/* ATSU style object, representing a run of
-				 * text with the same properties. */
-
-    /*
-     * The QuickDraw view of the font. Used to configure controls.
-     */
-
-    FMFontFamily qdFont;	/* == FMFontFamilyId, Carbon replacement for
-				 * QD face numbers. */
-    short qdSize;		/* Font size in points. */
-    short qdStyle;		/* QuickDraw style bits. */
+    NSFont *nsFont;
+    NSDictionary *nsAttributes;
 } MacFont;
 
 /*
- * Information about font families, initialized at startup time. Font
- * families are described by a mapping from UTF-8 names to MacOS font family
- * IDs. The whole list is kept as the sorted array "familyList", allocated
- * with ckrealloc().
- *
- * Note: This would have been easier, if we could just have used Tcl hash
- * arrays. Unfortunately there seems to be no pre-packaged
- * non-case-sensitive version of that available.
- */
-
-typedef struct {
-    const char * name;
-    FMFontFamily familyId;
-} MacFontFamily;
-
-static MacFontFamily * familyList = NULL;
-static int
-    familyListNextFree = 0,	/* The next free slot in familyList. */
-    familyListMaxValid = 0,	/* The top of the sorted area. */
-    familyListSize = 0;		/* The size of the whole array. */
-
-/*
- * A simple one-shot sub-allocator for fast and efficient allocation of
- * strings. Used by the familyList array for the names. These strings are
- * only allocated once at startup and never freed. If you ever need to
- * re-initialize this, you can just ckfree() all the StringBlocks in the list
- * and start over.
- */
-
-#define STRING_BLOCK_MAX (1024-8)	/* Make sizeof(StringBlock) ==
-					 * 1024. */
-typedef struct StringBlock {
-    struct StringBlock *next;		/* Starting from "stringMemory" these
-					 * blocks form a linked list. */
-    int nextFree;			/* Top of the used area in the
-					 * "strings" member. */
-    char strings[STRING_BLOCK_MAX];	/* The actual memory managed here. */
-} StringBlock;
-
-static StringBlock *stringMemory = NULL;
-
-#if TK_MAC_COALESCE_LINE
-static Tcl_DString currentLine;	/* The current line as seen so far. This
-				 * contains a Tcl_UniChar DString. */
-static int
-    currentY = -1,		/* The Y position (row in pixels) of the
-				 * current line. */
-    currentLeft = -1,		/* The left edge (pixels) of the current
-				 * line. */
-    currentRight = -1;		/* The right edge (pixels) of the current
-				 * line. */
-static const MacFont *currentFontPtr = NULL;
-				/* The font of the current line. */
-#endif /* TK_MAC_COALESCE_LINE */
-
-static int antialiasedTextEnabled;
-
-/*
  * The names for our "native" fonts.
  */
 
@@ -187,172 +76,227 @@ static const struct SystemFontMapEntry systemFontMap[] = {
 };
 #undef ThemeFont
 
-/*
- * Procedures used only in this file.
- */
-
-static void LayoutSetString(const MacFont *fontPtr,
-	const TkMacOSXDrawingContext *drawingContextPtr,
-	const UniChar * uchars, int ulen);
-
-/*
- * The actual workers.
- */
-
-static int MeasureStringWidth(const MacFont *fontPtr, int start, int end);
-
-#if TK_MAC_COALESCE_LINE
-static const Tcl_UniChar *UpdateLineBuffer(const MacFont *fontPtr,
-	const TkMacOSXDrawingContext *drawingContextPtr, const char *source,
-	int numBytes, int x, int y, int * offset);
-#endif /* TK_MAC_COALESCE_LINE */
-
-/*
- * Initialization and setup of a font data structure.
- */
-
-static const char *FamilyNameForFamilyID(FMFontFamily familyId);
-static void InitFont(FMFontFamily familyId, const char *familyName,
-	int size, int qdStyle, MacFont *fontPtr);
-static void InitATSUObjects(FMFontFamily familyId, short qdsize, short qdStyle,
-	ATSUFontID *fontIdPtr, ATSUTextLayout *layoutPtr, ATSUStyle *stylePtr);
-static void InitATSUStyle(ATSUFontID fontId, short ptSize, short qdStyle,
-	ATSUStyle style);
-static void SetFontFeatures(ATSUFontID fontId, int fixed, short size,
-	ATSUStyle style);
-static void AdjustFontHeight(MacFont *fontPtr);
-static void InitATSULayout(const TkMacOSXDrawingContext *drawingContextPtr,
-	ATSUTextLayout layout, int fixed);
-static void ReleaseFont(MacFont *fontPtr);
-
-/*
- * Finding fonts by name.
- */
-
-static const MacFontFamily *FindFontFamilyOrAlias(const char *name);
-static const MacFontFamily *FindFontFamilyOrAliasOrFallback(const char *name);
-
-/*
- * Doing interesting things with font families and fonts.
- */
-
-static void InitFontFamilies(void);
-static OSStatus GetFontFamilyName(FMFontFamily fontFamily, char *name,
-	int numBytes);
-
-/*
- * Accessor functions and internal utilities for the font family list.
- */
-
-static const MacFontFamily *AddFontFamily(const char *name,
-	FMFontFamily familyId);
-static const MacFontFamily *FindFontFamily(const char *name);
-static Tcl_Obj *EnumFontFamilies(void);
+static int antialiasedTextEnabled = -1;
+static NSCharacterSet *whitespaceCharacterSet = nil;
+static NSCharacterSet *lineendingCharacterSet = nil;
 
-static OSStatus FontFamilyEnumCallback(ATSFontFamilyRef family, void *refCon);
-static void SortFontFamilies(void);
-static int CompareFontFamilies(const void *vp1, const void *vp2);
-static const char *AddString(const char *in);
-
-static OSStatus GetThemeFontAndFamily(const ThemeFontID themeFontId,
-	FMFontFamily *fontFamily, unsigned char *fontName, SInt16 *fontSize,
-	Style *fontStyle);
-static void InitSystemFonts(TkMainInfo *mainPtr);
+static void GetTkFontAttributesForNSFont(NSFont *nsFont,
+	TkFontAttributes *faPtr);
+static NSFont *FindNSFont(const char *familyName, NSFontTraitMask traits,
+	NSInteger weight, CGFloat size, int fallbackToDefault);
+static void InitFont(NSFont *nsFont, const TkFontAttributes *reqFaPtr,
+	MacFont * fontPtr);
 static int CreateNamedSystemFont(Tcl_Interp *interp, Tk_Window tkwin,
 	const char* name, TkFontAttributes *faPtr);
-
+static void DrawCharsInContext(Display *display, Drawable drawable, GC gc,
+	Tk_Font tkfont, const char *source, int numBytes, int rangeStart,
+	int rangeLength, int x, int y, double angle);
+
+@interface NSFont(TKFont)
+- (NSFont *)bestMatchingFontForCharacters:(const UTF16Char *)characters
+	length:(NSUInteger)length attributes:(NSDictionary *)attributes
+	actualCoveredLength:(NSUInteger *)coveredLength;
+@end
+
+#pragma mark -
+#pragma mark Font Helpers:
+
+#define GetNSFontTraitsFromTkFontAttributes(faPtr) \
+	((faPtr)->weight == TK_FW_BOLD ? NSBoldFontMask : NSUnboldFontMask) | \
+	((faPtr)->slant == TK_FS_ITALIC ? NSItalicFontMask : NSUnitalicFontMask)
 
 /*
- *-------------------------------------------------------------------------
+ *---------------------------------------------------------------------------
  *
- * TkpFontPkgInit --
+ * GetTkFontAttributesForNSFont --
  *
- *	This procedure is called when an application is created. It
- *	initializes all the structures that are used by the
- *	platform-dependant code on a per application basis.
+ *	Fill in TkFontAttributes for given NSFont.
  *
  * Results:
  *	None.
  *
  * Side effects:
- *	Initialization of variables local to this file.
+ *	None.
  *
- *-------------------------------------------------------------------------
+ *---------------------------------------------------------------------------
  */
 
-void
-TkpFontPkgInit(
-    TkMainInfo *mainPtr)	/* The application being created. */
+static void
+GetTkFontAttributesForNSFont(
+    NSFont *nsFont,
+    TkFontAttributes *faPtr)
 {
-    InitFontFamilies();
-    InitSystemFonts(mainPtr);
+    NSFontTraitMask traits = [[NSFontManager sharedFontManager]
+	    traitsOfFont:nsFont];
 
-#if TK_MAC_COALESCE_LINE
-    Tcl_DStringInit(&currentLine);
-#endif
+    faPtr->family = Tk_GetUid([[nsFont familyName] UTF8String]);
+    faPtr->size = [nsFont pointSize];
+    faPtr->weight = (traits & NSBoldFontMask ? TK_FW_BOLD : TK_FW_NORMAL);
+    faPtr->slant = (traits & NSItalicFontMask ? TK_FS_ITALIC : TK_FS_ROMAN);
 }
 
 /*
- *-------------------------------------------------------------------------
+ *---------------------------------------------------------------------------
  *
- * InitSystemFonts --
+ * FindNSFont --
  *
- *	Initialize named system fonts.
+ *	Find NSFont for given attributes. Use default values for missing
+ *	attributes, and do a case-insensitive search for font family names
+ *	if necessary. If fallbackToDefault flag is set, use the system font
+ *	as a last resort.
  *
  * Results:
- *
  *	None.
  *
  * Side effects:
- *
  *	None.
  *
- *-------------------------------------------------------------------------
+ *---------------------------------------------------------------------------
  */
 
-static void
-InitSystemFonts(
-    TkMainInfo *mainPtr)
+static NSFont *
+FindNSFont(
+    const char *familyName,
+    NSFontTraitMask traits,
+    NSInteger weight,
+    CGFloat size,
+    int fallbackToDefault)
 {
-    Tcl_Interp *interp = mainPtr->interp;
-    Tk_Window tkwin = (Tk_Window) mainPtr->winPtr;
-    const struct SystemFontMapEntry *systemFont = systemFontMap;
-    TkFontAttributes fa;
+    NSFontManager *fm = [NSFontManager sharedFontManager];
+    NSFont *nsFont, *dflt = nil;
+    #define defaultFont (dflt ? dflt : (dflt = [NSFont systemFontOfSize:0]))
+    NSString *family;
 
