src/frontends/qt4/GuiView.C

   1 /**
   2  * \file GuiView.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  * \author Abdelrazak Younes
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #include <config.h>
  14
  15 #include "GuiView.h"
  16
  17 #include "GuiImplementation.h"
  18 #include "GuiWorkArea.h"
  19 #include "QLMenubar.h"
  20 #include "QLToolbar.h"
  21 #include "QCommandBuffer.h"
  22 #include "qt_helpers.h"
  23
  24 #include "frontends/Application.h"
  25 #include "frontends/Gui.h"
  26 #include "frontends/WorkArea.h"
  27
  28 #include "support/filetools.h"
  29 #include "support/convert.h"
  30 #include "support/lstrings.h"
  31
  32 #include "BufferView.h"
  33 #include "bufferlist.h"
  34 #include "debug.h"
  35 #include "funcrequest.h"
  36 #include "lyx_cb.h"
  37 #include "lyxrc.h"
  38 #include "lyx_main.h"
  39 #include "session.h"
  40 #include "lyxfunc.h"
  41 #include "MenuBackend.h"
  42 #include "buffer.h"
  43 #include "bufferlist.h"
  44
  45 #include <QAction>
  46 #include <QApplication>
  47 #include <QCloseEvent>
  48 #include <QPixmap>
  49 #include <QStatusBar>
  50 #include <QToolBar>
  51 #include <QTabBar>
  52 #include <QDesktopWidget>
  53 #include <QVBoxLayout>
  54
  55 #include <boost/bind.hpp>
  56
  57 using std::endl;
  58 using std::string;
  59 using std::vector;
  60
  61 using lyx::support::onlyFilename;
  62
  63 namespace lyx {
  64
  65 using support::subst;
  66 using support::libFileSearch;
  67
  68 namespace frontend {
  69
  70 namespace {
  71
  72 int const statusbar_timer_value = 3000;
  73
  74 } // namespace anon
  75
  76
  77 class WidgetWithTabBar : public QWidget
  78 {
  79 public:
  80         QTabBar* tabbar;
  81         WidgetWithTabBar(QWidget* w)
  82         {
  83                 tabbar = new QTabBar;
  84                 QVBoxLayout* l = new QVBoxLayout;
  85                 l->addWidget(tabbar);
  86                 l->addWidget(w);
  87                 l->setMargin(0);
  88                 setLayout(l);
  89         }
  90 };
  91
  92 struct GuiView::GuiViewPrivate
  93 {
  94         typedef std::map<int, FuncRequest> FuncMap;
  95         typedef std::pair<int, FuncRequest> FuncMapPair;
  96         typedef std::map<string, QString> NameMap;
  97         typedef std::pair<string, QString> NameMapPair;
  98
  99         FuncMap funcmap;
 100         NameMap namemap;
 101         WidgetWithTabBar* wt;
 102
 103         GuiViewPrivate()
 104         {}
 105 };
 106
 107 GuiView::GuiView(int id)
 108         : QMainWindow(), LyXView(id), commandbuffer_(0), d(*new GuiViewPrivate)
 109 {
 110         setAttribute(Qt::WA_DeleteOnClose, true);
 111         setAttribute(Qt::WA_QuitOnClose, true);
 112
 113 //      setToolButtonStyle(Qt::ToolButtonIconOnly);
 114 //      setIconSize(QSize(12,12));
 115
 116 //      bufferview_.reset(new BufferView(this, width, height));
 117
 118 #ifndef Q_WS_MACX
 119         //  assign an icon to main form. We do not do it under Qt/Mac,
 120         //  since the icon is provided in the application bundle.
