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  * \author Peter Kümmel
  10  *
  11  * Full author contact details are available in file CREDITS.
  12  */
  13
  14 #include <config.h>
  15
  16 #include "GuiView.h"
  17
  18 #include "GuiImplementation.h"
  19 #include "GuiWorkArea.h"
  20 #include "QLMenubar.h"
  21 #include "QLToolbar.h"
  22 #include "QCommandBuffer.h"
  23 #include "qt_helpers.h"
  24
  25 #include "frontends/Application.h"
  26 #include "frontends/Gui.h"
  27 #include "frontends/WorkArea.h"
  28
  29 #include "support/filetools.h"
  30 #include "support/convert.h"
  31 #include "support/lstrings.h"
  32
  33 #include "BufferView.h"
  34 #include "bufferlist.h"
  35 #include "debug.h"
  36 #include "funcrequest.h"
  37 #include "lyx_cb.h"
  38 #include "lyxrc.h"
  39 #include "lyx_main.h"
  40 #include "session.h"
  41 #include "lyxfunc.h"
  42 #include "MenuBackend.h"
  43 #include "buffer.h"
  44 #include "bufferlist.h"
  45
  46 #include <QAction>
  47 #include <QApplication>
  48 #include <QCloseEvent>
  49 #include <QPixmap>
  50 #include <QStatusBar>
  51 #include <QToolBar>
  52 #include <QTabBar>
  53 #include <QDesktopWidget>
  54 #include <QVBoxLayout>
  55
  56 #include <boost/bind.hpp>
  57
  58 using std::endl;
  59 using std::string;
  60 using std::vector;
  61
  62 namespace lyx {
  63
  64 using support::FileName;
  65 using support::onlyFilename;
  66 using support::subst;
  67 using support::libFileSearch;
  68
  69 namespace frontend {
  70
  71 namespace {
  72
  73 int const statusbar_timer_value = 3000;
  74
  75 } // namespace anon
  76
  77
  78 class WidgetWithTabBar : public QWidget
  79 {
  80 public:
  81         QTabBar* tabbar;
  82         WidgetWithTabBar(QWidget* w)
  83         {
  84                 tabbar = new QTabBar;
  85                 QVBoxLayout* l = new QVBoxLayout;
  86                 l->addWidget(tabbar);
  87                 l->addWidget(w);
  88                 l->setMargin(0);
  89                 setLayout(l);
  90         }
  91 };
  92
  93
  94 struct GuiView::GuiViewPrivate
  95 {
  96         typedef std::map<int, FuncRequest> FuncMap;
  97         typedef std::pair<int, FuncRequest> FuncMapPair;
  98         typedef std::map<string, QString> NameMap;
  99         typedef std::pair<string, QString> NameMapPair;
 100
 101         FuncMap funcmap;
 102         NameMap namemap;
 103         WidgetWithTabBar* wt;
 104
 105         int posx_offset;
 106         int posy_offset;
 107
 108         GuiViewPrivate() : wt(0), posx_offset(0), posy_offset(0)
 109         {}
 110
 111         unsigned int smallIconSize;
 112         unsigned int normalIconSize;
 113         unsigned int bigIconSize;
 114         // static needed by "New Window"
 115         static unsigned int lastIconSize;
 116
 117         QMenu* toolBarPopup(GuiView *parent)
 118         {
 119                 // FIXME: translation
 120                 QMenu* menu = new QMenu(parent);
 121                 QActionGroup *iconSizeGroup = new QActionGroup(parent);
 122
 123                 QAction *smallIcons = new QAction(iconSizeGroup);
 124                 smallIcons->setText("Small sized icons");
 125                 smallIcons->setCheckable(true);
 126                 QObject::connect(smallIcons, SIGNAL(triggered()), parent, SLOT(smallSizedIcons()));
 127                 menu->addAction(smallIcons);
 128
 129                 QAction *normalIcons = new QAction(iconSizeGroup);
 130                 normalIcons->setText("Normal sized icons");
 131                 normalIcons->setCheckable(true);
 132                 QObject::connect(normalIcons, SIGNAL(triggered()), parent, SLOT(normalSizedIcons()));
 133                 menu->addAction(normalIcons);
 134
 135
 136                 QAction *bigIcons = new QAction(iconSizeGroup);
 137                 bigIcons->setText("Big sized icons");
