13 files changed, 558 insertions, 0 deletions
diff --git a/examples/tools/codecs/codecs.pro b/examples/tools/codecs/codecs.pro
new file mode 100644
index 0000000..6ae225a
--- /dev/null
+++ b/examples/tools/codecs/codecs.pro
@@ -0,0 +1,11 @@
+HEADERS      += mainwindow.h \
+                previewform.h
+SOURCES      += main.cpp \
+                mainwindow.cpp \
+                previewform.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/tools/codecs
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS encodedfiles codecs.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/tools/codecs
+INSTALLS += target sources
diff --git a/examples/tools/codecs/encodedfiles/.gitattributes b/examples/tools/codecs/encodedfiles/.gitattributes
new file mode 100644
index 0000000..996aab2
--- /dev/null
+++ b/examples/tools/codecs/encodedfiles/.gitattributes
@@ -0,0 +1,2 @@
+iso-8859-15.txt -crlf
+iso-8859-1.txt -crlf
diff --git a/examples/tools/codecs/encodedfiles/iso-8859-1.txt b/examples/tools/codecs/encodedfiles/iso-8859-1.txt
new file mode 100644
index 0000000..4a7ebe3
--- /dev/null
+++ b/examples/tools/codecs/encodedfiles/iso-8859-1.txt
@@ -0,0 +1,6 @@
+Paulo Coelho: O Gênio e as Rosas
+Anna Hallström, Urban Östberg: Svår svenska
+Darrell Huff: How to Lie with Statistics
+Franz Kafka: Das Schloß
+Walter Moers: Die 13½ Leben des Käpt'n Blaubär
+Dag Solstad: Forsøk på å beskrive det ugjennomtrengelige
diff --git a/examples/tools/codecs/encodedfiles/iso-8859-15.txt b/examples/tools/codecs/encodedfiles/iso-8859-15.txt
new file mode 100644
index 0000000..cd43ea3
--- /dev/null
+++ b/examples/tools/codecs/encodedfiles/iso-8859-15.txt
@@ -0,0 +1,8 @@
+Paulo Coelho: O Gênio e as Rosas
+Jean-Pierre Coffe: À table en famille avec 15 ¤ par jour
+Anna Hallström, Urban Östberg: Svår svenska
+Darrell Huff: How to Lie with Statistics
+Franz Kafka: Das Schloß
+Helena Lehecková: T¨ekkiä suomalaisille
+Arthur Rimbaud: ¼uvres complètes
+Dag Solstad: Forsøk på å beskrive det ugjennomtrengelige
diff --git a/examples/tools/codecs/encodedfiles/utf-16.txt b/examples/tools/codecs/encodedfiles/utf-16.txt
new file mode 100644
index 0000000..371f06f
--- /dev/null
+++ b/examples/tools/codecs/encodedfiles/utf-16.txt
diff --git a/examples/tools/codecs/encodedfiles/utf-16be.txt b/examples/tools/codecs/encodedfiles/utf-16be.txt
new file mode 100644
index 0000000..d8ae642
--- /dev/null
+++ b/examples/tools/codecs/encodedfiles/utf-16be.txt
diff --git a/examples/tools/codecs/encodedfiles/utf-16le.txt b/examples/tools/codecs/encodedfiles/utf-16le.txt
new file mode 100644
index 0000000..3779264
--- /dev/null
+++ b/examples/tools/codecs/encodedfiles/utf-16le.txt
diff --git a/examples/tools/codecs/encodedfiles/utf-8.txt b/examples/tools/codecs/encodedfiles/utf-8.txt
new file mode 100644
index 0000000..a5e4ae6f
--- /dev/null
+++ b/examples/tools/codecs/encodedfiles/utf-8.txt
@@ -0,0 +1,6 @@
+SprÃ¥k: Norsk
+Î“Î»ÏŽÏƒÏƒÎ±: Î•Î»Î»Î·Î½Î¹ÎºÎ¬
+Ð¯Ð·Ñ‹Ðº: Ð ÑƒÑÑÐºÐ¸Ð¹
+ì–¸ì–´ : í•œêµì–´
+è¨€èªž: æ—¥æœ¬èªž
+Langage : FranÃ§ais
diff --git a/examples/tools/codecs/main.cpp b/examples/tools/codecs/main.cpp
new file mode 100644
index 0000000..4856752
--- /dev/null
+++ b/examples/tools/codecs/main.cpp
@@ -0,0 +1,52 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, 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 are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+
+#include "mainwindow.h"
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+    MainWindow mainWin;
+    mainWin.show();
+    return app.exec();
+}
diff --git a/examples/tools/codecs/mainwindow.cpp b/examples/tools/codecs/mainwindow.cpp
new file mode 100644
index 0000000..1e6fa69
--- /dev/null
+++ b/examples/tools/codecs/mainwindow.cpp