 121         string const iconname = libFileSearch("images", "lyx", "xpm");
 122         if (!iconname.empty())
 123                 setWindowIcon(QPixmap(toqstr(iconname)));
 124 #endif
 125 }
 126
 127
 128 GuiView::~GuiView()
 129 {
 130         delete &d;
 131 }
 132
 133
 134 void GuiView::close()
 135 {
 136         QMainWindow::close();
 137 }
 138
 139
 140 void GuiView::init()
 141 {
 142         menubar_.reset(new QLMenubar(this, menubackend));
 143         QObject::connect(menuBar(), SIGNAL(triggered(QAction *)),
 144                 this, SLOT(updateMenu(QAction *)));
 145
 146         getToolbars().init();
 147
 148         statusBar()->setSizeGripEnabled(false);
 149
 150         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 151                 this, SLOT(update_view_state_qt()));
 152
 153         if (!work_area_->bufferView().buffer() && !theBufferList().empty())
 154                 setBuffer(theBufferList().first());
 155
 156         // make sure the buttons are disabled if needed
 157         updateToolbars();
 158         updateLayoutChoice();
 159         updateMenubar();
 160 }
 161
 162
 163 void GuiView::saveGeometry()
 164 {
 165         // FIXME:
 166         // change the ifdef to 'geometry = normalGeometry();' only
 167         // when Trolltech has fixed the broken normalGeometry on X11:
 168         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 169         // Then also the moveEvent, resizeEvent, and the
 170         // code for floatingGeometry_ can be removed;
 171         // adjust GuiView::setGeometry()
 172 #ifdef Q_OS_WIN32
 173         QRect geometry = normalGeometry();
 174 #else
 175         updateFloatingGeometry();
 176         QRect geometry = floatingGeometry_;
 177 #endif
 178
 179         // save windows size and position
 180         Session & session = LyX::ref().session();
 181         session.sessionInfo().save("WindowWidth", convert<string>(geometry.width()));
 182         session.sessionInfo().save("WindowHeight", convert<string>(geometry.height()));
 183         session.sessionInfo().save("WindowIsMaximized", (isMaximized() ? "yes" : "no"));
 184         if (lyxrc.geometry_xysaved) {
 185                 session.sessionInfo().save("WindowPosX", convert<string>(geometry.x()));
 186                 session.sessionInfo().save("WindowPosY", convert<string>(geometry.y()));
 187         }
 188 }
 189
 190 void GuiView::setGeometry(unsigned int width,
 191                                                                   unsigned int height,
 192                                                                   int posx, int posy,
 193                                                                   bool maximize)
 194 {
 195         // only true when the -geometry option was NOT used
 196         if (width != 0 && height != 0) {
 197                 if (posx != -1 && posy != -1) {
 198                         // if there are ever startup positioning problems
 199                         // on a virtual desktop then check the 6 lines below
 200                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 201                         QDesktopWidget& dw = *qApp->desktop();
 202                         QRect desk = dw.availableGeometry(dw.primaryScreen());
 203                         (posx >= desk.width() ? posx = 50 : true);
 204                         (posy >= desk.height()? posy = 50 : true);
 205 #ifdef Q_WS_WIN
 206                         // FIXME: use only setGeoemtry when Trolltech has
 207                         // fixed the qt4/X11 bug
 208                         QMainWindow::setGeometry(posx, posy,width, height);
 209 #else
 210                         resize(width, height);
 211                         move(posx, posy);
 212 #endif
 213                 } else {
 214                         resize(width, height);
 215                 }
 216
 217                 if (maximize)
 218                         setWindowState(Qt::WindowMaximized);
 219         }
 220
 221         show();
 222 }
 223
 224
 225 void GuiView::updateMenu(QAction * /*action*/)
 226 {
 227         menubar_->update();
 228 }
 229
 230
 231 void GuiView::setWindowTitle(docstring const & t, docstring const & it)
 232 {
 233         QMainWindow::setWindowTitle(toqstr(t));
 234         QMainWindow::setWindowIconText(toqstr(it));
 235 }
 236
 237
 238 void GuiView::addCommandBuffer(QToolBar * toolbar)
