Catch a Key, like designer

[spirit]

minimal compilable example which reproduce your problem.

[aekilic]

lineDeNo->installEventFilter(this);
	lineMa->installEventFilter(this);

lineDeNo->installEventFilter(this);
	lineMa->installEventFilter(this);

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bool formAyarlar::eventFilter(QObject *o, QEvent *e)
	{
	    if (o == lineDeNo && e->type() == QEvent::KeyPress) {
	        const QKeyEvent *ke = static_cast<QKeyEvent *>(e);
	        const QKeySequence ks(ke->modifiers() + ke->key());
	        lineDeNo->setText(ks.toString(QKeySequence::NativeText));
	    }else if (o == lineMa && e->type() == QEvent::KeyPress) {
	        const QKeyEvent *ke = static_cast<QKeyEvent *>(e);
	        const QKeySequence ks(ke->modifiers() + ke->key());
	//        lineMa->setText(ks.toString());
	        lineMa->setText(ks.toString(QKeySequence::PortableText));
	    }
        }

bool formAyarlar::eventFilter(QObject *o, QEvent *e)
	{
	    if (o == lineDeNo && e->type() == QEvent::KeyPress) {
	        const QKeyEvent *ke = static_cast<QKeyEvent *>(e);
	        const QKeySequence ks(ke->modifiers() + ke->key());
	        lineDeNo->setText(ks.toString(QKeySequence::NativeText));
	    }else if (o == lineMa && e->type() == QEvent::KeyPress) {
	        const QKeyEvent *ke = static_cast<QKeyEvent *>(e);
	        const QKeySequence ks(ke->modifiers() + ke->key());
	//        lineMa->setText(ks.toString());
	        lineMa->setText(ks.toString(QKeySequence::PortableText));
	    }
        }

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[wysota]

This is not compilable A compilable example is something that includes a main() and the piece of code you want tested so that if one writes qmake && make it will compile.

And please don't start multiple threads on the same subject. Moving to newbie (again).

[spirit]

this how should look like "minimal compilable example"

#include <QtGui>
 
class TestWidget: public QWidget
{
	Q_OBJECT
 
public:
	TestWidget(QWidget *parent = 0)
		: QWidget(parent)
	{
		QVBoxLayout *vbl = new QVBoxLayout(this);
		m_lineEditNativeText = new QLineEdit();
		m_lineEditPortableText = new QLineEdit();
 
		m_lineEditNativeText->installEventFilter(this);
		m_lineEditPortableText->installEventFilter(this);
 
		vbl->addWidget(m_lineEditNativeText);
		vbl->addWidget(m_lineEditPortableText);
	}
 
protected:
	bool eventFilter(QObject *o, QEvent *e)
	{
		if (e->type() == QEvent::KeyPress) {
			const QKeyEvent *ke = static_cast<QKeyEvent *>(e);
			const QKeySequence ks(ke->modifiers() + ke->key());
			if (o == m_lineEditNativeText)
				m_lineEditNativeText->setText(ks.toString(QKeySequence::NativeText));
			else if (o == m_lineEditPortableText)
				m_lineEditPortableText->setText(ks.toString());
		}
		return QWidget::eventFilter(o, e);
	}
 
private:
	QLineEdit *m_lineEditNativeText;
	QLineEdit *m_lineEditPortableText;
};
 
int main(int argc, char **argv)
{
	QApplication app(argc, argv);
 
	TestWidget tw;
	tw.show();
 
	return app.exec();
}
 
#include "main.moc"

#include <QtGui>

class TestWidget: public QWidget
{
	Q_OBJECT

public:
	TestWidget(QWidget *parent = 0)
		: QWidget(parent)
	{
		QVBoxLayout *vbl = new QVBoxLayout(this);
		m_lineEditNativeText = new QLineEdit();
		m_lineEditPortableText = new QLineEdit();

		m_lineEditNativeText->installEventFilter(this);
		m_lineEditPortableText->installEventFilter(this);

		vbl->addWidget(m_lineEditNativeText);
		vbl->addWidget(m_lineEditPortableText);
	}

protected:
	bool eventFilter(QObject *o, QEvent *e)
	{
		if (e->type() == QEvent::KeyPress) {
			const QKeyEvent *ke = static_cast<QKeyEvent *>(e);
			const QKeySequence ks(ke->modifiers() + ke->key());
			if (o == m_lineEditNativeText)
				m_lineEditNativeText->setText(ks.toString(QKeySequence::NativeText));
			else if (o == m_lineEditPortableText)
				m_lineEditPortableText->setText(ks.toString());
		}
		return QWidget::eventFilter(o, e);
	}

private:
	QLineEdit *m_lineEditNativeText;
	QLineEdit *m_lineEditPortableText;
};

int main(int argc, char **argv)
{
	QApplication app(argc, argv);

	TestWidget tw;
	tw.show();

	return app.exec();
}

#include "main.moc"

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works fine, but symbol duplicated.

[spirit]

intresting thing, if modify my code in this way

if (o == m_lineEditNativeText) {
			m_lineEditNativeText->setText(ks.toString(QKeySequence::NativeText));
			m_lineEditPortableText->setText(ks.toString());
		}// else if (o == m_lineEditPortableText)
	//		m_lineEditPortableText->setText(ks.toString());

if (o == m_lineEditNativeText) {
			m_lineEditNativeText->setText(ks.toString(QKeySequence::NativeText));
			m_lineEditPortableText->setText(ks.toString());
		}// else if (o == m_lineEditPortableText)
	//		m_lineEditPortableText->setText(ks.toString());

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then a string in m_lineEditPortableText contains text without duplicating letter.

[spirit]

crap, it's my mistake, eventFilter should look like

bool eventFilter(QObject *o, QEvent *e)
{
	if (e->type() == QEvent::KeyPress) {
		const QKeyEvent *ke = static_cast<QKeyEvent *>(e);
		const QKeySequence ks(ke->modifiers() + ke->key());
		if (o == m_lineEditNativeText) {
			m_lineEditNativeText->setText(ks.toString(QKeySequence::NativeText));
			return true;
		} else if (o == m_lineEditPortableText) {
			m_lineEditPortableText->setText(ks.toString());
			return true;
		}
	}
	return QWidget::eventFilter(o, e);
}

bool eventFilter(QObject *o, QEvent *e)
{
	if (e->type() == QEvent::KeyPress) {
		const QKeyEvent *ke = static_cast<QKeyEvent *>(e);
		const QKeySequence ks(ke->modifiers() + ke->key());
		if (o == m_lineEditNativeText) {
			m_lineEditNativeText->setText(ks.toString(QKeySequence::NativeText));
			return true;
		} else if (o == m_lineEditPortableText) {
			m_lineEditPortableText->setText(ks.toString());
			return true;
		}
	}
	return QWidget::eventFilter(o, e);
}

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[aekilic]

Let me try

[aekilic]

yes works perfect thank you very much spirit you are my life saver!