//=========================================== // Lumina Desktop source code // Copyright (c) 2017-2018, Ken Moore // Available under the 3-clause BSD license // See the LICENSE file for full details //=========================================== #include "mainUI.h" #include "ui_mainUI.h" #include #include #include #include #include #include #include #include #include #include #include #include #include "PrintWidget.h" #define TESTING 0 MainUI::MainUI() : QMainWindow(), ui(new Ui::MainUI()){ ui->setupUi(this); //this->setWindowTitle(tr("Lumina PDF Viewer")); this->setWindowIcon( LXDG::findIcon("application-pdf","unknown")); presentationLabel = 0; CurrentPage = 1; lastdir = QDir::homePath(); BACKEND = new Renderer(); //Create the interface widgets WIDGET = new PrintWidget(this->centralWidget()); WIDGET->setVisible(false); WIDGET->setContextMenuPolicy(Qt::CustomContextMenu); WIDGET->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); clockTimer = new QTimer(this); clockTimer->setInterval(1000); //1-second updates to clock connect(clockTimer, SIGNAL(timeout()), this, SLOT(updateClock()) ); //frame_presenter = new QFrame(this); label_clock = new QLabel(this); label_clock->setAlignment(Qt::AlignCenter ); label_clock->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred); label_clock->setStyleSheet("QLabel{color: palette(highlight-text); background-color: palette(highlight); border-radius: 5px; }"); label_page = new QLabel(this); label_page->setAlignment(Qt::AlignRight | Qt::AlignVCenter); label_page->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Preferred); //Context Menu contextMenu = new QMenu(this); connect(contextMenu, SIGNAL(aboutToShow()), this, SLOT(updateContextMenu())); //Now put the widgets into the UI //ui->bookmarksFrame->setParent(WIDGET); //ui->findGroup->setParent(WIDGET); //qDebug() << "Setting central widget"; this->centralWidget()->layout()->replaceWidget(ui->label_replaceme, WIDGET); //setCentralWidget(WIDGET); ui->label_replaceme->setVisible(false); WIDGET->setContextMenuPolicy(Qt::CustomContextMenu); connect(WIDGET, SIGNAL(customContextMenuRequested(const QPoint&)),this, SLOT(showContextMenu(const QPoint&)) ); connect(WIDGET, SIGNAL(currentPageChanged()), this, SLOT(updatePageNumber()) ); connect(this, SIGNAL(PageLoaded(int)), this, SLOT(slotPageLoaded(int)) ); PrintDLG = new QPrintDialog(this); connect(PrintDLG, SIGNAL(accepted(QPrinter*)), this, SLOT(paintToPrinter(QPrinter*)) ); //connect(ui->menuStart_Presentation, SIGNAL(triggered(QAction*)), this, SLOT(slotStartPresentation(QAction*)) ); //Create the other interface widgets progress = new QProgressBar(this); progress->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred); progress->setFormat("%v/%m (%p%)"); // [current]/[total] progAct = ui->toolBar->addWidget(progress); progAct->setVisible(false); clockAct = ui->toolBar->addWidget(label_clock); clockAct->setVisible(false); pageAct = ui->toolBar->addWidget(label_page); pageAct->setVisible(false); //Put the various actions into logical groups QActionGroup *tmp = new QActionGroup(this); tmp->setExclusive(true); tmp->addAction(ui->actionFit_Width); tmp->addAction(ui->actionFit_Page); ui->actionFit_Page->setChecked(true); tmp = new QActionGroup(this); tmp->setExclusive(true); tmp->addAction(ui->actionSingle_Page); tmp->addAction(ui->actionDual_Pages); tmp->addAction(ui->actionAll_Pages); ui->actionSingle_Page->setChecked(true); //qDebug() << "Starting connections"; //Connect up the buttons