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int main(int argc, char *argv[])
{
// Initializes the resources specified by the .qrc file with the specified base name. Normally, when resources are built as part of the application, the resources are loaded automatically at startup.
// The Q_INIT_RESOURCE() macro is necessary on some platforms for resources stored in a static library.
Q_INIT_RESOURCE(systray);
QApplication app(argc, argv);
// Returns true if the system tray is available; otherwise returns false.
if (!QSystemTrayIcon::isSystemTrayAvailable())
{
QMessageBox::critical(0, QObject::tr("Systray"),
QObject::tr("I couldn't detect any system tray on this system."));
return 1;
}
QApplication::setQuitOnLastWindowClosed(false);
Window window;
window.show();
return app.exec();
}
Window::Window()
{
// Tray Icon Group Box(采用HBox布局)
createIconGroupBox();
// Ballon Message Group Box(采用Grid布局)
createMessageGroupBox();
iconLabel->setMinimumWidth(durationLabel->sizeHint().width());
// Tray right button menu
createActions();
// Create Tray Icon
createTrayIcon();
// 信号与槽的连接
connect(showMessageButton, &QAbstractButton::clicked,
this, &Window::showMessage);
connect(showIconCheckBox, &QAbstractButton::toggled,
trayIcon, &QSystemTrayIcon::setVisible);
connect(iconComboBox, QOverload<int>::of(&QComboBox::currentIndexChanged),
this, &Window::setIcon);
// Tray 信号槽
connect(trayIcon, &QSystemTrayIcon::messageClicked,
this, &Window::messageClicked);
connect(trayIcon, &QSystemTrayIcon::activated,
this, &Window::iconActivated);
QVBoxLayout *mainLayout = new QVBoxLayout;
mainLayout->addWidget(iconGroupBox);
mainLayout->addWidget(messageGroupBox);
setLayout(mainLayout);
iconComboBox->setCurrentIndex(1);
trayIcon->show();
setWindowTitle(tr("Systray"));
resize(400, 300);
}
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);
}
// 重写closeEvent实现关闭时隐藏到托盘
void Window::closeEvent(QCloseEvent *event)
{
#ifdef Q_OS_OSX
if (!event->spontaneous() || !isVisible())
{
return;
}
#endif
if (trayIcon->isVisible())
{
QMessageBox::information(this, tr("Systray"),
tr("The program will keep running in the "
"system tray. To terminate the program, "
"choose <b>Quit</b> in the context menu "
"of the system tray entry."));
hide();
event->ignore();
}
}
// 重写setVisible实现右键菜单的动态变化
void Window::setVisible(bool visible)
{
minimizeAction->setEnabled(visible);
maximizeAction->setEnabled(!isMaximized());
restoreAction->setEnabled(isMaximized() || !visible);
QDialog::setVisible(visible);
}
// 单击或双击托盘图标动态改变图标，点击滚轮显示气泡信息
void Window::iconActivated(QSystemTrayIcon::ActivationReason reason)
{
switch (reason)
{
case QSystemTrayIcon::Trigger:
case QSystemTrayIcon::DoubleClick:
iconComboBox->setCurrentIndex((iconComboBox->currentIndex() + 1) %
iconComboBox->count());
break;
case QSystemTrayIcon::MiddleClick:
showMessage();
break;
default:
break;
}
}
void Window::showMessage()
{
showIconCheckBox->setChecked(true);
QSystemTrayIcon::MessageIcon msgIcon = QSystemTrayIcon::MessageIcon(typeComboBox->itemData(typeComboBox->currentIndex()).toInt());
if (msgIcon == QSystemTrayIcon::NoIcon)
{
QIcon icon(iconComboBox->itemIcon(iconComboBox->currentIndex()));
trayIcon->showMessage(titleEdit->text(), bodyEdit->toPlainText(), icon, durationSpinBox->value() * 1000);
}
else
{
trayIcon->showMessage(titleEdit->text(), bodyEdit->toPlainText(), msgIcon, durationSpinBox->value() * 1000);
}
}
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