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         // Qt bug? signal lastWindowClosed does not work
 159         setAttribute(Qt::WA_QuitOnClose, false);
 160         // FIXME: enable to avoid memory leaks but it prduces a crash
 161         //        after a new window has been close (click into the menu)
 162         //setAttribute(Qt::WA_DeleteOnClose, false);
 163
 164         // hardcode here the platform specific icon size
 165         d.smallIconSize = 14;   // scaling problems
 166         d.normalIconSize = 20;  // ok, default
 167         d.bigIconSize = 26;             // better for some math icons
 168
 169         //bufferview_.reset(new BufferView(this, width, height));
 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         delete &d;
 184 }
 185
 186
 187 void GuiView::close()
 188 {
 189         QMainWindow::close();
 190 }
 191
 192 QMenu* GuiView::createPopupMenu()
 193 {
 194         return d.toolBarPopup(this);
 195 }
 196
 197 void GuiView::init()
 198 {
 199         menubar_.reset(new QLMenubar(this, menubackend));
 200         QObject::connect(menuBar(), SIGNAL(triggered(QAction *)),
 201                 this, SLOT(updateMenu(QAction *)));
 202
 203         getToolbars().init();
 204
 205         statusBar()->setSizeGripEnabled(false);
 206
 207         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 208                 this, SLOT(update_view_state_qt()));
 209
 210         if (!work_area_->bufferView().buffer() && !theBufferList().empty())
 211                 setBuffer(theBufferList().first());
 212
 213         // make sure the buttons are disabled if needed
 214         updateToolbars();
 215         updateLayoutChoice();
 216         updateMenubar();
 217 }
 218
 219 void GuiView::closeEvent(QCloseEvent * close_event)
 220 {
 221         theApp()->gui().unregisterView(id());
 222         if (theApp()->gui().viewIds().empty())
 223         {
 224                 // this is the place were we leave the frontend
 225                 // and is the only point were we begin to quit
 226                 saveGeometry();
 227                 theBufferList().quitWriteAll();
 228                 close_event->accept();
 229                 // quit the event loop
 230                 qApp->quit();
 231         }
 232         close_event->accept();
 233 }
 234
 235 void GuiView::saveGeometry()
 236 {
 237         static bool done = false;
 238         if (done)
 239                 return;
 240         else
 241                 done = true;
 242
 243         // FIXME:
 244         // change the ifdef to 'geometry = normalGeometry();' only
 245         // when Trolltech has fixed the broken normalGeometry on X11:
 246         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 247         // Then also the moveEvent, resizeEvent, and the
 248         // code for floatingGeometry_ can be removed;
 249         // adjust GuiView::setGeometry()
 250 #ifdef Q_WS_WIN
 251         QRect geometry = normalGeometry();
 252 #else
 253         updateFloatingGeometry();
 254         QRect geometry = floatingGeometry_;
 255 #endif
 256
 257         // save windows size and position
 258         Session & session = LyX::ref().session();
 259         session.sessionInfo().save("WindowWidth", convert<string>(geometry.width()));
 260         session.sessionInfo().save("WindowHeight", convert<string>(geometry.height()));
 261         session.sessionInfo().save("WindowIsMaximized", (isMaximized() ? "yes" : "no"));
 262         session.sessionInfo().save("IconSizeXY", convert<string>(iconSize().width()));
 263         if (lyxrc.geometry_xysaved) {
 264                 session.sessionInfo().save("WindowPosX", convert<string>(geometry.x() + d.posx_offset));
 265                 session.sessionInfo().save("WindowPosY", convert<string>(geometry.y() + d.posy_offset));
 266         }
 267         getToolbars().saveToolbarInfo();
 268 }
 269
 270 void GuiView::setGeometry(unsigned int width,
 271                                                                   unsigned int height,
 272                                                                   int posx, int posy,
 273                                                                   bool maximize,