connect(ui->actionClose, SIGNAL(triggered()), this, SLOT(close()) ); connect(ui->actionPrint, SIGNAL(triggered()), PrintDLG, SLOT(open()) ); connect(ui->actionFit_Width, SIGNAL(triggered()), WIDGET, SLOT(fitToWidth()) ); connect(ui->actionFit_Page, SIGNAL(triggered()), WIDGET, SLOT(fitView()) ); connect(ui->actionOpen_PDF, SIGNAL(triggered()), this, SLOT(OpenNewFile()) ); connect(ui->actionSingle_Page, SIGNAL(triggered()), WIDGET, SLOT(setSinglePageViewMode()) ); connect(ui->actionDual_Pages, SIGNAL(triggered()), WIDGET, SLOT(setFacingPagesViewMode()) ); connect(ui->actionAll_Pages, SIGNAL(triggered()), WIDGET, SLOT(setAllPagesViewMode()) ); //connect(ui->actionScroll_Mode, &QAction::triggered, this, [&] { this->setScroll(true); }); //connect(ui->actionSelect_Mode, &QAction::triggered, this, [&] { this->setScroll(false); }); connect(ui->actionZoom_In, &QAction::triggered, WIDGET, [&] { WIDGET->zoomIn(1.2); }); connect(ui->actionZoom_Out, &QAction::triggered, WIDGET, [&] { WIDGET->zoomOut(1.2); }); connect(ui->actionRotate_Counterclockwise, &QAction::triggered, this, [&] { WIDGET->setDegrees(-90); }); connect(ui->actionRotate_Clockwise, &QAction::triggered, this, [&] { WIDGET->setDegrees(90); }); connect(ui->actionZoom_In_2, &QAction::triggered, WIDGET, [&] { WIDGET->zoomIn(1.2); }); connect(ui->actionZoom_Out_2, &QAction::triggered, WIDGET, [&] { WIDGET->zoomOut(1.2); }); connect(ui->actionFirst_Page, SIGNAL(triggered()), this, SLOT(firstPage()) ); connect(ui->actionPrevious_Page, SIGNAL(triggered()), this, SLOT(prevPage()) ); connect(ui->actionNext_Page, SIGNAL(triggered()), this, SLOT(nextPage()) ); connect(ui->actionLast_Page, SIGNAL(triggered()), this, SLOT(lastPage()) ); connect(ui->actionProperties, &QAction::triggered, WIDGET, [&] { PROPDIALOG->show(); }); connect(ui->actionFind, &QAction::triggered, this, [&] { if(ui->findGroup->isVisible()) { ui->findGroup->setVisible(false); this->setFocus(); }else{ ui->findGroup->setVisible(true); ui->findGroup->setFocus(); } }); connect(ui->actionFind_Next, &QAction::triggered, this, [&] { find(ui->textEdit->text(), true); }); connect(ui->actionFind_Previous, &QAction::triggered, this, [&] { find(ui->textEdit->text(), false); }); connect(ui->findNextB, &QPushButton::clicked, this, [&] { find(ui->textEdit->text(), true); }); connect(ui->findPrevB, &QPushButton::clicked, this, [&] { find(ui->textEdit->text(), false); }); connect(ui->matchCase, &QPushButton::clicked, this, [&] (bool value) { this->matchCase = value; }); connect(ui->closeFind, &QPushButton::clicked, this, [&] { ui->findGroup->setVisible(false); this->setFocus(); }); connect(ui->closeBookmarks, &QPushButton::clicked, this, [&] { ui->bookmarksFrame->setVisible(false); this->setFocus(); }); connect(ui->actionClearHighlights, &QAction::triggered, WIDGET, [&] { WIDGET->updatePreview(); }); connect(ui->actionBookmarks, SIGNAL(triggered()), this, SLOT(showBookmarks())); //qDebug() << "Finished connctions"; //int curP = WIDGET->currentPage()-1; //currentPage reports pages starting at 1 //int lastP = numPages-1; ui->actionFirst_Page->setText(tr("First Page")); ui->actionPrevious_Page->setText(tr("Previous Page")); ui->actionNext_Page->setText(tr("Next Page")); ui->actionLast_Page->setText(tr("Last Page")); /*ui->actionFirst_Page->setEnabled(curP!=0); ui->actionPrevious_Page->setEnabled(curP>0); ui->actionNext_Page->setEnabled(curPactionLast_Page->setEnabled(curP!