sync code with last improvements from OpenBSD
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88965415ff
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26235 changed files with 29195616 additions and 0 deletions
370
lib/libX11/modules/om/generic/omText.c
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370
lib/libX11/modules/om/generic/omText.c
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/*
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* Copyright 1992, 1993 by TOSHIBA Corp.
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*
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* Permission to use, copy, modify, and distribute this software and its
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* documentation for any purpose and without fee is hereby granted, provided
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* that the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of TOSHIBA not be used in advertising
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* or publicity pertaining to distribution of the software without specific,
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* written prior permission. TOSHIBA make no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*
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* TOSHIBA DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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* TOSHIBA BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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* ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*
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* Author: Katsuhisa Yano TOSHIBA Corp.
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* mopi@osa.ilab.toshiba.co.jp
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*/
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/*
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* Copyright 1995 by FUJITSU LIMITED
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* This is source code modified by FUJITSU LIMITED under the Joint
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* Development Agreement for the CDE/Motif PST.
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*/
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/*
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* Modifiers: Jeff Walls, Paul Anderson (HEWLETT-PACKARD)
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "Xlibint.h"
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#include "XomGeneric.h"
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#include <stdio.h>
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/* For VW/UDC */
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static int
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is_rotate(
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XOC oc,
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XFontStruct *font)
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{
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XOCGenericPart *gen = XOC_GENERIC(oc);
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FontSet font_set;
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VRotate vrotate;
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int font_set_count;
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int vrotate_num;
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font_set = gen->font_set;
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font_set_count = gen->font_set_num;
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for( ; font_set_count-- ; font_set++) {
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if((font_set->vrotate_num > 0) && (font_set->vrotate)) {
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vrotate = font_set->vrotate;
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vrotate_num = font_set->vrotate_num;
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for( ; vrotate_num-- ; vrotate++)
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if(vrotate->font == font)
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return True;
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}
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}
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return False;
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}
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static int
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is_codemap(
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XOC oc,
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XFontStruct *font)
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{
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XOCGenericPart *gen = XOC_GENERIC(oc);
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FontSet font_set;
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FontData vmap;
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int font_set_count;
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int vmap_num;
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font_set = gen->font_set;
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font_set_count = gen->font_set_num;
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for( ; font_set_count-- ; font_set++) {
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if(font_set->vmap_num > 0) {
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vmap = font_set->vmap;
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vmap_num = font_set->vmap_num;
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for( ; vmap_num-- ; vmap++)
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if(vmap->font == font)
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return True;
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}
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}
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return False;
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}
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static int
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draw_vertical(
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Display *dpy,
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Drawable d,
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XOC oc,
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GC gc,
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XFontStruct *font,
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Bool is_xchar2b,
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int x, int y,
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XPointer text,
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int length)
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{
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XChar2b *buf2b;
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char *buf;
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int wx = 0, wy = 0;
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int direction = 0;
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int font_ascent_return = 0, font_descent_return = 0;
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int i;
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XCharStruct overall;
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wy = y;
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if (is_xchar2b) {
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for(i = 0, buf2b = (XChar2b *) text ; i < length ; i++, buf2b++) {
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if(is_rotate(oc, font) == True) {
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XTextExtents16(font, buf2b, 1,
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&direction, &font_ascent_return,
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&font_descent_return, &overall);
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wx = x - (int)((overall.rbearing - overall.lbearing) >> 1) -
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(int) overall.lbearing;
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wy += overall.ascent;
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XDrawString16(dpy, d, gc, wx, wy, buf2b, 1);
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wy += overall.descent;
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} else {
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wx = x - (int)((font->max_bounds.rbearing -
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font->min_bounds.lbearing) >> 1) -
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(int) font->min_bounds.lbearing;
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wy += font->max_bounds.ascent;
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XDrawString16(dpy, d, gc, wx, wy, buf2b, 1);
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wy += font->max_bounds.descent;
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}
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}
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} else {
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for(i = 0, buf = (char *)text ; i < length && *buf ; i++, buf++) {
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if(is_rotate(oc, font) == True) {
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XTextExtents(font, buf, 1,
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&direction, &font_ascent_return,
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&font_descent_return, &overall);
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wx = x - (int)((overall.rbearing - overall.lbearing) >> 1) -
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(int) overall.lbearing;
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wy += overall.ascent;
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XDrawString(dpy, d, gc, wx, wy, buf, 1);
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wy += overall.descent;
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} else {
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wx = x - (int)((font->max_bounds.rbearing -
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font->min_bounds.lbearing) >> 1) -
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(int) font->min_bounds.lbearing;
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wy += font->max_bounds.ascent;
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XDrawString(dpy, d, gc, wx, wy, buf, 1);
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wy += font->max_bounds.descent;
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}
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}
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}
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return wy;
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}
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#define VMAP 0
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#define VROTATE 1
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#define FONTSCOPE 2
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static int
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DrawStringWithFontSet(
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Display *dpy,
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Drawable d,
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XOC oc,
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FontSet fs,
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GC gc,
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int x, int y,
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XPointer text,
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int length)
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{
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XFontStruct *font;
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Bool is_xchar2b;
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unsigned char *ptr;
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int ptr_len, char_len = 0;
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FontData fd;
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int ret = 0;
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ptr = (unsigned char *)text;
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is_xchar2b = fs->is_xchar2b;
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while (length > 0) {
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fd = _XomGetFontDataFromFontSet(fs,
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ptr,length,&ptr_len,is_xchar2b,FONTSCOPE);
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if(ptr_len <= 0)
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break;
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/* First, see if the "Best Match" font for the FontSet was set.
