Qt:Документация 4.3.2/tools-codecs-previewform-cpp
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[править] previewform.cpp Example File
tools/codecs/previewform.cpp
/**************************************************************************** ** ** Copyright (C) 2004-2007 Trolltech ASA. All rights reserved. ** ** This file is part of the example classes of the Qt Toolkit. ** ** This file may be used under the terms of the GNU General Public ** License version 2.0 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 GNU ** General Public Licensing requirements will be met: ** http://trolltech.com/products/qt/licenses/licensing/opensource/ ** ** If you are unsure which license is appropriate for your use, please ** review the following information: ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview ** or contact the sales department at sales@trolltech.com. ** ** In addition, as a special exception, Trolltech gives you certain ** additional rights. These rights are described in the Trolltech GPL ** Exception version 1.0, which can be found at ** http://www.trolltech.com/products/qt/gplexception/ and in the file ** GPL_EXCEPTION.txt in this package. ** ** In addition, as a special exception, Trolltech, as the sole copyright ** holder for Qt Designer, grants users of the Qt/Eclipse Integration ** plug-in the right for the Qt/Eclipse Integration to link to ** functionality provided by Qt Designer and its related libraries. ** ** Trolltech reserves all rights not expressly granted herein. ** ** Trolltech ASA (c) 2007 ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ****************************************************************************/ #include <QtGui> #include "previewform.h" PreviewForm::PreviewForm(QWidget *parent) : QDialog(parent) { encodingComboBox = new QComboBox; encodingLabel = new QLabel(tr("&Encoding:")); encodingLabel->setBuddy(encodingComboBox); textEdit = new QTextEdit; textEdit->setLineWrapMode(QTextEdit::NoWrap); textEdit->setReadOnly(true); buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel); connect(encodingComboBox, SIGNAL(activated(int)), this, SLOT(updateTextEdit())); connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept())); connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject())); QGridLayout *mainLayout = new QGridLayout; mainLayout->addWidget(encodingLabel, 0, 0); mainLayout->addWidget(encodingComboBox, 0, 1); mainLayout->addWidget(textEdit, 1, 0, 1, 2); mainLayout->addWidget(buttonBox, 2, 0, 1, 2); setLayout(mainLayout); setWindowTitle(tr("Choose Encoding")); resize(400, 300); } void PreviewForm::setCodecList(const QList<QTextCodec *> &list) { encodingComboBox->clear(); foreach (QTextCodec *codec, list) encodingComboBox->addItem(codec->name(), codec->mibEnum()); } void PreviewForm::setEncodedData(const QByteArray &data) { encodedData = data; updateTextEdit(); } void PreviewForm::updateTextEdit() { int mib = encodingComboBox->itemData( encodingComboBox->currentIndex()).toInt(); QTextCodec *codec = QTextCodec::codecForMib(mib); QTextStream in(&encodedData); in.setAutoDetectUnicode(false); in.setCodec(codec); decodedStr = in.readAll(); textEdit->setPlainText(decodedStr); }
Copyright © 2007 Trolltech | Trademarks | Qt 4.3.2
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