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x11
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Xom_XChar.c
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C/C++ Source or Header
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1999-11-02
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/* $XConsortium: omXChar.c /main/6 1996/12/05 10:41:05 swick $ */
/*
* Copyright 1992, 1993 by TOSHIBA Corp.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted, 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 name of TOSHIBA not be used in advertising
* or publicity pertaining to distribution of the software without specific,
* written prior permission. TOSHIBA make no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* TOSHIBA DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
* TOSHIBA 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: Katsuhisa Yano TOSHIBA Corp.
* mopi@osa.ilab.toshiba.co.jp
*/
/*
* Copyright 1995 by FUJITSU LIMITED
* This is source code modified by FUJITSU LIMITED under the Joint
* Development Agreement for the CDE/Motif PST.
*
* Modifier: Takanori Tateno FUJITSU LIMITED
*
*/
#include "Xlib_private.h"
#include "XlcPublic.h"
#include "XomGeneric.h"
#include <stdio.h>
/* for VW/UDC start */
static Bool
ismatch_scopes(fontdata,value, is_shift)
FontData fontdata;
unsigned long *value;
Bool is_shift;
{
DBUG_ENTER("ismatch_scopes")
register int side, scopes_num = fontdata->scopes_num;
FontScope scopes = fontdata->scopes;
if (!scopes_num)
DBUG_RETURN(False);
if(fontdata->font == NULL)
DBUG_RETURN(False);
side = fontdata->side;
for(;scopes_num--;scopes++)
if ((scopes->start <= (*value & 0x7f7f)) &&
((scopes->end) >= (*value & 0x7f7f))){
if(is_shift == True) {
if(scopes->shift){
if(scopes->shift_direction == '+'){
*value += scopes->shift ;
} else if( scopes->shift_direction == '-'){
*value -= scopes->shift ;
}
}
}
DBUG_RETURN(True);
}
DBUG_RETURN(False);
}
static int
check_vertical_fonttype(name)
char *name;
{
DBUG_ENTER("check_vertical_fonttype")
char *ptr;
int type = 0;
if(name == (char *)NULL || (int) strlen(name) <= 0)
DBUG_RETURN(False);
/* Obtains the pointer of CHARSET_ENCODING_FIELD. */
if((ptr = strchr(name, '-')) == (char *) NULL)
DBUG_RETURN(False);
ptr++;
/* Obtains the pointer of vertical_map font type. */
if((ptr = strchr(ptr, '.')) == (char *) NULL)
DBUG_RETURN(False);
ptr++;
switch(*ptr) {
case '1':
type = 1; break;
case '2':
type = 2; break;
case '3':
type = 3; break;
}
DBUG_RETURN(type);
}
/*
*/
#define VMAP 0
#define VROTATE 1
#define FONTSCOPE 2
FontData
_XomGetFontDataFromFontSet(fs,str,len,len_ret,is2b,type)
FontSet fs;
unsigned char *str;
int len;
int *len_ret;
int is2b;
int type; /* VMAP , VROTATE , else */
{
DBUG_ENTER("_XomGetFontDataFromFontSet")
unsigned long value;
int num,i,hit,csize;
FontData fontdata;
unsigned char *c;
int vfont_type;
c = str;
hit = -1;
if(type == VMAP){
fontdata = fs->vmap;
num = fs->vmap_num;
} else if(type == VROTATE){
fontdata = (FontData)fs->vrotate;
num = fs->vrotate_num;
} else {
