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         int posx_offset;
 104         int posy_offset;
 105
 106         GuiViewPrivate() : wt(0), posx_offset(0), posy_offset(0)
 107         {}
 108 };
 109
 110 GuiView::GuiView(int id)
 111         : QMainWindow(), LyXView(id), commandbuffer_(0), d(*new GuiViewPrivate)
 112 {
 113         setAttribute(Qt::WA_DeleteOnClose, true);
 114         setAttribute(Qt::WA_QuitOnClose, true);
 115
 116 //      setToolButtonStyle(Qt::ToolButtonIconOnly);
 117 //      setIconSize(QSize(12,12));
 118
 119 //      bufferview_.reset(new BufferView(this, width, height));
 120
 121 #ifndef Q_WS_MACX
 122         //  assign an icon to main form. We do not do it under Qt/Mac,
 123         //  since the icon is provided in the application bundle.
 124         string const iconname = libFileSearch("images", "lyx", "xpm");
 125         if (!iconname.empty())
 126                 setWindowIcon(QPixmap(toqstr(iconname)));
 127 #endif
 128 }
 129
 130
 131 GuiView::~GuiView()
 132 {
 133         delete &d;
 134 }
 135
 136
 137 void GuiView::close()
 138 {
 139         QMainWindow::close();
 140 }
 141
 142 QMenu* GuiView::createPopupMenu()
 143 {
 144         // disable toolbar popup menu
 145         // Qt docs: Ownership of the popup menu is transferred to the caller.
 146         return new QMenu;
 147 }
 148
 149 void GuiView::init()
 150 {
 151         menubar_.reset(new QLMenubar(this, menubackend));
 152         QObject::connect(menuBar(), SIGNAL(triggered(QAction *)),
 153                 this, SLOT(updateMenu(QAction *)));
 154
 155         getToolbars().init();
 156
 157         statusBar()->setSizeGripEnabled(false);
 158
 159         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 160                 this, SLOT(update_view_state_qt()));
 161
 162         if (!work_area_->bufferView().buffer() && !theBufferList().empty())
 163                 setBuffer(theBufferList().first());
 164
 165         // make sure the buttons are disabled if needed
 166         updateToolbars();
 167         updateLayoutChoice();
 168         updateMenubar();
 169 }
 170
 171
 172 void GuiView::saveGeometry()
 173 {
 174         // FIXME:
 175         // change the ifdef to 'geometry = normalGeometry();' only
 176         // when Trolltech has fixed the broken normalGeometry on X11:
 177         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 178         // Then also the moveEvent, resizeEvent, and the
 179         // code for floatingGeometry_ can be removed;
 180         // adjust GuiView::setGeometry()
 181 #ifdef Q_WS_WIN
 182         QRect geometry = normalGeometry();
 183 #else
 184         updateFloatingGeometry();
 185         QRect geometry = floatingGeometry_;
 186 #endif
 187
 188         // save windows size and position
 189         Session & session = LyX::ref().session();
 190         session.sessionInfo().save("WindowWidth", convert<string>(geometry.width()));
 191         session.sessionInfo().save("WindowHeight", convert<string>(geometry.height()));
 192         session.sessionInfo().save("WindowIsMaximized", (isMaximized() ? "yes" : "no"));
 193         if (lyxrc.geometry_xysaved) {
 194                 session.sessionInfo().save("WindowPosX", convert<string>(geometry.x() + d.posx_offset));
 195                 session.sessionInfo().save("WindowPosY", convert<string>(geometry.y() + d.posy_offset));
 196         }
 197         getToolbars().saveToolbarInfo();
 198 }
 199
 200 void GuiView::setGeometry(unsigned int width,
 201                                                                   unsigned int height,
 202                                                                   int posx, int posy,
 203                                                                   bool maximize)
 204 {
 205         // only true when the -geometry option was NOT used
 206         if (width != 0 && height != 0) {
 207                 if (posx != -1 && posy != -1) {
 208                         // if there are ever startup positioning problems
 209                         // on a virtual desktop then check the 6 lines below
 210                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 211                         QDesktopWidget& dw = *qApp->desktop();
 212                         QRect desk = dw.availableGeometry(dw.primaryScreen());
 213                         (posx >= desk.width() ? posx = 50 : true);
 214                         (posy >= desk.height()? posy = 50 : true);
 215 #ifdef Q_WS_WIN
 216                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 217                         QWidget::setGeometry(posx, posy, width, height);
 218 #else
 219                         resize(width, height);
 220                         move(posx, posy);
 221 #endif
 222                 } else {
 223                         resize(width, height);
 224                 }
 225
 226                 if (maximize)
 227                         setWindowState(Qt::WindowMaximized);
 228         }
 229
 230         show();
 231
 232         // For an unknown reason, the Window title update is not effective for
 233         // the second windows up until it is shown on screen (Qt bug?).
 234         updateWindowTitle();
 235
 236         // after show geometry() has changed (Qt bug?)
