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/**************************************************************************** ** ** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). ** All rights reserved. ** Contact: Nokia Corporation ([email protected]) ** ** This file is part of a Qt Solutions component. ** ** Commercial Usage ** Licensees holding valid Qt Commercial licenses may use this file in ** accordance with the Qt Solutions 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. ** ** Please note Third Party Software included with Qt Solutions may impose ** additional restrictions and it is the user's responsibility to ensure ** that they have met the licensing requirements of the GPL, LGPL, or Qt ** Solutions Commercial license and the relevant license of the Third ** Party Software they are using. ** ** If you are unsure which license is appropriate for your use, please ** contact Nokia at [email protected]. ** ****************************************************************************/ #include <QtGui> #include <qtbrowserplugin.h> #ifdef QAXSERVER #include <ActiveQt/QAxBindable> #include <ActiveQt/QAxFactory> #include <qt_windows.h> #endif class Graph : public QWidget, public QtNPBindable #ifdef QAXSERVER , public QAxBindable #endif { Q_OBJECT Q_ENUMS(GraphStyle) Q_PROPERTY(GraphStyle graphStyle READ graphStyle WRITE setGraphStyle) Q_PROPERTY(QString src READ dataSourceUrl WRITE setDataSourceUrl) Q_CLASSINFO("ClassID", "{2e5b2715-46b2-4831-ba9b-6a3b195d5ec8}") Q_CLASSINFO("InterfaceID", "{94581136-3c0c-46cc-97a1-066061356d43}") Q_CLASSINFO("EventsID", "{8c191b77-1894-45c7-9d6b-201dede95410}") Q_CLASSINFO("MIME", "application/x-graphable:g1n:Graphable ASCII numeric data") public: Graph(QWidget *parent = 0); ~Graph(); enum GraphStyle { Pie, Bar }; void setGraphStyle(GraphStyle style); GraphStyle graphStyle() const; void setDataSourceUrl(const QString &url); QString dataSourceUrl() const; bool readData(QIODevice *source, const QString &format); bool writeData(QIODevice *sink); void transferComplete(const QString &url, int id, Reason r); protected: void timerEvent(QTimerEvent*); void enterEvent(QEvent *); void leaveEvent(QEvent *); void paintEvent(QPaintEvent*); void mousePressEvent(QMouseEvent *me); void paintWait(); void paintBar(QPaintEvent*); void paintPie(QPaintEvent*); private slots: void stylePie(); void styleBar(); void aboutPlugin(); void aboutData(); void aboutQt(); void aboutQtDevelopmentFrameworks(); private: struct Datum { double value; QString label; }; QList<Datum> data; void processData(QTextStream &in); QMenu *menu; QStatusBar *statusbar; QAction *pie, *bar; int pieRotation; int pieTimer; GraphStyle m_style; // Developer information for the About Data dialog: QString sourceUrl; int lastReqId, lastConfId; QString lastConfUrl; Reason lastConfReason; }; Graph::Graph(QWidget *parent) : QWidget(parent), pieRotation(0), pieTimer(0) { menu = new QMenu(this); QMenu *styles = menu->addMenu("&Styles"); pie = styles->addAction("&Pie",this,SLOT(stylePie())); pie->setShortcut(QString("Ctrl+P")); pie->setCheckable(true); bar = styles->addAction("&Bar", this, SLOT(styleBar())); bar->setShortcut(QString("Ctrl+B")); bar->setCheckable(true); QActionGroup *group = new QActionGroup(this); group->setExclusive(true); group->addAction(pie); group->addAction(bar); QMenu* help = menu->addMenu("&Help"); help->addAction("About &plugin...", this, SLOT(aboutPlugin()))->setShortcut(QString("Ctrl+A")); help->addAction("About &data...", this, SLOT(aboutData())); help->addAction("About &Qt...", this, SLOT(aboutQt())); help->addAction("About Qt &Development Frameworks...", this, SLOT(aboutQtDevelopmentFrameworks())); QShortcut *shortcut = new QShortcut(QKeySequence("Ctrl+F5"), this); connect(shortcut, SIGNAL(activated()), this, SLOT(aboutQt())); statusbar = new QStatusBar(this); setFocusPolicy(Qt::StrongFocus); setGraphStyle(Pie); QPalette pal = palette(); pal.setColor(QPalette::Window,Qt::white); setPalette(pal); lastReqId = 0; lastConfId = 0; lastConfReason = ReasonUnknown; } Graph::~Graph() { } void Graph::setGraphStyle(GraphStyle style) { if (pieTimer) killTimer(pieTimer); m_style = style; switch(m_style) { case Pie: pieTimer = startTimer(50); pie->setChecked(true); break; case Bar: bar->setChecked(true); break; } repaint(); } Graph::GraphStyle Graph::graphStyle() const { return m_style; } void Graph::setDataSourceUrl(const QString &url) { sourceUrl = url; #ifdef QAXSERVER // IE does not call our readData() if plugin is fullpage, so do it here if (QAxFactory::isServer() && clientSite()) { TCHAR cFileName[512]; if (URLDownloadToCacheFile(0, url.utf16(), cFileName, 512, 0, 