Accessing QTextEdit

[LordQt]

Hello friends,

how can I access my QTexEdit from another class or from a Thread.

thr_startReadTrackFile = new readTrackFile(selectedFile, bodyEdit);
thr_startReadTrackFile->start();

thr_startReadTrackFile = new readTrackFile(selectedFile, bodyEdit);
thr_startReadTrackFile->start();

To copy to clipboard, switch view to plain text mode 

when I append a line to the TextEdit in my Thread I have an Error .....

my Thread declaration looks like

//**************************************************************************
class readTrackFile : public QThread
//**************************************************************************
{
	Q_OBJECT
	public:
		readTrackFile(const QString &p_inFile,
                      QTextEdit *p_bodyEditCopy,
                      QObject* parent = 0);
		virtual ~readTrackFile() { }
 
	public slots:
	protected:
        void run();
    private:
        QString qstr_inFile;
        QTextEdit*  bodyEditCopy;

//**************************************************************************
class readTrackFile : public QThread
//**************************************************************************
{
	Q_OBJECT
	public:
		readTrackFile(const QString &p_inFile,
                      QTextEdit *p_bodyEditCopy,
                      QObject* parent = 0);
		virtual ~readTrackFile() { }

	public slots:
	protected:
        void run();
    private:
        QString qstr_inFile;
        QTextEdit*  bodyEditCopy;

To copy to clipboard, switch view to plain text mode 

and in the implemantion

void readTrackFile::run()
{
...
 
    QFile inFile(qstr_inFile);
    QString qstr_textLine;
 
    if(inFile.exists() )
    {
        if (inFile.open(QFile::ReadOnly | QFile::Text) )
        {
            QTextStream filestream( &inFile );
 
            ...
            while (!filestream.atEnd())
            {
                qstr_textLine = filestream.readLine();
                if(qstr_textLine.count(";",Qt::CaseInsensitive)== 36)
                {
                    bodyEditCopy->append(qstr_textLine);
 
                   ...
                }
                else
                {
                    ...
                    ...
                    ...
                }
            }
        }
    }
    inFile.close();
}

void readTrackFile::run()
{
...

    QFile inFile(qstr_inFile);
    QString qstr_textLine;

    if(inFile.exists() )
    {
        if (inFile.open(QFile::ReadOnly | QFile::Text) )
        {
            QTextStream filestream( &inFile );

            ...
            while (!filestream.atEnd())
            {
                qstr_textLine = filestream.readLine();
                if(qstr_textLine.count(";",Qt::CaseInsensitive)== 36)
                {
                    bodyEditCopy->append(qstr_textLine);

                   ...
                }
                else
                {
                    ...
                    ...
                    ...
                }
            }
        }
    }
    inFile.close();
}

To copy to clipboard, switch view to plain text mode 

Could anybody see the misunderstanding from my side....

[The Storm]

You can not change the GUI from the Non-GUI thread, most of the time you will get crash if you do. Use signals and slots in order to update the GUI when something happens in to the thread.

[LordQt]

hmmm.... ok thx for your help my friend

cu