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                 setLayout(work_area_->bufferView().firstLayout());
 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                 setLayout(work_area_->bufferView().firstLayout());
 173                 showErrorList("Parse");
 174         }
 175         redrawWorkArea();
 176         return loaded;
 177 }
 178
 179
 180 void LyXView::connectBuffer(Buffer & buf)
 181 {
 182         if (errorsConnection_.connected())
 183                 disconnectBuffer();
 184
 185         errorsConnection_ =
 186                 buf.errors.connect(
 187                         boost::bind(&LyXView::showErrorList, this, _1));
 188
 189         messageConnection_ =
 190                 buf.message.connect(
 191                         boost::bind(&LyXView::message, this, _1));
 192
 193         busyConnection_ =
 194                 buf.busy.connect(
 195                         boost::bind(&LyXView::busy, this, _1));
 196
 197         titleConnection_ =
 198                 buf.updateTitles.connect(
 199                         boost::bind(&LyXView::updateWindowTitle, this));
 200
 201         timerConnection_ =
 202                 buf.resetAutosaveTimers.connect(
 203                         boost::bind(&LyXView::resetAutosaveTimer, this));
 204
 205         readonlyConnection_ =
 206                 buf.readonly.connect(
 207                         boost::bind(&LyXView::showReadonly, this, _1));
 208
 209         closingConnection_ =
 210                 buf.closing.connect(
 211                         boost::bind(&LyXView::setBuffer, this, (Buffer *)0));
 212 }
 213
 214
 215 void LyXView::disconnectBuffer()
 216 {
 217         messageConnection_.disconnect();
 218         busyConnection_.disconnect();
 219         titleConnection_.disconnect();
 220         timerConnection_.disconnect();
 221         readonlyConnection_.disconnect();
 222         closingConnection_.disconnect();
 223 }
 224
 225
 226 void LyXView::showErrorList(string const & error_type)
 227 {
 228         ErrorList & el = buffer()->errorList(error_type);
 229         if (!el.empty()) {
 230                 getDialogs().show("errorlist", error_type);
 231         }
 232 }
 233
 234
 235 void LyXView::showReadonly(bool)
 236 {
 237         updateWindowTitle();
 238         getDialogs().updateBufferDependent(false);
 239 }
 240
 241
 242 BufferView * LyXView::view() const
 243 {
 244         return &work_area_->bufferView();
 245 }
 246
 247
 248 void LyXView::setLayout(string const & layout)
 249 {
 250         toolbars_->setLayout(layout);
 251 }
 252
 253
 254 void LyXView::updateToolbars()
 255 {
 256         bool const math = work_area_->bufferView().cursor().inMathed();
 257         bool const table =
 258                 getLyXFunc().getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 259         toolbars_->update(math, table);
 260         // update redaonly status of open dialogs. This could also be in
 261         // updateMenubar(), but since updateToolbars() and updateMenubar()
 262         // are always called together it is only here.
 263         getDialogs().checkStatus();
 264 }
 265
 266
 267 void LyXView::updateMenubar()
 268 {
 269         menubar_->update();
 270 }
 271
 272
 273 void LyXView::autoSave()
 274 {
 275         lyxerr[Debug::INFO] << "Running autoSave()" << endl;
 276
 277         if (view()->available()) {
 278                 ::autoSave(view());
 279         }
 280 }
 281
 282
 283 void LyXView::resetAutosaveTimer()
 284 {
 285         if (lyxrc.autosave)
 286                 autosave_timeout_->restart();
 287 }
 288
 289
 290 void LyXView::updateLayoutChoice()
 291 {
 292         // Don't show any layouts without a buffer
 293         if (!view()->buffer()) {
 294                 toolbars_->clearLayoutList();
 295                 return;
 296         }
 297
 298         // Update the layout display
 299         if (toolbars_->updateLayoutList(buffer()->params().textclass)) {
 300                 current_layout = buffer()->params().getLyXTextClass().defaultLayoutName();
 301         }
 302
 303         if (work_area_->bufferView().cursor().inMathed())
 304                 return;
 305
 306         string const & layout =
 307                 work_area_->bufferView().cursor().paragraph().layout()->name();
 308
 309         if (layout != current_layout) {
 310                 toolbars_->setLayout(layout);
 311                 current_layout = layout;
 312         }
 313 }
 314
 315
 316 void LyXView::updateWindowTitle()
 317 {
 318         static string last_title = "LyX";
 319         string maximize_title = "LyX";
 320         string minimize_title = "LyX";
 321
 322         if (view()->available()) {
 323                 string const cur_title = buffer()->fileName();
 324                 if (!cur_title.empty()) {
 325                         maximize_title += ": " + makeDisplayPath(cur_title, 30);
 326                         minimize_title = onlyFilename(cur_title);
 327                         if (!buffer()->isClean()) {
 328                                 maximize_title += _(" (changed)");
 329                                 minimize_title += '*';
 330                         }
 331                         if (buffer()->isReadonly())
 332                                 maximize_title += _(" (read only)");
 333                 }
 334         }
 335
 336         if (maximize_title != last_title) {
 337                 setWindowTitle(maximize_title, minimize_title);
 338                 last_title = maximize_title;
 339         }
 340 }
 341
 342
 343 void LyXView::dispatch(FuncRequest const & cmd)
 344 {
 345         getLyXFunc().dispatch(cmd);
 346 }
 347
 348
 349 Buffer const * const LyXView::updateInset(InsetBase const * inset) const
 350 {
 351         Buffer const * buffer_ptr = 0;
 352         if (inset) {
 353                 buffer_ptr = work_area_->bufferView().buffer();
 354                 // No FitCursor:
 355                 work_area_->bufferView().update(Update::Force);
 356         }
 357         return buffer_ptr;
 358 }