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