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# window.cpp Example File
widgets/lineedits/window.cpp

     /****************************************************************************
     **
     ** Copyright (C) 2004-$THISYEAR$ $TROLLTECH$. All rights reserved.
     **
     ** This file is part of the $MODULE$ of the Qt Toolkit.
     **
     ** $TROLLTECH_DUAL_LICENSE$
     **
     ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
     ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
     **
     ****************************************************************************/

     #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, 0, 0);
         echoLayout->addWidget(echoComboBox, 0, 1);
         echoLayout->addWidget(echoLineEdit, 1, 0, 1, 2);
         echoGroup->setLayout(echoLayout);

         QGridLayout *validatorLayout = new QGridLayout;
         validatorLayout->addWidget(validatorLabel, 0, 0);
         validatorLayout->addWidget(validatorComboBox, 0, 1);
         validatorLayout->addWidget(validatorLineEdit, 1, 0, 1, 2);
         validatorGroup->setLayout(validatorLayout);

         QGridLayout *alignmentLayout = new QGridLayout;
         alignmentLayout->addWidget(alignmentLabel, 0, 0);
         alignmentLayout->addWidget(alignmentComboBox, 0, 1);
         alignmentLayout->addWidget(alignmentLineEdit, 1, 0, 1, 2);
         alignmentGroup-> setLayout(alignmentLayout);

         QGridLayout *inputMaskLayout = new QGridLayout;
         inputMaskLayout->addWidget(inputMaskLabel, 0, 0);
         inputMaskLayout->addWidget(inputMaskComboBox, 0, 1);
         inputMaskLayout->addWidget(inputMaskLineEdit, 1, 0, 1, 2);
         inputMaskGroup->setLayout(inputMaskLayout);

         QGridLayout *accessLayout = new QGridLayout;
         accessLayout->addWidget(accessLabel, 0, 0);
         accessLayout->addWidget(accessComboBox, 0, 1);
         accessLayout->addWidget(accessLineEdit, 1, 0, 1, 2);
         accessGroup->setLayout(accessLayout);

         QGridLayout *layout = new QGridLayout;
         layout->addWidget(echoGroup, 0, 0);
         layout->addWidget(validatorGroup, 1, 0);
         layout->addWidget(alignmentGroup, 2, 0);
         layout->addWidget(inputMaskGroup, 0, 1);
         layout->addWidget(accessGroup, 1, 1);
         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,
                 999.0, 2, 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);
         }
     }