Source

xemacs-beta / src / xmu.c

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
/* This file contains compatibility routines for systems without Xmu.
 * You would be better served by installing Xmu on your machine or
 * yelling at your vendor to ship it.
 */

/* XEmacs changes: rindex -> strrchr */

/* Synched up with: Not in FSF. */

#include <config.h>

#ifndef HAVE_XMU
/*
 * Copyright 1989 Massachusetts Institute of Technology
 *
 * 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 M.I.T. not be used in advertising
 * or publicity pertaining to distribution of the software without specific,
 * written prior permission.  M.I.T. makes no representations about the
 * suitability of this software for any purpose.  It is provided "as is"
 * without express or implied warranty.
 *
 * M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL M.I.T.
 * 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.
 */
#include <X11/cursorfont.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Intrinsic.h>

/* for XmuCopyISOLatin1Lowered */
#define XK_LATIN1
#include <X11/keysymdef.h>
#undef XK_LATIN1

#if (XtSpecificationRelease >= 5)
/*
 * Don't know why, but this works with X11R5, not X11R4.
 * Anyway, _XExtension is defined in Xlib.h in X11R4, so we do not need
 * Xlibint in that case...
 */
#include <X11/Xlibint.h>
#endif
#include <X11/Xproto.h>
#include <stdio.h>
#include <ctype.h>


int XmuCursorNameToIndex (CONST char *name)
{
    static CONST struct _CursorName {
	CONST char	*name;
	unsigned int	shape;
    } cursor_names[] = {
			{"x_cursor",		XC_X_cursor},
			{"arrow",		XC_arrow},
			{"based_arrow_down",	XC_based_arrow_down},
			{"based_arrow_up",	XC_based_arrow_up},
			{"boat",		XC_boat},
			{"bogosity",		XC_bogosity},
			{"bottom_left_corner",	XC_bottom_left_corner},
			{"bottom_right_corner",	XC_bottom_right_corner},
			{"bottom_side",		XC_bottom_side},
			{"bottom_tee",		XC_bottom_tee},
			{"box_spiral",		XC_box_spiral},
			{"center_ptr",		XC_center_ptr},
			{"circle",		XC_circle},
			{"clock",		XC_clock},
			{"coffee_mug",		XC_coffee_mug},
			{"cross",		XC_cross},
			{"cross_reverse",	XC_cross_reverse},
			{"crosshair",		XC_crosshair},
			{"diamond_cross",	XC_diamond_cross},
			{"dot",			XC_dot},
			{"dotbox",		XC_dotbox},
			{"double_arrow",	XC_double_arrow},
			{"draft_large",		XC_draft_large},
			{"draft_small",		XC_draft_small},
			{"draped_box",		XC_draped_box},
			{"exchange",		XC_exchange},
			{"fleur",		XC_fleur},
			{"gobbler",		XC_gobbler},
			{"gumby",		XC_gumby},
			{"hand1",		XC_hand1},
			{"hand2",		XC_hand2},
			{"heart",		XC_heart},
			{"icon",		XC_icon},
			{"iron_cross",		XC_iron_cross},
			{"left_ptr",		XC_left_ptr},
			{"left_side",		XC_left_side},
			{"left_tee",		XC_left_tee},
			{"leftbutton",		XC_leftbutton},
			{"ll_angle",		XC_ll_angle},
			{"lr_angle",		XC_lr_angle},
			{"man",			XC_man},
			{"middlebutton",	XC_middlebutton},
			{"mouse",		XC_mouse},
			{"pencil",		XC_pencil},
			{"pirate",		XC_pirate},
			{"plus",		XC_plus},
			{"question_arrow",	XC_question_arrow},
			{"right_ptr",		XC_right_ptr},
			{"right_side",		XC_right_side},
			{"right_tee",		XC_right_tee},
			{"rightbutton",		XC_rightbutton},
			{"rtl_logo",		XC_rtl_logo},
			{"sailboat",		XC_sailboat},
			{"sb_down_arrow",	XC_sb_down_arrow},
			{"sb_h_double_arrow",	XC_sb_h_double_arrow},
			{"sb_left_arrow",	XC_sb_left_arrow},
			{"sb_right_arrow",	XC_sb_right_arrow},
			{"sb_up_arrow",		XC_sb_up_arrow},
			{"sb_v_double_arrow",	XC_sb_v_double_arrow},
			{"shuttle",		XC_shuttle},
			{"sizing",		XC_sizing},
			{"spider",		XC_spider},
			{"spraycan",		XC_spraycan},
			{"star",		XC_star},
			{"target",		XC_target},
			{"tcross",		XC_tcross},
			{"top_left_arrow",	XC_top_left_arrow},
			{"top_left_corner",	XC_top_left_corner},
			{"top_right_corner",	XC_top_right_corner},
			{"top_side",		XC_top_side},
			{"top_tee",		XC_top_tee},
			{"trek",		XC_trek},
			{"ul_angle",		XC_ul_angle},
			{"umbrella",		XC_umbrella},
			{"ur_angle",		XC_ur_angle},
			{"watch",		XC_watch},
			{"xterm",		XC_xterm},
    };
    CONST struct _CursorName *table;
    int i;
    char tmp[40];

