Re-add the Systray example.

Remove its dependency on QtSvg by converting the icons to
(optimized) png files.

Change-Id: If63257938dc816d7ab76a3042b9ac88ef3d51b07
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>

9 files changed, 467 insertions, 1 deletions

diff --git a/examples/desktop/desktop.pro b/examples/desktop/desktop.pro
index fc232088e0..adfa51f130 100644
--- a/examples/desktop/desktop.pro
+++ b/examples/desktop/desktop.pro
@@ -1,6 +1,6 @@
 TEMPLATE      = subdirs
 CONFIG       += ordered
-SUBDIRS       = screenshot
+SUBDIRS       = screenshot systray
 
 # install
 target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/desktop
diff --git a/examples/desktop/systray/images/bad.png b/examples/desktop/systray/images/bad.png
new file mode 100644
index 0000000000..c8701a241a
--- /dev/null
+++ b/examples/desktop/systray/images/bad.png
diff --git a/examples/desktop/systray/images/heart.png b/examples/desktop/systray/images/heart.png
new file mode 100644
index 0000000000..cee1302b7d
--- /dev/null
+++ b/examples/desktop/systray/images/heart.png
diff --git a/examples/desktop/systray/images/trash.png b/examples/desktop/systray/images/trash.png
new file mode 100644
index 0000000000..4c24db926d
--- /dev/null
+++ b/examples/desktop/systray/images/trash.png
diff --git a/examples/desktop/systray/main.cpp b/examples/desktop/systray/main.cpp
new file mode 100644
index 0000000000..6695113f71
--- /dev/null
+++ b/examples/desktop/systray/main.cpp
@@ -0,0 +1,63 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+#include <QMessageBox>
+
+#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();
+}
diff --git a/examples/desktop/systray/systray.pro b/examples/desktop/systray/systray.pro
new file mode 100644
index 0000000000..5fdcf1f9c8
--- /dev/null
+++ b/examples/desktop/systray/systray.pro
@@ -0,0 +1,14 @@
+HEADERS       = window.h
+SOURCES       = main.cpp \
+                window.cpp
+RESOURCES     = systray.qrc
+
+QT += widgets
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/desktop/systray
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS systray.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/desktop/systray
+INSTALLS += target sources
+
+simulator: warning(This example might not fully work on Simulator platform)
diff --git a/examples/desktop/systray/systray.qrc b/examples/desktop/systray/systray.qrc
new file mode 100644
index 0000000000..a8b6535849
--- /dev/null
+++ b/examples/desktop/systray/systray.qrc
@@ -0,0 +1,7 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource prefix="/">
+   <file>images/bad.png</file>
+   <file>images/heart.png</file>
+   <file>images/trash.png</file>
+</qresource>
+</RCC>
diff --git a/examples/desktop/systray/window.cpp b/examples/desktop/systray/window.cpp
new file mode 100644
index 0000000000..73dc910d3b
--- /dev/null
+++ b/examples/desktop/systray/window.cpp
@@ -0,0 +1,270 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "window.h"
+#include <QtGui>
+
+#include <QAction>
+#include <QCheckBox>
+#include <QComboBox>
+#include <QGroupBox>
+#include <QLabel>
+#include <QLineEdit>
+#include <QMenu>
+#include <QPushButton>
+#include <QSpinBox>
+#include <QTextEdit>
+#include <QVBoxLayout>
+#include <QMessageBox>
+
+//! [0]
+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);
+}
+//! [0]
+
+//! [1]
+void Window::setVisible(bool visible)
+{
+    minimizeAction->setEnabled(visible);
+    maximizeAction->setEnabled(!isMaximized());
+    restoreAction->setEnabled(isMaximized() || !visible);
+    QDialog::setVisible(visible);
+}
+//! [1]
+
+//! [2]
+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();
+    }
+}
+//! [2]
+
+//! [3]
+void Window::setIcon(int index)
+{
+    QIcon icon = iconComboBox->itemIcon(index);
+    trayIcon->setIcon(icon);
+    setWindowIcon(icon);
+
+    trayIcon->setToolTip(iconComboBox->itemText(index));
+}
+//! [3]
+
+//! [4]
+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:
+        ;
+    }
+}
+//! [4]
+
+//! [5]
+void Window::showMessage()
+{
+    QSystemTrayIcon::MessageIcon icon = QSystemTrayIcon::MessageIcon(
+            typeComboBox->itemData(typeComboBox->currentIndex()).toInt());
+    trayIcon->showMessage(titleEdit->text(), bodyEdit->toPlainText(), icon,
+                          durationSpinBox->value() * 1000);
+}
+//! [5]
+
+//! [6]
+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?"));
+}
+//! [6]
+
+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);
+}
diff --git a/examples/desktop/systray/window.h b/examples/desktop/systray/window.h
new file mode 100644
index 0000000000..80b7a20754
--- /dev/null
+++ b/examples/desktop/systray/window.h
@@ -0,0 +1,112 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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
+
+//! [0]
+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;
+};
+//! [0]
+
+#endif