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 extern "C" {
 162         static
 163         void C_LyXView_AutosaveTimerCB(void * ob)
 164         {
 165                 LyXView * view = static_cast<LyXView*>(ob);
 166                 view->AutoSave();
 167         }
 168 }
 169
 170 /// Reset autosave timer
 171 void LyXView::resetAutosaveTimer()
 172 {
 173         if (lyxrc.autosave)
 174                 autosave_timeout.restart();
 175 }
 176
 177
 178 // Callback for close main form from window manager
 179 int LyXView::atCloseMainFormCB(FL_FORM *, void *)
 180 {
 181         QuitLyX();
 182         return FL_IGNORE;
 183 }
 184
 185
 186 // Wrapper for the above
 187 extern "C" int C_LyXView_atCloseMainFormCB(FL_FORM * form, void * p)
 188 {
 189         return LyXView::atCloseMainFormCB(form, p);
 190 }
 191
 192
 193 void LyXView::setPosition(int x, int y)
 194 {
 195         fl_set_form_position(form_, x, y);
 196 }
 197
 198
 199 void LyXView::show(int place, int border, char const * title)
 200 {
 201         fl_show_form(form_, place, border, title);
 202         minibuffer->Init();
 203         InitLyXLookup(fl_display, form_->window);
 204 }
 205
 206
 207 void LyXView::create_form_form_main(int width, int height)
 208         /* to make this work as it should, .lyxrc should have been
 209          * read first; OR maybe this one should be made dynamic.
 210          * Hmmmm. Lgb.
 211          * We will probably not have lyxrc before the main form is
 212          * initialized, because error messages from lyxrc parsing
 213          * are presented (and rightly so) in GUI popups. Asger.
 214          */
 215 {
 216         FD_form_main * fdui = static_cast<FD_form_main *>
 217                 (fl_calloc(1, sizeof(FD_form_main)));
 218
 219         form_main_ = fdui;
 220
 221         // the main form
 222         form_ = fdui->form_main = fl_bgn_form(FL_NO_BOX, width, height);
 223         fdui->form_main->u_vdata = this;
 224         FL_OBJECT * obj = fl_add_box(FL_FLAT_BOX, 0, 0, width, height, "");
 225         fl_set_object_color(obj, FL_MCOL, FL_MCOL);
 226
 227         // Parameters for the appearance of the main form
 228         int const air = 2;
 229         int const bw = abs(fl_get_border_width());
 230
 231         //
 232         // THE MENUBAR
 233         //
 234
 235         menus = new Menus(this, air);
 236
 237         //
 238         // TOOLBAR
 239         //
 240
 241         toolbar = new Toolbar(this, air, 30 + air + bw);
 242
 243         // Setup the toolbar
 244         toolbar->set(true);
 245
 246         //
 247         // WORKAREA
 248         //
 249
 250         int const ywork = 60 + 2 * air + bw;
 251         int const workheight = height - ywork - (25 + 2 * air);
 252
 253         ::current_view = bufferview = new BufferView(this, air, ywork,
 254                                                      width - 3 * air,
 255                                                      workheight);
 256
 257         //
 258         // MINIBUFFER
 259         //
 260
 261         minibuffer = new MiniBuffer(this, air, height - (25 + air),
 262                                     width - (2 * air), 25);
 263
 264         //
 265         // TIMERS
 266         //
 267
 268         autosave_timeout.callback(C_LyXView_AutosaveTimerCB, this);
 269
 270         //
 271         // Misc
 272         //
 273
 274         //  assign an icon to main form
 275         unsigned int w, h;
 276         Pixmap lyx_p, lyx_mask;
 277         lyx_p = fl_create_from_pixmapdata(fl_root,
 278                                           const_cast<char**>(lyx_xpm),
 279                                           &w,
 280                                           &h,
 281                                           &lyx_mask,
 282                                           0,
 283                                           0,
 284                                           0); // this leaks
 285         fl_set_form_icon(fdui->form_main, lyx_p, lyx_mask);
 286
 287         // set min size
 288         fl_set_form_minsize(fdui->form_main, 50, 50);
 289
 290         fl_end_form();
 291 }
 292
 293
 294 extern "C" int C_LyXView_KeyPressMask_raw_callback(FL_FORM * fl, void * xev);
 295
 296 void LyXView::init()
 297 {
 298         // Set the textclass choice
 299         invalidateLayoutChoice();
 300         updateLayoutChoice();
 301         UpdateDocumentClassChoice();
 302
 303         // Start autosave timer
 304         if (lyxrc.autosave)
 305 #if 0
 306                 fl_set_timer(form_main_->timer_autosave, lyxrc.autosave);
 307 #else
 308         autosave_timeout.setTimeout(lyxrc.autosave * 1000);
 309         autosave_timeout.start();
 310 #endif
 311
 312         // Install the raw callback for keyboard events
 313         fl_register_raw_callback(form_,
 314                                  KeyPressMask,
 315                                  C_LyXView_KeyPressMask_raw_callback);
 316         intl->InitKeyMapper(lyxrc.use_kbmap);
 317 }
 318
 319
 320 void LyXView::invalidateLayoutChoice()
 321 {
 322         last_textclass = -1;
 323 }
 324
 325
 326 void LyXView::updateLayoutChoice()
 327 {
 328         // Update the layout display
 329         if (!toolbar->combox) return;
 330
 331         // This has a side-effect that the layouts are not showed when no
 332         // document is loaded.
