src/LyXView.C

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