cinelerra-5.1/cinelerra/preferencesthread.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2011 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "aboutprefs.h"
  23 #include "appearanceprefs.h"
  24 #include "asset.h"
  25 #include "audiodevice.inc"
  26 #include "bcsignals.h"
  27 #include "bctrace.h"
  28 #include "cache.h"
  29 #include "cplayback.h"
  30 #include "cwindow.h"
  31 #include "cwindowgui.h"
  32 #include "bchash.h"
  33 #include "edl.h"
  34 #include "edlsession.h"
  35 #include "filesystem.h"
  36 #include "fonts.h"
  37 #include "interfaceprefs.h"
  38 #include "keys.h"
  39 #include "language.h"
  40 #include "levelwindow.h"
  41 #include "levelwindowgui.h"
  42 #include "mainclock.h"
  43 #include "mainerror.h"
  44 #include "mbuttons.h"
  45 #include "meterpanel.h"
  46 #include "mutex.h"
  47 #include "mwindow.h"
  48 #include "mwindowgui.h"
  49 #include "patchbay.h"
  50 #include "performanceprefs.h"
  51 #include "playbackengine.h"
  52 #include "playbackprefs.h"
  53 #include "preferences.h"
  54 #include "recordprefs.h"
  55 #include "shbtnprefs.h"
  56 #include "theme.h"
  57 #include "trackcanvas.h"
  58 #include "transportque.h"
  59 #include "vwindow.h"
  60 #include "vwindowgui.h"
  61
  62 #include <string.h>
  63
  64
  65
  66 #define WIDTH 800
  67 #define HEIGHT 700
  68
  69
  70 PreferencesMenuitem::PreferencesMenuitem(MWindow *mwindow)
  71  : BC_MenuItem(_("Preferences..."), _("Shift-P"), 'P')
  72 {
  73         this->mwindow = mwindow;
  74
  75         set_shift(1);
  76         thread = new PreferencesThread(mwindow);
  77 }
  78
  79 PreferencesMenuitem::~PreferencesMenuitem()
  80 {
  81         delete thread;
  82 }
  83
  84
  85 int PreferencesMenuitem::handle_event()
  86 {
  87         mwindow->gui->unlock_window();
  88         thread->start();
  89         mwindow->gui->lock_window("PreferencesMenuitem::handle_event");
  90         return 1;
  91 }
  92
  93
  94
  95
  96 PreferencesThread::PreferencesThread(MWindow *mwindow)
  97  : BC_DialogThread()
  98 {
  99         this->mwindow = mwindow;
 100         window = 0;
 101         thread_running = 0;
 102 }
 103
 104 PreferencesThread::~PreferencesThread()
 105 {
 106         close_window();
 107 }
 108
 109 BC_Window* PreferencesThread::new_gui()
 110 {
 111
 112         preferences = new Preferences;
 113         edl = new EDL;
 114         edl->create_objects();
 115         current_dialog = mwindow->defaults->get("DEFAULTPREF", 0);
 116         preferences->copy_from(mwindow->preferences);
 117         edl->copy_session(mwindow->edl);
 118         redraw_indexes = 0;
 119         redraw_meters = 0;
 120         redraw_times = 0;
 121         redraw_overlays = 0;
 122         close_assets = 0;
 123         reload_plugins = 0;
 124         //int need_new_indexes = 0;
 125         rerender = 0;
 126
 127         mwindow->gui->lock_window("NewThread::new_gui");
 128         int scr_x = mwindow->gui->get_screen_x(0, -1);
 129         int scr_w = mwindow->gui->get_screen_w(0, -1);
 130         int scr_h = mwindow->gui->get_screen_h(0, -1);
 131
 132         int w = WIDTH, h = HEIGHT;
 133         int min_w = mwindow->theme->preferencescategory_x;
 134         for(int i = 0; i < CATEGORIES; i++) {
 135                 min_w += PreferencesButton::calculate_w(mwindow->gui, category_to_text(i)) -
 136                         mwindow->theme->preferences_category_overlap;
 137         }
 138         if( w < min_w ) w = min_w;
 139         int x = scr_x + scr_w / 2 - w / 2;
 140         int y = scr_h / 2 - h / 2;
 141
 142         window = new PreferencesWindow(mwindow, this, x, y, w, h);
 143         window->create_objects();
 144         mwindow->gui->unlock_window();
 145
 146         thread_running = 1;
 147         return window;
 148 }
 149
 150 void PreferencesThread::handle_close_event(int result)
 151 {
 152         thread_running = 0;
 153         if(!result)
 154         {
 155                 apply_settings();
 156                 mwindow->save_defaults();
 157         }
 158
 159         window = 0;
 160         delete preferences;
 161         edl->Garbage::remove_user();
 162         preferences = 0;
