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 "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 #ifdef HAVE_SYS_TIME_H
  46 # include <sys/time.h>
  47 #endif
  48 #ifdef HAVE_UNISTD_H
  49 # include <unistd.h>
  50 #endif
  51
  52 using lyx::frontend::Gui;
  53 using lyx::frontend::WorkArea;
  54
  55 using lyx::support::bformat;
  56 using lyx::support::makeDisplayPath;
  57 using lyx::support::onlyFilename;
  58
  59 using std::endl;
  60 using std::string;
  61
  62 using lyx::frontend::ControlCommandBuffer;
  63
  64 string current_layout;
  65
  66 Gui & LyXView::gui()
  67 {
  68         return owner_;
  69 }
  70
  71
  72 LyXView::LyXView(Gui & owner)
  73         : work_area_(0),
  74           owner_(owner),
  75           toolbars_(new Toolbars(*this)),
  76           intl_(new Intl),
  77           autosave_timeout_(new Timeout(5000)),
  78           lyxfunc_(new LyXFunc(this)),
  79           dialogs_(new Dialogs(*this)),
  80           controlcommand_(new ControlCommandBuffer(*this))
  81 {
  82         lyxerr[Debug::INIT] << "Initializing LyXFunc" << endl;
  83 }
  84
  85 LyXView::~LyXView()
  86 {
  87 }
  88
  89
  90 void LyXView::setWorkArea(WorkArea * work_area)
  91 {
  92         work_area_ = work_area;
  93 }
  94
  95
  96 void LyXView::redrawWorkArea()
  97 {
  98         work_area_->redraw();
  99         updateStatusBar();
 100 }
 101
 102
 103 WorkArea * LyXView::workArea()
 104 {
 105         return work_area_;
 106 }
 107
 108
 109 void LyXView::init()
 110 {
 111         updateLayoutChoice();
 112         updateMenubar();
 113
 114         // Start autosave timer
 115         if (lyxrc.autosave) {
 116                 autosave_timeout_->timeout.connect(boost::bind(&LyXView::autoSave, this));
 117                 autosave_timeout_->setTimeout(lyxrc.autosave * 1000);
 118                 autosave_timeout_->start();
 119         }
 120
 121         intl_->initKeyMapper(lyxrc.use_kbmap);
 122 }
 123
 124
 125 Buffer * LyXView::buffer() const
 126 {
 127         return work_area_->bufferView().buffer();
 128 }
 129
 130
 131 void LyXView::setBuffer(Buffer * b)
 132 {
 133         if (work_area_->bufferView().buffer())
 134                 disconnectBuffer();
 135
 136         work_area_->bufferView().setBuffer(b);
 137         updateMenubar();
 138         updateToolbars();
 139         updateLayoutChoice();
 140         updateWindowTitle();
 141         if (b) {
 142                 connectBuffer(*b);
 143                 setLayout(work_area_->bufferView().firstLayout());
 144         }
 145         redrawWorkArea();
 146 }
 147
 148
 149 bool LyXView::loadLyXFile(string const & filename, bool tolastfiles)
 150 {
 151         if (work_area_->bufferView().buffer())
 152                 disconnectBuffer();
 153
 154         bool loaded = work_area_->bufferView().loadLyXFile(filename, tolastfiles);
 155         updateMenubar();
 156         updateToolbars();
 157         updateLayoutChoice();
 158         updateWindowTitle();
 159         if (loaded) {
 160                 connectBuffer(*work_area_->bufferView().buffer());
 161                 setLayout(work_area_->bufferView().firstLayout());
 162         }
 163         redrawWorkArea();
 164         return loaded;
 165 }
 166
 167
 168 void LyXView::connectBuffer(Buffer & buf)
 169 {
 170         if (errorsConnection_.connected())
 171                 disconnectBuffer();
 172
 173         // FIXME: (Abdel 15/07/2006) The connection below is not used for
 174         // now.
 175         // Nevertheless, it would be a very good idea to replace all manual
 176         // calls of showErrorList to a call of the new modified
 177         // "Buffer::errors" boost signal.
