reader.cpp

#include "reader.h"
#include "ui_reader.h"
#include "functions.h"
#include <QProcess>
#include <QFileDialog>
#include <QDir>
#include <QTimer>
#include <QTime>
#include <QMessageBox>
#include <QFont>
#include <QIcon>
#include <QSize>
#include <QDesktopWidget>
#include <QScreen>
#include <QFontDatabase>
#include <QDirIterator>
#include <QTextCursor>
#include <QDebug>

using namespace std;

reader::reader(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::reader)
{
    // Variables
    global::battery::showLowBatteryDialog = true;
    global::battery::showCriticalBatteryAlert = true;
    if(global::reader::bookIsEpub == true) {
        is_epub = true;
    }
    wordwidgetLock = false;

    ui->setupUi(this);
    ui->previousBtn->setProperty("type", "borderless");
    ui->nextBtn->setProperty("type", "borderless");
    ui->hideOptionsBtn->setProperty("type", "borderless");
    ui->optionsBtn->setProperty("type", "borderless");
    ui->brightnessDecBtn->setProperty("type", "borderless");
    ui->brightnessIncBtn->setProperty("type", "borderless");
    ui->homeBtn->setProperty("type", "borderless");
    ui->aboutBtn->setProperty("type", "borderless");
    ui->alignLeftBtn->setProperty("type", "borderless");
    ui->alignRightBtn->setProperty("type", "borderless");
    ui->alignCenterBtn->setProperty("type", "borderless");
    ui->alignLeftBtn->setProperty("type", "borderless");
    ui->alignJustifyBtn->setProperty("type", "borderless");
    ui->infoCloseBtn->setProperty("type", "borderless");
    ui->saveWordBtn->setProperty("type", "borderless");
    ui->previousDefinitionBtn->setProperty("type", "borderless");
    ui->nextDefinitionBtn->setProperty("type", "borderless");
    ui->nightModeBtn->setProperty("type", "borderless");

    // Icons
    ui->alignLeftBtn->setText("");
    ui->alignLeftBtn->setIcon(QIcon(":/resources/align-left.png"));
    ui->alignRightBtn->setText("");
    ui->alignRightBtn->setIcon(QIcon(":/resources/align-right.png"));
    ui->alignCenterBtn->setText("");
    ui->alignCenterBtn->setIcon(QIcon(":/resources/align-center.png"));
    ui->alignJustifyBtn->setText("");
    ui->alignJustifyBtn->setIcon(QIcon(":/resources/align-justify.png"));
    ui->infoCloseBtn->setText("");
    ui->infoCloseBtn->setIcon(QIcon(":/resources/close.png"));
    ui->saveWordBtn->setText("");
    ui->saveWordBtn->setIcon(QIcon(":/resources/star.png"));
    ui->previousDefinitionBtn->setText("");
    ui->previousDefinitionBtn->setIcon(QIcon(":/resources/chevron-left.png"));
    ui->nextDefinitionBtn->setText("");
    ui->nextDefinitionBtn->setIcon(QIcon(":/resources/chevron-right.png"));
    ui->brightnessDecBtn->setText("");
    ui->brightnessDecBtn->setIcon(QIcon(":/resources/minus.png"));
    ui->brightnessIncBtn->setText("");
    ui->brightnessIncBtn->setIcon(QIcon(":/resources/plus.png"));
    ui->homeBtn->setText("");
    ui->homeBtn->setIcon(QIcon(":/resources/home.png"));
    ui->aboutBtn->setText("");
    ui->aboutBtn->setIcon(QIcon(":/resources/info.png"));

    // Style misc.
    ui->bookInfoLabel->setStyleSheet("font-style: italic");

    // Making text selectable
    ui->text->setTextInteractionFlags(Qt::TextSelectableByMouse);

    // Font misc.
    int id = QFontDatabase::addApplicationFont(":/resources/fonts/CrimsonPro-Italic.ttf");
    QString family = QFontDatabase::applicationFontFamilies(id).at(0);
    QFont crimson(family);

    // Custom settings
    // Font
    string_checkconfig(".config/04-book/font");
    if(checkconfig_str_val == "") {
        ui->fontChooser->setCurrentText("Source Serif Pro");
        ui->text->setFont(QFont("Source Serif Pro"));
    }
    else {
        if(checkconfig_str_val == "Crimson Pro") {
            int id = QFontDatabase::addApplicationFont(":/resources/fonts/CrimsonPro-Regular.ttf");
            QString family = QFontDatabase::applicationFontFamilies(id).at(0);
            QFont crimson(family);
            ui->text->setFont(crimson);
            ui->fontChooser->setCurrentText(checkconfig_str_val);
        }
        else {
            QFont config_font(checkconfig_str_val);
            ui->text->setFont(config_font);
            ui->fontChooser->setCurrentText(checkconfig_str_val);
        }
    }
    // Night mode
    if(checkconfig(".config/10-dark_mode/config") == true) {
        string_writeconfig("/tmp/invertScreen", "y");
        ui->nightModeBtn->setText("");
        ui->nightModeBtn->setIcon(QIcon(":/resources/nightmode-full.png"));
        isNightModeActive = true;
    }
    else {
        string_writeconfig("/tmp/invertScreen", "n");
        ui->nightModeBtn->setText("");
        ui->nightModeBtn->setIcon(QIcon(":/resources/nightmode-empty.png"));
        isNightModeActive = false;
    }

