Я когда-то писал вот такую вещь:
C++ (Qt)
/********************************************************************
* Copyright (C) PanteR
*-------------------------------------------------------------------
*
* Panther Commander is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* Panther Commander is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Panther Commander; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*-------------------------------------------------------------------
* Project: Panther Commander
* Author: PanteR
* Contact: panter.dsd@gmail.com
*******************************************************************/
#ifndef PCSHORTCUTEDIT_H
#define PCSHORTCUTEDIT_H
#include <QtGui/QLineEdit>
class PCShortcutEdit : public QLineEdit
{
Q_OBJECT
public:
PCShortcutEdit(QWidget *parent = 0);
virtual ~PCShortcutEdit() {}
void setShortcut(const QKeySequence& ks);
QKeySequence shortcut();
protected:
bool event(QEvent *e);
private:
void handleKeyEvent(QKeyEvent *e);
int translateModifiers(Qt::KeyboardModifiers state, const QString &text);
private:
int m_key[4], m_keyNum;
private Q_SLOTS:
void textChange(const QString& text);
};
#endif // PCSHORTCUTEDIT_H
C++ (Qt)
/********************************************************************
* Copyright (C) PanteR
*-------------------------------------------------------------------
*
* Panther Commander is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* Panther Commander is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Panther Commander; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*-------------------------------------------------------------------
* Project: Panther Commander
* Author: PanteR
* Contact: panter.dsd@gmail.com
*******************************************************************/
#include <QtCore/QEvent>
#include <QtGui/QKeyEvent>
#include "pcshortcutedit.h"
PCShortcutEdit::PCShortcutEdit(QWidget *parent)
:QLineEdit(parent)
{
m_keyNum = m_key[0] = m_key[1] = m_key[2] = m_key[3] = 0;
connect(this, SIGNAL(textChanged(QString)),
this, SLOT(textChange(QString)));
}
bool PCShortcutEdit::event(QEvent *e)
{
if ( e->type() == QEvent::KeyPress ) {
QKeyEvent *k = static_cast<QKeyEvent*>(e);
handleKeyEvent(k);
return true;
}
if ( e->type() == QEvent::Shortcut ||
e->type() == QEvent::ShortcutOverride ||
e->type() == QEvent::KeyRelease )
return true;
return QLineEdit::event(e);
}
void PCShortcutEdit::handleKeyEvent(QKeyEvent *e)
{
int nextKey = e->key();
if ( m_keyNum > 3 ||
nextKey == Qt::Key_Control ||
nextKey == Qt::Key_Shift ||
nextKey == Qt::Key_Meta ||
nextKey == Qt::Key_Alt )
return;
nextKey |= translateModifiers(e->modifiers(), e->text());
switch (m_keyNum) {
case 0:
m_key[0] = nextKey;
break;
case 1:
m_key[1] = nextKey;
break;
case 2:
m_key[2] = nextKey;
break;
case 3:
m_key[3] = nextKey;
break;
default:
break;
}
m_keyNum++;
QKeySequence ks(m_key[0], m_key[1], m_key[2], m_key[3]);
setText(ks);
e->accept();
}
int PCShortcutEdit::translateModifiers(Qt::KeyboardModifiers state,
const QString &text)
{
int result = 0;
// The shift modifier only counts when it is not used to type a symbol
// that is only reachable using the shift key anyway
if ((state & Qt::ShiftModifier) && (text.size() == 0
|| !text.at(0).isPrint()
|| text.at(0).isLetter()
|| text.at(0).isSpace()))
result |= Qt::SHIFT;
if (state & Qt::ControlModifier)
result |= Qt::CTRL;
if (state & Qt::MetaModifier)
result |= Qt::META;
if (state & Qt::AltModifier)
result |= Qt::ALT;
return result;
}
void PCShortcutEdit::setShortcut(const QKeySequence& ks)
{
m_keyNum = ks.count();
for (int i = 0; i < m_keyNum; ++i) {
m_key[i] = ks[i];
}
this->setText(ks);
}
QKeySequence PCShortcutEdit::shortcut()
{
return QKeySequence::fromString(text());
}
void PCShortcutEdit::textChange(const QString& text)
{
if (text.isEmpty())
m_keyNum = m_key[0] = m_key[1] = m_key[2] = m_key[3] = 0;
}
Посмотри, может чего полезного увидишь. Кстати, многоуровневые шорткаты у меня поддерживаются.
