C++/Qt/QSystemTrayIcon
System tray icon
<source lang="cpp"> /****************************************************************************
- Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
- All rights reserved.
- Contact: Nokia Corporation (qt-info@nokia.com)
- This file is part of the examples of the Qt Toolkit.
- $QT_BEGIN_LICENSE:LGPL$
- Commercial Usage
- Licensees holding valid Qt Commercial licenses may use this file in
- accordance with the Qt Commercial License Agreement provided with the
- Software or, alternatively, in accordance with the terms contained in
- a written agreement between you and Nokia.
- GNU Lesser General Public License Usage
- Alternatively, this file may be used under the terms of the GNU Lesser
- General Public License version 2.1 as published by the Free Software
- Foundation and appearing in the file LICENSE.LGPL included in the
- packaging of this file. Please review the following information to
- ensure the GNU Lesser General Public License version 2.1 requirements
- will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
- In addition, as a special exception, Nokia gives you certain additional
- rights. These rights are described in the Nokia Qt LGPL Exception
- version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
- GNU General Public License Usage
- Alternatively, this file may be used under the terms of the GNU
- General Public License version 3.0 as published by the Free Software
- Foundation and appearing in the file LICENSE.GPL included in the
- packaging of this file. Please review the following information to
- ensure the GNU General Public License version 3.0 requirements will be
- met: http://www.gnu.org/copyleft/gpl.html.
- If you have questions regarding the use of this file, please contact
- Nokia at qt-info@nokia.com.
- $QT_END_LICENSE$
-
- /
- ifndef WINDOW_H
- define WINDOW_H
- include <QSystemTrayIcon>
- include <QDialog>
QT_BEGIN_NAMESPACE class QAction; class QCheckBox; class QComboBox; class QGroupBox; class QLabel; class QLineEdit; class QMenu; class QPushButton; class QSpinBox; class QTextEdit; QT_END_NAMESPACE
class Window : public QDialog {
Q_OBJECT
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();
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 <QtGui>
- include "window.h"
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);
}
void Window::setVisible(bool visible) {
minimizeAction->setEnabled(visible); maximizeAction->setEnabled(!isMaximized()); restoreAction->setEnabled(isMaximized() || !visible); QDialog::setVisible(visible);
}
void Window::closeEvent(QCloseEvent *event) {
if (trayIcon->isVisible()) {
QMessageBox::information(this, tr("Systray"),
tr("The program will keep running in the "
"system tray. To terminate the program, "
"choose Quit in the context menu "
"of the system tray entry."));
hide();
event->ignore();
}
}
void Window::setIcon(int index) {
QIcon icon = iconComboBox->itemIcon(index); trayIcon->setIcon(icon); setWindowIcon(icon); trayIcon->setToolTip(iconComboBox->itemText(index));
}
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:
;
}
}
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 <QtGui>
- include "window.h"
int main(int argc, char *argv[]) {
Q_INIT_RESOURCE(systray);
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;
}
QApplication::setQuitOnLastWindowClosed(false);
Window window;
window.show();
return app.exec();
}
</source>
