src/gtx/X11windows.c

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 /*
  11  * gator_X11windows.c
  12  *
  13  * Description:
  14  *      Implementation of the gator X11 window facility.
  15  *
  16  *------------------------------------------------------------------------*/
  17
  18 #include <afsconfig.h>
  19 #include <afs/param.h>
  20
  21
  22 #include "gtxX11win.h"          /*Interface definition */
  23 #include <stdio.h>              /*Standard I/O package */
  24
  25 #if     !defined(NeXT)
  26 extern int errno;               /*System error number */
  27 #endif /* NeXT */
  28 int X11_debug;                  /*Is debugging turned on? */
  29 static char mn[] = "gator_X11windows";  /*Module name */
  30
  31 /*
  32  * Version of standard operations for a X11 window.
  33  */
  34 struct gwinops X11_gwinops = {
  35     gator_X11gwin_box,
  36     gator_X11gwin_clear,
  37     gator_X11gwin_destroy,
  38     gator_X11gwin_display,
  39     gator_X11gwin_drawline,
  40     gator_X11gwin_drawrectangle,
  41     gator_X11gwin_drawchar,
  42     gator_X11gwin_drawstring,
  43     gator_X11gwin_invert,
  44     gator_X11gwin_getchar,
  45     gator_X11gwin_getdimensions,
  46     gator_X11gwin_wait,
  47 };
  48
  49 struct gwinbaseops gator_X11_gwinbops = {
  50     gator_X11gwin_create,
  51     gator_X11gwin_cleanup
  52 };
  53
  54 /*
  55  * Macros to map pixel positions to row & column positions.
  56  * (Note: for now, they are the identity function!!)
  57  */
  58 #define GATOR_MAP_X_TO_COL(w, x)    (x)
  59 #define GATOR_MAP_Y_TO_LINE(w, y)   (y)
  60
  61 /*------------------------------------------------------------------------
  62  * gator_X11gwin_init
  63  *
  64  * Description:
  65  *      Initialize the X11 window package.
  66  *
  67  * Arguments:
  68  *      int adebug: Is debugging turned on?
  69  *
  70  * Returns:
  71  *      0 on success,
  72  *      Error value otherwise.
  73  *
  74  * Environment:
  75  *      Nothing interesting.
  76  *
  77  * Side Effects:
  78  *      As advertised.
  79  *------------------------------------------------------------------------*/
  80
  81 int
  82 gator_X11gwin_init(int adebug)
  83 {                               /*gator_X11gwin_init */
  84
  85     static char rn[] = "gator_X11gwin_init";    /*Routine name */
  86
  87     /*
  88      * Remember if we'll be doing debugging, init X11 and clear the
  89      * standard screen.
  90      */
  91     X11_debug = adebug;
  92
  93     if (X11_debug)
  94         fprintf(stderr, "[%s:%s] Called\n", mn, rn);
  95
  96     /*
  97      * We return success, fill this routine it at some point.
  98      */
  99     return (0);
 100
 101 }                               /*gator_X11gwin_init */
 102
 103 /*------------------------------------------------------------------------
 104  * gator_X11gwin_create
 105  *
 106  * Description:
 107  *      Create a X11 window.
 108  *
 109  * Arguments:
 110  *      struct gator_X11gwin_params *params : Ptr to creation parameters.
 111  *
 112  * Returns:
 113  *      Ptr to the created X11 window if successful,
 114  *      Null ptr otherwise.
 115  *
 116  * Environment:
 117  *      Nothing interesting.
 118  *
 119  * Side Effects:
 120  *      As advertised.
 121  *------------------------------------------------------------------------*/
 122
 123 struct gwin *
 124 gator_X11gwin_create(void *rock)
 125 {                               /*gator_X11gwin_create */
 126
 127     static char rn[] = "gator_X11gwin_create";  /*Routine name */
 128
 129     if (X11_debug)
 130         fprintf(stderr, "[%s:%s] Called\n", mn, rn);
 131
 132     return (NULL);
 133
 134 }                               /*gator_X11gwin_create */
 135
 136 /*------------------------------------------------------------------------
 137  * gator_X11gwin_cleanup
 138  *
 139  * Description:
 140  *      Create a X11 window.
 141  *
 142  * Arguments:
 143  *      struct gwin *gwp : Ptr to base window.
 144  *
 145  * Returns:
 146  *      0 on success,
 147  *      Error value otherwise.
 148  *
 149  * Environment:
 150  *      Nothing interesting.
 151  *
 152  * Side Effects:
 153  *      As advertised.
