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 #include "frontends/Menubar.h"
  36 #include "MenuBackend.h"
  37 #include "ToolbarDefaults.h"
  38 #include "lyx_gui_misc.h"       // [update,Close]AllBufferRelatedDialogs
  39 #include "bufferview_funcs.h" // CurrentState()
  40
  41 using std::endl;
  42
  43 extern FD_form_document * fd_form_document;
  44
  45 extern void AutoSave(BufferView *);
  46 extern void QuitLyX();
  47 LyXTextClass::size_type current_layout = 0;
  48
  49 // This is very temporary
  50 BufferView * current_view;
  51
  52 extern "C" int C_LyXView_atCloseMainFormCB(FL_FORM *, void *);
  53
  54 #ifdef SIGC_CXX_NAMESPACES
  55 using SigC::Connection;
  56 using SigC::slot;
  57 #endif
  58
  59 LyXView::LyXView(int width, int height)
  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         // Make sure the buttons are disabled if needed.
  68         toolbar->update();
  69         menubar->update();
  70
  71         dialogs_ = new Dialogs(this);
  72         // temporary until all dialogs moved into Dialogs.
  73         dialogs_->updateBufferDependent
  74                 .connect(slot(&updateAllVisibleBufferRelatedDialogs));
  75         dialogs_->hideBufferDependent
  76                 .connect(slot(&CloseAllBufferRelatedDialogs));
  77 }
  78
  79
  80 LyXView::~LyXView()
  81 {
  82         delete menubar;
  83         delete toolbar;
  84         delete bufferview;
  85         delete minibuffer;
  86         delete lyxfunc;
  87         delete intl;
  88         delete dialogs_;
  89 }
  90
  91
  92 /// Redraw the main form.
  93 void LyXView::redraw() {
  94         lyxerr[Debug::INFO] << "LyXView::redraw()" << endl;
  95         fl_redraw_form(form_);
  96         minibuffer->Activate();
  97 }
  98
  99
 100 /// returns the buffer currently shown in the main form.
 101 Buffer * LyXView::buffer() const
 102 {
 103         return bufferview->buffer();
 104 }
 105
 106
 107 BufferView * LyXView::view() const
 108 {
 109         return bufferview;
 110 }
 111
 112
 113 FL_FORM * LyXView::getForm() const
 114 {
 115         return form_;
 116 }
 117
 118
 119 Toolbar * LyXView::getToolbar() const
 120 {
 121         return toolbar;
 122 }
 123
 124
 125 void LyXView::setLayout(int layout)
 126 {
 127         toolbar->setLayout(layout);
 128 }
 129
 130
 131 void LyXView::updateToolbar()
 132 {
 133         toolbar->update();
 134         menubar->update();
 135 }
 136
 137
 138 LyXFunc * LyXView::getLyXFunc() const
 139 {
 140         return lyxfunc;
 141 }
 142
 143
 144 MiniBuffer * LyXView::getMiniBuffer() const
 145 {
 146         return minibuffer;
 147 }
 148
 149
 150 Menubar * LyXView::getMenubar() const
 151 {
 152         return menubar;
 153 }
 154
 155
 156 void LyXView::updateMenubar()
 157 {
 158         if ((!view() || !view()->buffer())
 159             && menubackend.hasMenu("main_nobuffer"))
 160                 menubar->set("main_nobuffer");
 161         else
 162                 menubar->set("main");
 163 }
 164
 165
 166 Intl * LyXView::getIntl() const
 167 {
 168         return intl;
 169 }
 170
 171
 172 // Callback for autosave timer
 173 void LyXView::AutoSave()
 174 {
 175         lyxerr[Debug::INFO] << "Running AutoSave()" << endl;
 176         if (view()->available())
 177                 ::AutoSave(view());
 178 }
 179
 180
 181 /// Reset autosave timer
 182 void LyXView::resetAutosaveTimer()
 183 {
 184         if (lyxrc.autosave)
 185                 autosave_timeout.restart();
 186 }
 187
 188
 189 // Callback for close main form from window manager
 190 int LyXView::atCloseMainFormCB(FL_FORM *, void *)
 191 {
 192         QuitLyX();
 193         return FL_IGNORE;
 194 }
 195
 196
 197 // Wrapper for the above
 198 extern "C"
 199 int C_LyXView_atCloseMainFormCB(FL_FORM * form, void * p)
 200 {
 201         return LyXView::atCloseMainFormCB(form, p);
 202 }
 203
 204
 205 void LyXView::setPosition(int x, int y)
 206 {
 207         fl_set_form_position(form_, x, y);
 208 }
 209
 210
 211 void LyXView::show(int place, int border, string const & title)
 212 {
 213         fl_show_form(form_, place, border, title.c_str());
 214         minibuffer->Init();
 215         InitLyXLookup(fl_display, form_->window);
 216 }
 217
 218
 219 void LyXView::create_form_form_main(int width, int height)
 220         /* to make this work as it should, .lyxrc should have been
 221          * read first; OR maybe this one should be made dynamic.
