FilterTextEdit.hpp

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#ifndef FILTERTEXTEDIT_H
#define FILTERTEXTEDIT_H
#include <QTextEdit>
#include <QRegExp>
#include "ers/ers.hpp"
namespace daq {
namespace QTUtils {
 
class FilterTextEdit: public QTextEdit {
Q_OBJECT
public:
    FilterTextEdit(QWidget* parent):QTextEdit(parent),m_invert(false)  {
        ;
    }
    virtual ~FilterTextEdit() {
        ;
    }
    void append(const QString& text) {
        m_original.append(text);
        if (text.contains(m_filter)) {
            QTextEdit::append(text);
        }
    }
    void setPlainText(const QString& text) {
        m_original= text;
        filterAndSet(text);
    }
 
    void setFilter(const QString& filter) {
        m_filter= filter;
        this->filterAndSet(m_original);
    }
    void setInversion(bool invert) {
        m_invert= invert;
    }
 
private slots:
    void clear(){
        m_original = "";
        QTextEdit::clear();
    }
private:
    void filterAndSet(const QString &text) {
        if (m_filter != "") {
            QStringList strings= text.split("\n");
            if (!m_invert) {
                strings= strings.filter(m_filter);
            } else {
                QStringList result;
                foreach(QString str, strings) {
                        if (!str.contains(m_filter)) {
                            result+= str;
                        }
                    }
                strings = result;
            }
            QString filtered= strings.join("\n");
            QTextEdit::setPlainText(filtered);
        } else {
            QTextEdit::setPlainText(text);
        }
    }
 
    QString m_filter;
    QString m_original; 
    bool m_invert; 
};
}
}
#endif