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           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
 123
 124 Buffer * LyXView::buffer() const
 125 {
 126         return work_area_->bufferView().buffer();
 127 }
 128
 129
 130 void LyXView::setBuffer(Buffer * b)
 131 {
 132         if (work_area_->bufferView().buffer())
 133                 disconnectBuffer();
 134
 135         if (!b)
 136                 getDialogs().hideBufferDependent();
 137
 138         work_area_->bufferView().setBuffer(b);
 139
 140         if (work_area_->bufferView().buffer()) {
 141                 // Buffer-dependent dialogs should be updated or
 142                 // hidden. This should go here because some dialogs (eg ToC)
 143                 // require bv_->text.
 144                 getDialogs().updateBufferDependent(true);
 145                 connectBuffer(*work_area_->bufferView().buffer());
 146         }
 147
 148         updateMenubar();
 149         updateToolbars();
 150         updateLayoutChoice();
 151         updateWindowTitle();
 152         redrawWorkArea();
 153 }
 154
 155
 156 bool LyXView::loadLyXFile(string const & filename, bool tolastfiles)
 157 {
 158         if (work_area_->bufferView().buffer())
 159                 disconnectBuffer();
 160
 161         bool loaded = work_area_->bufferView().loadLyXFile(filename, tolastfiles);
 162
 163         updateMenubar();
 164         updateToolbars();
 165         updateLayoutChoice();
 166         updateWindowTitle();
 167         if (loaded) {
 168                 connectBuffer(*work_area_->bufferView().buffer());
 169                 showErrorList("Parse");
 170         }
 171         redrawWorkArea();
 172         return loaded;
 173 }
 174
 175
 176 void LyXView::connectBuffer(Buffer & buf)
 177 {
 178         if (errorsConnection_.connected())
 179                 disconnectBuffer();
 180
 181         errorsConnection_ =
 182                 buf.errors.connect(
 183                         boost::bind(&LyXView::showErrorList, this, _1));
 184
 185         messageConnection_ =
 186                 buf.message.connect(
 187                         boost::bind(&LyXView::message, this, _1));
 188
 189         busyConnection_ =
 190                 buf.busy.connect(
 191                         boost::bind(&LyXView::busy, this, _1));
 192
 193         titleConnection_ =
 194                 buf.updateTitles.connect(
 195                         boost::bind(&LyXView::updateWindowTitle, this));
 196
 197         timerConnection_ =
 198                 buf.resetAutosaveTimers.connect(
 199                         boost::bind(&LyXView::resetAutosaveTimer, this));
 200
 201         readonlyConnection_ =
 202                 buf.readonly.connect(
 203                         boost::bind(&LyXView::showReadonly, this, _1));
 204
 205         closingConnection_ =
 206                 buf.closing.connect(
 207                         boost::bind(&LyXView::setBuffer, this, (Buffer *)0));
 208 }
 209
 210
 211 void LyXView::disconnectBuffer()
 212 {
 213         messageConnection_.disconnect();
 214         busyConnection_.disconnect();
 215         titleConnection_.disconnect();
 216         timerConnection_.disconnect();
 217         readonlyConnection_.disconnect();
 218         closingConnection_.disconnect();
 219 }
 220
 221
 222 void LyXView::showErrorList(string const & error_type)
 223 {
 224         ErrorList & el = buffer()->errorList(error_type);
 225         if (!el.empty()) {
 226                 getDialogs().show("errorlist", error_type);
 227         }
 228 }
 229
 230
 231 void LyXView::showReadonly(bool)
 232 {
 233         updateWindowTitle();
 234         getDialogs().updateBufferDependent(false);
 235 }
 236
 237
 238 BufferView * LyXView::view() const
 239 {
 240         return &work_area_->bufferView();
 241 }
 242
 243
 244 void LyXView::setLayout(string const & layout)
 245 {
 246         toolbars_->setLayout(layout);
 247 }
 248
 249
 250 void LyXView::updateToolbars()
 251 {
 252         bool const math = work_area_->bufferView().cursor().inMathed();
 253         bool const table =
 254                 getLyXFunc().getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 255         toolbars_->update(math, table);
 256         // update redaonly status of open dialogs. This could also be in
 257         // updateMenubar(), but since updateToolbars() and updateMenubar()
 258         // are always called together it is only here.
 259         getDialogs().checkStatus();
 260 }
 261
 262
 263 void LyXView::updateMenubar()
 264 {
 265         menubar_->update();
 266 }
 267
 268
 269 void LyXView::autoSave()
 270 {
 271         lyxerr[Debug::INFO] << "Running autoSave()" << endl;
 272
 273         if (view()->buffer()) {
 274                 ::autoSave(view());
 275         }
 276 }
 277
 278
 279 void LyXView::resetAutosaveTimer()
 280 {
 281         if (lyxrc.autosave)
 282                 autosave_timeout_->restart();
 283 }
 284
 285
 286 void LyXView::updateLayoutChoice()
 287 {
 288         // Don't show any layouts without a buffer
 289         if (!view()->buffer()) {
 290                 toolbars_->clearLayoutList();
 291                 return;
 292         }
 293
 294         // Update the layout display
 295         if (toolbars_->updateLayoutList(buffer()->params().textclass)) {
 296                 current_layout = buffer()->params().getLyXTextClass().defaultLayoutName();
 297         }
 298
 299         if (work_area_->bufferView().cursor().inMathed())
 300                 return;
 301
 302         string const & layout =
 303                 work_area_->bufferView().cursor().paragraph().layout()->name();
 304
 305         if (layout != current_layout) {
 306                 toolbars_->setLayout(layout);
 307                 current_layout = layout;
 308         }
 309 }
 310
 311
 312 void LyXView::updateWindowTitle()
 313 {
 314         static docstring last_title = lyx::from_ascii("LyX");
 315         docstring maximize_title = lyx::from_ascii("LyX");
 316         docstring minimize_title = lyx::from_ascii("LyX");
 317
 318         if (view()->buffer()) {
 319                 string const cur_title = buffer()->fileName();
 320                 if (!cur_title.empty()) {
 321                         maximize_title += lyx::from_ascii(": ") + makeDisplayPath(cur_title, 30);
 322                         minimize_title = lyx::from_utf8(onlyFilename(cur_title));
 323                         if (!buffer()->isClean()) {
 324                                 maximize_title += _(" (changed)");
 325                                 minimize_title += lyx::char_type('*');
 326                         }
 327                         if (buffer()->isReadonly())
 328                                 maximize_title += _(" (read only)");
 329                 }
 330         }
 331
 332         if (maximize_title != last_title) {
 333                 setWindowTitle(maximize_title, minimize_title);
 334                 last_title = maximize_title;
 335         }
 336 }
 337
 338
 339 void LyXView::dispatch(FuncRequest const & cmd)
 340 {
 341         getLyXFunc().dispatch(cmd);
 342 }
 343
 344
 345 Buffer const * const LyXView::updateInset(InsetBase const * inset) const
 346 {
 347         Buffer const * buffer_ptr = 0;
 348         if (inset) {
 349                 buffer_ptr = work_area_->bufferView().buffer();
 350                 // No FitCursor:
 351                 work_area_->bufferView().update(Update::Force);
 352         }
 353         return buffer_ptr;
 354 }