    if (strlen (name) >= sizeof tmp) return -1;
    for (i=0; i<strlen(name); i++)
        if (isupper((unsigned char) name[i]))
            tmp[i] = tolower((unsigned char) name[i]);
        else
            tmp[i] = name[i];
    tmp[i] = 0;

    for (i=0, table=cursor_names; i < XtNumber(cursor_names); i++, table++ ) {
	if (strcmp(tmp, table->name) == 0) return table->shape;
    }

    return -1;
}


/*
 * Based on an optimized version provided by Jim Becker, Auguest 5, 1988.
 */


#define MAX_SIZE 255

/* shared data for the image read/parse logic */
static short hexTable[256];		/* conversion value */
static int hex_initialized;	/* easier to fill in at run time */


/*
 *	Table index for the hex values. Initialized once, first time.
 *	Used for translation value or delimiter significance lookup.
 */
static void initHexTable (void)
{
    /*
     * We build the table at run time for several reasons:
     *
     *     1.  portable to non-ASCII machines.
     *     2.  still reentrant since we set the init flag after setting table.
     *     3.  easier to extend.
     *     4.  less prone to bugs.
     */
    hexTable['0'] = 0;	hexTable['1'] = 1;
    hexTable['2'] = 2;	hexTable['3'] = 3;
    hexTable['4'] = 4;	hexTable['5'] = 5;
    hexTable['6'] = 6;	hexTable['7'] = 7;
    hexTable['8'] = 8;	hexTable['9'] = 9;
    hexTable['A'] = 10;	hexTable['B'] = 11;
    hexTable['C'] = 12;	hexTable['D'] = 13;
    hexTable['E'] = 14;	hexTable['F'] = 15;
    hexTable['a'] = 10;	hexTable['b'] = 11;
    hexTable['c'] = 12;	hexTable['d'] = 13;
    hexTable['e'] = 14;	hexTable['f'] = 15;

    /* delimiters of significance are flagged w/ negative value */
    hexTable[' '] = -1;	hexTable[','] = -1;
    hexTable['}'] = -1;	hexTable['\n'] = -1;
    hexTable['\t'] = -1;

    hex_initialized = 1;
}

/*
 *	read next hex value in the input stream, return -1 if EOF
 */
static int NextInt (FILE *fstream)
{
    int	ch;
    int	value = 0;
    int gotone = 0;
    int done = 0;

    /* loop, accumulate hex value until find delimiter  */
    /* skip any initial delimiters found in read stream */

    while (!done) {
	ch = getc(fstream);
	if (ch == EOF) {
	    value	= -1;
	    done++;
	} else {
	    /* trim high bits, check type and accumulate */
	    ch &= 0xff;
	    if (isascii(ch) && isxdigit(ch)) {
		value = (value << 4) + hexTable[ch];
		gotone++;
	    } else if ((hexTable[ch]) < 0 && gotone)
	      done++;
	}
    }
    return value;
}


