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/*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "Xlibint.h"
#include "XomGeneric.h"
#include <stdio.h>
/* For VW/UDC start */
#define VMAP 0
#define VROTATE 1
#define FONTSCOPE 2
static int
is_rotate(
XOC oc,
XFontStruct *font)
{
XOCGenericPart *gen = XOC_GENERIC(oc);
FontSet font_set;
VRotate vrotate;
int font_set_count;
int vrotate_num;
font_set = gen->font_set;
font_set_count = gen->font_set_num;
for( ; font_set_count-- ; font_set++) {
if((font_set->vrotate_num > 0) && (font_set->vrotate != NULL)) {
vrotate = font_set->vrotate;
vrotate_num = font_set->vrotate_num;
for( ; vrotate_num-- ; vrotate++)
if(vrotate->font == font)
return True;
}
}
return False;
}
static int
is_codemap(
XOC oc,
XFontStruct *font)
{
XOCGenericPart *gen = XOC_GENERIC(oc);
FontSet font_set;
FontData vmap;
int font_set_count;
int vmap_num;
font_set = gen->font_set;
font_set_count = gen->font_set_num;
for( ; font_set_count-- ; font_set++) {
if(font_set->vmap_num > 0) {
vmap = font_set->vmap;
vmap_num = font_set->vmap_num;
for( ; vmap_num-- ; vmap++)
if(vmap->font == font)
return True;
}
}
return False;
}
static int
escapement_vertical(
XOC oc,
XFontStruct *font,
Bool is_xchar2b,
XPointer text,
int length)
{
XChar2b *buf2b;
char *buf;
int escapement = 0, i;
if(is_xchar2b) {
for(i = 0, buf2b = (XChar2b *) text ; i < length ; i++, buf2b++) {
if(is_rotate(oc, font) == True) {
escapement += _XTextHeight16(font, buf2b, 1);
} else {
escapement += (int) (font->max_bounds.ascent +
font->max_bounds.descent);
}
}
} else {
for(i = 0, buf = (char *)text ; i < length && *buf ; i++, buf++) {
if(is_rotate(oc, font) == True) {
escapement += _XTextHeight(font, buf, 1);
} else {
escapement += (int) (font->max_bounds.ascent +
font->max_bounds.descent);
}
}
}
return escapement;
}
static int
TextWidthWithFontSet(
FontSet font_set,
XOC oc,
XPointer text,
int length)
{
FontData fd;
XFontStruct *font;
unsigned char *ptr = (unsigned char *)text;
Bool is_xchar2b;
int ptr_len = length;
int escapement = 0, char_len = 0;
if(font_set == (FontSet) NULL)
return escapement;
is_xchar2b = font_set->is_xchar2b;
while(length > 0) {
fd = _XomGetFontDataFromFontSet(font_set, ptr, length, &ptr_len,
is_xchar2b, FONTSCOPE);
if(ptr_len <= 0)
break;
/*
* First, see if the "Best Match" font for the FontSet was set.
* If it was, use that font. If it was not set, then use the
* font defined by font_set->font_data[0] (which is what
* _XomGetFontDataFromFontSet() always seems to return for
* non-VW text). Note that given the new algorithm in
* parse_fontname() and parse_fontdata(), fs->font will
* *always* contain good data. We should probably remove
* the check for "fd->font", but we won't :-) -- jjw/pma (HP)
*
* Above comment and way this is done propagated from omText.c
* Note that fd->font is junk so using the result of the
* above call /needs/ to be ignored.
*
* Owen Taylor <otaylor@redhat.com> 12 Jul 2000
*
*/
if(fd == (FontData) NULL ||
(font = font_set->font) == (XFontStruct *) NULL) {
if((font = fd->font) == (XFontStruct *) NULL)
break;
}
switch(oc->core.orientation) {
case XOMOrientation_LTR_TTB:
case XOMOrientation_RTL_TTB:
if (is_xchar2b) {
char_len = ptr_len / sizeof(XChar2b);
escapement += XTextWidth16(font, (XChar2b *)ptr, char_len);
} else {
char_len = ptr_len;
escapement += XTextWidth(font, (char *)ptr, char_len);
}
break;
case XOMOrientation_TTB_LTR:
case XOMOrientation_TTB_RTL:
if(font_set->font == font) {
fd = _XomGetFontDataFromFontSet(font_set, ptr, length, &ptr_len,
is_xchar2b, VMAP);
if(ptr_len <= 0)
break;
if(fd == (FontData) NULL ||
(font = fd->font) == (XFontStruct *) NULL)
break;
if(is_codemap(oc, fd->font) == False) {
fd = _XomGetFontDataFromFontSet(font_set, ptr, length,
&ptr_len, is_xchar2b,
VROTATE);
if(ptr_len <= 0)
break;
if(fd == (FontData) NULL ||
(font = fd->font) == (XFontStruct *) NULL)
break;
}
}
if(is_xchar2b)
char_len = ptr_len / sizeof(XChar2b);
else
char_len = ptr_len;
escapement += escapement_vertical(oc, font, is_xchar2b,
(XPointer) ptr, char_len);
break;
case XOMOrientation_Context:
/* not used? */
break;
}
if(char_len <= 0)
break;
length -= char_len;
ptr += ptr_len;
}
return escapement;
}
/* For VW/UDC end */
static int
_XomGenericTextEscapement(
XOC oc,
XOMTextType type,
XPointer text,
int length)
{
XlcConv conv;
XFontStruct *font;
Bool is_xchar2b;
/* VW/UDC */
XPointer args[3];
FontSet font_set;
/* VW/UDC */
XChar2b xchar2b_buf[BUFSIZ], *buf;
int escapement = 0;
int buf_len = 0, left = 0;
conv = _XomInitConverter(oc, type);
if (conv == NULL)
return escapement;
args[0] = (XPointer) &font;
args[1] = (XPointer) &is_xchar2b;
args[2] = (XPointer) &font_set;
while (length > 0) {
buf = xchar2b_buf;
left = buf_len = BUFSIZ;
if (_XomConvert(oc, conv, (XPointer *) &text, &length,
(XPointer *) &buf, &left, args, 3) < 0)
break;
buf_len -= left;
/* VW/UDC */
escapement += TextWidthWithFontSet(font_set, oc,
(XPointer) xchar2b_buf, buf_len);
/* VW/UDC */
}
return escapement;
}
int
_XmbGenericTextEscapement(XOC oc, _Xconst char *text, int length)
{
return _XomGenericTextEscapement(oc, XOMMultiByte, (XPointer) text, length);
}
int
_XwcGenericTextEscapement(XOC oc, _Xconst wchar_t *text, int length)
{
return _XomGenericTextEscapement(oc, XOMWideChar, (XPointer) text, length);
}
int
_Xutf8GenericTextEscapement(XOC oc, _Xconst char *text, int length)
{
return _XomGenericTextEscapement(oc, XOMUtf8String, (XPointer) text,
length);
}
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