mirror of
https://gitlab.gnome.org/GNOME/gtk.git
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afee2c67c5
Wed Jul 26 12:59:31 2000 Tim Janik <timj@gtk.org>
* *.[hc]: applied patch from Andreas Persenius <ndap@swipnet.se> that
updates the license headers to the GNU Lesser General Public License,
as well as updating the copyright year to 2000.
389 lines
6.8 KiB
C
389 lines
6.8 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include <config.h>
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#include <stdlib.h>
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#include <string.h>
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#include <locale.h>
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#include "gdkim.h"
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#include "gdkpixmap.h"
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#include "gdkinternals.h"
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#include "gdki18n.h"
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#include "gdkwin32.h"
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/*
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*--------------------------------------------------------------
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* gdk_set_locale
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*
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* Arguments:
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*
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* Results:
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*
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* Side effects:
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*
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*--------------------------------------------------------------
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*/
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gchar*
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gdk_set_locale (void)
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{
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if (!setlocale (LC_ALL, ""))
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g_warning ("locale not supported by C library");
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return g_win32_getlocale ();
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}
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void
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gdk_im_begin (GdkIC *ic, GdkWindow* window)
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{
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}
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void
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gdk_im_end (void)
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{
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}
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GdkIMStyle
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gdk_im_decide_style (GdkIMStyle supported_style)
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{
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return GDK_IM_PREEDIT_NONE | GDK_IM_STATUS_NONE;
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}
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GdkIMStyle
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gdk_im_set_best_style (GdkIMStyle style)
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{
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return GDK_IM_PREEDIT_NONE | GDK_IM_STATUS_NONE;
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}
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gint
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gdk_im_ready (void)
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{
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return FALSE;
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}
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GdkIC *
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gdk_ic_new (GdkICAttr *attr, GdkICAttributesType mask)
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{
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return NULL;
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}
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void
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gdk_ic_destroy (GdkIC *ic)
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{
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}
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GdkIMStyle
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gdk_ic_get_style (GdkIC *ic)
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{
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return GDK_IM_PREEDIT_NONE | GDK_IM_STATUS_NONE;
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}
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void
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gdk_ic_set_values (GdkIC *ic, ...)
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{
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}
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void
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gdk_ic_get_values (GdkIC *ic, ...)
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{
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}
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GdkICAttributesType
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gdk_ic_set_attr (GdkIC *ic, GdkICAttr *attr, GdkICAttributesType mask)
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{
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return 0;
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}
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GdkICAttributesType
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gdk_ic_get_attr (GdkIC *ic, GdkICAttr *attr, GdkICAttributesType mask)
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{
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return 0;
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}
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GdkEventMask
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gdk_ic_get_events (GdkIC *ic)
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{
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return 0;
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}
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/*
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* gdk_wcstombs
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*
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* Returns a multi-byte string converted from the specified array
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* of wide characters. The string is newly allocated. The array of
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* wide characters must be null-terminated. If the conversion is
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* failed, it returns NULL.
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*
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* On Win32, we always use UTF-8.
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*/
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gchar *
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gdk_wcstombs (const GdkWChar *src)
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{
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gint len;
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const GdkWChar *wcp;
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guchar *mbstr, *bp;
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wcp = src;
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len = 0;
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while (*wcp)
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{
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const GdkWChar c = *wcp++;
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if (c < 0x80)
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len += 1;
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else if (c < 0x800)
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len += 2;
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else if (c < 0x10000)
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len += 3;
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else if (c < 0x200000)
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len += 4;
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else if (c < 0x4000000)
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len += 5;
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else
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len += 6;
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}
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mbstr = g_malloc (len + 1);
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wcp = src;
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bp = mbstr;
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while (*wcp)
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{
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int first;
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int i;
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GdkWChar c = *wcp++;
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if (c < 0x80)
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{
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first = 0;
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len = 1;
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}
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else if (c < 0x800)
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{
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first = 0xc0;
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len = 2;
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}
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else if (c < 0x10000)
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{
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first = 0xe0;
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len = 3;
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}
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else if (c < 0x200000)
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{
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first = 0xf0;
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len = 4;
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}
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else if (c < 0x4000000)
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{
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first = 0xf8;
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len = 5;
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}
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else
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{
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first = 0xfc;
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len = 6;
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}
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/* Woo-hoo! */
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switch (len)
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{
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case 6: bp[5] = (c & 0x3f) | 0x80; c >>= 6; /* Fall through */
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case 5: bp[4] = (c & 0x3f) | 0x80; c >>= 6; /* Fall through */
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case 4: bp[3] = (c & 0x3f) | 0x80; c >>= 6; /* Fall through */
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case 3: bp[2] = (c & 0x3f) | 0x80; c >>= 6; /* Fall through */
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case 2: bp[1] = (c & 0x3f) | 0x80; c >>= 6; /* Fall through */
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case 1: bp[0] = c | first;
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}
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bp += len;
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}
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*bp = 0;
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return mbstr;
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}
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/*
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* gdk_mbstowcs
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*
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* Converts the specified string into GDK wide characters, and,
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* returns the number of wide characters written. The string 'src'
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* must be null-terminated. If the conversion is failed, it returns
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* -1.
