src/LyXView.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2000 The LyX Team.
   8  *
   9  * ====================================================== */
  10
  11 #include <config.h>
  12
  13 #ifdef __GNUG__
  14 #pragma implementation
  15 #endif
  16
  17 #include <sys/time.h>
  18 #include <unistd.h>
  19
  20 #include "LyXView.h"
  21 #include "lyx_main.h"
  22 #include "lyxlookup.h"
  23 #include "minibuffer.h"
  24 #include "lyxfunc.h"
  25 #include "debug.h"
  26 #include "layout_forms.h"
  27 #include "intl.h"
  28 #include "lyxrc.h"
  29 #include "support/filetools.h"        // OnlyFilename()
  30 #include "layout.h"
  31 #include "lyxtext.h"
  32 #include "buffer.h"
  33 #include "frontends/Dialogs.h"
  34 #include "frontends/Toolbar.h"
  35 #ifdef NEW_MENUBAR
  36 # include "frontends/Menubar.h"
  37 # include "MenuBackend.h"
  38 #else
  39 # include "menus.h"
  40 #endif
  41 #include "ToolbarDefaults.h"
  42 #include "lyx_gui_misc.h"       // [update,Close]AllBufferRelatedDialogs
  43 #include "bufferview_funcs.h" // CurrentState()
  44
  45 using std::endl;
  46
  47 extern FD_form_document * fd_form_document;
  48
  49 extern void AutoSave(BufferView *);
  50 extern void QuitLyX();
  51 LyXTextClass::size_type current_layout = 0;
  52
  53 // This is very temporary
  54 BufferView * current_view;
  55
  56 extern "C" int C_LyXView_atCloseMainFormCB(FL_FORM *, void *);
  57
  58 #ifdef SIGC_CXX_NAMESPACES
  59 using SigC::Connection;
  60 using SigC::slot;
  61 #endif
  62
  63 LyXView::LyXView(int width, int height)
  64 {
  65         create_form_form_main(width, height);
  66         fl_set_form_atclose(form_, C_LyXView_atCloseMainFormCB, 0);
  67         lyxerr[Debug::INIT] << "Initializing LyXFunc" << endl;
  68         lyxfunc = new LyXFunc(this);
  69         intl = new Intl;
  70
  71         // Make sure the buttons are disabled if needed.
  72         toolbar->update();
  73         menubar->update();
  74
  75         dialogs_ = new Dialogs(this);
  76         // temporary until all dialogs moved into Dialogs.
  77         dialogs_->updateBufferDependent
  78                 .connect(slot(&updateAllVisibleBufferRelatedDialogs));
  79         dialogs_->hideBufferDependent
  80                 .connect(slot(&CloseAllBufferRelatedDialogs));
  81 }
  82
  83
  84 LyXView::~LyXView()
  85 {
  86 #ifdef NEW_MENUBAR
  87         delete menubar;
  88 #else
  89         delete menus;
  90 #endif
  91         delete toolbar;
  92         delete bufferview;
  93         delete minibuffer;
  94         delete lyxfunc;
  95         delete intl;
  96         delete dialogs_;
  97 }
  98
  99
 100 /// Redraw the main form.
 101 void LyXView::redraw() {
 102         lyxerr[Debug::INFO] << "LyXView::redraw()" << endl;
 103         fl_redraw_form(form_);
 104         minibuffer->Activate();
 105 }
 106
 107
 108 /// returns the buffer currently shown in the main form.
