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