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*
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* On Win32, the string is assumed to be in UTF-8. Also note that
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* GdkWChar is 32 bits, while wchar_t, and the wide characters the
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* Windows API uses, are 16 bits!
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*/
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/* First a helper function for not zero-terminated strings */
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gint
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gdk_nmbstowcs (GdkWChar *dest,
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const gchar *src,
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gint src_len,
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gint dest_max)
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{
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guchar *cp, *end;
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gint n;
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cp = (guchar *) src;
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end = cp + src_len;
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n = 0;
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while (cp != end && dest != dest + dest_max)
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{
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gint i, mask = 0, len;
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guchar c = *cp;
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if (c < 0x80)
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{
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len = 1;
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mask = 0x7f;
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}
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else if ((c & 0xe0) == 0xc0)
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{
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len = 2;
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mask = 0x1f;
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}
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else if ((c & 0xf0) == 0xe0)
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{
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len = 3;
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mask = 0x0f;
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}
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else if ((c & 0xf8) == 0xf0)
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{
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len = 4;
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mask = 0x07;
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}
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else if ((c & 0xfc) == 0xf8)
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{
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len = 5;
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mask = 0x03;
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}
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else if ((c & 0xfc) == 0xfc)
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{
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len = 6;
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mask = 0x01;
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}
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else
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return -1;
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if (cp + len > end)
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return -1;
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*dest = (cp[0] & mask);
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for (i = 1; i < len; i++)
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{
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if ((cp[i] & 0xc0) != 0x80)
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return -1;
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*dest <<= 6;
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*dest |= (cp[i] & 0x3f);
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}
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if (*dest == -1)
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return -1;
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cp += len;
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dest++;
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n++;
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}
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if (cp != end)
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return -1;
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return n;
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}
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gint
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gdk_mbstowcs (GdkWChar *dest,
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const gchar *src,
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gint dest_max)
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{
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return gdk_nmbstowcs (dest, src, strlen (src), dest_max);
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}
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/* A version that converts to wchar_t wide chars */
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gint
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gdk_nmbstowchar_ts (wchar_t *dest,
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const gchar *src,
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gint src_len,
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gint dest_max)
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{
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wchar_t *wcp;
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guchar *cp, *end;
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gint n;
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wcp = dest;
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cp = (guchar *) src;
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end = cp + src_len;
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n = 0;
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while (cp != end && wcp != dest + dest_max)
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{
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gint i, mask = 0, len;
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guchar c = *cp;
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if (c < 0x80)
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{
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len = 1;
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mask = 0x7f;
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}
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else if ((c & 0xe0) == 0xc0)
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{
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len = 2;
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mask = 0x1f;
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}
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else if ((c & 0xf0) == 0xe0)
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{
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len = 3;
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mask = 0x0f;
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}
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else /* Other lengths are not possible with 16-bit wchar_t! */
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return -1;
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if (cp + len > end)
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return -1;
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*wcp = (cp[0] & mask);
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for (i = 1; i < len; i++)
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{
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if ((cp[i] & 0xc0) != 0x80)
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return -1;
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*wcp <<= 6;
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*wcp |= (cp[i] & 0x3f);
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}
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if (*wcp == 0xFFFF)
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return -1;
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cp += len;
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wcp++;
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n++;
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}
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if (cp != end)
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return -1;
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return n;
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}
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