src/frontends/LyXView.C

   1 /**
   2  * \file LyXView.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  * \author John Levon
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "LyXView.h"
  15 #include "Dialogs.h"
  16 #include "Timeout.h"
  17 #include "Toolbars.h"
  18 #include "Menubar.h"
  19 #include "WorkArea.h"
  20 #include "Gui.h"
  21
  22 #include "buffer.h"
  23 #include "bufferparams.h"
  24 #include "BufferView.h"
  25 #include "bufferview_funcs.h"
  26 #include "cursor.h"
  27 #include "debug.h"
  28 #include "errorlist.h"
  29 #include "funcrequest.h"
  30 #include "gettext.h"
  31 #include "intl.h"
  32 #include "lyx_cb.h"
  33 #include "lyxfunc.h"
  34 #include "lyxrc.h"
  35 #include "lyxtext.h"
  36 #include "MenuBackend.h"
  37 #include "paragraph.h"
  38
  39 #include "controllers/ControlCommandBuffer.h"
  40
  41 #include "support/lstrings.h"
  42 #include "support/filetools.h" // OnlyFilename()
  43
  44 #include <boost/bind.hpp>
  45
  46
  47 namespace lyx {
  48
  49 #ifdef HAVE_SYS_TIME_H
  50 # include <sys/time.h>
  51 #endif
  52 #ifdef HAVE_UNISTD_H
  53 # include <unistd.h>
  54 #endif
  55
  56 using frontend::WorkArea;
  57
  58 using support::bformat;
  59 using support::FileName;
  60 using support::makeDisplayPath;
  61 using support::onlyFilename;
  62
  63 using std::endl;
  64 using std::string;
  65
  66 using lyx::frontend::ControlCommandBuffer;
  67
  68 string current_layout;
  69
  70
  71 LyXView::LyXView(int id)
  72         : work_area_(0),
  73           toolbars_(new Toolbars(*this)),
  74           autosave_timeout_(new Timeout(5000)),
  75           dialogs_(new Dialogs(*this)),
  76           controlcommand_(new ControlCommandBuffer(*this)), id_(id)
  77 {
  78         // Start autosave timer
  79         if (lyxrc.autosave) {
  80                 autosave_timeout_->timeout.connect(boost::bind(&LyXView::autoSave, this));
  81                 autosave_timeout_->setTimeout(lyxrc.autosave * 1000);
  82                 autosave_timeout_->start();
  83         }
  84 }
  85
  86
  87 LyXView::~LyXView()
  88 {
  89 }
  90
  91
  92 // FIXME, there's only one WorkArea per LyXView possible for now.
  93 void LyXView::setWorkArea(WorkArea * work_area)
  94 {
  95         work_area_ = work_area;
  96         work_area_ids_.clear();
  97         work_area_ids_.push_back(work_area_->id());
  98 }
  99
 100
 101 Buffer * LyXView::buffer() const
 102 {
 103         return work_area_->bufferView().buffer();
 104 }
 105
 106
 107 void LyXView::setBuffer(Buffer * b)
 108 {
 109         busy(true);
 110
 111         if (work_area_->bufferView().buffer())
 112                 disconnectBuffer();
 113
 114         if (!b)
 115                 getDialogs().hideBufferDependent();
 116
 117         work_area_->bufferView().setBuffer(b);
 118
 119         if (work_area_->bufferView().buffer()) {
 120                 // Buffer-dependent dialogs should be updated or
 121                 // hidden. This should go here because some dialogs (eg ToC)
 122                 // require bv_->text.
