QmitkHotkeyLineEdit.cpp

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/*===================================================================

The Medical Imaging Interaction Toolkit (MITK)

Copyright (c) German Cancer Research Center,
Division of Medical and Biological Informatics.
All rights reserved.

This software is distributed WITHOUT ANY WARRANTY; without
even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE.

See LICENSE.txt or http://www.mitk.org for details.

===================================================================*/

#include "QmitkHotkeyLineEdit.h"

#include <QGridLayout>
#include <QKeyEvent>
#include <QLabel>
#include <QPushButton>

const std::string QmitkHotkeyLineEdit::TOOLTIP = "Press any key (combination)";

QmitkHotkeyLineEdit::QmitkHotkeyLineEdit(QWidget *parent) : QLineEdit(parent)
{
  this->Init();
}

QmitkHotkeyLineEdit::QmitkHotkeyLineEdit(const QKeySequence &_QKeySequence, QWidget *parent) : QLineEdit(parent)
{
  this->Init();
  this->SetKeySequence(_QKeySequence);
}

QmitkHotkeyLineEdit::QmitkHotkeyLineEdit(const QString &_QKeySequenceAsString, QWidget *parent) : QLineEdit(parent)
{
  this->Init();
  this->SetKeySequence(_QKeySequenceAsString);
}

void QmitkHotkeyLineEdit::Init()
{
  this->setToolTip(QString::fromStdString(QmitkHotkeyLineEdit::TOOLTIP));
  this->setReadOnly(true);
  connect(this, SIGNAL(textChanged(const QString &)), this, SLOT(LineEditTextChanged(const QString &)));
}

void QmitkHotkeyLineEdit::keyPressEvent(QKeyEvent *event)
{
  if (event->key() == Qt::Key_unknown)
    return;
  else if (event->key() == Qt::Key_Escape)
    m_KeySequence = QKeySequence();

  else
  {
    m_KeySequence = QKeySequence(event->modifiers(), event->key());
    // if no modifier was pressed the sequence is now empty
    if (event->modifiers() == Qt::NoModifier)
      m_KeySequence = QKeySequence(event->key());
  }

  this->SetKeySequence(m_KeySequence);
}

void QmitkHotkeyLineEdit::SetKeySequence(const QKeySequence &_QKeySequence)
{
  this->setText(_QKeySequence.toString());
}

void QmitkHotkeyLineEdit::SetKeySequence(const QString &_QKeySequenceAsString)
{
  this->SetKeySequence(QKeySequence(_QKeySequenceAsString));
}

QKeySequence QmitkHotkeyLineEdit::GetKeySequence()
{
  return m_KeySequence;
}

QString QmitkHotkeyLineEdit::GetKeySequenceAsString()
{
  return m_KeySequence.toString();
}

bool QmitkHotkeyLineEdit::Matches(QKeyEvent *event)
{
  QKeySequence _KeySequence = QKeySequence(event->modifiers(), event->key());
  // if no modifier was pressed the sequence is now empty
  if (event->modifiers() == Qt::NoModifier)
    _KeySequence = QKeySequence(event->key());

  return _KeySequence == m_KeySequence;
}

void QmitkHotkeyLineEdit::LineEditTextChanged(const QString &text)
{
  m_KeySequence = QKeySequence(text.toUpper());
}