/* $TOG: spinfo.c /main/17 1997/06/09 14:19:24 barstow $ *//* * Copyright 1990, 1991 Network Computing Devices; * Portions Copyright 1987 by Digital Equipment Corporation * * Permission to use, copy, modify, distribute, and sell this software and * its documentation for any purpose is hereby granted without fee, provided * that the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation, and that the names of Network Computing Devices or Digital * not be used in advertising or publicity pertaining to distribution of * the software without specific, written prior permission. * * NETWORK COMPUTING DEVICES AND DIGITAL DISCLAIM ALL WARRANTIES WITH * REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS, IN NO EVENT SHALL NETWORK COMPUTING DEVICES OR DIGITAL BE * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * * Author: Dave Lemke, Network Computing Devices, Inc *//*Copyright (c) 1987  X ConsortiumPermission is hereby granted, free of charge, to any person obtaininga copy of this software and associated documentation files (the"Software"), to deal in the Software without restriction, includingwithout limitation the rights to use, copy, modify, merge, publish,distribute, sublicense, and/or sell copies of the Software, and topermit persons to whom the Software is furnished to do so, subject tothe following conditions:The above copyright notice and this permission notice shall be includedin all copies or substantial portions of the Software.THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESSOR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OFMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OROTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OROTHER DEALINGS IN THE SOFTWARE.Except as contained in this notice, the name of the X Consortium shallnot be used in advertising or otherwise to promote the sale, use orother dealings in this Software without prior written authorizationfrom the X Consortium.*/#include "fntfilst.h"#include "spint.h"#include <math.h>/* percentage of pointsize used to specify ascent & descent */#define	STRETCH_FACTOR	120enum scaleType {    atom, truncate_atom, pixel_size, point_size, resolution_x,    resolution_y, average_width};typedef struct _fontProp {    char       *name;    long        atom;    enum scaleType type;}           fontProp;static fontProp fontNamePropTable[] = {    "FOUNDRY", 0, atom,    "FAMILY_NAME", 0, atom,    "WEIGHT_NAME", 0, atom,    "SLANT", 0, atom,    "SETWIDTH_NAME", 0, atom,    "ADD_STYLE_NAME", 0, atom,    "PIXEL_SIZE", 0, pixel_size,    "POINT_SIZE", 0, point_size,    "RESOLUTION_X", 0, resolution_x,    "RESOLUTION_Y", 0, resolution_y,    "SPACING", 0, atom,    "AVERAGE_WIDTH", 0, average_width,    "CHARSET_REGISTRY", 0, atom,    "CHARSET_ENCODING", 0, truncate_atom,};/* Warning: following array is closely related to the sequence of   defines after it. */static fontProp extraProps[] = {    "FONT", 0, 0,    "COPYRIGHT", 0, 0,    "RAW_PIXEL_SIZE", 0, 0,    "RAW_POINT_SIZE", 0, 0,    "RAW_ASCENT", 0, 0,    "RAW_DESCENT", 0, 0,    "RAW_AVERAGE_WIDTH", 0, 0,};/* this is a bit kludgy */#define	FONTPROP	0#define	COPYRIGHTPROP	1#define RAWPIXELPROP	2#define RAWPOINTPROP	3#define RAWASCENTPROP	4#define RAWDESCENTPROP	5#define RAWWIDTHPROP	6#define NNAMEPROPS (sizeof(fontNamePropTable) / sizeof(fontProp))#define NEXTRAPROPS (sizeof(extraProps) / sizeof(fontProp))#define	NPROPS	(NNAMEPROPS + NEXTRAPROPS)voidsp_make_standard_props(){    int         i;    fontProp   *t;    i = sizeof(fontNamePropTable) / sizeof(fontProp);    for (t = fontNamePropTable; i; i--, t++)	t->atom = MakeAtom(t->name, (unsigned) strlen(t->name), TRUE);    i = sizeof(extraProps) / sizeof(fontProp);    for (t = extraProps; i; i--, t++)	t->atom = MakeAtom(t->name, (unsigned) strlen(t->name), TRUE);}voidsp_make_header(spf, pinfo)    SpeedoFontPtr spf;    FontInfoPtr pinfo;{    int         pixel_size;    SpeedoMasterFontPtr spmf = spf->master;    