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 void AutoSave(BufferView *);
  44 extern void QuitLyX();
  45 LyXTextClass::size_type current_layout = 0;
  46
  47 // This is very temporary
  48 BufferView * current_view;
  49
  50 extern "C" int C_LyXView_atCloseMainFormCB(FL_FORM *, void *);
  51
  52 #ifdef SIGC_CXX_NAMESPACES
  53 using SigC::Connection;
  54 using SigC::slot;
  55 #endif
  56
  57 LyXView::LyXView(int width, int height)
  58 {
  59         create_form_form_main(width, height);
  60         fl_set_form_atclose(form_, C_LyXView_atCloseMainFormCB, 0);
  61         lyxerr[Debug::INIT] << "Initializing LyXFunc" << endl;
  62         lyxfunc = new LyXFunc(this);
  63         intl = new Intl;
  64
  65         // Make sure the buttons are disabled if needed.
  66         toolbar->update();
  67         menubar->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 menubar;
  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 void LyXView::setLayout(LyXTextClass::size_type layout)
 124 {
 125         toolbar->setLayout(layout);
 126 }
 127
 128
 129 void LyXView::updateToolbar()
 130 {
 131         toolbar->update();
 132         menubar->update();
 133 }
 134
 135
 136 LyXFunc * LyXView::getLyXFunc() const
 137 {
 138         return lyxfunc;
 139 }
 140
 141
 142 MiniBuffer * LyXView::getMiniBuffer() const
 143 {
 144         return minibuffer;
 145 }
 146
 147
 148 Menubar * LyXView::getMenubar() const
 149 {
 150         return menubar;
 151 }
 152
 153
 154 void LyXView::updateMenubar()
 155 {
 156         if ((!view() || !view()->buffer())
 157             && menubackend.hasMenu("main_nobuffer"))
 158                 menubar->set("main_nobuffer");
 159         else
 160                 menubar->set("main");
 161 }
 162
 163
 164 Intl * LyXView::getIntl() const
 165 {
 166         return intl;
 167 }
 168
 169
 170 // Callback for autosave timer
 171 void LyXView::AutoSave()
 172 {
 173         lyxerr[Debug::INFO] << "Running AutoSave()" << endl;
 174         if (view()->available())
 175                 ::AutoSave(view());
 176 }
 177
 178
 179 /// Reset autosave timer
 180 void LyXView::resetAutosaveTimer()
 181 {
 182         if (lyxrc.autosave)
 183                 autosave_timeout.restart();
 184 }
 185
 186
 187 // Callback for close main form from window manager
 188 int LyXView::atCloseMainFormCB(FL_FORM *, void *)
 189 {
 190         QuitLyX();
 191         return FL_IGNORE;
 192 }
 193
 194
 195 // Wrapper for the above
 196 extern "C"
 197 int C_LyXView_atCloseMainFormCB(FL_FORM * form, void * p)
 198 {
 199         return LyXView::atCloseMainFormCB(form, p);
 200 }
 201
 202
 203 void LyXView::setPosition(int x, int y)
 204 {
 205         fl_set_form_position(form_, x, y);
 206 }
 207
 208
 209 void LyXView::show(int place, int border, string const & title)
 210 {
 211         fl_show_form(form_, place, border, title.c_str());
 212         minibuffer->Init();
 213         InitLyXLookup(fl_get_display(), form_->window);
 214 }
 215
 216
 217 void LyXView::create_form_form_main(int width, int height)
 218         /* to make this work as it should, .lyxrc should have been
 219          * read first; OR maybe this one should be made dynamic.
 220          * Hmmmm. Lgb.
 221          * We will probably not have lyxrc before the main form is
 222          * initialized, because error messages from lyxrc parsing
 223          * are presented (and rightly so) in GUI popups. Asger.
