Dirty commit that's not even working

functions.h

@@ -21,6 +21,7 @@ namespace global {
         inline int bookNumber;
         inline bool skipOpenDialog;
         inline bool startBatteryWatchdog;
+        inline bool bookIsEpub;
     }
     namespace kobox {
         inline bool showKoboxSplash;

main.cpp

@@ -64,6 +64,13 @@ int main(int argc, char *argv[])
         global::reader::startBatteryWatchdog = true;
         global::reader::skipOpenDialog = true;
 
+        if(checkconfig("/inkbox/bookIsEpub") == true) {
+            global::reader::bookIsEpub = true;
+        }
+        else {
+            global::reader::bookIsEpub = false;
+        }
+
         string_writeconfig("/inkbox/skip_opendialog", "true");
         QApplication a(argc, argv);
         reader w;

reader.cpp

@@ -25,6 +25,9 @@ reader::reader(QWidget *parent) :
     // Variables
     global::battery::showLowBatteryDialog = true;
     global::battery::showCriticalBatteryAlert = true;
+    if(global::reader::bookIsEpub == true) {
+        is_epub = true;
+    }
 
     ui->setupUi(this);
     ui->previousBtn->setProperty("type", "borderless");
@@ -402,7 +405,12 @@ reader::reader(QWidget *parent) :
     ui->text->setStyleSheet(font_size);
 
     // Wheeee!
+    if(is_epub != true) {
         ui->text->setText(ittext);
+    }
+    else {
+        ui->text->setText(epubPageContent);
+    }
 
     // Clean up
     string_writeconfig("/inkbox/remount", "true");
@@ -515,30 +523,35 @@ int reader::setup_book(QString book, int i, bool run_parser) {
         mount_proc->waitForFinished();
     }
 
-    if(booktostr_ran != true) {
+    if(filematch_ran != true) {
         if(epub_file_match(book) == true) {
-            // Parsing ePUBs with epub2txt, thanks to GitHub:kevinboone
+            QFile::copy(book, "/inkbox/book/book.epub");
+            QFile::copy(book, "/mutool_rootfs/run/book.epub");
+
+            // Parsing ePUBs with `mutool'
             QString epubProg ("sh");
             QStringList epubArgs;
-            epubArgs << "/mnt/onboard/.adds/inkbox/epub.sh" << book;
+            convertMuPdfVars();
+            epubArgs << "/mnt/onboard/.adds/inkbox/epub.sh" << mupdf::fontSize_qstr << mupdf::width_qstr << mupdf::height_qstr << mupdf::epubPageNumber_qstr;
             QProcess *epubProc = new QProcess();
             epubProc->start(epubProg, epubArgs);
             epubProc->waitForFinished();
 
+            filematch_ran = true;
             is_epub = true;
-            booktostr_ran = true;
          }
          else {
             // This is likely not an ePUB.
             // Copying book specified in the function call
             QFile::copy(book, "/inkbox/book/book.txt");
 
+            filematch_ran = true;
             is_epub = false;
-            booktostr_ran = true;
         }
     }
 
-    // Checking if the user has defined an option for the number of words per page; if not, then setting the default.
+    // Checking whether the user has defined an option for the number of words per page; if not, then setting the default.
+    // NOTE: This is only for plain text files.
     QDir::setCurrent("/mnt/onboard/.adds/inkbox");
     string_checkconfig(".config/07-words_number/config");
     if(checkconfig_str_val == "") {
@@ -547,17 +560,18 @@ int reader::setup_book(QString book, int i, bool run_parser) {
     }
 
     // Parsing file
-    if(parser_ran != true) {
+    if(filematch_ran != true) {
         if(is_epub == true) {
-            QString parse_prog ("python3");
+            QString epubProg ("sh");
-            QStringList parse_args;
+            QStringList epubArgs;
-            parse_args << "split.py" << checkconfig_str_val;
+            convertMuPdfVars();
-            QProcess *parse_proc = new QProcess();
+            epubArgs << "/mnt/onboard/.adds/inkbox/epub.sh" << mupdf::fontSize_qstr << mupdf::width_qstr << mupdf::height_qstr << mupdf::epubPageNumber_qstr;
-            parse_proc->start(parse_prog, parse_args);
+            QProcess *epubProc = new QProcess();
-            parse_proc->waitForFinished();
+            epubProc->start(epubProg, epubArgs);
-            parser_ran = true;
+            epubProc->waitForFinished();
         }
         else {
+            if(parser_ran != true) {
                 QString parse_prog ("python3");
                 QStringList parse_args;
                 parse_args << "split-txt.py" << checkconfig_str_val;
@@ -566,12 +580,17 @@ int reader::setup_book(QString book, int i, bool run_parser) {
                 parse_proc->waitForFinished();
                 parser_ran = true;
             }
+            else {
+                ;
+            }
+        }
     }
 
     // Changing current working directory
     QDir::setCurrent("/inkbox/book");
 
-    // Reading file
+    // Reading files
+    if(is_epub != true) {
         if(run_parser == true) {
             QDirIterator it("/inkbox/book/split");
             while (it.hasNext()) {
@@ -587,6 +606,15 @@ int reader::setup_book(QString book, int i, bool run_parser) {
             ittext = content[i];
             QDir::setCurrent("/mnt/onboard/.adds/inkbox");
         }
+    }
+    else {
+        QFile epubPage("/inkbox/book/page");
+        epubPage.open(QIODevice::ReadOnly);
+        QTextStream in(&epubPage);
+        epubPageContent = in.readAll();
+        epubPage.close();
+        QDir::setCurrent("/mnt/onboard/.adds/inkbox");
+    }
     return 0;
 }
 
