graphics/psdrv/afm.c - wine - Git at Google

 /*
  *	Adobe Font Metric (AFM) file parsing
  *	See http://www.adobe.com/supportservice/devrelations/PDFS/TN/5004.AFM_Spec.pdf
  *
  *	Copyright 1998  Huw D M Davies
  *
  */

 #include <string.h>
 #include "windows.h"
 #include "winnt.h" /* HEAP_ZERO_MEMORY */
 #include "psdrv.h"
 #include "options.h"
 #include "debug.h"
 #include "heap.h"
 #include <ctype.h>

 /* ptr to fonts for which we have afm files */
 FONTFAMILY *PSDRV_AFMFontList = NULL;


 /***********************************************************
  *
  *	PSDRV_AFMGetCharMetrics
  *
  * Parses CharMetric section of AFM file.
  *
  * Actually only collects the widths of numbered chars and puts then in
  * afm->CharWidths.
  */
 static void PSDRV_AFMGetCharMetrics(AFM *afm, FILE *fp)
 {
     char buf[256];
     char *cp, *item, *value;
     int i, charno;

     for(i = 0; i < afm->NumofMetrics; i++) {
         char *name = NULL;

         if(!fgets(buf, sizeof(buf), fp)) {
 	   ERR(psdrv, "Unexpected EOF\n");
 	   return;
 	}
 	cp = buf + strlen(buf);
 	do {
 	    *cp = '\0';
 	    cp--;
 	} while(cp > buf && isspace(*cp));

         item = strtok(buf, ";");
 	if(!strncmp(item, "C ", 2)) {
 	    value = strchr(item, ' ');
 	    sscanf(value, " %d", &charno);
 	} else if(!strncmp(item, "CH ", 3)) {
 	    value = strrchr(item, ' ');
 	    sscanf(value, " %x", &charno);
 	} else {
 	    WARN(psdrv, "Don't understand '%s'\n", item);
 	    return;
 	}

 	while((item = strtok(NULL, ";"))) {
 	    while(isspace(*item))
 	        item++;
 	    value = strchr(item, ' ');
 	    if(!value) /* last char maybe a ';' but no white space after it */
 	        break;
 	    value++;

 	    if(!strncmp("WX ", item, 3) || !strncmp("W0X ", item, 4)) {
 	        if(charno >= 0 && charno <= 0xff)
 		    sscanf(value, "%f", &(afm->CharWidths[charno]));
 	    }
 	    /* would carry on here to scan in BBox, name and ligs */

 	    /* Carry on to find BBox (or actually just ascent) of Aring. This
 	       will provide something like the lfHeight value */

 	    else if(!strncmp("N ", item, 2)) {
 	        name = value; /* may end in space */
 	    }

 	    else if(!strncmp("B ", item, 2)) {
 	        if(name && !strncmp("Aring", name, 5)) {
 		    float llx, lly, urx, ury;
 		    llx = lly = urx = ury = 0.0;
 		    sscanf(value, "%f%f%f%f", &llx, &lly, &urx, &ury);
 		    afm->FullAscender = ury;
 		}
 	    }

 	}
     }

     return;
 }

 /***********************************************************
  *
  *	PSDRV_AFMParse
  *
  * Fills out an AFM structure and associated substructures (see psdrv.h)
  * for a given AFM file. All memory is allocated from the process heap.
  * Returns a ptr to the AFM structure or NULL on error.
  *
  * This is not complete (we don't handle kerning yet) and not efficient
  */
 static AFM *PSDRV_AFMParse(char const *file)
 {
     FILE *fp;
     char buf[256];
     char *value;
     AFM *afm;
     char *cp;

     if((fp = fopen(file, "r")) == NULL) {
         MSG("Can't open AFM file '%s'. Please check wine.conf .\n", file);
         return NULL;
     }

     afm = HeapAlloc(PSDRV_Heap, HEAP_ZERO_MEMORY, sizeof(AFM));
     if(!afm) {
         fclose(fp);
         return NULL;
     }

     while(fgets(buf, sizeof(buf), fp)) {
 	cp = buf + strlen(buf);
 	do {
 	    *cp = '\0';
 	    cp--;
 	} while(cp > buf && isspace(*cp));

         value = strchr(buf, ' ');
 	if(value)
 	    value++;

 	if(!strncmp("FontName", buf, 8)) {
 	    afm->FontName = HEAP_strdupA(PSDRV_Heap, 0, value);
 	    continue;
 	}

 	if(!strncmp("FullName", buf, 8)) {
 	    afm->FullName = HEAP_strdupA(PSDRV_Heap, 0, value);
 	    continue;
 	}

