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 #if FL_REVISION < 89
  23 #include "lyxlookup.h"
  24 #endif
  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 "frontends/Dialogs.h"
  36 #include "frontends/Toolbar.h"
  37 #include "frontends/Menubar.h"
  38 #include "MenuBackend.h"
  39 #include "ToolbarDefaults.h"
  40 #include "lyx_gui_misc.h"       // [update,Close]AllBufferRelatedDialogs
  41 #include "bufferview_funcs.h" // CurrentState()
  42
  43 using std::endl;
  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(LyXTextClass::size_type 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 #if FL_REVISION < 89
 216         InitLyXLookup(fl_get_display(), form_->window);
 217 #endif
 218 }
 219
 220
 221 void LyXView::create_form_form_main(int width, int height)
 222         /* to make this work as it should, .lyxrc should have been
 223          * read first; OR maybe this one should be made dynamic.
 224          * Hmmmm. Lgb.
 225          * We will probably not have lyxrc before the main form is
 226          * initialized, because error messages from lyxrc parsing
 227          * are presented (and rightly so) in GUI popups. Asger.
 228          */
 229 {
 230         // the main form
 231         form_ = fl_bgn_form(FL_NO_BOX, width, height);
 232         form_->u_vdata = this;
 233         FL_OBJECT * obj = fl_add_box(FL_FLAT_BOX, 0, 0, width, height, "");
 234         fl_set_object_color(obj, FL_MCOL, FL_MCOL);
 235
 236         // Parameters for the appearance of the main form
 237         int const air = 2;
 238         int const bw = abs(fl_get_border_width());
 239
 240         //
 241         // THE MENUBAR
 242         //
 243         menubar = new Menubar(this, menubackend);
 244
 245         //
 246         // TOOLBAR
 247         //
 248
 249         toolbar = new Toolbar(this, air, 30 + air + bw, toolbardefaults);
 250
 251         // Setup the toolbar
 252         toolbar->set(true);
 253
 254         //
 255         // WORKAREA
 256         //
 257
 258         int const ywork = 60 + 2 * air + bw;
 259         int const workheight = height - ywork - (25 + 2 * air);
 260
 261         ::current_view = bufferview = new BufferView(this, air, ywork,
 262                                                      width - 3 * air,
 263                                                      workheight);
 264
 265         //
 266         // MINIBUFFER
 267         //
 268
 269         minibuffer = new MiniBuffer(this, air, height - (25 + air),
 270                                     width - (2 * air), 25);
 271
 272         //
 273         // TIMERS
 274         //
 275
 276         autosave_timeout.timeout.connect(slot(this, &LyXView::AutoSave));
 277
 278         //
 279         // Misc
 280         //
 281
 282         //  assign an icon to main form
 283         string iconname = LibFileSearch("images", "lyx", "xpm");
 284         if (!iconname.empty()) {
 285                 unsigned int w, h;
 286                 Pixmap lyx_p, lyx_mask;
 287                 lyx_p = fl_read_pixmapfile(fl_root,
 288                                            iconname.c_str(),
 289                                            &w,
 290                                            &h,
 291                                            &lyx_mask,
 292                                            0,
 293                                            0,
 294                                            0); // this leaks
 295                 fl_set_form_icon(form_, lyx_p, lyx_mask);
 296         }
 297
 298         // set min size
 299         fl_set_form_minsize(form_, 50, 50);
 300
 301         fl_end_form();
 302 }
 303
 304
 305 #if 0
 306 extern "C"
 307 int C_LyXView_KeyPressMask_raw_callback(FL_FORM * fl, void * xev);
 308 #endif
 309
 310
 311 void LyXView::init()
 312 {
 313         // Set the textclass choice
 314         invalidateLayoutChoice();
 315         updateLayoutChoice();
 316         updateMenubar();
 317
 318         // Start autosave timer
 319         if (lyxrc.autosave) {
 320                 autosave_timeout.setTimeout(lyxrc.autosave * 1000);
 321                 autosave_timeout.start();
 322         }
 323
 324 #if 0
 325         // Install the raw callback for keyboard events
 326         fl_register_raw_callback(form_,
 327                                  KeyPressMask,
 328                                  C_LyXView_KeyPressMask_raw_callback);
 329 #endif
 330         intl->InitKeyMapper(lyxrc.use_kbmap);
 331 }
 332
 333
 334 void LyXView::invalidateLayoutChoice()
 335 {
 336         last_textclass = -1;
 337 }
 338
 339
 340 void LyXView::updateLayoutChoice()
 341 {
 342         // This has a side-effect that the layouts are not showed when no
 343         // document is loaded.
