merge XFree86 4.3.0.1 to -CURRENT

1 files changed, 533 insertions, 86 deletions

diff --git a/grid.c b/grid.c
index 7d41f3d..f2125c1 100644
--- a/grid.c
+++ b/grid.c
@@ -26,6 +26,7 @@ in this Software without prior written authorization from The Open Group.
  * *
  * Author:  Jim Fulton, MIT X Consortium
  */
+/* $XFree86: xc/programs/xfd/grid.c,v 1.9 2002/07/06 00:46:42 keithp Exp $ */
 
 
 #include <X11/IntrinsicP.h>
@@ -47,10 +48,21 @@ in this Software without prior written authorization from The Open Group.
 #define Bell(w,n) XBell(XtDisplay(w), 0)
 #endif
 
-
-static void ClassInitialize(), Initialize(), Realize(), Redisplay(), Notify();
-static void Destroy(), Resize(), paint_grid();
-static Boolean SetValues();
+static GC get_gc(FontGridWidget fgw, Pixel fore);
+static void ClassInitialize(void);
+static void Initialize(Widget request, Widget new, ArgList args, 
+		       Cardinal *num_args);
+static void Realize(Widget gw, Mask *valueMask, 
+		    XSetWindowAttributes *attributes);
+static void Destroy(Widget gw);
+static void Resize(Widget gw);
+static void Redisplay(Widget gw, XEvent *event, Region region);
+static void paint_grid(FontGridWidget fgw, int col, int row, 
+		       int ncols, int nrows);
+static Boolean SetValues(Widget current, Widget request, Widget new, 
+			 ArgList args, Cardinal *num_args);
+static void Notify(Widget gw, XEvent *event, String *params, 
+		   Cardinal *nparams);
 
 #define Offset(field) XtOffsetOf(FontGridRec, fontgrid.field)
 
@@ -65,10 +77,12 @@ static XtResource resources[] = {
 	Offset(cell_width), XtRImmediate, (XtPointer) 0 },
     { XtNcellHeight, XtCCellHeight, XtRInt, sizeof(int),
 	Offset(cell_height), XtRImmediate, (XtPointer) 0 },
-    { XtNstartChar, XtCStartChar, XtRDimension, sizeof(Dimension),
-	Offset(start_char), XtRImmediate, (XtPointer) 0xffff },
+    { XtNstartChar, XtCStartChar, XtRLong, sizeof(long),
+	Offset(start_char), XtRImmediate, (XtPointer) 0xffffffff },
+#ifndef XRENDER
     { XtNforeground, XtCForeground, XtRPixel, sizeof(Pixel),
 	Offset(foreground_pixel), XtRString, (XtPointer) XtDefaultForeground },
+#endif
     { XtNcenterChars, XtCCenterChars, XtRBoolean, sizeof(Boolean),
 	Offset(center_chars), XtRImmediate, (XtPointer) FALSE },
     { XtNboxChars, XtCBoxChars, XtRBoolean, sizeof(Boolean),
@@ -81,6 +95,12 @@ static XtResource resources[] = {
 	Offset(internal_pad), XtRImmediate, (XtPointer) 4 },
     { XtNgridWidth, XtCGridWidth, XtRInt, sizeof(int),
 	Offset(grid_width), XtRImmediate, (XtPointer) 1 },
+#ifdef XRENDER
+    {XtNforeground, XtCForeground, XtRXftColor, sizeof(XftColor),
+        Offset(fg_color), XtRString, XtDefaultForeground},
+    {XtNface, XtCFace, XtRXftFont, sizeof (XftFont *),
+	Offset (text_face), XtRString, 0},
+#endif
 };
 
 #undef Offset
@@ -135,34 +155,193 @@ FontGridClassRec fontgridClassRec = {
 WidgetClass fontgridWidgetClass = (WidgetClass) &fontgridClassRec;
 