 	if(!strncmp("FamilyName", buf, 10)) {
 	    afm->FamilyName = HEAP_strdupA(PSDRV_Heap, 0, value);
 	    continue;
 	}

 	if(!strncmp("Weight", buf, 6)) {
 	    if(!strncmp("Roman", value, 5) || !strncmp("Medium", value, 6)
 	       || !strncmp("Book", value, 4))
 	        afm->Weight = FW_NORMAL;
 	    else if(!strncmp("Demi", value, 4))
 	        afm->Weight = FW_DEMIBOLD;
 	    else if(!strncmp("Bold", value, 4))
 	        afm->Weight = FW_BOLD;
 	    else if(!strncmp("Light", value, 5))
 	        afm->Weight = FW_LIGHT;
 	    else {
   	        FIXME(psdrv, "Unkown AFM Weight '%s'\n", value);
 	        afm->Weight = FW_NORMAL;
 	    }
 	    continue;
 	}

 	if(!strncmp("ItalicAngle", buf, 11)) {
 	    sscanf(value, "%f", &(afm->ItalicAngle));
 	    continue;
 	}

 	if(!strncmp("IsFixedPitch", buf, 12)) {
 	    if(!strncasecmp("false", value, 5))
 	        afm->IsFixedPitch = FALSE;
 	    else
 	        afm->IsFixedPitch = TRUE;
 	    continue;
 	}

 	if(!strncmp("FontBBox", buf, 8)) {
 	    sscanf(value, "%f %f %f %f", &(afm->FontBBox.llx),
 		   &(afm->FontBBox.lly), &(afm->FontBBox.urx),
 		   &(afm->FontBBox.ury) );
 	    continue;
 	}

 	if(!strncmp("UnderlinePosition", buf, 17)) {
 	    sscanf(value, "%f", &(afm->UnderlinePosition) );
 	    continue;
 	}

 	if(!strncmp("UnderlineThickness", buf, 18)) {
 	    sscanf(value, "%f", &(afm->UnderlineThickness) );
 	    continue;
 	}

 	if(!strncmp("CapHeight", buf, 9)) {
 	    sscanf(value, "%f", &(afm->CapHeight) );
 	    continue;
 	}

 	if(!strncmp("XHeight", buf, 7)) {
 	    sscanf(value, "%f", &(afm->XHeight) );
 	    continue;
 	}

 	if(!strncmp("Ascender", buf, 8)) {
 	    sscanf(value, "%f", &(afm->Ascender) );
 	    continue;
 	}

 	if(!strncmp("Descender", buf, 9)) {
 	    sscanf(value, "%f", &(afm->Descender) );
 	    continue;
 	}

 	if(!strncmp("StartCharMetrics", buf, 16)) {
 	    sscanf(value, "%d", &(afm->NumofMetrics) );
 	    PSDRV_AFMGetCharMetrics(afm, fp);
 	    continue;
 	}


     }
     fclose(fp);

     if(afm->Ascender == 0.0)
         afm->Ascender = afm->FontBBox.ury;
     if(afm->Descender == 0.0)
         afm->Descender = afm->FontBBox.lly;
     if(afm->FullAscender == 0.0)
         afm->FullAscender = afm->Ascender;

     return afm;
 }

 /***********************************************************
  *
  *	PSDRV_FreeAFMList
  *
  * Frees the family and afmlistentry structures in list head
  */
 void PSDRV_FreeAFMList( FONTFAMILY *head )
 {
     AFMLISTENTRY *afmle, *nexta;
     FONTFAMILY *family, *nextf;

     for(nextf = family = head; nextf; family = nextf) {
         for(nexta = afmle = family->afmlist; nexta; afmle = nexta) {
 	    nexta = afmle->next;
 	    HeapFree( PSDRV_Heap, 0, afmle );
 	}
         nextf = family->next;
 	HeapFree( PSDRV_Heap, 0, family );
     }
     return;
 }


 /***********************************************************
  *
  *	PSDRV_FindAFMinList
  * Returns ptr to an AFM if name (which is a PS font name) exists in list
  * headed by head.
  */
 AFM *PSDRV_FindAFMinList(FONTFAMILY *head, char *name)
 {
     FONTFAMILY *family;
     AFMLISTENTRY *afmle;

     for(family = head; family; family = family->next) {
         for(afmle = family->afmlist; afmle; afmle = afmle->next) {
 	    if(!strcmp(afmle->afm->FontName, name))
 	        return afmle->afm;
 	}
     }
     return NULL;
 }

