Mega Code Archive
Renderer pattern
<![CDATA[
/****************************************************************************
**
** 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** 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
** 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef CLIPWINDOW_H
#define CLIPWINDOW_H
#include <QMainWindow>
class QClipboard;
class QComboBox;
class QLabel;
class QListWidget;
class QMimeData;
class QWidget;
class ClipWindow : public QMainWindow
{
Q_OBJECT
public:
ClipWindow(QWidget *parent = 0);
public slots:
void updateClipboard();
void updateData(const QString &format);
private:
int currentItem;
QClipboard *clipboard;
QComboBox *mimeTypeCombo;
QLabel *dataInfoLabel;
QListWidget *previousItems;
};
#endif
#include <QtGui>
#include "clipwindow.h"
ClipWindow::ClipWindow(QWidget *parent)
: QMainWindow(parent)
{
clipboard = QApplication::clipboard();
QWidget *centralWidget = new QWidget(this);
QWidget *currentItem = new QWidget(centralWidget);
QLabel *mimeTypeLabel = new QLabel(tr("MIME types:"), currentItem);
mimeTypeCombo = new QComboBox(currentItem);
QLabel *dataLabel = new QLabel(tr("Data:"), currentItem);
dataInfoLabel = new QLabel("", currentItem);
previousItems = new QListWidget(centralWidget);
connect(clipboard, SIGNAL(dataChanged()), this, SLOT(updateClipboard()));
connect(mimeTypeCombo, SIGNAL(activated(const QString &)),
this, SLOT(updateData(const QString &)));
QVBoxLayout *currentLayout = new QVBoxLayout(currentItem);
currentLayout->addWidget(mimeTypeLabel);
currentLayout->addWidget(mimeTypeCombo);
currentLayout->addWidget(dataLabel);
currentLayout->addWidget(dataInfoLabel);
currentLayout->addStretch(1);
QHBoxLayout *mainLayout = new QHBoxLayout(centralWidget);
mainLayout->addWidget(currentItem, 1);
mainLayout->addWidget(previousItems);
setCentralWidget(centralWidget);
setWindowTitle(tr("Clipboard"));
}
void ClipWindow::updateClipboard()
{
QStringList formats = clipboard->mimeData()->formats();
QByteArray data = clipboard->mimeData()->data(format);
mimeTypeCombo->clear();
mimeTypeCombo->insertStringList(formats);
int size = clipboard->mimeData()->data(formats[0]).size();
QListWidgetItem *newItem = new QListWidgetItem(previousItems);
newItem->setText(tr("%1 (%2 bytes)").arg(formats[0]).arg(size));
updateData(formats[0]);
}
void ClipWindow::updateData(const QString &format)
{
QByteArray data = clipboard->mimeData()->data(format);
dataInfoLabel->setText(tr("%1 bytes").arg(data.size()));
}
#include <QApplication>
#include "clipwindow.h"
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
ClipWindow *window = new ClipWindow;
window->resize(640, 480);
window->show();
return app.exec();
}
]]>