 
+long
+GridFirstChar (Widget w)
+{
+    FontGridWidget	fgw = (FontGridWidget) w;
+    XFontStruct		*fs = fgw->fontgrid.text_font;
+#ifdef XRENDER
+    XftFont		*xft = fgw->fontgrid.text_face;
+    if (xft)
+    {
+	FcChar32    map[FC_CHARSET_MAP_SIZE];
+	FcChar32    next;
+	FcChar32    first;
+	int	    i;
+
+	first = FcCharSetFirstPage (xft->charset, map, &next);
+	for (i = 0; i < FC_CHARSET_MAP_SIZE; i++)
+	    if (map[i])
+	    {
+		FcChar32    bits = map[i];
+		first += i * 32;
+		while (!(bits & 0x1))
+		{
+		    bits >>= 1;
+		    first++;
+		}
+		break;
+	    }
+	return first;
+    }
+    else
+#endif
+    if (fs)
+    {
+	return (fs->min_byte1 << 8) | (fs->min_char_or_byte2);
+    }
+    else
+	return 0;
+}
+
+long
+GridLastChar (Widget w)
+{
+    FontGridWidget	fgw = (FontGridWidget) w;
+    XFontStruct		*fs = fgw->fontgrid.text_font;
+#ifdef XRENDER
+    XftFont		*xft = fgw->fontgrid.text_face;
+    if (xft)
+    {
+	FcChar32    this, last, next;
+	FcChar32    map[FC_CHARSET_MAP_SIZE];
+	int	    i;
+	last = FcCharSetFirstPage (xft->charset, map, &next);
+	while ((this = FcCharSetNextPage (xft->charset, map, &next)) != FC_CHARSET_DONE)
+	    last = this;
+	last &= ~0xff;
+	for (i = FC_CHARSET_MAP_SIZE - 1; i >= 0; i--)
+	    if (map[i])
+	    {
+		FcChar32    bits = map[i];
+		last += i * 32 + 31;
+		while (!(bits & 0x80000000))
+		{
+		    last--;
+		    bits <<= 1;
+		}
+		break;
+	    }
+	return (long) last;
+    }
+    else
+#endif
+    if (fs)
+    {
+	return (fs->max_byte1 << 8) | (fs->max_char_or_byte2);
+    }
+    else
+	return 0;
+}
+
+/*
+ * CI_GET_CHAR_INFO_1D - return the charinfo struct for the indicated 8bit
+ * character.  If the character is in the column and exists, then return the
+ * appropriate metrics (note that fonts with common per-character metrics will
+ * return min_bounds).
+ */
+
+#define CI_NONEXISTCHAR(cs) (((cs)->width == 0) && \
+			     (((cs)->rbearing|(cs)->lbearing| \
+			       (cs)->ascent|(cs)->descent) == 0))
+
+#define CI_GET_CHAR_INFO_1D(fs,col,cs) \
+{ \
+    cs = 0; \
+    if (col >= fs->min_char_or_byte2 && col <= fs->max_char_or_byte2) { \
+	if (fs->per_char == NULL) { \
+	    cs = &fs->min_bounds; \
+	} else { \
+	    cs = &fs->per_char[(col - fs->min_char_or_byte2)]; \
+	} \
+	if (CI_NONEXISTCHAR(cs)) \
+	    cs = 0; \
+    } \
+}
+
+/*
+ * CI_GET_CHAR_INFO_2D - return the charinfo struct for the indicated row and 
+ * column.  This is used for fonts that have more than row zero.
+ */
+#define CI_GET_CHAR_INFO_2D(fs,row,col,cs) \
+{ \
+    cs = 0; \
+    if (row >= fs->min_byte1 && row <= fs->max_byte1 && \
+	col >= fs->min_char_or_byte2 && col <= fs->max_char_or_byte2) { \
+	if (fs->per_char == NULL) { \
+	    cs = &fs->min_bounds; \
+	} else { \
+	    cs = &fs->per_char[((row - fs->min_byte1) * \
+			        (fs->max_char_or_byte2 - \
+				 fs->min_char_or_byte2 + 1)) + \
+			       (col - fs->min_char_or_byte2)]; \
+        } \
+	if (CI_NONEXISTCHAR(cs)) \
+	    cs = 0; \
+    } \
+}
+
+static Boolean
+GridHasChar (Widget w, long ch)
+{
+    FontGridWidget	fgw = (FontGridWidget) w;
+#ifdef XRENDER
+    XftFont		*xft = fgw->fontgrid.text_face;
+    if (xft)
+    {
+	return FcCharSetHasChar (xft->charset, (FcChar32) ch);
+    }
+    else
+#endif
+    {
+	XFontStruct	*fs = fgw->fontgrid.text_font;
+	XCharStruct	*cs;
+	
+	if (!fs)
+	    return False;
+	if (fs->max_byte1 == 0)
+	{
+	    CI_GET_CHAR_INFO_1D (fs, ch, cs);
+	}
+	else
+	{
+	    unsigned int	r = (ch >> 8);
+	    unsigned int	c = (ch & 0xff);
+	    CI_GET_CHAR_INFO_2D (fs, r, c, cs);
+	}
+	return cs != 0;
+    }
+}
+
 /*
  * public routines
  */
 
