fetching each char entered in Qtextedit??

[rajesh]

Hi Shuchi,

Do the following:

in header file
protected:
bool eventFilter(QObject *target, QEvent *event);
private:
QTextEdit * m_pTxBox;
 
in cpp file:
in constructor:
    m_pTxBox->installEventFilter(this);
 
 
bool myWindow::eventFilter(QObject *target, QEvent *event)
{
     if (target == m_pTxBox) 
    {
          if (event->type() == QEvent::KeyPress)
          {
                QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event);
                 std::string str = keyEvent->text().toStdString();
                char ch = str[0];
                emit keyPressed(ch);     // emit signal keyPressed with char entered
           }
      }
      return QWidget::eventFilter(target, event);
}

in header file
protected:
bool eventFilter(QObject *target, QEvent *event);
private:
QTextEdit * m_pTxBox;
 
in cpp file:
in constructor:
    m_pTxBox->installEventFilter(this);
 
 
bool myWindow::eventFilter(QObject *target, QEvent *event)
{
     if (target == m_pTxBox) 
    {
          if (event->type() == QEvent::KeyPress)
          {
                QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event);
                 std::string str = keyEvent->text().toStdString();
                char ch = str[0];
                emit keyPressed(ch);     // emit signal keyPressed with char entered
           }
      }
      return QWidget::eventFilter(target, event);
}

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or you can make your own class like:

class TextEdit : public QTextEdit
{
protected:
void keyPressEvent(QKeyEvent *event);
signals:
void keyPressed(int);
...
}
 
void TextEdit::keyPressEvent(QKeyEvent *event)
{
       std::string str = event->text().toStdString();
        int ch = str[0];
        emit keyPressed(ch);
 
       QTextEdit::keyPressEvent(event);
}

class TextEdit : public QTextEdit
{
protected:
void keyPressEvent(QKeyEvent *event);
signals:
void keyPressed(int);
...
}
 
void TextEdit::keyPressEvent(QKeyEvent *event)
{
       std::string str = event->text().toStdString();
        int ch = str[0];
        emit keyPressed(ch);
 
       QTextEdit::keyPressEvent(event);
}

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