Rename file imageswitch.h & imageswitch.cpp to ImageSwitch.h & ImageSwitch.cpp, and refactor.

src/components/ImageSwitch.h

@@ -0,0 +1,28 @@
+#ifndef IMAGESWITCH_H
+#define IMAGESWITCH_H
+
+#include <QWidget>
+
+class ImageSwitch : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit ImageSwitch(QWidget *parent = nullptr);
+    ~ImageSwitch() override = default;
+protected:
+    void mousePressEvent(QMouseEvent *) override;
+    void paintEvent(QPaintEvent *event) override;
+private:
+    bool mIsChecked;
+    QString mImgOffFile;
+    QString mImgOnFile;
+
+public:
+    bool getChecked() const;
+signals:
+    void clicked();
+public Q_SLOTS:
+    void setChecked(bool isChecked);
+};
+
+#endif // IMAGESWITCH_H