 163         edl = 0;
 164
 165         mwindow->defaults->update("DEFAULTPREF", current_dialog);
 166         if( mwindow->restart() )
 167                 mwindow->gui->set_done(0);
 168 }
 169
 170
 171
 172 int PreferencesThread::update_framerate()
 173 {
 174         if(thread_running)
 175         {
 176                 lock_gui("PreferencesThread::update_framerate");
 177                 PreferencesWindow *window = (PreferencesWindow*)get_gui();
 178                 if(window) window->update_framerate();
 179                 unlock_gui();
 180         }
 181         return 0;
 182 }
 183
 184
 185 void PreferencesThread::update_rates()
 186 {
 187         if(thread_running)
 188         {
 189                 lock_gui("PreferencesThread::update_framerate");
 190                 PreferencesWindow *window = (PreferencesWindow*)get_gui();
 191                 if(window) window->update_rates();
 192                 unlock_gui();
 193         }
 194 }
 195
 196 int PreferencesThread::apply_settings()
 197 {
 198 // Compare sessions
 199
 200         PlaybackConfig *this_playback_config = edl->session->playback_config;
 201         AudioOutConfig *this_aconfig = this_playback_config->aconfig;
 202         VideoOutConfig *this_vconfig = this_playback_config->vconfig;
 203         PlaybackConfig *playback_config = mwindow->edl->session->playback_config;
 204         AudioOutConfig *aconfig = playback_config->aconfig;
 205         VideoOutConfig *vconfig = playback_config->vconfig;
 206
 207         rerender =
 208                 edl->session->need_rerender(mwindow->edl->session) ||
 209                 (preferences->force_uniprocessor != mwindow->preferences->force_uniprocessor) ||
 210                 this_playback_config->active_config != playback_config->active_config ||
 211                 (*this_aconfig != *aconfig) || (*this_vconfig != *vconfig) ||
 212                 !preferences->brender_asset->equivalent(*mwindow->preferences->brender_asset, 0, 1, edl);
 213
 214         if( preferences->yuv_color_space != mwindow->preferences->yuv_color_space ||
 215             preferences->yuv_color_range != mwindow->preferences->yuv_color_range ) {
 216                 YUV::yuv.yuv_set_colors(
 217                         preferences->yuv_color_space,
 218                         preferences->yuv_color_range);
 219                 rerender = 1;
 220         }
 221
 222         if( preferences->highlight_inverse != mwindow->preferences->highlight_inverse ) {
 223                 mwindow->gui->lock_window("PreferencesThread::apply_settings 0");
 224                 mwindow->gui->hide_cursor(0);
 225                 mwindow->gui->unlock_window();
 226                 redraw_overlays = 1;
 227         }
 228
 229         if( strcmp(preferences->theme, mwindow->preferences->theme) != 0 )
 230                 mwindow->restart_status = -1; // reload, need new bcresources
 231         if( strcmp(preferences->plugin_icons, mwindow->preferences->plugin_icons) != 0 )
 232                 mwindow->restart_status = -1;
 233
 234         mwindow->edl->copy_session(edl, 1);
 235         mwindow->preferences->copy_from(preferences);
 236         mwindow->init_brender();
 237
 238         BC_Signals::set_catch_segv(mwindow->preferences->trap_sigsegv);
 239         BC_Signals::set_catch_intr(mwindow->preferences->trap_sigintr);
 240         BC_WindowBase::get_resources()->popupmenu_btnup = mwindow->preferences->popupmenu_btnup;
 241         BC_WindowBase::get_resources()->grab_input_focus = mwindow->preferences->grab_input_focus;
 242         BC_WindowBase::get_resources()->textbox_focus_policy = mwindow->preferences->textbox_focus_policy;
 243         if( mwindow->preferences->trap_sigsegv || mwindow->preferences->trap_sigintr ) {
 244                 BC_Trace::enable_locks();
 245         }
 246         else {
 247                 BC_Trace::disable_locks();
 248         }
 249
 250         mwindow->reset_android_remote();
 251         int ffmpeg_early_probe = mwindow->preferences->get_file_probe_armed("FFPMEG_Early");
 252         mwindow->gui->ffmpeg_toggle->update(ffmpeg_early_probe);
 253         mwindow->gui->ffmpeg_toggle->set_tooltip(ffmpeg_early_probe ?
