#ifndef WINDOW_H
#define WINDOW_H

#include <QSystemTrayIcon>
#include <Qwidget>

class QAction;
class QCheckBox;
class QComboBox;
class QGroupBox;
class QLabel;
class QLineEdit;
class QMenu;
class QPushButton;
class QSpinBox;
class QtextEdit;

class Window : public Qwidget

public:
    Window();

    void setVisible(bool visible);

protected:
    void closeEvent(QCloseEvent *event);

private slots:
    void setIcon(int index);
    void iconActivated(QSystemTrayIcon::ActivationReason reason);
    void showMessage();
    void messageClicked();
الميثودز التالية هى اللى هنستخدمها فى عمل ال iconGroupBox وال MessageGroupBox وال Actions بتاعت ال menu وال trayicon

private:
    void createIconGroupBox();
    void createMessageGroupBox();
    void createActions();
    void createTrayIcon();

  QGroupBox *iconGroupBox;
    QLabel *iconLabel;
    QComboBox *iconComboBox;
    QCheckBox *showIconCheckBox;

    QGroupBox *messageGroupBox;
    QLabel *typeLabel;
    QLabel *durationLabel;
    QLabel *durationWarningLabel;
    QLabel *titleLabel;
    QLabel *bodyLabel;
    QComboBox *typeComboBox;
    QSpinBox *durationSpinBox;
    QLineEdit *titleEdit;
    QTextEdit *bodyEdit;
    QPushButton *showMessageButton;

    QAction *minimizeAction;
    QAction *maximizeAction;
    QAction *restoreAction;
    QAction *quitAction;

    QSystemTrayIcon *trayIcon;
    QMenu *trayIconMenu;

};

#endif

#include "window.h"

#include <QtGui>

Window::Window()
{
    createIconGroupBox();
    createMessageGroupBox();

    iconLabel->setMinimumWidth(durationLabel->sizeHint().width());

    createActions();
    createTrayIcon();

    connect(showMessageButton, SIGNAL(clicked()), this, SLOT(showMessage()));
    connect(showIconCheckBox, SIGNAL(toggled(bool)),
            trayIcon, SLOT(setVisible(bool)));
    connect(iconComboBox, SIGNAL(currentIndexChanged(int)),
            this, SLOT(setIcon(int)));
    connect(trayIcon, SIGNAL(messageClicked()), this, SLOT(messageClicked()));
    connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
            this, SLOT(iconActivated(QSystemTrayIcon::ActivationReason)));

    QVBoxLayout *mainLayout = new QVBoxLayout;
    mainLayout->addWidget(iconGroupBox);
    mainLayout->addWidget(messageGroupBox);
    setLayout(mainLayout);

    iconComboBox->setCurrentIndex(1);
    trayIcon->show();

    setWindowTitle(tr("Systray"));
    resize(400, 300);
}

    createIconGroupBox();
    createMessageGroupBox();

connect(showMessageButton, SIGNAL(clicked()), this, SLOT(showMessage()));
    connect(showIconCheckBox, SIGNAL(toggled(bool)),
            trayIcon, SLOT(setVisible(bool)));
    connect(iconComboBox, SIGNAL(currentIndexChanged(int)),
            this, SLOT(setIcon(int)));
    connect(trayIcon, SIGNAL(messageClicked()), this, SLOT(messageClicked()));
    connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
            this, SLOT(iconActivated(QSystemTrayIcon::ActivationReason)));

void Window::setVisible(bool visible)
{
    minimizeAction->setEnabled(visible);
    maximizeAction->setEnabled(!isMaximized());
    restoreAction->setEnabled(isMaximized() || !visible);
    QWidget::setVisible(visible);
}

void Window::setIcon(int index)
{
    QIcon icon = iconComboBox->itemIcon(index);
    trayIcon->setIcon(icon);
    setWindowIcon(icon);

    trayIcon->setToolTip(iconComboBox->itemText(index));
}

void Window::showMessage()
{
    QSystemTrayIcon::MessageIcon icon = QSystemTrayIcon::MessageIcon(
            typeComboBox->itemData(typeComboBox->currentIndex()).toInt());
    trayIcon->showMessage(titleEdit->text(), bodyEdit->toPlainText(), icon,
                          durationSpinBox->value() * 1000);
}

void Window::messageClicked()
{
    QMessageBox::information(0, tr("Systray"),
                             tr("Sorry, I already gave what help I could.\n"
                                "Maybe you should try asking a human?"));
}

void Window::createIconGroupBox()
{
    iconGroupBox = new QGroupBox(tr("Tray Icon"));

    iconLabel = new QLabel("Icon:");

    iconComboBox = new QComboBox;
    iconComboBox->addItem(QIcon(":/images/bad.svg"), tr("Bad"));
    iconComboBox->addItem(QIcon(":/images/heart.svg"), tr("Heart"));
    iconComboBox->addItem(QIcon(":/images/trash.svg"), tr("Trash"));

    showIconCheckBox = new QCheckBox(tr("Show icon"));
    showIconCheckBox->setChecked(true);