@@ -0,0 +1,203 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, 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 are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include "mainwindow.h"
+#include "previewform.h"
+
+MainWindow::MainWindow()
+{
+    textEdit = new QTextEdit;
+    textEdit->setLineWrapMode(QTextEdit::NoWrap);
+    setCentralWidget(textEdit);
+
+    findCodecs();
+
+    previewForm = new PreviewForm(this);
+    previewForm->setCodecList(codecs);
+
+    createActions();
+    createMenus();
+
+    setWindowTitle(tr("Codecs"));
+    resize(500, 400);
+}
+
+void MainWindow::open()
+{
+    QString fileName = QFileDialog::getOpenFileName(this);
+    if (!fileName.isEmpty()) {
+        QFile file(fileName);
+        if (!file.open(QFile::ReadOnly)) {
+            QMessageBox::warning(this, tr("Codecs"),
+                                 tr("Cannot read file %1:\n%2")
+                                 .arg(fileName)
+                                 .arg(file.errorString()));
+            return;
+        }
+
+        QByteArray data = file.readAll();
+
+        previewForm->setEncodedData(data);
+        if (previewForm->exec())
+            textEdit->setPlainText(previewForm->decodedString());
+    }
+}
+
+void MainWindow::save()
+{
+    QString fileName = QFileDialog::getSaveFileName(this);
+    if (!fileName.isEmpty()) {
+        QFile file(fileName);
+        if (!file.open(QFile::WriteOnly | QFile::Text)) {
+            QMessageBox::warning(this, tr("Codecs"),
+                                 tr("Cannot write file %1:\n%2")
+                                 .arg(fileName)
+                                 .arg(file.errorString()));
+            return;
+        }
+
+        QAction *action = qobject_cast<QAction *>(sender());
+        QByteArray codecName = action->data().toByteArray();
+
+        QTextStream out(&file);
+        out.setCodec(codecName);
+        out << textEdit->toPlainText();
+    }
+}
+
+void MainWindow::about()
+{
+    QMessageBox::about(this, tr("About Codecs"),
+            tr("The <b>Codecs</b> example demonstrates how to read and write "
+               "files using various encodings."));
+}
+
+void MainWindow::aboutToShowSaveAsMenu()
+{
+    QString currentText = textEdit->toPlainText();
+
+    foreach (QAction *action, saveAsActs) {
+        QByteArray codecName = action->data().toByteArray();
+        QTextCodec *codec = QTextCodec::codecForName(codecName);
+        action->setVisible(codec && codec->canEncode(currentText));
+    }
+}
+
+void MainWindow::findCodecs()
+{
+    QMap<QString, QTextCodec *> codecMap;
+    QRegExp iso8859RegExp("ISO[- ]8859-([0-9]+).*");
+
+    foreach (int mib, QTextCodec::availableMibs()) {
+        QTextCodec *codec = QTextCodec::codecForMib(mib);
+
+        QString sortKey = codec->name().toUpper();
+        int rank;
+
+        if (sortKey.startsWith("UTF-8")) {
+            rank = 1;
+        } else if (sortKey.startsWith("UTF-16")) {
+            rank = 2;
+        } else if (iso8859RegExp.exactMatch(sortKey)) {
+            if (iso8859RegExp.cap(1).size() == 1)
+                rank = 3;
+            else
+                rank = 4;
+        } else {
+            rank = 5;
+        }
+        sortKey.prepend(QChar('0' + rank));
+
+        codecMap.insert(sortKey, codec);
+    }
+    codecs = codecMap.values();
+}
+
+void MainWindow::createActions()
+{
+    openAct = new QAction(tr("&Open..."), this);
+    openAct->setShortcut(tr("Ctrl+O"));
+    connect(openAct, SIGNAL(triggered()), this, SLOT(open()));
+
+    foreach (QTextCodec *codec, codecs) {
+        QString text = tr("%1...").arg(QString(codec->name()));
+
+        QAction *action = new QAction(text, this);
+	action->setData(codec->name());
+        connect(action, SIGNAL(triggered()), this, SLOT(save()));