 254                 FFMPEG_EARLY_TIP : FFMPEG_LATE_TIP);
 255         mwindow->gui->mainshbtns->load(mwindow->preferences);
 256
 257 //edl->session->recording_format->dump();
 258 //mwindow->edl->session->recording_format->dump();
 259
 260         if(((mwindow->edl->session->output_w % 4) ||
 261                 (mwindow->edl->session->output_h % 4)) &&
 262                 mwindow->edl->session->playback_config->vconfig->driver == PLAYBACK_X11_GL)
 263         {
 264                 MainError::show_error(
 265                         _("This project's dimensions are not multiples of 4 so\n"
 266                         "it can't be rendered by OpenGL."));
 267         }
 268
 269
 270         if(redraw_meters)
 271         {
 272                 mwindow->cwindow->gui->lock_window("PreferencesThread::apply_settings");
 273                 mwindow->cwindow->gui->meters->change_format(edl->session->meter_format,
 274                         edl->session->min_meter_db,
 275                         edl->session->max_meter_db);
 276                 mwindow->cwindow->gui->unlock_window();
 277
 278
 279
 280                 for(int i = 0; i < mwindow->vwindows.size(); i++) {
 281                         VWindow *vwindow = mwindow->vwindows.get(i);
 282                         if( !vwindow->is_running() ) continue;
 283                         vwindow->gui->lock_window("PreferencesThread::apply_settings");
 284                         vwindow->gui->meters->change_format(edl->session->meter_format,
 285                                 edl->session->min_meter_db,
 286                                 edl->session->max_meter_db);
 287                         vwindow->gui->unlock_window();
 288
 289                 }
 290
 291
 292                 mwindow->gui->lock_window("PreferencesThread::apply_settings 1");
 293                 mwindow->gui->set_meter_format(edl->session->meter_format,
 294                         edl->session->min_meter_db,
 295                         edl->session->max_meter_db);
 296                 mwindow->gui->unlock_window();
 297
 298
 299
 300                 mwindow->lwindow->gui->lock_window("PreferencesThread::apply_settings");
 301                 mwindow->lwindow->gui->panel->change_format(edl->session->meter_format,
 302                         edl->session->min_meter_db,
 303                         edl->session->max_meter_db);
 304                 mwindow->lwindow->gui->unlock_window();
 305         }
 306
 307         if(redraw_overlays)
 308         {
 309                 mwindow->gui->lock_window("PreferencesThread::apply_settings 2");
 310                 mwindow->gui->show_cursor(0);
 311                 mwindow->gui->draw_overlays(1);
 312                 mwindow->gui->unlock_window();
 313         }
 314
 315         if(redraw_times)
 316         {
 317                 mwindow->gui->lock_window("PreferencesThread::apply_settings 3");
 318                 mwindow->gui->update(0, 0, 1, 0, 0, 1, 0);
 319                 mwindow->gui->redraw_time_dependancies();
 320                 mwindow->gui->unlock_window();
 321         }
 322
 323         if(rerender)
 324         {
 325 //printf("PreferencesThread::apply_settings 1\n");
 326 // This doesn't stop and restart, only reloads the assets before
 327 // the next play command.