 138                 bigIcons->setCheckable(true);
 139                 QObject::connect(bigIcons, SIGNAL(triggered()), parent, SLOT(bigSizedIcons()));
 140                 menu->addAction(bigIcons);
 141
 142                 unsigned int cur = parent->iconSize().width();
 143                 if ( cur == parent->d.smallIconSize)
 144                         smallIcons->setChecked(true);
 145                 else if (cur == parent->d.normalIconSize)
 146                         normalIcons->setChecked(true);
 147                 else if (cur == parent->d.bigIconSize)
 148                         bigIcons->setChecked(true);
 149
 150                 return menu;
 151         }
 152 };
 153
 154
 155 unsigned int GuiView::GuiViewPrivate::lastIconSize = 0;
 156
 157
 158 GuiView::GuiView(int id)
 159         : QMainWindow(), LyXView(id), commandbuffer_(0), quitting_by_menu_(false),
 160           d(*new GuiViewPrivate)
 161 {
 162         // Qt bug? signal lastWindowClosed does not work
 163         setAttribute(Qt::WA_QuitOnClose, false);
 164         setAttribute(Qt::WA_DeleteOnClose, true);
 165
 166         // hardcode here the platform specific icon size
 167         d.smallIconSize = 14;   // scaling problems
 168         d.normalIconSize = 20;  // ok, default
 169         d.bigIconSize = 26;             // better for some math icons
 170
 171 #ifndef Q_WS_MACX
 172         //  assign an icon to main form. We do not do it under Qt/Mac,
 173         //  since the icon is provided in the application bundle.
 174         FileName const iconname = libFileSearch("images", "lyx", "xpm");
 175         if (!iconname.empty())
 176                 setWindowIcon(QPixmap(toqstr(iconname.absFilename())));
 177 #endif
 178 }
 179
 180
 181 GuiView::~GuiView()
 182 {
 183         menubar_.reset();
 184         delete &d;
 185 }
 186
 187
 188 void GuiView::close()
 189 {
 190         quitting_by_menu_ = true;
 191         QMainWindow::close();
 192         quitting_by_menu_ = false;
 193 }
 194
 195
 196 QMenu* GuiView::createPopupMenu()
 197 {
 198         return d.toolBarPopup(this);
 199 }
 200
 201
 202 void GuiView::init()
 203 {
 204         menubar_.reset(new QLMenubar(this, menubackend));
 205         QObject::connect(menuBar(), SIGNAL(triggered(QAction *)),
 206                 this, SLOT(updateMenu(QAction *)));
 207
 208         getToolbars().init();
 209
 210         statusBar()->setSizeGripEnabled(false);
 211
 212         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 213                 this, SLOT(update_view_state_qt()));
 214
 215         if (!work_area_->bufferView().buffer() && !theBufferList().empty())
 216                 setBuffer(theBufferList().first());
 217
 218         // make sure the buttons are disabled if needed
 219         updateToolbars();
 220         updateLayoutChoice();
 221         updateMenubar();
 222 }
 223
 224
 225 void GuiView::closeEvent(QCloseEvent * close_event)
 226 {
 227         // we may have been called through the close window button
 228         // which bypasses the LFUN machinery.
 229         if (!quitting_by_menu_) {
 230                 if (!theBufferList().quitWriteAll()) {
 231                         close_event->ignore();
 232                         return;
 233                 }
 234         }
 235         if (view()->buffer()) {
 236                 // save cursor position for opened files to .lyx/session
 237                 LyX::ref().session().lastFilePos().save(
 238                         FileName(buffer()->fileName()),
 239                         boost::tie(view()->cursor().pit(),
 240                         view()->cursor().pos()));
 241         }
 242         theApp()->gui().unregisterView(id());
 243         if (theApp()->gui().viewIds().empty())
 244         {
 245                 // this is the place where we leave the frontend.
 246                 // it is the only point at which we start quitting.