-void GetFontGridCellDimensions (w, startp, ncolsp, nrowsp)
-    Widget w;
-    Dimension *startp;
-    int *ncolsp, *nrowsp;
+void 
+GetFontGridCellDimensions(Widget w, long *startp, 
+			  int *ncolsp, int *nrowsp)
 {
     FontGridWidget fgw = (FontGridWidget) w;
-    *startp = (long)fgw->fontgrid.start_char;
+    *startp = fgw->fontgrid.start_char;
     *ncolsp = fgw->fontgrid.cell_cols;
     *nrowsp = fgw->fontgrid.cell_rows;
 }
 
 
-void GetPrevNextStates (w, prevvalidp, nextvalidp)
-    Widget w;
-    Bool *prevvalidp, *nextvalidp;
+void 
+GetPrevNextStates(Widget w, Bool *prevvalidp, Bool *nextvalidp,
+		  Bool *prev16validp, Bool *next16validp)
 {
     FontGridWidget fgw = (FontGridWidget) w;
+    long minn = (long) GridFirstChar (w);
+    long maxn = (long) GridLastChar (w);
 
-    XFontStruct *fs = fgw->fontgrid.text_font;
-    long minn = (long) ((fs->min_byte1 << 0) | fs->min_char_or_byte2);
-    long maxn = (long) ((fs->max_byte1 << 8) | fs->max_char_or_byte2);
-
-    *prevvalidp = ((long)fgw->fontgrid.start_char > minn);
-    *nextvalidp = (((long)fgw->fontgrid.start_char +
+    *prev16validp = (fgw->fontgrid.start_char - 0xf00 > minn);
+    *prevvalidp = (fgw->fontgrid.start_char > minn);
+    *nextvalidp = (fgw->fontgrid.start_char +
+		   (fgw->fontgrid.cell_cols * fgw->fontgrid.cell_rows)
+		   < maxn);
+    *next16validp =((fgw->fontgrid.start_char + 0xf00 +
 		    (fgw->fontgrid.cell_cols * fgw->fontgrid.cell_rows))
 		   < maxn);
 }
@@ -174,18 +353,21 @@ void GetPrevNextStates (w, prevvalidp, nextvalidp)
  */
 
 
-static GC get_gc (fgw, fore)
-    FontGridWidget fgw;
-    Pixel fore;
+static GC 
+get_gc(FontGridWidget fgw, Pixel fore)
 {
     XtGCMask mask;
     XGCValues gcv;
 
-    mask = (GCForeground | GCBackground | GCFunction | GCFont);
+    mask = (GCForeground | GCBackground | GCFunction);
     gcv.foreground = fore;
     gcv.background = fgw->core.background_pixel;
     gcv.function = GXcopy;
-    gcv.font = fgw->fontgrid.text_font->fid;
+    if (fgw->fontgrid.text_font)
+    {
+	mask |= GCFont;
+	gcv.font = fgw->fontgrid.text_font->fid;
+    }
     gcv.cap_style = CapProjecting;
     mask |= GCCapStyle;
     if (fgw->fontgrid.grid_width > 0) {
@@ -197,26 +379,219 @@ static GC get_gc (fgw, fore)
 }
 
