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