-    /* force this for now */
-    if (!mainPtr->winPtr->mainPtr) {
-	mainPtr->winPtr->mainPtr = mainPtr;
+    if (familyName) {
+	family = [[[NSString alloc] initWithUTF8String:familyName] autorelease];
+    } else {
+	family = [defaultFont familyName];
     }
-    TkInitFontAttributes(&fa);
-    while (systemFont->systemName) {
-	Str255 fontName;
-	SInt16 fontSize;
-	Style  fontStyle;
-
-	if (GetThemeFont(systemFont->id, smSystemScript, fontName,
-		&fontSize, &fontStyle) == noErr) {
-	    CopyPascalStringToC(fontName, (char*)fontName);
-	    fa.family = Tk_GetUid((char*)fontName);
-	    fa.size = fontSize;
-	    fa.weight = (fontStyle & bold) ? TK_FW_BOLD : TK_FW_NORMAL;
-	    fa.slant = (fontStyle & italic) ? TK_FS_ITALIC : TK_FS_ROMAN;
-	    fa.underline = ((fontStyle & underline) != 0);
-	    CreateNamedSystemFont(interp, tkwin, systemFont->systemName, &fa);
-	    if (systemFont->tkName) {
-		CreateNamedSystemFont(interp, tkwin, systemFont->tkName, &fa);
-	    }
-	    if (systemFont->tkName1) {
-		CreateNamedSystemFont(interp, tkwin, systemFont->tkName1, &fa);
+    if (size == 0.0) {
+	size = [defaultFont pointSize];
+    }
+    nsFont = [fm fontWithFamily:family traits:traits weight:weight size:size];
+    if (!nsFont) {
+	NSArray *availableFamilies = [fm availableFontFamilies];
+	NSString *caseFamily = nil;
+
+	for (NSString *f in availableFamilies) {
+	    if ([family caseInsensitiveCompare:f] == NSOrderedSame) {
+		caseFamily = f;
+		break;
 	    }
 	}
-	systemFont++;
+	if (caseFamily) {
+	    nsFont = [fm fontWithFamily:caseFamily traits:traits weight:weight
+		    size:size];
+	}
     }
-    fa.family = Tk_GetUid("monaco");
-    fa.size = 11;
-    fa.weight = TK_FW_NORMAL;
-    fa.slant = TK_FS_ROMAN;
-    fa.underline = 0;
-    CreateNamedSystemFont(interp, tkwin, "TkFixedFont", &fa);
+    if (!nsFont) {
+	nsFont = [NSFont fontWithName:family size:size];
+    }
+    if (!nsFont && fallbackToDefault) {
+	nsFont = [fm convertFont:defaultFont toFamily:family];
+	nsFont = [fm convertFont:nsFont toSize:size];
+	nsFont = [fm convertFont:nsFont toHaveTrait:traits];
+    }
+    #undef defaultFont
+    return nsFont;
+}
+
+/*
+ *---------------------------------------------------------------------------
+ *
+ * InitFont --
+ *
+ *	Helper for TkpGetNativeFont() and TkpGetFontFromAttributes().
+ *
+ * Results:
+ *	Fills the MacFont structure.
+ *
+ * Side effects:
+ *	Memory allocated.
+ *
+ *---------------------------------------------------------------------------
+ */
+
+static void
+InitFont(
+    NSFont *nsFont,
+    const TkFontAttributes *reqFaPtr,	/* Can be NULL */
+    MacFont *fontPtr)
+{
+    TkFontAttributes *faPtr;
+    TkFontMetrics *fmPtr;
+    NSDictionary *nsAttributes;
+    NSRect bounds;
+    CGFloat kern = 0.0;
+    NSFontRenderingMode renderingMode = NSFontDefaultRenderingMode;
+    int ascent, descent/*, dontAA*/;
+    static const UniChar ch[] = {'.', 'W', ' ', 0xc4, 0xc1, 0xc2, 0xc3, 0xc7};
+			/* ., W, Space, Auml, Aacute, Acirc, Atilde, Ccedilla */
+    #define nCh (sizeof(ch) / sizeof(UniChar))
+    CGGlyph glyphs[nCh];
+    CGRect boundingRects[nCh];
+
+    fontPtr->font.fid = (Font) fontPtr;
+    faPtr = &fontPtr->font.fa;
+    if (reqFaPtr) {
+	*faPtr = *reqFaPtr;
+    } else {
+	TkInitFontAttributes(faPtr);
+    }
+    fontPtr->nsFont = nsFont;
+    // some don't like antialiasing on fixed-width even if bigger than limit
+//    dontAA = [nsFont isFixedPitch] && fontPtr->font.fa.size <= 10;
+    if (antialiasedTextEnabled >= 0/* || dontAA*/) {
+	renderingMode = (antialiasedTextEnabled == 0/* || dontAA*/) ?
+		NSFontIntegerAdvancementsRenderingMode :
+		NSFontAntialiasedRenderingMode;
+    }
+    nsFont = [nsFont screenFontWithRenderingMode:renderingMode];
+    GetTkFontAttributesForNSFont(nsFont, faPtr);
+    fmPtr = &fontPtr->font.fm;
+    fmPtr->ascent = floor([nsFont ascender] + [nsFont leading] + 0.5);
+    fmPtr->descent = floor(-[nsFont descender] + 0.5);
+    fmPtr->maxWidth = [nsFont maximumAdvancement].width;
+    fmPtr->fixed = [nsFont isFixedPitch];   /* Does not work for all fonts */
+
+    /*
+     * The ascent, descent and fixed fields are not correct for all fonts, as
+     * a workaround deduce that info from the metrics of some typical glyphs,
+     * along with screenfont kerning (space advance difference to printer font)
+     */
+
+    bounds = [nsFont boundingRectForFont];
+    if (CTFontGetGlyphsForCharacters((CTFontRef) nsFont, ch, glyphs, nCh)) {
+	fmPtr->fixed = [nsFont advancementForGlyph:glyphs[0]].width ==
+		[nsFont advancementForGlyph:glyphs[1]].width;
+	bounds = NSRectFromCGRect(CTFontGetBoundingRectsForGlyphs((CTFontRef)
+		nsFont, kCTFontDefaultOrientation, ch, boundingRects, nCh));
+	kern = [nsFont advancementForGlyph:glyphs[2]].width -
+		[fontPtr->nsFont advancementForGlyph:glyphs[2]].width;
+    }
+    descent = floor(-bounds.origin.y + 0.5);
+    ascent = floor(bounds.size.height + bounds.origin.y + 0.5);
+    if (ascent > fmPtr->ascent) {
+	fmPtr->ascent = ascent;
+    }
+    if (descent > fmPtr->descent) {
+	fmPtr->descent = descent;
+    }
+    nsAttributes = [NSDictionary dictionaryWithObjectsAndKeys:
+	    nsFont, NSFontAttributeName,
+	    [NSNumber numberWithInt:faPtr->underline ?
+		NSUnderlineStyleSingle|NSUnderlinePatternSolid :
+		NSUnderlineStyleNone], NSUnderlineStyleAttributeName,
+	    [NSNumber numberWithInt:faPtr->overstrike ?
+		NSUnderlineStyleSingle|NSUnderlinePatternSolid :
+		NSUnderlineStyleNone], NSStrikethroughStyleAttributeName,
+	    [NSNumber numberWithInt:fmPtr->fixed ? 0 : 1],
+		NSLigatureAttributeName,
+	    [NSNumber numberWithDouble:kern], NSKernAttributeName, nil];
+    fontPtr->nsAttributes = TkMacOSXMakeUncollectableAndRetain(nsAttributes);
+    #undef nCh
 }
 
 /*
@@ -383,37 +327,84 @@ CreateNamedSystemFont(
     TkDeleteNamedFont(NULL, tkwin, name);
     return TkCreateNamedFont(interp, tkwin, name, faPtr);
 }
+
+#pragma mark -
+#pragma mark Font handling:
 
 /*
- *---------------------------------------------------------------------------
+ *-------------------------------------------------------------------------
+ *
+ * TkpFontPkgInit --
  *
- * GetThemeFontAndFamily --
+ *	This procedure is called when an application is created. It
+ *	initializes all the structures that are used by the
+ *	platform-dependant code on a per application basis.
+ *	Note that this is called before TkpInit() !
  *
- *	Wrapper around the GetThemeFont and FMGetFontFamilyFromName APIs.
+ * Results:
+ *	None.
  *
- *---------------------------------------------------------------------------
+ * Side effects:
+ *	Initialize named system fonts.
+ *
+ *-------------------------------------------------------------------------
  */
 
-OSStatus
-GetThemeFontAndFamily(
-    const ThemeFontID themeFontId,
-    FMFontFamily* fontFamily,
-    unsigned char *fontName,
-    SInt16 *fontSize,
-    Style *fontStyle)
+void
+TkpFontPkgInit(
+    TkMainInfo *mainPtr)	/* The application being created. */
 {
-    OSStatus err = ChkErr(GetThemeFont, themeFontId, smSystemScript, fontName,
-	    fontSize, fontStyle);
+    Tcl_Interp *interp = mainPtr->interp;
+    Tk_Window tkwin = (Tk_Window) mainPtr->winPtr;
+    const struct SystemFontMapEntry *systemFont = systemFontMap;
+    NSFont *nsFont;
+    TkFontAttributes fa;
+    NSMutableCharacterSet *cs;
+    NSAutoreleasePool *pool = [NSAutoreleasePool new];
 
-    if (err == noErr) {
-	*fontFamily = FMGetFontFamilyFromName(fontName);
-	if (*fontFamily == kInvalidFontFamily) {
-	    err = kFMInvalidFontFamilyErr;
-	    TkMacOSXDbgMsg("FMGetFontFamilyFromName failed.");
+    /* force this for now */
+    if (!mainPtr->winPtr->mainPtr) {
+	mainPtr->winPtr->mainPtr = mainPtr;
+    }
+    while (systemFont->systemName) {
+	nsFont = (NSFont*) CTFontCreateUIFontForLanguage(
+		HIThemeGetUIFontType(systemFont->id), 0, NULL);
+	if (nsFont) {
+	    TkInitFontAttributes(&fa);
+	    GetTkFontAttributesForNSFont(nsFont, &fa);
+	    CreateNamedSystemFont(interp, tkwin, systemFont->systemName, &fa);
+	    if (systemFont->tkName) {
+		CreateNamedSystemFont(interp, tkwin, systemFont->tkName, &fa);
+	    }
+	    if (systemFont->tkName1) {
+		CreateNamedSystemFont(interp, tkwin, systemFont->tkName1, &fa);
+	    }
+	    CFRelease(nsFont);
 	}
+	systemFont++;
     }
-
-    return err;
+    TkInitFontAttributes(&fa);
+    nsFont = (NSFont*) CTFontCreateUIFontForLanguage(
+	    kCTFontUserFixedPitchFontType, 11, NULL);
+    if (nsFont) {
+	GetTkFontAttributesForNSFont(nsFont, &fa);
+	CFRelease(nsFont);
+    } else {
+	fa.family = Tk_GetUid("Monaco");
+	fa.size = 11;
+	fa.weight = TK_FW_NORMAL;
+	fa.slant = TK_FS_ROMAN;
+    }
+    CreateNamedSystemFont(interp, tkwin, "TkFixedFont", &fa);
+    if (!whitespaceCharacterSet) {
+	whitespaceCharacterSet = [[NSCharacterSet
+		whitespaceAndNewlineCharacterSet] retain];
+	cs = [whitespaceCharacterSet mutableCopy];
+	[cs removeCharactersInString:@" "];
+	lineendingCharacterSet = [cs copy];
+	[cs release];
+    }
+    [pool drain];
 }
 
