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

    #include <QtGui>

    #include "window.h"

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

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

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

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

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

        validatorLineEdit = new QLineEdit(validatorGroup);

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

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

        alignmentLineEdit = new QLineEdit(alignmentGroup);

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

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

        inputMaskLineEdit = new QLineEdit(inputMaskGroup);

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

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

        accessLineEdit = new QLineEdit(accessGroup);

        connect(echoComboBox, SIGNAL(activated(int)),
                this, SLOT(slotEchoChanged(int)));
        connect(validatorComboBox, SIGNAL(activated(int)),
                this, SLOT(slotValidatorChanged(int)));
        connect(alignmentComboBox, SIGNAL(activated(int)),
                this, SLOT(slotAlignmentChanged(int)));
        connect(inputMaskComboBox, SIGNAL(activated(int)),
                this, SLOT(slotInputMaskChanged(int)));
        connect(accessComboBox, SIGNAL(activated(int)),
                this, SLOT(slotAccessChanged(int)));

        QGridLayout *echoLayout = new QGridLayout(echoGroup);
        echoLayout->addWidget(echoLabel, 0, 0);
        echoLayout->addWidget(echoComboBox, 0, 1);
        echoLayout->addWidget(echoLineEdit, 1, 0, 1, 2);

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

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

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

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

        QVBoxLayout *layout = new QVBoxLayout(this);
        layout->addWidget(echoGroup);
        layout->addWidget(validatorGroup);
        layout->addWidget(alignmentGroup);
        layout->addWidget(inputMaskGroup);
        layout->addWidget(accessGroup);

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

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

    void Window::slotValidatorChanged(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));
                break;
        }

        validatorLineEdit->setText("");
    }

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

    void Window::slotInputMaskChanged(int index)
    {
        switch (index) {
            case 0:
                inputMaskLineEdit->setInputMask(QString::null);
                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;#");
                break;
        }
    }

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


Copyright © 2005 Trolltech Trademarks
Qt 4.0.0-b2