pinfo->firstCol = spmf->first_char_id & 0xff;    pinfo->firstRow = spmf->first_char_id >> 8;    pinfo->lastCol = spmf->max_id & 0xff;    pinfo->lastRow = spmf->max_id >> 8;    /* XXX -- hackery here */    pinfo->defaultCh = 0;/* computed by FontComputeInfoAccelerators: *  noOverlap *  constantMetrics *  terminalFont *  constantWidth *  inkInside */    pinfo->inkMetrics = 0;    pinfo->allExist = 0;    pinfo->drawDirection = LeftToRight;    pinfo->cachable = 1;    if (spf->specs.xxmult != spf->specs.yymult)	pinfo->anamorphic = TRUE;    else	pinfo->anamorphic = FALSE;/* computed by sp_compute_bounds: *  maxOverlap *  maxbounds *  minbounds *  ink_maxbounds *  ink_minbounds */    pixel_size = spf->vals.pixel_matrix[3] * STRETCH_FACTOR / 100;    pinfo->fontAscent = pixel_size * 764 / 1000;	/* 764 == EM_TOP */    pinfo->fontDescent = pixel_size - pinfo->fontAscent;}static voidadjust_min_max(minc, maxc, tmp)    xCharInfo  *minc,               *maxc,               *tmp;{#define MINMAX(field,ci) \	if (minc->field > (ci)->field) \	     minc->field = (ci)->field; \	if (maxc->field < (ci)->field) \	    maxc->field = (ci)->field;    MINMAX(ascent, tmp);    MINMAX(descent, tmp);    MINMAX(leftSideBearing, tmp);    MINMAX(rightSideBearing, tmp);    MINMAX(characterWidth, tmp);    if ((INT16)minc->attributes > (INT16)tmp->attributes)	minc->attributes = tmp->attributes;    if ((INT16)maxc->attributes < (INT16)tmp->attributes)	maxc->attributes = tmp->attributes;#undef	MINMAX}voidsp_compute_bounds(spf, pinfo, flags, sWidth)    SpeedoFontPtr spf;    FontInfoPtr pinfo;    unsigned long flags;    long *sWidth;{    int         i,                id,                index,		maxOverlap,		overlap,		total_width = 0;    xCharInfo   minchar,                maxchar,                tmpchar;    bbox_t      bbox;    fix31       width;    double      pix_width;    SpeedoMasterFontPtr spmf = spf->master;    int	firstChar;    int num_chars = 0;    firstChar = spmf->first_char_id;    minchar.ascent = minchar.descent =	minchar.leftSideBearing = minchar.rightSideBearing =	minchar.characterWidth = minchar.attributes = 32767;    maxchar.ascent = maxchar.descent =	maxchar.leftSideBearing = maxchar.rightSideBearing =	maxchar.characterWidth = maxchar.attributes = -32767;    maxOverlap = -32767;    *sWidth = 0;    for (i = 0; i < spmf->num_chars; i++) {	int j;	int char_id;	index = spmf->enc[i * 2 + 1];	char_id = spmf->enc[i * 2];      /*       * See if this character is in the list of ranges specified in the       * XLFD name       */	for (j = 0; j < spf->vals.nranges; j++)	    if (char_id >= mincharno(spf->vals.ranges[j]) &&		    char_id <= maxcharno(spf->vals.ranges[j]))		break;	if (spf->vals.nranges && j == spf->vals.nranges)	    continue;	num_chars++;	if (!(flags & ComputeBoundsOnly)) {	    width = sp_get_char_width(index);	    /* convert to pixel coords */	    pix_width = (int)width * (spf->specs.xxmult / 65536L) +		((int) width * (spf->specs.xxmult % 65536L))		/ 65536L;	    pix_width /= 65536L;	    (void) sp_get_char_bbox(index, &bbox);	    bbox.ymax = (bbox.ymax + 32768L) >> 16;	    bbox.ymin = (bbox.ymin + 32768L) >> 16;	    bbox.xmin = (bbox.xmin + 32768L) >> 16;	    bbox.xmax = (bbox.xmax + 32768L) >> 16;	    tmpchar.ascent = bbox.ymax;	    tmpchar.descent = -bbox.ymin;	    tmpchar.characterWidth = (int)(pix_width +		/* round */					   (pix_width > 0 ? 0.5 : -0.5));	    tmpchar.rightSideBearing = bbox.xmax;	    tmpchar.leftSideBearing = bbox.xmin;	    if (!tmpchar.characterWidth &&		tmpchar.ascent == -tmpchar.descent &&		tmpchar.rightSideBearing == tmpchar.leftSideBearing)	    {		/* Character appears non-existent, probably as a result		   of the transformation.  