if(fs->font_data_count <= 0 || fs->font_data == (FontData)NULL) {
fontdata = fs->substitute;
num = fs->substitute_num;
}else {
fontdata = fs->font_data;
num = fs->font_data_count;
}
/* CDExc20229 fix */
if(fontdata == NULL || num == 0){
DBUG_RETURN(NULL);
}
}
if(is2b){
csize = 2;
} else {
csize = 1;
}
for(;len;len--){
if(is2b){
value = (((unsigned long)*c) << 8)|(unsigned long)*(c + 1);
} else {
value = (unsigned long)*c;
}
for (i=0;i<num;i++) {
if(type == VROTATE) {
if(fontdata[i].font) {
/* If the num_cr equal zero, all character is rotated. */
if(fontdata[i].scopes_num == 0) {
break;
} else {
/* The vertical rotate glyph is not have code shift. */
if (ismatch_scopes(&(fontdata[i]),&value,False)) {
break;
}
}
}
} else if(type == VMAP) {
if(fontdata[i].font) {
vfont_type = check_vertical_fonttype(fontdata[i].name);
if(vfont_type == 0 || vfont_type == 1) {
break;
} else if(vfont_type == 2 || vfont_type == 3) {
if(fontdata[i].scopes_num <= 0)
break;
if (ismatch_scopes(&(fontdata[i]),&value,True)) {
break;
}
}
}
} else { /* FONTSCOPE */
if(fontdata[i].font) {
if(fontdata[i].scopes_num <= 0)
break;
if (ismatch_scopes(&(fontdata[i]),&value,True)){
break;
}
}
}
}
if((hit != -1) && (i != hit)){
break;
}
if(i == num){
if( type == VROTATE || type == VMAP){
/* Change 1996.01.23 start */
if(fs->font_data_count <= 0 ||
fs->font_data == (FontData)NULL)
fontdata = fs->substitute;
else
fontdata = fs->font_data;
/* Change 1996.01.23 end */
}
hit = 0;
c += csize;
break;
}
if( hit == -1 ) hit = i;
if(is2b){
*c = (unsigned char)(value >> 8);
*(c + 1) = (unsigned char)(value);
} else {
*c = (unsigned char)value;
}
c += csize;
}
*len_ret = (c - str);
DBUG_RETURN(&(fontdata[hit]));
}
/* for VW/UDC end */
static FontSet
_XomGetFontSetFromCharSet(oc, charset)
XOC oc;
XlcCharSet charset;
{
DBUG_ENTER("_XomGetFontSetFromCharSet")
register FontSet font_set = XOC_GENERIC(oc)->font_set;
register int num = XOC_GENERIC(oc)->font_set_num;
XlcCharSet *charset_list;
int charset_count;
for ( ; num-- > 0; font_set++) {
charset_count = font_set->charset_count;
charset_list = font_set->charset_list;
for ( ; charset_count-- > 0; charset_list++)
if (*charset_list == charset)
DBUG_RETURN(font_set);
}
DBUG_RETURN((FontSet) NULL);
}
#ifdef MUSTCOPY
static void
cs_to_xchar2b(from, to, length)
register char *from;
register XChar2b *to;
register length;
{
DBUG_ENTER("cs_to_xchar2b")
while (length-- > 0) {
to->byte1 = *from++;
to->byte2 = *from++;
to++;
}
DBUG_VOID_RETURN;
}
static void
cs_to_xchar2b_gl(from, to, length)
register char *from;
register XChar2b *to;
register length;
{
DBUG_ENTER("cs_to_xchar2b_gl")
while (length-- > 0) {
to->byte1 = *from++ & 0x7f;
to->byte2 = *from++ & 0x7f;
to++;
}
DBUG_VOID_RETURN;
}
static void
cs_to_xchar2b_gr(from, to, length)
register char *from;
register XChar2b *to;
register length;
{
DBUG_ENTER("cs_to_xchar2b_gr")
while (length-- > 0) {
to->byte1 = *from++ | 0x80;
to->byte2 = *from++ | 0x80;
to++;
}
DBUG_VOID_RETURN;
}
#endif
static void
shift_to_gl(text, length)
register char *text;
register int length;
{
DBUG_ENTER("shift_to_gl")