 
-static void ClassInitialize ()
+#ifdef XRENDER
+XtConvertArgRec xftColorConvertArgs[] = {
+    {XtWidgetBaseOffset, (XtPointer)XtOffsetOf(WidgetRec, core.screen),
+     sizeof(Screen *)},
+    {XtWidgetBaseOffset, (XtPointer)XtOffsetOf(WidgetRec, core.colormap),
+     sizeof(Colormap)}
+};
+
+#define	donestr(type, value, tstr) \
+	{							\
+	    if (toVal->addr != NULL) {				\
+		if (toVal->size < sizeof(type)) {		\
+		    toVal->size = sizeof(type);			\
+		    XtDisplayStringConversionWarning(dpy, 	\
+			(char*) fromVal->addr, tstr);		\
+		    return False;				\
+		}						\
+		*(type*)(toVal->addr) = (value);		\
+	    }							\
+	    else {						\
+		static type static_val;				\
+		static_val = (value);				\
+		toVal->addr = (XPointer)&static_val;		\
+	    }							\
+	    toVal->size = sizeof(type);				\
+	    return True;					\
+	}
+
+static void
+XmuFreeXftColor (XtAppContext app, XrmValuePtr toVal, XtPointer closure,
+		 XrmValuePtr args, Cardinal *num_args)
+{
+    Screen	*screen;
+    Colormap	colormap;
+    XftColor	*color;
+    
+    if (*num_args != 2)
+    {
+	XtAppErrorMsg (app,
+		       "freeXftColor", "wrongParameters",
+		       "XtToolkitError",
+		       "Freeing an XftColor requires screen and colormap arguments",
+		       (String *) NULL, (Cardinal *)NULL);
+	return;
+    }
+
+    screen = *((Screen **) args[0].addr);
+    colormap = *((Colormap *) args[1].addr);
+    color = (XftColor *) toVal->addr;
+    XftColorFree (DisplayOfScreen (screen),
+		  DefaultVisual (DisplayOfScreen (screen),
+				 XScreenNumberOfScreen (screen)),
+		  colormap, color);
+}
+    
+static Boolean
+XmuCvtStringToXftColor(Display *dpy,
+		       XrmValue *args, Cardinal *num_args,
+		       XrmValue *fromVal, XrmValue *toVal,
+		       XtPointer *converter_data)
+{
+    char	    *spec;
+    XRenderColor    renderColor;
+    XftColor	    xftColor;
+    Screen	    *screen;
+    Colormap	    colormap;
+    
+    if (*num_args != 2)
+    {
+	XtAppErrorMsg (XtDisplayToApplicationContext (dpy),
+		       "cvtStringToXftColor", "wrongParameters",
+		       "XtToolkitError",
+		       "String to render color conversion needs screen and colormap arguments",
+		       (String *) NULL, (Cardinal *)NULL);
+	return False;
+    }
+
+    screen = *((Screen **) args[0].addr);
+    colormap = *((Colormap *) args[1].addr);
+
+    spec = (char *) fromVal->addr;
+    if (strcasecmp (spec, XtDefaultForeground) == 0)
+    {
+	renderColor.red = 0;
+	renderColor.green = 0;
+	renderColor.blue = 0;
+	renderColor.alpha = 0xffff;
+    }
+    else if (strcasecmp (spec, XtDefaultBackground) == 0)
+    {
+	renderColor.red = 0xffff;
+	renderColor.green = 0xffff;
+	renderColor.blue = 0xffff;
+	renderColor.alpha = 0xffff;
+    }
+    else if (!XRenderParseColor (dpy, spec, &renderColor))
+	return False;
+    if (!XftColorAllocValue (dpy, 
+			     DefaultVisual (dpy,
+					    XScreenNumberOfScreen (screen)),
+			     colormap,
+			     &renderColor,
+			     &xftColor))
+	return False;
+    
+    donestr (XftColor, xftColor, XtRXftColor);
+}
+
+static void
+XmuFreeXftFont (XtAppContext app, XrmValuePtr toVal, XtPointer closure,
+		XrmValuePtr args, Cardinal *num_args)
+{
+    Screen  *screen;
+    XftFont *font;
+    
+    if (*num_args != 1)
+    {
+	XtAppErrorMsg (app,
+		       "freeXftFont", "wrongParameters",
+		       "XtToolkitError",
+		       "Freeing an XftFont requires screen argument",
+		       (String *) NULL, (Cardinal *)NULL);
+	return;
+    }
+
+    screen = *((Screen **) args[0].addr);
+    font = *((XftFont **) toVal->addr);
+    if (font)
+	XftFontClose (DisplayOfScreen (screen), font);
+}
+
+static Boolean
+XmuCvtStringToXftFont(Display *dpy,
+		      XrmValue *args, Cardinal *num_args,
+		      XrmValue *fromVal, XrmValue *toVal,
+		      XtPointer *converter_data)
+{
+    char    *name;
+    XftFont *font;
+    Screen  *screen;
+    
+    if (*num_args != 1)
+    {
+	XtAppErrorMsg (XtDisplayToApplicationContext (dpy),
+		       "cvtStringToXftFont", "wrongParameters",
+		       "XtToolkitError",
+		       "String to XftFont conversion needs screen argument",
+		       (String *) NULL, (Cardinal *)NULL);
+	return False;
+    }
+
+    screen = *((Screen **) args[0].addr);
+    name = (char *) fromVal->addr;
+    
+    font = 0;
+    if (name)
+    {
+	font = XftFontOpenName (dpy,
+				XScreenNumberOfScreen (screen),
+				name);
+	if (!font)
+	{
+	    XtDisplayStringConversionWarning(dpy, (char *) fromVal->addr, XtRXftFont);
+	    return False;
+	}
+    }
+    donestr (XftFont *, font, XtRXftFont);
+}
+
+static XtConvertArgRec xftFontConvertArgs[] = {
+    {XtWidgetBaseOffset, (XtPointer)XtOffsetOf(WidgetRec, core.screen),
+     sizeof(Screen *)},
+};
+
+#endif
+
+static void 
+ClassInitialize(void)
 {
     XtAddConverter (XtRString, XtRLong, XmuCvtStringToLong, NULL, 0);
+#ifdef XRENDER
+    XtSetTypeConverter (XtRString, XtRXftColor, 
+			XmuCvtStringToXftColor, 
+			xftColorConvertArgs, XtNumber(xftColorConvertArgs),
+			XtCacheByDisplay, XmuFreeXftColor);
+    XtSetTypeConverter (XtRString, XtRXftFont,
+			XmuCvtStringToXftFont,
+			xftFontConvertArgs, XtNumber(xftFontConvertArgs),
+			XtCacheByDisplay, XmuFreeXftFont);
+#endif
 }
 