 247                 saveGeometry();
 248                 close_event->accept();
 249                 // quit the event loop
 250                 qApp->quit();
 251         }
 252         close_event->accept();
 253 }
 254
 255
 256 void GuiView::saveGeometry()
 257 {
 258         static bool done = false;
 259         if (done)
 260                 return;
 261         else
 262                 done = true;
 263
 264         // FIXME:
 265         // change the ifdef to 'geometry = normalGeometry();' only
 266         // when Trolltech has fixed the broken normalGeometry on X11:
 267         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 268         // Then also the moveEvent, resizeEvent, and the
 269         // code for floatingGeometry_ can be removed;
 270         // adjust GuiView::setGeometry()
 271 #ifdef Q_WS_WIN
 272         QRect geometry = normalGeometry();
 273 #else
 274         updateFloatingGeometry();
 275         QRect geometry = floatingGeometry_;
 276 #endif
 277
 278         // save windows size and position
 279         Session & session = LyX::ref().session();
 280         session.sessionInfo().save("WindowWidth", convert<string>(geometry.width()));
 281         session.sessionInfo().save("WindowHeight", convert<string>(geometry.height()));
 282         session.sessionInfo().save("WindowIsMaximized", (isMaximized() ? "yes" : "no"));
 283         session.sessionInfo().save("IconSizeXY", convert<string>(iconSize().width()));
 284         if (lyxrc.geometry_xysaved) {
 285                 session.sessionInfo().save("WindowPosX", convert<string>(geometry.x() + d.posx_offset));
 286                 session.sessionInfo().save("WindowPosY", convert<string>(geometry.y() + d.posy_offset));
 287         }
 288         getToolbars().saveToolbarInfo();
 289 }
 290
 291
 292 void GuiView::setGeometry(unsigned int width,
 293                                                                   unsigned int height,
 294                                                                   int posx, int posy,
 295                                                                   bool maximize,
 296                                                                   unsigned int iconSizeXY,
 297                                                                   const std::string & geometryArg)
 298 {
 299         // use last value (not at startup)
 300         if (d.lastIconSize != 0)
 301                 setIconSize(d.lastIconSize);
 302         else if (iconSizeXY != 0)
 303                 setIconSize(iconSizeXY);
 304         else
 305                 setIconSize(d.normalIconSize);
 306
 307         // only true when the -geometry option was NOT used
 308         if (width != 0 && height != 0) {
 309                 if (posx != -1 && posy != -1) {
 310                         // if there are ever startup positioning problems
 311                         // on a virtual desktop then check the 6 lines below
 312                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 313                         QDesktopWidget& dw = *qApp->desktop();
 314                         QRect desk = dw.availableGeometry(dw.primaryScreen());
 315                         (posx >= desk.width() ? posx = 50 : true);
 316                         (posy >= desk.height()? posy = 50 : true);
 317 #ifdef Q_WS_WIN
 318                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 319                         QWidget::setGeometry(posx, posy, width, height);
 320 #else
 321                         resize(width, height);
 322                         move(posx, posy);
 323 #endif
 324                 } else {
 325                         resize(width, height);
 326                 }
 327
 328                 if (maximize)
 329                         setWindowState(Qt::WindowMaximized);
 330         }
 331         else
 332         {
 333                 // FIXME: move this code into parse_geometry() (lyx_main.C)
 334 #ifdef Q_WS_WIN
 335                 int x, y;
 336                 int w, h;
 337                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 338                 re.indexIn( toqstr(geometryArg.c_str()));
 339                 w = re.cap( 1 ).toInt();
 340                 h = re.cap( 2 ).toInt();
 341                 x = re.cap( 3 ).toInt();
 342                 y = re.cap( 4 ).toInt();
 343                 QWidget::setGeometry( x, y, w, h );
 344 #endif
 345         }
 346
 347         show();
 348
 349         // For an unknown reason, the Window title update is not effective for
 350         // the second windows up until it is shown on screen (Qt bug?).
 351         updateWindowTitle();
 352
 353         // after show geometry() has changed (Qt bug?)
