src/frontends/LyXView.cpp

   1 /**
   2  * \file LyXView.cpp
   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
  16 #include "Dialogs.h"
  17 #include "Toolbars.h"
  18 #include "WorkArea.h"
  19 #include "Gui.h"
  20
  21 #include "Buffer.h"
  22 #include "buffer_funcs.h"
  23 #include "BufferList.h"
  24 #include "BufferParams.h"
  25 #include "BufferView.h"
  26 #include "callback.h"
  27 #include "Cursor.h"
  28 #include "debug.h"
  29 #include "ErrorList.h"
  30 #include "FuncRequest.h"
  31 #include "gettext.h"
  32 #include "Intl.h"
  33 #include "Layout.h"
  34 #include "LyX.h"
  35 #include "LyXFunc.h"
  36 #include "LyXRC.h"
  37 #include "Text.h"
  38 #include "MenuBackend.h"
  39 #include "Paragraph.h"
  40
  41 #include "support/lstrings.h"
  42 #include "support/filetools.h" // OnlyFilename()
  43 #include "support/Timeout.h"
  44
  45 #include <boost/bind.hpp>
  46
  47
  48 #ifdef HAVE_SYS_TIME_H
  49 # include <sys/time.h>
  50 #endif
  51 #ifdef HAVE_UNISTD_H
  52 # include <unistd.h>
  53 #endif
  54
  55 using std::endl;
  56 using std::string;
  57
  58 namespace lyx {
  59
  60 using support::bformat;
  61 using support::FileName;
  62 using support::makeDisplayPath;
  63 using support::onlyFilename;
  64
  65 namespace frontend {
  66
  67 LyXView::LyXView(int id)
  68         : autosave_timeout_(new Timeout(5000)),
  69           dialogs_(new Dialogs(*this)),
  70           id_(id)
  71 {
  72         // Start autosave timer
  73         if (lyxrc.autosave) {
  74                 autosave_timeout_->timeout.connect(boost::bind(&LyXView::autoSave, this));
  75                 autosave_timeout_->setTimeout(lyxrc.autosave * 1000);
  76                 autosave_timeout_->start();
  77         }
  78 }
  79
  80
  81 LyXView::~LyXView()
  82 {
  83         disconnectBuffer();
  84         disconnectBufferView();
  85         delete dialogs_;
  86         delete autosave_timeout_;
  87 }
  88
  89
  90 Buffer * LyXView::buffer()
  91 {
  92         WorkArea * work_area = currentWorkArea();
  93         if (work_area)
  94                 return &work_area->bufferView().buffer();
  95         return 0;
  96 }
  97
  98
  99 Buffer const * LyXView::buffer() const
 100 {
 101         WorkArea const * work_area = currentWorkArea();
 102         if (work_area)
 103                 return &work_area->bufferView().buffer();
 104         return 0;
 105 }
 106
 107
 108 void LyXView::setBuffer(Buffer * newBuffer)
 109 {
 110         BOOST_ASSERT(newBuffer);
 111         busy(true);
 112
 113         WorkArea * wa = workArea(*newBuffer);
 114         if (wa == 0) {
 115                 updateLabels(*newBuffer->getMasterBuffer());
 116                 wa = addWorkArea(*newBuffer);
 117         } else {
 118                 //Disconnect the old buffer...there's no new one.
 119                 disconnectBuffer();
 120         }
 121         connectBuffer(*newBuffer);
 122         connectBufferView(wa->bufferView());
 123         setCurrentWorkArea(wa);
 124
 125         busy(false);
 126 }
 127
 128
 129 Buffer * LyXView::loadLyXFile(FileName const & filename, bool tolastfiles)
 130 {
 131         busy(true);
 132
 133         Buffer * newBuffer = checkAndLoadLyXFile(filename);
 134
 135         if (!newBuffer) {
 136                 message(_("Document not loaded."));
 137                 updateStatusBar();
 138                 busy(false);
 139                 return 0;
 140         }
 141
 142         WorkArea * wa = workArea(*newBuffer);
 143         if (wa == 0)
 144                 wa = addWorkArea(*newBuffer);
 145
 146         // scroll to the position when the file was last closed
 147         if (lyxrc.use_lastfilepos) {
 148                 pit_type pit;
 149                 pos_type pos;
 150                 boost::tie(pit, pos) = LyX::ref().session().lastFilePos().load(filename);
 151                 // if successfully move to pit (returned par_id is not zero),
 152                 // update metrics and reset font
 153                 wa->bufferView().moveToPosition(pit, pos, 0, 0);
 154         }
 155
 156         if (tolastfiles)
 157                 LyX::ref().session().lastFiles().add(filename);
 158
 159         busy(false);
 160         return newBuffer;
 161 }
 162
 163
 164 void LyXView::connectBuffer(Buffer & buf)
 165 {
 166         if (errorsConnection_.connected())
 167                 disconnectBuffer();
 168
 169         bufferStructureChangedConnection_ =
 170                 buf.getMasterBuffer()->structureChanged.connect(
 171                         boost::bind(&LyXView::updateToc, this));
 172
 173         bufferEmbeddingChangedConnection_ =
 174                 buf.embeddingChanged.connect(
 175                         boost::bind(&LyXView::updateEmbeddedFiles, this));
 176
 177         errorsConnection_ =
 178                 buf.errors.connect(
 179                         boost::bind(&LyXView::showErrorList, this, _1));
 180
 181         messageConnection_ =
 182                 buf.message.connect(
 183                         boost::bind(&LyXView::message, this, _1));
 184
 185         busyConnection_ =
 186                 buf.busy.connect(
 187                         boost::bind(&LyXView::busy, this, _1));
 188
 189         titleConnection_ =
 190                 buf.updateTitles.connect(
 191                         boost::bind(&LyXView::updateWindowTitle, this));
 192
 193         timerConnection_ =
 194                 buf.resetAutosaveTimers.connect(