 
-static void Initialize (request, new, args, num_args)
-    Widget request, new;
-    ArgList args;
-    Cardinal *num_args;
+static void 
+Initialize(Widget request, Widget new, ArgList args, Cardinal *num_args)
 {
     FontGridWidget reqfg = (FontGridWidget) request;
     FontGridWidget newfg = (FontGridWidget) new;
     XFontStruct *fs = newfg->fontgrid.text_font;
+#ifdef XRENDER
+    XftFont *xft = newfg->fontgrid.text_face;
+#endif
     unsigned maxn;
 
     if (reqfg->fontgrid.cell_cols <= 0)
       newfg->fontgrid.cell_cols = 16;
 
     if (reqfg->fontgrid.cell_rows <= 0) {
+#ifdef XRENDER
+	if (xft)
+	    newfg->fontgrid.cell_rows = 16;
+	else
+#endif
 	if (fs && fs->max_byte1 == 0) {
 	    newfg->fontgrid.cell_rows = (fs->max_char_or_byte2 / 
 					 newfg->fontgrid.cell_cols) + 1;
@@ -227,9 +602,9 @@ static void Initialize (request, new, args, num_args)
     }
 
     if (reqfg->fontgrid.cell_width <= 0)
-      newfg->fontgrid.cell_width = (fs ? DefaultCellWidth (newfg) : 1);
+      newfg->fontgrid.cell_width = DefaultCellWidth (newfg);
     if (reqfg->fontgrid.cell_height <= 0)
-      newfg->fontgrid.cell_height = (fs ? DefaultCellHeight (newfg) : 1);
+      newfg->fontgrid.cell_height = DefaultCellHeight (newfg);
 
