fb7bfbf18d
We can use QOverload since Qt 5.7 (it depends on Q_COMPILER_VARIADIC_TEMPLATES which is required since Qt 5.7). Use it in the examples to show the best practice. qOverload currently can't be used because it requires c++14. Change-Id: I94a3c0db9d551fe169fa3d19c07ec0b329d5946c Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io> Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
289 lines
9.5 KiB
C++
289 lines
9.5 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** BSD License Usage
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** Alternatively, you may use this file under the terms of the BSD license
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** as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "window.h"
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#ifndef QT_NO_SYSTEMTRAYICON
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#include <QAction>
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#include <QCheckBox>
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#include <QComboBox>
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#include <QCoreApplication>
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#include <QCloseEvent>
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#include <QGroupBox>
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#include <QLabel>
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#include <QLineEdit>
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#include <QMenu>
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#include <QPushButton>
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#include <QSpinBox>
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#include <QTextEdit>
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#include <QVBoxLayout>
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#include <QMessageBox>
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//! [0]
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Window::Window()
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{
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createIconGroupBox();
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createMessageGroupBox();
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iconLabel->setMinimumWidth(durationLabel->sizeHint().width());
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createActions();
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createTrayIcon();
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connect(showMessageButton, &QAbstractButton::clicked, this, &Window::showMessage);
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connect(showIconCheckBox, &QAbstractButton::toggled, trayIcon, &QSystemTrayIcon::setVisible);
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connect(iconComboBox, QOverload<int>::of(&QComboBox::currentIndexChanged),
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this, &Window::setIcon);
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connect(trayIcon, &QSystemTrayIcon::messageClicked, this, &Window::messageClicked);
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connect(trayIcon, &QSystemTrayIcon::activated, this, &Window::iconActivated);
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QVBoxLayout *mainLayout = new QVBoxLayout;
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mainLayout->addWidget(iconGroupBox);
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mainLayout->addWidget(messageGroupBox);
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setLayout(mainLayout);
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iconComboBox->setCurrentIndex(1);
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trayIcon->show();
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setWindowTitle(tr("Systray"));
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resize(400, 300);
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}
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//! [0]
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//! [1]
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void Window::setVisible(bool visible)
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{
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minimizeAction->setEnabled(visible);
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maximizeAction->setEnabled(!isMaximized());
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restoreAction->setEnabled(isMaximized() || !visible);
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QDialog::setVisible(visible);
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}
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//! [1]
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//! [2]
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void Window::closeEvent(QCloseEvent *event)
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{
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#ifdef Q_OS_OSX
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if (!event->spontaneous() || !isVisible()) {
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return;
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}
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#endif
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if (trayIcon->isVisible()) {
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QMessageBox::information(this, tr("Systray"),
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tr("The program will keep running in the "
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"system tray. To terminate the program, "
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"choose <b>Quit</b> in the context menu "
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"of the system tray entry."));
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hide();
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event->ignore();
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}
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}
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//! [2]
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//! [3]
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void Window::setIcon(int index)
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{
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QIcon icon = iconComboBox->itemIcon(index);
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trayIcon->setIcon(icon);
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setWindowIcon(icon);
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trayIcon->setToolTip(iconComboBox->itemText(index));
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}
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//! [3]
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//! [4]
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void Window::iconActivated(QSystemTrayIcon::ActivationReason reason)
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{
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switch (reason) {
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case QSystemTrayIcon::Trigger:
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case QSystemTrayIcon::DoubleClick:
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iconComboBox->setCurrentIndex((iconComboBox->currentIndex() + 1) % iconComboBox->count());
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break;
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case QSystemTrayIcon::MiddleClick:
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showMessage();
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break;
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default:
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;
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}
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}
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//! [4]
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//! [5]
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void Window::showMessage()
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{
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showIconCheckBox->setChecked(true);
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QSystemTrayIcon::MessageIcon icon = QSystemTrayIcon::MessageIcon(
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typeComboBox->itemData(typeComboBox->currentIndex()).toInt());
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trayIcon->showMessage(titleEdit->text(), bodyEdit->toPlainText(), icon,
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durationSpinBox->value() * 1000);
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}
