src/frontends/xforms/XWorkArea.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2001 The LyX Team.
   8  *
   9  * ====================================================== */
  10
  11 #include <config.h>
  12
  13 #ifdef __GNUG__
  14 #pragma implementation
  15 #endif
  16
  17 #include "XWorkArea.h"
  18 #include "debug.h"
  19 #include "frontends/LyXView.h"
  20 #include "lyxrc.h" // lyxrc.show_banner
  21 #include "version.h" // lyx_version
  22
  23 #if FL_VERSION < 1 && (FL_REVISION < 89 || (FL_REVISION == 89 && FL_FIXLEVEL < 5))
  24 #include "frontends/xforms/lyxlookup.h"
  25 #endif
  26
  27 #include "support/filetools.h" // LibFileSearch
  28 #include "support/lstrings.h"
  29 #include "support/LAssert.h"
  30
  31 #include <cmath>
  32 #include <cctype>
  33
  34 // xforms doesn't define this (but it should be in <forms.h>).
  35 extern "C"
  36 FL_APPEVENT_CB fl_set_preemptive_callback(Window, FL_APPEVENT_CB, void *);
  37
  38 using std::endl;
  39 using std::abs;
  40 using std::hex;
  41
  42 namespace {
  43
  44 inline
  45 void waitForX()
  46 {
  47         XSync(fl_get_display(), 0);
  48 }
  49
  50 // FIXME !
  51 mouse_button::state x_button_state(unsigned int button)
  52 {
  53         mouse_button::state b = mouse_button::none;
  54         switch (button) {
  55                 case Button1:
  56                         b = mouse_button::button1;
  57                         break;
  58                 case Button2:
  59                         b = mouse_button::button2;
  60                         break;
  61                 case Button3:
  62                         b = mouse_button::button3;
  63                         break;
  64                 case Button4:
  65                         b = mouse_button::button4;
  66                         break;
  67                 case Button5:
  68                         b = mouse_button::button5;
  69                         break;
  70                 default: // FIXME
  71                         break;
  72         }
  73         return b;
  74 }
  75
  76
  77 // FIXME
  78 mouse_button::state x_motion_state(unsigned int state)
  79 {
  80         mouse_button::state b = mouse_button::none;
  81         if (state & Button1MotionMask)
  82                 b |= mouse_button::button1;
  83         if (state & Button2MotionMask)
  84                 b |= mouse_button::button2;
  85         if (state & Button3MotionMask)
  86                 b |= mouse_button::button3;
  87         if (state & Button4MotionMask)
  88                 b |= mouse_button::button4;
  89         if (state & Button5MotionMask)
  90                 b |= mouse_button::button5;
  91         return b;
  92 }
  93
  94
  95 key_modifier::state x_key_state(unsigned int state)
  96 {
  97         key_modifier::state k = key_modifier::none;
  98         if (state & ControlMask)
  99                 k |= key_modifier::ctrl;
 100         if (state & ShiftMask)
 101                 k |= key_modifier::shift;
 102         if (state & Mod1Mask)
 103                 k |= key_modifier::alt;
 104         return k;
 105 }
 106
 107
 108 } // anon namespace
 109
 110
 111 extern "C" {
 112         // Just a bunch of C wrappers around static members of WorkArea
 113         static
 114         void C_WorkArea_scroll_cb(FL_OBJECT * ob, long buf)
 115         {
 116                 WorkArea::scroll_cb(ob, buf);
 117         }
 118
 119
 120         static
 121         int C_WorkArea_work_area_handler(FL_OBJECT * ob, int event,
 122                                          FL_Coord, FL_Coord,
 123                                          int key, void * xev)
 124         {
 125                 return WorkArea::work_area_handler(ob, event,
 126                                                    0, 0, key, xev);
 127         }
 128
 129         static
 130         int C_WorkAreaEventCB(FL_FORM * form, void * xev) {
 131                 WorkArea * wa = static_cast<WorkArea*>(form->u_vdata);
 132                 return wa->event_cb(static_cast<XEvent*>(xev));
 133         }
 134 }
 135
 136
 137 WorkArea::WorkArea(int xpos, int ypos, int width, int height)
 138         : splash_(0), splash_text_(0), workareapixmap(0), painter_(*this)
 139 {
 140         fl_freeze_all_forms();
 141
 142         if (lyxerr.debugging(Debug::WORKAREA))
 143                 lyxerr << "Creating work area: +"
 144                        << xpos << '+' << ypos << ' '
 145                        << width << 'x' << height << endl;
 146         //
 147         FL_OBJECT * obj;
 148         int const bw = int(abs(fl_get_border_width()));
 149
 150         // a box
 151         if (lyxerr.debugging(Debug::WORKAREA))
 152                 lyxerr << "\tbackground box: +"
 153                        << xpos << '+' << ypos << ' '
 154                        << width - 15 << 'x' << height << endl;
 155         backgroundbox = obj = fl_add_box(FL_BORDER_BOX,
 156                                          xpos, ypos,
 157                                          width - 15,
 158                                          height,"");
 159         fl_set_object_resize(obj, FL_RESIZE_ALL);
 160         fl_set_object_gravity(obj, NorthWestGravity, SouthEastGravity);
 161
 162         // Add a splash screen to the centre of the work area
 163         string const splash_file = (lyxrc.show_banner) ?
