[gui] Rework brightness slider

assets/resources.qrc

@@ -17,5 +17,6 @@
         <file>camera-hot.png</file>
         <file>day-hot.png</file>
         <file>night-hot.png</file>
+        <file>slider.png</file>
     </qresource>
 </RCC>

src/autoapp/UI/MainWindow.cpp

@@ -40,7 +40,11 @@ MainWindow::MainWindow(configuration::IConfiguration::Pointer configuration, QWi
         QPushButton:hover { background: url(:/circle.png); } \
         QPushButton:focus { background: url(:/circle.png); } \
         QPushButton:pressed { background: url(:/circle-pressed.png); } \
+        QSlider:horizontal { background: url(:/slider.png); border: 1px solid #ffffff; border-radius: 2px; min-height: 32px;} \
+	QSlider::groove:horizontal { background: #6d6d6d; height: 32px;} \
+	QSlider::handle:horizontal { background: white; height: 52px; width: 52px; margin: 0 0;} \
     ");
+
     QFileInfo wallpaperDayFile("wallpaper.png");
     bool wallpaperDayFileExists = wallpaperDayFile.exists();
 

src/autoapp/UI/mainwindow.ui

@@ -210,13 +210,16 @@
      </rect>
     </property>
     <property name="minimum">
-     <number>1</number>
+     <number>30</number>
     </property>
     <property name="maximum">
      <number>255</number>
     </property>
     <property name="singleStep">
-     <number>5</number>
+     <number>25</number>
+    </property>
+    <property name="tickInterval">
+     <number>25</number>
     </property>
     <property name="orientation">
      <enum>Qt::Horizontal</enum>