 178         errorsConnection_ =
 179                 buf.errors.connect(
 180                         boost::bind(&LyXView::showErrorList, this, _1));
 181
 182         messageConnection_ =
 183                 buf.message.connect(
 184                         boost::bind(&LyXView::message, this, _1));
 185
 186         busyConnection_ =
 187                 buf.busy.connect(
 188                         boost::bind(&LyXView::busy, this, _1));
 189
 190         titleConnection_ =
 191                 buf.updateTitles.connect(
 192                         boost::bind(&LyXView::updateWindowTitle, this));
 193
 194         timerConnection_ =
 195                 buf.resetAutosaveTimers.connect(
 196                         boost::bind(&LyXView::resetAutosaveTimer, this));
 197
 198         readonlyConnection_ =
 199                 buf.readonly.connect(
 200                         boost::bind(&LyXView::showReadonly, this, _1));
 201
 202         closingConnection_ =
 203                 buf.closing.connect(
 204                         boost::bind(&LyXView::setBuffer, this, (Buffer *)0));
 205 }
 206
 207
 208 void LyXView::disconnectBuffer()
 209 {
 210         messageConnection_.disconnect();
 211         busyConnection_.disconnect();
 212         titleConnection_.disconnect();
 213         timerConnection_.disconnect();
 214         readonlyConnection_.disconnect();
 215         closingConnection_.disconnect();
 216 }
 217
 218
 219 void LyXView::showErrorList(string const & action)
 220 {
 221         Buffer * b = work_area_->bufferView().buffer();
 222         if (!b->getErrorList().empty()) {
 223                 string const title = bformat(_("%1$s Errors (%2$s)"),
 224                         action, buffer()->fileName());
 225                 getDialogs().show("errorlist", title);
 226         }
 227 }
 228
 229
 230 void LyXView::showReadonly(bool)
 231 {
 232         updateWindowTitle();
 233         getDialogs().updateBufferDependent(false);
 234 }
 235
 236
 237 BufferView * LyXView::view() const
 238 {
 239         return &work_area_->bufferView();
 240 }
 241
 242
 243 void LyXView::setLayout(string const & layout)
 244 {
 245         toolbars_->setLayout(layout);
 246 }
 247
 248
 249 void LyXView::updateToolbars()
 250 {
 251         bool const math = work_area_->bufferView().cursor().inMathed();
 252         bool const table =
 253                 getLyXFunc().getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 254         toolbars_->update(math, table);
 255         // update redaonly status of open dialogs. This could also be in
 256         // updateMenubar(), but since updateToolbars() and updateMenubar()
 257         // are always called together it is only here.
 258         getDialogs().checkStatus();
 259 }
 260
 261
 262 void LyXView::updateMenubar()
 263 {
 264         menubar_->update();
 265 }
 266
 267
 268 void LyXView::autoSave()
 269 {
 270         lyxerr[Debug::INFO] << "Running autoSave()" << endl;
 271
 272         if (view()->available()) {
 273                 ::autoSave(view());
 274         }
 275 }
 276
 277
 278 void LyXView::resetAutosaveTimer()
 279 {
 280         if (lyxrc.autosave)
 281                 autosave_timeout_->restart();
 282 }
 283
 284
 285 void LyXView::updateLayoutChoice()
 286 {
 287         // Don't show any layouts without a buffer
 288         if (!view()->buffer()) {
 289                 toolbars_->clearLayoutList();
 290                 return;
 291         }
 292
 293         // Update the layout display
 294         if (toolbars_->updateLayoutList(buffer()->params().textclass)) {
 295                 current_layout = buffer()->params().getLyXTextClass().defaultLayoutName();
 296         }
 297
 298         if (work_area_->bufferView().cursor().inMathed())
 299                 return;
 300
 301         string const & layout =
 302                 work_area_->bufferView().cursor().paragraph().layout()->name();
 303
 304         if (layout != current_layout) {
 305                 toolbars_->setLayout(layout);
 306                 current_layout = layout;
 307         }
 308 }
 309
 310
 311 void LyXView::updateWindowTitle()
 312 {
 313         static string last_title = "LyX";
 314         string maximize_title = "LyX";
 315         string minimize_title = "LyX";
 316
 317         if (view()->available()) {
 318                 string const cur_title = buffer()->fileName();
 319                 if (!cur_title.empty()) {
 320                         maximize_title += ": " + makeDisplayPath(cur_title, 30);
 321                         minimize_title = onlyFilename(cur_title);
 322                         if (!buffer()->isClean()) {
 323                                 maximize_title += _(" (changed)");
 324                                 minimize_title += '*';
 325                         }
 326                         if (buffer()->isReadonly())
 327                                 maximize_title += _(" (read only)");
 328                 }
 329         }
 330
 331         if (maximize_title != last_title) {
 332                 setWindowTitle(maximize_title, minimize_title);
 333                 last_title = maximize_title;
 334         }
 335 }
 336
 337
 338 void LyXView::dispatch(FuncRequest const & cmd)
 339 {
 340         getLyXFunc().dispatch(cmd);
 341 }
 342
 343
 344 Buffer const * const LyXView::updateInset(InsetBase const * inset) const
 345 {
 346         Buffer const * buffer_ptr = 0;
 347         if (inset) {
 348                 buffer_ptr = work_area_->bufferView().buffer();
 349                 // No FitCursor:
 350                 work_area_->bufferView().update(Update::Force);
 351         }
 352         return buffer_ptr;
 353 }