AddressBar.cpp Example File

 /****************************************************************************
 **
 ** Copyright (C) 2015 The Qt Company Ltd.
 ** Contact: http://www.qt.io/licensing/
 **
 ** This file is part of the demos of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** Commercial License Usage
 ** Licensees holding valid commercial Qt licenses may use this file in
 ** accordance with the commercial license agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and The Qt Company. For licensing terms
 ** and conditions see http://www.qt.io/terms-conditions. For further
 ** information use the contact form at http://www.qt.io/contact-us.
 **
 ** GNU Lesser General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU Lesser
 ** General Public License version 2.1 or version 3 as published by the Free
 ** Software Foundation and appearing in the file LICENSE.LGPLv21 and
 ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
 ** following information to ensure the GNU Lesser General Public License
 ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
 **
 ** As a special exception, The Qt Company gives you certain additional
 ** rights. These rights are described in The Qt Company LGPL Exception
 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
 **
 ** GNU General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU
 ** General Public License version 3.0 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.GPL included in the
 ** packaging of this file.  Please review the following information to
 ** ensure the GNU General Public License version 3.0 requirements will be
 ** met: http://www.gnu.org/copyleft/gpl.html.
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #include "AddressBar.h"

 #include <QtCore>
 #include <QtGui>

 AddressBar::AddressBar(QWidget *parent)
     : QWidget(parent)
 {
     m_lineEdit = new QLineEdit(parent);
     m_lineEdit->setPlaceholderText("Enter address or search terms");
     connect(m_lineEdit, SIGNAL(returnPressed()), SLOT(processAddress()));
     m_toolButton = new QToolButton(parent);
     m_toolButton->setText("Go");
     connect(m_toolButton, SIGNAL(clicked()), SLOT(processAddress()));
 }

 QSize AddressBar::sizeHint() const
 {
     return m_lineEdit->sizeHint();
 }

 void AddressBar::processAddress()
 {
     if (!m_lineEdit->text().isEmpty())
         emit addressEntered(m_lineEdit->text());
 }

 void AddressBar::resizeEvent(QResizeEvent *event)
 {
     int x, y, w, h;

     m_toolButton->adjustSize();
     x = width() - m_toolButton->width();
     y = 0;
     w = m_toolButton->width();
     h = height() - 1;
     m_toolButton->setGeometry(x, y, w, h);
     m_toolButton->show();

     x = 0;
     y = 0;
     w = width() - m_toolButton->width();
     h = height() - 1;
     m_lineEdit->setGeometry(x, y, w, h);
     m_lineEdit->show();
 }

 void AddressBar::focusInEvent(QFocusEvent *event)
 {
     m_lineEdit->setFocus();
     QWidget::focusInEvent(event);
 }