 164                 LibFileSearch("images", "banner", "xpm") : string();
 165
 166         if (!splash_file.empty()) {
 167                 int const splash_w = 425;
 168                 int const splash_h = 290;
 169                 int const splash_x = xpos + (width - 15 - splash_w) / 2;
 170                 int const splash_y = ypos + (height - splash_h) / 2;
 171                 splash_ = obj =
 172                         fl_add_pixmapbutton(FL_NORMAL_BUTTON,
 173                                             splash_x, splash_y,
 174                                             splash_w, splash_h, "");
 175                 fl_set_pixmapbutton_file(obj, splash_file.c_str());
 176                 fl_set_pixmapbutton_focus_outline(obj, 3);
 177                 fl_set_object_boxtype(obj, FL_NO_BOX);
 178
 179                 int const text_x = splash_x + 260;
 180                 int const text_y = splash_y + 255;
 181                 splash_text_ = obj =
 182                         fl_add_text(FL_NORMAL_TEXT, text_x, text_y, 160, 16,
 183                                     lyx_version);
 184                 fl_set_object_lsize(obj, FL_NORMAL_SIZE);
 185                 fl_mapcolor(FL_FREE_COL2, 0x2b, 0x47, 0x82);
 186                 fl_mapcolor(FL_FREE_COL3, 0xe1, 0xd2, 0x9b);
 187                 fl_set_object_color(obj, FL_FREE_COL2, FL_FREE_COL2);
 188                 fl_set_object_lcol(obj, FL_FREE_COL3);
 189                 fl_set_object_lalign(obj, FL_ALIGN_LEFT|FL_ALIGN_INSIDE);
 190                 fl_set_object_lstyle(obj, FL_BOLD_STYLE);
 191         }
 192
 193         //
 194         // THE SCROLLBAR
 195         //
 196
 197         scrollbar = obj = fl_add_scrollbar(FL_VERT_SCROLLBAR,
 198                                            xpos + width - 15,
 199                                            ypos, 17, height, "");
 200         fl_set_object_boxtype(obj, FL_UP_BOX);
 201         fl_set_object_resize(obj, FL_RESIZE_ALL);
 202         fl_set_object_gravity(obj, NorthEastGravity, SouthEastGravity);
 203         obj->u_vdata = this;
 204         fl_set_object_callback(obj, C_WorkArea_scroll_cb, 0);
 205         setScrollbarBounds(0.0, 0.0);
 206
 207         ///
 208         /// The free object
 209
 210         // Create the workarea pixmap
 211         createPixmap(width - 15 - 2 * bw, height - 2 * bw);
 212
 213         // We add this object as late as possible to avoit problems
 214         // with drawing.
