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