=lastP);*/ ui->actionStart_Here->setText(tr("Start Presentation (current slide)")); connect(ui->actionStart_Here, SIGNAL(triggered()), this, SLOT(startPresentationHere()) ); ui->actionStart_Begin->setText(tr("Start Presentation (at beginning)")); connect(ui->actionStart_Begin, SIGNAL(triggered()), this, SLOT(startPresentationBeginning()) ); ui->actionStop_Presentation->setText(tr("Stop Presentation")); connect(ui->actionStop_Presentation, SIGNAL(triggered()), this, SLOT(closePresentation()) ); //Setup all the icons ui->actionPrint->setIcon( LXDG::findIcon("document-print","")); ui->actionClose->setIcon( LXDG::findIcon("window-close","")); ui->actionFit_Width->setIcon(LXDG::findIcon("transform-scale","")); ui->actionFit_Page->setIcon(LXDG::findIcon("zoom-fit-best","")); ui->actionOpen_PDF->setIcon(LXDG::findIcon("document-open","")); ui->actionSingle_Page->setIcon(LXDG::findIcon("format-view-agenda","")); ui->actionDual_Pages->setIcon(LXDG::findIcon("format-view-grid-small","")); ui->actionAll_Pages->setIcon(LXDG::findIcon("format-view-grid-large","")); ui->actionScroll_Mode->setIcon(LXDG::findIcon("cursor-pointer","")); ui->actionSelect_Mode->setIcon(LXDG::findIcon("cursor-text","")); ui->actionZoom_In->setIcon(LXDG::findIcon("zoom-in","")); ui->actionZoom_Out->setIcon(LXDG::findIcon("zoom-out","")); ui->actionZoom_In_2->setIcon(LXDG::findIcon("zoom-in","")); ui->actionZoom_Out_2->setIcon(LXDG::findIcon("zoom-out","")); ui->actionRotate_Counterclockwise->setIcon(LXDG::findIcon("object-rotate-left","")); ui->actionRotate_Clockwise->setIcon(LXDG::findIcon("object-rotate-right","")); ui->actionFirst_Page->setIcon(LXDG::findIcon("go-first","")); ui->actionPrevious_Page->setIcon(LXDG::findIcon("go-previous","")); ui->actionNext_Page->setIcon(LXDG::findIcon("go-next","")); ui->actionLast_Page->setIcon(LXDG::findIcon("go-last","")); ui->actionStart_Here->setIcon(LXDG::findIcon("media-playback-start-circled","")); ui->actionStart_Begin->setIcon(LXDG::findIcon("presentation-play","")); ui->actionStop_Presentation->setIcon(LXDG::findIcon("media-playback-stop-circled","")); ui->actionBookmarks->setIcon(LXDG::findIcon("bookmark-new","")); ui->actionFind->setIcon(LXDG::findIcon("edit-find","")); ui->actionFind_Next->setIcon(LXDG::findIcon("edit-find-next","")); ui->actionFind_Previous->setIcon(LXDG::findIcon("edit-find-prev","")); ui->actionProperties->setIcon(LXDG::findIcon("dialog-information","")); ui->actionSettings->setIcon(LXDG::findIcon("document-properties","")); ui->findNextB->setIcon(LXDG::findIcon("go-down-search")); ui->findPrevB->setIcon(LXDG::findIcon("go-up-search")); ui->actionClearHighlights->setIcon(LXDG::findIcon("format-text-clear","")); ui->findNextB->setIcon(LXDG::findIcon("go-down-search")); ui->matchCase->setIcon(LXDG::findIcon("format-text-italic")); ui->closeFind->setIcon(LXDG::findIcon("dialog-close")); ui->closeBookmarks->setIcon(LXDG::findIcon("dialog-close")); //qDebug() << "Finished setting icons"; //Now set the default state of the menu's and actions ui->actionStop_Presentation->setEnabled(false); ui->actionStart_Here->setEnabled(false); ui->actionStart_Begin->setEnabled(false); ui->findGroup->setVisible(false); ui->bookmarksFrame->setVisible(false); //TESTING features/functionality ui->actionSettings->setEnabled(TESTING); ui->actionSettings->setVisible(TESTING); ui->actionBookmarks->setEnabled(TESTING); ui->actionBookmarks->setVisible(TESTING); ui->actionScroll_Mode->setEnabled(TESTING); ui->actionScroll_Mode->setVisible(TESTING); ui->actionSelect_Mode->setEnabled(TESTING); ui->actionSelect_Mode->setVisible(TESTING); ui->actionProperties->setEnabled(TESTING); ui->actionProperties->setVisible(TESTING); ui->menuSettings->setEnabled(TESTING); ui->menuSettings->setVisible(TESTING); if(!TESTING){ ui->menubar->removeAction(ui->menuSettings->menuAction() ); } } MainUI::~MainUI(){ delete