Home · All Classes · All Functions · Overviews

AddressBar.cpp Example File
demos/embedded/anomaly/src/AddressBar.cpp

 /****************************************************************************
 **
 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
 ** This file is part of the demos of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** Commercial Usage
 ** Licensees holding valid Qt Commercial licenses may use this file in
 ** accordance with the Qt Commercial License Agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and Nokia.
 **
 ** 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 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.LGPL included in the
 ** packaging of this file.  Please review the following information to
 ** ensure the GNU Lesser General Public License version 2.1 requirements
 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
 **
 ** In addition, as a special exception, Nokia gives you certain additional
 ** rights.  These rights are described in the Nokia Qt 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.
 **
 ** If you have questions regarding the use of this file, please contact
 ** Nokia at qt-info@nokia.com.
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #include "AddressBar.h"

 #include <QtCore>
 #include <QtGui>

 class LineEdit: public QLineEdit
 {
 public:
     LineEdit(QWidget *parent = 0): QLineEdit(parent) {}

     void paintEvent(QPaintEvent *event) {
         QLineEdit::paintEvent(event);
         if (text().isEmpty()) {
             QPainter p(this);
             int flags = Qt::AlignLeft | Qt::AlignVCenter;
             p.setPen(palette().color(QPalette::Disabled, QPalette::Text));
             p.drawText(rect().adjusted(10, 0, 0, 0), flags, "Enter address or search terms");
             p.end();
         }
     }
 };

 AddressBar::AddressBar(QWidget *parent)
     : QWidget(parent)
 {
     m_lineEdit = new LineEdit(parent);
     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);
 }