 222          * Hmmmm. Lgb.
 223          * We will probably not have lyxrc before the main form is
 224          * initialized, because error messages from lyxrc parsing
 225          * are presented (and rightly so) in GUI popups. Asger.
 226          */
 227 {
 228         // the main form
 229         form_ = fl_bgn_form(FL_NO_BOX, width, height);
 230         form_->u_vdata = this;
 231         FL_OBJECT * obj = fl_add_box(FL_FLAT_BOX, 0, 0, width, height, "");
 232         fl_set_object_color(obj, FL_MCOL, FL_MCOL);
 233
 234         // Parameters for the appearance of the main form
 235         int const air = 2;
 236         int const bw = abs(fl_get_border_width());
 237
 238         //
 239         // THE MENUBAR
 240         //
 241         menubar = new Menubar(this, menubackend);
 242
 243         //
 244         // TOOLBAR
 245         //
 246
 247         toolbar = new Toolbar(this, air, 30 + air + bw, toolbardefaults);
 248
 249         // Setup the toolbar
 250         toolbar->set(true);
 251
 252         //
 253         // WORKAREA
 254         //
 255
 256         int const ywork = 60 + 2 * air + bw;
 257         int const workheight = height - ywork - (25 + 2 * air);
 258
 259         ::current_view = bufferview = new BufferView(this, air, ywork,
 260                                                      width - 3 * air,
 261                                                      workheight);
 262
 263         //
 264         // MINIBUFFER
 265         //
 266
 267         minibuffer = new MiniBuffer(this, air, height - (25 + air),
 268                                     width - (2 * air), 25);
 269
 270         //
 271         // TIMERS
 272         //
 273
 274         autosave_timeout.timeout.connect(slot(this, &LyXView::AutoSave));
 275
 276         //
 277         // Misc
 278         //
 279
 280         //  assign an icon to main form
 281         string iconname = LibFileSearch("images", "lyx", "xpm");
 282         if (!iconname.empty()) {
 283                 unsigned int w, h;
 284                 Pixmap lyx_p, lyx_mask;
 285                 lyx_p = fl_read_pixmapfile(fl_root,
 286                                            iconname.c_str(),
 287                                            &w,
 288                                            &h,
 289                                            &lyx_mask,
 290                                            0,
 291                                            0,
 292                                            0); // this leaks
 293                 fl_set_form_icon(form_, lyx_p, lyx_mask);
 294         }
 295
 296         // set min size
 297         fl_set_form_minsize(form_, 50, 50);
 298
 299         fl_end_form();
 300 }
 301
 302
 303 #if 0
 304 extern "C"
 305 int C_LyXView_KeyPressMask_raw_callback(FL_FORM * fl, void * xev);
 306 #endif
 307
 308
 309 void LyXView::init()
 310 {
 311         // Set the textclass choice
 312         invalidateLayoutChoice();
 313         updateLayoutChoice();
 314         UpdateDocumentClassChoice();
 315         updateMenubar();
 316
 317         // Start autosave timer
 318         if (lyxrc.autosave) {
 319                 autosave_timeout.setTimeout(lyxrc.autosave * 1000);
 320                 autosave_timeout.start();
 321         }
 322
 323 #if 0
 324         // Install the raw callback for keyboard events
 325         fl_register_raw_callback(form_,
 326                                  KeyPressMask,
 327                                  C_LyXView_KeyPressMask_raw_callback);
 328 #endif
 329         intl->InitKeyMapper(lyxrc.use_kbmap);
 330 }
 331
 332
 333 void LyXView::invalidateLayoutChoice()
 334 {
 335         last_textclass = -1;
 336 }
 337
 338
 339 void LyXView::updateLayoutChoice()
 340 {
 341         // This has a side-effect that the layouts are not showed when no
 342         // document is loaded.