 224          */
 225 {
 226         // the main form
 227         form_ = fl_bgn_form(FL_NO_BOX, width, height);
 228         form_->u_vdata = this;
 229         FL_OBJECT * obj = fl_add_box(FL_FLAT_BOX, 0, 0, width, height, "");
 230         fl_set_object_color(obj, FL_MCOL, FL_MCOL);
 231
 232         // Parameters for the appearance of the main form
 233         int const air = 2;
 234         int const bw = abs(fl_get_border_width());
 235
 236         //
 237         // THE MENUBAR
 238         //
 239         menubar = new Menubar(this, menubackend);
 240
 241         //
 242         // TOOLBAR
 243         //
 244
 245         toolbar = new Toolbar(this, air, 30 + air + bw, toolbardefaults);
 246
 247         // Setup the toolbar
 248         toolbar->set(true);
 249
 250         //
 251         // WORKAREA
 252         //
 253
 254         int const ywork = 60 + 2 * air + bw;
 255         int const workheight = height - ywork - (25 + 2 * air);
 256
 257         ::current_view = bufferview = new BufferView(this, air, ywork,
 258                                                      width - 3 * air,
 259                                                      workheight);
 260
 261         //
 262         // MINIBUFFER
 263         //
 264
 265         minibuffer = new MiniBuffer(this, air, height - (25 + air),
 266                                     width - (2 * air), 25);
 267
 268         //
 269         // TIMERS
 270         //
 271
 272         autosave_timeout.timeout.connect(slot(this, &LyXView::AutoSave));
 273
 274         //
 275         // Misc
 276         //
 277
 278         //  assign an icon to main form
 279         string iconname = LibFileSearch("images", "lyx", "xpm");
 280         if (!iconname.empty()) {
 281                 unsigned int w, h;
 282                 Pixmap lyx_p, lyx_mask;
 283                 lyx_p = fl_read_pixmapfile(fl_root,
 284                                            iconname.c_str(),
 285                                            &w,
 286                                            &h,
 287                                            &lyx_mask,
 288                                            0,
 289                                            0,
 290                                            0); // this leaks
 291                 fl_set_form_icon(form_, lyx_p, lyx_mask);
 292         }
 293
 294         // set min size
 295         fl_set_form_minsize(form_, 50, 50);
 296
 297         fl_end_form();
 298 }
 299
 300
 301 #if 0
 302 extern "C"
 303 int C_LyXView_KeyPressMask_raw_callback(FL_FORM * fl, void * xev);
 304 #endif
 305
 306
 307 void LyXView::init()
 308 {
 309         // Set the textclass choice
 310         invalidateLayoutChoice();
 311         updateLayoutChoice();
 312         updateMenubar();
 313
 314         // Start autosave timer
 315         if (lyxrc.autosave) {
 316                 autosave_timeout.setTimeout(lyxrc.autosave * 1000);
 317                 autosave_timeout.start();
 318         }
 319
 320 #if 0
 321         // Install the raw callback for keyboard events
 322         fl_register_raw_callback(form_,
 323                                  KeyPressMask,
 324                                  C_LyXView_KeyPressMask_raw_callback);
 325 #endif
 326         intl->InitKeyMapper(lyxrc.use_kbmap);
 327 }
 328
 329
 330 void LyXView::invalidateLayoutChoice()
 331 {
 332         last_textclass = -1;
 333 }
 334
 335
 336 void LyXView::updateLayoutChoice()
 337 {
 338         // This has a side-effect that the layouts are not showed when no
 339         // document is loaded.