 123                 getDialogs().updateBufferDependent(true);
 124                 connectBuffer(*work_area_->bufferView().buffer());
 125         }
 126
 127         if (quitting)
 128                 return;
 129
 130         updateMenubar();
 131         updateToolbars();
 132         updateLayoutChoice();
 133         updateWindowTitle();
 134         updateStatusBar();
 135         updateTab();
 136         busy(false);
 137         work_area_->redraw();
 138 }
 139
 140
 141 bool LyXView::loadLyXFile(FileName const & filename, bool tolastfiles)
 142 {
 143         busy(true);
 144
 145         if (work_area_->bufferView().buffer())
 146                 disconnectBuffer();
 147
 148         bool loaded = work_area_->bufferView().loadLyXFile(filename, tolastfiles);
 149
 150         updateMenubar();
 151         updateToolbars();
 152         updateLayoutChoice();
 153         updateWindowTitle();
 154         updateTab();
 155         if (loaded) {
 156                 connectBuffer(*work_area_->bufferView().buffer());
 157                 showErrorList("Parse");
 158         }
 159         updateStatusBar();
 160         busy(false);
 161         work_area_->redraw();
 162         return loaded;
 163 }
 164
 165
 166 void LyXView::connectBuffer(Buffer & buf)
 167 {
 168         if (errorsConnection_.connected())
 169                 disconnectBuffer();
 170
 171         bufferChangedConnection_ =
 172                 buf.changed.connect(
 173                         boost::bind(&WorkArea::redraw, work_area_));
 174
 175         errorsConnection_ =
 176                 buf.errors.connect(
 177                         boost::bind(&LyXView::showErrorList, this, _1));
 178
 179         messageConnection_ =
 180                 buf.message.connect(
 181                         boost::bind(&LyXView::message, this, _1));
 182
 183         busyConnection_ =
 184                 buf.busy.connect(
 185                         boost::bind(&LyXView::busy, this, _1));
 186
 187         titleConnection_ =
 188                 buf.updateTitles.connect(
 189                         boost::bind(&LyXView::updateWindowTitle, this));
 190
 191         timerConnection_ =
 192                 buf.resetAutosaveTimers.connect(
 193                         boost::bind(&LyXView::resetAutosaveTimer, this));
 194
 195         readonlyConnection_ =
 196                 buf.readonly.connect(
 197                         boost::bind(&LyXView::showReadonly, this, _1));
 198
 199         closingConnection_ =
 200                 buf.closing.connect(
 201                         boost::bind(&LyXView::setBuffer, this, (Buffer *)0));
 202 }
 203
 204
 205 void LyXView::disconnectBuffer()
 206 {
 207         errorsConnection_.disconnect();
 208         bufferChangedConnection_.disconnect();
 209         messageConnection_.disconnect();
 210         busyConnection_.disconnect();
 211         titleConnection_.disconnect();
 212         timerConnection_.disconnect();
 213         readonlyConnection_.disconnect();
 214         closingConnection_.disconnect();
 215         layout_changed_connection_.disconnect();
 216 }
 217
 218
 219 void LyXView::connectBufferView(BufferView & bv)
 220 {
 221         show_dialog_connection_ = bv.showDialog.connect(
 222                         boost::bind(&LyXView::showDialog, this, _1));
 223         show_dialog_with_data_connection_ = bv.showDialogWithData.connect(
 224                         boost::bind(&LyXView::showDialogWithData, this, _1, _2));
 225         show_inset_dialog_connection_ = bv.showInsetDialog.connect(
 226                         boost::bind(&LyXView::showInsetDialog, this, _1, _2, _3));
 227         update_dialog_connection_ = bv.updateDialog.connect(
 228                         boost::bind(&LyXView::updateDialog, this, _1, _2));
 229         layout_changed_connection_ = bv.layoutChanged.connect(
 230                         boost::bind(&Toolbars::setLayout, toolbars_.get(), _1));
 231 }
 232
 233
 234 void LyXView::disconnectBufferView()
 235 {
 236         show_dialog_connection_.disconnect();
 237         show_dialog_with_data_connection_.disconnect();
 238         show_inset_dialog_connection_.disconnect();
 239         update_dialog_connection_.disconnect();
 240 }
 241
 242
 243 void LyXView::showErrorList(string const & error_type)
 244 {
 245         ErrorList & el = buffer()->errorList(error_type);
 246         if (!el.empty()) {
 247                 getDialogs().show("errorlist", error_type);
 248         }
 249 }
 250
 251
 252 void LyXView::showDialog(string const & name)
 253 {
 254         getDialogs().show(name);
 255 }
 256
 257
 258 void LyXView::showDialogWithData(string const & name, string const & data)
 259 {
 260         getDialogs().show(name, data);
 261 }
 262
 263
 264 void LyXView::showInsetDialog(string const & name, string const & data,
 265                 InsetBase * inset)
 266 {
 267         getDialogs().show(name, data, inset);
 268 }
 269
 270
 271 void LyXView::updateDialog(string const & name, string const & data)
 272 {
 273         if (getDialogs().visible(name))
 274                 getDialogs().update(name, data);
 275 }
 276
 277
 278 void LyXView::showReadonly(bool)
 279 {
 280         updateWindowTitle();
 281         getDialogs().updateBufferDependent(false);
 282 }
 283
 284
 285 BufferView * LyXView::view() const
 286 {
 287         return &work_area_->bufferView();
 288 }
 289
 290
 291 void LyXView::updateToolbars()
 292 {
 293         bool const math =
 294                 work_area_->bufferView().cursor().inMathed();
 295         bool const table =
 296                 lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 297         bool const review =
 298                 lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
 299                 lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
 300
 301         toolbars_->update(math, table, review);
 302         // update redaonly status of open dialogs. This could also be in
 303         // updateMenubar(), but since updateToolbars() and updateMenubar()
 304         // are always called together it is only here.