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//! [5]
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//! [6]
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void Window::messageClicked()
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{
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QMessageBox::information(0, tr("Systray"),
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tr("Sorry, I already gave what help I could.\n"
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"Maybe you should try asking a human?"));
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}
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//! [6]
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void Window::createIconGroupBox()
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{
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iconGroupBox = new QGroupBox(tr("Tray Icon"));
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iconLabel = new QLabel("Icon:");
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iconComboBox = new QComboBox;
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iconComboBox->addItem(QIcon(":/images/bad.png"), tr("Bad"));
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iconComboBox->addItem(QIcon(":/images/heart.png"), tr("Heart"));
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iconComboBox->addItem(QIcon(":/images/trash.png"), tr("Trash"));
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showIconCheckBox = new QCheckBox(tr("Show icon"));
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showIconCheckBox->setChecked(true);
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QHBoxLayout *iconLayout = new QHBoxLayout;
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iconLayout->addWidget(iconLabel);
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iconLayout->addWidget(iconComboBox);
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iconLayout->addStretch();
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iconLayout->addWidget(showIconCheckBox);
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iconGroupBox->setLayout(iconLayout);
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}
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void Window::createMessageGroupBox()
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{
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messageGroupBox = new QGroupBox(tr("Balloon Message"));
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typeLabel = new QLabel(tr("Type:"));
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typeComboBox = new QComboBox;
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typeComboBox->addItem(tr("None"), QSystemTrayIcon::NoIcon);
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typeComboBox->addItem(style()->standardIcon(
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QStyle::SP_MessageBoxInformation), tr("Information"),
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QSystemTrayIcon::Information);
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typeComboBox->addItem(style()->standardIcon(
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QStyle::SP_MessageBoxWarning), tr("Warning"),
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QSystemTrayIcon::Warning);
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typeComboBox->addItem(style()->standardIcon(
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QStyle::SP_MessageBoxCritical), tr("Critical"),
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QSystemTrayIcon::Critical);
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typeComboBox->setCurrentIndex(1);
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durationLabel = new QLabel(tr("Duration:"));
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durationSpinBox = new QSpinBox;
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durationSpinBox->setRange(5, 60);
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durationSpinBox->setSuffix(" s");
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durationSpinBox->setValue(15);
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durationWarningLabel = new QLabel(tr("(some systems might ignore this "
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"hint)"));
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durationWarningLabel->setIndent(10);
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titleLabel = new QLabel(tr("Title:"));
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titleEdit = new QLineEdit(tr("Cannot connect to network"));
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bodyLabel = new QLabel(tr("Body:"));
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bodyEdit = new QTextEdit;
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bodyEdit->setPlainText(tr("Don't believe me. Honestly, I don't have a "
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"clue.\nClick this balloon for details."));
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showMessageButton = new QPushButton(tr("Show Message"));
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showMessageButton->setDefault(true);
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QGridLayout *messageLayout = new QGridLayout;
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messageLayout->addWidget(typeLabel, 0, 0);
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messageLayout->addWidget(typeComboBox, 0, 1, 1, 2);
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messageLayout->addWidget(durationLabel, 1, 0);
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messageLayout->addWidget(durationSpinBox, 1, 1);
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messageLayout->addWidget(durationWarningLabel, 1, 2, 1, 3);
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messageLayout->addWidget(titleLabel, 2, 0);
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messageLayout->addWidget(titleEdit, 2, 1, 1, 4);
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messageLayout->addWidget(bodyLabel, 3, 0);
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messageLayout->addWidget(bodyEdit, 3, 1, 2, 4);
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messageLayout->addWidget(showMessageButton, 5, 4);
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messageLayout->setColumnStretch(3, 1);
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messageLayout->setRowStretch(4, 1);
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messageGroupBox->setLayout(messageLayout);
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}
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void Window::createActions()
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{
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minimizeAction = new QAction(tr("Mi&nimize"), this);
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connect(minimizeAction, &QAction::triggered, this, &QWidget::hide);
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maximizeAction = new QAction(tr("Ma&ximize"), this);
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connect(maximizeAction, &QAction::triggered, this, &QWidget::showMaximized);
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restoreAction = new QAction(tr("&Restore"), this);
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connect(restoreAction, &QAction::triggered, this, &QWidget::showNormal);
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quitAction = new QAction(tr("&Quit"), this);
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connect(quitAction, &QAction::triggered, qApp, &QCoreApplication::quit);
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}
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void Window::createTrayIcon()
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{
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trayIconMenu = new QMenu(this);
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trayIconMenu->addAction(minimizeAction);
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trayIconMenu->addAction(maximizeAction);
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trayIconMenu->addAction(restoreAction);
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trayIconMenu->addSeparator();
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trayIconMenu->addAction(quitAction);
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trayIcon = new QSystemTrayIcon(this);
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trayIcon->setContextMenu(trayIconMenu);
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}
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#endif
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