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