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