 354         // we compensate the drift when storing the position
 355         d.posx_offset = 0;
 356         d.posy_offset = 0;
 357         if (width != 0 && height != 0)
 358                 if (posx != -1 && posy != -1) {
 359 #ifdef Q_WS_WIN
 360                         d.posx_offset = posx - normalGeometry().x();
 361                         d.posy_offset = posy - normalGeometry().y();
 362 #else
 363                         if (!maximize) {
 364                                 d.posx_offset = posx - geometry().x();
 365                                 d.posy_offset = posy - geometry().y();
 366                         }
 367 #endif
 368                 }
 369 }
 370
 371
 372 void GuiView::updateMenu(QAction * /*action*/)
 373 {
 374         menubar_->update();
 375 }
 376
 377
 378 void GuiView::setWindowTitle(docstring const & t, docstring const & it)
 379 {
 380         QString title = windowTitle();
 381         QString new_title = toqstr(t);
 382         if (title != new_title) {
 383                 QMainWindow::setWindowTitle(new_title);
 384                 QMainWindow::setWindowIconText(toqstr(it));
 385         }
 386 }
 387
 388
 389 void GuiView::addCommandBuffer(QToolBar * toolbar)
 390 {
 391         commandbuffer_ = new QCommandBuffer(this, *controlcommand_);
 392         focus_command_buffer.connect(boost::bind(&GuiView::focus_command_widget, this));
 393         toolbar->addWidget(commandbuffer_);
 394 }
 395
 396
 397 void GuiView::message(docstring const & str)
 398 {
 399         statusBar()->showMessage(toqstr(str));
 400         statusbar_timer_.stop();
 401         statusbar_timer_.start(statusbar_timer_value);
 402 }
 403
 404
 405 void GuiView::clearMessage()
 406 {
 407         update_view_state_qt();
 408 }
 409
 410
 411 void GuiView::setIconSize(unsigned int size)
 412 {
 413         d.lastIconSize = size;
 414         QMainWindow::setIconSize(QSize(size, size));
 415 }
 416
 417
 418 void GuiView::smallSizedIcons()
 419 {
 420         setIconSize(d.smallIconSize);
 421 }
 422
 423
 424 void GuiView::normalSizedIcons()
 425 {
 426         setIconSize(d.normalIconSize);
 427 }
 428
 429
 430 void GuiView::bigSizedIcons()
 431 {
 432         setIconSize(d.bigIconSize);
 433 }
 434
 435
 436 void GuiView::focus_command_widget()
 437 {
 438         if (commandbuffer_)
 439                 commandbuffer_->focus_command();
 440 }
 441
 442
 443 void GuiView::update_view_state_qt()
 444 {
 445         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 446         statusbar_timer_.stop();
 447 }
 448
 449
 450 void GuiView::initTab(QWidget* workarea)
 451 {
 452         d.wt = new WidgetWithTabBar(workarea);
 453         setCentralWidget(d.wt);
 454         QObject::connect(d.wt->tabbar, SIGNAL(currentChanged(int)),
 455                         this, SLOT(currentTabChanged(int)));
 456 }
 457
 458
 459 void GuiView::updateTab()
 460 {
 461         QTabBar& tb = *d.wt->tabbar;
 462
 463         // update when all  is done
 464         tb.blockSignals(true);
 465
 466         typedef std::vector<string> Strings;
 467         Strings const names = theBufferList().getFileNames();
 468         size_t n_size = names.size();
 469
 470         Strings addtab;
 471         // show tabs only when there is more
 472         // than one file opened
 473         if (n_size > 1)
 474         {
 475                 for (size_t i = 0; i != n_size; i++)
 476                         if (d.namemap.find(names[i]) == d.namemap.end())
 477                                 addtab.push_back(names.at(i));
 478         }
 479
 480         for(size_t i = 0; i<addtab.size(); i++)
 481         {
 482                 QString tab_name = lyx::toqstr(onlyFilename(addtab.at(i)));
 483                 d.namemap.insert(GuiViewPrivate::NameMapPair(addtab.at(i), tab_name));
 484                 tb.addTab(tab_name);
 485         }
 486
 487         // check if all names showed by the tabs
 488         // are also in the current bufferlist
 489         Strings removetab;
 490         bool notall = true;
 491         if (n_size < 2)
 492                 notall = false;
 493         std::map<string, QString>::iterator tabit = d.namemap.begin();
 494         for (;tabit != d.namemap.end(); ++tabit)
 495         {
 496                 bool found = false;
 497                 for (size_t i = 0; i != n_size; i++)
 498                         if (tabit->first == names.at(i) && notall)
 499                                 found = true;
 500                 if (!found)
 501                         removetab.push_back(tabit->first);
 502         }
 503
 504
 505         // remove tabs
 506         for(size_t i = 0; i<removetab.size(); i++)
 507         {
 508                 if (d.namemap.find(removetab.at(i)) != d.namemap.end())
 509                 {
 510                         tabit = d.namemap.find(removetab.at(i));
 511                         for (int i = 0; i < tb.count(); i++)
 512                                 if (tb.tabText(i) == tabit->second)
