в 14:21, 25 мая 2010

2010-05-25T14:21:06Z

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2010-05-25T10:24:32Z

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==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 <b>Quit</b> 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>

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