fontxlfd.c

unix vnc 协议源码. VNC是一款远程控制工具软件.

		    if (which == POINTSIZE_MASK)
			vals->values_supplied |= POINTSIZE_ARRAY;
		    else
			vals->values_supplied |= PIXELSIZE_ARRAY;
		}
		else ptr = (char *)0;
	    }
	}
    }
    else
    {
	int value;
	if (ptr = GetInt(ptr, &value))
	{
	    vals->values_supplied &= ~which;
	    if (value > 0)
	    {
		matrix[3] = (double)value;
		if (which == POINTSIZE_MASK)
		{
		    matrix[3] /= 10.0;
		    vals->values_supplied |= POINTSIZE_SCALAR;
		}
		else
		    vals->values_supplied |= PIXELSIZE_SCALAR;
		/* If we're concocting the pixelsize array from a scalar,
		   we will need to normalize element 0 for the pixel shape.
		   This is done in FontFileCompleteXLFD(). */
		matrix[0] = matrix[3];
		matrix[1] = matrix[2] = 0.0;
	    }
	    else if (value < 0)
	    {
		if (which == POINTSIZE_MASK)
		    vals->values_supplied |= POINTSIZE_WILDCARD;
		else
		    vals->values_supplied |= PIXELSIZE_WILDCARD;
	    }
	}
    }
    return ptr;
}


static void append_ranges(fname, nranges, ranges)
char *fname;
int nranges;
fsRange *ranges;
{
    if (nranges)
    {
        int i;

        strcat(fname, "[");
        for (i = 0; i < nranges && strlen(fname) < 1010; i++)
        {
	    if (i) strcat(fname, " ");
	    sprintf(fname + strlen(fname), "%d",
		    minchar(ranges[i]));
	    if (ranges[i].min_char_low ==
	        ranges[i].max_char_low &&
	        ranges[i].min_char_high ==
	        ranges[i].max_char_high) continue;
	    sprintf(fname + strlen(fname), "_%d",
		    maxchar(ranges[i]));
        }
        strcat(fname, "]");
    }
}

Bool
FontParseXLFDName(fname, vals, subst)
    char       *fname;
    FontScalablePtr vals;
    int         subst;
{
    register char *ptr;
    register char *ptr1,
               *ptr2,
               *ptr3,
               *ptr4;
    register char *ptr5;
    FontScalableRec tmpvals;
    char        replaceChar = '0';
    char        tmpBuf[1024];
    int         spacingLen;
    int		l;
    char	*p;

    bzero(&tmpvals, sizeof(tmpvals));
    if (subst != FONT_XLFD_REPLACE_VALUE)
	*vals = tmpvals;

    if (!(*(ptr = fname) == '-' || *ptr++ == '*' && *ptr == '-') ||  /* fndry */
	    !(ptr = strchr(ptr + 1, '-')) ||	/* family_name */
	    !(ptr1 = ptr = strchr(ptr + 1, '-')) ||	/* weight_name */
	    !(ptr = strchr(ptr + 1, '-')) ||	/* slant */
	    !(ptr = strchr(ptr + 1, '-')) ||	/* setwidth_name */
	    !(ptr = strchr(ptr + 1, '-')) ||	/* add_style_name */
	    !(ptr = strchr(ptr + 1, '-')) ||	/* pixel_size */
	    !(ptr = GetMatrix(ptr + 1, &tmpvals, PIXELSIZE_MASK)) ||
	    !(ptr2 = ptr = GetMatrix(ptr + 1, &tmpvals, POINTSIZE_MASK)) ||
	    !(ptr = GetInt(ptr + 1, &tmpvals.x)) ||	/* resolution_x */
	    !(ptr3 = ptr = GetInt(ptr + 1, &tmpvals.y)) ||  /* resolution_y */
	    !(ptr4 = ptr = strchr(ptr + 1, '-')) ||	/* spacing */
	    !(ptr5 = ptr = GetInt(ptr + 1, &tmpvals.width)) || /* average_width */
	    !(ptr = strchr(ptr + 1, '-')) ||	/* charset_registry */
	    strchr(ptr + 1, '-'))/* charset_encoding */
	return FALSE;