 328                 mwindow->cwindow->refresh_frame(CHANGE_ALL, mwindow->edl);
 329 //printf("PreferencesThread::apply_settings 10\n");
 330         }
 331
 332         if(redraw_times || redraw_overlays)
 333         {
 334                 mwindow->gui->lock_window("PreferencesThread::apply_settings 4");
 335                 mwindow->gui->flush();
 336                 mwindow->gui->unlock_window();
 337         }
 338
 339         return 0;
 340 }
 341
 342 const char* PreferencesThread::category_to_text(int category)
 343 {
 344         PlaybackConfig *playback_config = edl->session->playback_config;
 345         switch(category)
 346         {
 347                 case PLAYBACK_A:
 348                         return playback_config->active_config==0 ?
 349                                  _("*Playback A") : _("Playback A");
 350                 case PLAYBACK_B:
 351                         return playback_config->active_config==1 ?
 352                                  _("*Playback B") : _("Playback B");
 353                 case RECORD:
 354                         return _("Recording");
 355                 case PERFORMANCE:
 356                         return _("Performance");
 357                 case INTERFACE:
 358                         return _("Interface");
 359                 case APPEARANCE:
 360                         return _("Appearance");
 361                 case ABOUT:
 362                         return _("About");
 363         }
 364         return "";
 365 }
 366
 367 int PreferencesThread::text_to_category(const char *category)
 368 {
 369 SET_TRACE
 370         int min_result = -1, result, result_num = 0;
 371         for(int i = 0; i < CATEGORIES; i++)
 372         {
 373                 result = labs(strcmp(category_to_text(i), category));
 374                 if(result < min_result || min_result < 0)
 375                 {
 376                         min_result = result;
 377                         result_num = i;
 378                 }
 379         }
 380 SET_TRACE
 381         return result_num;
 382 }
 383
 384
 385
 386
 387
 388
 389
 390
 391 PreferencesWindow::PreferencesWindow(MWindow *mwindow,
 392         PreferencesThread *thread, int x, int y, int w, int h)
 393  : BC_Window(_(PROGRAM_NAME ": Preferences"), x,y, w,h,w,h, 1)
 394 {
 395         this->mwindow = mwindow;
 396         this->thread = thread;
 397         dialog = 0;
 398         category = 0;
 399 }
 400
 401 PreferencesWindow::~PreferencesWindow()
 402 {
 403         lock_window("PreferencesWindow::~PreferencesWindow");
 404         delete category;
 405
 406
 407         if(dialog) delete dialog;
 408
 409
 410         for(int i = 0; i < categories.total; i++)
 411                 delete categories.values[i];
 412         unlock_window();
 413 }
 414
 415 void PreferencesWindow::create_objects()
 416 {
 417         BC_Button *button;
 418
 419         lock_window("PreferencesWindow::create_objects");
 420         set_icon(mwindow->theme->get_image("mwindow_icon"));
 421         mwindow->theme->draw_preferences_bg(this);
 422         flash();
 423
 424         int x = mwindow->theme->preferencescategory_x;
 425         int y = mwindow->theme->preferencescategory_y;
 426         for(int i = 0; i < CATEGORIES; i++)
 427         {
 428                 add_subwindow(category_button[i] = new PreferencesButton(mwindow,
 429                         thread, x, y, i, thread->category_to_text(i),
 430                         (i == thread->current_dialog) ?