    // Stylesheet + misc.
    QFile stylesheetFile(":/resources/eink.qss");
    stylesheetFile.open(QFile::ReadOnly);
    this->setStyleSheet(stylesheetFile.readAll());
    stylesheetFile.close();

    ui->sizeValueLabel->setStyleSheet("font-size: 9pt");
    ui->homeBtn->setStyleSheet("font-size: 9pt; padding: 5px");
    ui->aboutBtn->setStyleSheet("font-size: 9pt; padding: 5px");
    ui->fontChooser->setStyleSheet("font-size: 9pt");

    // Hiding the menubar + definition widget + brightness widget
    ui->hideOptionsBtn->hide();
    ui->menuWidget->setVisible(false);
    ui->brightnessWidget->setVisible(false);
    ui->menuBarWidget->setVisible(false);
    ui->wordWidget->setVisible(false);
    if(checkconfig(".config/11-menubar/sticky") == true) {
        ui->menuWidget->setVisible(true);
        ui->statusBarWidget->setVisible(true);
    }
    else {
        ui->menuWidget->setVisible(false);
        ui->statusBarWidget->setVisible(false);
    }

    // Topbar widget / book info
    ui->topbarStackedWidget->setVisible(true);
    showTopbarWidget = true;
    ui->bookInfoLabel->setFont(crimson);

    // Getting brightness level
    int brightness_value = get_brightness();
    ui->brightnessStatus->setValue(brightness_value);

    // Defining pixmaps
    // Getting the screen's size
    float sW = QGuiApplication::screens()[0]->size().width();
    float sH = QGuiApplication::screens()[0]->size().height();
    // Defining what the icons' size will be
    if(checkconfig("/opt/inkbox_genuine") == true) {
        string_checkconfig_ro("/opt/inkbox_device");
        if(checkconfig_str_val == "n705\n" or checkconfig_str_val == "n905\n") {
            float stdIconWidth = sW / 16;
            float stdIconHeight = sW / 16;
            QPixmap chargingPixmap(":/resources/battery_charging.png");
            scaledChargingPixmap = chargingPixmap.scaled(stdIconWidth, stdIconHeight, Qt::KeepAspectRatio);
            QPixmap fullPixmap(":/resources/battery_full.png");
            scaledFullPixmap = fullPixmap.scaled(stdIconWidth, stdIconHeight, Qt::KeepAspectRatio);
            QPixmap halfPixmap(":/resources/battery_half.png");
            scaledHalfPixmap = halfPixmap.scaled(stdIconWidth, stdIconHeight, Qt::KeepAspectRatio);
            QPixmap emptyPixmap(":/resources/battery_empty.png");
            scaledEmptyPixmap = emptyPixmap.scaled(stdIconWidth, stdIconHeight, Qt::KeepAspectRatio);
        }
        else {
            float stdIconWidth = sW / 19;
            float stdIconHeight = sH / 19;
            QPixmap chargingPixmap(":/resources/battery_charging.png");
            scaledChargingPixmap = chargingPixmap.scaled(stdIconWidth, stdIconHeight, Qt::KeepAspectRatio);
            QPixmap fullPixmap(":/resources/battery_full.png");
            scaledFullPixmap = fullPixmap.scaled(stdIconWidth, stdIconHeight, Qt::KeepAspectRatio);
            QPixmap halfPixmap(":/resources/battery_half.png");
            scaledHalfPixmap = halfPixmap.scaled(stdIconWidth, stdIconHeight, Qt::KeepAspectRatio);
            QPixmap emptyPixmap(":/resources/battery_empty.png");
            scaledEmptyPixmap = emptyPixmap.scaled(stdIconWidth, stdIconHeight, Qt::KeepAspectRatio);
        }
    }
    else {
        float stdIconWidth = sW / 19;
        float stdIconHeight = sH / 19;
        QPixmap chargingPixmap(":/resources/battery_charging.png");
        scaledChargingPixmap = chargingPixmap.scaled(stdIconWidth, stdIconHeight, Qt::KeepAspectRatio);
        QPixmap fullPixmap(":/resources/battery_full.png");
        scaledFullPixmap = fullPixmap.scaled(stdIconWidth, stdIconHeight, Qt::KeepAspectRatio);
        QPixmap halfPixmap(":/resources/battery_half.png");