 109 Buffer * LyXView::buffer() const
 110 {
 111         return bufferview->buffer();
 112 }
 113
 114
 115 BufferView * LyXView::view() const
 116 {
 117         return bufferview;
 118 }
 119
 120
 121 FL_FORM * LyXView::getForm() const
 122 {
 123         return form_;
 124 }
 125
 126
 127 Toolbar * LyXView::getToolbar() const
 128 {
 129         return toolbar;
 130 }
 131
 132
 133 void LyXView::setLayout(int layout)
 134 {
 135         toolbar->setLayout(layout);
 136 }
 137
 138
 139 void LyXView::updateToolbar()
 140 {
 141         toolbar->update();
 142         menubar->update();
 143 }
 144
 145
 146 LyXFunc * LyXView::getLyXFunc() const
 147 {
 148         return lyxfunc;
 149 }
 150
 151
 152 MiniBuffer * LyXView::getMiniBuffer() const
 153 {
 154         return minibuffer;
 155 }
 156
 157
 158 #ifdef NEW_MENUBAR
 159 Menubar * LyXView::getMenubar() const
 160 {
 161         return menubar;
 162 }
 163
 164
 165 void LyXView::updateMenubar()
 166 {
 167         if ((!view() || !view()->buffer())
 168             && menubackend.hasMenu("main_nobuffer"))
 169                 menubar->set("main_nobuffer");
 170         else
 171                 menubar->set("main");
 172 }
 173
 174 #else
 175 Menus * LyXView::getMenus() const
 176 {
 177         return menus;
 178 }
 179 #endif
 180
 181
 182 Intl * LyXView::getIntl() const
 183 {
 184         return intl;
 185 }
 186
 187
 188 // Callback for autosave timer
 189 void LyXView::AutoSave()
 190 {
 191         lyxerr[Debug::INFO] << "Running AutoSave()" << endl;
 192         if (view()->available())
 193                 ::AutoSave(view());
 194 }
 195
 196
 197 /// Reset autosave timer
 198 void LyXView::resetAutosaveTimer()
 199 {
 200         if (lyxrc.autosave)
 201                 autosave_timeout.restart();
 202 }
 203
 204
 205 // Callback for close main form from window manager
 206 int LyXView::atCloseMainFormCB(FL_FORM *, void *)
 207 {
 208         QuitLyX();
 209         return FL_IGNORE;
 210 }
 211
 212
 213 // Wrapper for the above
 214 extern "C" int C_LyXView_atCloseMainFormCB(FL_FORM * form, void * p)
 215 {
 216         return LyXView::atCloseMainFormCB(form, p);
 217 }
 218
 219
 220 void LyXView::setPosition(int x, int y)
 221 {
 222         fl_set_form_position(form_, x, y);
 223 }
 224
 225
 226 void LyXView::show(int place, int border, char const * title)
 227 {
 228         fl_show_form(form_, place, border, title);
 229         minibuffer->Init();
 230         InitLyXLookup(fl_display, form_->window);
 231 }
 232
 233
 234 void LyXView::create_form_form_main(int width, int height)
 235         /* to make this work as it should, .lyxrc should have been
 236          * read first; OR maybe this one should be made dynamic.
 237          * Hmmmm. Lgb.
 238          * We will probably not have lyxrc before the main form is
 239          * initialized, because error messages from lyxrc parsing
 240          * are presented (and rightly so) in GUI popups. Asger.