 431                                 mwindow->theme->get_image_set("category_button_checked") :
 432                                 mwindow->theme->get_image_set("category_button")));
 433                 x += category_button[i]->get_w() -
 434                         mwindow->theme->preferences_category_overlap;
 435         }
 436
 437
 438 //      for(int i = 0; i < CATEGORIES; i++)
 439 //              categories.append(new BC_ListBoxItem(thread->category_to_text(i)));
 440 //      category = new PreferencesCategory(mwindow,
 441 //              thread,
 442 //              mwindow->theme->preferencescategory_x,
 443 //              mwindow->theme->preferencescategory_y);
 444 //      category->create_objects();
 445
 446
 447         add_subwindow(button = new PreferencesOK(mwindow, thread));
 448         add_subwindow(new PreferencesApply(mwindow, thread));
 449         add_subwindow(new PreferencesCancel(mwindow, thread));
 450
 451         set_current_dialog(thread->current_dialog);
 452
 453         show_window();
 454         unlock_window();
 455 }
 456
 457 int PreferencesWindow::update_framerate()
 458 {
 459         lock_window("PreferencesWindow::update_framerate");
 460         if(thread->current_dialog < PreferencesThread::RECORD)
 461         {
 462                 dialog->draw_framerate(1);
 463 //              flash();
 464         }
 465         unlock_window();
 466         return 0;
 467 }
 468
 469
 470 void PreferencesWindow::update_rates()
 471 {
 472         lock_window("PreferencesWindow::update_rates");
 473         if(thread->current_dialog == PreferencesThread::PERFORMANCE)
 474         {
 475                 dialog->update_rates();
 476         }
 477         unlock_window();
 478 }
 479
 480
 481 int PreferencesWindow::set_current_dialog(int number)
 482 {
 483         if(dialog) delete dialog;
 484         dialog = 0;
 485         thread->current_dialog = number;
 486
 487 //PRINT_TRACE
 488         PreferencesDialog *dialog2 = dialog;
 489         dialog = 0;
 490 //PRINT_TRACE
 491
 492 // Redraw category buttons
 493         for(int i = 0; i < CATEGORIES; i++)
 494         {
 495                 if(i == number)
 496                 {
 497                         category_button[i]->set_images(
 498                                 mwindow->theme->get_image_set("category_button_checked"));
 499                 }
 500                 else
 501                 {
 502                         category_button[i]->set_images(
 503                                 mwindow->theme->get_image_set("category_button"));
 504                 }
 505                 category_button[i]->draw_face(0);
 506
 507 // Copy face to background for next button's overlap.
 508 // Still can't do state changes right.
 509         }
 510
 511
 512 //PRINT_TRACE
 513         PlaybackConfig *playback_config = thread->edl->session->playback_config;
 514         switch(number)
 515         {
 516                 case PreferencesThread::PLAYBACK_A:
 517                 case PreferencesThread::PLAYBACK_B:
 518                         playback_config->load_defaults(mwindow->defaults,
 519                                 number == PreferencesThread::PLAYBACK_A ? 0 : 1);
 520                         add_subwindow(dialog = new PlaybackPrefs(mwindow, this, number));
 521                         break;
 522
 523                 case PreferencesThread::RECORD:
 524                         add_subwindow(dialog = new RecordPrefs(mwindow, this));
 525                         break;
 526
 527                 case PreferencesThread::PERFORMANCE:
 528                         add_subwindow(dialog = new PerformancePrefs(mwindow, this));
 529                         break;
 530
 531                 case PreferencesThread::INTERFACE:
 532                         add_subwindow(dialog = new InterfacePrefs(mwindow, this));
 533                         break;
 534
 535                 case PreferencesThread::APPEARANCE:
 536                         add_subwindow(dialog = new AppearancePrefs(mwindow, this));
 537                         break;
 538
 539                 case PreferencesThread::ABOUT:
 540                         add_subwindow(dialog = new AboutPrefs(mwindow, this));
 541                         break;
 542         }
 543
 544 //PRINT_TRACE
 545         if(dialog)
 546         {
 547                 dialog->draw_top_background(this, 0, 0, dialog->get_w(), dialog->get_h());
 548 //printf("PreferencesWindow::set_current_dialog %d\n", __LINE__);
 549                 dialog->create_objects();
 550 //printf("PreferencesWindow::set_current_dialog %d\n", __LINE__);