 /*
@@ -447,12 +438,9 @@ TkpGetNativeFont(
     Tk_Window tkwin,		/* For display where font will be used. */
     const char *name)		/* Platform-specific font name. */
 {
+    MacFont *fontPtr = NULL;
     ThemeFontID themeFontId;
-    FMFontFamily fontFamily;
-    Str255 fontName;
-    SInt16 fontSize;
-    Style  fontStyle;
-    MacFont *fontPtr;
+    CTFontRef ctFont;
 
     if (strcmp(name, SYSTEMFONT_NAME) == 0) {
 	themeFontId = kThemeSystemFont;
@@ -463,14 +451,12 @@ TkpGetNativeFont(
     } else {
 	return NULL;
     }
-    if (GetThemeFontAndFamily(themeFontId, &fontFamily, fontName, &fontSize,
-	    &fontStyle) != noErr) {
-	return NULL;
+    ctFont = CTFontCreateUIFontForLanguage(HIThemeGetUIFontType(
+	    themeFontId), 0, NULL);
+    if (ctFont) {
+	fontPtr = (MacFont *) ckalloc(sizeof(MacFont));
+	InitFont((NSFont*) ctFont, NULL, fontPtr);
     }
-    CopyPascalStringToC(fontName, (char*)fontName);
-
-    fontPtr = (MacFont *) ckalloc(sizeof(MacFont));
-    InitFont(fontFamily, (char*)fontName, fontSize, fontStyle, fontPtr);
 
     return (TkFont *) fontPtr;
 }
@@ -516,41 +502,34 @@ TkpGetFontFromAttributes(
     const TkFontAttributes *faPtr)
 				/* Set of attributes to match. */
 {
-    short qdStyle;
-    FMFontFamily familyId;
-    const char *name;
-    const MacFontFamily *familyPtr;
     MacFont *fontPtr;
+    int points = TkFontGetPoints(tkwin, faPtr->size);
+    NSFontTraitMask traits = GetNSFontTraitsFromTkFontAttributes(faPtr);
+    NSInteger weight = (faPtr->weight == TK_FW_BOLD ? 9 : 5);
+    NSFont *nsFont;
 
-    familyId = GetAppFont();
-    name = NULL;
-    qdStyle = 0;
+    nsFont = FindNSFont(faPtr->family, traits, weight, points, 0);
+    if (!nsFont) {
+	char *const *aliases = TkFontGetAliasList(faPtr->family);
 
-    if (faPtr->family != NULL) {
-	familyPtr = FindFontFamilyOrAliasOrFallback(faPtr->family);
-	if (familyPtr != NULL) {
-	    name = familyPtr->name;
-	    familyId = familyPtr->familyId;
+	while (aliases && !nsFont) {
+	    nsFont = FindNSFont(*aliases++, traits, weight, points, 0);
 	}
     }
-
-    if (faPtr->weight != TK_FW_NORMAL) {
-	qdStyle |= bold;
-    }
-    if (faPtr->slant != TK_FS_ROMAN) {
-	qdStyle |= italic;
+    if (!nsFont) {
+	nsFont = FindNSFont(faPtr->family, traits, weight, points, 1);
     }
-    if (faPtr->underline) {
-	qdStyle |= underline;
+    if (!nsFont) {
+	Tcl_Panic("Could not deternmine NSFont from TkFontAttributes");
     }
     if (tkFontPtr == NULL) {
 	fontPtr = (MacFont *) ckalloc(sizeof(MacFont));
     } else {
 	fontPtr = (MacFont *) tkFontPtr;
-	ReleaseFont(fontPtr);
+	TkpDeleteFont(tkFontPtr);
     }
-    InitFont(familyId, name, TkFontGetPoints(tkwin, faPtr->size),
-	    qdStyle, fontPtr);
+    CFRetain(nsFont); /* Always needed to allow unconditional CFRelease below */
+    InitFont(nsFont, faPtr, fontPtr);
 
     return (TkFont *) fontPtr;
 }
@@ -578,7 +557,10 @@ void
 TkpDeleteFont(
     TkFont *tkFontPtr)		/* Token of font to be deleted. */
 {
-    ReleaseFont((MacFont *) tkFontPtr);
+    MacFont *fontPtr = (MacFont *) tkFontPtr;
+
+    TkMacOSXMakeCollectableAndRelease(fontPtr->nsAttributes);
+    CFRelease(fontPtr->nsFont); /* Either a CTFontRef or a CFRetained NSFont */
 }
 
 /*
@@ -604,7 +586,14 @@ TkpGetFontFamilies(
     Tcl_Interp *interp,		/* Interp to hold result. */
     Tk_Window tkwin)		/* For display to query. */
 {
-    Tcl_SetObjResult(interp, EnumFontFamilies());
+    Tcl_Obj *resultPtr = Tcl_NewListObj(0, NULL);
+    NSArray *list = [[NSFontManager sharedFontManager] availableFontFamilies];
+
+    for (NSString *family in list) {
+	Tcl_ListObjAppendElement(NULL, resultPtr,
+		Tcl_NewStringObj([family UTF8String], -1));
+    }
+    Tcl_SetObjResult(interp, resultPtr);
 }
 
 /*
@@ -630,10 +619,23 @@ TkpGetSubFonts(
     Tcl_Interp *interp,		/* Interp to hold result. */
     Tk_Font tkfont)		/* Font object to query. */
 {
-    /* We don't know much about our fallback fonts, ATSU does all that for
-     * us. We could use ATSUMatchFont to implement this function. But as
-     * the information is only used for testing, such an effort seems not
-     * very useful. */
+    MacFont *fontPtr = (MacFont *) tkfont;
+    Tcl_Obj *resultPtr = Tcl_NewListObj(0, NULL);
+
+    if (fontPtr->nsFont) {
+	NSArray *list = [[fontPtr->nsFont fontDescriptor]
+		objectForKey:NSFontCascadeListAttribute];
+
+	for (NSFontDescriptor *subFontDesc in list) {
+	    NSString *family = [subFontDesc objectForKey:NSFontFamilyAttribute];
+
+	    if (family) {
+		Tcl_ListObjAppendElement(NULL, resultPtr,
+			Tcl_NewStringObj([family UTF8String], -1));
+	    }
+	}
+    }
+    Tcl_SetObjResult(interp, resultPtr);
 }
 
 /*
@@ -660,72 +662,23 @@ TkpGetFontAttrsForChar(
     Tcl_UniChar c,		/* Character of interest */
     TkFontAttributes* faPtr)	/* Output: Font attributes */
 {
-    const MacFont * fontPtr = (const MacFont *) tkfont;
-    UniChar uchar = c;
-    TkMacOSXDrawingContext drawingContext;
-    OSStatus err;
-    ATSUFontID fontId;
-    UniCharArrayOffset changedOffset;
-    UniCharCount changedLength;
-
-    /*
-     * Most of the attributes are just copied from the base font. This
-     * assumes that all fonts can have all attributes.
-     */
+    MacFont *fontPtr = (MacFont *) tkfont;
+    NSFont *nsFont = fontPtr->nsFont;
 
     *faPtr = fontPtr->font.fa;
+    if (nsFont && ![[nsFont coveredCharacterSet] characterIsMember:c]) {
+	UTF16Char ch = c;
 
-    /*
-     * But the name of the actual font may still differ, so we activate the
-     * string as an ATSU layout and ask ATSU about the fallback.
-     */
-    if (!TkMacOSXSetupDrawingContext(Tk_WindowId(tkwin), NULL, 1,
-	    &drawingContext)) {
-	Tcl_Panic("TkpGetFontAttrsForChar: drawingContext not setup");
-    }
-
-    LayoutSetString(fontPtr, &drawingContext, &uchar, 1);
-
-    fontId = fontPtr->atsuFontId;
-    err = ATSUMatchFontsToText(
-	fontPtr->atsuLayout, 0, 1,
-	&fontId, &changedOffset, &changedLength);
-    if (err != kATSUFontsMatched && err != noErr) {
-	TkMacOSXDbgMsg("Can't match \\u%04X", (unsigned) c);
-    }
-
-    if (err == kATSUFontsMatched) {
-	/*
-	 * A fallback was used and the actual font is in fontId. Determine
-	 * the name.
-	 */
-
-	FMFontFamily fontFamilyId;
-	FMFontStyle fontStyle;
-	int i;
-
-	err = ChkErr(FMGetFontFamilyInstanceFromFont, fontId, &fontFamilyId,
-		&fontStyle);
-	if (err == noErr) {
-	    /*
-	     * Find the canonical name in our global list.
-	     */
-
-	    for (i=0; i<familyListMaxValid; ++i) {
-		if (fontFamilyId == familyList[i].familyId) {
-		    faPtr->family = familyList[i].name;
-		    break;
-		}
-	    }
-	    if (i >= familyListMaxValid) {
-		TkMacOSXDbgMsg("Can't find font %d for \\u%04X", fontFamilyId,
-			(unsigned) c);
-	    }
+	nsFont = [nsFont bestMatchingFontForCharacters:&ch
+		length:1 attributes:nil actualCoveredLength:NULL];
+	if (nsFont) {
+	    GetTkFontAttributesForNSFont(nsFont, faPtr);
 	}
     }
-
-    TkMacOSXRestoreDrawingContext(&drawingContext);
 }
+
+#pragma mark -
+#pragma mark Measuring and drawing:
 