 237         // we compensate the drift when storing the position
 238         d.posx_offset = 0;
 239         d.posy_offset = 0;
 240         if (width != 0 && height != 0)
 241                 if (posx != -1 && posy != -1) {
 242 #ifdef Q_WS_WIN
 243                         d.posx_offset = posx - normalGeometry().x();
 244                         d.posy_offset = posy - normalGeometry().y();
 245 #else
 246                         if (!maximize) {
 247                                 d.posx_offset = posx - geometry().x();
 248                                 d.posy_offset = posy - geometry().y();
 249                         }
 250 #endif
 251                 }
 252 }
 253
 254
 255 void GuiView::updateMenu(QAction * /*action*/)
 256 {
 257         menubar_->update();
 258 }
 259
 260
 261 void GuiView::setWindowTitle(docstring const & t, docstring const & it)
 262 {
 263         QString title = windowTitle();
 264         QString new_title = toqstr(t);
 265         if (title != new_title) {
 266                 QMainWindow::setWindowTitle(new_title);
 267                 QMainWindow::setWindowIconText(toqstr(it));
 268         }
 269 }
 270
 271
 272 void GuiView::addCommandBuffer(QToolBar * toolbar)
 273 {
 274         commandbuffer_ = new QCommandBuffer(this, *controlcommand_);
 275         focus_command_buffer.connect(boost::bind(&GuiView::focus_command_widget, this));
 276         toolbar->addWidget(commandbuffer_);
 277 }
 278
 279
 280 void GuiView::message(docstring const & str)
 281 {
 282         statusBar()->showMessage(toqstr(str));
 283         statusbar_timer_.stop();
 284         statusbar_timer_.start(statusbar_timer_value);
 285 }
 286
 287
 288 void GuiView::clearMessage()
 289 {
 290         update_view_state_qt();
 291 }
 292
 293
 294 void GuiView::focus_command_widget()
 295 {
 296         if (commandbuffer_)
 297                 commandbuffer_->focus_command();
 298 }
 299
 300
 301 void GuiView::update_view_state_qt()
 302 {
 303         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 304         statusbar_timer_.stop();
 305 }
 306
 307 void GuiView::initTab(QWidget* workarea)
 308 {
 309         d.wt = new WidgetWithTabBar(workarea);
 310         setCentralWidget(d.wt);
 311         QObject::connect(d.wt->tabbar, SIGNAL(currentChanged(int)),
 312                         this, SLOT(currentTabChanged(int)));
 313 }
 314
 315 void GuiView::updateTab()
 316 {
 317         QTabBar& tb = *d.wt->tabbar;
 318
 319         // update when all  is done
 320         tb.blockSignals(true);
 321
 322         typedef std::vector<string> Strings;
 323         Strings const names = theBufferList().getFileNames();
 324         size_t n_size = names.size();
 325
 326         Strings addtab;
 327         // show tabs only when there is more
 328         // than one file opened
 329         if (n_size > 1)
 330         {
 331                 for (size_t i = 0; i != n_size; i++)
 332                         if (d.namemap.find(names[i]) == d.namemap.end())
 333                                 addtab.push_back(names.at(i));
 334         }
 335
 336         for(size_t i = 0; i<addtab.size(); i++)
 337         {
 338                 QString tab_name = lyx::toqstr(onlyFilename(addtab.at(i)));
 339                 d.namemap.insert(GuiViewPrivate::NameMapPair(addtab.at(i), tab_name));
 340                 tb.addTab(tab_name);
 341         }
 342
 343         // check if all names showed by the tabs
 344         // are also in the current bufferlist
 345         Strings removetab;
 346         bool notall = true;
 347         if (n_size < 2)
 348                 notall = false;
 349         std::map<string, QString>::iterator tabit = d.namemap.begin();
 350         for (;tabit != d.namemap.end(); ++tabit)
 351         {
 352                 bool found = false;
 353                 for (size_t i = 0; i != n_size; i++)
 354                         if (tabit->first == names.at(i) && notall)
 355                                 found = true;
 356                 if (!found)
 357                         removetab.push_back(tabit->first);
 358         }
 359
 360
 361         // remove tabs
 362         for(size_t i = 0; i<removetab.size(); i++)
 363         {
 364                 if (d.namemap.find(removetab.at(i)) != d.namemap.end())
 365                 {
 366                         tabit = d.namemap.find(removetab.at(i));
 367                         for (int i = 0; i < tb.count(); i++)
 368                                 if (tb.tabText(i) == tabit->second)
 369                                 {
 370                                         tb.removeTab(i);
 371                                         break;
 372                                 }
 373                         d.namemap.erase(tabit);
 374                 }
 375         }
 376
 377         // rebuild func map
 378         if (removetab.size() > 0 || addtab.size() > 0)
 379         {
 380                 d.funcmap.clear();
 381                 tabit = d.namemap.begin();