/*
 * The data returned by the following routine is always in left-most byte
 * first and left-most bit first.  If it doesn't return BitmapSuccess then
 * its arguments won't have been touched.  This routine should look as much
 * like the Xlib routine XReadBitmapfile as possible.
 */
int XmuReadBitmapData (
    FILE *fstream,			/* handle on file  */
    unsigned int *width,		/* RETURNED */
    unsigned int *height,		/* RETURNED */
    unsigned char **datap,		/* RETURNED */
    int *x_hot, int *y_hot)		/* RETURNED */
{
    unsigned char *data = NULL;		/* working variable */
    char line[MAX_SIZE];		/* input line from file */
    int size;				/* number of bytes of data */
    char name_and_type[MAX_SIZE];	/* an input line */
    char *type;				/* for parsing */
    int value;				/* from an input line */
    int version10p;			/* boolean, old format */
    int padding;			/* to handle alignment */
    int bytes_per_line;			/* per scanline of data */
    unsigned int ww = 0;		/* width */
    unsigned int hh = 0;		/* height */
    int hx = -1;			/* x hotspot */
    int hy = -1;			/* y hotspot */

#ifndef Xmalloc
#define Xmalloc(size) malloc(size)
#endif

    /* first time initialization */
    if (!hex_initialized) initHexTable();

    /* error cleanup and return macro	*/
#define	RETURN(code) { if (data) free (data); return code; }

    while (fgets(line, MAX_SIZE, fstream)) {
	if (strlen(line) == MAX_SIZE-1) {
	    RETURN (BitmapFileInvalid);
	}
	if (sscanf(line,"#define %s %d",name_and_type,&value) == 2) {
	    if (!(type = strrchr(name_and_type, '_')))
	      type = name_and_type;
	    else
	      type++;

	    if (!strcmp("width", type))
	      ww = (unsigned int) value;
	    if (!strcmp("height", type))
	      hh = (unsigned int) value;
	    if (!strcmp("hot", type)) {
		if (type-- == name_and_type || type-- == name_and_type)
		  continue;
		if (!strcmp("x_hot", type))
		  hx = value;
		if (!strcmp("y_hot", type))
		  hy = value;
	    }
	    continue;
	}

	if (sscanf(line, "static short %s = {", name_and_type) == 1)
	  version10p = 1;
	else if (sscanf(line,"static unsigned char %s = {",name_and_type) == 1)
	  version10p = 0;
	else if (sscanf(line, "static char %s = {", name_and_type) == 1)
	  version10p = 0;
	else
	  continue;

	if (!(type = strrchr(name_and_type, '_')))
	  type = name_and_type;
	else
	  type++;

	if (strcmp("bits[]", type))
	  continue;

	if (!ww || !hh)
	  RETURN (BitmapFileInvalid);

	if ((ww % 16) && ((ww % 16) < 9) && version10p)
	  padding = 1;
	else
	  padding = 0;

	bytes_per_line = (ww+7)/8 + padding;

	size = bytes_per_line * hh;
	data = (unsigned char *) Xmalloc ((unsigned int) size);
	if (!data)
	  RETURN (BitmapNoMemory);

	if (version10p) {
	    unsigned char *ptr;
	    int bytes;

	    for (bytes=0, ptr=data; bytes<size; (bytes += 2)) {
		if ((value = NextInt(fstream)) < 0)
		  RETURN (BitmapFileInvalid);
		*(ptr++) = value;
		if (!padding || ((bytes+2) % bytes_per_line))
		  *(ptr++) = value >> 8;
	    }
	} else {
	    unsigned char *ptr;
	    int bytes;

	    for (bytes=0, ptr=data; bytes<size; bytes++, ptr++) {
		if ((value = NextInt(fstream)) < 0)
		  RETURN (BitmapFileInvalid);
		*ptr=value;
	    }
	}
	break;
    }					/* end while */

    if (data == NULL) {
	RETURN (BitmapFileInvalid);
    }

    *datap = data;
    data = NULL;
    *width = ww;
    *height = hh;
    if (x_hot) *x_hot = hx;
    if (y_hot) *y_hot = hy;