    QHBoxLayout *iconLayout = new QHBoxLayout;
    iconLayout->addWidget(iconLabel);
    iconLayout->addWidget(iconComboBox);
    iconLayout->addStretch();
    iconLayout->addWidget(showIconCheckBox);
    iconGroupBox->setLayout(iconLayout);
}

void Window::createMessageGroupBox()
{
    messageGroupBox = new QGroupBox(tr("Balloon Message"));

    typeLabel = new QLabel(tr("Type:"));

    typeComboBox = new QComboBox;
    typeComboBox->addItem(tr("None"), QSystemTrayIcon::NoIcon);
    typeComboBox->addItem(style()->standardIcon(
            QStyle::SP_MessageBoxInformation), tr("Information"),
            QSystemTrayIcon::Information);
    typeComboBox->addItem(style()->standardIcon(
            QStyle::SP_MessageBoxWarning), tr("Warning"),
            QSystemTrayIcon::Warning);
    typeComboBox->addItem(style()->standardIcon(
            QStyle::SP_MessageBoxCritical), tr("Critical"),
            QSystemTrayIcon::Critical);
    typeComboBox->setCurrentIndex(1);

    durationLabel = new QLabel(tr("Duration:"));

    durationSpinBox = new QSpinBox;
    durationSpinBox->setRange(5, 60);
    durationSpinBox->setSuffix(" s");
    durationSpinBox->setValue(15);

    durationWarningLabel = new QLabel(tr("(some systems might ignore this "
                                         "hint)"));
    durationWarningLabel->setIndent(10);

    titleLabel = new QLabel(tr("Title:"));

    titleEdit = new QLineEdit(tr("Cannot connect to network"));

    bodyLabel = new QLabel(tr("Body:"));

    bodyEdit = new QTextEdit;
    bodyEdit->setPlainText(tr("Don't believe me. Honestly, I don't have a "
                              "clue.\nClick this balloon for details."));

    showMessageButton = new QPushButton(tr("Show Message"));
    showMessageButton->setDefault(true);

    QGridLayout *messageLayout = new QGridLayout;
    messageLayout->addWidget(typeLabel, 0, 0);
    messageLayout->addWidget(typeComboBox, 0, 1, 1, 2);
    messageLayout->addWidget(durationLabel, 1, 0);
    messageLayout->addWidget(durationSpinBox, 1, 1);
    messageLayout->addWidget(durationWarningLabel, 1, 2, 1, 3);
    messageLayout->addWidget(titleLabel, 2, 0);
    messageLayout->addWidget(titleEdit, 2, 1, 1, 4);
    messageLayout->addWidget(bodyLabel, 3, 0);
    messageLayout->addWidget(bodyEdit, 3, 1, 2, 4);
    messageLayout->addWidget(showMessageButton, 5, 4);
    messageLayout->setColumnStretch(3, 1);
    messageLayout->setRowStretch(4, 1);
    messageGroupBox->setLayout(messageLayout);
}

void Window::createActions()
{
    minimizeAction = new QAction(tr("Mi&nimize"), this);
    connect(minimizeAction, SIGNAL(triggered()), this, SLOT(hide()));

    maximizeAction = new QAction(tr("Ma&ximize"), this);
    connect(maximizeAction, SIGNAL(triggered()), this, SLOT(showMaximized()));

    restoreAction = new QAction(tr("&Restore"), this);
    connect(restoreAction, SIGNAL(triggered()), this, SLOT(showNormal()));

    quitAction = new QAction(tr("&Quit"), this);
    connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
}

void Window::createTrayIcon()
{
    trayIconMenu = new QMenu(this);
    trayIconMenu->addAction(minimizeAction);
    trayIconMenu->addAction(maximizeAction);
    trayIconMenu->addAction(restoreAction);
    trayIconMenu->addSeparator();
    trayIconMenu->addAction(quitAction);

    trayIcon = new QSystemTrayIcon(this);
    trayIcon->setContextMenu(trayIconMenu);
}

#include "window.h"

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    if (!QSystemTrayIcon::isSystemTrayAvailable()) {
        QMessageBox::critical(0, QObject::tr("Systray"),
                              QObject::tr("I couldn't detect any system tray "
                                          "on this system."));
        return 1;
    }

    Window window;
    window.show();
    return app.exec();
}

~> qmake -project
~> qmake systray.pro
~> make