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         layout_changed_connection_.disconnect();
 213 }
 214
 215
 216 void LyXView::connectBufferView(BufferView & bv)
 217 {
 218         show_dialog_connection_ = bv.showDialog.connect(
 219                         boost::bind(&LyXView::showDialog, this, _1));
 220         show_dialog_with_data_connection_ = bv.showDialogWithData.connect(
 221                         boost::bind(&LyXView::showDialogWithData, this, _1, _2));
 222         show_inset_dialog_connection_ = bv.showInsetDialog.connect(
 223                         boost::bind(&LyXView::showInsetDialog, this, _1, _2, _3));
 224         update_dialog_connection_ = bv.updateDialog.connect(
 225                         boost::bind(&LyXView::updateDialog, this, _1, _2));
 226         layout_changed_connection_ = bv.layoutChanged.connect(
 227                         boost::bind(&Toolbars::setLayout, toolbars_.get(), _1));
 228 }
 229
 230
 231 void LyXView::disconnectBufferView()
 232 {
 233         show_dialog_connection_.disconnect();
 234         show_dialog_with_data_connection_.disconnect();
 235         show_inset_dialog_connection_.disconnect();
 236         update_dialog_connection_.disconnect();
 237 }
 238
 239
 240 void LyXView::showErrorList(string const & error_type)
 241 {
 242         ErrorList & el = buffer()->errorList(error_type);
 243         if (!el.empty()) {
 244                 getDialogs().show("errorlist", error_type);
 245         }
 246 }
 247
 248
 249 void LyXView::showDialog(string const & name)
 250 {
 251         getDialogs().show(name);
 252 }
 253
 254
 255 void LyXView::showDialogWithData(string const & name,
 256                                                                  string const & data)
 257 {
 258         getDialogs().show(name, data);
 259 }
 260
 261
 262 void LyXView::showInsetDialog(string const & name, string const & data,
 263                                                           InsetBase * inset)
 264 {
 265         getDialogs().show(name, data, 0);
 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() const
 284 {
 285         return &work_area_->bufferView();
 286 }
 287
 288
 289 void LyXView::updateToolbars()
 290 {
 291         bool const math = work_area_->bufferView().cursor().inMathed();
 292         bool const table =
 293                 getLyXFunc().getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 294         toolbars_->update(math, table);
 295         // update redaonly status of open dialogs. This could also be in
 296         // updateMenubar(), but since updateToolbars() and updateMenubar()
 297         // are always called together it is only here.
 298         getDialogs().checkStatus();
 299 }
 300
 301
 302 void LyXView::updateMenubar()
 303 {
 304         menubar_->update();
 305 }
 306
 307
 308 void LyXView::autoSave()
 309 {
 310         lyxerr[Debug::INFO] << "Running autoSave()" << endl;
 311
 312         if (view()->buffer()) {
 313                 ::autoSave(view());
 314         }
 315 }
 316
 317
 318 void LyXView::resetAutosaveTimer()
 319 {
 320         if (lyxrc.autosave)
 321                 autosave_timeout_->restart();
 322 }
 323
 324
 325 void LyXView::updateLayoutChoice()
 326 {
 327         // Don't show any layouts without a buffer
 328         if (!view()->buffer()) {
 329                 toolbars_->clearLayoutList();
 330                 return;
 331         }
 332
 333         // Update the layout display
 334         if (toolbars_->updateLayoutList(buffer()->params().textclass)) {
 335                 current_layout = buffer()->params().getLyXTextClass().defaultLayoutName();
 336         }
 337
 338         if (work_area_->bufferView().cursor().inMathed())
 339                 return;
 340
 341         string const & layout =
 342                 work_area_->bufferView().cursor().paragraph().layout()->name();
 343
 344         if (layout != current_layout) {
 345                 toolbars_->setLayout(layout);
 346                 current_layout = layout;
 347         }
 348 }
 349
 350
 351 void LyXView::updateWindowTitle()
 352 {
 353         static docstring last_title = lyx::from_ascii("LyX");
 354         docstring maximize_title = lyx::from_ascii("LyX");
 355         docstring minimize_title = lyx::from_ascii("LyX");
 356
 357         if (view()->buffer()) {
 358                 string const cur_title = buffer()->fileName();
 359                 if (!cur_title.empty()) {
 360                         maximize_title += lyx::from_ascii(": ") + makeDisplayPath(cur_title, 30);
 361                         minimize_title = lyx::from_utf8(onlyFilename(cur_title));
 362                         if (!buffer()->isClean()) {
 363                                 maximize_title += _(" (changed)");
 364                                 minimize_title += lyx::char_type('*');
 365                         }
 366                         if (buffer()->isReadonly())
 367                                 maximize_title += _(" (read only)");
 368                 }
 369         }
 370
 371         if (maximize_title != last_title) {
 372                 setWindowTitle(maximize_title, minimize_title);
 373                 last_title = maximize_title;
 374         }
 375 }
 376
 377
 378 void LyXView::dispatch(FuncRequest const & cmd)
 379 {
 380         getLyXFunc().dispatch(cmd);
 381 }
 382
 383
 384 Buffer const * const LyXView::updateInset(InsetBase const * inset) const
 385 {
 386         Buffer const * buffer_ptr = 0;
 387         if (inset) {
 388                 buffer_ptr = work_area_->bufferView().buffer();
 389                 // No FitCursor:
 390                 work_area_->bufferView().update(Update::Force);
 391         }
 392         return buffer_ptr;
 393 }