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"
 215 int C_LyXView_atCloseMainFormCB(FL_FORM * form, void * p)
 216 {
 217         return LyXView::atCloseMainFormCB(form, p);
 218 }
 219
 220
 221 void LyXView::setPosition(int x, int y)
 222 {
 223         fl_set_form_position(form_, x, y);
 224 }
 225
 226
 227 void LyXView::show(int place, int border, char const * title)
 228 {
 229         fl_show_form(form_, place, border, title);
 230         minibuffer->Init();
 231         InitLyXLookup(fl_display, form_->window);
 232 }
 233
 234
 235 void LyXView::create_form_form_main(int width, int height)
 236         /* to make this work as it should, .lyxrc should have been
 237          * read first; OR maybe this one should be made dynamic.
 238          * Hmmmm. Lgb.
 239          * We will probably not have lyxrc before the main form is
 240          * initialized, because error messages from lyxrc parsing
 241          * are presented (and rightly so) in GUI popups. Asger.
 242          */
 243 {
 244         // the main form
 245         form_ = fl_bgn_form(FL_NO_BOX, width, height);
 246         form_->u_vdata = this;
 247         FL_OBJECT * obj = fl_add_box(FL_FLAT_BOX, 0, 0, width, height, "");
 248         fl_set_object_color(obj, FL_MCOL, FL_MCOL);
 249
 250         // Parameters for the appearance of the main form
 251         int const air = 2;
 252         int const bw = abs(fl_get_border_width());
 253
 254         //
 255         // THE MENUBAR
 256         //
 257 #ifdef NEW_MENUBAR
 258         menubar = new Menubar(this, menubackend);
 259 #else
 260         menus = new Menus(this, air);
 261 #endif
 262
 263         //
 264         // TOOLBAR
 265         //
 266
 267         toolbar = new Toolbar(this, air, 30 + air + bw, toolbardefaults);
 268
 269         // Setup the toolbar
 270         toolbar->set(true);
 271
 272         //
 273         // WORKAREA
 274         //
 275
 276         int const ywork = 60 + 2 * air + bw;
 277         int const workheight = height - ywork - (25 + 2 * air);
 278
 279         ::current_view = bufferview = new BufferView(this, air, ywork,
 280                                                      width - 3 * air,
 281                                                      workheight);
 282
 283         //
 284         // MINIBUFFER
 285         //
 286
 287         minibuffer = new MiniBuffer(this, air, height - (25 + air),
 288                                     width - (2 * air), 25);
 289
 290         //
 291         // TIMERS
 292         //
 293
 294         autosave_timeout.timeout.connect(slot(this, &LyXView::AutoSave));
 295
 296         //
 297         // Misc
 298         //
 299
 300         //  assign an icon to main form
 301         string iconname = LibFileSearch("images", "lyx", "xpm");
 302         if (!iconname.empty()) {
 303                 unsigned int w, h;
 304                 Pixmap lyx_p, lyx_mask;
 305                 lyx_p = fl_read_pixmapfile(fl_root,
 306                                            iconname.c_str(),
 307                                            &w,
 308                                            &h,
 309                                            &lyx_mask,
 310                                            0,
 311                                            0,
 312                                            0); // this leaks
 313                 fl_set_form_icon(form_, lyx_p, lyx_mask);
 314         }
 315
 316         // set min size
 317         fl_set_form_minsize(form_, 50, 50);
 318
 319         fl_end_form();
 320 }
 321
 322
 323 #if 0
 324 extern "C"
 325 int C_LyXView_KeyPressMask_raw_callback(FL_FORM * fl, void * xev);
 326 #endif
 327
 328
 329 void LyXView::init()
 330 {
 331         // Set the textclass choice
 332         invalidateLayoutChoice();
 333         updateLayoutChoice();
 334         UpdateDocumentClassChoice();
 335 #ifdef NEW_MENUBAR
 336         updateMenubar();
 337 #endif
 338
 339         // Start autosave timer
 340         if (lyxrc.autosave) {
 341                 autosave_timeout.setTimeout(lyxrc.autosave * 1000);
 342                 autosave_timeout.start();
 343         }
 344
 345 #if 0
 346         // Install the raw callback for keyboard events
 347         fl_register_raw_callback(form_,
 348                                  KeyPressMask,
 349                                  C_LyXView_KeyPressMask_raw_callback);
 350 #endif
 351         intl->InitKeyMapper(lyxrc.use_kbmap);
 352 }
 353
 354
 355 void LyXView::invalidateLayoutChoice()
 356 {
 357         last_textclass = -1;
 358 }
 359
 360
 361 void LyXView::updateLayoutChoice()
 362 {
 363         // This has a side-effect that the layouts are not showed when no
 364         // document is loaded.