 215         if (lyxerr.debugging(Debug::WORKAREA))
 216                 lyxerr << "\tfree object: +"
 217                        << xpos + bw << '+' << ypos + bw << ' '
 218                        << width - 15 - 2 * bw << 'x'
 219                        << height - 2 * bw << endl;
 220
 221         work_area = obj = fl_add_free(FL_ALL_FREE,
 222                                       xpos + bw, ypos + bw,
 223                                       width - 15 - 2 * bw, // scrollbarwidth
 224                                       height - 2 * bw, "",
 225                                       C_WorkArea_work_area_handler);
 226         obj->wantkey = FL_KEY_ALL;
 227         obj->u_vdata = this; /* This is how we pass the WorkArea
 228                                 to the work_area_handler. */
 229         fl_set_object_boxtype(obj,FL_DOWN_BOX);
 230         fl_set_object_resize(obj, FL_RESIZE_ALL);
 231         fl_set_object_gravity(obj, NorthWestGravity, SouthEastGravity);
 232
 233         /// X selection hook - xforms gets it wrong
 234         fl_current_form->u_vdata = this;
 235         fl_register_raw_callback(fl_current_form, FL_ALL_EVENT, C_WorkAreaEventCB);
 236
 237         fl_unfreeze_all_forms();
 238 }
 239
 240
 241 WorkArea::~WorkArea()
 242 {
 243         if (workareapixmap)
 244                 XFreePixmap(fl_get_display(), workareapixmap);
 245 }
 246
 247
 248 void WorkArea::resize(int xpos, int ypos, int width, int height)
 249 {
 250         fl_freeze_all_forms();
 251
 252         int const bw = int(abs(fl_get_border_width()));
 253
 254         // a box
 255         fl_set_object_geometry(backgroundbox, xpos, ypos, width - 15, height);
 256
 257         //
 258         // THE SCROLLBAR
 259         //
 260         fl_set_object_geometry(scrollbar, xpos + width - 15,
 261                                ypos, 17, height);
 262
 263         // Create the workarea pixmap
 264         createPixmap(width - 15 - 2 * bw, height - 2 * bw);
 265
 266         // the free object
 267         fl_set_object_geometry(work_area, xpos + bw, ypos + bw,
 268                                width - 15 - 2 * bw,
 269                                height - 2 * bw);
 270
 271         fl_unfreeze_all_forms();
 272 }
 273
 274
 275 namespace {
 276 void destroy_object(FL_OBJECT * obj)
 277 {
 278         if (!obj)
 279                 return;
 280
 281         if (obj->visible) {
 282                 fl_hide_object(obj);
 283         }
 284         fl_delete_object(obj);
 285         fl_free_object(obj);
 286 }
 287 } // namespace anon
 288
 289
 290 void WorkArea::createPixmap(int width, int height)
 291 {
 292         // Three calls to createPixmap are needed to draw the initial view
 293         // of LyX. Any more and the splash is destroyed.
 294         static int counter = 0;
 295         if (++counter == 4) {
 296                 destroy_object(splash_);
 297                 splash_ = 0;
 298                 destroy_object(splash_text_);
 299                 splash_text_ = 0;
 300         }
 301
 302         static int cur_width = -1;
 303         static int cur_height = -1;
 304
 305         if (cur_width == width && cur_height == height && workareapixmap)
 306                 return;
 307
 308         cur_width = width;
 309         cur_height = height;
 310
 311         if (workareapixmap)
 312                 XFreePixmap(fl_get_display(), workareapixmap);
 313
 314         if (lyxerr.debugging(Debug::WORKAREA))
 315                 lyxerr << "Creating pixmap ("
 316                        << width << 'x' << height << ")" << endl;
 317
 318         workareapixmap = XCreatePixmap(fl_get_display(),
 319                                        RootWindow(fl_get_display(), 0),
 320                                        width,
 321                                        height,
 322                                        fl_get_visual_depth());
 323         if (lyxerr.debugging(Debug::WORKAREA))
 324                 lyxerr << "\tpixmap=" << workareapixmap << endl;
 325 }
 326
 327
 328 void WorkArea::greyOut() const
 329 {
 330         if (!splash_) {
 331                 fl_winset(FL_ObjWin(work_area));
 332                 fl_rectangle(1, work_area->x, work_area->y,
 333                              work_area->w, work_area->h, FL_GRAY63);
 334         }
 335 }
 336
 337
 338 void WorkArea::setFocus() const
 339 {
 340         fl_set_focus_object(work_area->form, work_area);
 341 }
 342
 343
 344 void WorkArea::setScrollbar(double pos, double length_fraction) const
 345 {
