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+/****************************************************************************
+**
+** 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 <QtWidgets>
+
+#include "shapedclock.h"
+
+//! [0]
+ShapedClock::ShapedClock(QWidget *parent)
+ : QWidget(parent, Qt::FramelessWindowHint | Qt::WindowSystemMenuHint)
+{
+ QTimer *timer = new QTimer(this);
+ connect(timer, SIGNAL(timeout()), this, SLOT(update()));
+ timer->start(1000);
+
+ QAction *quitAction = new QAction(tr("E&xit"), this);
+ quitAction->setShortcut(tr("Ctrl+Q"));
+ connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
+ addAction(quitAction);
+
+ setContextMenuPolicy(Qt::ActionsContextMenu);
+ setToolTip(tr("Drag the clock with the left mouse button.\n"
+ "Use the right mouse button to open a context menu."));
+ setWindowTitle(tr("Shaped Analog Clock"));
+}
+//! [0]
+
+//! [1]
+void ShapedClock::mousePressEvent(QMouseEvent *event)
+{
+ if (event->button() == Qt::LeftButton) {
+ dragPosition = event->globalPos() - frameGeometry().topLeft();
+ event->accept();
+ }
+}
+//! [1]
+
+//! [2]
+void ShapedClock::mouseMoveEvent(QMouseEvent *event)
+{
+ if (event->buttons() & Qt::LeftButton) {
+ move(event->globalPos() - dragPosition);
+ event->accept();
+ }
+}
+//! [2]
+
+//! [3]
+void ShapedClock::paintEvent(QPaintEvent *)
+{
+ static const QPoint hourHand[3] = {
+ QPoint(7, 8),
+ QPoint(-7, 8),
+ QPoint(0, -40)
+ };
+ static const QPoint minuteHand[3] = {
+ QPoint(7, 8),
+ QPoint(-7, 8),
+ QPoint(0, -70)
+ };
+
+ QColor hourColor(127, 0, 127);
+ QColor minuteColor(0, 127, 127, 191);
+
+ int side = qMin(width(), height());
+ QTime time = QTime::currentTime();
+
+ QPainter painter(this);
+ painter.setRenderHint(QPainter::Antialiasing);
+ painter.translate(width() / 2, height() / 2);
+ painter.scale(side / 200.0, side / 200.0);
+
+ painter.setPen(Qt::NoPen);
+ painter.setBrush(hourColor);
+
+ painter.save();
+ painter.rotate(30.0 * ((time.hour() + time.minute() / 60.0)));
+ painter.drawConvexPolygon(hourHand, 3);
+ painter.restore();
+
+ painter.setPen(hourColor);
+
+ for (int i = 0; i < 12; ++i) {
+ painter.drawLine(88, 0, 96, 0);
+ painter.rotate(30.0);
+ }
+
+ painter.setPen(Qt::NoPen);
+ painter.setBrush(minuteColor);
+
+ painter.save();
+ painter.rotate(6.0 * (time.minute() + time.second() / 60.0));
+ painter.drawConvexPolygon(minuteHand, 3);
+ painter.restore();
+
+ painter.setPen(minuteColor);
+
+ for (int j = 0; j < 60; ++j) {
+ if ((j % 5) != 0)
+ painter.drawLine(92, 0, 96, 0);
+ painter.rotate(6.0);
+ }
+}
+//! [3]
+
+//! [4]
+void ShapedClock::resizeEvent(QResizeEvent * /* event */)
+{
+ int side = qMin(width(), height());
+ QRegion maskedRegion(width() / 2 - side / 2, height() / 2 - side / 2, side,
+ side, QRegion::Ellipse);
+ setMask(maskedRegion);
+}
+//! [4]
+
+//! [5]
+QSize ShapedClock::sizeHint() const
+{
+ return QSize(100, 100);
+}
+//! [5]