 340         if (!view() || !view()->buffer()) {
 341                 toolbar->clearLayoutList();
 342                 return;
 343         }
 344
 345         // Update the layout display
 346         if (last_textclass != int(buffer()->params.textclass)) {
 347                 toolbar->updateLayoutList(true);
 348                 last_textclass = int(buffer()->params.textclass);
 349                 current_layout = 0;
 350         } else
 351                 toolbar->updateLayoutList(false);
 352
 353
 354
 355         LyXTextClass::size_type layout =
 356                 bufferview->text->cursor.par()->GetLayout();
 357
 358         if (layout != current_layout){
 359                 toolbar->setLayout(layout);
 360                 current_layout = layout;
 361         }
 362 }
 363
 364
 365 #if 0
 366 // This is necessary, since FL_FREE-Objects doesn't get all keypress events
 367 // as FL_KEYBOARD events :-(   Matthias 280596
 368 int LyXView::KeyPressMask_raw_callback(FL_FORM * fl, void * xev)
 369 {
 370         LyXView * view = static_cast<LyXView*>(fl->u_vdata);
 371         int retval = 0;  // 0 means XForms should have a look at this event
 372
 373         XKeyEvent * xke = static_cast<XKeyEvent*>(xev);
 374         static Time last_time_pressed = 0;
 375         static Time last_time_released = 0;
 376         static unsigned int last_key_pressed = 0;
 377         static unsigned int last_key_released = 0;
 378         static unsigned int last_state_pressed = 0;
 379         static unsigned int last_state_released = 0;
 380
 381         // funny. Even though the raw_callback is registered with KeyPressMask,
 382         // also KeyRelease-events are passed through:-(
 383         // [It seems that XForms puts them in pairs... (JMarc)]
 384         if (static_cast<XEvent*>(xev)->type == KeyPress
 385             && view->bufferview->focus()
 386             && view->bufferview->active())
 387                 {
 388                 last_time_pressed = xke->time;
 389                 last_key_pressed = xke->keycode;
 390                 last_state_pressed = xke->state;
 391                 retval = view->getLyXFunc()
 392                         ->processKeyEvent(static_cast<XEvent*>(xev));
 393         }
 394         else if (static_cast<XEvent*>(xev)->type == KeyRelease
 395                  && view->bufferview->focus()
 396                  && view->bufferview->active())
 397 {
 398                 last_time_released = xke->time;
 399                 last_key_released = xke->keycode;
 400                 last_state_released = xke->state;
 401         }
 402
 403         if (last_key_released == last_key_pressed
 404             && last_state_released == last_state_pressed
 405             && last_time_released == last_time_pressed) {
 406                 // When the diff between last_time_released and
 407                 // last_time_pressed is 0, that sinifies an autoreapeat
 408                 // at least on my system. It like some feedback from
 409                 // others, especially from user running LyX remote.
 410                 lyxerr[Debug::KEY] << "Syncing - purging X events." << endl;
 411                 XSync(fl_get_display(), 1);
 412                 // This purge make f.ex. scrolling stop imidiatly when
 413                 // releaseing the PageDown button. The question is if this
 414                 // purging of XEvents can cause any harm...after some testing
 415                 // I can see no problems, but I'd like other reports too.
 416         }
 417         return retval;
 418 }
 419
 420
 421 // wrapper for the above
 422 extern "C"
 423 int C_LyXView_KeyPressMask_raw_callback(FL_FORM * fl, void * xev)
 424 {
 425         return LyXView::KeyPressMask_raw_callback(fl, xev);
 426 }
 427 #endif
 428
 429
 430 // Updates the title of the window with the filename of the current document
 431 void LyXView::updateWindowTitle()
 432 {
 433         static string last_title = "LyX";
 434         string title = "LyX";
 435
 436         if (view()->available()) {
 437                 string cur_title = buffer()->fileName();
 438                 if (!cur_title.empty()){
 439                         title += ": " + MakeDisplayPath(cur_title, 30);
 440                         if (!buffer()->isLyxClean())
 441                                 title += _(" (Changed)");
 442                         if (buffer()->isReadonly())
 443                                 title += _(" (read only)");
 444                 }
 445         }
 446         // Don't update title if it's the same as last time
 447         if (title != last_title) {
 448                 fl_set_form_title(form_, title.c_str());
 449                 last_title = title;
 450         }
 451 }
 452
 453
 454 void LyXView::showState()
 455 {
 456         getMiniBuffer()->Set(CurrentState(view()));
 457         getToolbar()->update();
 458         menubar->update();
 459 }