 274                                                                   unsigned int iconSizeXY,
 275                                                                   const std::string & geometryArg)
 276 {
 277         // use last value (not at startup)
 278         if (d.lastIconSize != 0)
 279                 setIconSize(d.lastIconSize);
 280         else if (iconSizeXY != 0)
 281                 setIconSize(iconSizeXY);
 282         else
 283                 setIconSize(d.normalIconSize);
 284
 285         // only true when the -geometry option was NOT used
 286         if (width != 0 && height != 0) {
 287                 if (posx != -1 && posy != -1) {
 288                         // if there are ever startup positioning problems
 289                         // on a virtual desktop then check the 6 lines below
 290                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 291                         QDesktopWidget& dw = *qApp->desktop();
 292                         QRect desk = dw.availableGeometry(dw.primaryScreen());
 293                         (posx >= desk.width() ? posx = 50 : true);
 294                         (posy >= desk.height()? posy = 50 : true);
 295 #ifdef Q_WS_WIN
 296                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 297                         QWidget::setGeometry(posx, posy, width, height);
 298 #else
 299                         resize(width, height);
 300                         move(posx, posy);
 301 #endif
 302                 } else {
 303                         resize(width, height);
 304                 }
 305
 306                 if (maximize)
 307                         setWindowState(Qt::WindowMaximized);
 308         }
 309         else
 310         {
 311                 // FIXME: move this code into parse_geometry() (lyx_main.C)
 312 #ifdef Q_WS_WIN
 313                 int x, y;
 314                 int w, h;
 315                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 316                 re.indexIn( toqstr(geometryArg.c_str()));
 317                 w = re.cap( 1 ).toInt();
 318                 h = re.cap( 2 ).toInt();
 319                 x = re.cap( 3 ).toInt();
 320                 y = re.cap( 4 ).toInt();
 321                 QWidget::setGeometry( x, y, w, h );
 322 #endif
 323         }
 324
 325         show();
 326
 327         // For an unknown reason, the Window title update is not effective for
 328         // the second windows up until it is shown on screen (Qt bug?).
 329         updateWindowTitle();
 330
 331         // after show geometry() has changed (Qt bug?)
 332         // we compensate the drift when storing the position
 333         d.posx_offset = 0;
 334         d.posy_offset = 0;
 335         if (width != 0 && height != 0)
 336                 if (posx != -1 && posy != -1) {
 337 #ifdef Q_WS_WIN
 338                         d.posx_offset = posx - normalGeometry().x();
 339                         d.posy_offset = posy - normalGeometry().y();
 340 #else
 341                         if (!maximize) {
 342                                 d.posx_offset = posx - geometry().x();
 343                                 d.posy_offset = posy - geometry().y();
 344                         }
 345 #endif
 346                 }
 347 }
 348
 349
 350 void GuiView::updateMenu(QAction * /*action*/)
 351 {
 352         menubar_->update();
 353 }
 354
 355
 356 void GuiView::setWindowTitle(docstring const & t, docstring const & it)
 357 {
 358         QString title = windowTitle();
 359         QString new_title = toqstr(t);
 360         if (title != new_title) {
 361                 QMainWindow::setWindowTitle(new_title);
 362                 QMainWindow::setWindowIconText(toqstr(it));
 363         }
 364 }
 365
 366
 367 void GuiView::addCommandBuffer(QToolBar * toolbar)
 368 {
 369         commandbuffer_ = new QCommandBuffer(this, *controlcommand_);
 370         focus_command_buffer.connect(boost::bind(&GuiView::focus_command_widget, this));
 371         toolbar->addWidget(commandbuffer_);
 372 }
 373
 374
 375 void GuiView::message(docstring const & str)
 376 {
 377         statusBar()->showMessage(toqstr(str));
 378         statusbar_timer_.stop();