 346         fl_set_scrollbar_value(scrollbar, pos);
 347         fl_set_scrollbar_size(scrollbar, scrollbar->h * length_fraction);
 348 }
 349
 350
 351 void WorkArea::setScrollbarBounds(double l1, double l2) const
 352 {
 353         fl_set_scrollbar_bounds(scrollbar, l1, l2);
 354 }
 355
 356
 357 void WorkArea::setScrollbarIncrements(double inc) const
 358 {
 359         fl_set_scrollbar_increment(scrollbar, work_area->h - inc, inc);
 360 }
 361
 362
 363 // Callback for scrollbar slider
 364 void WorkArea::scroll_cb(FL_OBJECT * ob, long)
 365 {
 366         WorkArea * area = static_cast<WorkArea*>(ob->u_vdata);
 367         // If we really want the accellerating scroll we can do that
 368         // from here. IMHO that is a waste of effort since we already
 369         // have other ways to move fast around in the document. (Lgb)
 370         area->scrollCB(fl_get_scrollbar_value(ob));
 371         waitForX();
 372 }
 373
 374
 375 int WorkArea::work_area_handler(FL_OBJECT * ob, int event,
 376                                 FL_Coord, FL_Coord ,
 377                                 int key, void * xev)
 378 {
 379         static int x_old = -1;
 380         static int y_old = -1;
 381         static long scrollbar_value_old = -1;
 382
 383         XEvent * ev = static_cast<XEvent*>(xev);
 384         WorkArea * area = static_cast<WorkArea*>(ob->u_vdata);
 385
 386         if (!area) return 1;
 387
 388         switch (event) {
 389         case FL_DRAW:
 390                 if (!area->work_area ||
 391                     !area->work_area->form->visible)
 392                         return 1;
 393                 lyxerr[Debug::WORKAREA] << "Workarea event: DRAW" << endl;
 394                 area->createPixmap(area->workWidth(), area->height());
 395                 area->workAreaExpose();
 396                 break;
 397         case FL_PUSH:
 398                 if (!ev || ev->xbutton.button == 0) break;
 399                 // Should really have used xbutton.state
 400                 lyxerr[Debug::WORKAREA] << "Workarea event: PUSH" << endl;
 401                 area->workAreaButtonPress(ev->xbutton.x - ob->x,
 402                                           ev->xbutton.y - ob->y,
 403                                           x_button_state(ev->xbutton.button));
 404                 break;
 405         case FL_RELEASE:
 406                 if (!ev || ev->xbutton.button == 0) break;
 407                 // Should really have used xbutton.state
 408                 lyxerr[Debug::WORKAREA] << "Workarea event: RELEASE" << endl;
 409                 area->workAreaButtonRelease(ev->xbutton.x - ob->x,
 410                                       ev->xbutton.y - ob->y,
 411                                       x_button_state(ev->xbutton.button));
 412                 break;
 413 #if FL_VERSION < 1 && FL_REVISION < 89
 414         case FL_MOUSE:
 415 #else
 416         case FL_DRAG:
 417 #endif
 418                 if (!ev || ! area->scrollbar) break;
 419                 if (ev->xmotion.x != x_old ||
 420                     ev->xmotion.y != y_old ||
 421                     fl_get_scrollbar_value(area->scrollbar) != scrollbar_value_old
 422                         ) {
 423                         lyxerr[Debug::WORKAREA] << "Workarea event: MOUSE" << endl;
 424                         area->workAreaMotionNotify(ev->xmotion.x - ob->x,
 425                                              ev->xmotion.y - ob->y,
 426                                              x_motion_state(ev->xbutton.state));
 427                 }
 428                 break;
 429 #if FL_VERSION < 1 && FL_REVISION < 89
 430         case FL_KEYBOARD:
 431 #else
 432         case FL_KEYPRESS:
 433 #endif
 434         {
 435                 lyxerr[Debug::WORKAREA] << "Workarea event: KEYBOARD" << endl;
 436
 437                 KeySym keysym = 0;
 438                 char dummy[1];
 439                 XKeyEvent * xke = reinterpret_cast<XKeyEvent *>(ev);
 440 #if FL_VERSION < 1 && (FL_REVISION < 89 || (FL_REVISION == 89 && FL_FIXLEVEL < 5))
 441                 // XForms < 0.89.5 does not have compose support
 442                 // so we are using our own compose support
 443                 LyXLookupString(ev, dummy, 1, &keysym);
 444 #else
 445                 XLookupString(xke, dummy, 1, &keysym, 0);
 446 //              int num_keys = XLookupString(xke, dummy, 10, &keysym, &xcs);
 447 //              lyxerr << "We have " << num_keys << " keys in the returned buffer" << endl;
 448 //              lyxerr << "Our dummy string is " << dummy << endl;