     /* give a nice size that fits one screen full */
     if (newfg->core.width == 0)
@@ -248,38 +623,39 @@ static void Initialize (request, new, args, num_args)
      * select the first character
      */
 
-    if (newfg->fontgrid.start_char == 0xffff) {
-	newfg->fontgrid.start_char = (fs ? (unsigned)(fs->min_byte1 << 8) : 0);
-    }
-    if (fs) {
-	maxn = ((fs->max_byte1 << 8) | fs->max_char_or_byte2);
-	if (newfg->fontgrid.start_char > maxn) 
-	  newfg->fontgrid.start_char = (maxn + 1 - 
-					(newfg->fontgrid.cell_cols * 
-					 newfg->fontgrid.cell_rows));
-    }
+    if (newfg->fontgrid.start_char == 0xffffffff)
+	newfg->fontgrid.start_char = GridFirstChar(new) & ~0xff;
+    maxn = GridLastChar (new);
+    if (newfg->fontgrid.start_char > maxn) 
+	newfg->fontgrid.start_char = (maxn + 1 - 
+				      (newfg->fontgrid.cell_cols * 
+				       newfg->fontgrid.cell_rows));
 }
 
-static void Realize (gw, valueMask, attributes)
-    Widget gw;
-    Mask *valueMask;
-    XSetWindowAttributes *attributes;
+static void 
+Realize(Widget gw, Mask *valueMask, XSetWindowAttributes *attributes)
 {
     FontGridWidget fgw = (FontGridWidget) gw;
     FontGridPart *p = &fgw->fontgrid;
 
-    p->text_gc = get_gc (fgw, p->foreground_pixel);
+    p->text_gc = get_gc (fgw, GridForeground (fgw));
     p->box_gc = get_gc (fgw, p->box_pixel);
     Resize (gw);
 
     (*(XtSuperclass(gw)->core_class.realize)) (gw, valueMask, attributes);
+#ifdef XRENDER
+    p->draw = XftDrawCreate (XtDisplay (gw), XtWindow (gw),
+			     DefaultVisual (XtDisplay (gw),
+					    DefaultScreen(XtDisplay (gw))),
+			     fgw->core.colormap);
+#endif
     return;
 }
 
 
 
-static void Destroy (gw)
-    Widget gw;
+static void 
+Destroy(Widget gw)
 {
     FontGridWidget fgw = (FontGridWidget) gw;
 
@@ -288,8 +664,8 @@ static void Destroy (gw)
 }
 
 
-static void Resize (gw)
-    Widget gw;
+static void 
+Resize(Widget gw)
 {
     FontGridWidget fgw = (FontGridWidget) gw;
 
@@ -309,16 +685,17 @@ static void Resize (gw)
 
 
 /* ARGSUSED */
-static void Redisplay (gw, event, region)
-    Widget gw;
-    XEvent *event;
-    Region region;
+static void 
+Redisplay(Widget gw, XEvent *event, Region region)
 {
     FontGridWidget fgw = (FontGridWidget) gw;
     XRectangle rect;			/* bounding rect for region */
     int left, right, top, bottom;	/* which cells were damaged */
     int cw, ch;				/* cell size */
 
+#ifdef XRENDER
+    if (!fgw->fontgrid.text_face)
+#endif
     if (!fgw->fontgrid.text_font) {
 	Bell (gw, XkbBI_BadValue);
 	return;
@@ -339,10 +716,10 @@ static void Redisplay (gw, event, region)
 }
 
