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C++ » Qt » QLineEditScreenshots 
Line editor
  

/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples 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.
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef WINDOW_H
#define WINDOW_H

#include <QWidget>

QT_BEGIN_NAMESPACE
class QComboBox;
class QLineEdit;
QT_END_NAMESPACE


class Window : public QWidget
{
    Q_OBJECT

public:
    Window();

public slots:
    void echoChanged(int);
    void validatorChanged(int);
    void alignmentChanged(int);
    void inputMaskChanged(int);
    void accessChanged(int);

private:
    QLineEdit *echoLineEdit;
    QLineEdit *validatorLineEdit;
    QLineEdit *alignmentLineEdit;
    QLineEdit *inputMaskLineEdit;
    QLineEdit *accessLineEdit;
};


#endif






#include <QtGui>

#include "window.h"


Window::Window()
{
    QGroupBox *echoGroup = new QGroupBox(tr("Echo"));

    QLabel *echoLabel = new QLabel(tr("Mode:"));
    QComboBox *echoComboBox = new QComboBox;
    echoComboBox->addItem(tr("Normal"));
    echoComboBox->addItem(tr("Password"));
    echoComboBox->addItem(tr("PasswordEchoOnEdit"));
    echoComboBox->addItem(tr("No Echo"));

    echoLineEdit = new QLineEdit;
    echoLineEdit->setFocus();



    QGroupBox *validatorGroup = new QGroupBox(tr("Validator"));

    QLabel *validatorLabel = new QLabel(tr("Type:"));
    QComboBox *validatorComboBox = new QComboBox;
    validatorComboBox->addItem(tr("No validator"));
    validatorComboBox->addItem(tr("Integer validator"));
    validatorComboBox->addItem(tr("Double validator"));

    validatorLineEdit = new QLineEdit;



    QGroupBox *alignmentGroup = new QGroupBox(tr("Alignment"));

    QLabel *alignmentLabel = new QLabel(tr("Type:"));
    QComboBox *alignmentComboBox = new QComboBox;
    alignmentComboBox->addItem(tr("Left"));
    alignmentComboBox->addItem(tr("Centered"));
    alignmentComboBox->addItem(tr("Right"));

    alignmentLineEdit = new QLineEdit;



    QGroupBox *inputMaskGroup = new QGroupBox(tr("Input mask"));

    QLabel *inputMaskLabel = new QLabel(tr("Type:"));
    QComboBox *inputMaskComboBox = new QComboBox;
    inputMaskComboBox->addItem(tr("No mask"));
    inputMaskComboBox->addItem(tr("Phone number"));
    inputMaskComboBox->addItem(tr("ISO date"));
    inputMaskComboBox->addItem(tr("License key"));

    inputMaskLineEdit = new QLineEdit;



    QGroupBox *accessGroup = new QGroupBox(tr("Access"));

    QLabel *accessLabel = new QLabel(tr("Read-only:"));
    QComboBox *accessComboBox = new QComboBox;
    accessComboBox->addItem(tr("False"));
    accessComboBox->addItem(tr("True"));

    accessLineEdit = new QLineEdit;



    connect(echoComboBox, SIGNAL(activated(int)),
            this, SLOT(echoChanged(int)));
    connect(validatorComboBox, SIGNAL(activated(int)),
            this, SLOT(validatorChanged(int)));
    connect(alignmentComboBox, SIGNAL(activated(int)),
            this, SLOT(alignmentChanged(int)));
    connect(inputMaskComboBox, SIGNAL(activated(int)),
            this, SLOT(inputMaskChanged(int)));
    connect(accessComboBox, SIGNAL(activated(int)),
            this, SLOT(accessChanged(int)));



    QGridLayout *echoLayout = new QGridLayout;
    echoLayout->addWidget(echoLabel, 00);
    echoLayout->addWidget(echoComboBox, 01);
    echoLayout->addWidget(echoLineEdit, 1012);
    echoGroup->setLayout(echoLayout);