@@ -665,6 +693,7 @@ void reader::save_word(string word, bool remove) {
 
 void reader::on_nextBtn_clicked()
 {
+    if(is_epub != true) {
         if(split_total - 1 == 1 or split_total - 1 == 0) {
             QMessageBox::critical(this, tr("Invalid argument"), tr("You've reached the end of the document."));
         }
@@ -677,24 +706,22 @@ void reader::on_nextBtn_clicked()
             ui->text->setText(ittext);
 
             pagesTurned = pagesTurned + 1;
-        if(neverRefresh == true) {
-            // Do nothing; "Never refresh" was set
-            ;
-        }
-        else {
-            if(pagesTurned >= pageRefreshSetting) {
-                // Refreshing the screen
-                this->repaint();
-                // Reset count
-                pagesTurned = 0;
-            }
-        }
             writeconfig_pagenumber();
         }
     }
+    else {
+        mupdf::epubPageNumber = mupdf::epubPageNumber + 1;
+        setup_book(book_file, mupdf::epubPageNumber, false);
+
+        pagesTurned = pagesTurned + 1;
+        writeconfig_pagenumber();
+    }
+    refreshScreen();
+}
 
 void reader::on_previousBtn_clicked()
 {
+    if(is_epub != true) {
     // Making sure we won't encounter a "List index out of range" error ;)
         if(split_total >= split_files_number - 1) {
             QMessageBox::critical(this, tr("Invalid argument"), tr("No previous page."));
@@ -704,10 +731,30 @@ void reader::on_previousBtn_clicked()
             split_total = split_total + 1;
             setup_book(book_file, split_total, false);
             ui->text->setText("");
+            if(is_epub != true) {
                 ui->text->setText(ittext);
+            }
+            else {
+                ui->text->setText(epubPageContent);
+            }
 
-        // We always increment pagesTurned regardless if we press the Previous or Next button
+            // We always increment pagesTurned regardless whether we press the Previous or Next button
             pagesTurned = pagesTurned + 1;
+            refreshScreen();
+            writeconfig_pagenumber();
+        }
+    }
+    else {
+        mupdf::epubPageNumber = mupdf::epubPageNumber - 1;
+        setup_book(book_file, mupdf::epubPageNumber, false);
+
+        // We always increment pagesTurned regardless whether we press the Previous or Next button
+        pagesTurned = pagesTurned + 1;
+        writeconfig_pagenumber();
+    }
+}
+
+void reader::refreshScreen() {
     if(neverRefresh == true) {
         // Do nothing; "Never refresh" was set
         ;
@@ -720,8 +767,6 @@ void reader::on_previousBtn_clicked()
             pagesTurned = 0;
         }
     }
-        writeconfig_pagenumber();
-    }
 }
 
 void reader::on_optionsBtn_clicked()
@@ -1069,9 +1114,15 @@ void reader::on_sizeSlider_valueChanged(int value)
 
 void reader::writeconfig_pagenumber() {
     // Saving the page number in tmpfs
-    string split_total_str = to_string(split_total);
+    if(is_epub != true) {
+        std::string split_total_str = std::to_string(split_total);
         string_writeconfig("/tmp/inkboxPageNumber", split_total_str);
     }
+    else {
+        std::string epubPageNumber_str = std::to_string(mupdf::epubPageNumber);
+        string_writeconfig("/tmp/inkboxPageNumber", epubPageNumber_str);
+    }
+}
 
 void reader::quit_restart() {
     // Restarting InkBox
@@ -1099,3 +1150,9 @@ void reader::openCriticalBatteryAlertWindow() {
     alertWindow->setGeometry(QRect(QPoint(0,0), screen()->geometry ().size()));
     alertWindow->show();
 }
+void reader::convertMuPdfVars() {
+    mupdf::fontSize_qstr = QString::number(mupdf::fontSize);
+    mupdf::width_qstr = QString::number(mupdf::width);
+    mupdf::height_qstr = QString::number(mupdf::height);
+    mupdf::epubPageNumber_qstr = QString::number(mupdf::epubPageNumber);
+}

reader.h

@@ -9,6 +9,18 @@
 
 using namespace std;
 
+// ePUB scaling
+namespace mupdf {
+    inline int fontSize;
+    inline int width;
+    inline int height;
+    inline int epubPageNumber;
+    inline QString fontSize_qstr;
+    inline QString width_qstr;
+    inline QString height_qstr;
+    inline QString epubPageNumber_qstr;
+}
+
 namespace Ui {
 class reader;
 }
@@ -37,6 +49,7 @@ public:
     bool is_epub = false;
     bool parser_ran = false;
     bool booktostr_ran = false;
+    bool filematch_ran = false;
     bool neverRefresh = false;
     bool wakeFromSleep = false;
     bool remount = true;
@@ -58,6 +71,7 @@ public:
     QPixmap scaledFullPixmap;
     QPixmap scaledEmptyPixmap;
     QList<QString> content;
+    QString epubPageContent;
     int setup_book(QString book, int i, bool run_parser);
     void checkwords();
     bool epub_file_match(QString file);
@@ -69,6 +83,8 @@ public:
     void wordwidget_hide();
     void openLowBatteryDialog();
     void openCriticalBatteryAlertWindow();
+    void convertMuPdfVars();
+    void refreshScreen();
 
 private slots:
     void on_nextBtn_clicked();