    /* Lop off HP charset subsetting enhancement.  Interpreting this
       field requires allocating some space in which to return the
       results.  So, to prevent memory leaks, this procedure will simply
       lop off and ignore charset subsetting, and initialize the
       relevant vals fields to zero.  It's up to the caller to make its
       own call to FontParseRanges() if it's interested in the charset
       subsetting.  */

    if (subst != FONT_XLFD_REPLACE_NONE &&
	(p = strchr(strrchr(fname, '-'), '[')))
    {
	tmpvals.values_supplied |= CHARSUBSET_SPECIFIED;
	*p = '\0';
    }

    /* Fill in deprecated fields for the benefit of rasterizers that care
       about them. */
    tmpvals.pixel = (tmpvals.pixel_matrix[3] >= 0) ?
		    (int)(tmpvals.pixel_matrix[3] + .5) :
		    (int)(tmpvals.pixel_matrix[3] - .5);
    tmpvals.point = (tmpvals.point_matrix[3] >= 0) ?
                    (int)(tmpvals.point_matrix[3] * 10 + .5) :
                    (int)(tmpvals.point_matrix[3] * 10 - .5);

    spacingLen = ptr4 - ptr3 + 1;

    switch (subst) {
    case FONT_XLFD_REPLACE_NONE:
	*vals = tmpvals;
	break;
    case FONT_XLFD_REPLACE_STAR:
	replaceChar = '*';
    case FONT_XLFD_REPLACE_ZERO:
	strcpy(tmpBuf, ptr2);
	ptr5 = tmpBuf + (ptr5 - ptr2);
	ptr3 = tmpBuf + (ptr3 - ptr2);
	ptr2 = tmpBuf;
	ptr = ptr1 + 1;

	ptr = strchr(ptr, '-') + 1;		/* skip weight */
	ptr = strchr(ptr, '-') + 1;		/* skip slant */
	ptr = strchr(ptr, '-') + 1;		/* skip setwidth_name */
	ptr = strchr(ptr, '-') + 1;		/* skip add_style_name */

	if ((ptr - fname) + spacingLen + strlen(ptr5) + 10 >= (unsigned)1024)
	    return FALSE;
	*ptr++ = replaceChar;
	*ptr++ = '-';
	*ptr++ = replaceChar;
	*ptr++ = '-';
	*ptr++ = '*';
	*ptr++ = '-';
	*ptr++ = '*';
	if (spacingLen > 2)
	{
	    memmove(ptr, ptr3, spacingLen);
	    ptr += spacingLen;
	}
	else
	{
	    *ptr++ = '-';
	    *ptr++ = '*';
	    *ptr++ = '-';
	}
	*ptr++ = replaceChar;
	strcpy(ptr, ptr5);
	*vals = tmpvals;
	break;
    case FONT_XLFD_REPLACE_VALUE:
	if (vals->values_supplied & PIXELSIZE_MASK)
	{
	    tmpvals.values_supplied =
		(tmpvals.values_supplied & ~PIXELSIZE_MASK) |
		(vals->values_supplied & PIXELSIZE_MASK);
	    tmpvals.pixel_matrix[0] = vals->pixel_matrix[0];
	    tmpvals.pixel_matrix[1] = vals->pixel_matrix[1];
	    tmpvals.pixel_matrix[2] = vals->pixel_matrix[2];
	    tmpvals.pixel_matrix[3] = vals->pixel_matrix[3];
	}
	if (vals->values_supplied & POINTSIZE_MASK)
	{
	    tmpvals.values_supplied =
		(tmpvals.values_supplied & ~POINTSIZE_MASK) |
		(vals->values_supplied & POINTSIZE_MASK);
	    tmpvals.point_matrix[0] = vals->point_matrix[0];
	    tmpvals.point_matrix[1] = vals->point_matrix[1];
	    tmpvals.point_matrix[2] = vals->point_matrix[2];
	    tmpvals.point_matrix[3] = vals->point_matrix[3];
	}
	if (vals->x >= 0)
	    tmpvals.x = vals->x;
	if (vals->y >= 0)
	    tmpvals.y = vals->y;
	if (vals->width >= 0)
	    tmpvals.width = vals->width;
	else if (vals->width < -1)	/* overload: -1 means wildcard */
	    tmpvals.width = -vals->width;


	p = ptr1 + 1;				/* weight field */
	l = strchr(p, '-') - p;
	sprintf(tmpBuf, "%*.*s", l, l, p);

	p += l + 1;				/* slant field */
	l = strchr(p, '-') - p;
	sprintf(tmpBuf + strlen(tmpBuf), "-%*.*s", l, l, p);

