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 "Gui.h"
  16 #include "Dialogs.h"
  17 #include "Timeout.h"
  18 #include "Toolbars.h"
  19 #include "Menubar.h"
  20 #include "WorkArea.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 #ifdef HAVE_SYS_TIME_H
  47 # include <sys/time.h>
  48 #endif
  49 #ifdef HAVE_UNISTD_H
  50 # include <unistd.h>
  51 #endif
  52
  53 using lyx::frontend::Gui;
  54 using lyx::frontend::WorkArea;
  55
  56 using lyx::docstring;
  57 using lyx::support::bformat;
  58 using lyx::support::makeDisplayPath;
  59 using lyx::support::onlyFilename;
  60
  61 using std::endl;
  62 using std::string;
  63
  64 using lyx::frontend::ControlCommandBuffer;
  65
  66 string current_layout;
  67
  68 Gui & LyXView::gui()
  69 {
  70         return owner_;
  71 }
  72
  73
  74 LyXView::LyXView(Gui & owner)
  75         : work_area_(0),
  76           owner_(owner),
  77           toolbars_(new Toolbars(*this)),
  78           autosave_timeout_(new Timeout(5000)),
  79           lyxfunc_(new LyXFunc(this)),
  80           dialogs_(new Dialogs(*this)),
  81           controlcommand_(new ControlCommandBuffer(*this))
  82 {
  83         lyxerr[Debug::INIT] << "Initializing LyXFunc" << endl;
  84 }
  85
  86
  87 LyXView::~LyXView()
  88 {
  89 }
  90
  91
  92 void LyXView::setWorkArea(WorkArea * work_area)
  93 {
  94         work_area_ = work_area;
  95 }
  96
  97
  98 void LyXView::redrawWorkArea()
  99 {
 100         work_area_->redraw();
 101         updateStatusBar();
 102 }
 103
 104
 105 WorkArea * LyXView::workArea()
 106 {
 107         return work_area_;
 108 }
 109
 110
 111 void LyXView::init()
 112 {
 113         updateLayoutChoice();
 114         updateMenubar();
 115
 116         // Start autosave timer
 117         if (lyxrc.autosave) {
 118                 autosave_timeout_->timeout.connect(boost::bind(&LyXView::autoSave, this));
 119                 autosave_timeout_->setTimeout(lyxrc.autosave * 1000);
 120                 autosave_timeout_->start();
 121         }
 122 }
 123
 124
 125 Buffer * LyXView::buffer() const
 126 {
 127         return work_area_->bufferView().buffer();
 128 }
 129
 130
 131 void LyXView::setBuffer(Buffer * b)
 132 {
 133         if (work_area_->bufferView().buffer())
 134                 disconnectBuffer();
 135
 136         if (!b)
 137                 getDialogs().hideBufferDependent();
 138
 139         work_area_->bufferView().setBuffer(b);
 140
 141         if (work_area_->bufferView().buffer()) {
 142                 // Buffer-dependent dialogs should be updated or
 143                 // hidden. This should go here because some dialogs (eg ToC)
 144                 // require bv_->text.
 145                 getDialogs().updateBufferDependent(true);
 146                 connectBuffer(*work_area_->bufferView().buffer());
 147         }
 148
 149         updateMenubar();
 150         updateToolbars();
 151         updateLayoutChoice();
 152         updateWindowTitle();
 153         redrawWorkArea();
 154 }
 155
 156
 157 bool LyXView::loadLyXFile(string const & filename, bool tolastfiles)
 158 {
 159         if (work_area_->bufferView().buffer())
 160                 disconnectBuffer();
 161
 162         bool loaded = work_area_->bufferView().loadLyXFile(filename, tolastfiles);
 163
 164         updateMenubar();
 165         updateToolbars();
 166         updateLayoutChoice();
 167         updateWindowTitle();
 168         if (loaded) {
 169                 connectBuffer(*work_area_->bufferView().buffer());
 170                 showErrorList("Parse");
 171         }
 172         redrawWorkArea();
 173         return loaded;
 174 }
 175
 176
 177 void LyXView::connectBuffer(Buffer & buf)
 178 {
 179         if (errorsConnection_.connected())
 180                 disconnectBuffer();
 181
 182         errorsConnection_ =
 183                 buf.errors.connect(
 184                         boost::bind(&LyXView::showErrorList, this, _1));
 185
 186         messageConnection_ =
 187                 buf.message.connect(
 188                         boost::bind(&LyXView::message, this, _1));
 189
 190         busyConnection_ =
 191                 buf.busy.connect(
 192                         boost::bind(&LyXView::busy, this, _1));
 193
 194         titleConnection_ =
 195                 buf.updateTitles.connect(
 196                         boost::bind(&LyXView::updateWindowTitle, this));
 197
 198         timerConnection_ =
 199                 buf.resetAutosaveTimers.connect(
 200                         boost::bind(&LyXView::resetAutosaveTimer, this));
 201
 202         readonlyConnection_ =
 203                 buf.readonly.connect(
 204                         boost::bind(&LyXView::showReadonly, this, _1));
 205
 206         closingConnection_ =
 207                 buf.closing.connect(
 208                         boost::bind(&LyXView::setBuffer, this, (Buffer *)0));
 209 }
 210
 211
 212 void LyXView::disconnectBuffer()
 213 {
 214         messageConnection_.disconnect();
 215         busyConnection_.disconnect();
 216         titleConnection_.disconnect();
 217         timerConnection_.disconnect();
 218         readonlyConnection_.disconnect();
 219         closingConnection_.disconnect();
 220 }
 221
 222
 223 void LyXView::connectBufferView(BufferView & bv)
 224 {
 225         show_dialog_connection_ = bv.showDialog.connect(
 226                         boost::bind(&LyXView::showDialog, this, _1));
 227         show_dialog_with_data_connection_ = bv.showDialogWithData.connect(
 228                         boost::bind(&LyXView::showDialogWithData, this, _1, _2));
