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                 // Buffer-dependent dialogs should be updated or
 144                 // hidden. This should go here because some dialogs (eg ToC)
 145                 // require bv_->text.
 146                 getDialogs().updateBufferDependent(true);
 147                 connectBuffer(*work_area_->bufferView().buffer());
 148         }
 149
 150         updateMenubar();
 151         updateToolbars();
 152         updateLayoutChoice();
 153         updateWindowTitle();
 154         redrawWorkArea();
 155 }
 156
 157
 158 bool LyXView::loadLyXFile(string const & filename, bool tolastfiles)
 159 {
 160         if (work_area_->bufferView().buffer())
 161                 disconnectBuffer();
 162
 163         bool loaded = work_area_->bufferView().loadLyXFile(filename, tolastfiles);
 164
 165         updateMenubar();
 166         updateToolbars();
 167         updateLayoutChoice();
 168         updateWindowTitle();
 169         if (loaded) {
 170                 connectBuffer(*work_area_->bufferView().buffer());
 171                 showErrorList("Parse");
 172         }
 173         redrawWorkArea();
 174         return loaded;
 175 }
 176
 177
 178 void LyXView::connectBuffer(Buffer & buf)
 179 {
 180         if (errorsConnection_.connected())
 181                 disconnectBuffer();
 182
 183         errorsConnection_ =
 184                 buf.errors.connect(
 185                         boost::bind(&LyXView::showErrorList, this, _1));
 186
 187         messageConnection_ =
 188                 buf.message.connect(
 189                         boost::bind(&LyXView::message, this, _1));
 190
 191         busyConnection_ =
 192                 buf.busy.connect(
 193                         boost::bind(&LyXView::busy, this, _1));
 194
 195         titleConnection_ =
 196                 buf.updateTitles.connect(
 197                         boost::bind(&LyXView::updateWindowTitle, this));
 198
 199         timerConnection_ =
 200                 buf.resetAutosaveTimers.connect(
 201                         boost::bind(&LyXView::resetAutosaveTimer, this));
 202
 203         readonlyConnection_ =
 204                 buf.readonly.connect(
 205                         boost::bind(&LyXView::showReadonly, this, _1));
 206
 207         closingConnection_ =
 208                 buf.closing.connect(
 209                         boost::bind(&LyXView::setBuffer, this, (Buffer *)0));
 210 }
 211
 212
 213 void LyXView::disconnectBuffer()
 214 {
 215         messageConnection_.disconnect();
 216         busyConnection_.disconnect();
 217         titleConnection_.disconnect();
 218         timerConnection_.disconnect();
 219         readonlyConnection_.disconnect();
 220         closingConnection_.disconnect();
 221 }
 222
 223
 224 void LyXView::showErrorList(string const & error_type)
 225 {
 226         ErrorList & el = buffer()->errorList(error_type);
 227         if (!el.empty()) {
 228                 getDialogs().show("errorlist", error_type);
 229         }
 230 }
 231
 232
 233 void LyXView::showReadonly(bool)
 234 {
 235         updateWindowTitle();
 236         getDialogs().updateBufferDependent(false);
 237 }
 238
 239
 240 BufferView * LyXView::view() const
 241 {
 242         return &work_area_->bufferView();
 243 }
 244
 245
 246 void LyXView::setLayout(string const & layout)
 247 {
 248         toolbars_->setLayout(layout);
 249 }
 250
 251
 252 void LyXView::updateToolbars()
 253 {
 254         bool const math = work_area_->bufferView().cursor().inMathed();
 255         bool const table =
 256                 getLyXFunc().getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 257         toolbars_->update(math, table);
 258         // update redaonly status of open dialogs. This could also be in
 259         // updateMenubar(), but since updateToolbars() and updateMenubar()
 260         // are always called together it is only here.
 261         getDialogs().checkStatus();
 262 }
 263
 264
 265 void LyXView::updateMenubar()
 266 {
 267         menubar_->update();
 268 }
 269
 270
 271 void LyXView::autoSave()
 272 {
 273         lyxerr[Debug::INFO] << "Running autoSave()" << endl;
 274
 275         if (view()->available()) {
 276                 ::autoSave(view());
 277         }
 278 }
 279
 280
 281 void LyXView::resetAutosaveTimer()
 282 {
 283         if (lyxrc.autosave)
 284                 autosave_timeout_->restart();
 285 }
 286
 287
 288 void LyXView::updateLayoutChoice()
 289 {
 290         // Don't show any layouts without a buffer
 291         if (!view()->buffer()) {
 292                 toolbars_->clearLayoutList();
 293                 return;
 294         }
 295
 296         // Update the layout display
 297         if (toolbars_->updateLayoutList(buffer()->params().textclass)) {
 298                 current_layout = buffer()->params().getLyXTextClass().defaultLayoutName();
 299         }
 300
 301         if (work_area_->bufferView().cursor().inMathed())
 302                 return;
 303
 304         string const & layout =
 305                 work_area_->bufferView().cursor().paragraph().layout()->name();
 306
 307         if (layout != current_layout) {
 308                 toolbars_->setLayout(layout);
 309                 current_layout = layout;
 310         }
 311 }
 312
 313
 314 void LyXView::updateWindowTitle()
 315 {
 316         static string last_title = "LyX";
 317         string maximize_title = "LyX";
 318         string minimize_title = "LyX";
 319
 320         if (view()->available()) {
 321                 string const cur_title = buffer()->fileName();
 322                 if (!cur_title.empty()) {
 323                         maximize_title += ": " + makeDisplayPath(cur_title, 30);
 324                         minimize_title = onlyFilename(cur_title);
 325                         if (!buffer()->isClean()) {
 326                                 maximize_title += lyx::to_utf8(_(" (changed)"));
 327                                 minimize_title += '*';
 328                         }
 329                         if (buffer()->isReadonly())
 330                                 maximize_title += lyx::to_utf8(_(" (read only)"));
 331                 }
 332         }
 333
 334         if (maximize_title != last_title) {
 335                 setWindowTitle(maximize_title, minimize_title);
 336                 last_title = maximize_title;
 337         }
 338 }
 339
 340
 341 void LyXView::dispatch(FuncRequest const & cmd)
 342 {
 343         getLyXFunc().dispatch(cmd);
 344 }
 345
 346
 347 Buffer const * const LyXView::updateInset(InsetBase const * inset) const
 348 {
 349         Buffer const * buffer_ptr = 0;
 350         if (inset) {
 351                 buffer_ptr = work_area_->bufferView().buffer();
 352                 // No FitCursor:
 353                 work_area_->bufferView().update(Update::Force);
 354         }
 355         return buffer_ptr;
 356 }