 /***********************************************************
  *
  *	PSDRV_AddAFMtoList
  *
  * Adds an afm to the list whose head is pointed to by head. Creates new
  * family node if necessary and always creates a new AFMLISTENTRY.
  */
 void PSDRV_AddAFMtoList(FONTFAMILY **head, AFM *afm)
 {
     FONTFAMILY *family = *head;
     FONTFAMILY **insert = head;
     AFMLISTENTRY *tmpafmle, *newafmle;

     newafmle = HeapAlloc(PSDRV_Heap, HEAP_ZERO_MEMORY,
 			   sizeof(*newafmle));
     newafmle->afm = afm;

     while(family) {
         if(!strcmp(family->FamilyName, afm->FamilyName))
 	    break;
 	insert = &(family->next);
 	family = family->next;
     }

     if(!family) {
         family = HeapAlloc(PSDRV_Heap, HEAP_ZERO_MEMORY,
 			   sizeof(*family));
 	*insert = family;
 	family->FamilyName = HEAP_strdupA(PSDRV_Heap, 0,
 					  afm->FamilyName);
 	family->afmlist = newafmle;
 	return;
     }

     tmpafmle = family->afmlist;
     while(tmpafmle->next)
         tmpafmle = tmpafmle->next;

     tmpafmle->next = newafmle;

     return;
 }

 /***********************************************************
  *
  *	PSDRV_afmfilesCallback
  *
  * Callback for PROFILE_EnumerateWineIniSection
  */
 static void PSDRV_afmfilesCallback(char const *key, char const *value,
 void *user)
 {
     AFM *afm;

     afm = PSDRV_AFMParse(value);
     if(afm)
         PSDRV_AddAFMtoList(&PSDRV_AFMFontList, afm);
     return;
 }


 /***********************************************************
  *
  *	PSDRV_DumpFontList
  *
  */
 static void PSDRV_DumpFontList(void)
 {
     FONTFAMILY *family;
     AFMLISTENTRY *afmle;

     for(family = PSDRV_AFMFontList; family; family = family->next) {
         TRACE(psdrv, "Family '%s'\n", family->FamilyName);
 	for(afmle = family->afmlist; afmle; afmle = afmle->next) {
 	    TRACE(psdrv, "\tFontName '%s'\n", afmle->afm->FontName);
 	}
     }
     return;
 }


 /***********************************************************
  *
  *	PSDRV_GetFontMetrics
  *
  * Only exported function in this file. Parses all afm files listed in
  * [afmfiles] of wine.conf .
  */
 BOOL32 PSDRV_GetFontMetrics(void)
 {
     PROFILE_EnumerateWineIniSection( "afmfiles", PSDRV_afmfilesCallback, NULL);
     PSDRV_DumpFontList();
     return TRUE;
 }
	/*
	* Adobe Font Metric (AFM) file parsing
	* See http://www.adobe.com/supportservice/devrelations/PDFS/TN/5004.AFM_Spec.pdf
	*
	* Copyright 1998 Huw D M Davies
	*
	*/

	#include <string.h>
	#include "windows.h"
	#include "winnt.h" /* HEAP_ZERO_MEMORY */
	#include "psdrv.h"
	#include "options.h"
	#include "debug.h"
	#include "heap.h"
	#include <ctype.h>

	/* ptr to fonts for which we have afm files */
	FONTFAMILY *PSDRV_AFMFontList = NULL;


	/***********************************************************
	*
	* PSDRV_AFMGetCharMetrics
	*
	* Parses CharMetric section of AFM file.
	*
	* Actually only collects the widths of numbered chars and puts then in
	* afm->CharWidths.
	*/
	static void PSDRV_AFMGetCharMetrics(AFM afm, FILE fp)
	{
	char buf[256];
	char cp, item, *value;
	int i, charno;

	for(i = 0; i < afm->NumofMetrics; i++) {
	char *name = NULL;

	if(!fgets(buf, sizeof(buf), fp)) {
	ERR(psdrv, "Unexpected EOF\n");
	return;
	}
	cp = buf + strlen(buf);
	do {
	*cp = '\0';
	cp--;
	} while(cp > buf && isspace(*cp));

	item = strtok(buf, ";");
	if(!strncmp(item, "C ", 2)) {
	value = strchr(item, ' ');
	sscanf(value, " %d", &charno);
	} else if(!strncmp(item, "CH ", 3)) {
	value = strrchr(item, ' ');
	sscanf(value, " %x", &charno);
	} else {
	WARN(psdrv, "Don't understand '%s'\n", item);
	return;
	}

	while((item = strtok(NULL, ";"))) {
	while(isspace(*item))
	item++;
	value = strchr(item, ' ');
	if(!value) /* last char maybe a ';' but no white space after it */
	break;
	value++;

	if(!strncmp("WX ", item, 3) \|\| !strncmp("W0X ", item, 4)) {
	if(charno >= 0 && charno <= 0xff)
	sscanf(value, "%f", &(afm->CharWidths[charno]));
	}
	/* would carry on here to scan in BBox, name and ligs */