+        saveAsActs.append(action);
+    }
+
+    exitAct = new QAction(tr("E&xit"), this);
+    exitAct->setShortcut(tr("Ctrl+Q"));
+    connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));
+
+    aboutAct = new QAction(tr("&About"), this);
+    connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));
+
+    aboutQtAct = new QAction(tr("About &Qt"), this);
+    connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
+}
+
+void MainWindow::createMenus()
+{
+    saveAsMenu = new QMenu(tr("&Save As"), this);
+    foreach (QAction *action, saveAsActs)
+        saveAsMenu->addAction(action);
+    connect(saveAsMenu, SIGNAL(aboutToShow()),
+            this, SLOT(aboutToShowSaveAsMenu()));
+
+    fileMenu = new QMenu(tr("&File"), this);
+    fileMenu->addAction(openAct);
+    fileMenu->addMenu(saveAsMenu);
+    fileMenu->addSeparator();
+    fileMenu->addAction(exitAct);
+
+    helpMenu = new QMenu(tr("&Help"), this);
+    helpMenu->addAction(aboutAct);
+    helpMenu->addAction(aboutQtAct);
+
+    menuBar()->addMenu(fileMenu);
+    menuBar()->addSeparator();
+    menuBar()->addMenu(helpMenu);
+}
diff --git a/examples/tools/codecs/mainwindow.h b/examples/tools/codecs/mainwindow.h
new file mode 100644
index 0000000..1702d5c
--- /dev/null
+++ b/examples/tools/codecs/mainwindow.h
@@ -0,0 +1,88 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, 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 are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QList>
+#include <QMainWindow>
+
+QT_BEGIN_NAMESPACE
+class QAction;
+class QMenu;
+class QTextCodec;
+class QTextEdit;
+QT_END_NAMESPACE
+class PreviewForm;
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    MainWindow();
+
+private slots:
+    void open();
+    void save();
+    void about();
+    void aboutToShowSaveAsMenu();
+
+private:
+    void findCodecs();
+    void createActions();
+    void createMenus();
+
+    QTextEdit *textEdit;
+    PreviewForm *previewForm;
+    QList<QTextCodec *> codecs;
+
+    QMenu *fileMenu;
+    QMenu *helpMenu;
+    QMenu *saveAsMenu;
+    QAction *openAct;
+    QList<QAction *> saveAsActs;
+    QAction *exitAct;
+    QAction *aboutAct;
+    QAction *aboutQtAct;
+};
+
+#endif
diff --git a/examples/tools/codecs/previewform.cpp b/examples/tools/codecs/previewform.cpp
new file mode 100644
index 0000000..cbe084f
--- /dev/null
+++ b/examples/tools/codecs/previewform.cpp
@@ -0,0 +1,102 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, 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 are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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);
+}
diff --git a/examples/tools/codecs/previewform.h b/examples/tools/codecs/previewform.h
new file mode 100644
index 0000000..130cb79
--- /dev/null
+++ b/examples/tools/codecs/previewform.h
@@ -0,0 +1,80 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, 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 are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef PREVIEWFORM_H
+#define PREVIEWFORM_H
+
+#include <QDialog>
+#include <QList>
+
+QT_BEGIN_NAMESPACE
+class QComboBox;
+class QDialogButtonBox;
+class QLabel;
+class QTextCodec;
+class QTextEdit;
+QT_END_NAMESPACE
+
+class PreviewForm : public QDialog
+{
+    Q_OBJECT
+
+public:
+    PreviewForm(QWidget *parent = 0);
+
+    void setCodecList(const QList<QTextCodec *> &list);
+    void setEncodedData(const QByteArray &data);
+    QString decodedString() const { return decodedStr; }
+
+private slots:
+    void updateTextEdit();
+
+private:
+    QByteArray encodedData;
+    QString decodedStr;
+
+    QComboBox *encodingComboBox;
+    QLabel *encodingLabel;
+    QTextEdit *textEdit;
+    QDialogButtonBox *buttonBox;
+};
+
+#endif