 /*
  *---------------------------------------------------------------------------
@@ -837,263 +790,128 @@ TkpMeasureCharsInContext(
 				 * terminating character. */
 {
     const MacFont *fontPtr = (const MacFont *) tkfont;
-    int curX = -1, curByte = 0;
-    UniChar *uchars;
-    int ulen;
-    UniCharArrayOffset urstart, urlen, urend;
-    Tcl_DString ucharBuffer;
-    int forceCharacterMode = 0;
-
-    /*
-     * Sanity checks.
-     */
-
-    if (rangeStart < 0 || (rangeStart+rangeLength) > numBytes) {
-	TkMacOSXDbgMsg("Bad parameters");
+    NSString *string;
+    NSAttributedString *attributedString;
+    CTTypesetterRef typesetter;
+    CFIndex start, len;
+    CFRange range = {0, 0};
+    CTLineRef line;
+    CGFloat offset = 0;
+    CFIndex index;
+    double width;
+    int length, fit;
+
+    if (rangeStart < 0 || rangeLength <= 0 ||
+	    rangeStart + rangeLength > numBytes ||
+	    (maxLength == 0 && !(flags & TK_AT_LEAST_ONE))) {
 	*lengthPtr = 0;
 	return 0;
     }
-
-    /*
-     * Get simple no-brainers out of the way.
-     */
-
-    if (rangeLength == 0 || (maxLength == 0 && !(flags & TK_AT_LEAST_ONE))) {
-	*lengthPtr = 0;
-	return 0;
+#if 0
+    /* Back-compatibility with ATSUI renderer, appears not to be needed */
+    if (rangeStart == 0 && maxLength == 1 && (flags & TK_ISOLATE_END) &&
+	    !(flags & TK_AT_LEAST_ONE)) {
+	length = 0;
+	fit = 0;
+	goto done;
+    }
+#endif
+    if (maxLength > 32767) {
+	maxLength = 32767;
+    }
+    string = [[NSString alloc] initWithBytesNoCopy:(void*)source
+		length:numBytes encoding:NSUTF8StringEncoding freeWhenDone:NO];
+    if (!string) {
+	length = 0;
+	fit = rangeLength;
+	goto done;
+    }
+    attributedString = [[NSAttributedString alloc] initWithString:string
+	    attributes:fontPtr->nsAttributes];
+    typesetter = CTTypesetterCreateWithAttributedString(
+	    (CFAttributedStringRef)attributedString);
+    start = Tcl_NumUtfChars(source, rangeStart);
+    len = Tcl_NumUtfChars(source + rangeStart, rangeLength);
+    if (start > 0) {
+	range.length = start;
+	line = CTTypesetterCreateLine(typesetter, range);
+	offset = CTLineGetTypographicBounds(line, NULL, NULL, NULL);
+	CFRelease(line);
     }
-
-    Tcl_DStringInit(&ucharBuffer);
-    uchars = Tcl_UtfToUniCharDString(source, numBytes, &ucharBuffer);
-    ulen = Tcl_DStringLength(&ucharBuffer) / sizeof(Tcl_UniChar);
-    LayoutSetString(fontPtr, NULL, uchars, ulen);
-
-    urstart = Tcl_NumUtfChars(source, rangeStart);
-    urlen = Tcl_NumUtfChars(source+rangeStart,rangeLength);
-    urend = urstart + urlen;
-
     if (maxLength < 0) {
-	curX = MeasureStringWidth(fontPtr, urstart, urend);
-	curByte = rangeLength;
+	index = len;
+	range.length = len;
+	line = CTTypesetterCreateLine(typesetter, range);
+	width = CTLineGetTypographicBounds(line, NULL, NULL, NULL);
+	CFRelease(line);
     } else {
-	UniCharArrayOffset offset = 0;
-	OSStatus err;
-
-	/*
-	 * Have some upper limit on the size actually used.
-	 */
-
-	if (maxLength > 32767) {
-	    maxLength = 32767;
-	}
-
-	offset = urstart;
-	err = noErr;
-
-	if (maxLength > 1) {
-	    /*
-	     * Let the system do some work by calculating a line break.
-	     *
-	     * Somehow ATSUBreakLine seems to assume that it needs at least
-	     * one pixel padding. So we add one to the limit. Note also
-	     * that ATSUBreakLine sometimes runs into an endless loop when
-	     * the third parameter is equal or less than IntToFixed(2), so we
-	     * need at least IntToFixed(3) (at least that's the current state
-	     * of my knowledge).
-	     */
-
-	    err = ATSUBreakLine(fontPtr->atsuLayout, urstart,
-		    IntToFixed(maxLength+1), false, /* !iUseAsSoftLineBreak */
-		    &offset);
-
-	    /*
-	     * There is no way to signal an error from this routine, so we
-	     * use predefined offset=urstart and otherwise ignore the
-	     * possibility.
-	     */
-
-	    if ((err != noErr) && (err != kATSULineBreakInWord)) {
-		TkMacOSXDbgMsg("ATSUBreakLine failed: %ld for '%.*s'", err,
-			rangeLength, source+rangeStart);
-	    }
-
-#ifdef TK_MAC_DEBUG_FONTS
-	    TkMacOSXDbgMsg("measure: '%.*s', break offset=%ld, errcode=%ld",
-		    rangeLength, source+rangeStart, offset, err);
-#endif
-
-	    /*
-	     * ATSUBreakLine includes the whitespace that separates words,
-	     * but we don't want that. Besides, ATSUBreakLine thinks that
-	     * spaces don't occupy pixels at the end of the break, which is
-	     * also something we like to decide for ourself.
-	     */
-
-	    while ((offset > urstart) && (uchars[offset-1] == ' ')) {
-		offset--;
-	    }
-	}
-
-	/*
-	 * Fix up left-overs for the TK_WHOLE_WORDS case.
-	 */
+	double maxWidth = maxLength + offset;
+	NSCharacterSet *cs;
 
+	index = start;
 	if (flags & TK_WHOLE_WORDS) {
-	    if ((flags & TK_AT_LEAST_ONE) && ((offset == urstart)
-		    || ((offset != urend) && (uchars[offset] != ' ')))) {
-		/*
-		 * With TK_AT_LEAST_ONE, if we are the the start of the
-		 * range, we need to add at least one character.  If we are
-		 * not at the end of a word, we must be in the middle of the
-		 * first word still and we want to just use what we have so
-		 * far.  In both cases we still need to find the right
-		 * character boundary, so we set a flag that gets us into the
-		 * code for character mode below.
-		 */
-
-		forceCharacterMode = 1;
-
-	    } else {
-		/*
-		 * If we are not at the end of a word, we must be in the
-		 * middle of the first word still.  Return 0.
-		 */
-
-		if ((offset != urend) && (uchars[offset] != ' ')) {
-		    offset = urstart;
-		    curX = 0;
-		}
+	    index = CTTypesetterSuggestLineBreak(typesetter, start, maxWidth);
+	    if (index <= start && (flags & TK_AT_LEAST_ONE)) {
+		flags &= ~TK_WHOLE_WORDS;
 	    }
 	}
-
-	if (offset > urend) {
-	    offset = urend;
+	if (index <= start && !(flags & TK_WHOLE_WORDS)) {
+	    index = CTTypesetterSuggestClusterBreak(typesetter, start, maxWidth);
 	}
-
-	/*
-	 * If "flags" says that we don't actually want a word break, we need
-	 * to find the next character break ourself, as ATSUBreakLine will
-	 * only give us word breaks.  Do a simple linear search.
-	 *
-	 * Even do this, if ATSUBreakLine returned kATSULineBreakInWord,
-	 * because we have not accounted correctly for all of the flags yet,
-	 * like TK_AT_LEAST_ONE.
-	 */
-
-	if ((!(flags & TK_WHOLE_WORDS) || forceCharacterMode) && (offset <= urend)) {
-	    UniCharArrayOffset lastOffset = offset;
-	    UniCharArrayOffset nextoffset;
-	    int lastX = -1;
-	    int wantonemorechar = -1; /* undecided */
-
-	    while (offset <= urend) {
-		if (flags & TK_ISOLATE_END) {
-		    LayoutSetString(fontPtr, NULL, uchars, offset);
-		}
-		curX = MeasureStringWidth(fontPtr, urstart, offset);
-
-#ifdef TK_MAC_DEBUG_FONTS
-		TkMacOSXDbgMsg("measure: '%.*s', try until=%ld, width=%d",
-			rangeLength, source+rangeStart, offset, curX);
-#endif
-
-		if (curX > maxLength) {
-		    /*
-		     * Even if we are over the limit, we may want another
-		     * character in some situations. Than we keep looking
-		     * for one more character.
-		     */
-
-		    if (wantonemorechar == -1) {
-			wantonemorechar = ((flags & TK_AT_LEAST_ONE) &&
-				(lastOffset == urstart)) ||
-				((flags & TK_PARTIAL_OK) &&
-				(lastX != maxLength));
-			if (!wantonemorechar) {
-			    break;
-			}
-			lastX = curX;
-		    }
-
-		    /*
-		     * There may belong combining marks to this character.
-		     * Wait for a new curX to collect them all.
-		     */
-
-		    if (lastX != curX) {
-			break;
-		    }
-		}
-
-		/*
-		 * Save this position, so we can come back to it.
-		 */
-
-		lastX = curX;
-		lastOffset = offset;
-
-		/*
-		 * Increment offset by one character, taking combining marks
-		 * into account.
-		 */
-
-		if (offset >= urend) {
-		    break;
-		}
-		nextoffset = 0;
-		if (flags & TK_ISOLATE_END) {
-		    LayoutSetString(fontPtr, NULL, uchars, ulen);
-		}
-		err = ChkErr(ATSUNextCursorPosition, fontPtr->atsuLayout,
-			offset, kATSUByCluster, &nextoffset);
-		if (err != noErr) {
-		    break;
-		}
-		if (nextoffset <= offset) {
-#ifdef TK_MAC_DEBUG_FONTS
-		    TkMacOSXDbgMsg("ATSUNextCursorPosition: Can't move further"
-			    " (shouldn't happen, bad data?)");
-#endif
-		    break;
-		}
-
-		offset = nextoffset;
-	    }
-
-	    /*
-	     * We have overshot one character, so backup one position.
-	     */
-
-	    curX = lastX;
-	    offset = lastOffset;
+	cs = (index < len || (flags & TK_WHOLE_WORDS)) ?
+		whitespaceCharacterSet : lineendingCharacterSet;
+	while (index > start &&
+		[cs characterIsMember:[string characterAtIndex:(index - 1)]]) {
+	    index--;
+	}
+	if (index <= start && (flags & TK_AT_LEAST_ONE)) {
+	    index = start + 1;
+	}
+	if (index > 0) {
+	    range.length = index;
+	    line = CTTypesetterCreateLine(typesetter, range);
+	    width = CTLineGetTypographicBounds(line, NULL, NULL, NULL);
+	    CFRelease(line);
+	} else {
+	    width = 0;
+	}
+	if (width < maxWidth && (flags & TK_PARTIAL_OK) && index < len) {
+	    range.length = ++index;
+	    line = CTTypesetterCreateLine(typesetter, range);
+	    width = CTLineGetTypographicBounds(line, NULL, NULL, NULL);
+	    CFRelease(line);
 	}
 
-	if (curX < 0) {
-	    if (flags & TK_ISOLATE_END) {
-		LayoutSetString(fontPtr, NULL, uchars, offset);
-	    }
-	    curX = MeasureStringWidth(fontPtr, urstart, offset);
+        /* The call to CTTypesetterSuggestClusterBreak above will always
+           return at least one character regardless of whether it exceeded
+           it or not.  Clean that up now. */
+	while (width > maxWidth && !(flags & TK_PARTIAL_OK) && index > start) {
+	    range.length = --index;
+	    line = CTTypesetterCreateLine(typesetter, range);
+	    width = CTLineGetTypographicBounds(line, NULL, NULL, NULL);
+	    CFRelease(line);
 	}
 
-	curByte = Tcl_UtfAtIndex(source, offset) - source;
-	curByte -= rangeStart;
     }
-
-    Tcl_DStringFree(&ucharBuffer);
-
+    CFRelease(typesetter);
+    [attributedString release];
+    [string release];
+    length = ceil(width - offset);
+    fit = (Tcl_UtfAtIndex(source, index) - source) - rangeStart;
+done:
 #ifdef TK_MAC_DEBUG_FONTS
-    TkMacOSXDbgMsg("measure: '%.*s', maxLength=%d, flags=%s%s%s%s "
-	    "-> width=%d, bytes=%d",
-	    rangeLength, source+rangeStart, maxLength,
+    TkMacOSXDbgMsg("measure: source=\"%s\" range=\"%.*s\" maxLength=%d "
+	    "flags='%s%s%s%s' -> width=%d bytesFit=%d\n", source, rangeLength,
+	    source+rangeStart, maxLength,
 	    flags & TK_PARTIAL_OK   ? "partialOk "  : "",
 	    flags & TK_WHOLE_WORDS  ? "wholeWords " : "",
 	    flags & TK_AT_LEAST_ONE ? "atLeastOne " : "",
 	    flags & TK_ISOLATE_END  ? "isolateEnd " : "",
-	    curX, curByte);
+	    length, fit);
+//if (!(rangeLength==1 && rangeStart == 0)) fprintf(stderr, "   measure len=%d (max=%d, w=%.0f) from %d (nb=%d): source=\"%s\": index=%d return %d\n",rangeLength,maxLength,width,rangeStart,numBytes, source+rangeStart, index, fit);
 #endif
-
-    *lengthPtr = curX;
-    return curByte;
+    *lengthPtr = length;
+    return fit;
 }
 