 239 {
 240         commandbuffer_ = new QCommandBuffer(this, *controlcommand_);
 241         focus_command_buffer.connect(boost::bind(&GuiView::focus_command_widget, this));
 242         toolbar->addWidget(commandbuffer_);
 243 }
 244
 245
 246 void GuiView::message(docstring const & str)
 247 {
 248         statusBar()->showMessage(toqstr(str));
 249         statusbar_timer_.stop();
 250         statusbar_timer_.start(statusbar_timer_value);
 251 }
 252
 253
 254 void GuiView::clearMessage()
 255 {
 256         update_view_state_qt();
 257 }
 258
 259
 260 void GuiView::focus_command_widget()
 261 {
 262         if (commandbuffer_)
 263                 commandbuffer_->focus_command();
 264 }
 265
 266
 267 void GuiView::update_view_state_qt()
 268 {
 269         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 270         statusbar_timer_.stop();
 271 }
 272
 273 void GuiView::initTab(QWidget* workarea)
 274 {
 275         d.wt = new WidgetWithTabBar(workarea);
 276         setCentralWidget(d.wt);
 277         QObject::connect(d.wt->tabbar, SIGNAL(currentChanged(int)),
 278                         this, SLOT(currentTabChanged(int)));
 279 }
 280
 281 void GuiView::updateTab()
 282 {
 283         QTabBar& tb = *d.wt->tabbar;
 284
 285         // update when all  is done
 286         tb.blockSignals(true);
 287
 288         typedef std::vector<string> Strings;
 289         Strings const names = theBufferList().getFileNames();
 290         size_t n_size = names.size();
 291
 292         Strings addtab;
 293         // show tabs only when there is more
 294         // than one file opened
 295         if (n_size > 1)
 296         {
 297                 for (size_t i = 0; i != n_size; i++)
 298                         if (d.namemap.find(names[i]) == d.namemap.end())
 299                                 addtab.push_back(names.at(i));
 300         }
 301
 302         for(size_t i = 0; i<addtab.size(); i++)
 303         {
 304                 QString tab_name = lyx::toqstr(onlyFilename(addtab.at(i)));
 305                 d.namemap.insert(GuiViewPrivate::NameMapPair(addtab.at(i), tab_name));
 306                 tb.addTab(tab_name);
 307         }
 308
 309         // check if all names showed by the tabs
 310         // are also in the current bufferlist
 311         Strings removetab;
 312         bool notall = true;
 313         if (n_size < 2)
 314                 notall = false;
 315         std::map<string, QString>::iterator tabit = d.namemap.begin();
 316         for (;tabit != d.namemap.end(); ++tabit)
 317         {
 318                 bool found = false;
 319                 for (size_t i = 0; i != n_size; i++)
 320                         if (tabit->first == names.at(i) && notall)
 321                                 found = true;
 322                 if (!found)
 323                         removetab.push_back(tabit->first);
 324         }
 325
 326
 327         // remove tabs
 328         for(size_t i = 0; i<removetab.size(); i++)
 329         {
 330                 if (d.namemap.find(removetab.at(i)) != d.namemap.end())
 331                 {
 332                         tabit = d.namemap.find(removetab.at(i));
 333                         for (int i = 0; i < tb.count(); i++)
 334                                 if (tb.tabText(i) == tabit->second)
 335                                 {
 336                                         tb.removeTab(i);
 337                                         break;
 338                                 }
 339                         d.namemap.erase(tabit);
 340                 }
 341         }
 342
 343         // rebuild func map
 344         if (removetab.size() > 0 || addtab.size() > 0)
 345         {
 346                 d.funcmap.clear();
 347                 tabit = d.namemap.begin();
 348                 for (;tabit != d.namemap.end(); ++tabit)
 349                 {
 350                         QTabBar& tb = *d.wt->tabbar;
 351                         for (int i = 0; i < tb.count(); i++)
 352                         {
 353                                 if (tb.tabText(i) == tabit->second)
 354                                 {
 355                                         FuncRequest func(LFUN_BUFFER_SWITCH, tabit->first);
 356                                         d.funcmap.insert(GuiViewPrivate::FuncMapPair(i, func));
 357                                         break;
 358                                 }
