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