 305         getDialogs().checkStatus();
 306 }
 307
 308
 309 ToolbarBackend::Flags LyXView::getToolbarState(string const & name)
 310 {
 311         return toolbars_->getToolbarState(name);
 312 }
 313
 314
 315 void LyXView::toggleToolbarState(string const & name)
 316 {
 317         // it is possible to get current toolbar status like this,...
 318         // but I decide to obey the order of ToolbarBackend::flags
 319         // and disregard real toolbar status.
 320         // toolbars_->saveToolbarInfo();
 321         //
 322         // toggle state on/off/auto
 323         toolbars_->toggleToolbarState(name);
 324         // update toolbar
 325         updateToolbars();
 326 }
 327
 328
 329 void LyXView::updateMenubar()
 330 {
 331         menubar_->update();
 332 }
 333
 334
 335 void LyXView::autoSave()
 336 {
 337         lyxerr[Debug::INFO] << "Running autoSave()" << endl;
 338
 339         if (view()->buffer())
 340                 lyx::autoSave(view());
 341 }
 342
 343
 344 void LyXView::resetAutosaveTimer()
 345 {
 346         if (lyxrc.autosave)
 347                 autosave_timeout_->restart();
 348 }
 349
 350
 351 void LyXView::updateLayoutChoice()
 352 {
 353         // Don't show any layouts without a buffer
 354         if (!view()->buffer()) {
 355                 toolbars_->clearLayoutList();
 356                 return;
 357         }
 358
 359         // Update the layout display
 360         if (toolbars_->updateLayoutList(buffer()->params().textclass)) {
 361                 current_layout = buffer()->params().getLyXTextClass().defaultLayoutName();
 362         }
 363
 364         if (work_area_->bufferView().cursor().inMathed())
 365                 return;
 366
 367         string const & layout =
 368                 work_area_->bufferView().cursor().paragraph().layout()->name();
 369
 370         if (layout != current_layout) {
 371                 toolbars_->setLayout(layout);
 372                 current_layout = layout;
 373         }
 374 }
 375
 376
 377 void LyXView::updateWindowTitle()
 378 {
 379         docstring maximize_title = lyx::from_ascii("LyX");
 380         docstring minimize_title = lyx::from_ascii("LyX");
 381
 382         if (view()->buffer()) {
 383                 string const cur_title = buffer()->fileName();
 384                 if (!cur_title.empty()) {
 385                         maximize_title += ": " + makeDisplayPath(cur_title, 30);
 386                         minimize_title = lyx::from_utf8(onlyFilename(cur_title));
 387                         if (!buffer()->isClean()) {
 388                                 maximize_title += _(" (changed)");
 389                                 minimize_title += lyx::char_type('*');
 390                         }
 391                         if (buffer()->isReadonly())
 392                                 maximize_title += _(" (read only)");
 393                 }
 394         }
 395
 396         setWindowTitle(maximize_title, minimize_title);
 397 }
 398
 399
 400 void LyXView::dispatch(FuncRequest const & cmd)
 401 {
 402         theLyXFunc().setLyXView(this);
 403         lyx::dispatch(cmd);
 404 }
 405
 406
 407 Buffer const * const LyXView::updateInset(InsetBase const * inset) const
 408 {
 409         Buffer const * buffer_ptr = 0;
 410         if (inset) {
 411                 buffer_ptr = work_area_->bufferView().buffer();
 412                 // No FitCursor:
 413                 work_area_->bufferView().update(Update::Force);
 414                 work_area_->redraw();
 415         }
 416         return buffer_ptr;
 417 }
 418
 419
 420 } // namespace lyx