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