BACKEND; } void MainUI::loadFile(QString path){ if(!QFile::exists(path) || path.isEmpty() ){ return; } QString password; bool ok = true; while( ok && !BACKEND->loadDocument(path, password) && BACKEND->needPassword() ){ password = QInputDialog::getText(this, tr("Unlock PDF"), tr("Password:"), QLineEdit::Password, "", &ok); if(!ok){ break; } //cancelled } //Clear the current display WIDGET->setPictures(0); //Turn off the loadingHash in the preview widget for now loadingHash.clear(); QTimer::singleShot(10, WIDGET, SLOT(updatePreview())); //start loading the file preview //Load the new document info this->setWindowTitle( BACKEND->title()); if(BACKEND->needPassword()){ return; } //cancelled; //qDebug() << " - Document Setup : start loading pages now"; //startLoadingPages(); QTimer::singleShot(50, this, SLOT(startLoadingPages()) ); } void MainUI::loadPage(int num, MainUI *obj, QSize dpi){ //qDebug() << " - Render Page:" << num; QImage img = BACKEND->renderPage(num, dpi); loadingHash.insert(num, img); obj->emit PageLoaded(num); } QScreen* MainUI::getScreen(bool current, bool &cancelled){ //Note: the "cancelled" boolian is actually an output - not an input QList screens = QApplication::screens(); cancelled = false; if(screens.length() ==1){ return screens[0]; } //only one option //Multiple screens available - figure it out if(current){ //Just return the screen the window is currently on for(int i=0; igeometry().contains( this->mapToGlobal(this->pos()) )){ return screens[i]; } } //If it gets this far, there was an error and it should just return the primary screen return QApplication::primaryScreen(); }else{ //Ask the user to select a screen (for presentations, etc..) QStringList names; for(int i=0; isize().width())+"x"+QString::number(screens[i]->size().height()); names << QString(tr("%1 (%2)")).arg(screens[i]->name(), screensize); } bool ok = false; QString sel = QInputDialog::getItem(this, tr("Select Screen"), tr("Screen:"), names, 0, false, &ok); cancelled = !ok; if(!ok){ return screens[0]; } //cancelled - just return the first one int index = names.indexOf(sel); if(index < 0){ return screens[0]; } //error - should never happen though return screens[index]; //return the selected screen } } void MainUI::startPresentation(bool atStart){ if(loadingHash.isEmpty()){ return; } //just in case bool cancelled = false; QScreen *screen = getScreen(false, cancelled); //let the user select which screen to use (if multiples) if(cancelled){ return;} int page = 1; if(!atStart){ page = WIDGET->currentPage(); } //PDPI = QSize(SCALEFACTOR*screen->physicalDotsPerInchX(), SCALEFACTOR*screen->physicalDotsPerInchY()); //Now create the full-screen window on the selected screen if(presentationLabel == 0){ //Create the label and any special flags for it presentationLabel = new PresentationLabel(); presentationLabel->setStyleSheet("background-color: black;"); presentationLabel->setAlignment(Qt::AlignCenter); presentationLabel->setContextMenuPolicy(Qt::CustomContextMenu); connect(presentationLabel, SIGNAL(customContextMenuRequested(const QPoint&)), this, SLOT(showContextMenu(const QPoint&)) ); connect(presentationLabel, SIGNAL(nextSlide()), this, SLOT(nextPage()) ); } //Now put the label in the proper location presentationLabel->setGeometry(screen->geometry()); presentationLabel->showFullScreen(); ui->actionStop_Presentation->setEnabled(true); ui->actionStart_Here->setEnabled(false); ui->actionStart_Begin->setEnabled(false); updateClock(); updatePageNumber(); clockAct->setVisible(true); clockTimer->start(); QApplication::processEvents(); //Now start at the