 
-static void paint_grid (fgw, col, row, ncols, nrows)
-    FontGridWidget fgw;			/* widget in which to draw */
-    int col, row;			/* where to start */
-    int ncols, nrows;			/* number of cells */
+static void 
+paint_grid(FontGridWidget fgw, 		/* widget in which to draw */ 
+	   int col, int row, 		/* where to start */          
+	   int ncols, int nrows)	/* number of cells */         
 {
     FontGridPart *p = &fgw->fontgrid;
     int i, j;
@@ -353,8 +730,7 @@ static void paint_grid (fgw, col, row, ncols, nrows)
     int tcols = p->cell_cols;
     int trows = p->cell_rows;
     int x1, y1, x2, y2, x, y;
-    unsigned maxn = ((p->text_font->max_byte1 << 8) |
-		     p->text_font->max_char_or_byte2);
+    unsigned maxn = GridLastChar ((Widget) fgw);
     unsigned n, prevn;
     int startx;
 
@@ -384,8 +760,6 @@ static void paint_grid (fgw, col, row, ncols, nrows)
 	    XDrawLine (dpy, wind, p->box_gc, x1, y, x2, y);
 	}
     }
-
-	
     /*
      * Draw a character in every box; treat all fonts as if they were 16bit
      * fonts.  Store the high eight bits in byte1 and the low eight bits in 
@@ -394,15 +768,45 @@ static void paint_grid (fgw, col, row, ncols, nrows)
     prevn = p->start_char + col + row * tcols;
     startx = col * cw + p->internal_pad + p->grid_width;
     for (j = 0,
-	 y = row * ch + p->internal_pad + p->grid_width + p->text_font->ascent;
+	 y = row * ch + p->internal_pad + p->grid_width + GridFontAscent (fgw);
 	 j < nrows; j++, y += ch) {
 	n = prevn;
 	for (i = 0, x = startx; i < ncols; i++, x += cw) {
-	    XChar2b thechar;
 	    int xoff = p->xoff, yoff = p->yoff;
-
 	    if (n > maxn) goto done;	/* no break out of nested */
 
+#ifdef XRENDER
+	    if (fgw->fontgrid.text_face)
+	    {
+		XftFont *xft = p->text_face;
+		FcChar32    c = n;
+		XGlyphInfo  extents;
+		XftTextExtents32 (dpy, xft, &c, 1, &extents);
+		if (p->center_chars)
+		{
+		    xoff = (p->cell_width - extents.width) / 2 - extents.x;
+		    yoff = (p->cell_height - extents.height) / 2 - extents.y;
+		}
+		if (extents.width && extents.height)
+		{
+		    XClearArea (dpy, wind, x + xoff - extents.x, 
+				y + yoff - extents.y,
+				extents.width, extents.height, False);
+		    if (p->box_chars)
+			XDrawRectangle (dpy, wind, p->box_gc,
+					x + xoff - extents.x, 
+					y + yoff - extents.y,
+					extents.width - 1,
+					extents.height - 1);
+		}
+		XftDrawString32 (p->draw, &p->fg_color, xft,
+				 x + xoff, y + yoff, &c, 1);
+	    }
+	    else
+#endif
+	    {
+	    XChar2b thechar;
+
 	    thechar.byte1 = (n >> 8);	/* high eight bits */
 	    thechar.byte2 = (n & 255);	/* low eight bits */
 	    if (p->box_chars || p->center_chars) {
@@ -436,20 +840,50 @@ static void paint_grid (fgw, col, row, ncols, nrows)
 	    }
 	    XDrawString16 (dpy, wind, p->text_gc, x + xoff, y + yoff,
 			   &thechar, 1);
+	    }
 	    n++;
 	}
 	prevn += tcols;
     }
 
   done:
+    /*
+     * paint the grid lines for the indicated rows 
+     */
+    if (p->grid_width > 0) {
+	int half_grid_width = p->grid_width >> 1;
+	x1 = col * cw + half_grid_width;
+	y1 = row * ch + half_grid_width;
+	x2 = x1 + ncols * cw;
+	y2 = y1 + nrows * ch;
+	for (i = 0, x = x1; i <= ncols; i++, x += cw) {
+	    XDrawLine (dpy, wind, p->box_gc, x, y1, x, y2);
+	}
+	for (i = 0, y = y1; i <= nrows; i++, y += ch) {
+	    XDrawLine (dpy, wind, p->box_gc, x1, y, x2, y);
+	}
+    }
+
+	
     return;
 }
 