 551                 dialog->lower_window();
 552                 dialog->show_window(0);
 553         }
 554
 555         if(dialog2)
 556         {
 557                 dialog2->hide_window(0);
 558                 delete dialog2;
 559         }
 560
 561         return 0;
 562 }
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574 PreferencesButton::PreferencesButton(MWindow *mwindow,
 575         PreferencesThread *thread,
 576         int x,
 577         int y,
 578         int category,
 579         const char *text,
 580         VFrame **images)
 581  : BC_GenericButton(x, y, text, images)
 582 {
 583         this->mwindow = mwindow;
 584         this->thread = thread;
 585         this->category = category;
 586 }
 587
 588 int PreferencesButton::handle_event()
 589 {
 590         thread->window->set_current_dialog(category);
 591         return 1;
 592 }
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602 PreferencesDialog::PreferencesDialog(MWindow *mwindow,
 603         PreferencesWindow *pwindow)
 604  : BC_SubWindow(10,
 605         40,
 606         pwindow->get_w() - 20,
 607         pwindow->get_h() - BC_GenericButton::calculate_h() - 10 - 40)
 608 {
 609         this->pwindow = pwindow;
 610         this->mwindow = mwindow;
 611         preferences = pwindow->thread->preferences;
 612 }
 613
 614 PreferencesDialog::~PreferencesDialog()
 615 {
 616 }
 617
 618 // ============================== category window
 619
 620
 621
 622
 623 PreferencesApply::PreferencesApply(MWindow *mwindow, PreferencesThread *thread)
 624  : BC_GenericButton(thread->window->get_w() / 2 - BC_GenericButton::calculate_w(thread->window, _("Apply")) / 2,
 625         thread->window->get_h() - BC_GenericButton::calculate_h() - 10,
 626         _("Apply"))
 627 {
 628         this->mwindow = mwindow;
 629         this->thread = thread;
 630 }
 631 int PreferencesApply::handle_event()
 632 {
 633         thread->apply_settings();
 634         return 1;
 635 }
 636 int PreferencesApply::resize_event(int w, int h)
 637 {
 638         reposition_window(w/2 - get_w()/2, h-get_h()-10);
 639         return 1;
 640 }
 641
 642
 643
 644
 645 PreferencesOK::PreferencesOK(MWindow *mwindow, PreferencesThread *thread)
 646  : BC_GenericButton(10,
 647         thread->window->get_h() - BC_GenericButton::calculate_h() - 10,
 648         _("OK"))
 649 {
 650         this->mwindow = mwindow;
 651         this->thread = thread;
 652 }
 653 int PreferencesOK::keypress_event()
 654 {
 655         if(get_keypress() == RETURN)
 656         {
 657                 thread->window->set_done(0);
 658                 return 1;
 659         }
 660         return 0;
 661 }
 662 int PreferencesOK::handle_event()
 663 {
 664         thread->window->set_done(0);
 665         return 1;
 666 }
 667 int PreferencesOK::resize_event(int w, int h)
 668 {
 669         reposition_window(10, h-get_h()-10);
 670         return 1;
 671 }
 672
 673
 674
 675 PreferencesCancel::PreferencesCancel(MWindow *mwindow, PreferencesThread *thread)
 676  : BC_GenericButton(thread->window->get_w() - BC_GenericButton::calculate_w(thread->window, _("Cancel")) - 10,
 677         thread->window->get_h() - BC_GenericButton::calculate_h() - 10,
 678         _("Cancel"))
 679 {
 680         this->mwindow = mwindow;
 681         this->thread = thread;
 682 }
 683 int PreferencesCancel::keypress_event()
 684 {
 685         if(get_keypress() == ESC)
 686         {
 687                 thread->window->set_done(1);
 688                 return 1;
 689         }
 690         return 0;
 691 }
 692 int PreferencesCancel::handle_event()
 693 {
 694         thread->window->set_done(1);
 695         return 1;
 696 }
 697 int PreferencesCancel::resize_event(int w, int h)
 698 {
 699         reposition_window(w-get_w()-10, h-get_h()-10);
 700         return 1;
 701 }
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712 PreferencesCategory::PreferencesCategory(MWindow *mwindow, PreferencesThread *thread, int x, int y)
 713  : BC_PopupTextBox(thread->window,
 714                 &thread->window->categories,
 715                 thread->category_to_text(thread->current_dialog),
 716                 x,
 717                 y,
 718                 200,
 719                 150)
 720 {
 721         this->mwindow = mwindow;
 722         this->thread = thread;
 723 }
 724
 725 PreferencesCategory::~PreferencesCategory()
 726 {
 727 }
 728
 729 int PreferencesCategory::handle_event()
 730 {
 731 SET_TRACE
 732         thread->window->set_current_dialog(thread->text_to_category(get_text()));
 733 SET_TRACE
 734         return 1;
 735 }