 379         statusbar_timer_.start(statusbar_timer_value);
 380 }
 381
 382
 383 void GuiView::clearMessage()
 384 {
 385         update_view_state_qt();
 386 }
 387
 388 void GuiView::setIconSize(unsigned int size)
 389 {
 390         d.lastIconSize = size;
 391         QMainWindow::setIconSize(QSize(size, size));
 392 }
 393
 394 void GuiView::smallSizedIcons()
 395 {
 396         setIconSize(d.smallIconSize);
 397 }
 398
 399 void GuiView::normalSizedIcons()
 400 {
 401         setIconSize(d.normalIconSize);
 402 }
 403
 404 void GuiView::bigSizedIcons()
 405 {
 406         setIconSize(d.bigIconSize);
 407 }
 408
 409
 410 void GuiView::focus_command_widget()
 411 {
 412         if (commandbuffer_)
 413                 commandbuffer_->focus_command();
 414 }
 415
 416
 417 void GuiView::update_view_state_qt()
 418 {
 419         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 420         statusbar_timer_.stop();
 421 }
 422
 423 void GuiView::initTab(QWidget* workarea)
 424 {
 425         d.wt = new WidgetWithTabBar(workarea);
 426         setCentralWidget(d.wt);
 427         QObject::connect(d.wt->tabbar, SIGNAL(currentChanged(int)),
 428                         this, SLOT(currentTabChanged(int)));
 429 }
 430
 431 void GuiView::updateTab()
 432 {
 433         QTabBar& tb = *d.wt->tabbar;
 434
 435         // update when all  is done
 436         tb.blockSignals(true);
 437
 438         typedef std::vector<string> Strings;
 439         Strings const names = theBufferList().getFileNames();
 440         size_t n_size = names.size();
 441
 442         Strings addtab;
 443         // show tabs only when there is more
 444         // than one file opened
 445         if (n_size > 1)
 446         {
 447                 for (size_t i = 0; i != n_size; i++)
 448                         if (d.namemap.find(names[i]) == d.namemap.end())
 449                                 addtab.push_back(names.at(i));
 450         }
 451
 452         for(size_t i = 0; i<addtab.size(); i++)
 453         {
 454                 QString tab_name = lyx::toqstr(onlyFilename(addtab.at(i)));
 455                 d.namemap.insert(GuiViewPrivate::NameMapPair(addtab.at(i), tab_name));
 456                 tb.addTab(tab_name);
 457         }
 458
 459         // check if all names showed by the tabs
 460         // are also in the current bufferlist
 461         Strings removetab;
 462         bool notall = true;
 463         if (n_size < 2)
 464                 notall = false;
 465         std::map<string, QString>::iterator tabit = d.namemap.begin();
 466         for (;tabit != d.namemap.end(); ++tabit)
 467         {
 468                 bool found = false;
 469                 for (size_t i = 0; i != n_size; i++)
 470                         if (tabit->first == names.at(i) && notall)
 471                                 found = true;
 472                 if (!found)
 473                         removetab.push_back(tabit->first);
 474         }
 475
 476
 477         // remove tabs
 478         for(size_t i = 0; i<removetab.size(); i++)
 479         {
 480                 if (d.namemap.find(removetab.at(i)) != d.namemap.end())
 481                 {
 482                         tabit = d.namemap.find(removetab.at(i));
 483                         for (int i = 0; i < tb.count(); i++)
 484                                 if (tb.tabText(i) == tabit->second)
 485                                 {
 486                                         tb.removeTab(i);
 487                                         break;
 488                                 }
 489                         d.namemap.erase(tabit);
 490                 }
 491         }
 492
 493         // rebuild func map
 494         if (removetab.size() > 0 || addtab.size() > 0)
 495         {
 496                 d.funcmap.clear();
 497                 tabit = d.namemap.begin();
 498                 for (;tabit != d.namemap.end(); ++tabit)
 499                 {
 500                         QTabBar& tb = *d.wt->tabbar;
 501                         for (int i = 0; i < tb.count(); i++)
 502                         {
 503                                 if (tb.tabText(i) == tabit->second)
 504                                 {