proper page ShowPage(page); this->grabKeyboard(); //Grab any keyboard events - even from the presentation window } void MainUI::ShowPage(int page){ //Check for valid document/page //qDebug() << "Load Page:" << page << "/" << BACKEND->numPages() << "Index:" << page; if(page <= 0 || page > BACKEND->numPages() || (page==BACKEND->numPages() && CurrentPage==page) ){ endPresentation(); return; //invalid - no document loaded or invalid page specified } WIDGET->setCurrentPage(page); //page numbers start at 1 for this widget //Stop here if no presentation currently running if(presentationLabel == 0 || !presentationLabel->isVisible()){ return; } //qDebug() << "Show Page:" << page << "/" << numPages; CurrentPage = page; QImage PAGEIMAGE; if(pagenumPages()+1){ PAGEIMAGE = loadingHash[page-1]; } //Now scale the image according to the user-designations and show it if(!PAGEIMAGE.isNull()){ QPixmap pix; pix.convertFromImage( PAGEIMAGE.scaled( presentationLabel->size(), Qt::KeepAspectRatio, Qt::SmoothTransformation) ); presentationLabel->setPixmap(pix); presentationLabel->show(); //always make sure it was not hidden }else{ //Blank page (useful so there is one blank page after the last slide before stopping the presentation) presentationLabel->setPixmap(QPixmap()); } } void MainUI::endPresentation(){ if(presentationLabel==0 || !presentationLabel->isVisible()){ return; } //not in presentation mode presentationLabel->hide(); //just hide this (no need to re-create the label for future presentations) ui->actionStop_Presentation->setEnabled(false); ui->actionStart_Here->setEnabled(true); ui->actionStart_Begin->setEnabled(true); clockTimer->stop(); clockAct->setVisible(false); this->releaseKeyboard(); updatePageNumber(); } void MainUI::startLoadingPages(){ //qDebug() <<"Start Loading Pages"; if(!loadingHash.isEmpty()){ return; } //currently loaded[ing] //loadingHash.clear(); //qDebug() << "Update Progress Bar"; progress->setRange(0, BACKEND->numPages()); progress->setValue(0); progAct->setVisible(true); pageAct->setVisible(false); //PERFORMANCE NOTES: // Using Poppler to scale the image (adjust dpi value) helps a bit but you take a larger CPU loading hit (and still quite a lot of pixelization) // Using Qt to scale the image (adjust page value) smooths out the image quite a bit without a lot of performance loss (but cannot scale up without pixelization) // The best approach seams to be to increase the DPI a bit, but match that with the same scaling on the page size (smoothing) //double scalefactor = 2.5; //fz_rect page_rect; //fz_bound_page(CTX, fz_load_page(CTX, DOC, 0), &page_rect); //pageSize = QSizeF((page_rect.x1 - page_rect.x0)/72.0, (page_rect.y1 - page_rect.y0)/72.0); QSize DPI(300,300); //print-quality (some printers even go to 600 DPI nowdays) /*qDebug() << "Screen Resolutions:"; QList screens = QApplication::screens(); for(int i=0; iname() << screens[i]->logicalDotsPerInchX() << screens[i]->logicalDotsPerInchY(); }*/ bool async = BACKEND->loadMultiThread(); for(int i=0; inumPages(); i++){ //qDebug() << " - Kickoff page load:" << i; if(async){ QtConcurrent::run(this, &MainUI::loadPage, i, this, DPI); }else{ loadPage(i, this, DPI); } } //qDebug() << "Finish page loading kickoff"; } void MainUI::slotPageLoaded(int page){ Q_UNUSED(page); //qDebug() << "Page Loaded:" << page; int finished = loadingHash.keys().length(); //qDebug() << " - finished:" << finished; if(finished == BACKEND->numPages()){ progAct->setVisible(false); WIDGET->setPictures(&loadingHash); WIDGET->setCurrentPage(1); PROPDIALOG = new