C++/Qt/QX11EmbedWidget — различия между версиями
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Текущая версия на 10:24, 25 мая 2010
Using QX11EmbedWidget
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt 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
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** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** 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
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#ifndef EMBEDWIDGET_H
#define EMBEDWIDGET_H
#include <QRadialGradient>
#include <QSize>
#include <QX11EmbedWidget>
class QPaintEvent;
class EmbedWidget : public QX11EmbedWidget
{
Q_OBJECT
public:
EmbedWidget(QWidget *parent = 0);
QSize sizeHint() const;
protected:
void paintEvent(QPaintEvent *event);
private:
QRadialGradient gradient;
};
#endif
#include <QtGui>
#include "embedwidget.h"
EmbedWidget::EmbedWidget(QWidget *parent)
: QX11EmbedWidget(parent)
{
gradient = QRadialGradient(100, 100, 90, 60, 60);
gradient.setColorAt(0.0, Qt::white);
gradient.setColorAt(0.9, QColor(192, 192, 255));
gradient.setColorAt(1.0, QColor(0, 32, 64));
}
QSize EmbedWidget::sizeHint() const
{
return QSize(200, 200);
}
void EmbedWidget::paintEvent(QPaintEvent *event)
{
QPainter painter;
painter.begin(this);
painter.setRenderHint(QPainter::Antialiasing);
painter.fillRect(event->rect(), QBrush(gradient));
painter.end();
}
#include <QApplication>
#include "embedwidget.h"
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
if (app.arguments().count() != 2) {
qFatal("Error - expected window id as argument");
return 1;
}
QString windowId(app.arguments()[1]);
EmbedWidget window;
window.embedInto(windowId.toULong());
window.show();
return app.exec();
}