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