 365         if (!view() || !view()->buffer()) {
 366                 toolbar->clearLayoutList();
 367                 return;
 368         }
 369
 370         // Update the layout display
 371         if (last_textclass != int(buffer()->params.textclass)) {
 372                 toolbar->updateLayoutList(true);
 373                 last_textclass = int(buffer()->params.textclass);
 374                 current_layout = 0;
 375         } else
 376                 toolbar->updateLayoutList(false);
 377
 378
 379
 380         LyXTextClass::size_type layout =
 381                 bufferview->text->cursor.par()->GetLayout();
 382
 383         if (layout != current_layout){
 384                 toolbar->setLayout(layout);
 385                 current_layout = layout;
 386         }
 387 }
 388
 389
 390 void LyXView::UpdateDocumentClassChoice()
 391 {
 392         // Update the document class display in the document form
 393         if (fd_form_document) {
 394                 fl_clear_choice(fd_form_document->choice_class);
 395                 for (LyXTextClassList::const_iterator cit = textclasslist.begin();
 396                      cit != textclasslist.end(); ++cit) {
 397                         fl_addto_choice(fd_form_document->choice_class,
 398                                         (*cit).description().c_str());
 399                 }
 400         }
 401 }
 402
 403
 404 #if 0
 405 // This is necessary, since FL_FREE-Objects doesn't get all keypress events
 406 // as FL_KEYBOARD events :-(   Matthias 280596
 407 int LyXView::KeyPressMask_raw_callback(FL_FORM * fl, void * xev)
 408 {
 409         LyXView * view = static_cast<LyXView*>(fl->u_vdata);
 410         int retval = 0;  // 0 means XForms should have a look at this event
 411
 412         XKeyEvent * xke = static_cast<XKeyEvent*>(xev);
 413         static Time last_time_pressed = 0;
 414         static Time last_time_released = 0;
 415         static unsigned int last_key_pressed = 0;
 416         static unsigned int last_key_released = 0;
 417         static unsigned int last_state_pressed = 0;
 418         static unsigned int last_state_released = 0;
 419
 420         // funny. Even though the raw_callback is registered with KeyPressMask,
 421         // also KeyRelease-events are passed through:-(
 422         // [It seems that XForms puts them in pairs... (JMarc)]
 423         if (static_cast<XEvent*>(xev)->type == KeyPress
 424             && view->bufferview->focus()
 425             && view->bufferview->active())
 426                 {
 427                 last_time_pressed = xke->time;
 428                 last_key_pressed = xke->keycode;
 429                 last_state_pressed = xke->state;
 430                 retval = view->getLyXFunc()
 431                         ->processKeyEvent(static_cast<XEvent*>(xev));
 432         }
 433         else if (static_cast<XEvent*>(xev)->type == KeyRelease
 434                  && view->bufferview->focus()
 435                  && view->bufferview->active())
 436 {
 437                 last_time_released = xke->time;
 438                 last_key_released = xke->keycode;
 439                 last_state_released = xke->state;
 440         }
 441
 442         if (last_key_released == last_key_pressed
 443             && last_state_released == last_state_pressed
 444             && last_time_released == last_time_pressed) {
 445                 // When the diff between last_time_released and
 446                 // last_time_pressed is 0, that sinifies an autoreapeat
 447                 // at least on my system. It like some feedback from
 448                 // others, especially from user running LyX remote.
 449                 lyxerr[Debug::KEY] << "Syncing - purging X events." << endl;
 450                 XSync(fl_get_display(), 1);
 451                 // This purge make f.ex. scrolling stop imidiatly when
 452                 // releaseing the PageDown button. The question is if this
 453                 // purging of XEvents can cause any harm...after some testing
 454                 // I can see no problems, but I'd like other reports too.
 455         }
 456         return retval;
 457 }
 458
 459
 460 // wrapper for the above
 461 extern "C"
 462 int C_LyXView_KeyPressMask_raw_callback(FL_FORM * fl, void * xev)
 463 {
 464         return LyXView::KeyPressMask_raw_callback(fl, xev);
 465 }
 466 #endif
 467
 468
 469 // Updates the title of the window with the filename of the current document
 470 void LyXView::updateWindowTitle()
 471 {
 472         static string last_title = "LyX";
 473         string title = "LyX";
 474
 475         if (view()->available()) {
 476                 string cur_title = buffer()->fileName();
 477                 if (!cur_title.empty()){
 478                         title += ": " + OnlyFilename(cur_title);
 479                         if (!buffer()->isLyxClean())
 480                                 title += _(" (Changed)");
 481                         if (buffer()->isReadonly())
 482                                 title += _(" (read only)");
 483                 }
 484         }
 485         // Don't update title if it's the same as last time
 486         if (title != last_title) {
 487                 fl_set_form_title(form_, title.c_str());
 488                 last_title = title;
 489         }
 490 }
 491
 492
 493 void LyXView::showState()
 494 {
 495         getMiniBuffer()->Set(CurrentState(view()));
 496         getToolbar()->update();
 497         menubar->update();
 498 }