 359                         }
 360                 }
 361         }
 362
 363         // set current tab
 364         if (view()->buffer())
 365         {
 366                 string cur_title = view()->buffer()->fileName();
 367                 if (d.namemap.find(cur_title) != d.namemap.end())
 368                 {
 369                         QString tabname = d.namemap.find(cur_title)->second;
 370                         for (int i = 0; i < tb.count(); i++)
 371                                 if (tb.tabText(i) == tabname)
 372                                 {
 373                                         tb.setCurrentIndex(i);
 374                                         break;
 375                                 }
 376                 }
 377         }
 378
 379         tb.blockSignals(false);
 380         d.wt->update();
 381 }
 382
 383 void GuiView::currentTabChanged (int index)
 384 {
 385         std::map<int, FuncRequest>::const_iterator it = d.funcmap.find(index);
 386         if (it != d.funcmap.end())
 387                 activated(it->second);
 388 }
 389
 390
 391 void GuiView::updateStatusBar()
 392 {
 393         // let the user see the explicit message
 394         if (statusbar_timer_.isActive())
 395                 return;
 396
 397         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 398 }
 399
 400
 401 void GuiView::activated(FuncRequest const & func)
 402 {
 403         dispatch(func);
 404 }
 405
 406
 407 bool GuiView::hasFocus() const
 408 {
 409         return qApp->activeWindow() == this;
 410 }
 411
 412
 413 void  GuiView::updateFloatingGeometry()
 414 {
 415         if (!isMaximized())
 416                 floatingGeometry_ = QRect(x(), y(), width(), height());
 417 }
 418
 419
 420 void GuiView::resizeEvent(QResizeEvent *)
 421 {
 422         updateFloatingGeometry();
 423 }
 424
 425
 426 void GuiView::moveEvent(QMoveEvent *)
 427 {
 428         updateFloatingGeometry();
 429 }
 430
 431
 432 void GuiView::closeEvent(QCloseEvent * close_event)
 433 {
 434         GuiImplementation & gui
 435                 = static_cast<GuiImplementation &>(theApp->gui());
 436
 437         vector<int> const & view_ids = gui.viewIds();
 438
 439         if (view_ids.size() == 1 && !theBufferList().quitWriteAll()) {
 440                 close_event->ignore();
 441                 return;
 442         }
 443
 444         saveGeometry();
 445         gui.unregisterView(this);
 446 }
 447
 448
 449 void GuiView::show()
 450 {
 451         QMainWindow::setWindowTitle(qt_("LyX"));
 452         QMainWindow::show();
 453         updateFloatingGeometry();
 454 }
 455
 456
 457 void GuiView::busy(bool yes)
 458 {
 459         static_cast<GuiWorkArea *>(work_area_)->setUpdatesEnabled(!yes);
 460
 461         if (yes) {
 462                 work_area_->stopBlinkingCursor();
 463                 QApplication::setOverrideCursor(Qt::WaitCursor);
 464         }
 465         else {
 466                 work_area_->startBlinkingCursor();
 467                 QApplication::restoreOverrideCursor();
 468         }
 469 }
 470
 471
 472 Toolbars::ToolbarPtr GuiView::makeToolbar(ToolbarBackend::Toolbar const & tbb)
 473 {
 474         QLToolbar * Tb = new QLToolbar(tbb, *this);
 475         static QLToolbar * lastTb = 0;
 476
 477         if (tbb.flags & ToolbarBackend::TOP) {
 478                         addToolBar(Qt::TopToolBarArea, Tb);
 479                         addToolBarBreak(Qt::TopToolBarArea);
 480         }
 481         if (tbb.flags & ToolbarBackend::BOTTOM) {
 482                 addToolBar(Qt::BottomToolBarArea, Tb);
 483                 /*
 484                 // Qt bug:
 485                 // http://www.trolltech.com/developer/task-tracker/index_html?id=137015&method=entry
 486                 // Doesn't work because the toolbar will evtl. be hidden.
 487                 if (lastTb)
 488                         insertToolBarBreak(lastTb);
 489                 lastTb = Tb;
 490                 */
 491         }
 492         if (tbb.flags & ToolbarBackend::LEFT) {
 493                 addToolBar(Qt::LeftToolBarArea, Tb);
 494         }
 495         if (tbb.flags & ToolbarBackend::RIGHT) {
 496                 addToolBar(Qt::RightToolBarArea, Tb);
 497         }
 498
 499         return Toolbars::ToolbarPtr(Tb);
 500 }
 501
 502 } // namespace frontend
 503 } // namespace lyx
 504
 505 #include "GuiView_moc.cpp"