 241          */
 242 {
 243         // the main form
 244         form_ = fl_bgn_form(FL_NO_BOX, width, height);
 245         form_->u_vdata = this;
 246         FL_OBJECT * obj = fl_add_box(FL_FLAT_BOX, 0, 0, width, height, "");
 247         fl_set_object_color(obj, FL_MCOL, FL_MCOL);
 248
 249         // Parameters for the appearance of the main form
 250         int const air = 2;
 251         int const bw = abs(fl_get_border_width());
 252
 253         //
 254         // THE MENUBAR
 255         //
 256 #ifdef NEW_MENUBAR
 257         menubar = new Menubar(this, menubackend);
 258 #else
 259         menus = new Menus(this, air);
 260 #endif
 261
 262         //
 263         // TOOLBAR
 264         //
 265
 266         toolbar = new Toolbar(this, air, 30 + air + bw, toolbardefaults);
 267
 268         // Setup the toolbar
 269         toolbar->set(true);
 270
 271         //
 272         // WORKAREA
 273         //
 274
 275         int const ywork = 60 + 2 * air + bw;
 276         int const workheight = height - ywork - (25 + 2 * air);
 277
 278         ::current_view = bufferview = new BufferView(this, air, ywork,
 279                                                      width - 3 * air,
 280                                                      workheight);
 281
 282         //
 283         // MINIBUFFER
 284         //
 285
 286         minibuffer = new MiniBuffer(this, air, height - (25 + air),
 287                                     width - (2 * air), 25);
 288
 289         //
 290         // TIMERS
 291         //
 292
 293         autosave_timeout.timeout.connect(slot(this, &LyXView::AutoSave));
 294
 295         //
 296         // Misc
 297         //
 298
 299         //  assign an icon to main form
 300         string iconname = LibFileSearch("images", "lyx", "xpm");
 301         if (!iconname.empty()) {
 302                 unsigned int w, h;
 303                 Pixmap lyx_p, lyx_mask;
 304                 lyx_p = fl_read_pixmapfile(fl_root,
 305                                            iconname.c_str(),
 306                                            &w,
 307                                            &h,
 308                                            &lyx_mask,
 309                                            0,
 310                                            0,
 311                                            0); // this leaks
 312                 fl_set_form_icon(form_, lyx_p, lyx_mask);
 313         }
 314
 315         // set min size
 316         fl_set_form_minsize(form_, 50, 50);
 317
 318         fl_end_form();
 319 }
 320
 321
 322 extern "C"
 323 int C_LyXView_KeyPressMask_raw_callback(FL_FORM * fl, void * xev);
 324
 325 void LyXView::init()
 326 {
 327         // Set the textclass choice
 328         invalidateLayoutChoice();
 329         updateLayoutChoice();
 330         UpdateDocumentClassChoice();
 331 #ifdef NEW_MENUBAR
 332         updateMenubar();
 333 #endif
 334
 335         // Start autosave timer
 336         if (lyxrc.autosave) {
 337                 autosave_timeout.setTimeout(lyxrc.autosave * 1000);
 338                 autosave_timeout.start();
 339         }
 340
 341         // Install the raw callback for keyboard events
 342         fl_register_raw_callback(form_,
 343                                  KeyPressMask,
 344                                  C_LyXView_KeyPressMask_raw_callback);
 345         intl->InitKeyMapper(lyxrc.use_kbmap);
 346 }
 347
 348
 349 void LyXView::invalidateLayoutChoice()
 350 {
 351         last_textclass = -1;
 352 }
 353
 354
 355 void LyXView::updateLayoutChoice()
 356 {
 357         // This has a side-effect that the layouts are not showed when no
 358         // document is loaded.