Let's give it one pixel in		   the universe so it's not mistaken for non-existent. */		tmpchar.leftSideBearing = tmpchar.descent = 0;		tmpchar.rightSideBearing = tmpchar.ascent = 1;	    }	    tmpchar.attributes = (int)((double)(int)width / 65.536 + .5);	}	else	    tmpchar = spf->encoding[char_id - firstChar].metrics;	adjust_min_max(&minchar, &maxchar, &tmpchar);	overlap = tmpchar.rightSideBearing - tmpchar.characterWidth;	if (maxOverlap < overlap)	    maxOverlap = overlap;	total_width += ((int)(INT16)tmpchar.attributes);	*sWidth += abs((int)(INT16)tmpchar.attributes);	if (flags & SaveMetrics) {	    id = spmf->enc[i * 2] - firstChar;	    assert(id <= spmf->max_id - firstChar);	    spf->encoding[id].metrics = tmpchar;	}    }    if (num_chars > 0)    {	*sWidth = (int)(((double)*sWidth * 10.0 + (double)num_chars / 2.0) /			  num_chars);	if (total_width < 0)	{	    /* Predominant direction is R->L */	    *sWidth = -*sWidth;	}	spf->vals.width = (int)((double)*sWidth * spf->vals.pixel_matrix[0] /				1000.0 +				(spf->vals.pixel_matrix[0] > 0 ? .5 : -.5));    }    else    {	spf->vals.width = 0;    }    pinfo->maxbounds = maxchar;    pinfo->minbounds = minchar;    pinfo->ink_maxbounds = maxchar;    pinfo->ink_minbounds = minchar;    pinfo->maxOverlap = maxOverlap;}voidsp_compute_props(spf, fontname, pinfo, sWidth)    SpeedoFontPtr spf;    char       *fontname;    FontInfoPtr pinfo;    long	sWidth;{    FontPropPtr pp;    int         i,                nprops;    fontProp   *fpt;    char       *is_str;    char       *ptr1,               *ptr2;    char       *ptr3;    char	tmpname[1024];    FontScalableRec tmpvals;    nprops = pinfo->nprops = NPROPS;    pinfo->isStringProp = (char *) xalloc(sizeof(char) * nprops);    pinfo->props = (FontPropPtr) xalloc(sizeof(FontPropRec) * nprops);    if (!pinfo->isStringProp || !pinfo->props) {	xfree(pinfo->isStringProp);	pinfo->isStringProp = (char *) 0;	xfree(pinfo->props);	pinfo->props = (FontPropPtr) 0;	return;    }    bzero(pinfo->isStringProp, (sizeof(char) * nprops));    ptr2 = fontname;    for (i = NNAMEPROPS, pp = pinfo->props, fpt = fontNamePropTable,	    is_str = pinfo->isStringProp;	    i;	    i--, pp++, fpt++, is_str++) {        if (*ptr2)        {            ptr1 = ptr2 + 1;            if (!(ptr2 = strchr(ptr1, '-'))) ptr2 = strchr(ptr1, '\0');        }	pp->name = fpt->atom;	switch (fpt->type) {	case atom:	    *is_str = TRUE;	    pp->value = MakeAtom(ptr1, ptr2 - ptr1, TRUE);	    break;	case truncate_atom:	    *is_str = TRUE;	    for (ptr3 = ptr1; *ptr3; ptr3++)		if (*ptr3 == '[')		    break;	    pp->value = MakeAtom(ptr1, ptr3 - ptr1, TRUE);	    break;	case pixel_size:	    pp->value = (int)(spf->vals.pixel_matrix[3] +			      (spf->vals.pixel_matrix[3] > 0 ? .5 : -.5));	    break;	case point_size:	    pp->value = (int)(spf->vals.point_matrix[3] * 10.0 +			      (spf->vals.point_matrix[3] > 0 ? .5 : -.5));	    break;	case resolution_x:	    pp->value = spf->vals.x;	    break;	case resolution_y:	    pp->value = spf->vals.y;	    break;	case average_width:	    pp->value = spf->vals.width;	    break;	}    }    for (i = 0, fpt = extraProps; i < NEXTRAPROPS; i++, is_str++, pp++, fpt++) {	pp->name = fpt->atom;	switch (i) {	case FONTPROP:	    *is_str = TRUE;	    strcpy(tmpname, fontname);	    FontParseXLFDName(tmpname, &tmpvals, FONT_XLFD_REPLACE_ZERO);	    FontParseXLFDName(tmpname, &spf->vals, FONT_XLFD_REPLACE_VALUE);	    pp->value = MakeAtom(tmpname, strlen(tmpname), TRUE);	    break;	case COPYRIGHTPROP:	    *is_str = TRUE;	    pp->value = MakeAtom(spf->master->copyright,				 strlen(spf->master->copyright), TRUE);	    break;         case RAWPIXELPROP:            *is_str = FALSE;            pp->value = 1000;	    break;         case RAWPOINTPROP:            *is_str = FALSE;            pp->value = (long)(72270.0 / (double)spf->vals.y + .5);	    break;         case RAWASCENTPROP:            *is_str = FALSE;            pp->value = STRETCH_FACTOR * 764 / 100;	    break;         case RAWDESCENTPROP:            *is_str = FALSE;            pp->value = STRETCH_FACTOR * 236 / 100;	    break;         case RAWWIDTHPROP:            *is_str = FALSE;            pp->value = sWidth;	    break;	}    }}