	/* Carry on to find BBox (or actually just ascent) of Aring. This
	will provide something like the lfHeight value */

	else if(!strncmp("N ", item, 2)) {
	name = value; /* may end in space */
	}

	else if(!strncmp("B ", item, 2)) {
	if(name && !strncmp("Aring", name, 5)) {
	float llx, lly, urx, ury;
	llx = lly = urx = ury = 0.0;
	sscanf(value, "%f%f%f%f", &llx, &lly, &urx, &ury);
	afm->FullAscender = ury;
	}
	}

	}
	}

	return;
	}

	/***********************************************************
	*
	* PSDRV_AFMParse
	*
	* Fills out an AFM structure and associated substructures (see psdrv.h)
	* for a given AFM file. All memory is allocated from the process heap.
	* Returns a ptr to the AFM structure or NULL on error.
	*
	* This is not complete (we don't handle kerning yet) and not efficient
	*/
	static AFM PSDRV_AFMParse(char const file)
	{
	FILE *fp;
	char buf[256];
	char *value;
	AFM *afm;
	char *cp;

	if((fp = fopen(file, "r")) == NULL) {
	MSG("Can't open AFM file '%s'. Please check wine.conf .\n", file);
	return NULL;
	}

	afm = HeapAlloc(PSDRV_Heap, HEAP_ZERO_MEMORY, sizeof(AFM));
	if(!afm) {
	fclose(fp);
	return NULL;
	}

	while(fgets(buf, sizeof(buf), fp)) {
	cp = buf + strlen(buf);
	do {
	*cp = '\0';
	cp--;
	} while(cp > buf && isspace(*cp));

	value = strchr(buf, ' ');
	if(value)
	value++;

	if(!strncmp("FontName", buf, 8)) {
	afm->FontName = HEAP_strdupA(PSDRV_Heap, 0, value);
	continue;
	}

	if(!strncmp("FullName", buf, 8)) {
	afm->FullName = HEAP_strdupA(PSDRV_Heap, 0, value);
	continue;
	}

	if(!strncmp("FamilyName", buf, 10)) {
	afm->FamilyName = HEAP_strdupA(PSDRV_Heap, 0, value);
	continue;
	}

	if(!strncmp("Weight", buf, 6)) {
	if(!strncmp("Roman", value, 5) \|\| !strncmp("Medium", value, 6)
	\|\| !strncmp("Book", value, 4))
	afm->Weight = FW_NORMAL;
	else if(!strncmp("Demi", value, 4))
	afm->Weight = FW_DEMIBOLD;
	else if(!strncmp("Bold", value, 4))
	afm->Weight = FW_BOLD;
	else if(!strncmp("Light", value, 5))
	afm->Weight = FW_LIGHT;
	else {
	FIXME(psdrv, "Unkown AFM Weight '%s'\n", value);
	afm->Weight = FW_NORMAL;
	}
	continue;
	}

	if(!strncmp("ItalicAngle", buf, 11)) {
	sscanf(value, "%f", &(afm->ItalicAngle));
	continue;
	}

	if(!strncmp("IsFixedPitch", buf, 12)) {
	if(!strncasecmp("false", value, 5))
	afm->IsFixedPitch = FALSE;
	else
	afm->IsFixedPitch = TRUE;
	continue;
	}

	if(!strncmp("FontBBox", buf, 8)) {
	sscanf(value, "%f %f %f %f", &(afm->FontBBox.llx),
	&(afm->FontBBox.lly), &(afm->FontBBox.urx),
	&(afm->FontBBox.ury) );
	continue;
	}

	if(!strncmp("UnderlinePosition", buf, 17)) {
	sscanf(value, "%f", &(afm->UnderlinePosition) );
	continue;
	}

	if(!strncmp("UnderlineThickness", buf, 18)) {
	sscanf(value, "%f", &(afm->UnderlineThickness) );
	continue;
	}

	if(!strncmp("CapHeight", buf, 9)) {
	sscanf(value, "%f", &(afm->CapHeight) );
	continue;
	}

	if(!strncmp("XHeight", buf, 7)) {
	sscanf(value, "%f", &(afm->XHeight) );
	continue;
	}

	if(!strncmp("Ascender", buf, 8)) {
	sscanf(value, "%f", &(afm->Ascender) );
	continue;
	}

	if(!strncmp("Descender", buf, 9)) {
	sscanf(value, "%f", &(afm->Descender) );
	continue;
	}

	if(!strncmp("StartCharMetrics", buf, 16)) {
	sscanf(value, "%d", &(afm->NumofMetrics) );
	PSDRV_AFMGetCharMetrics(afm, fp);
	continue;
	}




