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