 449 #endif
 450                 if (lyxerr.debugging(Debug::KEY)) {
 451                         char const * tmp = XKeysymToString(key);
 452                         char const * tmp2 = XKeysymToString(keysym);
 453                         string const stm = (tmp ? tmp : "");
 454                         string const stm2 = (tmp2 ? tmp2 : "");
 455
 456                         lyxerr[Debug::KEY] << "WorkArea: Key is `" << stm << "' ["
 457                                << key << "]" << endl;
 458                         lyxerr[Debug::KEY] << "WorkArea: Keysym is `" << stm2 << "' ["
 459                                << keysym << "]" << endl;
 460                 }
 461
 462 #if FL_VERSION < 1 && (FL_REVISION < 89 || (FL_REVISION == 89 && FL_FIXLEVEL < 5))
 463                 if (keysym == NoSymbol) {
 464                         lyxerr[Debug::KEY]
 465                                 << "Empty kdb action (probably composing)"
 466                                 << endl;
 467                         break;
 468                 }
 469                 KeySym ret_key = keysym;
 470 #else
 471                 // Note that we need this handling because of a bug
 472                 // in XForms 0.89, if this bug is resolved in the way I hope
 473                 // we can just use the keysym directly with out looking
 474                 // at key at all. (Lgb)
 475                 KeySym ret_key = 0;
 476                 if (!key) {
 477                         // We migth have to add more keysyms here also,
 478                         // we will do that as the issues arise. (Lgb)
 479                         if (keysym == XK_space) {
 480                                 ret_key = keysym;
 481                                 lyxerr[Debug::KEY] << "Using keysym [A]"
 482                                                    << endl;
 483                         } else
 484                                 break;
 485                 } else {
 486                         // It seems that this was a bit optimistic...
 487                         // With this hacking things seems to be better (Lgb)
 488                         //if (!iscntrl(key)) {
 489                         //      ret_key = key;
 490                         //      lyxerr[Debug::KEY]
 491                         //              << "Using key [B]\n"
 492                         //              << "Uchar["
 493                         //              << static_cast<unsigned char>(key)
 494                         //              << endl;
 495                         //} else {
 496                                 ret_key = (keysym ? keysym : key);
 497                                 lyxerr[Debug::KEY] << "Using keysym [B]"
 498                                                    << endl;
 499                                 //}
 500                 }
 501
 502 #endif
 503                 unsigned int const ret_state = xke->state;
 504
 505                 // If you have a better way to handle "wild-output" of
 506                 // characters after the key has been released than the one
 507                 // below, please contact me. (Lgb)
 508                 static Time last_time_pressed;
 509                 static unsigned int last_key_pressed;
 510                 static unsigned int last_state_pressed;
 511                 lyxerr[Debug::KEY] << "Workarea Diff: "
 512                                    << xke->time - last_time_pressed
 513                                    << endl;
 514                 if (xke->time - last_time_pressed < 25 // should perhaps be tunable
 515                     && ret_state == last_state_pressed
 516                     && xke->keycode == last_key_pressed) {
 517                         lyxerr[Debug::KEY]
 518                                 << "Workarea: Purging X events." << endl;
 519                         //lyxerr << "Workarea Events: "
 520                         //       << XEventsQueued(fl_get_display(), QueuedAlready)
 521                         //       << endl;
 522                         if (XEventsQueued(fl_get_display(), QueuedAlready) > 0)
 523                                 XSync(fl_get_display(), 1);
 524                         // This purge make f.ex. scrolling stop immidiatly when
 525                         // releasing the PageDown button. The question is if
 526                         // this purging of XEvents can cause any harm...
 527                         // after some testing I can see no problems, but
 528                         // I'd like other reports too.
