/****************************************************************************

**

** 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 examples of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:BSD$

** You may use this file under the terms of the BSD license as follows:

**

** "Redistribution and use in source and binary forms, with or without

** modification, are permitted provided that the following conditions are

** met:

**   * Redistributions of source code must retain the above copyright

**     notice, this list of conditions and the following disclaimer.

**   * Redistributions in binary form must reproduce the above copyright

**     notice, this list of conditions and the following disclaimer in

**     the documentation and/or other materials provided with the

**     distribution.

**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor

**     the names of its contributors may be used to endorse or promote

**     products derived from this software without specific prior written

**     permission.

**

** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."

** $QT_END_LICENSE$

**

****************************************************************************/

#include <qdebug.h>

#include <QApplication>

#include <QLineEdit>

#include <QValidator>

#include "ui_validators.h"

class ValidatorWidget : public QWidget, public Ui::ValidatorsForm

{

    Q_OBJECT

public:

    ValidatorWidget(QWidget *parent = 0);

private slots:

    void updateValidator();

    void updateDoubleValidator();

    void _setLocale(const QLocale &l) { setLocale(l); updateValidator(); updateDoubleValidator(); }

private:

    QIntValidator *validator;

    QDoubleValidator *doubleValidator;

};

ValidatorWidget::ValidatorWidget(QWidget *parent)

    : QWidget(parent)

{

    setupUi(this);

    connect(localeSelector, SIGNAL(localeSelected(QLocale)), this, SLOT(_setLocale(QLocale)));

    connect(minVal, SIGNAL(editingFinished()), this, SLOT(updateValidator()));

    connect(maxVal, SIGNAL(editingFinished()), this, SLOT(updateValidator()));

    connect(editor, SIGNAL(editingFinished()), ledWidget, SLOT(flash()));

    connect(doubleMaxVal, SIGNAL(editingFinished()), this, SLOT(updateDoubleValidator()));

    connect(doubleMinVal, SIGNAL(editingFinished()), this, SLOT(updateDoubleValidator()));

    connect(doubleDecimals, SIGNAL(valueChanged(int)), this, SLOT(updateDoubleValidator()));

    connect(doubleFormat, SIGNAL(activated(int)), this, SLOT(updateDoubleValidator()));

    connect(doubleEditor, SIGNAL(editingFinished()), doubleLedWidget, SLOT(flash()));

    validator = 0;

    doubleValidator = 0;

    updateValidator();

    updateDoubleValidator();

};

void ValidatorWidget::updateValidator()

{

    QIntValidator *v = new QIntValidator(minVal->value(), maxVal->value(), this);

    v->setLocale(locale());

    editor->setValidator(v);

    delete validator;

    validator = v;

    QString s = editor->text();

    int i = 0;

    if (validator->validate(s, i) == QValidator::Invalid) {

        editor->clear();

    } else {

        editor->setText(s);

    }

}

void ValidatorWidget::updateDoubleValidator()

{

    QDoubleValidator *v

        = new QDoubleValidator(doubleMinVal->value(), doubleMaxVal->value(),

                                doubleDecimals->value(), this);

    v->setNotation(static_cast<QDoubleValidator::Notation>(doubleFormat->currentIndex()));

    v->setLocale(locale());

    doubleEditor->setValidator(v);

    delete doubleValidator;

    doubleValidator = v;

    QString s = doubleEditor->text();

    int i = 0;

    if (doubleValidator->validate(s, i) == QValidator::Invalid) {

        doubleEditor->clear();

    } else {

        doubleEditor->setText(s);

    }

}

int main(int argc, char **argv)

{

    Q_INIT_RESOURCE(validators);

    QApplication app(argc, argv);

    ValidatorWidget w;

    w.show();

    return app.exec();

}

#include "main.moc"