Add a new desktop application: lumina-pdf

This is a basic PDF file viewer application, with printing capabilities.
NOTE: This is not quite done yet - the basic PDF viewer works if an input file is supplied, but I have not finished adding all the normal window operations around it yet (menu bar with close, open file options, progress bar for loading status rather than using a message box, etc...)

5 files changed, 275 insertions, 0 deletions

diff --git a/src-qt5/desktop-utils/lumina-pdf/lumina-pdf.desktop b/src-qt5/desktop-utils/lumina-pdf/lumina-pdf.desktop
new file mode 100644
index 00000000..c9632c9f
--- /dev/null
+++ b/src-qt5/desktop-utils/lumina-pdf/lumina-pdf.desktop
@@ -0,0 +1,10 @@
+[Desktop Entry]
+Exec=lumina-pdf %f
+Icon=application-pdf
+Terminal=false
+Type=Application
+StartupNotify=true
+Categories=Utility;
+MimeType=application/pdf;
+Name=Lumina PDF Viewer
+Comment=View PDF Files
diff --git a/src-qt5/desktop-utils/lumina-pdf/lumina-pdf.pro b/src-qt5/desktop-utils/lumina-pdf/lumina-pdf.pro
new file mode 100644
index 00000000..31815629
--- /dev/null
+++ b/src-qt5/desktop-utils/lumina-pdf/lumina-pdf.pro
@@ -0,0 +1,99 @@
+include("$${PWD}/../../OS-detect.pri")
+
+QT       += core gui
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets concurrent
+
+
+TARGET = lumina-pdf
+TEMPLATE = app
+
+QT += printsupport
+
+target.path = $${L_BINDIR}
+
+#include all the special classes from the Lumina tree
+include(../../core/libLumina/LUtils.pri) #includes LUtils
+include(../../core/libLumina/LuminaXDG.pri)
+
+SOURCES += main.cpp\
+        mainUI.cpp
+
+HEADERS  += mainUI.h
+
+LIBS += -lpoppler-qt5
+INCLUDEPATH+= $${L_INCLUDEDIR}/poppler/qt5
+
+TRANSLATIONS =  i18n/l-pdf_af.ts \
+                i18n/l-pdf_ar.ts \
+                i18n/l-pdf_az.ts \
+                i18n/l-pdf_bg.ts \
+                i18n/l-pdf_bn.ts \
+                i18n/l-pdf_bs.ts \
+                i18n/l-pdf_ca.ts \
+                i18n/l-pdf_cs.ts \
+                i18n/l-pdf_cy.ts \
+                i18n/l-pdf_da.ts \
+                i18n/l-pdf_de.ts \
+                i18n/l-pdf_el.ts \
+                i18n/l-pdf_en_GB.ts \
+                i18n/l-pdf_en_ZA.ts \
+                i18n/l-pdf_es.ts \
+                i18n/l-pdf_et.ts \
+                i18n/l-pdf_eu.ts \
+                i18n/l-pdf_fa.ts \
+                i18n/l-pdf_fi.ts \
+                i18n/l-pdf_fr.ts \
+                i18n/l-pdf_fr_CA.ts \
+                i18n/l-pdf_gl.ts \
+                i18n/l-pdf_he.ts \
+                i18n/l-pdf_hi.ts \
+                i18n/l-pdf_hr.ts \
+                i18n/l-pdf_hu.ts \
+                i18n/l-pdf_id.ts \
+                i18n/l-pdf_is.ts \
+                i18n/l-pdf_it.ts \
+                i18n/l-pdf_ja.ts \
+                i18n/l-pdf_ka.ts \
+                i18n/l-pdf_ko.ts \
+                i18n/l-pdf_lt.ts \
+                i18n/l-pdf_lv.ts \
+                i18n/l-pdf_mk.ts \
+                i18n/l-pdf_mn.ts \
+                i18n/l-pdf_ms.ts \
+                i18n/l-pdf_mt.ts \
+                i18n/l-pdf_nb.ts \
+                i18n/l-pdf_nl.ts \
+                i18n/l-pdf_pa.ts \
+                i18n/l-pdf_pl.ts \
+                i18n/l-pdf_pt.ts \
+                i18n/l-pdf_pt_BR.ts \
+                i18n/l-pdf_ro.ts \
