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