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* If it was, use that font. If it was not set, then use the
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* font defined by font_set->font_data[0] (which is what
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* _XomGetFontDataFromFontSet() always seems to return for
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* non-VW text). Note that given the new algorithm in
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* parse_fontname() and parse_fontdata(), fs->font will
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* *always* contain good data. We should probably remove
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* the check for "fd->font", but we won't :-) -- jjw/pma (HP)
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*/
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if((font = fs->font) == (XFontStruct *) NULL){
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if(fd == (FontData) NULL ||
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(font = fd->font) == (XFontStruct *) NULL)
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break;
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}
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switch(oc->core.orientation) {
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case XOMOrientation_LTR_TTB:
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case XOMOrientation_RTL_TTB:
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XSetFont(dpy, gc, font->fid);
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if (is_xchar2b) {
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char_len = ptr_len / sizeof(XChar2b);
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XDrawString16(dpy, d, gc, x, y, (XChar2b *)ptr, char_len);
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x += XTextWidth16(font, (XChar2b *)ptr, char_len);
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} else {
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char_len = ptr_len;
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XDrawString(dpy, d, gc, x, y, (char *)ptr, char_len);
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x += XTextWidth(font, (char *)ptr, char_len);
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}
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break;
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case XOMOrientation_TTB_RTL:
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case XOMOrientation_TTB_LTR:
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if(fs->font == font) {
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fd = _XomGetFontDataFromFontSet(fs,
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ptr,length,&ptr_len,is_xchar2b,VMAP);
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if(ptr_len <= 0)
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break;
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if(fd == (FontData) NULL ||
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(font = fd->font) == (XFontStruct *) NULL)
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break;
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if(is_codemap(oc, fd->font) == False) {
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fd = _XomGetFontDataFromFontSet(fs,
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ptr,length,&ptr_len,is_xchar2b,VROTATE);
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if(ptr_len <= 0)
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break;
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if(fd == (FontData) NULL ||
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(font = fd->font) == (XFontStruct *) NULL)
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break;
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}
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}
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if(is_xchar2b)
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char_len = ptr_len / sizeof(XChar2b);
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else
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char_len = ptr_len;
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XSetFont(dpy, gc, font->fid);
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y = draw_vertical(dpy, d, oc, gc, font, is_xchar2b, x, y,
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(char *)ptr, char_len);
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break;
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case XOMOrientation_Context:
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/* never used? */
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break;
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}
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if(char_len <= 0)
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break;
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length -= char_len;
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ptr += ptr_len;
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}
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switch(oc->core.orientation) {
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case XOMOrientation_LTR_TTB:
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case XOMOrientation_RTL_TTB:
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ret = x;
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break;
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case XOMOrientation_TTB_RTL:
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case XOMOrientation_TTB_LTR:
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ret = y;
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break;
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case XOMOrientation_Context:
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/* not used? */
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break;
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}
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return ret;
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}
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/* For VW/UDC */
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int
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_XomGenericDrawString(
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Display *dpy,
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Drawable d,
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XOC oc,
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GC gc,
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int x, int y,
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XOMTextType type,
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XPointer text,
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int length)
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{
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XlcConv conv;
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XFontStruct *font;
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Bool is_xchar2b;
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/* VW/UDC */
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XPointer args[3];
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FontSet fs;
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/* VW/UDC */
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XChar2b xchar2b_buf[BUFSIZ], *buf;
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int start_x = x;
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int start_y = y;
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int left = 0, buf_len = 0;
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int next = 0;
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conv = _XomInitConverter(oc, type);
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if (conv == NULL)
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return -1;
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args[0] = (XPointer) &font;
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args[1] = (XPointer) &is_xchar2b;
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args[2] = (XPointer) &fs;
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while (length > 0) {
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buf = xchar2b_buf;
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left = buf_len = BUFSIZ;
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if (_XomConvert(oc, conv, (XPointer *) &text, &length,
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(XPointer *) &buf, &left, args, 3) < 0)
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break;
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buf_len -= left;
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/* For VW/UDC */
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next = DrawStringWithFontSet(dpy, d, oc, fs, gc, x, y,
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(XPointer)xchar2b_buf, buf_len);
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switch(oc->core.orientation) {
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case XOMOrientation_LTR_TTB:
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case XOMOrientation_RTL_TTB:
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x = next;
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break;
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case XOMOrientation_TTB_RTL:
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case XOMOrientation_TTB_LTR:
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y = next;
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break;
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case XOMOrientation_Context:
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/* not used */
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break;
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}
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/* For VW/UDC */
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}
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x -= start_x;
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y -= start_y;
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return x;
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}
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int
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_XmbGenericDrawString(Display *dpy, Drawable d, XOC oc, GC gc, int x, int y,
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_Xconst char *text, int length)
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{
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return _XomGenericDrawString(dpy, d, oc, gc, x, y, XOMMultiByte,
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(XPointer) text, length);
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}
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int
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_XwcGenericDrawString(Display *dpy, Drawable d, XOC oc, GC gc, int x, int y,
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_Xconst wchar_t *text, int length)
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{
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return _XomGenericDrawString(dpy, d, oc, gc, x, y, XOMWideChar,
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(XPointer) text, length);
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}
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int
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_Xutf8GenericDrawString(Display *dpy, Drawable d, XOC oc, GC gc, int x, int y,
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_Xconst char *text, int length)
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{
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return _XomGenericDrawString(dpy, d, oc, gc, x, y, XOMUtf8String,
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(XPointer) text, length);
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}
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