+                i18n/l-pdf_ru.ts \
+                i18n/l-pdf_sk.ts \
+                i18n/l-pdf_sl.ts \
+                i18n/l-pdf_sr.ts \
+                i18n/l-pdf_sv.ts \
+                i18n/l-pdf_sw.ts \
+                i18n/l-pdf_ta.ts \
+                i18n/l-pdf_tg.ts \
+                i18n/l-pdf_th.ts \
+                i18n/l-pdf_tr.ts \
+                i18n/l-pdf_uk.ts \
+                i18n/l-pdf_uz.ts \
+                i18n/l-pdf_vi.ts \
+                i18n/l-pdf_zh_CN.ts \
+                i18n/l-pdf_zh_HK.ts \
+                i18n/l-pdf_zh_TW.ts \
+                i18n/l-pdf_zu.ts 
+
+dotrans.path=$${L_SHAREDIR}/lumina-desktop/i18n/
+dotrans.extra=cd i18n && $${LRELEASE} -nounfinished *.ts && cp *.qm $(INSTALL_ROOT)$${L_SHAREDIR}/lumina-desktop/i18n/
+
+desktop.files=lumina-pdf.desktop
+desktop.path=$${L_SHAREDIR}/applications/
+
+INSTALLS += target desktop
+
+WITH_I18N{
+  INSTALLS += dotrans
+}
diff --git a/src-qt5/desktop-utils/lumina-pdf/main.cpp b/src-qt5/desktop-utils/lumina-pdf/main.cpp
new file mode 100644
index 00000000..ad0797d7
--- /dev/null
+++ b/src-qt5/desktop-utils/lumina-pdf/main.cpp
@@ -0,0 +1,31 @@
+#include <QTranslator>
+#include <QApplication>
+#include <QDebug>
+#include <QFile>
+
+#include "mainUI.h"
+#include <LUtils.h>
+//#include <LuminaThemes.h>
+
+int main(int argc, char ** argv)
+{
+  //LTHEME::LoadCustomEnvSettings();
+  QApplication a(argc, argv);
+  LUtils::LoadTranslation(&a, "l-pdf");
+  //LuminaThemeEngine theme(&a);
+
+
+  //Read the input variables
+  QString path = "";
+  for(int i=1; i<argc; i++){
+    path = LUtils::PathToAbsolute( argv[i] );
+    if(QFile::exists(path)){ break; } //already found a valid file 
+  }
+if(path.isEmpty()){ return 1; }
+  MainUI w;
+      //QObject::connect(&theme, SIGNAL(updateIcons()), &w, SLOT(UpdateIcons()) );
+  w.loadFile(path);
+  w.show();
+  int retCode = a.exec();
+  return retCode;
+}
diff --git a/src-qt5/desktop-utils/lumina-pdf/mainUI.cpp b/src-qt5/desktop-utils/lumina-pdf/mainUI.cpp
new file mode 100644
index 00000000..22e41dbb
--- /dev/null
+++ b/src-qt5/desktop-utils/lumina-pdf/mainUI.cpp
@@ -0,0 +1,102 @@
+//===========================================
+//  Lumina Desktop source code
+//  Copyright (c) 2017, Ken Moore
+//  Available under the 3-clause BSD license
+//  See the LICENSE file for full details
+//===========================================
+#include "mainUI.h"
+#include <QPainter>
+#include <QImage>
+#include <QSize>
+#include <QMessageBox>
+#include <QDebug>
+#include <QApplication>
+
+#include <LuminaXDG.h>
+
+MainUI::MainUI() : QPrintPreviewDialog(0, Qt::Window){
+
+  //this->addStatusBar();
+  
+  connect(this, SIGNAL(paintRequested(QPrinter*)), this, SLOT(paintOnWidget(QPrinter*)) );
+  DOC = 0;
+}
+
+MainUI::~MainUI(){
+
+}
+
+void MainUI::loadFile(QString path){
+  if(DOC!=0){
+    //Clear out the old document first
+    delete DOC;
+  }
+  if(!QFile::exists(path) || path.isEmpty() ){QApplication::exit(1); }
+  DOC = Poppler::Document::load(path);
+  if(DOC!=0){ this->setWindowTitle(DOC->title()); }
+  if(this->windowTitle().isEmpty()){ this->setWindowTitle(path.section("/",-1)); }
+  this->setWindowIcon( LXDG::findIcon("application-pdf","unknown"));
+  //Setup the Document
+  Poppler::Page *PAGE = DOC->page(0);