 229         show_inset_dialog_connection_ = bv.showInsetDialog.connect(
 230                         boost::bind(&LyXView::showInsetDialog, this, _1, _2, _3));
 231         update_dialog_connection_ = bv.updateDialog.connect(
 232                         boost::bind(&LyXView::updateDialog, this, _1, _2));
 233 }
 234
 235
 236 void LyXView::disconnectBufferView()
 237 {
 238         show_dialog_connection_.disconnect();
 239         show_dialog_with_data_connection_.disconnect();
 240         show_inset_dialog_connection_.disconnect();
 241         update_dialog_connection_.disconnect();
 242 }
 243
 244
 245 void LyXView::showErrorList(string const & error_type)
 246 {
 247         ErrorList & el = buffer()->errorList(error_type);
 248         if (!el.empty()) {
 249                 getDialogs().show("errorlist", error_type);
 250         }
 251 }
 252
 253
 254 void LyXView::showDialog(string const & name)
 255 {
 256         getDialogs().show(name);
 257 }
 258
 259
 260 void LyXView::showDialogWithData(string const & name,
 261                                                                  string const & data)
 262 {
 263         getDialogs().show(name, data);
 264 }
 265
 266
 267 void LyXView::showInsetDialog(string const & name, string const & data,
 268                                                           InsetBase * inset)
 269 {
 270         getDialogs().show(name, data, 0);
 271 }
 272
 273
 274 void LyXView::updateDialog(string const & name, string const & data)
 275 {
 276         if (getDialogs().visible(name))
 277                 getDialogs().update(name, data);
 278 }
 279
 280
 281 void LyXView::showReadonly(bool)
 282 {
 283         updateWindowTitle();
 284         getDialogs().updateBufferDependent(false);
 285 }
 286
 287
 288 BufferView * LyXView::view() const
 289 {
 290         return &work_area_->bufferView();
 291 }
 292
 293
 294 void LyXView::setLayout(string const & layout)
 295 {
 296         toolbars_->setLayout(layout);
 297 }
 298
 299
 300 void LyXView::updateToolbars()
 301 {
 302         bool const math = work_area_->bufferView().cursor().inMathed();
 303         bool const table =
 304                 getLyXFunc().getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 305         toolbars_->update(math, table);
 306         // update redaonly status of open dialogs. This could also be in
 307         // updateMenubar(), but since updateToolbars() and updateMenubar()
 308         // are always called together it is only here.
 309         getDialogs().checkStatus();
 310 }
 311
 312
 313 void LyXView::updateMenubar()
 314 {
 315         menubar_->update();
 316 }
 317
 318
 319 void LyXView::autoSave()
 320 {
 321         lyxerr[Debug::INFO] << "Running autoSave()" << endl;
 322
 323         if (view()->buffer()) {
 324                 ::autoSave(view());
 325         }
 326 }
 327
 328
 329 void LyXView::resetAutosaveTimer()
 330 {
 331         if (lyxrc.autosave)
 332                 autosave_timeout_->restart();
 333 }
 334
 335
 336 void LyXView::updateLayoutChoice()
 337 {
 338         // Don't show any layouts without a buffer
 339         if (!view()->buffer()) {
 340                 toolbars_->clearLayoutList();
 341                 return;
 342         }
 343
 344         // Update the layout display
 345         if (toolbars_->updateLayoutList(buffer()->params().textclass)) {
 346                 current_layout = buffer()->params().getLyXTextClass().defaultLayoutName();
 347         }
 348
 349         if (work_area_->bufferView().cursor().inMathed())
 350                 return;
 351
 352         string const & layout =
 353                 work_area_->bufferView().cursor().paragraph().layout()->name();
 354
 355         if (layout != current_layout) {
 356                 toolbars_->setLayout(layout);
 357                 current_layout = layout;
 358         }
 359 }
 360
 361
 362 void LyXView::updateWindowTitle()
 363 {
 364         static docstring last_title = lyx::from_ascii("LyX");
 365         docstring maximize_title = lyx::from_ascii("LyX");
 366         docstring minimize_title = lyx::from_ascii("LyX");
 367
 368         if (view()->buffer()) {
 369                 string const cur_title = buffer()->fileName();
 370                 if (!cur_title.empty()) {
 371                         maximize_title += lyx::from_ascii(": ") + makeDisplayPath(cur_title, 30);
 372                         minimize_title = lyx::from_utf8(onlyFilename(cur_title));
 373                         if (!buffer()->isClean()) {
 374                                 maximize_title += _(" (changed)");
 375                                 minimize_title += lyx::char_type('*');
 376                         }
 377                         if (buffer()->isReadonly())
 378                                 maximize_title += _(" (read only)");
 379                 }
 380         }
 381
 382         if (maximize_title != last_title) {
 383                 setWindowTitle(maximize_title, minimize_title);
 384                 last_title = maximize_title;
 385         }
 386 }
 387
 388
 389 void LyXView::dispatch(FuncRequest const & cmd)
 390 {
 391         getLyXFunc().dispatch(cmd);
 392 }
 393
 394
 395 Buffer const * const LyXView::updateInset(InsetBase const * inset) const
 396 {
 397         Buffer const * buffer_ptr = 0;
 398         if (inset) {
 399                 buffer_ptr = work_area_->bufferView().buffer();
 400                 // No FitCursor:
 401                 work_area_->bufferView().update(Update::Force);
 402         }
 403         return buffer_ptr;
 404 }