PropDialog(BACKEND); PROPDIALOG->setSize(pageSize); ui->actionStop_Presentation->setEnabled(false); ui->actionStart_Here->setEnabled(true); ui->actionStart_Begin->setEnabled(true); pageAct->setVisible(true); //qDebug() << " - Document Setup: All pages loaded"; QTimer::singleShot(10, WIDGET, SLOT(updatePreview())); //start loading the file preview }else{ progress->setValue(finished); } } void MainUI::paintToPrinter(QPrinter *PRINTER){ if(loadingHash.keys().length() != BACKEND->numPages()){ return; } //qDebug() << "paintToPrinter"; int pages = BACKEND->numPages(); int firstpage = 0; int copies = PRINTER->copyCount(); bool collate = PRINTER->collateCopies(); qDebug() << "PRINTER DPI:" << PRINTER->resolution() << PRINTER->supportedResolutions(); return; if(PRINTER->resolution() < 300){ //Try to get 300 DPI resolution at least PRINTER->setResolution(300); qDebug() << "Trying to change print resolution to 300 minimum"; qDebug() << " -- Resolutions listed as supported:" << PRINTER->supportedResolutions(); } //bool duplex = (PRINTER->duplex()!=QPrinter::DuplexNone); //Determine the first page that needs to be printed, and the range if((PRINTER->fromPage() != PRINTER->toPage() || PRINTER->fromPage()!=0 ) && PRINTER->printRange()==QPrinter::PageRange ){ firstpage = PRINTER->fromPage() - 1; pages = PRINTER->toPage(); } qDebug() << "Start Printing PDF: Pages" << PRINTER->fromPage() <<" to "<< PRINTER->toPage()<< " Copies:" << copies << " collate:" << collate; QList pageCount; //Assemble the page order/count based on printer settings for(int i=firstpage; ipageOrder()==QPrinter::LastPageFirst){ //Need to reverse the order of the list QList tmp = pageCount; pageCount.clear(); for(int i=tmp.length()-1; i>=0; i--){ pageCount << tmp[i]; } //qDebug() << " - reversed:" << pageCount; } if(collate && copies>0){ QList orig = pageCount; //original array of pages for(int c=1; cpageRect().width(), PRINTER->pageRect().height()); bool landscape = PRINTER->orientation()==QPrinter::Landscape; if(landscape){ sz = QSize(sz.height(), sz.width() ); } //flip the size dimensions as needed //Now send out the pages in the right order/format QPainter painter(PRINTER); //Ensure all the antialiasing/smoothing options are turned on painter.setRenderHint(QPainter::Antialiasing); painter.setRenderHint(QPainter::TextAntialiasing); painter.setRenderHint(QPainter::SmoothPixmapTransform); QTransform transF; transF.rotate(90); //Show the progress bar progAct->setVisible(true); progress->setRange(0, pageCount.length()-1); for(int i=0; inewPage(); } progress->setValue(i); QApplication::processEvents(); QImage img = loadingHash[pageCount[i]].scaled(sz, Qt::KeepAspectRatio, Qt::SmoothTransformation); //Now draw the image painter.drawImage(0,0,img); } progAct->setVisible(false); } void MainUI::OpenNewFile(){ //Prompt for a file QString path = QFileDialog::getOpenFileName(this, tr("Open PDF"), lastdir, tr("PDF Documents (*.pdf)")); //Now Open it if(!path.isEmpty()){ loadFile(path); } } void MainUI::updateClock(){ label_clock->setText( QDateTime::currentDateTime().toString("hh:mm:ss") ); } void MainUI::updatePageNumber(){ //qDebug() << "UpdatePageNumber"; QString text; if(presentationLabel==0 || !presentationLabel->isVisible()){ text = tr("Page %1 of %2"); } else{ text = "%1/%2"; } label_page->setText( text.arg( QString::number(WIDGET->currentPage()), QString::number(BACKEND->numPages()) )); } /*void MainUI::setScroll(bool tog) { if(tog) { QApplication::setOverrideCursor(Qt::OpenHandCursor); }else{ QApplication::setOverrideCursor(Qt::IBeamCursor); } }*/ void MainUI::updateContextMenu(){ //qDebug() << "UpdateContextMenu"; contextMenu->clear(); contextMenu->addSection( QString(tr("Page %1 of %2")).arg(QString::number(WIDGET->currentPage()), QString::number(BACKEND->numPages()) ) ); contextMenu->addAction(ui->actionPrevious_Page); contextMenu->addAction(ui->actionNext_Page); contextMenu->addSeparator(); contextMenu->addAction(ui->actionFirst_Page); contextMenu->addAction(ui->actionLast_Page); contextMenu->addSeparator(); if(presentationLabel==0 || !presentationLabel->isVisible()){ contextMenu->addAction(ui->actionStart_Begin); contextMenu->addAction(ui->actionStart_Here); }else{ contextMenu->addAction(ui->actionStop_Presentation); } } void MainUI::keyPressEvent(QKeyEvent *event){ //See if this is one of the special hotkeys and act appropriately bool inPresentation = (presentationLabel!=0); if( event->key()==Qt::Key_Escape || event->key()==Qt::Key_Backspace){ if(inPresentation){ endPresentation(); } }else if(event->key()==Qt::Key_Right || event->key()==Qt::Key_Space || event->key()==Qt::Key_PageDown){ nextPage(); }else if(event->key()==Qt::Key_Left || event->key()==Qt::Key_PageUp){ prevPage(); }else if(event->key()==Qt::Key_Home){ firstPage(); }else if(event->key()==Qt::Key_End){ lastPage(); }else if(event->key()==Qt::Key_F11){ if(inPresentation){ endPresentation(); } else{ startPresentationHere(); } }else if(event->key() == Qt::Key_Up) { //Scroll the widget up }else if(event->key() == Qt::Key_Down) { //Scroll the widget down /*qDebug() << "Send Wheel Event"; QWheelEvent wEvent( WIDGET->mapFromGlobal(QCursor::pos()), QCursor::pos(),QPoint(0,0), QPoint(0,30), 0, Qt::Vertical, Qt::LeftButton, Qt::NoModifier); QApplication::sendEvent(WIDGET, &wEvent);*/ }else{ QMainWindow::keyPressEvent(event); } } void MainUI::wheelEvent(QWheelEvent *event) { //Scroll the window according to the mouse wheel QMainWindow::wheelEvent(event); } void MainUI::find(QString text, bool forward) { if(!text.isEmpty()) { static bool previousMatchCase = matchCase; //qDebug() << "Finding Text"; //Detemine if it is the first time searching or a new search string bool newSearch = results.empty() || !(results[0]->text() == text); //Also search again if match case is turned on/off if(previousMatchCase != matchCase) { newSearch = true; previousMatchCase = matchCase; } //Clear results and highlights if the user gives a new search string if(newSearch) { //clear out the old results if(!results.empty()) { foreach (TextData* td, results) delete td; results.clear(); } QTimer::singleShot(10, WIDGET, SLOT(updatePreview())); ui->resultsLabel->setText(""); //Get the new search results results = BACKEND->searchDocument(text, matchCase); //qDebug() << "Total Results: " << results.size(); currentHighlight = (forward) ? -1 : results.size(); } //qDebug() << "Jumping to next result"; if(!results.empty()) { //Jump to the location of the next or previous textbox and highlight if(forward) { currentHighlight++; if(currentHighlight >= results.size()) currentHighlight %= results.size(); }else{ currentHighlight--; //Ensure currentHighlight will be between 0 and results.size() - 1 if(currentHighlight < 0) currentHighlight = results.size() - 1; } ui->resultsLabel->setText(QString::number(currentHighlight+1) + " of " + QString::number(results.size()) + " results"); TextData *currentText = results[currentHighlight]; WIDGET->setCurrentPage(currentText->page()); //qDebug() << "Jump to page: " << currentText.page; //Current Bug: Does not highlight results[0] WIDGET->highlightText(currentText); }else{ ui->resultsLabel->setText("No results found"); } } } void MainUI::showBookmarks() { ui->bookmarksFrame->setVisible(true); }