 154  *------------------------------------------------------------------------*/
 155
 156 int
 157 gator_X11gwin_cleanup(struct gwin *gwp)
 158 {                               /*gator_X11gwin_cleanup */
 159
 160     static char rn[] = "gator_X11gwin_cleanup"; /*Routine name */
 161
 162     if (X11_debug)
 163         fprintf(stderr, "[%s:%s] Called\n", mn, rn);
 164
 165     return (0);
 166
 167 }                               /*gator_X11gwin_cleanup */
 168
 169 /*------------------------------------------------------------------------
 170  * gator_X11gwin_box
 171  *
 172  * Description:
 173  *      Draw a box around the given X11 window.
 174  *
 175  * Arguments:
 176  *      struct gwin *gwp : Ptr to the X11 window to draw
 177  *                         a box around.
 178  *
 179  * Returns:
 180  *      0 on success,
 181  *      Error value otherwise.
 182  *
 183  * Environment:
 184  *      Nothing interesting.
 185  *
 186  * Side Effects:
 187  *      As advertised.
 188  *------------------------------------------------------------------------*/
 189
 190 int
 191 gator_X11gwin_box(struct gwin *gwp)
 192 {                               /*gator_X11gwin_box */
 193
 194     static char rn[] = "gator_X11gwin_box";     /*Routine name */
 195
 196     if (X11_debug)
 197         fprintf(stderr, "[%s:%s] Called\n", mn, rn);
 198
 199     return (0);
 200
 201 }                               /*gator_X11gwin_box */
 202
 203 /*------------------------------------------------------------------------
 204  * gator_X11gwin_clear
 205  *
 206  * Description:
 207  *      Clear out the given X11 window.
 208  *
 209  * Arguments:
 210  *      struct gwin *gwp : Ptr to the X11 window to clear out.
 211  *
 212  * Returns:
 213  *      0 on success,
 214  *      Error value otherwise.
 215  *
 216  * Environment:
 217  *      Nothing interesting.
 218  *
 219  * Side Effects:
 220  *      As advertised.
 221  *------------------------------------------------------------------------*/
 222
 223 int
 224 gator_X11gwin_clear(struct gwin *gwp)
 225 {                               /*gator_X11gwin_clear */
 226
 227     static char rn[] = "gator_X11gwin_clear";   /*Routine name */
 228
 229     if (X11_debug)
 230         fprintf(stderr, "[%s:%s] Called\n", mn, rn);
 231
 232     return (0);
 233
 234 }                               /*gator_X11gwin_clear */
 235
 236 /*------------------------------------------------------------------------
 237  * gator_X11gwin_destroy
 238  *
 239  * Description:
 240  *      Destroy the given X11 window.
 241  *
 242  * Arguments:
 243  *      struct gwin *gwp : Ptr to the X11 window to destroy.
 244  *
 245  * Returns:
 246  *      0 on success,
 247  *      Error value otherwise.
 248  *
 249  * Environment:
 250  *      Nothing interesting.
 251  *
 252  * Side Effects:
 253  *      As advertised.
 254  *------------------------------------------------------------------------*/
 255
 256 int
 257 gator_X11gwin_destroy(struct gwin *gwp)
 258 {                               /*gator_X11gwin_destroy */
 259
 260     static char rn[] = "gator_X11gwin_destroy"; /*Routine name */
 261
 262     if (X11_debug)
 263         fprintf(stderr, "[%s:%s] Called\n", mn, rn);
 264
 265     return (0);
 266
 267 }                               /*gator_X11gwin_destroy */
 268
 269 /*------------------------------------------------------------------------
 270  * gator_X11gwin_display
 271  *
 272  * Description:
 273  *      Display/redraw the given X11 window.
 274  *
 275  * Arguments:
 276  *      struct gwin *gwp : Ptr to the X11 window to draw.
 277  *
 278  * Returns:
 279  *      0 on success,
 280  *      Error value otherwise.
 281  *
 282  * Environment:
 283  *      Nothing interesting.
 284  *
 285  * Side Effects:
 286  *      As advertised.
 287  *------------------------------------------------------------------------*/
 288
 289 int
 290 gator_X11gwin_display(struct gwin *gwp)
 291 {                               /*gator_X11gwin_display */
 292
 293     static char rn[] = "gator_X11gwin_display"; /*Routine name */
 294
 295     if (X11_debug)
 296         fprintf(stderr, "[%s:%s] Called\n", mn, rn);
 297
 298     return (0);
 299
 300 }                               /*gator_X11gwin_display */
 301
 302 /*------------------------------------------------------------------------
 303  * gator_X11gwin_drawline
 304  *
 305  * Description:
 306  *      Draw a line between two points in the given X11
 307  *      window.
