1 files changed, 56 insertions, 1 deletions

diff --git a/src-qt5/experimental/lumina-pdf/mainUI.h b/src-qt5/experimental/lumina-pdf/mainUI.h
index 1bd1699b..fa1d5a55 100644
--- a/src-qt5/experimental/lumina-pdf/mainUI.h
+++ b/src-qt5/experimental/lumina-pdf/mainUI.h
@@ -12,6 +12,9 @@
 #include <QPrinter>
 #include <QMainWindow>
 #include <QProgressBar>
+#include <QLabel>
+#include <QKeyEvent>
+#include <QDebug>
 
 #include <poppler-qt5.h>
 
@@ -41,12 +44,64 @@ private:
 	QProgressBar *progress;
 	QAction *progAct; //action associated with the progressbar
 
-	
+	//PDF Page Loading cache variables
+	QHash<int, QImage> loadingHash;
+	int numPages;
+
+	void loadPage(int num, Poppler::Document *doc, MainUI *obj, QSize dpi, QSizeF page);
+
+	//Functions/variables for the presentation mode
+	QLabel *presentationLabel;
+	QScreen *getScreen(bool current, bool &cancelled);
+	int CurrentPage;
+	void startPresentation(bool atStart);
+	void ShowPage(int page);
+	void endPresentation();
+
 private slots:
+	void startLoadingPages(QPrinter *printer);
+	void slotPageLoaded(int);
+	void slotStartPresentation(QAction *act);
+
 	void paintOnWidget(QPrinter *PRINTER);
 
 	//Button Slots
 	void OpenNewFile();
 
+signals:
+	void PageLoaded(int);
+
+protected:
+	void keyPressEvent(QKeyEvent *event){
+	  //See if this is one of the special hotkeys and act appropriately
+	  // NOTE: Some of this is duplicated with the QShortcut definitions (for non-presentation mode)
+	  //  This routine does not always work for the main window viewer due to differing widget focus policies
+	  if(presentationLabel!=0 && presentationLabel->isVisible()){
+	    //qDebug() << "Got Key Press:";
+	    if( event->key()==Qt::Key_Escape || event->key()==Qt::Key_Backspace){
+	      //qDebug() << " - Escape/Backspace";
+	      endPresentation();
+	    }else if(event->key()==Qt::Key_Right || event->key()==Qt::Key_Down || event->key()==Qt::Key_Space){
+	      //qDebug() << " - Right/Down/Spacebar";
+	      ShowPage( CurrentPage+1 );
+	    }else if(event->key()==Qt::Key_Left || event->key()==Qt::Key_Up){
+	      //qDebug() << " - Left/Up";
+	      ShowPage( CurrentPage-1 );
+	    }else if(event->key()==Qt::Key_Home){
+	      //qDebug() << " - Home";
+	      ShowPage(0); //go to the first page
+	    }else if(event->key()==Qt::Key_End){
+	      //qDebug() << " - End";
+	      ShowPage( numPages-1 ); //go to the last page
+	    }else if(event->key()==Qt::Key_F11){
+	      //qDebug() << " - F11";
+	      endPresentation();
+            }else{
+	      QMainWindow::keyPressEvent(event);
+	    }
+	  }else{
+	    QMainWindow::keyPressEvent(event);
+	  }
+	}
 };
 #endif