Quick and easy development of a SwitchButton in Qt

Quick and easy development of a SwitchButton in Qt

#ifndef SWITCHBUTTON_HPP

#define SWITCHBUTTON_HPP

#include <QPushButton>

#include <QMouseEvent>

class SwitchButton : public QPushButton

{

???Q_OBJECT

???Q_DISABLE_COPY(SwitchButton)

???Q_PROPERTY(bool value READ enabled WRITE setEnabled)

???Q_PROPERTY(bool value READ value WRITE setValue NOTIFY valueChanged)

public:

???explicit SwitchButton(QWidget* parent = nullptr): QPushButton(parent)

?????, m_enabled(true)

?????, m_value(false)

???{

???????this->setFlat(true);

???????/**

????????* @note setDefault property is used to get enter key on button.

????????*/

???????this->setDefault(true);

???????changeIcon();

???????resize(parent->width(), parent->height());

???}

???~SwitchButton() override {}

???void setEnabled(bool value)

???{

???????m_enabled = value;

???}

???bool enabled() const

???{

???????return m_enabled;

???}

???void setValue(bool value)

???{

???????if (m_value != value && m_enabled)

???????{

???????????m_value = value;

???????????changeIcon(m_value);

???????????emit valueChanged(value);

???????}

???}

???bool value() const

???{

???????return m_value;

???}

???void resize(int w, int h)

???{

???????if (m_width != w || m_height != h)

???????{

???????????this->setIconSize(QSize(w, h));

???????????m_width = w;

???????????m_height = h;

???????}

???}

private:

???bool m_enabled;

???bool m_value;

???int?m_width???= 0;

???int?m_height??= 0;

signals:

???void valueChanged(bool);

???void mousePress(QMouseEvent *e);

???void mouseRelease(QMouseEvent *e);

???void mouseMove(QMouseEvent *e);

???void mouseDblClick(QMouseEvent *e);

???void keyPress(QKeyEvent *e);

private slots:

???/**

????* @brief changeIcon

????* @param isOn

????*/

???void changeIcon(bool isOn = false)

???{

???????QPixmap pixmap(":/images/Switch_On.png");

???????if (!isOn)

???????????pixmap.load(":/images/Switch_Off.png");

???????QIcon icon(pixmap);

???????this->setIcon(icon);

???}

protected:

???/**

????* @brief mousePressEvent

????* @param e

????*/

???void mousePressEvent(QMouseEvent *e) override

???{

???????if ((e->x() < this->width() / 2 && m_value) || (e->x() > this->width() / 2 && !m_value))

???????????setValue(!m_value);

???????emit mousePress(e);

???}

???/**

????* @brief mouseReleaseEvent

????* @param e

????*/

???void mouseReleaseEvent(QMouseEvent *e) override

???{

???????emit mouseRelease(e);

???}

???/**

????* @brief mouseMoveEvent

????* @param e

????*/

???void mouseMoveEvent(QMouseEvent *e) override

???{

???????if ((e->x() < this->width() / 2 && m_value) || (e->x() > this->width() / 2 && !m_value))

???????????setValue(!m_value);

???????emit mouseMove(e);

???}

???/**

????* @brief mouseDoubleClickEvent

????* @param e

????*/

???void mouseDoubleClickEvent(QMouseEvent *e) override

???{

???????emit mouseDblClick(e);

???}

???/**

????* @brief keyPressEvent

????* @param e

????*/

???void keyPressEvent(QKeyEvent *e) override

???{

???????if (e->key() == Qt::Key_Enter)

???????????setValue(!m_value);

???????emit keyPress(e);

???}

};

#endif // SWITCHBUTTON_HPP

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