 333         if (bufferview == 0 || bufferview->buffer() == 0) {
 334                 toolbar->combox->clear();
 335                 toolbar->combox->Redraw();
 336                 return;
 337         }
 338
 339         // If textclass is different, we need to update the list
 340         if (toolbar->combox->empty() ||
 341             (last_textclass != int(buffer()->params.textclass))) {
 342                 toolbar->combox->clear();
 343                 LyXTextClass const & tc = textclasslist.TextClass(buffer()->params.textclass);
 344                 for (LyXTextClass::const_iterator cit = tc.begin();
 345                      cit != tc.end(); ++cit) {
 346                         if ((*cit).obsoleted_by().empty())
 347                                 toolbar->combox->addline((*cit).name().c_str());
 348                         else
 349                                 toolbar->combox->addline(("@N" + (*cit).name()).c_str());
 350                 }
 351                 last_textclass = int(buffer()->params.textclass);
 352                 current_layout = 0;
 353         }
 354         // we need to do this.
 355         toolbar->combox->Redraw();
 356
 357         LyXTextClass::size_type layout = bufferview->text->cursor.par()->GetLayout();
 358
 359         if (layout != current_layout){
 360                 toolbar->combox->select(layout + 1);
 361                 current_layout = layout;
 362         }
 363 }
 364
 365
 366 void LyXView::UpdateDocumentClassChoice()
 367 {
 368         // Update the document class display in the document form
 369         if (fd_form_document) {
 370                 fl_clear_choice(fd_form_document->choice_class);
 371                 for (LyXTextClassList::const_iterator cit = textclasslist.begin();
 372                      cit != textclasslist.end(); ++cit) {
 373                         fl_addto_choice(fd_form_document->choice_class,
 374                                         (*cit).description().c_str());
 375                 }
 376         }
 377 }
 378
 379
 380 // This is necessary, since FL_FREE-Objects doesn't get all keypress events
 381 // as FL_KEYBOARD events :-(   Matthias 280596
 382 int LyXView::KeyPressMask_raw_callback(FL_FORM * fl, void * xev)
 383 {
 384         LyXView * view = static_cast<LyXView*>(fl->u_vdata);
 385         int retval = 0;  // 0 means XForms should have a look at this event
 386
 387         XKeyEvent * xke = static_cast<XKeyEvent*>(xev);
 388         static Time last_time_pressed = 0;
 389         static Time last_time_released = 0;
 390         static unsigned int last_key_pressed = 0;
 391         static unsigned int last_key_released = 0;
 392         static unsigned int last_state_pressed = 0;
 393         static unsigned int last_state_released = 0;
 394
 395         // funny. Even though the raw_callback is registered with KeyPressMask,
 396         // also KeyRelease-events are passed through:-(
 397         // [It seems that XForms puts them in pairs... (JMarc)]
 398         if (static_cast<XEvent*>(xev)->type == KeyPress
 399             && view->bufferview->focus()
 400             && view->bufferview->active())
 401                 {
 402                 last_time_pressed = xke->time;
 403                 last_key_pressed = xke->keycode;
 404                 last_state_pressed = xke->state;
 405                 retval = view->getLyXFunc()
 406                         ->processKeyEvent(static_cast<XEvent*>(xev));
 407         }
 408         else if (static_cast<XEvent*>(xev)->type == KeyRelease
 409                  && view->bufferview->focus()
 410                  && view->bufferview->active())
 411 {
 412                 last_time_released = xke->time;
 413                 last_key_released = xke->keycode;
 414                 last_state_released = xke->state;
 415         }
 416
 417         if (last_key_released == last_key_pressed
 418             && last_state_released == last_state_pressed
 419             && last_time_released == last_time_pressed) {
 420                 // When the diff between last_time_released and
 421                 // last_time_pressed is 0, that sinifies an autoreapeat
 422                 // at least on my system. It like some feedback from
 423                 // others, especially from user running LyX remote.
 424                 //lyxerr << "Syncing - purging X events." << endl;
 425                 XSync(fl_get_display(), 1);
 426                 // This purge make f.ex. scrolling stop imidiatly when
 427                 // releaseing the PageDown button. The question is if this
 428                 // purging of XEvents can cause any harm...after some testing
 429                 // I can see no problems, but I'd like other reports too.
 430         }
 431         return retval;
 432 }
 433
 434
 435 // wrapper for the above
 436 extern "C" int C_LyXView_KeyPressMask_raw_callback(FL_FORM * fl, void * xev)
 437 {
 438         return LyXView::KeyPressMask_raw_callback(fl, xev);
 439 }
 440
 441
 442 // Updates the title of the window with the filename of the current document
 443 void LyXView::updateWindowTitle()
 444 {
 445         static string last_title = "LyX";
 446         string title = "LyX";
 447
 448         if (view()->available()) {
 449                 string cur_title = buffer()->fileName();
 450                 if (!cur_title.empty()){
 451                         title += ": " + OnlyFilename(cur_title);
 452                         if (!buffer()->isLyxClean())
 453                                 title += _(" (Changed)");
 454                         if (buffer()->isReadonly())
 455                                 title += _(" (read only)");
 456                 }
 457         }
 458         // Don't update title if it's the same as last time
 459         if (title != last_title) {
 460                 fl_set_form_title(form_, title.c_str());
 461                 last_title = title;
 462         }
 463 }