 343         if (!view() || !view()->buffer()) {
 344                 toolbar->clearLayoutList();
 345                 return;
 346         }
 347
 348         // Update the layout display
 349         if (last_textclass != int(buffer()->params.textclass)) {
 350                 toolbar->updateLayoutList(true);
 351                 last_textclass = int(buffer()->params.textclass);
 352                 current_layout = 0;
 353         } else
 354                 toolbar->updateLayoutList(false);
 355
 356
 357
 358         LyXTextClass::size_type layout =
 359                 bufferview->text->cursor.par()->GetLayout();
 360
 361         if (layout != current_layout){
 362                 toolbar->setLayout(layout);
 363                 current_layout = layout;
 364         }
 365 }
 366
 367
 368 void LyXView::UpdateDocumentClassChoice()
 369 {
 370         // Update the document class display in the document form
 371         if (fd_form_document) {
 372                 fl_clear_choice(fd_form_document->choice_class);
 373                 for (LyXTextClassList::const_iterator cit = textclasslist.begin();
 374                      cit != textclasslist.end(); ++cit) {
 375                         fl_addto_choice(fd_form_document->choice_class,
 376                                         (*cit).description().c_str());
 377                 }
 378         }
 379 }
 380
 381
 382 #if 0
 383 // This is necessary, since FL_FREE-Objects doesn't get all keypress events
 384 // as FL_KEYBOARD events :-(   Matthias 280596
 385 int LyXView::KeyPressMask_raw_callback(FL_FORM * fl, void * xev)
 386 {
 387         LyXView * view = static_cast<LyXView*>(fl->u_vdata);
 388         int retval = 0;  // 0 means XForms should have a look at this event
 389
 390         XKeyEvent * xke = static_cast<XKeyEvent*>(xev);
 391         static Time last_time_pressed = 0;
 392         static Time last_time_released = 0;
 393         static unsigned int last_key_pressed = 0;
 394         static unsigned int last_key_released = 0;
 395         static unsigned int last_state_pressed = 0;
 396         static unsigned int last_state_released = 0;
 397
 398         // funny. Even though the raw_callback is registered with KeyPressMask,
 399         // also KeyRelease-events are passed through:-(
 400         // [It seems that XForms puts them in pairs... (JMarc)]
 401         if (static_cast<XEvent*>(xev)->type == KeyPress
 402             && view->bufferview->focus()
 403             && view->bufferview->active())
 404                 {
 405                 last_time_pressed = xke->time;
 406                 last_key_pressed = xke->keycode;
 407                 last_state_pressed = xke->state;
 408                 retval = view->getLyXFunc()
 409                         ->processKeyEvent(static_cast<XEvent*>(xev));
 410         }
 411         else if (static_cast<XEvent*>(xev)->type == KeyRelease
 412                  && view->bufferview->focus()
 413                  && view->bufferview->active())
 414 {
 415                 last_time_released = xke->time;
 416                 last_key_released = xke->keycode;
 417                 last_state_released = xke->state;
 418         }
 419
 420         if (last_key_released == last_key_pressed
 421             && last_state_released == last_state_pressed
 422             && last_time_released == last_time_pressed) {
 423                 // When the diff between last_time_released and
 424                 // last_time_pressed is 0, that sinifies an autoreapeat
 425                 // at least on my system. It like some feedback from
 426                 // others, especially from user running LyX remote.
 427                 lyxerr[Debug::KEY] << "Syncing - purging X events." << endl;
 428                 XSync(fl_get_display(), 1);
 429                 // This purge make f.ex. scrolling stop imidiatly when
 430                 // releaseing the PageDown button. The question is if this
 431                 // purging of XEvents can cause any harm...after some testing
 432                 // I can see no problems, but I'd like other reports too.
 433         }
 434         return retval;
 435 }
 436
 437
 438 // wrapper for the above
 439 extern "C"
 440 int C_LyXView_KeyPressMask_raw_callback(FL_FORM * fl, void * xev)
 441 {
 442         return LyXView::KeyPressMask_raw_callback(fl, xev);
 443 }
 444 #endif
 445
 446
 447 // Updates the title of the window with the filename of the current document
 448 void LyXView::updateWindowTitle()
 449 {
 450         static string last_title = "LyX";
 451         string title = "LyX";
 452
 453         if (view()->available()) {
 454                 string cur_title = buffer()->fileName();
 455                 if (!cur_title.empty()){
 456                         title += ": " + MakeDisplayPath(cur_title);
 457                         if (!buffer()->isLyxClean())
 458                                 title += _(" (Changed)");
 459                         if (buffer()->isReadonly())
 460                                 title += _(" (read only)");
 461                 }
 462         }
 463         // Don't update title if it's the same as last time
 464         if (title != last_title) {
 465                 fl_set_form_title(form_, title.c_str());
 466                 last_title = title;
 467         }
 468 }
 469
 470
 471 void LyXView::showState()
 472 {
 473         getMiniBuffer()->Set(CurrentState(view()));
 474         getToolbar()->update();
 475         menubar->update();
 476 }