0) == S_OK) readData(&QFile(QString::fromUtf16(cFileName)), QString()); } #endif } QString Graph::dataSourceUrl() const { return sourceUrl; } void Graph::aboutPlugin() { openUrl("http://qt.nokia.com/products/appdev/add-on-products/catalog/4/Utilities/qtbrowserplugin/"); } void Graph::aboutData() { QString page = parameters().value("datapage").toString(); if (!page.isEmpty()) { openUrl(page); } else { QByteArray table; table += "<b>Data loaded from " + sourceUrl.toLatin1() + "</b>\n"; table += "<p>This data has been loaded with streammode = '"; table += parameters().contains("streammode") ? parameters().value("streammode").toByteArray() : QByteArray("Default"); table += "'</p>\n"; table += "<table>\n"; for (int i = 0; i < data.count(); ++i) { Datum datum = data.at(i); table += "<tr><td>" + datum.label + "</td><td>" + QString::number(datum.value) + "</td></tr>\n"; } table += "</table>\n"; table += "<p><b>OpenURL() API usage information:</b>\n"; table += "<br>Last OpenURL() request id: " + QString::number(lastReqId); table += "<br>Last confirmation id: " + QString::number(lastConfId); table += " Reason: " + QString::number((int)lastConfReason); table += "<br>URL: " + lastConfUrl; table += "</p>\n"; QMessageBox::information(this, "Data information", QLatin1String(table)); } } void Graph::transferComplete(const QString &url, int id, Reason r) { lastConfId = id; lastConfUrl = url; lastConfReason = r; } void Graph::aboutQt() { QMessageBox::aboutQt(this); } void Graph::aboutQtDevelopmentFrameworks() { lastReqId = openUrl("http://qt.nokia.com"); } void Graph::stylePie() { setGraphStyle(Pie); } void Graph::styleBar() { setGraphStyle(Bar); } bool Graph::readData(QIODevice *source, const QString &/*format*/) { if (!source->open(QIODevice::ReadOnly|QIODevice::Text)) return false; data.clear(); QTextStream in(source); processData(in); update(); return true; } void Graph::processData(QTextStream &in) { while (!in.atEnd()) { Datum datum; QString value; in >> value; in >> datum.label; bool ok; datum.value = value.toDouble(&ok); if (ok) data += datum; } } bool Graph::writeData(QIODevice *target) { if (!target->open(QIODevice::WriteOnly|QIODevice::Text)) return false; QTextStream out(target); foreach(Datum datum, data) { out << datum.value << "\t" << datum.label << endl; } return true; } void Graph::timerEvent(QTimerEvent *e) { if (e->timerId() == pieTimer) { pieRotation = (pieRotation + 1) % 360; update(); } QWidget::timerEvent(e); } void Graph::enterEvent(QEvent *) { statusbar->showMessage(QString("Qt Grapher plugin [%1]").arg(mimeType())); } void Graph::leaveEvent(QEvent *) { if (!QApplication::activePopupWidget()) { statusbar->clearMessage(); } } void Graph::paintEvent(QPaintEvent* event) { if (!data.count()) { paintWait(); } else { switch (m_style) { case Pie: paintPie(event); break; default: paintBar(event); break; } } } void Graph::mousePressEvent(QMouseEvent *me) { menu->exec(me->globalPos()); } void Graph::paintWait() { QPainter p(this); p.drawText(rect(), Qt::AlignCenter, "Loading..."); } void Graph::paintBar(QPaintEvent* event) { const int count = data.count(); double max = 0.0; for (int i = 0; i < count; ++i) { double value = data.at(i).value; if (value > max) max = value; } QPainter painter(this); painter.setClipRect(event->rect()); painter.save(); painter.setWindow(0, qRound(max), count * 20, qRound(-max)); painter.setViewport(20, 5, width() - 40, height() - 40); for (int i = 0; i < count; ++i) { double value = data.at(i).value; QColor c; c.setHsv((i * 255)/count, 255, 255);// rainbow effect painter.setBrush(c); painter.drawRect(i * 20, 0, 20, qRound(value)); } painter.restore(); painter.setClipRect(QRect()); } void Graph::paintPie(QPaintEvent* event) { const int count = data.count(); double total = 0.0; for (int i = 0; i < count; ++i) { double value = data.at(i).value; total += value; } int apos = (pieRotation-90)*16; QPainter painter(this); painter.setRenderHint(QPainter::Antialiasing); painter.setClipRect(event->rect()); QRect r(rect()); r.adjust(10, 10, -10, -10); for (int i = 0; i < count; ++i) { double value = data.at(i).value; QColor c; c.setHsv((i * 255)/count, 255, 255);// rainbow effect painter.setBrush( c ); int a = int((value * 360.0) / total * 16.0 + 0.5); painter.drawPie(r, -apos, -a); apos += a; } } #include "grapher.moc" QTNPFACTORY_BEGIN("Qt-based Graph Plugin", "A Qt-based NSAPI plug-in that graphs numeric data"); QTNPCLASS(Graph) QTNPFACTORY_END() #ifdef QAXSERVER #include <ActiveQt/QAxFactory> QAXFACTORY_BEGIN("{89ab08da-df8c-4bd0-8327-72f73741c1a6}", "{082bd921-0832-4ca7-ab5a-ec06ca7f3350}") QAXCLASS(Graph) QAXFACTORY_END() #endif
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