	}
	fclose(fp);

	if(afm->Ascender == 0.0)
	afm->Ascender = afm->FontBBox.ury;
	if(afm->Descender == 0.0)
	afm->Descender = afm->FontBBox.lly;
	if(afm->FullAscender == 0.0)
	afm->FullAscender = afm->Ascender;

	return afm;
	}

	/***********************************************************
	*
	* PSDRV_FreeAFMList
	*
	* Frees the family and afmlistentry structures in list head
	*/
	void PSDRV_FreeAFMList( FONTFAMILY *head )
	{
	AFMLISTENTRY afmle, nexta;
	FONTFAMILY family, nextf;

	for(nextf = family = head; nextf; family = nextf) {
	for(nexta = afmle = family->afmlist; nexta; afmle = nexta) {
	nexta = afmle->next;
	HeapFree( PSDRV_Heap, 0, afmle );
	}
	nextf = family->next;
	HeapFree( PSDRV_Heap, 0, family );
	}
	return;
	}


	/***********************************************************
	*
	* PSDRV_FindAFMinList
	* Returns ptr to an AFM if name (which is a PS font name) exists in list
	* headed by head.
	*/
	AFM PSDRV_FindAFMinList(FONTFAMILY head, char *name)
	{
	FONTFAMILY *family;
	AFMLISTENTRY *afmle;

	for(family = head; family; family = family->next) {
	for(afmle = family->afmlist; afmle; afmle = afmle->next) {
	if(!strcmp(afmle->afm->FontName, name))
	return afmle->afm;
	}
	}
	return NULL;
	}

	/***********************************************************
	*
	* PSDRV_AddAFMtoList
	*
	* Adds an afm to the list whose head is pointed to by head. Creates new
	* family node if necessary and always creates a new AFMLISTENTRY.
	*/
	void PSDRV_AddAFMtoList(FONTFAMILY *head, AFM afm)
	{
	FONTFAMILY family = head;
	FONTFAMILY **insert = head;
	AFMLISTENTRY tmpafmle, newafmle;

	newafmle = HeapAlloc(PSDRV_Heap, HEAP_ZERO_MEMORY,
	sizeof(*newafmle));
	newafmle->afm = afm;

	while(family) {
	if(!strcmp(family->FamilyName, afm->FamilyName))
	break;
	insert = &(family->next);
	family = family->next;
	}

	if(!family) {
	family = HeapAlloc(PSDRV_Heap, HEAP_ZERO_MEMORY,
	sizeof(*family));
	*insert = family;
	family->FamilyName = HEAP_strdupA(PSDRV_Heap, 0,
	afm->FamilyName);
	family->afmlist = newafmle;
	return;
	}

	tmpafmle = family->afmlist;
	while(tmpafmle->next)
	tmpafmle = tmpafmle->next;

	tmpafmle->next = newafmle;

	return;
	}

	/***********************************************************
	*
	* PSDRV_afmfilesCallback
	*
	* Callback for PROFILE_EnumerateWineIniSection
	*/
	static void PSDRV_afmfilesCallback(char const key, char const value,
	void *user)
	{
	AFM *afm;

	afm = PSDRV_AFMParse(value);
	if(afm)
	PSDRV_AddAFMtoList(&PSDRV_AFMFontList, afm);
	return;
	}


	/***********************************************************
	*
	* PSDRV_DumpFontList
	*
	*/
	static void PSDRV_DumpFontList(void)
	{
	FONTFAMILY *family;
	AFMLISTENTRY *afmle;

	for(family = PSDRV_AFMFontList; family; family = family->next) {
	TRACE(psdrv, "Family '%s'\n", family->FamilyName);
	for(afmle = family->afmlist; afmle; afmle = afmle->next) {
	TRACE(psdrv, "\tFontName '%s'\n", afmle->afm->FontName);
	}
	}
	return;
	}


	/***********************************************************
	*
	* PSDRV_GetFontMetrics
	*
	* Only exported function in this file. Parses all afm files listed in
	* [afmfiles] of wine.conf .
	*/
	BOOL32 PSDRV_GetFontMetrics(void)
	{
	PROFILE_EnumerateWineIniSection( "afmfiles", PSDRV_afmfilesCallback, NULL);
	PSDRV_DumpFontList();
	return TRUE;
	}