 195                         boost::bind(&LyXView::resetAutosaveTimer, this));
 196
 197         readonlyConnection_ =
 198                 buf.readonly.connect(
 199                         boost::bind(&LyXView::showReadonly, this, _1));
 200 }
 201
 202
 203 void LyXView::disconnectBuffer()
 204 {
 205         errorsConnection_.disconnect();
 206         bufferStructureChangedConnection_.disconnect();
 207         bufferEmbeddingChangedConnection_.disconnect();
 208         messageConnection_.disconnect();
 209         busyConnection_.disconnect();
 210         titleConnection_.disconnect();
 211         timerConnection_.disconnect();
 212         readonlyConnection_.disconnect();
 213 }
 214
 215
 216 void LyXView::connectBufferView(BufferView & bv)
 217 {
 218         message_connection_ = bv.message.connect(
 219                         boost::bind(&LyXView::message, this, _1));
 220         show_dialog_connection_ = bv.showDialog.connect(
 221                         boost::bind(&LyXView::showDialog, this, _1));
 222         show_dialog_with_data_connection_ = bv.showDialogWithData.connect(
 223                         boost::bind(&LyXView::showDialogWithData, this, _1, _2));
 224         show_inset_dialog_connection_ = bv.showInsetDialog.connect(
 225                         boost::bind(&LyXView::showInsetDialog, this, _1, _2, _3));
 226         update_dialog_connection_ = bv.updateDialog.connect(
 227                         boost::bind(&LyXView::updateDialog, this, _1, _2));
 228 }
 229
 230
 231 void LyXView::disconnectBufferView()
 232 {
 233         message_connection_.disconnect();
 234         show_dialog_connection_.disconnect();
 235         show_dialog_with_data_connection_.disconnect();
 236         show_inset_dialog_connection_.disconnect();
 237         update_dialog_connection_.disconnect();
 238 }
 239
 240
 241 void LyXView::showErrorList(string const & error_type)
 242 {
 243         ErrorList & el = buffer()->errorList(error_type);
 244         if (!el.empty()) {
 245                 getDialogs().show("errorlist", error_type);
 246         }
 247 }
 248
 249
 250 void LyXView::showDialog(string const & name)
 251 {
 252         getDialogs().show(name);
 253 }
 254
 255
 256 void LyXView::showDialogWithData(string const & name, string const & data)
 257 {
 258         getDialogs().show(name, data);
 259 }
 260
 261
 262 void LyXView::showInsetDialog(string const & name, string const & data,
 263                 Inset * inset)
 264 {
 265         getDialogs().show(name, data, inset);
 266 }
 267
 268
 269 void LyXView::updateDialog(string const & name, string const & data)
 270 {
 271         if (getDialogs().visible(name))
 272                 getDialogs().update(name, data);
 273 }
 274
 275
 276 void LyXView::showReadonly(bool)
 277 {
 278         updateWindowTitle();
 279         getDialogs().updateBufferDependent(false);
 280 }
 281
 282
 283 BufferView * LyXView::view()
 284 {
 285         WorkArea * wa = currentWorkArea();
 286         return wa? &wa->bufferView() : 0;
 287 }
 288
 289
 290 void LyXView::updateToc()
 291 {
 292         updateDialog("toc", "");
 293 }
 294
 295
 296 void LyXView::updateEmbeddedFiles()
 297 {
 298         updateDialog("embedding", "");
 299 }
 300
 301
 302 void LyXView::autoSave()
 303 {
 304         LYXERR(Debug::INFO) << "Running autoSave()" << endl;
 305
 306         if (buffer())
 307                 lyx::autoSave(view());
 308 }
 309
 310
 311 void LyXView::resetAutosaveTimer()
 312 {
 313         if (lyxrc.autosave)
 314                 autosave_timeout_->restart();
 315 }
 316
 317
 318 void LyXView::updateWindowTitle()
 319 {
 320         docstring maximize_title = from_ascii("LyX");
 321         docstring minimize_title = from_ascii("LyX");
 322
 323         Buffer * buf = buffer();
 324         if (buf) {
 325                 string const cur_title = buf->fileName();
 326                 if (!cur_title.empty()) {
 327                         maximize_title += ": " + makeDisplayPath(cur_title, 30);
 328                         minimize_title = lyx::from_utf8(onlyFilename(cur_title));
 329                         if (!buf->isClean()) {
 330                                 maximize_title += _(" (changed)");
 331                                 minimize_title += char_type('*');
 332                         }
 333                         if (buf->isReadonly())
 334                                 maximize_title += _(" (read only)");
 335                 }
 336         }
 337
 338         setWindowTitle(maximize_title, minimize_title);
 339 }
 340
 341
 342 void LyXView::dispatch(FuncRequest const & cmd)
 343 {
 344         string const argument = to_utf8(cmd.argument());
 345         switch(cmd.action) {
 346                 case LFUN_BUFFER_SWITCH:
 347                         setBuffer(theBufferList().getBuffer(to_utf8(cmd.argument())));
 348                         break;
 349                 default:
 350                         theLyXFunc().setLyXView(this);
 351                         lyx::dispatch(cmd);
 352         }
 353 }
 354
 355
 356 Buffer const * LyXView::updateInset(Inset const * inset)
 357 {
 358         WorkArea * work_area = currentWorkArea();
 359         if (!work_area)
 360                 return 0;
 361
 362         if (inset) {
 363                 BOOST_ASSERT(work_area);
 364                 work_area->scheduleRedraw();
 365         }
 366         return &work_area->bufferView().buffer();
 367 }
 368
 369
 370 } // namespace frontend
 371 } // namespace lyx