 382                 for (;tabit != d.namemap.end(); ++tabit)
 383                 {
 384                         QTabBar& tb = *d.wt->tabbar;
 385                         for (int i = 0; i < tb.count(); i++)
 386                         {
 387                                 if (tb.tabText(i) == tabit->second)
 388                                 {
 389                                         FuncRequest func(LFUN_BUFFER_SWITCH, tabit->first);
 390                                         d.funcmap.insert(GuiViewPrivate::FuncMapPair(i, func));
 391                                         break;
 392                                 }
 393                         }
 394                 }
 395         }
 396
 397         // set current tab
 398         if (view()->buffer())
 399         {
 400                 string cur_title = view()->buffer()->fileName();
 401                 if (d.namemap.find(cur_title) != d.namemap.end())
 402                 {
 403                         QString tabname = d.namemap.find(cur_title)->second;
 404                         for (int i = 0; i < tb.count(); i++)
 405                                 if (tb.tabText(i) == tabname)
 406                                 {
 407                                         tb.setCurrentIndex(i);
 408                                         break;
 409                                 }
 410                 }
 411         }
 412
 413         tb.blockSignals(false);
 414         d.wt->update();
 415 }
 416
 417 void GuiView::currentTabChanged (int index)
 418 {
 419         std::map<int, FuncRequest>::const_iterator it = d.funcmap.find(index);
 420         if (it != d.funcmap.end())
 421                 activated(it->second);
 422 }
 423
 424
 425 void GuiView::updateStatusBar()
 426 {
 427         // let the user see the explicit message
 428         if (statusbar_timer_.isActive())
 429                 return;
 430
 431         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 432 }
 433
 434
 435 void GuiView::activated(FuncRequest const & func)
 436 {
 437         dispatch(func);
 438 }
 439
 440
 441 bool GuiView::hasFocus() const
 442 {
 443         return qApp->activeWindow() == this;
 444 }
 445
 446
 447 void  GuiView::updateFloatingGeometry()
 448 {
 449         if (!isMaximized())
 450                 floatingGeometry_ = QRect(x(), y(), width(), height());
 451 }
 452
 453
 454 void GuiView::resizeEvent(QResizeEvent *)
 455 {
 456         updateFloatingGeometry();
 457 }
 458
 459
 460 void GuiView::moveEvent(QMoveEvent *)
 461 {
 462         updateFloatingGeometry();
 463 }
 464
 465
 466 void GuiView::closeEvent(QCloseEvent * close_event)
 467 {
 468         GuiImplementation & gui
 469                 = static_cast<GuiImplementation &>(theApp->gui());
 470
 471         vector<int> const & view_ids = gui.viewIds();
 472
 473         if (view_ids.size() == 1 && !theBufferList().quitWriteAll()) {
 474                 close_event->ignore();
 475                 return;
 476         }
 477
 478         saveGeometry();
 479         gui.unregisterView(this);
 480 }
 481
 482
 483 void GuiView::show()
 484 {
 485         QMainWindow::setWindowTitle(qt_("LyX"));
 486         QMainWindow::show();
 487         updateFloatingGeometry();
 488 }
 489
 490
 491 void GuiView::busy(bool yes)
 492 {
 493         static_cast<GuiWorkArea *>(work_area_)->setUpdatesEnabled(!yes);
 494
 495         if (yes) {
 496                 work_area_->stopBlinkingCursor();
 497                 QApplication::setOverrideCursor(Qt::WaitCursor);
 498         }
 499         else {
 500                 work_area_->startBlinkingCursor();
 501                 QApplication::restoreOverrideCursor();
 502         }
 503 }
 504
 505
 506 Toolbars::ToolbarPtr GuiView::makeToolbar(ToolbarBackend::Toolbar const & tbb)
 507 {
 508         QLToolbar * Tb = new QLToolbar(tbb, *this);
 509         //static QLToolbar * lastTb = 0;
 510
 511         if (tbb.flags & ToolbarBackend::TOP) {
 512                         addToolBar(Qt::TopToolBarArea, Tb);
 513                         addToolBarBreak(Qt::TopToolBarArea);
 514         }
 515         if (tbb.flags & ToolbarBackend::BOTTOM) {
 516                 addToolBar(Qt::BottomToolBarArea, Tb);
 517                 /*
 518                 // Qt bug:
 519                 // http://www.trolltech.com/developer/task-tracker/index_html?id=137015&method=entry
 520                 // Doesn't work because the toolbar will evtl. be hidden.
 521                 if (lastTb)
 522                         insertToolBarBreak(lastTb);
 523                 lastTb = Tb;
 524                 */
 525         }
 526         if (tbb.flags & ToolbarBackend::LEFT) {
 527                 addToolBar(Qt::LeftToolBarArea, Tb);
 528         }
 529         if (tbb.flags & ToolbarBackend::RIGHT) {
 530                 addToolBar(Qt::RightToolBarArea, Tb);
 531         }
 532
 533         return Toolbars::ToolbarPtr(Tb);
 534 }
 535
 536 } // namespace frontend
 537 } // namespace lyx
 538
 539 #include "GuiView_moc.cpp"