    RETURN (BitmapSuccess);
}


int XmuReadBitmapDataFromFile (CONST char *filename,
			       /* Remaining args are RETURNED */
			       unsigned int *width,
			       unsigned int *height,
			       unsigned char **datap,
			       int *x_hot, int *y_hot)
{
    FILE *fstream;
    int status;

    if ((fstream = fopen (filename, "r")) == NULL) {
	return BitmapOpenFailed;
    }
    status = XmuReadBitmapData (fstream, width, height, datap, x_hot, y_hot);
    fclose (fstream);
    return status;
}

/*
 * XmuPrintDefaultErrorMessage - print a nice error that looks like the usual
 * message.  Returns 1 if the caller should consider exitting else 0.
 */
int XmuPrintDefaultErrorMessage (Display *dpy, XErrorEvent *event, FILE *fp)
{
    char buffer[BUFSIZ];
    char mesg[BUFSIZ];
    char number[32];
    char *mtype = "XlibMessage";
    _XExtension *ext = (_XExtension *)NULL;
    XGetErrorText(dpy, event->error_code, buffer, BUFSIZ);
    XGetErrorDatabaseText(dpy, mtype, "XError", "X Error", mesg, BUFSIZ);
    fprintf(fp, "%s:  %s\n  ", mesg, buffer);
    XGetErrorDatabaseText(dpy, mtype, "MajorCode", "Request Major code %d",
	mesg, BUFSIZ);
    fprintf(fp, mesg, event->request_code);
    if (event->request_code < 128) {
	sprintf(number, "%d", event->request_code);
	XGetErrorDatabaseText(dpy, "XRequest", number, "", buffer, BUFSIZ);
    } else {
	/* XXX this is non-portable */
	for (ext = dpy->ext_procs;
	     ext && (ext->codes.major_opcode != event->request_code);
	     ext = ext->next)
	  ;
	if (ext)
	    strcpy(buffer, ext->name);
	else
	    buffer[0] = '\0';
    }
    fprintf(fp, " (%s)", buffer);
    fputs("\n  ", fp);
#if (XtSpecificationRelease >= 5)
    if (event->request_code >= 128) {
	XGetErrorDatabaseText(dpy, mtype, "MinorCode", "Request Minor code %d",
			      mesg, BUFSIZ);
	fprintf(fp, mesg, event->minor_code);
	if (ext) {
	    sprintf(mesg, "%s.%d", ext->name, event->minor_code);
	    XGetErrorDatabaseText(dpy, "XRequest", mesg, "", buffer, BUFSIZ);
	    fprintf(fp, " (%s)", buffer);
	}
	fputs("\n  ", fp);
    }
    if (event->error_code >= 128) {
	/* let extensions try to print the values */
	/* XXX this is non-portable code */
	for (ext = dpy->ext_procs; ext; ext = ext->next) {
	    if (ext->error_values)
		(*ext->error_values)(dpy, event, fp);
	}
	/* the rest is a fallback, providing a simple default */
	/* kludge, try to find the extension that caused it */
	buffer[0] = '\0';
	for (ext = dpy->ext_procs; ext; ext = ext->next) {
	    if (ext->error_string)
		(*ext->error_string)(dpy, event->error_code, &ext->codes,
				     buffer, BUFSIZ);
	    if (buffer[0])
		break;
	}
	if (buffer[0])
	    sprintf(buffer, "%s.%d", ext->name,
		    event->error_code - ext->codes.first_error);
	else
	    strcpy(buffer, "Value");
	XGetErrorDatabaseText(dpy, mtype, buffer, "", mesg, BUFSIZ);
	if (*mesg) {
	    fprintf(fp, mesg, event->resourceid);
	    fputs("\n  ", fp);
	}
    } else if ((event->error_code == BadWindow) ||
	       (event->error_code == BadPixmap) ||
	       (event->error_code == BadCursor) ||
	       (event->error_code == BadFont) ||
	       (event->error_code == BadDrawable) ||
	       (event->error_code == BadColor) ||
	       (event->error_code == BadGC) ||
	       (event->error_code == BadIDChoice) ||
	       (event->error_code == BadValue) ||
	       (event->error_code == BadAtom)) {
	if (event->error_code == BadValue)
	    XGetErrorDatabaseText(dpy, mtype, "Value", "Value 0x%x",
				  mesg, BUFSIZ);
	else if (event->error_code == BadAtom)
	    XGetErrorDatabaseText(dpy, mtype, "AtomID", "AtomID 0x%x",
				  mesg, BUFSIZ);
	else
	    XGetErrorDatabaseText(dpy, mtype, "ResourceID", "ResourceID 0x%x",
				  mesg, BUFSIZ);
	fprintf(fp, mesg, event->resourceid);
	fputs("\n  ", fp);
    }
#elif (XtSpecificationRelease == 4)
    XGetErrorDatabaseText(dpy, mtype, "MinorCode", "Request Minor code %d",
			  mesg, BUFSIZ);
    fprintf(fp, mesg, event->minor_code);
    fputs("\n  ", fp);
    if (ext) {
      sprintf(mesg, "%s.%d", ext->name, event->minor_code);
      XGetErrorDatabaseText(dpy, "XRequest", mesg, "", buffer, BUFSIZ);
      fprintf(fp, " (%s)", buffer);
    }
    XGetErrorDatabaseText(dpy, mtype, "ResourceID", "ResourceID 0x%x",
			  mesg, BUFSIZ);
    fprintf(fp, mesg, event->resourceid);
    fputs("\n  ", fp);
#else
ERROR! Unsupported release of X11
#endif
    XGetErrorDatabaseText(dpy, mtype, "ErrorSerial", "Error Serial #%d",
	mesg, BUFSIZ);
    fprintf(fp, mesg, event->serial);
    fputs("\n  ", fp);
    XGetErrorDatabaseText(dpy, mtype, "CurrentSerial", "Current Serial #%d",
	mesg, BUFSIZ);
    fprintf(fp, mesg, NextRequest(dpy)-1);
    fputs("\n", fp);
    if (event->error_code == BadImplementation) return 0;
    return 1;
}