	p += l + 1;				/* setwidth_name */
	l = strchr(p, '-') - p;
	sprintf(tmpBuf + strlen(tmpBuf), "-%*.*s", l, l, p);

	p += l + 1;				/* add_style_name field */
	l = strchr(p, '-') - p;
	sprintf(tmpBuf + strlen(tmpBuf), "-%*.*s", l, l, p);

	strcat(tmpBuf, "-");
	if ((tmpvals.values_supplied & PIXELSIZE_MASK) == PIXELSIZE_ARRAY)
	{
	    char buffer[80];
	    strcat(tmpBuf, "[");
	    strcat(tmpBuf, xlfd_double_to_text(tmpvals.pixel_matrix[0],
		   buffer, 0));
	    strcat(tmpBuf, xlfd_double_to_text(tmpvals.pixel_matrix[1],
		   buffer, 1));
	    strcat(tmpBuf, xlfd_double_to_text(tmpvals.pixel_matrix[2],
		   buffer, 1));
	    strcat(tmpBuf, xlfd_double_to_text(tmpvals.pixel_matrix[3],
		   buffer, 1));
	    strcat(tmpBuf, "]");
	}
	else
	{
	    sprintf(tmpBuf + strlen(tmpBuf), "%d",
		    (int)(tmpvals.pixel_matrix[3] + .5));
	}
	strcat(tmpBuf, "-");
	if ((tmpvals.values_supplied & POINTSIZE_MASK) == POINTSIZE_ARRAY)
	{
	    char buffer[80];
	    strcat(tmpBuf, "[");
	    strcat(tmpBuf, xlfd_double_to_text(tmpvals.point_matrix[0],
		   buffer, 0));
	    strcat(tmpBuf, xlfd_double_to_text(tmpvals.point_matrix[1],
		   buffer, 1));
	    strcat(tmpBuf, xlfd_double_to_text(tmpvals.point_matrix[2],
		   buffer, 1));
	    strcat(tmpBuf, xlfd_double_to_text(tmpvals.point_matrix[3],
		   buffer, 1));
	    strcat(tmpBuf, "]");
	}
	else
	{
	    sprintf(tmpBuf + strlen(tmpBuf), "%d",
		    (int)(tmpvals.point_matrix[3] * 10.0 + .5));
	}
	sprintf(tmpBuf + strlen(tmpBuf), "-%d-%d%*.*s%d%s",
		tmpvals.x, tmpvals.y,
		spacingLen, spacingLen, ptr3, tmpvals.width, ptr5);
	strcpy(ptr1 + 1, tmpBuf);
	if ((vals->values_supplied & CHARSUBSET_SPECIFIED) && !vals->nranges)
	    strcat(fname, "[]");
	else
	    append_ranges(fname, vals->nranges, vals->ranges);
	break;
    }
    return TRUE;
}

fsRange *FontParseRanges(name, nranges)
char *name;
int *nranges;
{
    int n;
    unsigned long l;
    char *p1, *p2;
    fsRange *result = (fsRange *)0;

    name = strchr(name, '-');
    for (n = 1; name && n < 14; n++)
	name = strchr(name + 1, '-');

    *nranges = 0;
    if (!name || !(p1 = strchr(name, '['))) return (fsRange *)0;
    p1++;

    while (*p1 && *p1 != ']')
    {
	fsRange thisrange;

	l = strtol(p1, &p2, 0);
	if (p2 == p1 || l > 0xffff) break;
	thisrange.max_char_low = thisrange.min_char_low = l & 0xff;
	thisrange.max_char_high = thisrange.min_char_high = l >> 8;

	p1 = p2;
	if (*p1 == ']' || *p1 == ' ')
	{
	    while (*p1 == ' ') p1++;
	    if (add_range(&thisrange, nranges, &result, TRUE) != Successful)
		break;
	}
	else if (*p1 == '_')
	{
	    l = strtol(++p1, &p2, 0);
	    if (p2 == p1 || l > 0xffff) break;
	    thisrange.max_char_low = l & 0xff;
	    thisrange.max_char_high = l >> 8;
	    p1 = p2;
	    if (*p1 == ']' || *p1 == ' ')
	    {
		while (*p1 == ' ') p1++;
		if (add_range(&thisrange, nranges, &result, TRUE) != Successful)
		    break;
	    }
	}
	else break;
    }

    return result;
}