 513                                 {
 514                                         tb.removeTab(i);
 515                                         break;
 516                                 }
 517                         d.namemap.erase(tabit);
 518                 }
 519         }
 520
 521         // rebuild func map
 522         if (removetab.size() > 0 || addtab.size() > 0)
 523         {
 524                 d.funcmap.clear();
 525                 tabit = d.namemap.begin();
 526                 for (;tabit != d.namemap.end(); ++tabit)
 527                 {
 528                         QTabBar& tb = *d.wt->tabbar;
 529                         for (int i = 0; i < tb.count(); i++)
 530                         {
 531                                 if (tb.tabText(i) == tabit->second)
 532                                 {
 533                                         FuncRequest func(LFUN_BUFFER_SWITCH, tabit->first);
 534                                         d.funcmap.insert(GuiViewPrivate::FuncMapPair(i, func));
 535                                         break;
 536                                 }
 537                         }
 538                 }
 539         }
 540
 541         // set current tab
 542         if (view()->buffer())
 543         {
 544                 string cur_title = view()->buffer()->fileName();
 545                 if (d.namemap.find(cur_title) != d.namemap.end())
 546                 {
 547                         QString tabname = d.namemap.find(cur_title)->second;
 548                         for (int i = 0; i < tb.count(); i++)
 549                                 if (tb.tabText(i) == tabname)
 550                                 {
 551                                         tb.setCurrentIndex(i);
 552                                         break;
 553                                 }
 554                 }
 555         }
 556
 557         tb.blockSignals(false);
 558         d.wt->update();
 559 }
 560
 561
 562 void GuiView::currentTabChanged (int index)
 563 {
 564         std::map<int, FuncRequest>::const_iterator it = d.funcmap.find(index);
 565         if (it != d.funcmap.end())
 566                 activated(it->second);
 567 }
 568
 569
 570 void GuiView::updateStatusBar()
 571 {
 572         // let the user see the explicit message
 573         if (statusbar_timer_.isActive())
 574                 return;
 575
 576         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 577 }
 578
 579
 580 void GuiView::activated(FuncRequest const & func)
 581 {
 582         dispatch(func);
 583 }
 584
 585
 586 bool GuiView::hasFocus() const
 587 {
 588         return qApp->activeWindow() == this;
 589 }
 590
 591
 592 void  GuiView::updateFloatingGeometry()
 593 {
 594         if (!isMaximized())
 595                 floatingGeometry_ = QRect(x(), y(), width(), height());
 596 }
 597
 598
 599 void GuiView::resizeEvent(QResizeEvent *)
 600 {
 601         updateFloatingGeometry();
 602 }
 603
 604
 605 void GuiView::moveEvent(QMoveEvent *)
 606 {
 607         updateFloatingGeometry();
 608 }
 609
 610
 611 void GuiView::show()
 612 {
 613         QMainWindow::setWindowTitle(qt_("LyX"));
 614         QMainWindow::show();
 615         updateFloatingGeometry();
 616 }
 617
 618
 619 void GuiView::busy(bool yes)
 620 {
 621         static_cast<GuiWorkArea *>(work_area_)->setUpdatesEnabled(!yes);
 622
 623         if (yes) {
 624                 work_area_->stopBlinkingCursor();
 625                 QApplication::setOverrideCursor(Qt::WaitCursor);
 626         }
 627         else {
 628                 work_area_->startBlinkingCursor();
 629                 QApplication::restoreOverrideCursor();
 630         }
 631 }
 632
 633
 634 Toolbars::ToolbarPtr GuiView::makeToolbar(ToolbarBackend::Toolbar const & tbb)
 635 {
 636         QLToolbar * Tb = new QLToolbar(tbb, *this);
 637         //static QLToolbar * lastTb = 0;
 638
 639         if (tbb.flags & ToolbarBackend::TOP) {
 640                         addToolBar(Qt::TopToolBarArea, Tb);
 641                         addToolBarBreak(Qt::TopToolBarArea);
 642         }
 643         if (tbb.flags & ToolbarBackend::BOTTOM) {
 644                 addToolBar(Qt::BottomToolBarArea, Tb);
 645                 /*
 646                 // Qt bug:
 647                 // http://www.trolltech.com/developer/task-tracker/index_html?id=137015&method=entry
 648                 // Doesn't work because the toolbar will evtl. be hidden.
 649                 if (lastTb)
 650                         insertToolBarBreak(lastTb);
 651                 lastTb = Tb;
 652                 */
 653         }
 654         if (tbb.flags & ToolbarBackend::LEFT) {
 655                 addToolBar(Qt::LeftToolBarArea, Tb);
 656         }
 657         if (tbb.flags & ToolbarBackend::RIGHT) {
 658                 addToolBar(Qt::RightToolBarArea, Tb);
 659         }
 660
 661         return Toolbars::ToolbarPtr(Tb);
 662 }
 663
 664 } // namespace frontend
 665 } // namespace lyx
 666
 667 #include "GuiView_moc.cpp"