while (length-- > 0)
*text++ &= 0x7f;
DBUG_VOID_RETURN;
}
static void
shift_to_gr(text, length)
register char *text;
register int length;
{
DBUG_ENTER("shift_to_gr")
while (length-- > 0)
*text++ |= 0x80;
DBUG_VOID_RETURN;
}
static Bool
load_font(oc, font_set)
XOC oc;
FontSet font_set;
{
DBUG_ENTER("load_font")
font_set->font = XLoadQueryFont(oc->core.om->core.display,
oc->core.font_info.font_name_list[font_set->id]);
if (font_set->font == NULL)
DBUG_RETURN(False);
oc->core.font_info.font_struct_list[font_set->id] = font_set->font;
XFreeFontInfo(NULL, font_set->info, 1);
font_set->info = NULL;
if (font_set->font->min_byte1 || font_set->font->max_byte1)
font_set->is_xchar2b = True;
else
font_set->is_xchar2b = False;
DBUG_RETURN(True);
}
int
_XomConvert(oc, conv, from, from_left, to, to_left, args, num_args)
XOC oc;
XlcConv conv;
XPointer *from;
int *from_left;
XPointer *to;
int *to_left;
XPointer *args;
int num_args;
{
DBUG_ENTER("_XomConvert")
XPointer cs, lc_args[1];
XlcCharSet charset;
int length, cs_left, ret;
FontSet font_set;
#ifdef MUSTCOPY
XChar2b *xchar2b;
char *buf, buf_local[BUFSIZ];
#endif
cs = *to;
cs_left = *to_left;
lc_args[0] = (XPointer) &charset;
ret = _XlcConvert(conv, from, from_left, &cs, &cs_left, lc_args, 1);
if (ret < 0)
DBUG_RETURN(-1);
font_set = _XomGetFontSetFromCharSet(oc, charset);
if (font_set == NULL)
DBUG_RETURN(-1);
if (font_set->font == NULL && load_font(oc, font_set) == False)
DBUG_RETURN(-1);
length = *to_left - cs_left;
#ifdef MUSTCOPY
if (font_set->is_xchar2b) {
buf = (length > BUFSIZ) ? Xmalloc(length) : buf_local;
if (buf == NULL)
DBUG_RETURN(-1);
memcpy(buf, (char *) *to, length);
xchar2b = (XChar2b *) *to;
length >>= 1;
if (font_set->side == charset->side)
cs_to_xchar2b(buf, xchar2b, length);
else if (font_set->side == XlcGL)
cs_to_xchar2b_gl(buf, xchar2b, length);
else if (font_set->side == XlcGR)
cs_to_xchar2b_gr(buf, xchar2b, length);
else
cs_to_xchar2b(buf, xchar2b, length);
if (buf != buf_local)
Xfree(buf);
*to = (XPointer) (xchar2b + length);
*to_left -= length;
} else
#endif
{
if (font_set->side != charset->side) {
if (font_set->side == XlcGL)
shift_to_gl(*to, length);
else if (font_set->side == XlcGR)
shift_to_gr(*to, length);
}
if (font_set->is_xchar2b)
length >>= 1;
*to = cs;
*to_left -= length;
}
*((XFontStruct **) args[0]) = font_set->font;
*((Bool *) args[1]) = font_set->is_xchar2b;
if(num_args >= 3){
*((FontSet *) args[2]) = font_set;
}
DBUG_RETURN(ret);
}
XlcConv
_XomInitConverter(oc, type)
XOC oc;
XOMTextType type;
{
DBUG_ENTER("_XomInitConverter")
XOCGenericPart *gen = XOC_GENERIC(oc);
XlcConv conv;
char *conv_type;
XLCd lcd;
if (type == XOMWideChar) {
conv = gen->wcs_to_cs;
conv_type = XlcNWideChar;
} else {
conv = gen->mbs_to_cs;
conv_type = XlcNMultiByte;
}
if (conv) {
_XlcResetConverter(conv);
DBUG_RETURN(conv);
}
lcd = oc->core.om->core.lcd;
conv = _XlcOpenConverter(lcd, conv_type, lcd, XlcNCharSet);
if (conv == (XlcConv) NULL)
DBUG_RETURN((XlcConv) NULL);
if (type == XOMWideChar)
gen->wcs_to_cs = conv;
else
gen->mbs_to_cs = conv;
DBUG_RETURN(conv);
}