+  if(PAGE!=0){
+    this->printer()->setPageSize( QPageSize(PAGE->pageSize(), QPageSize::Point) ); 
+    switch(PAGE->orientation()){
+	case Poppler::Page::Landscape:
+	  this->printer()->setOrientation(QPrinter::Landscape); break;
+	default:
+	  this->printer()->setOrientation(QPrinter::Portrait);
+    }
+    delete PAGE;
+  }
+
+}
+
+void MainUI::done(int val){
+  //This is automatically called with value=1 when the "print()" function finishes
+  //Otherwise close down the application
+  if(val==0){ QApplication::exit(0); }
+}
+
+void MainUI::paintOnWidget(QPrinter *PRINTER){
+  if(DOC==0){ return; }
+  int pages = DOC->numPages();
+  int firstpage = 0;
+  //qDebug() << "Start Rendering PDF:" << PRINTER->fromPage() << PRINTER->toPage();
+  if(PRINTER->fromPage() != PRINTER->toPage() || PRINTER->fromPage()!=0){
+    firstpage = PRINTER->fromPage() - 1;
+    pages = PRINTER->toPage();
+  }
+  qDebug() << " - Generating Pages:" << firstpage << pages;
+  //Now start painting all the pages onto the widget
+  QRectF size = PRINTER->pageRect(QPrinter::DevicePixel);
+  QSize DPI(PRINTER->resolution(),PRINTER->resolution());
+  QPainter painter(PRINTER);
+  Poppler::Page *PAGE = 0;
+  QMessageBox wait(QMessageBox::NoIcon, tr("Opening PDF..."), QString(tr("Preparing Document (%1 pages)")).arg(QString::number(pages)), QMessageBox::Abort, this);
+    wait.setInformativeText(" "); //Make sure the window is the right size before showing it
+    wait.setStandardButtons(QMessageBox::Abort); //make sure that no buttons are used
+    wait.show();
+    for(int i=firstpage; i<pages && wait.isVisible(); i++){
+      wait.setInformativeText( QString(tr("Loading Page: %1")).arg(i+1) );
+      //qDebug() << "Loading Page:" << i;
+      QApplication::processEvents();
+      //Now paint this page on the printer
+      if(PAGE!=0){ delete PAGE; PRINTER->newPage(); } //this is the start of the next page (not needed for first)
+      PAGE = DOC->page(i);
+      if(PAGE!=0){
+        painter.drawImage(0,0,PAGE->renderToImage(DPI.width(), DPI.height()).scaled(size.width(), size.height(), Qt::KeepAspectRatio, Qt::SmoothTransformation) );
+      }else{
+        painter.drawImage(0,0,QImage()); 
+      }
+      QApplication::processEvents();
+    }
+  if(PAGE!=0){ delete PAGE; }
+  wait.close();
+}
+
+void MainUI::OpenNewFile(){
+  //Prompt for a file
+
+  //Now Open it
+  
+}
diff --git a/src-qt5/desktop-utils/lumina-pdf/mainUI.h b/src-qt5/desktop-utils/lumina-pdf/mainUI.h
new file mode 100644
index 00000000..34bbc801
--- /dev/null
+++ b/src-qt5/desktop-utils/lumina-pdf/mainUI.h
@@ -0,0 +1,33 @@
+//===========================================
+//  Lumina Desktop source code
+//  Copyright (c) 2017, Ken Moore
+//  Available under the 3-clause BSD license
+//  See the LICENSE file for full details
+//===========================================
+#ifndef _LUMINA_PDF_VIEWER_MAIN_WINDOW_H
+#define _LUMINA_PDF_VIEWER_MAIN_WINDOW_H
+
+#include <QPrintPreviewDialog>
+#include <QPrinter>
+
+#include <poppler-qt5.h>
+
+class MainUI : public QPrintPreviewDialog{
+	Q_OBJECT
+public:
+	MainUI();
+	~MainUI();
+
+	void loadFile(QString path);
+
+	virtual void done(int);
+
+private:
+	Poppler::Document *DOC;
+
+private slots:
+	void paintOnWidget(QPrinter *PRINTER);
+	void OpenNewFile();
+
+};
+#endif