 /*
@@ -1133,8 +951,8 @@ Tk_DrawChars(
     int x, int y)		/* Coordinates at which to place origin of the
 				 * string when drawing. */
 {
-    TkpDrawCharsInContext(display, drawable, gc, tkfont, source, numBytes,
-	    0, numBytes, x, y);
+    DrawCharsInContext(display, drawable, gc, tkfont, source, numBytes,
+	    0, numBytes, x, y, 0.0);
 }
 
 /*
@@ -1178,1219 +996,148 @@ TkpDrawCharsInContext(
 				 * whole (not just the range) string when
 				 * drawing. */
 {
-    const MacFont * fontPtr = (const MacFont *) tkfont;
+    DrawCharsInContext(display, drawable, gc, tkfont, source, numBytes,
+	    rangeStart, rangeLength, x, y, 0.0);
+}
+
+static void
+DrawCharsInContext(
+    Display *display,		/* Display on which to draw. */
+    Drawable drawable,		/* Window or pixmap in which to draw. */
+    GC gc,			/* Graphics context for drawing characters. */
+    Tk_Font tkfont,		/* Font in which characters will be drawn; must
+				 * be the same as font used in GC. */
+    const char * source,	/* UTF-8 string to be displayed. Need not be
+				 * '\0' terminated. All Tk meta-characters
+				 * (tabs, control characters, and newlines)
+				 * should be stripped out of the string that
+				 * is passed to this function. If they are not
+				 * stripped out, they will be displayed as
+				 * regular printing characters. */
+    int numBytes,		/* Number of bytes in string. */
+    int rangeStart,		/* Index of first byte to draw. */
+    int rangeLength,		/* Length of range to draw in bytes. */
+    int x, int y,		/* Coordinates at which to place origin of the
+				 * whole (not just the range) string when
+				 * drawing. */
+    double angle)
+{
+    const MacFont *fontPtr = (const MacFont *) tkfont;
+    NSString *string;
+    NSMutableDictionary *attributes;
+    NSAttributedString *attributedString;
+    CTTypesetterRef typesetter;
+    CFIndex start, len;
+    CTLineRef line;
     MacDrawable *macWin = (MacDrawable *) drawable;
-    Fixed fx, fy;
-    int ulen, urstart, urlen;
-    const UniChar * uchars;
-    int lineOffset;
     TkMacOSXDrawingContext drawingContext;
-#if !TK_MAC_COALESCE_LINE
-    Tcl_DString runString;
-#endif
-
-    if (!TkMacOSXSetupDrawingContext(drawable, gc, tkMacOSXUseCGDrawing,
-	    &drawingContext)) {
+    CGContextRef context;
+    CGColorRef fg;
+    NSFont *nsFont;
+    CGAffineTransform t;
+    int h;
+
+    if (rangeStart < 0 || rangeLength <= 0 ||
+	    rangeStart + rangeLength > numBytes ||
+	    !TkMacOSXSetupDrawingContext(drawable, gc, 1, &drawingContext)) {
 	return;
     }
-
-#if 0
-    /*
-     * TODO: implement stippled text drawing
-     */
-
-    if ((gc->fill_style == FillStippled
-	    || gc->fill_style == FillOpaqueStippled)
-	    && gc->stipple != None) {
-	#error Stippling not implemented
+    string = [[NSString alloc] initWithBytesNoCopy:(void*)source
+		length:numBytes encoding:NSUTF8StringEncoding freeWhenDone:NO];
+    if (!string) {
+	return;
     }
-#endif
-
+    context = drawingContext.context;
+    fg = TkMacOSXCreateCGColor(gc, gc->foreground);
+    attributes = [fontPtr->nsAttributes mutableCopy];
+    [attributes setObject:(id)fg forKey:(id)kCTForegroundColorAttributeName];
+    CFRelease(fg);
+    nsFont = [attributes objectForKey:NSFontAttributeName];
+    [nsFont setInContext:[NSGraphicsContext graphicsContextWithGraphicsPort:
+	    context flipped:NO]];
+    CGContextSetTextMatrix(context, CGAffineTransformIdentity);
+    attributedString = [[NSAttributedString alloc] initWithString:string
+	    attributes:attributes];
+    typesetter = CTTypesetterCreateWithAttributedString(
+	    (CFAttributedStringRef)attributedString);
     x += macWin->xOff;
     y += macWin->yOff;
-    /* Turn the y coordinate upside-down for Quarz drawing. */
-    if (drawingContext.context) {
-	CGContextConcatCTM(drawingContext.context, CGAffineTransformMake(1.0,
-		0.0, 0.0, -1.0, 0.0, drawingContext.portBounds.bottom -
-		drawingContext.portBounds.top));
-	y = drawingContext.portBounds.bottom -
-		drawingContext.portBounds.top - y;
-    }
-    fy = IntToFixed(y);
-
-#if TK_MAC_COALESCE_LINE
-    UpdateLineBuffer(
-	    fontPtr, &drawingContext, source, numBytes, x, y, &lineOffset);
-
-    fx = IntToFixed(currentLeft);
-
-    uchars = (const Tcl_UniChar*) Tcl_DStringValue(&currentLine);
-    ulen = Tcl_DStringLength(&currentLine) / sizeof(uchars[0]);
-#else
-    lineOffset = 0;
-    fx = IntToFixed(x);
-
-    Tcl_DStringInit(&runString);
-    uchars = Tcl_UtfToUniCharDString(source, numBytes, &runString);
-    ulen = Tcl_DStringLength(&runString) / sizeof(uchars[0]);
-
-    LayoutSetString(fontPtr, &drawingContext, uchars, ulen);
-#endif
-
-    urstart = Tcl_NumUtfChars(source, rangeStart);
-    urlen = Tcl_NumUtfChars(source+rangeStart,rangeLength);
-
-    ChkErr(ATSUDrawText, fontPtr->atsuLayout, lineOffset+urstart, urlen, fx,
-	    fy);
-
-#if !TK_MAC_COALESCE_LINE
-    Tcl_DStringFree(&runString);
-#endif
-
-    TkMacOSXRestoreDrawingContext(&drawingContext);
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * MeasureStringWidth --
- *
- *	Low-level measuring of strings.
- *
- * Results:
- *	The width of the string in pixels.
- *
- * Side effects:
- *	None.
- *
- * Assumptions:
- *	fontPtr->atsuLayout is setup with the actual string data to measure.
- *
- *---------------------------------------------------------------------------
- */
-static int
-MeasureStringWidth(
-    const MacFont *fontPtr,	/* Contains font, ATSU layout and string data
-				 * to measure. */
-    int start, int end)		/* Start and end positions to measure in that
-				 * string. */
-{
-    /*
-     * This implementation of measuring via ATSUGetGlyphBounds() does not
-     * quite conform with the specification given for [font measure]:
-     *
-     *	   The return value is the total width in pixels of text, not
-     *	   including the extra pixels used by highly exagerrated characters
-     *	   such as cursive "f".
-     *
-     * Instead the result of ATSUGetGlyphBounds() *does* include these
-     * "extra pixels".
-     */
-
-    ATSTrapezoid bounds;
-    ItemCount numBounds;
-
-    if (end <= start) {
-	return 0;
-    }
-
-    bounds.upperRight.x = bounds.upperLeft.x = 0;
-    ChkErr(ATSUGetGlyphBounds, fontPtr->atsuLayout, 0, 0, start, end-start,
-	    kATSUseFractionalOrigins, 1, &bounds, &numBounds);
-#ifdef TK_MAC_DEBUG_FONTS
-    if (numBounds < 1 || numBounds > 1) {
-	TkMacOSXDbgMsg("ATSUGetGlyphBounds: %s output",
-		numBounds < 1 ? "No " : "More");
+    h = drawingContext.portBounds.size.height;
+    y = h - y;
+    t = CGAffineTransformMake(1.0, 0.0, 0.0, -1.0, 0.0, h);
+    if (angle != 0.0) {
+	t = CGAffineTransformTranslate(CGAffineTransformRotate(
+		CGAffineTransformTranslate(t, x, y), angle*M_PI/180.0), -x, -y);
     }
-#endif
-
-    return FixedToInt(bounds.upperRight.x - bounds.upperLeft.x);
-}
-
-#if TK_MAC_COALESCE_LINE
-/*
- *-------------------------------------------------------------------------
- *
- * UpdateLineBuffer --
- *
- *	See the general dicussion of TK_MAC_COALESCE_LINE on the header
- *	pages. This function maintains the data for this feature.
- *
- * Results:
- *
- *	The Tcl_UniChar string of the whole line as seen so far.
- *
- * Side effects:
- *	"*offset" is filled with the index of the first new character in
- *	"currentLine". The globals currentLine, currentY, currentLeft,
- *	currentRight and currentFontPtr are updated as necessary.
- *
- *	The currentLine string is set as the current text in
- *	fontPtr->atsuLayout (see LayoutSetString()).
- *
- *-------------------------------------------------------------------------
- */
-
-static const Tcl_UniChar *
-UpdateLineBuffer(
-    const MacFont *fontPtr,	/* The font to be used for the new piece of
-				 * text. */
-    const TkMacOSXDrawingContext *drawingContextPtr,
-				/* The Quarz drawing parameters. Needed for
-				 * measuring the new piece. */
-    const char *source,		/* A new piece of line to be added. */
-    int numBytes,		/* Length of the new piece. */
-    int x, int y,		/* Position of the new piece in the window. */
-    int *offset)		/* Filled with the offset of the new piece in
-				 * currentLine. */
-{
-    const Tcl_UniChar * uchars;
-    int ulen;
-
-    if (y != currentY
-	    || x < currentRight-1 || x > currentRight+2
-	    || currentFontPtr != fontPtr) {
-	Tcl_DStringFree(&currentLine);
-	Tcl_DStringInit(&currentLine);
-	currentY = y;
-	currentLeft = x;
-	currentFontPtr = fontPtr;
-	*offset = 0;
-    } else {
-	*offset = Tcl_DStringLength(&currentLine) / 2;
+    CGContextConcatCTM(context, t);
+    CGContextSetTextPosition(context, x, y);
+    start = Tcl_NumUtfChars(source, rangeStart);
+    len = Tcl_NumUtfChars(source, rangeStart + rangeLength);
+    if (start > 0) {
+	CGRect clipRect = CGRectInfinite, startBounds;
+	line = CTTypesetterCreateLine(typesetter, CFRangeMake(0, start));
+	startBounds = CTLineGetImageBounds(line, context);
+	CFRelease(line);
+	clipRect.origin.x = startBounds.origin.x + startBounds.size.width;
+	CGContextClipToRect(context, clipRect);
     }
-
-    Tcl_UtfToUniCharDString(source, numBytes, &currentLine);
-    uchars = (const Tcl_UniChar*) Tcl_DStringValue(&currentLine);
-    ulen = Tcl_DStringLength(&currentLine) / sizeof(*uchars);
-    LayoutSetString(fontPtr, drawingContextPtr, uchars, ulen);
-    currentRight = x + MeasureStringWidth(fontPtr, *offset, ulen);
-
-    return uchars;
-}
-#endif /* TK_MAC_COALESCE_LINE */
-
-/*
- *---------------------------------------------------------------------------
- *
- * FamilyNameForFamilyID --
- *
- *	Helper for InitFont() and TkMacOSXFontDescriptionForFMFontInfo().
- *	Retrieves font family names for a given font family ID.
- *
- * Results:
- *	Font family name or NULL.
- *
- * Side effects:
- *	None.
- *
- *---------------------------------------------------------------------------
- */
-
-static const char *
-FamilyNameForFamilyID(
-    FMFontFamily familyId)
-{
-    OSStatus err;
-    char name[256] = "";
-    const MacFontFamily * familyPtr = NULL;
-
-    err = ChkErr(GetFontFamilyName, familyId, name, sizeof(name));
-    if (err == noErr) {
-	/*
-	 * We find the canonical font name, so we can avoid unnecessary
-	 * memory management.
-	 */
-
-	familyPtr = FindFontFamily(name);
-#ifdef TK_MAC_DEBUG_FONTS
-	if (!familyPtr) {
-	    TkMacOSXDbgMsg("Font family '%s' not found", name);
-	}
-#endif
-    }
-    return familyPtr ? familyPtr->name : NULL;
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * InitFont --
- *
- *	Helper for TkpGetNativeFont() and TkpGetFontFromAttributes().
- *	Initializes the memory for a MacFont that wraps the
- *	platform-specific data.
- *
- *	The caller is responsible for initializing the fields of the TkFont
- *	that are used exclusively by the generic TkFont code, and for
- *	releasing those fields before calling TkpDeleteFont().
- *
- * Results:
- *	Fills the MacFont structure.
- *
- * Side effects:
- *	Memory allocated.
- *
- *---------------------------------------------------------------------------
- */
-
-static void
-InitFont(
-    FMFontFamily familyId,	/* The font family to initialize for. */
-    const char * familyName,	/* The font family name, if known. Otherwise
-				 * this can be NULL. */
-    int size,			/* Point size for the font. */
-    int qdStyle,		/* QuickDraw style bits. */
-    MacFont * fontPtr)		/* Filled with information constructed from the
-				 * above arguments. */
-{
-    FontInfo fi;
-    TkFontAttributes * faPtr;
-    TkFontMetrics * fmPtr;
-    int periodWidth, wWidth;
-
-    if (size == 0) {
-	size = GetDefFontSize();
-    }
-    ChkErr(FetchFontInfo, familyId, size, qdStyle, &fi);
-    if (!familyName) {
-	familyName = FamilyNameForFamilyID(familyId);
-    }
-
-    fontPtr->font.fid = (Font) fontPtr;
-
-    faPtr = &fontPtr->font.fa;
-    faPtr->family = familyName;
-    faPtr->size = size;
-    faPtr->weight = (qdStyle & bold) ? TK_FW_BOLD : TK_FW_NORMAL;
-    faPtr->slant = (qdStyle & italic) ? TK_FS_ITALIC : TK_FS_ROMAN;
-    faPtr->underline = ((qdStyle & underline) != 0);
-    faPtr->overstrike = 0;
-
-    fmPtr = &fontPtr->font.fm;
-
-    /*
-     * Note: Macs measure the line height as ascent + descent +
-     * leading. Leading as a separate entity does not exist in X11
-     * and Tk. We add it to the ascent at the moment, because adding
-     * it to the descent, as the Mac docs would indicate, would change
-     * the position of self-drawn underlines.
-     */
-
-    fmPtr->ascent = fi.ascent + fi.leading;
-    fmPtr->descent = fi.descent;
-    fmPtr->maxWidth = fi.widMax;
-
-    fontPtr->qdFont = familyId;
-    fontPtr->qdSize = size;
-    fontPtr->qdStyle = (short) qdStyle;
-
-    InitATSUObjects(familyId, size, qdStyle, &fontPtr->atsuFontId,
-	    &fontPtr->atsuLayout, &fontPtr->atsuStyle);
-
-    Tk_MeasureChars((Tk_Font)fontPtr, ".", 1, -1, 0, &periodWidth);
-    Tk_MeasureChars((Tk_Font)fontPtr, "W", 1, -1, 0, &wWidth);
-    fmPtr->fixed = periodWidth == wWidth;
-
-    SetFontFeatures(fontPtr->atsuFontId, fmPtr->fixed, size,
-	    fontPtr->atsuStyle);
-
-    AdjustFontHeight(fontPtr);
+    line = CTTypesetterCreateLine(typesetter, CFRangeMake(0, len));
+    CTLineDraw(line, context);
+    CFRelease(line);
+    CFRelease(typesetter);
+    [attributedString release];
+    [string release];
+    [attributes release];
+    TkMacOSXRestoreDrawingContext(&drawingContext);
 }
-
-/*
- *---------------------------------------------------------------------------
- *
- * InitATSUObjects --
- *
- *	Helper for InitFont(). Initializes the ATSU data handles for a
- *	MacFont.
- *
- * Results:
- *	Sets up all we know and can do at this point in time in fontIdPtr,
- *	layoutPtr and stylePtr.
- *
- * Side effects:
- *	Allocates data structures inside of ATSU.
- *
- *---------------------------------------------------------------------------
- */
-
-static void
-InitATSUObjects(
-    FMFontFamily familyId,	/* The font family to use. */
-    short ptSize, short qdStyles,
-				/* The additional font parameters. */
-    ATSUFontID *fontIdPtr,	/* Filled with the font id. */
-    ATSUTextLayout *layoutPtr,	/* Filled with the ATSU layout handle. */
-    ATSUStyle *stylePtr)	/* Filled with the ATSU style handle,
-				 * configured with all parameters. */
-{
-    FMFontStyle stylesDone, stylesLeft;
-
-    /*
-     * Defaults in case of error.
-     */
-
-    *fontIdPtr = GetAppFont();
-    *stylePtr = 0;
-    *layoutPtr = 0;
-
-    /*
-     * Generate a font id from family id and QD style bits.
-     */
-
-    ChkErr(FMGetFontFromFontFamilyInstance, familyId, qdStyles, fontIdPtr,
-	    &stylesDone);
-
-    /*
-     * We see what style bits are left and tell ATSU to synthesize what's
-     * left like QD does it.
-     */
-
-    stylesLeft = qdStyles & ~(unsigned)stylesDone;
-
-    /*
-     * Create the style and set its attributes.
-     */
 