 359         if (!view() || !view()->buffer()) {
 360                 toolbar->clearLayoutList();
 361                 return;
 362         }
 363
 364         // Update the layout display
 365         if (last_textclass != int(buffer()->params.textclass)) {
 366                 toolbar->updateLayoutList(true);
 367                 last_textclass = int(buffer()->params.textclass);
 368                 current_layout = 0;
 369         } else
 370                 toolbar->updateLayoutList(false);
 371
 372
 373
 374         LyXTextClass::size_type layout =
 375                 bufferview->text->cursor.par()->GetLayout();
 376
 377         if (layout != current_layout){
 378                 toolbar->setLayout(layout);
 379                 current_layout = layout;
 380         }
 381 }
 382
 383
 384 void LyXView::UpdateDocumentClassChoice()
 385 {
 386         // Update the document class display in the document form
 387         if (fd_form_document) {
 388                 fl_clear_choice(fd_form_document->choice_class);
 389                 for (LyXTextClassList::const_iterator cit = textclasslist.begin();
 390                      cit != textclasslist.end(); ++cit) {
 391                         fl_addto_choice(fd_form_document->choice_class,
 392                                         (*cit).description().c_str());
 393                 }
 394         }
 395 }
 396
 397
 398 // This is necessary, since FL_FREE-Objects doesn't get all keypress events
 399 // as FL_KEYBOARD events :-(   Matthias 280596
 400 int LyXView::KeyPressMask_raw_callback(FL_FORM * fl, void * xev)
 401 {
 402         LyXView * view = static_cast<LyXView*>(fl->u_vdata);
 403         int retval = 0;  // 0 means XForms should have a look at this event
 404
 405         XKeyEvent * xke = static_cast<XKeyEvent*>(xev);
 406         static Time last_time_pressed = 0;
 407         static Time last_time_released = 0;
 408         static unsigned int last_key_pressed = 0;
 409         static unsigned int last_key_released = 0;
 410         static unsigned int last_state_pressed = 0;
 411         static unsigned int last_state_released = 0;
 412
 413         // funny. Even though the raw_callback is registered with KeyPressMask,
 414         // also KeyRelease-events are passed through:-(
 415         // [It seems that XForms puts them in pairs... (JMarc)]
 416         if (static_cast<XEvent*>(xev)->type == KeyPress
 417             && view->bufferview->focus()
 418             && view->bufferview->active())
 419                 {
 420                 last_time_pressed = xke->time;
 421                 last_key_pressed = xke->keycode;
 422                 last_state_pressed = xke->state;
 423                 retval = view->getLyXFunc()
 424                         ->processKeyEvent(static_cast<XEvent*>(xev));
 425         }
 426         else if (static_cast<XEvent*>(xev)->type == KeyRelease
 427                  && view->bufferview->focus()
 428                  && view->bufferview->active())
 429 {
 430                 last_time_released = xke->time;
 431                 last_key_released = xke->keycode;
 432                 last_state_released = xke->state;
 433         }
 434
 435         if (last_key_released == last_key_pressed
 436             && last_state_released == last_state_pressed
 437             && last_time_released == last_time_pressed) {
 438                 // When the diff between last_time_released and
 439                 // last_time_pressed is 0, that sinifies an autoreapeat
 440                 // at least on my system. It like some feedback from
 441                 // others, especially from user running LyX remote.
 442                 //lyxerr << "Syncing - purging X events." << endl;
 443                 XSync(fl_get_display(), 1);
 444                 // This purge make f.ex. scrolling stop imidiatly when
 445                 // releaseing the PageDown button. The question is if this
 446                 // purging of XEvents can cause any harm...after some testing
 447                 // I can see no problems, but I'd like other reports too.
 448         }
 449         return retval;
 450 }
 451
 452
 453 // wrapper for the above
 454 extern "C"
 455 int C_LyXView_KeyPressMask_raw_callback(FL_FORM * fl, void * xev)
 456 {
 457         return LyXView::KeyPressMask_raw_callback(fl, xev);
 458 }
 459
 460
 461 // Updates the title of the window with the filename of the current document
 462 void LyXView::updateWindowTitle()
 463 {
 464         static string last_title = "LyX";
 465         string title = "LyX";
 466
 467         if (view()->available()) {
 468                 string cur_title = buffer()->fileName();
 469                 if (!cur_title.empty()){
 470                         title += ": " + OnlyFilename(cur_title);
 471                         if (!buffer()->isLyxClean())
 472                                 title += _(" (Changed)");
 473                         if (buffer()->isReadonly())
 474                                 title += _(" (read only)");
 475                 }
 476         }
 477         // Don't update title if it's the same as last time
 478         if (title != last_title) {
 479                 fl_set_form_title(form_, title.c_str());
 480                 last_title = title;
 481         }
 482 }
 483
 484
 485 void LyXView::showState()
 486 {
 487         getMiniBuffer()->Set(CurrentState(view()));
 488         getToolbar()->update();
 489         menubar->update();
 490 }