Focus rect not drawing

[draftpunk]

Hello,

I'm trying to change focus from a QLineEdit to a QPushButton, using ui.myButton->setFocus() inside an event filter, but when I do so, the button's focus rectangle does not draw. I know that the button has the focus, because if I hit Return, the program acts as if the button was clicked.

If I use the tab key to change focus, then the button's focus rect is drawn correctly.

So, why doesn't the focus rect draw if I use setFocus()? (I tried using releaseKeyboard() from the QLineEdit, but that didn't help.)

Any help would be greatly appreciated.

Thanks!

[caduel]

Have you subclassed (ie modified) those widgets?
What events are you filtering?

Please give us some code.

[draftpunk]

None of the controls are subclassed. Here is the code of my event filter. Sorry for the excessive length.

bool AccessCodePane::eventFilter(QObject* target, QEvent* event)
{
	if (target == ui.accessCodeEdit)
	{
		if (event->type() == QEvent::KeyPress)
		{
			// From Access Code dialog: left key access as a backspace
			QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);
 
			if (keyEvent->key() == Qt::Key_Left)
			{
				// Left arrow acts as a backspace key
				ui.accessCodeEdit->backspace();
				return true;		// Event stops here
			}
			else if (keyEvent->key() == Qt::Key_Down || keyEvent->key() == Qt::Key_Up)
			{
				// If user hits the up or down button, set focus to the OK button
				ui.okButton->setFocus();
				return true;		// Event stops here
			}
		}
	}
	else if (target == ui.exitButton)
	{
		if (event->type() == QEvent::KeyPress)
		{
			QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);
 
			if (keyEvent->key() == Qt::Key_Down || keyEvent->key() == Qt::Key_Up)
			{
				// If user hits the up or down button, set focus to the access code line edit control
				ui.accessCodeEdit->setFocus();
				return true;		// Event stops here
			}
			else if (keyEvent->key() == Qt::Key_Left || keyEvent->key() == Qt::Key_Right)
			{
				// Left/right button toggle between OK and Cancel
				ui.okButton->setFocus();
				return true;
			}
			else if (keyEvent->key() == Qt::Key_Return || keyEvent->key() == Qt::Key_Enter)
			{
				ui.exitButton->click();
				return true;
			}
		}
	}
	else if (target == ui.okButton)
	{
		if (event->type() == QEvent::KeyPress)
		{
			QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);
 
			if (keyEvent->key() == Qt::Key_Down || keyEvent->key() == Qt::Key_Up)
			{
				// If user hits the up or down button, set focus to the access code line edit control
				ui.accessCodeEdit->setFocus();
				return true;		// Event stops here
			}
			else if (keyEvent->key() == Qt::Key_Left || keyEvent->key() == Qt::Key_Right)
			{
				// Left/right button toggle between OK and Cancel
				ui.exitButton->setFocus();
				return true;
			}
			else if (keyEvent->key() == Qt::Key_Return || keyEvent->key() == Qt::Key_Enter)
			{
				ui.okButton->click();		// Clicking OK is same as pressing Return in edit control
				return true;
			}
		}
	}
 
	return false;	// Pass event up the chain
}

bool AccessCodePane::eventFilter(QObject* target, QEvent* event)
{
	if (target == ui.accessCodeEdit)
	{
		if (event->type() == QEvent::KeyPress)
		{
			// From Access Code dialog: left key access as a backspace
			QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);

			if (keyEvent->key() == Qt::Key_Left)
			{
				// Left arrow acts as a backspace key
				ui.accessCodeEdit->backspace();
				return true;		// Event stops here
			}
			else if (keyEvent->key() == Qt::Key_Down || keyEvent->key() == Qt::Key_Up)
			{
				// If user hits the up or down button, set focus to the OK button
				ui.okButton->setFocus();
				return true;		// Event stops here
			}
		}
	}
	else if (target == ui.exitButton)
	{
		if (event->type() == QEvent::KeyPress)
		{
			QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);

			if (keyEvent->key() == Qt::Key_Down || keyEvent->key() == Qt::Key_Up)
			{
				// If user hits the up or down button, set focus to the access code line edit control
				ui.accessCodeEdit->setFocus();
				return true;		// Event stops here
			}
			else if (keyEvent->key() == Qt::Key_Left || keyEvent->key() == Qt::Key_Right)
			{
				// Left/right button toggle between OK and Cancel
				ui.okButton->setFocus();
				return true;
			}
			else if (keyEvent->key() == Qt::Key_Return || keyEvent->key() == Qt::Key_Enter)
			{
				ui.exitButton->click();
				return true;
			}
		}
	}
	else if (target == ui.okButton)
	{
		if (event->type() == QEvent::KeyPress)
		{
			QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);

			if (keyEvent->key() == Qt::Key_Down || keyEvent->key() == Qt::Key_Up)
			{
				// If user hits the up or down button, set focus to the access code line edit control
				ui.accessCodeEdit->setFocus();
				return true;		// Event stops here
			}
			else if (keyEvent->key() == Qt::Key_Left || keyEvent->key() == Qt::Key_Right)
			{
				// Left/right button toggle between OK and Cancel
				ui.exitButton->setFocus();
				return true;
			}
			else if (keyEvent->key() == Qt::Key_Return || keyEvent->key() == Qt::Key_Enter)
			{
				ui.okButton->click();		// Clicking OK is same as pressing Return in edit control
				return true;
			}
		}
	}

	return false;	// Pass event up the chain
}

To copy to clipboard, switch view to plain text mode 

[draftpunk]

I just figured it out.

Using:

setFocus(Qt::TabFocusReason);

setFocus(Qt::TabFocusReason);

To copy to clipboard, switch view to plain text mode 

instead of just

setFocus();

setFocus();

To copy to clipboard, switch view to plain text mode 

fixed the problem.