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