From 0f04787ffb587a979386bcce432dd181ac3a06db Mon Sep 17 00:00:00 2001 From: Alan Alpert Date: Thu, 9 Aug 2012 11:24:20 +1000 Subject: More consistent examples directory structure Under examples the next directory level distinguishes imports/modules and the next directory level distinguishes examples. Change-Id: Icabadaac6ccb9c1c424efa9c9e64a7d94bc7c0da Reviewed-by: Alan Alpert --- examples/qml/plugins/plugin.cpp | 155 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 155 insertions(+) create mode 100644 examples/qml/plugins/plugin.cpp (limited to 'examples/qml/plugins/plugin.cpp') diff --git a/examples/qml/plugins/plugin.cpp b/examples/qml/plugins/plugin.cpp new file mode 100644 index 0000000000..f20e6935be --- /dev/null +++ b/examples/qml/plugins/plugin.cpp @@ -0,0 +1,155 @@ +/**************************************************************************** +** +** 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 +#include +#include +#include +#include +#include + +// Implements a "TimeModel" class with hour and minute properties +// that change on-the-minute yet efficiently sleep the rest +// of the time. + +class MinuteTimer : public QObject +{ + Q_OBJECT +public: + MinuteTimer(QObject *parent) : QObject(parent) + { + } + + void start() + { + if (!timer.isActive()) { + time = QTime::currentTime(); + timer.start(60000-time.second()*1000, this); + } + } + + void stop() + { + timer.stop(); + } + + int hour() const { return time.hour(); } + int minute() const { return time.minute(); } + +signals: + void timeChanged(); + +protected: + void timerEvent(QTimerEvent *) + { + QTime now = QTime::currentTime(); + if (now.second() == 59 && now.minute() == time.minute() && now.hour() == time.hour()) { + // just missed time tick over, force it, wait extra 0.5 seconds + time.addSecs(60); + timer.start(60500, this); + } else { + time = now; + timer.start(60000-time.second()*1000, this); + } + emit timeChanged(); + } + +private: + QTime time; + QBasicTimer timer; +}; + +//![0] +class TimeModel : public QObject +{ + Q_OBJECT + Q_PROPERTY(int hour READ hour NOTIFY timeChanged) + Q_PROPERTY(int minute READ minute NOTIFY timeChanged) +//![0] + +public: + TimeModel(QObject *parent=0) : QObject(parent) + { + if (++instances == 1) { + if (!timer) + timer = new MinuteTimer(QCoreApplication::instance()); + connect(timer, SIGNAL(timeChanged()), this, SIGNAL(timeChanged())); + timer->start(); + } + } + + ~TimeModel() + { + if (--instances == 0) { + timer->stop(); + } + } + + int minute() const { return timer->minute(); } + int hour() const { return timer->hour(); } + +signals: + void timeChanged(); + +private: + QTime t; + static MinuteTimer *timer; + static int instances; +}; + +int TimeModel::instances=0; +MinuteTimer *TimeModel::timer=0; + +//![plugin] +class QExampleQmlPlugin : public QQmlExtensionPlugin +{ + Q_OBJECT + Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QQmlExtensionInterface") + +public: + void registerTypes(const char *uri) + { + Q_ASSERT(uri == QLatin1String("com.nokia.TimeExample")); + qmlRegisterType(uri, 1, 0, "Time"); + } +}; +//![plugin] + +#include "plugin.moc" -- cgit v1.2.3