 505                                         FuncRequest func(LFUN_BUFFER_SWITCH, tabit->first);
 506                                         d.funcmap.insert(GuiViewPrivate::FuncMapPair(i, func));
 507                                         break;
 508                                 }
 509                         }
 510                 }
 511         }
 512
 513         // set current tab
 514         if (view()->buffer())
 515         {
 516                 string cur_title = view()->buffer()->fileName();
 517                 if (d.namemap.find(cur_title) != d.namemap.end())
 518                 {
 519                         QString tabname = d.namemap.find(cur_title)->second;
 520                         for (int i = 0; i < tb.count(); i++)
 521                                 if (tb.tabText(i) == tabname)
 522                                 {
 523                                         tb.setCurrentIndex(i);
 524                                         break;
 525                                 }
 526                 }
 527         }
 528
 529         tb.blockSignals(false);
 530         d.wt->update();
 531 }
 532
 533 void GuiView::currentTabChanged (int index)
 534 {
 535         std::map<int, FuncRequest>::const_iterator it = d.funcmap.find(index);
 536         if (it != d.funcmap.end())
 537                 activated(it->second);
 538 }
 539
 540
 541 void GuiView::updateStatusBar()
 542 {
 543         // let the user see the explicit message
 544         if (statusbar_timer_.isActive())
 545                 return;
 546
 547         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 548 }
 549
 550
 551 void GuiView::activated(FuncRequest const & func)
 552 {
 553         dispatch(func);
 554 }
 555
 556
 557 bool GuiView::hasFocus() const
 558 {
 559         return qApp->activeWindow() == this;
 560 }
 561
 562
 563 void  GuiView::updateFloatingGeometry()
 564 {
 565         if (!isMaximized())
 566                 floatingGeometry_ = QRect(x(), y(), width(), height());
 567 }
 568
 569
 570 void GuiView::resizeEvent(QResizeEvent *)
 571 {
 572         updateFloatingGeometry();
 573 }
 574
 575
 576 void GuiView::moveEvent(QMoveEvent *)
 577 {
 578         updateFloatingGeometry();
 579 }
 580
 581
 582 void GuiView::show()
 583 {
 584         QMainWindow::setWindowTitle(qt_("LyX"));
 585         QMainWindow::show();
 586         updateFloatingGeometry();
 587 }
 588
 589
 590 void GuiView::busy(bool yes)
 591 {
 592         static_cast<GuiWorkArea *>(work_area_)->setUpdatesEnabled(!yes);
 593
 594         if (yes) {
 595                 work_area_->stopBlinkingCursor();
 596                 QApplication::setOverrideCursor(Qt::WaitCursor);
 597         }
 598         else {
 599                 work_area_->startBlinkingCursor();
 600                 QApplication::restoreOverrideCursor();
 601         }
 602 }
 603
 604
 605 Toolbars::ToolbarPtr GuiView::makeToolbar(ToolbarBackend::Toolbar const & tbb)
 606 {
 607         QLToolbar * Tb = new QLToolbar(tbb, *this);
 608         //static QLToolbar * lastTb = 0;
 609
 610         if (tbb.flags & ToolbarBackend::TOP) {
 611                         addToolBar(Qt::TopToolBarArea, Tb);
 612                         addToolBarBreak(Qt::TopToolBarArea);
 613         }
 614         if (tbb.flags & ToolbarBackend::BOTTOM) {
 615                 addToolBar(Qt::BottomToolBarArea, Tb);
 616                 /*
 617                 // Qt bug:
 618                 // http://www.trolltech.com/developer/task-tracker/index_html?id=137015&method=entry
 619                 // Doesn't work because the toolbar will evtl. be hidden.
 620                 if (lastTb)
 621                         insertToolBarBreak(lastTb);
 622                 lastTb = Tb;
 623                 */
 624         }
 625         if (tbb.flags & ToolbarBackend::LEFT) {
 626                 addToolBar(Qt::LeftToolBarArea, Tb);
 627         }
 628         if (tbb.flags & ToolbarBackend::RIGHT) {
 629                 addToolBar(Qt::RightToolBarArea, Tb);
 630         }
 631
 632         return Toolbars::ToolbarPtr(Tb);
 633 }
 634
 635 } // namespace frontend
 636 } // namespace lyx
 637
 638 #include "GuiView_moc.cpp"