 308  *
 309  * Arguments:
 310  *      struct gwin *gwp : Ptr to the X11 window in which
 311  *                                 the line is to be drawn.
 312  *      struct gwin_lineparams *params : Ptr to other params.
 313  *
 314  * Returns:
 315  *      0 on success,
 316  *      Error value otherwise.
 317  *
 318  * Environment:
 319  *      Nothing interesting.
 320  *
 321  * Side Effects:
 322  *      As advertised.
 323  *------------------------------------------------------------------------*/
 324
 325 int
 326 gator_X11gwin_drawline(struct gwin *gwp, struct gwin_lineparams *params)
 327 {                               /*gator_X11gwin_drawline */
 328
 329     static char rn[] = "gator_X11gwin_drawline";        /*Routine name */
 330
 331     if (X11_debug)
 332         fprintf(stderr, "[%s:%s] This routine is currently a no-op\n", mn,
 333                 rn);
 334
 335     return (0);
 336
 337 }                               /*gator_X11gwin_drawline */
 338
 339 /*------------------------------------------------------------------------
 340  * gator_X11gwin_drawrectangle
 341  *
 342  * Description:
 343  *      Draw a rectangle in the given X11 window.
 344  *
 345  * Arguments:
 346  *      struct gwin *gwp : Ptr to the X11 window in which
 347  *                                 the rectangle is to be drawn.
 348  *      struct gwin_rectparams *params : Ptr to other params.
 349  *
 350  * Returns:
 351  *      0 on success,
 352  *      Error value otherwise.
 353  *
 354  * Environment:
 355  *      Nothing interesting.
 356  *
 357  * Side Effects:
 358  *      As advertised.
 359  *------------------------------------------------------------------------*/
 360
 361 int
 362 gator_X11gwin_drawrectangle(struct gwin *gwp, struct gwin_rectparams *params)
 363 {                               /*gator_X11gwin_drawrectangle */
 364
 365     static char rn[] = "gator_X11gwin_drawrectangle";   /*Routine name */
 366
 367     if (X11_debug)
 368         fprintf(stderr, "[%s:%s] This routine is currently a no-op\n", mn,
 369                 rn);
 370
 371     return (0);
 372
 373 }                               /*gator_X11gwin_drawrectangle */
 374
 375 /*------------------------------------------------------------------------
 376  * gator_X11gwin_drawchar
 377  *
 378  * Description:
 379  *      Draw a character in the given X11 window.
 380  *
 381  * Arguments:
 382  *      struct gwin *gwp : Ptr to the X11 window in which
 383  *                                 the character is to be drawn.
 384  *      struct gwin_charparams *params : Ptr to other params.
 385  *
 386  * Returns:
 387  *      0 on success,
 388  *      Error value otherwise.
 389  *
 390  * Environment:
 391  *      Nothing interesting.
 392  *
 393  * Side Effects:
 394  *      As advertised.
 395  *------------------------------------------------------------------------*/
 396
 397 int
 398 gator_X11gwin_drawchar(struct gwin *gwp, struct gwin_charparams *params)
 399 {                               /*gator_X11gwin_drawchar */
 400
 401     static char rn[] = "gator_X11gwin_drawchar";        /*Routine name */
 402
 403     if (X11_debug)
 404         fprintf(stderr, "[%s:%s] Called\n", mn, rn);
 405
 406     return (0);
 407
 408 }                               /*gator_X11gwin_drawchar */
 409
 410 /*------------------------------------------------------------------------
 411  * gator_X11gwin_drawstring
 412  *
 413  * Description:
 414  *      Draw a string in the given X11 window.
 415  *
 416  * Arguments:
 417  *      struct gwin *gwp : Ptr to the X11 window in which
 418  *                                 the string is to be drawn.
 419  *      struct gwin_strparams *params : Ptr to other params.
 420  *
 421  * Returns:
 422  *      0 on success,
 423  *      Error value otherwise.
 424  *
 425  * Environment:
 426  *      Nothing interesting.
 427  *
 428  * Side Effects:
 429  *      As advertised.
 430  *------------------------------------------------------------------------*/
 431
 432 int
 433 gator_X11gwin_drawstring(struct gwin *gwp, struct gwin_strparams *params)
 434 {                               /*gator_X11gwin_drawstring */
 435
 436     static char rn[] = "gator_X11gwin_drawstring";      /*Routine name */
 437
 438     if (X11_debug)
 439         fprintf(stderr, "[%s:%s] Called\n", mn, rn);
 440
 441     return (0);
 442
 443 }                               /*gator_X11gwin_drawstring */
 444
 445 /*------------------------------------------------------------------------
 446  * gator_X11gwin_invert
 447  *
 448  * Description:
 449  *      Invert a region in the given X11 window.