/*
 * XmuSimpleErrorHandler - ignore errors for XQueryTree, XGetWindowAttributes,
 * and XGetGeometry; print a message for everything else.  In all case, do
 * not exit.
 */
int XmuSimpleErrorHandler (Display *dpy, XErrorEvent *errorp)
{
    switch (errorp->request_code) {
      case X_QueryTree:
      case X_GetWindowAttributes:
        if (errorp->error_code == BadWindow) return 0;
	break;
      case X_GetGeometry:
	if (errorp->error_code == BadDrawable) return 0;
	break;
    }
    /* got a "real" X error */
    return XmuPrintDefaultErrorMessage (dpy, errorp, stderr);
}

void XmuCopyISOLatin1Lowered(char *dst, CONST char *src)
{
    unsigned char *dest   = (unsigned char *) dst;
    unsigned char *source = (unsigned char *) src;

    for ( ; *source; source++, dest++)
    {
        if ((*source >= XK_A) && (*source <= XK_Z))
            *dest = *source + (XK_a - XK_A);
        else if ((*source >= XK_Agrave) && (*source <= XK_Odiaeresis))
            *dest = *source + (XK_agrave - XK_Agrave);
        else if ((*source >= XK_Ooblique) && (*source <= XK_Thorn))
            *dest = *source + (XK_oslash - XK_Ooblique);
        else
            *dest = *source;
    }
    *dest = '\0';
}
#endif /* !HAVE_XMU */
Tip: Filter by directory path e.g. /media app.js to search for public/media/app.js.
Tip: Use camelCasing e.g. ProjME to search for ProjectModifiedEvent.java.
Tip: Filter by extension type e.g. /repo .js to search for all .js files in the /repo directory.
Tip: Separate your search with spaces e.g. /ssh pom.xml to search for src/ssh/pom.xml.
Tip: Use ↑ and ↓ arrow keys to navigate and return to view the file.
Tip: You can also navigate files with Ctrl+j (next) and Ctrl+k (previous) and view the file with Ctrl+o.
Tip: You can also navigate files with Alt+j (next) and Alt+k (previous) and view the file with Alt+o.