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