 529                         break;
 530                 }
 531                 last_time_pressed = xke->time;
 532                 last_key_pressed = xke->keycode;
 533                 last_state_pressed = ret_state;
 534
 535                 area->workAreaKeyPress(ret_key, x_key_state(ret_state));
 536         }
 537         break;
 538
 539 #if FL_VERSION > 0 || FL_REVISION >= 89
 540         case FL_KEYRELEASE:
 541                 lyxerr[Debug::WORKAREA] << "Workarea event: KEYRELEASE" << endl;
 542                 break;
 543 #endif
 544
 545         case FL_FOCUS:
 546                 lyxerr[Debug::WORKAREA] << "Workarea event: FOCUS" << endl;
 547                 area->workAreaFocus();
 548                 break;
 549         case FL_UNFOCUS:
 550                 lyxerr[Debug::WORKAREA] << "Workarea event: UNFOCUS" << endl;
 551                 area->workAreaUnfocus();
 552                 break;
 553         case FL_ENTER:
 554                 lyxerr[Debug::WORKAREA] << "Workarea event: ENTER" << endl;
 555                 area->workAreaEnter();
 556                 break;
 557         case FL_LEAVE:
 558                 lyxerr[Debug::WORKAREA] << "Workarea event: LEAVE" << endl;
 559                 area->workAreaLeave();
 560                 break;
 561         case FL_DBLCLICK:
 562                 if (!ev) break;
 563                 lyxerr[Debug::WORKAREA] << "Workarea event: DBLCLICK" << endl;
 564                 area->workAreaDoubleClick(ev->xbutton.x - ob->x,
 565                                           ev->xbutton.y - ob->y,
 566                                           x_button_state(ev->xbutton.button));
 567                 break;
 568         case FL_TRPLCLICK:
 569                 if (!ev) break;
 570                 lyxerr[Debug::WORKAREA] << "Workarea event: TRPLCLICK" << endl;
 571                 area->workAreaTripleClick(ev->xbutton.x - ob->x,
 572                                           ev->xbutton.y - ob->y,
 573                                           x_button_state(ev->xbutton.button));
 574                 break;
 575         case FL_OTHER:
 576                 if (!ev) break;
 577                 lyxerr[Debug::WORKAREA] << "Workarea event: OTHER" << endl;
 578                 break;
 579         }
 580
 581         return 1;
 582 }
 583
 584
 585 namespace {
 586
 587 string clipboard_selection;
 588 bool clipboard_read = false;
 589
 590 extern "C" {
 591
 592         static
 593         int request_clipboard_cb(FL_OBJECT * /*ob*/, long /*type*/,
 594                                  void const * data, long size)
 595         {
 596                 clipboard_selection.erase();
 597
 598                 if (size > 0)
 599                         clipboard_selection.reserve(size);
 600                 for (int i = 0; i < size; ++i)
 601                         clipboard_selection +=
 602                                 static_cast<char const *>(data)[i];
 603                 clipboard_read = true;
 604                 return 0;
 605         }
 606
 607 }
 608
 609 } // namespace anon
 610
 611
 612 int WorkArea::event_cb(XEvent * xev)
 613 {
 614         int ret = 0;
 615         switch (xev->type) {
 616                 case SelectionRequest:
 617                         lyxerr[Debug::GUI] << "X requested selection." << endl;
 618                         selectionRequested();
 619                         break;
 620                 case SelectionClear:
 621                         lyxerr[Debug::GUI] << "Lost selection." << endl;
 622                         selectionLost();
 623                         break;
 624         }
 625         return ret;
 626 }
 627
 628
 629 void WorkArea::haveSelection(bool yes) const
 630 {
 631         if (!yes) {
 632                 XSetSelectionOwner(fl_get_display(), XA_PRIMARY, None, CurrentTime);
 633                 return;
 634         }
 635
 636         XSetSelectionOwner(fl_get_display(), XA_PRIMARY, FL_ObjWin(work_area), CurrentTime);
 637 }
 638
 639
 640 string const WorkArea::getClipboard() const
 641 {
 642         clipboard_read = false;
 643
 644         if (fl_request_clipboard(work_area, 0, request_clipboard_cb) == -1)
 645                 return string();
 646
 647         XEvent ev;
 648
 649         while (!clipboard_read) {
 650                 if (fl_check_forms() == FL_EVENT) {
 651                         fl_XNextEvent(&ev);
 652                         lyxerr << "Received unhandled X11 event" << endl;
 653                         lyxerr << "Type: 0x" << hex << ev.xany.type <<
 654                                 " Target: 0x" << hex << ev.xany.window << endl;
 655                 }
 656         }
 657         return clipboard_selection;
 658 }
 659
 660
 661 void WorkArea::putClipboard(string const & s) const
 662 {
 663         static string hold;
 664         hold = s;
 665
 666         fl_stuff_clipboard(work_area, 0, hold.data(), hold.size(), 0);
 667 }