+static Boolean
+PageBlank (Widget w, long first, long last)
+{
+    while (first <= last)
+    {
+	if (GridHasChar (w, first))
+	    return False;
+	first++;
+    }
+    return True;
+}
+
 /*ARGSUSED*/
-static Boolean SetValues (current, request, new, args, num_args)
-    Widget current, request, new;
-    ArgList args;
-    Cardinal *num_args;
+static Boolean 
+SetValues(Widget current, Widget request, Widget new, 
+	  ArgList args, Cardinal *num_args)
 {
     FontGridWidget curfg = (FontGridWidget) current;
     FontGridWidget newfg = (FontGridWidget) new;
@@ -462,10 +896,9 @@ static Boolean SetValues (current, request, new, args, num_args)
 	redisplay = TRUE;
     }
 
-    if (curfg->fontgrid.foreground_pixel != newfg->fontgrid.foreground_pixel) {
+    if (GridForeground(curfg) != GridForeground (newfg)) {
 	XtReleaseGC (new, curfg->fontgrid.text_gc);
-	newfg->fontgrid.text_gc = get_gc (newfg,
-					  newfg->fontgrid.foreground_pixel);
+	newfg->fontgrid.text_gc = get_gc (newfg, GridForeground (newfg));
 	redisplay = TRUE;
     }
 
@@ -480,14 +913,29 @@ static Boolean SetValues (current, request, new, args, num_args)
       redisplay = TRUE;
 
     if (curfg->fontgrid.start_char != newfg->fontgrid.start_char) {
-	XFontStruct *fs = newfg->fontgrid.text_font;
-	unsigned maxn = ((fs->max_byte1 << 8) | fs->max_char_or_byte2);
+	long maxn = GridLastChar (new);
+	long page = newfg->fontgrid.cell_cols * newfg->fontgrid.cell_rows;
+	long dir = page;
+	long start = newfg->fontgrid.start_char;
+
+	if (start < curfg->fontgrid.start_char)
+	    dir = -page;
+
+	if (start < 0)
+	    start = 0;
+	if (start > maxn) 
+	  start = (maxn / page) * page;
+	
+	while (PageBlank (new, start, start + page - 1))
+	{
+	    long    next = start + dir;
 
-	if (newfg->fontgrid.start_char > maxn) 
-	  newfg->fontgrid.start_char = (maxn + 1 - 
-					(newfg->fontgrid.cell_cols * 
-					 newfg->fontgrid.cell_rows));
+	    if (next < 0 || maxn < next)
+		break;
+	    start = next;
+	}
 
+	newfg->fontgrid.start_char = start;
 	redisplay = (curfg->fontgrid.start_char != newfg->fontgrid.start_char);
     }
 
@@ -496,11 +944,8 @@ static Boolean SetValues (current, request, new, args, num_args)
 
 
 /* ARGSUSED */
-static void Notify (gw, event, params, nparams)
-    Widget gw;
-    XEvent *event;
-    String *params;
-    Cardinal *nparams;
+static void 
+Notify(Widget gw, XEvent *event, String *params, Cardinal *nparams)
 {
     FontGridWidget fgw = (FontGridWidget) gw;
     int x, y;				/* where the event happened */
@@ -546,8 +991,10 @@ static void Notify (gw, event, params, nparams)
 	    ((y / ch) * fgw->fontgrid.cell_cols) + (x / cw));
 
 	rec.thefont = fgw->fontgrid.text_font;
-	rec.thechar.byte1 = (n >> 8);
-	rec.thechar.byte2 = (n & 255);
+#ifdef XRENDER
+	rec.theface = fgw->fontgrid.text_face;
+#endif
+	rec.thechar = n;
     }
 
     XtCallCallbacks (gw, XtNcallback, (XtPointer) &rec);