    QGridLayout *validatorLayout = new QGridLayout;
    validatorLayout->addWidget(validatorLabel, 00);
    validatorLayout->addWidget(validatorComboBox, 01);
    validatorLayout->addWidget(validatorLineEdit, 1012);
    validatorGroup->setLayout(validatorLayout);

    QGridLayout *alignmentLayout = new QGridLayout;
    alignmentLayout->addWidget(alignmentLabel, 00);
    alignmentLayout->addWidget(alignmentComboBox, 01);
    alignmentLayout->addWidget(alignmentLineEdit, 1012);
    alignmentGroup-> setLayout(alignmentLayout);

    QGridLayout *inputMaskLayout = new QGridLayout;
    inputMaskLayout->addWidget(inputMaskLabel, 00);
    inputMaskLayout->addWidget(inputMaskComboBox, 01);
    inputMaskLayout->addWidget(inputMaskLineEdit, 1012);
    inputMaskGroup->setLayout(inputMaskLayout);

    QGridLayout *accessLayout = new QGridLayout;
    accessLayout->addWidget(accessLabel, 00);
    accessLayout->addWidget(accessComboBox, 01);
    accessLayout->addWidget(accessLineEdit, 1012);
    accessGroup->setLayout(accessLayout);



    QGridLayout *layout = new QGridLayout;
    layout->addWidget(echoGroup, 00);
    layout->addWidget(validatorGroup, 10);
    layout->addWidget(alignmentGroup, 20);
    layout->addWidget(inputMaskGroup, 01);
    layout->addWidget(accessGroup, 11);
    setLayout(layout);

    setWindowTitle(tr("Line Edits"));
}



void Window::echoChanged(int index)
{
    switch (index) {
    case 0:
        echoLineEdit->setEchoMode(QLineEdit::Normal);
        break;
    case 1:
        echoLineEdit->setEchoMode(QLineEdit::Password);
        break;
    case 2:
      echoLineEdit->setEchoMode(QLineEdit::PasswordEchoOnEdit);
        break;
    case 3:
        echoLineEdit->setEchoMode(QLineEdit::NoEcho);
    }
}



void Window::validatorChanged(int index)
{
    switch (index) {
    case 0:
        validatorLineEdit->setValidator(0);
        break;
    case 1:
        validatorLineEdit->setValidator(new QIntValidator(
            validatorLineEdit));
        break;
    case 2:
        validatorLineEdit->setValidator(new QDoubleValidator(-999.0,
            999.02, validatorLineEdit));
    }

    validatorLineEdit->clear();
}



void Window::alignmentChanged(int index)
{
    switch (index) {
    case 0:
        alignmentLineEdit->setAlignment(Qt::AlignLeft);
        break;
    case 1:
        alignmentLineEdit->setAlignment(Qt::AlignCenter);
        break;
    case 2:
      alignmentLineEdit->setAlignment(Qt::AlignRight);
    }
}



void Window::inputMaskChanged(int index)
{
    switch (index) {
    case 0:
        inputMaskLineEdit->setInputMask("");
        break;
    case 1:
        inputMaskLineEdit->setInputMask("+99 99 99 99 99;_");
        break;
    case 2:
        inputMaskLineEdit->setInputMask("0000-00-00");
        inputMaskLineEdit->setText("00000000");
        inputMaskLineEdit->setCursorPosition(0);
        break;
    case 3:
        inputMaskLineEdit->setInputMask(">AAAAA-AAAAA-AAAAA-AAAAA-AAAAA;#");
    }
}



void Window::accessChanged(int index)
{
    switch (index) {
    case 0:
        accessLineEdit->setReadOnly(false);
        break;
    case 1:
        accessLineEdit->setReadOnly(true);
    }
}







#include <QApplication>

#include "window.h"

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    Window window;
    window.show();
    return app.exec();
}

   
    
  
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