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previewform.h Example File
tools/codecs/previewform.h

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    #ifndef PREVIEWFORM_H
    #define PREVIEWFORM_H

    #include <QDialog>
    #include <QList>

    class QComboBox;
    class QLabel;
    class QPushButton;
    class QTextCodec;
    class QTextEdit;

    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;
        QPushButton *okButton;
        QPushButton *cancelButton;
    };

    #endif


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Qt 4.0.0-rc1