 344         if (!view() || !view()->buffer()) {
 345                 toolbar->clearLayoutList();
 346                 return;
 347         }
 348
 349         // Update the layout display
 350         if (last_textclass != int(buffer()->params.textclass)) {
 351                 toolbar->updateLayoutList(true);
 352                 last_textclass = int(buffer()->params.textclass);
 353                 current_layout = 0;
 354         } else
 355                 toolbar->updateLayoutList(false);
 356
 357
 358
 359         LyXTextClass::size_type layout =
 360                 bufferview->text->cursor.par()->GetLayout();
 361
 362         if (layout != current_layout){
 363                 toolbar->setLayout(layout);
 364                 current_layout = layout;
 365         }
 366 }
 367
 368
 369 #if 0
 370 // This is necessary, since FL_FREE-Objects doesn't get all keypress events
 371 // as FL_KEYBOARD events :-(   Matthias 280596
 372 int LyXView::KeyPressMask_raw_callback(FL_FORM * fl, void * xev)
 373 {
 374         LyXView * view = static_cast<LyXView*>(fl->u_vdata);
 375         int retval = 0;  // 0 means XForms should have a look at this event
 376
 377         XKeyEvent * xke = static_cast<XKeyEvent*>(xev);
 378         static Time last_time_pressed = 0;
 379         static Time last_time_released = 0;
 380         static unsigned int last_key_pressed = 0;
 381         static unsigned int last_key_released = 0;
 382         static unsigned int last_state_pressed = 0;
 383         static unsigned int last_state_released = 0;
 384
 385         // funny. Even though the raw_callback is registered with KeyPressMask,
 386         // also KeyRelease-events are passed through:-(
 387         // [It seems that XForms puts them in pairs... (JMarc)]
 388         if (static_cast<XEvent*>(xev)->type == KeyPress
 389             && view->bufferview->focus()
 390             && view->bufferview->active())
 391                 {
 392                 last_time_pressed = xke->time;
 393                 last_key_pressed = xke->keycode;
 394                 last_state_pressed = xke->state;
 395                 retval = view->getLyXFunc()
 396                         ->processKeyEvent(static_cast<XEvent*>(xev));
 397         }
 398         else if (static_cast<XEvent*>(xev)->type == KeyRelease
 399                  && view->bufferview->focus()
 400                  && view->bufferview->active())
 401 {
 402                 last_time_released = xke->time;
 403                 last_key_released = xke->keycode;
 404                 last_state_released = xke->state;
 405         }
 406
 407         if (last_key_released == last_key_pressed
 408             && last_state_released == last_state_pressed
 409             && last_time_released == last_time_pressed) {
 410                 // When the diff between last_time_released and
 411                 // last_time_pressed is 0, that sinifies an autoreapeat
 412                 // at least on my system. It like some feedback from
 413                 // others, especially from user running LyX remote.
 414                 lyxerr[Debug::KEY] << "Syncing - purging X events." << endl;
 415                 XSync(fl_get_display(), 1);
 416                 // This purge make f.ex. scrolling stop imidiatly when
 417                 // releaseing the PageDown button. The question is if this
 418                 // purging of XEvents can cause any harm...after some testing
 419                 // I can see no problems, but I'd like other reports too.
 420         }
 421         return retval;
 422 }
 423
 424
 425 // wrapper for the above
 426 extern "C"
 427 int C_LyXView_KeyPressMask_raw_callback(FL_FORM * fl, void * xev)
 428 {
 429         return LyXView::KeyPressMask_raw_callback(fl, xev);
 430 }
 431 #endif
 432
 433
 434 // Updates the title of the window with the filename of the current document
 435 void LyXView::updateWindowTitle()
 436 {
 437         static string last_title = "LyX";
 438         string title = "LyX";
 439
 440         if (view()->available()) {
 441                 string cur_title = buffer()->fileName();
 442                 if (!cur_title.empty()){
 443                         title += ": " + MakeDisplayPath(cur_title, 30);
 444                         if (!buffer()->isLyxClean())
 445                                 title += _(" (Changed)");
 446                         if (buffer()->isReadonly())
 447                                 title += _(" (read only)");
 448                 }
 449         }
 450         // Don't update title if it's the same as last time
 451         if (title != last_title) {
 452                 fl_set_form_title(form_, title.c_str());
 453                 last_title = title;
 454         }
 455 }
 456
 457
 458 void LyXView::showState()
 459 {
 460         getMiniBuffer()->Set(CurrentState(view()));
 461         getToolbar()->update();
 462         menubar->update();
 463 }