Fine-tune Kobo Mini ePUB rendering, new nightmode switch

eink.qrc

@@ -44,5 +44,7 @@
         <file>resources/kobox-icon.png</file>
         <file>resources/X11.png</file>
         <file>resources/info.png</file>
+        <file>resources/nightmode-empty.png</file>
+        <file>resources/nightmode-full.png</file>
     </qresource>
 </RCC>

functions.h

@@ -323,8 +323,8 @@ namespace {
     void defineDefaultPageSize() {
         string_checkconfig_ro("/opt/inkbox_device");
         if(checkconfig_str_val == "n705\n") {
-            defaultEpubPageWidth = 425;
-            defaultEpubPageHeight = 425;
+            defaultEpubPageWidth = 365;
+            defaultEpubPageHeight = 365;
         }
         if(checkconfig_str_val == "n905\n") {
             defaultEpubPageHeight = 425;

reader.cpp

@@ -49,6 +49,7 @@ reader::reader(QWidget *parent) :
     ui->saveWordBtn->setProperty("type", "borderless");
     ui->previousDefinitionBtn->setProperty("type", "borderless");
     ui->nextDefinitionBtn->setProperty("type", "borderless");
+    ui->nightModeBtn->setProperty("type", "borderless");
 
     // Icons
     ui->alignLeftBtn->setText("");
@@ -108,6 +109,19 @@ reader::reader(QWidget *parent) :
             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");
@@ -407,7 +421,16 @@ reader::reader(QWidget *parent) :
         infoLabelContent.append(" ― ");
         infoLabelContent.append(bookTitle);
         int infoLabelLength = infoLabelContent.length();
-        if(infoLabelLength <= 50) {
+        int infoLabelDefinedLength;
+        string_checkconfig_ro("/opt/inkbox_device");
+        if(checkconfig_str_val == "n705\n") {
+            infoLabelDefinedLength = 35;
+        }
+        if(checkconfig_str_val == "n905\n") {
+            infoLabelDefinedLength = 50;
+        }
+
+        if(infoLabelLength <= infoLabelDefinedLength) {
             ui->bookInfoLabel->setWordWrap(false);
         }
         else {
@@ -1312,3 +1335,21 @@ void reader::on_text_selectionChanged() {
         }
     }
 }
+
+void reader::on_nightModeBtn_clicked()
+{
+    if(isNightModeActive == true) {
+        // Disabling night/dark mode
+        string_writeconfig("/tmp/invertScreen", "n");
+        string_writeconfig(".config/10-dark_mode/config", "false");
+        ui->nightModeBtn->setIcon(QIcon(":/resources/nightmode-empty.png"));
+        isNightModeActive = false;
+    }
+    else {
+        // Enabling night/dark mode
+        string_writeconfig("/tmp/invertScreen", "y");
+        string_writeconfig(".config/10-dark_mode/config", "true");
+        ui->nightModeBtn->setIcon(QIcon(":/resources/nightmode-full.png"));
+        isNightModeActive = true;
+    }
+}

reader.h

@@ -54,6 +54,7 @@ public:
     bool remount = true;
     bool showTopbarWidget;
     bool wordwidgetLock;
+    bool isNightModeActive;
     QString book_1;
     QString book_2;
     QString book_3;
@@ -113,6 +114,7 @@ private slots:
     void writeconfig_pagenumber();
     void quit_restart();
     void on_text_selectionChanged();
+    void on_nightModeBtn_clicked();
 
 private:
     Ui::reader *ui;

reader.ui

@@ -801,16 +801,13 @@
                    <property name="bottomMargin">
                     <number>0</number>
                    </property>
-                   <item row="0" column="5">
-                    <widget class="QLabel" name="batteryLabel">
-                     <property name="font">
-                      <font>
-                       <weight>75</weight>
-                       <bold>true</bold>
-                      </font>
+                   <item row="0" column="1">
+                    <widget class="Line" name="line_15">
+                     <property name="frameShadow">
+                      <enum>QFrame::Plain</enum>
                      </property>
-                     <property name="text">
-                      <string>Battery</string>
+                     <property name="orientation">
+                      <enum>Qt::Vertical</enum>
                      </property>
                     </widget>
                    </item>
@@ -821,7 +818,14 @@
                      </property>
                     </widget>
                    </item>
-                   <item row="0" column="3">
+                   <item row="0" column="4">
+                    <widget class="QPushButton" name="nightModeBtn">
+                     <property name="text">
+                      <string>Night mode</string>
+                     </property>
+                    </widget>
+                   </item>
+                   <item row="0" column="7">
                     <spacer name="horizontalSpacer_2">
                      <property name="orientation">
                       <enum>Qt::Horizontal</enum>
@@ -834,7 +838,20 @@
                      </property>
                     </spacer>
                    </item>
-                   <item row="0" column="6">
+                   <item row="0" column="9">
+                    <widget class="QLabel" name="batteryLabel">
+                     <property name="font">
+                      <font>
+                       <weight>75</weight>
+                       <bold>true</bold>
+                      </font>
+                     </property>
+                     <property name="text">
+                      <string>Battery</string>
+                     </property>
+                    </widget>
+                   </item>
+                   <item row="0" column="10">
                     <widget class="QLabel" name="batteryIconLabel">
                      <property name="text">
                       <string>Battery Icon</string>
@@ -848,7 +865,7 @@
                      </property>
                     </widget>
                    </item>
-                   <item row="0" column="1">
+                   <item row="0" column="3">
                     <widget class="Line" name="line_7">
                      <property name="frameShadow">
                       <enum>QFrame::Plain</enum>