window.cpp

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**
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#include <QtGui>

#include "window.h"

//! [0]
Window::Window()
{
    createPreviewGroupBox();
    createGeneralOptionsGroupBox();
    createDatesGroupBox();
    createTextFormatsGroupBox();

    QGridLayout *layout = new QGridLayout;
    layout->addWidget(previewGroupBox, 0, 0);
    layout->addWidget(generalOptionsGroupBox, 0, 1);
    layout->addWidget(datesGroupBox, 1, 0);
    layout->addWidget(textFormatsGroupBox, 1, 1);
    layout->setSizeConstraint(QLayout::SetFixedSize);
    setLayout(layout);

    previewLayout->setRowMinimumHeight(0, calendar->sizeHint().height());
    previewLayout->setColumnMinimumWidth(0, calendar->sizeHint().width());

    setWindowTitle(tr("Calendar Widget"));
}
//! [0]

void Window::localeChanged(int index)
{
    calendar->setLocale(localeCombo->itemData(index).toLocale());
}

//! [1]
void Window::firstDayChanged(int index)
{
    calendar->setFirstDayOfWeek(Qt::DayOfWeek(
                                firstDayCombo->itemData(index).toInt()));
}
//! [1]

void Window::selectionModeChanged(int index)
{
    calendar->setSelectionMode(QCalendarWidget::SelectionMode(
                               selectionModeCombo->itemData(index).toInt()));
}

void Window::horizontalHeaderChanged(int index)
{
    calendar->setHorizontalHeaderFormat(QCalendarWidget::HorizontalHeaderFormat(
        horizontalHeaderCombo->itemData(index).toInt()));
}

void Window::verticalHeaderChanged(int index)
{
    calendar->setVerticalHeaderFormat(QCalendarWidget::VerticalHeaderFormat(
        verticalHeaderCombo->itemData(index).toInt()));
}

//! [2]
void Window::selectedDateChanged()
{
    currentDateEdit->setDate(calendar->selectedDate());
}
//! [2]

//! [3]
void Window::minimumDateChanged(const QDate &date)
{
    calendar->setMinimumDate(date);
    maximumDateEdit->setDate(calendar->maximumDate());
}
//! [3]

//! [4]
void Window::maximumDateChanged(const QDate &date)
{
    calendar->setMaximumDate(date);
    minimumDateEdit->setDate(calendar->minimumDate());
}
//! [4]

//! [5]
void Window::weekdayFormatChanged()
{
    QTextCharFormat format;

    format.setForeground(qvariant_cast<QColor>(
        weekdayColorCombo->itemData(weekdayColorCombo->currentIndex())));
    calendar->setWeekdayTextFormat(Qt::Monday, format);
    calendar->setWeekdayTextFormat(Qt::Tuesday, format);
    calendar->setWeekdayTextFormat(Qt::Wednesday, format);
    calendar->setWeekdayTextFormat(Qt::Thursday, format);
    calendar->setWeekdayTextFormat(Qt::Friday, format);
}
//! [5]

//! [6]
void Window::weekendFormatChanged()
{
    QTextCharFormat format;

    format.setForeground(qvariant_cast<QColor>(
        weekendColorCombo->itemData(weekendColorCombo->currentIndex())));
    calendar->setWeekdayTextFormat(Qt::Saturday, format);
    calendar->setWeekdayTextFormat(Qt::Sunday, format);
}
//! [6]

//! [7]
void Window::reformatHeaders()
{
    QString text = headerTextFormatCombo->currentText();
    QTextCharFormat format;

    if (text == tr("Bold")) {
        format.setFontWeight(QFont::Bold);
    } else if (text == tr("Italic")) {
        format.setFontItalic(true);
    } else if (text == tr("Green")) {
        format.setForeground(Qt::green);
    }
    calendar->setHeaderTextFormat(format);
}
//! [7]

//! [8]
void Window::reformatCalendarPage()
{
    QTextCharFormat mayFirstFormat;
    if (mayFirstCheckBox->isChecked())
        mayFirstFormat.setForeground(Qt::red);

    QTextCharFormat firstFridayFormat;
    if (firstFridayCheckBox->isChecked())
        firstFridayFormat.setForeground(Qt::blue);

    QDate date(calendar->yearShown(), calendar->monthShown(), 1); 

    calendar->setDateTextFormat(QDate(date.year(), 5, 1), mayFirstFormat);

    date.setDate(date.year(), date.month(), 1);
    while (date.dayOfWeek() != Qt::Friday)
        date = date.addDays(1);
    calendar->setDateTextFormat(date, firstFridayFormat);
}
//! [8]

//! [9]
void Window::createPreviewGroupBox()
{
    previewGroupBox = new QGroupBox(tr("Preview"));

    calendar = new QCalendarWidget;
    calendar->setMinimumDate(QDate(1900, 1, 1));
    calendar->setMaximumDate(QDate(3000, 1, 1));
    calendar->setGridVisible(true);

    connect(calendar, SIGNAL(currentPageChanged(int, int)),
            this, SLOT(reformatCalendarPage()));

    previewLayout = new QGridLayout;
    previewLayout->addWidget(calendar, 0, 0, Qt::AlignCenter);
    previewGroupBox->setLayout(previewLayout);
}
//! [9]

//! [10]
void Window::createGeneralOptionsGroupBox()
{
    generalOptionsGroupBox = new QGroupBox(tr("General Options"));

    localeCombo = new QComboBox;
    int curLocaleIndex = -1;
    int index = 0;
    for (int _lang = QLocale::C; _lang <= QLocale::LastLanguage; ++_lang) {
        QLocale::Language lang = static_cast<QLocale::Language>(_lang);
        QList<QLocale::Country> countries = QLocale::countriesForLanguage(lang);
        for (int i = 0; i < countries.count(); ++i) {
            QLocale::Country country = countries.at(i);
            QString label = QLocale::languageToString(lang);
            label += QLatin1Char('/');
            label += QLocale::countryToString(country);
            QLocale locale(lang, country);
            if (this->locale().language() == lang && this->locale().country() == country)
                curLocaleIndex = index;
            localeCombo->addItem(label, locale);
            ++index;
        }
    }
    if (curLocaleIndex != -1)
        localeCombo->setCurrentIndex(curLocaleIndex);