sampleim.c

手写识别Chinput3.0.2源代码,可以在linux下开发手写板程序

/******************************************************************
 
         Copyright 1994, 1995 by Sun Microsystems, Inc.
         Copyright 1993, 1994 by Hewlett-Packard Company
 
Permission to use, copy, modify, distribute, and sell this software
and its documentation for any purpose is hereby granted without fee,
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 Sun Microsystems, Inc.
and Hewlett-Packard not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior permission.
Sun Microsystems, Inc. and Hewlett-Packard make no representations about
the suitability of this software for any purpose.  It is provided "as is"
without express or implied warranty.
 
SUN MICROSYSTEMS INC. AND HEWLETT-PACKARD COMPANY DISCLAIMS ALL
WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
SUN MICROSYSTEMS, INC. AND HEWLETT-PACKARD COMPANY 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: Hidetoshi Tajima([e-mail]) Sun Microsystems, Inc.
 
******************************************************************/
#include <stdio.h>
#include <X11/Xlocale.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
#include "IMdkit.h"
#include "Xi18n.h"

#define DEFAULT_IMNAME "sampleIM"
#define DEFAULT_LOCALE "zh_CN"

/* flags for debugging */
Bool use_trigger = True;	/* Dynamic Event Flow is default */
Bool use_offkey = False;	/* Register OFF Key for Dynamic Event Flow */
Bool use_tcp = False;		/* Using TCP/IP Transport or not */
Bool use_local = False;		/* Using Unix domain Tranport or not */
long filter_mask = KeyPressMask;
CARD16 last_icid = 0;
CARD16 last_connectid = 0;

/* Supported Inputstyles */
static XIMStyle Styles[] = {
    XIMPreeditPosition|XIMStatusNothing,
    XIMPreeditPosition|XIMStatusArea,
    XIMPreeditArea|XIMStatusArea,
    XIMPreeditNothing|XIMStatusNothing,
    XIMPreeditCallbacks|XIMStatusCallbacks,
    0
};

/* Trigger Keys List */
static XIMTriggerKey Trigger_Keys[] = {
    {XK_space, ShiftMask, ShiftMask},
    {0L, 0L, 0L}
};

/* Conversion Keys List */
static XIMTriggerKey Conversion_Keys[] = {
    {XK_k, ControlMask, ControlMask},
    {0L, 0L, 0L}
};

/* Forward Keys List */
static XIMTriggerKey Forward_Keys[] = {
    {XK_Return, 0, 0},
    {XK_Tab, 0, 0},
    {0L, 0L, 0L}
};

/* Supported Taiwanese Encodings */
static XIMEncoding zhEncodings[] = {
    "COMPOUND_TEXT",
    NULL
};

MyGetICValuesHandler(ims, call_data)
XIMS ims;
IMChangeICStruct *call_data;
{
    GetIC(call_data);
    return True;
}

MySetICValuesHandler(ims, call_data)
XIMS ims;
IMChangeICStruct *call_data;
{
    SetIC(call_data);
    return True;
}

MyOpenHandler(ims, call_data)
XIMS ims;
IMOpenStruct *call_data;
{
#ifdef DEBUG
    printf("new_client lang = %s\n", call_data->lang.name);
    printf("     connect_id = 0x%x\n", (int)call_data->connect_id);
#endif
    return True;
}

MyCloseHandler(ims, call_data)
XIMS ims;
IMOpenStruct *call_data;
{
#ifdef DEBUG
    printf("closing connect_id 0x%x\n", (int)call_data->connect_id);
#endif
    return True;
}

MyCreateICHandler(ims, call_data)
XIMS ims;
IMChangeICStruct *call_data;
{
    CreateIC(call_data);
    return True;
}

MyDestroyICHandler(ims, call_data)
XIMS ims;
IMChangeICStruct *call_data;
{
    DestroyIC(call_data);
    return True;
}

#define STRBUFLEN 64
IsKey(ims, call_data, trigger)
XIMS ims;
IMForwardEventStruct *call_data;
XIMTriggerKey *trigger;		       /* Searching for these keys */
{
    char strbuf[STRBUFLEN];
    KeySym keysym;
    int i;
    int modifier;
    int modifier_mask;
    XKeyEvent *kev;

    memset(strbuf, 0, STRBUFLEN);
    kev = (XKeyEvent*)&call_data->event;
    XLookupString(kev, strbuf, STRBUFLEN, &keysym, NULL);

    for (i = 0; trigger[i].keysym != 0; i++) {
	modifier      = trigger[i].modifier;
	modifier_mask = trigger[i].modifier_mask;
	if (((KeySym)trigger[i].keysym == keysym)
	    && ((kev->state & modifier_mask) == modifier))
	  return True;
    }
    return False;
}

ProcessKey(ims, call_data)
XIMS ims;
IMForwardEventStruct *call_data;
{
    char strbuf[STRBUFLEN];
    KeySym keysym;
    XKeyEvent *kev;
    int count;

    fprintf(stderr, "Processing \n");
    memset(strbuf, 0, STRBUFLEN);
    kev = (XKeyEvent*)&call_data->event;
    count = XLookupString(kev, strbuf, STRBUFLEN, &keysym, NULL);

    if (count > 0) {
	fprintf(stdout, "[%s] ", strbuf);
    }
}

MyForwardEventHandler(ims, call_data)
XIMS ims;
IMForwardEventStruct *call_data;
{
    /* Lookup KeyPress Events only */
    fprintf(stderr, "ForwardEventHandler\n");
    if (call_data->event.type != KeyPress) {
        fprintf(stderr, "bogus event type, ignored\n");
    	return True;
    }

    /* In case of Static Event Flow */
    if (!use_trigger) {
	static Bool preedit_state_flag = False;
	if (IsKey(ims, call_data, Trigger_Keys)) {
	    preedit_state_flag = !preedit_state_flag;
	    return True;
	}
    }

    /* In case of Dynamic Event Flow without registering OFF keys,
       the end of preediting must be notified from IMserver to
       IMlibrary. */
    if (use_trigger && !use_offkey) {
	if (IsKey(ims, call_data, Trigger_Keys)) {
	    return IMPreeditEnd(ims, (XPointer)call_data);
	}
    }
    last_connectid = (int)call_data->connect_id;
    last_icid = (int)call_data->icid;

printf("last id:%x %x\n", last_icid, last_connectid);
    if (IsKey(ims, call_data, Conversion_Keys)) {
	XTextProperty tp;
	Display *display = ims->core.display;
	/* char *text = "硂琌