-    ChkErr(ATSUCreateStyle, stylePtr);
-    InitATSUStyle(*fontIdPtr, ptSize, stylesLeft, *stylePtr);
-
-    /*
-     * Create the layout. Note: We can't set the layout attributes here,
-     * because the text and the style must be set first.
-     */
-
-    ChkErr(ATSUCreateTextLayout, layoutPtr);
-    /*InitATSULayout(*layoutPtr);*/
-}
+#pragma mark -
+#pragma mark Accessors:
 
 /*
  *---------------------------------------------------------------------------
  *
- * InitATSUStyle --
+ * TkMacOSXNSFontForFont --
  *
- *	Helper for InitATSUObjects(). Initializes the ATSU style for a
- *	MacFont.
+ *	Return an NSFont for the given Tk_Font.
  *
  * Results:
- *	Sets up all parameters needed for an ATSU style.
+ *	NSFont*.
  *
  * Side effects:
- *	Allocates data structures for the style inside of ATSU.
- *
- *---------------------------------------------------------------------------
- */
-
-static void
-InitATSUStyle(
-    ATSUFontID fontId,		/* The font id to use. */
-    short ptSize, short qdStyles,
-				/* Additional font parameters. */
-    ATSUStyle style)		/* The style handle to configure. */
-{
-    /*
-     * Attributes for the style.
-     */
-
-    Fixed fsize = IntToFixed(ptSize);
-    Boolean
-	isBold = (qdStyles&bold) != 0,
-	isUnderline = (qdStyles&underline) != 0,
-	isItalic = (qdStyles&italic) != 0;
-
-    ATSStyleRenderingOptions options =
-	antialiasedTextEnabled == -1 ? kATSStyleNoOptions :
-	antialiasedTextEnabled == 0  ? kATSStyleNoAntiAliasing :
-				       kATSStyleApplyAntiAliasing;
-
-    static const ATSUAttributeTag styleTags[] = {
-	kATSUFontTag, kATSUSizeTag,
-	kATSUQDBoldfaceTag, kATSUQDItalicTag, kATSUQDUnderlineTag,
-	kATSUStyleRenderingOptionsTag,
-    };
-    static const ByteCount styleSizes[] = {
-	sizeof(ATSUFontID), sizeof(Fixed),
-	sizeof(Boolean), sizeof(Boolean), sizeof(Boolean),
-	sizeof(ATSStyleRenderingOptions),
-    };
-    const ATSUAttributeValuePtr styleValues[] = {
-	&fontId, &fsize,
-	&isBold, &isItalic, &isUnderline,
-	&options,
-    };
-
-    ChkErr(ATSUSetAttributes, style, sizeof(styleTags)/sizeof(styleTags[0]),
-	    styleTags, styleSizes, styleValues);
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * SetFontFeatures --
- *
- *	Helper for InitFont(). Request specific font features of the ATSU
- *	style object for a MacFont.
- *
- * Results:
  *	None.
  *
- * Side effects:
- *	Specific font features are enabled on the ATSU style object.
- *
- *---------------------------------------------------------------------------
- */
-
-static void
-SetFontFeatures(
-    ATSUFontID fontId,		/* The font id to use. */
-    int fixed,			/* Is this a fixed font? */
-    short size,			/* Size of the font */
-    ATSUStyle style)		/* The style handle to configure. */
-{
-    /*
-     * Don't use the standard latin ligatures, if this is determined to be a
-     * fixed-width font.
-     */
-
-    static const ATSUFontFeatureType fixed_featureTypes[] = {
-	kLigaturesType, kLigaturesType
-    };
-    static const ATSUFontFeatureSelector fixed_featureSelectors[] = {
-	kCommonLigaturesOffSelector, kRareLigaturesOffSelector
-    };
-
-    if (fixed) {
-	ChkErr(ATSUSetFontFeatures, style, sizeof(fixed_featureTypes) /
-		sizeof(fixed_featureTypes[0]), fixed_featureTypes,
-		fixed_featureSelectors);
-	if (size <= 10) {
-	    /*
-	     * Disable antialiasing of fixed-width fonts with sizes <= 10
-	     */
-
-	    const ATSStyleRenderingOptions options = kATSStyleNoAntiAliasing;
-	    const ATSUAttributeTag styleTag = kATSUStyleRenderingOptionsTag;
-	    const ByteCount styleSize = sizeof(ATSStyleRenderingOptions);
-	    const ConstATSUAttributeValuePtr styleValue = &options;
-
-	    ChkErr(ATSUSetAttributes, style, 1, &styleTag, &styleSize,
-		    (ATSUAttributeValuePtr*) &styleValue);
-	}
-    }
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * AdjustFontHeight --
- *
- *	Helper for InitFont(). Check font height against some real world
- *	examples.
- *
- * Results:
- *	None.
- *
- * Side effects:
- *	The metrics in fontPtr->font.fm are adjusted so that typical combined
- *	characters fit into ascent+descent.
- *
- *---------------------------------------------------------------------------
- */
-
-static void
-AdjustFontHeight(
-    MacFont * fontPtr)
-{
-    /*
-     * The standard values for ascent, descent and leading as determined in
-     * InitFont do not take composition into account, they are designed for
-     * plain ASCII characters. This code measures the actual size of some
-     * typical composed characters from the Latin-1 range and corrects these
-     * factors, especially the ascent.
-     *
-     * A font requested with a pixel size may thus have a larger line height
-     * than requested.
-     *
-     * An alternative would be to instruct ATSU to shrink oversized combined
-     * characters. I think I have seen that feature somewhere, but I can't
-     * find it now [BR].
-     */
-
-    static const UniChar chars[]
-	    /* Auml,   Aacute, Acirc,  Atilde, Ccedilla */
-	    = {0x00C4, 0x00C1, 0x00C2, 0x00C3, 0x00C7};
-    static const int charslen = sizeof(chars) / sizeof(chars[0]);
-    Rect size;
-    OSStatus err;
-
-    LayoutSetString(fontPtr, NULL, chars, charslen);
-
-    size.top = size.bottom = 0;
-    err = ChkErr(ATSUMeasureTextImage, fontPtr->atsuLayout, 0, charslen, 0, 0,
-	    &size);
-
-    if (err == noErr) {
-	TkFontMetrics * fmPtr = &fontPtr->font.fm;
-	int ascent = -size.top;
-	int descent = size.bottom;
-
-	if (ascent > fmPtr->ascent) {
-	    fmPtr->ascent = ascent;
-	}
-	if (descent > fmPtr->descent) {
-	    fmPtr->descent = descent;
-	}
-    }
-}
-
-/*
- *---------------------------------------------------------------------------
- *
- * InitATSULayout --
- *
- *	Helper for LayoutSetString(). Initializes the ATSU layout
- *	object for a MacFont and a specific string.
- *
- * Results:
- *	Sets up all parameters needed for an ATSU layout object.
- *
- * Side effects:
- *	Allocates data structures for the layout object inside of ATSU.
- *
- * Assumptions:
- *	The actual string data and style information is already set by
- *	ATSUSetTextPointerLocation() and ATSUSetRunStyle() (see
- *	LayoutSetString()).
- *
  *---------------------------------------------------------------------------
  */
 
