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