 450  *
 451  * Arguments:
 452  *      struct gwin *gwp : Ptr to the X11 window in which
 453  *                                 the inverted region lies.
 454  *      struct gwin_invparams *params : Ptr to other params.
 455  *
 456  * Returns:
 457  *      0 on success,
 458  *      Error value otherwise.
 459  *
 460  * Environment:
 461  *      Nothing interesting.
 462  *
 463  * Side Effects:
 464  *      As advertised.
 465  *------------------------------------------------------------------------*/
 466
 467 int
 468 gator_X11gwin_invert(struct gwin *gwp, struct gwin_invparams *params)
 469 {                               /*gator_X11gwin_invert */
 470
 471     static char rn[] = "gator_X11gwin_invert";  /*Routine name */
 472
 473     if (X11_debug)
 474         fprintf(stderr, "[%s:%s] This routine is currently a no-op\n", mn,
 475                 rn);
 476
 477     return (0);
 478
 479 }                               /*gator_X11gwin_invert */
 480
 481 /*------------------------------------------------------------------------
 482  * gator_X11gwin_getchar
 483  *
 484  * Description:
 485  *      Pick up a character from the given window.
 486  *
 487  * Arguments:
 488  *      struct gwin *gwp : Ptr to the X11 window to listen to.
 489  *
 490  * Returns:
 491  *      Value of the character read,
 492  *      -1 otherwise.
 493  *
 494  * Environment:
 495  *      Nothing interesting.
 496  *
 497  * Side Effects:
 498  *      As advertised.
 499  *------------------------------------------------------------------------*/
 500
 501 int
 502 gator_X11gwin_getchar(struct gwin *gwp)
 503 {                               /*gator_X11gwin_getchar */
 504
 505     static char rn[] = "gator_X11gwin_getchar"; /*Routine name */
 506
 507     if (X11_debug)
 508         fprintf(stderr, "[%s:%s] This routine is currently a no-op\n", mn,
 509                 rn);
 510
 511     return (-1);
 512
 513 }                               /*gator_X11gwin_getchar */
 514
 515 /*------------------------------------------------------------------------
 516  * gator_X11gwin_getdimensions
 517  *
 518  * Description:
 519  *      Get the window's X,Y dimensions.
 520  *
 521  * Arguments:
 522  *      struct gwin *gwp               : Ptr to the X11 window to examine.
 523  *      struct gwin_sizeparams *aparms : Ptr to size params to set.
 524  *
 525  * Returns:
 526  *      0 if successful,
 527  *      -1 otherwise.
 528  *
 529  * Environment:
 530  *      Nothing interesting.
 531  *
 532  * Side Effects:
 533  *      As advertised.
 534  *------------------------------------------------------------------------*/
 535
 536 int
 537 gator_X11gwin_getdimensions(struct gwin *gwp, struct gwin_sizeparams *aparms)
 538 {                               /*gator_X11gwin_getdimensions */
 539
 540     static char rn[] = "gator_X11gwin_getdimensions";   /*Routine name */
 541
 542     if (X11_debug)
 543         fprintf(stderr, "[%s:%s] This routine is currently a no-op\n", mn,
 544                 rn);
 545
 546     return (-1);
 547
 548 }                               /*gator_X11gwin_getdimensions */
 549
 550 /*------------------------------------------------------------------------
 551  * gator_X11gwin_wait
 552  *
 553  * Description:
 554  *      Wait until input is available.
 555  *
 556  * Arguments:
 557  *      struct gwin *gwp : Ptr to the X11 window to wait on.
 558  *
 559  * Returns:
 560  *      0 if successful,
 561  *      -1 otherwise.
 562  *
 563  * Environment:
 564  *      Nothing interesting.
 565  *
 566  * Side Effects:
 567  *      As advertised.
 568  *------------------------------------------------------------------------*/
 569
 570 int
 571 gator_X11gwin_wait(struct gwin *gwp)
 572 {                               /*gator_X11gwin_wait */
 573
 574     static char rn[] = "gator_X11gwin_wait";    /*Routine name */
 575
 576     if (X11_debug)
 577         fprintf(stderr, "[%s:%s] This routine is currently a no-op\n", mn,
 578                 rn);
 579
 580     return (-1);
 581
 582 }                               /*gator_X11gwin_wait */