-static void
-InitATSULayout(
-    const TkMacOSXDrawingContext  *drawingContextPtr,
-				/* Specifies the CGContext to use. */
-    ATSUTextLayout layout,	/* The layout object to configure. */
-    int fixed)			/* Is this a fixed font? */
+MODULE_SCOPE NSFont*
+TkMacOSXNSFontForFont(
+    Tk_Font tkfont)
 {
-    /*
-     * Attributes for the layout.
-     */
-
-    ATSLineLayoutOptions layoutOptions = 0
-#if TK_MAC_COALESCE_LINE
-	    /*
-	     * Options to use unconditionally  when we try to do coalescing.
-	     */
-	    | kATSLineDisableAllLayoutOperations
-	    | kATSLineFractDisable
-	    | kATSLineUseDeviceMetrics
-#endif
-	    ;
-    CGContextRef context = drawingContextPtr ?
-	drawingContextPtr->context : NULL;
-
-    static const ATSUAttributeTag layoutTags[] = {
-	kATSUCGContextTag,
-	kATSULineLayoutOptionsTag,
-    };
-    static const ByteCount layoutSizes[] = {
-	sizeof(CGContextRef),
-	sizeof(ATSLineLayoutOptions),
-    };
-    const ATSUAttributeValuePtr layoutValues[] = {
-	&context,
-	&layoutOptions,
-    };
-
-    /*
-     * Ensure W(abcdefg) == W(a)*7 for fixed fonts (Latin scripts only).
-     */
-
-    if (fixed) {
-	layoutOptions |= kATSLineFractDisable | kATSLineUseDeviceMetrics;
-    }
-
-    ChkErr(ATSUSetLayoutControls, layout, sizeof(layoutTags) /
-	    sizeof(layoutTags[0]), layoutTags, layoutSizes, layoutValues);
-    ChkErr(ATSUSetTransientFontMatching, layout, true);
+    return tkfont ? ((MacFont *)tkfont)->nsFont : nil;
 }
 
 /*
  *---------------------------------------------------------------------------
  *
- * LayoutSetString --
+ * TkMacOSXNSFontAttributesForFont --
  *
- *	Setup the MacFont for a specific string.
+ *	Return an NSDictionary of font attributes for the given Tk_Font.
  *
  * Results:
- *	Sets up all parameters so that ATSU can work with the objects in
- *	MacFont.
+ *	NSFont*.
  *
  * Side effects:
- *	Sets parameters on the layout object fontPtr->atsuLayout.
- *
- *---------------------------------------------------------------------------
- */
-
-void
-LayoutSetString(
-    const MacFont *fontPtr,	/* The fontPtr to configure. */
-    const TkMacOSXDrawingContext *drawingContextPtr,
-				/* For the CGContext to be used.*/
-    const UniChar *uchars, int ulen)
-				/* The UniChar string to set into
-				 * fontPtr->atsuLayout. */
-{
-    ChkErr(ATSUSetTextPointerLocation, fontPtr->atsuLayout, uchars,
-	    kATSUFromTextBeginning, ulen, ulen);
-
-    /*
-     * Styles can only be set after the text is set.
-     */
-
-    ChkErr(ATSUSetRunStyle, fontPtr->atsuLayout, fontPtr->atsuStyle,
-	    kATSUFromTextBeginning, kATSUToTextEnd);
-
-    /*
-     * Layout attributes can only be set after the styles are set.
-     */
-
-    InitATSULayout(drawingContextPtr, fontPtr->atsuLayout,
-	    fontPtr->font.fm.fixed);
-}
-
-/*
- *-------------------------------------------------------------------------
- *
- * ReleaseFont --
- *
- *	Called to release the Macintosh-specific contents of a TkFont. The
- *	caller is responsible for freeing the memory used by the font
- *	itself.
- *
- * Results:
  *	None.
  *
- * Side effects:
- *	Memory is freed.
- *
  *---------------------------------------------------------------------------
  */
 
-static void
-ReleaseFont(
-    MacFont *fontPtr)		/* The font to delete. */
+MODULE_SCOPE NSDictionary*
+TkMacOSXNSFontAttributesForFont(
+    Tk_Font tkfont)
 {
-    ATSUDisposeTextLayout(fontPtr->atsuLayout);
-    ATSUDisposeStyle(fontPtr->atsuStyle);
-}
-
-/*
- *-------------------------------------------------------------------------
- *
- * FindFontFamilyOrAlias, FindFontFamilyOrAliasOrFallback --
- *
- *	Determine if any physical screen font exists on the system with the
- *	given family name. If the family exists, then it should be possible
- *	to construct some physical screen font with that family name.
- *
- *	FindFontFamilyOrAlias also considers font aliases as determined by
- *	TkFontGetAliasList().
- *
- *	FindFontFamilyOrAliasOrFallback also considers font aliases as
- *	determined by TkFontGetFallbacks().
- *
- *	The overall algorithm to get the closest font to the one requested is
- *	this:
- *
- *		try fontname
- *		try all aliases for fontname
- *		foreach fallback for fontname
- *			try the fallback
- *			try all aliases for the fallback
- *
- * Results:
- *
- *	The return value is NULL if the specified font family does not exist,
- *	a valid MacFontFamily* otherwise.
- *
- * Side effects:
- *
- *	None.
- *
- *-------------------------------------------------------------------------
- */
-
-static const MacFontFamily *
-FindFontFamilyOrAlias(
-    const char *name)		/* Name or alias name of the font to find. */
-{
-    const MacFontFamily * familyPtr;
-    char ** aliases;
-    int i;
-
-    familyPtr = FindFontFamily(name);
-    if (familyPtr != NULL) {
-	return familyPtr;
-    }
-
-    aliases = TkFontGetAliasList(name);
-    if (aliases != NULL) {
-	for (i = 0; aliases[i] != NULL; i++) {
-	    familyPtr = FindFontFamily(aliases[i]);
-	    if (familyPtr != NULL) {
-		return familyPtr;
-	    }
-	}
-    }
-    return NULL;
-}
-
-static const MacFontFamily *
-FindFontFamilyOrAliasOrFallback(
-    const char *name)		/* Name or alias name of the font to find. */
-{
-    const MacFontFamily * familyPtr;
-    const char * fallback;
-    char *** fallbacks;
-    int i, j;
-
-    familyPtr = FindFontFamilyOrAlias(name);
-    if (familyPtr != NULL) {
-	return familyPtr;
-    }
-    fallbacks = TkFontGetFallbacks();
-    for (i = 0; fallbacks[i] != NULL; i++) {
-	for (j = 0; (fallback = fallbacks[i][j]) != NULL; j++) {
-	    if (strcasecmp(name, fallback) == 0) {
-		for (j = 0; (fallback = fallbacks[i][j]) != NULL; j++) {
-		    familyPtr = FindFontFamilyOrAlias(fallback);
-		    if (familyPtr != NULL) {
-			return familyPtr;
-		    }
-		}
-	    }
-	    break; /* benny: This "break" is a carry-over from
-		    * tkMacOSXFont.c, but what is actually its purpose
-		    * ???? */
-	}
-    }
-
-
-    /*
-     * FIXME: We would have liked to recover by re-enumerating fonts. But
-     * that doesn't work, because Carbon seems to cache the inital list of
-     * fonts. Fonts newly installed don't show up with
-     * FMCreateFontFamilyIterator()/FMGetNextFontFamily() without a restart
-     * of the app. Similar problem with fonts removed.
-     */
-
-#ifdef TK_MAC_DEBUG_FONTS
-    TkMacOSXDbgMsg("Font family '%s' not found", name);
-#endif
-
-    return NULL;
-}
-
-/*
- *-------------------------------------------------------------------------
- *
- * InitFontFamilies --
- *
- *	Helper to TkpFontPkgInit. Use the Font Manager to fill in the
- *	familyList global array.
- *
- * Results:
- *
- *	None.
- *
- * Side effects:
- *
- *	Allocates memory.
- *
- *-------------------------------------------------------------------------
- */
-
-static void
-InitFontFamilies(void)
-{
-    FMFontFamily fontFamily;
-    Str255 fontName;
-    SInt16 fontSize;
-    Style  fontStyle;
-
-    /*
-     * Has this been called before?
-     */
-
-    if (familyListNextFree > 0) {
-	return;
-    }
-
-    ChkErr(ATSFontFamilyApplyFunction, FontFamilyEnumCallback,NULL);
-
-    if (GetThemeFontAndFamily(kThemeSystemFont, &fontFamily, fontName,
-	    &fontSize, &fontStyle) == noErr) {
-	AddFontFamily(SYSTEMFONT_NAME, fontFamily);
-    }
-    if (GetThemeFontAndFamily(kThemeApplicationFont, &fontFamily, fontName,
-	    &fontSize, &fontStyle) == noErr) {
-	AddFontFamily(APPLFONT_NAME, fontFamily);
-    }
-    if (GetThemeFontAndFamily(kThemeMenuItemFont, &fontFamily, fontName,
-	    &fontSize, &fontStyle) == noErr) {
-	AddFontFamily(MENUITEMFONT_NAME, fontFamily);
-    }
-
-    SortFontFamilies();
-}
-
-/*
- *-------------------------------------------------------------------------
- *
- * FontFamilyEnumCallback --
- *
- *	Callback for ATSFontFamilyApplyFunction().
- *
- * Results:
- *
- *	noErr.
- *
- * Side effects:
- *
- *	None.
- *
- *-------------------------------------------------------------------------
- */
-
-static OSStatus
-FontFamilyEnumCallback(
-    ATSFontFamilyRef family,
-    void *refCon)
-{
-    OSStatus err;
-    char name[260] = "";
-
-    (void) refCon;
-
-    err = ChkErr(GetFontFamilyName, family, name, sizeof(name));
-    if (err == noErr) {
-	AddFontFamily(name, family);
-    }
-
-    return noErr;
-}
-
-/*
- *-------------------------------------------------------------------------
- *
- * GetFontFamilyName --
- *
- *	Use the Font Manager to get the name of a given FMFontfamily. This
- *	currently gets the standard, non-localized QuickDraw name. Other
- *	names would be possible, see docs for ATSUFindFontName for a
- *	selection. The MacOSX font selector seems to use the localized
- *	family name given by ATSUFindFontName(kFontFamilyName), but that API
- *	doesn't give us a name at all for some fonts.
- *
- * Results:
- *	An OS error code, noErr on success. name is filled with the
- *	resulting name.
- *
- * Side effects:
- *	None.
- *
- *-------------------------------------------------------------------------
- */
-
-static OSStatus
-GetFontFamilyName(
-    FMFontFamily fontFamily,	/* The font family for which to find the
-				 * name. */
-    char * name, int numBytes)	/* Filled with the result. */
-{
-    OSStatus err;
-    Str255 nativeName;
-    CFStringRef cfString;
-    TextEncoding encoding;
-    ScriptCode nameencoding;
-
-    nativeName[0] = 0;
-    name[0] = 0;
-    err = ChkErr(FMGetFontFamilyName, fontFamily, nativeName);
-    if (err != noErr) {
-	return err;
-    }
-
-    /*
-     * QuickDraw font names are encoded with the script that the font uses.
-     * So we determine that encoding and than we reencode the name.  We
-     * pre-set the encoding with the default value, so we do not need to
-     * check result codes here.
-     */
-
-    encoding = kTextEncodingMacRoman;
-    ChkErr(FMGetFontFamilyTextEncoding, fontFamily, &encoding);
-    nameencoding = encoding;
-    ChkErr(RevertTextEncodingToScriptInfo, encoding, &nameencoding, NULL,
-	    NULL);
-
-    /*
-     * Note: We could use Tcl facilities to do the re-encoding here. We'd
-     * have to maintain tables to map OS encoding codes to Tcl encoding names
-     * like tkMacOSXFont.c did. Using native re-encoding directly instead is
-     * a lot easier and future-proof than that. There is one snag, though: I
-     * have seen CFStringGetCString() crash with invalid encoding ids. But
-     * than if that happens it would be a bug in
-     * FMGetFontFamilyTextEncoding() or RevertTextEncodingToScriptInfo().
-     * Another problem is that users have seen CFStringCreate return null
-     * (Bug #2548661).  This is due to font names with a bad encoding.
-     */
-
-    cfString = CFStringCreateWithPascalStringNoCopy(
-	    NULL, nativeName, nameencoding, kCFAllocatorNull);
-    if (cfString == NULL) {
-        TkMacOSXDbgMsg("CFStringCreate: "
-                "'%.*s' could not be decoded with encoding %d",
-                nativeName[0], nativeName+1, (int) nameencoding);
-        return kTextMalformedInputErr;
-    }
-
-    CFStringGetCString(cfString, name, numBytes, kCFStringEncodingUTF8);
-    CFRelease(cfString);
-
-    return noErr;
-}
-
-/*
- *-------------------------------------------------------------------------
- *
- * FindFontFamily --
- *
- *	Find the font family with the given name in the global familyList.
- *	Uses bsearch() for convenient access. Comparision is done
- *	non-case-sensitively with CompareFontFamilies() which see.
- *
- * Results:
- *
- *	MacFontFamily: A pair of family id and the actual name registered for
- *	the font.
- *
- * Side effects:
- *
- *	None.
- *
- * Assumption:
- *
- *	Requires the familyList array to be sorted.
- *
- *-------------------------------------------------------------------------
- */
-
-static const MacFontFamily *
-FindFontFamily(
-    const char *name)		/* The family name. Note: Names are compared
-				 * non-case-sensitive. */
-{
-    const MacFontFamily key = {name,-1};
-
-    if(familyListMaxValid <= 0) {
-	return NULL;
-    }
-
-    return bsearch(&key, familyList, familyListMaxValid, sizeof(*familyList),
-	    CompareFontFamilies);
-}
-
-/*
- *-------------------------------------------------------------------------
- *
- * EnumFontFamilies --
- *
- *	Create a Tcl list with the registered names in the global familyList.
- *
- * Results:
- *	A Tcl list of names.
- *
- * Side effects:
- *	None.
- *
- *-------------------------------------------------------------------------
- */
-
-static Tcl_Obj *
-EnumFontFamilies(void)
-{
-    int i;
-    Tcl_Obj * tclList;
-
-    tclList = Tcl_NewListObj(0, NULL);
-    for (i=0; i<familyListMaxValid; ++i) {
-	Tcl_ListObjAppendElement(NULL, tclList,
-		Tcl_NewStringObj(familyList[i].name, -1));
-    }
-
-    return tclList;
-}
-
-/*
- *-------------------------------------------------------------------------
- *
- * AddFontFamily --
- *
- *	Register a font family in familyList. Until SortFontFamilies() is
- *	called, this is not actually available for FindFontFamily().
- *
- * Results:
- *
- *	MacFontFamily: The new pair of family id and the actual name
- *	registered for the font.
- *
- * Side effects:
- *
- *	New entry in familyList and familyListNextFree updated.
- *
- *-------------------------------------------------------------------------
- */
-
-static const MacFontFamily *
-AddFontFamily(
-    const char *name,		/* Font family name to register. */
-    FMFontFamily familyId)	/* Font family id to register. */
-{
-    MacFontFamily * familyPtr;
-
-    if (familyListNextFree >= familyListSize) {
-	familyListSize += 100;
-	familyList = (MacFontFamily *) ckrealloc((void*) familyList,
-		familyListSize * sizeof(*familyList));
-    }
-
-    familyPtr = familyList + familyListNextFree;
-    ++familyListNextFree;
-
-    familyPtr->name = AddString(name);
-    familyPtr->familyId = familyId;
-
-    return familyPtr;
-}
-
-/*
- *-------------------------------------------------------------------------
- *
- * SortFontFamilies --
- *
- *	Sort the entries in familyList. Only after calling
- *	SortFontFamilies(), the new families registered with AddFontFamily()
- *	are actually available for FindFontFamily(), because FindFontFamily()
- *	requires the array to be sorted.
- *
- * Results:
- *
- *	None.
- *
- * Side effects:
- *
- *	familyList is sorted and familyListMaxValid is updated.
- *
- *-------------------------------------------------------------------------
- */
-
-static void
-SortFontFamilies(void)
-{
-    if (familyListNextFree > 0) {
-	qsort(familyList, familyListNextFree, sizeof(*familyList),
-		CompareFontFamilies);
-    }
-    familyListMaxValid = familyListNextFree;
-}
-
-/*
- *-------------------------------------------------------------------------
- *
- * CompareFontFamilies --
- *
- *	Comparison function used by SortFontFamilies() and FindFontFamily().
- *
- * Results:
- *	Result as required to generate a stable sort order for bsearch() and
- *	qsort(). The ordering is not case-sensitive as far as
- *	Tcl_UtfNcasecmp() (which see) can provide that.
- *
- *	Note: It would be faster to compare first the length and the actual
- *	strings only as a tie-breaker, but than the ordering wouldn't look so
- *	pretty in [font families] ;-).
- *
- * Side effects:
- *	None.
- *
- *-------------------------------------------------------------------------
- */
-
-static int
-CompareFontFamilies(
-    const void * vp1,
-    const void * vp2)
-{
-    const char * name1;
-    const char * name2;
-    int len1, len2, diff;
-
-    name1 = ((const MacFontFamily *) vp1)->name;
-    name2 = ((const MacFontFamily *) vp2)->name;
-
-    len1 = Tcl_NumUtfChars(name1, -1);
-    len2 = Tcl_NumUtfChars(name2, -1);
-
-    diff = Tcl_UtfNcasecmp(name1, name2, len1<len2 ? len1 : len2);
-
-    return diff == 0 ? len1-len2 : diff;
-}
-
-/*
- *-------------------------------------------------------------------------
- *
- * AddString --
- *
- *	Helper for AddFontFamily(). Allocates a string in the one-shot
- *	allocator.
- *
- * Results:
- *	A duplicated string in the one-shot allocator.
- *
- * Side effects:
- *	May allocate a new memory block.
- *
- *-------------------------------------------------------------------------
- */
-
-static const char *
-AddString(
-    const char *in)		/* String to add, zero-terminated. */
-{
-    int len;
-    char *result;
-
-    len = strlen(in) +1;
-
-    if (stringMemory == NULL
-	    || (stringMemory->nextFree+len) > STRING_BLOCK_MAX) {
-	StringBlock * newblock = (StringBlock *) ckalloc(sizeof(StringBlock));
-
-	newblock->next = stringMemory;
-	newblock->nextFree = 0;
-	stringMemory = newblock;
-    }
-
-    result = stringMemory->strings + stringMemory->nextFree;
-    stringMemory->nextFree += len;
-
-    memcpy(result, in, len);
-
-    return result;
+    return tkfont ? ((MacFont *)tkfont)->nsAttributes : nil;
 }
 
 /*
@@ -2415,54 +1162,12 @@ TkMacOSXIsCharacterMissing(
     Tk_Font tkfont,		/* The font we are looking in. */
     unsigned int searchChar)	/* The character we are looking for. */
 {
-    /* Background: This function is private and only used in
-     * tkMacOSXMenu.c:FindMarkCharacter().
-     *
-     * We could use ATSUMatchFont() to implement. We'd have to change the
-     * definition of the encoding of the parameter searchChar from MacRoman
-     * to UniChar for that.
-     *
-     * The system uses font fallback for controls, so we don't really need
-     * this. */
-
     return 0;
 }
 
 /*
  *----------------------------------------------------------------------
  *
- * TkMacOSXInitControlFontStyle --
- *
- *	This procedure sets up the appropriate ControlFontStyleRec
- *	for a Mac control.
- *
- * Results:
- *	None.
- *
- * Side effects:
- *	None.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TkMacOSXInitControlFontStyle(
-    Tk_Font tkfont,		/* Tk font object to use for the control. */
-    ControlFontStylePtr fsPtr)	/* The style object to configure. */
-{
-    const MacFont * fontPtr = (MacFont *) tkfont;
-
-    fsPtr->flags = kControlUseFontMask | kControlUseSizeMask |
-	    kControlUseFaceMask | kControlUseJustMask;
-    fsPtr->font = fontPtr->qdFont;
-    fsPtr->size = fontPtr->qdSize;
-    fsPtr->style = fontPtr->qdStyle;
-    fsPtr->just = teCenter;
-}
-
-/*
- *----------------------------------------------------------------------
- *
  * TkMacOSXUseAntialiasedText --
  *
  *	Enables or disables application-wide use of antialiased text (where