Calendar widget : QWidget « Qt « C++

Home
C++
1.Bitset
2.Class
3.Console
4.Data Structure
5.Data Type
6.Deque
7.Development
8.File
9.Function
10.Generic
11.Language
12.List
13.Map Multimap
14.Overload
15.Pointer
16.Qt
17.Queue Stack
18.Set Multiset
19.STL Algorithms Binary search
20.STL Algorithms Heap
21.STL Algorithms Helper
22.STL Algorithms Iterator
23.STL Algorithms Merge
24.STL Algorithms Min Max
25.STL Algorithms Modifying sequence operations
26.STL Algorithms Non modifying sequence operations
27.STL Algorithms Sorting
28.STL Basics
29.String
30.Valarray
31.Vector
C / ANSI-C
C Tutorial
C++ Tutorial
Visual C++ .NET
C++ » Qt » QWidgetScreenshots 
Calendar widget
  

/****************************************************************************
**
** 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 QCalendarWidget;
class QCheckBox;
class QComboBox;
class QDate;
class QDateEdit;
class QGridLayout;
class QGroupBox;
class QLabel;
QT_END_NAMESPACE


class Window : public QWidget
{
    Q_OBJECT

public:
    Window();

private slots:
    void localeChanged(int index);
    void firstDayChanged(int index);
    void selectionModeChanged(int index);
    void horizontalHeaderChanged(int index);
    void verticalHeaderChanged(int index);
    void selectedDateChanged();
    void minimumDateChanged(const QDate &date);
    void maximumDateChanged(const QDate &date);
    void weekdayFormatChanged();
    void weekendFormatChanged();
    void reformatHeaders();
    void reformatCalendarPage();

private:
    void createPreviewGroupBox();
    void createGeneralOptionsGroupBox();
    void createDatesGroupBox();
    void createTextFormatsGroupBox();
    QComboBox *createColorComboBox();

    QGroupBox *previewGroupBox;
    QGridLayout *previewLayout;
    QCalendarWidget *calendar;

    QGroupBox *generalOptionsGroupBox;
    QLabel *localeLabel;
    QLabel *firstDayLabel;

    QLabel *selectionModeLabel;
    QLabel *horizontalHeaderLabel;
    QLabel *verticalHeaderLabel;
    QComboBox *localeCombo;
    QComboBox *firstDayCombo;
    QComboBox *selectionModeCombo;
    QCheckBox *gridCheckBox;
    QCheckBox *navigationCheckBox;
    QComboBox *horizontalHeaderCombo;
    QComboBox *verticalHeaderCombo;

    QGroupBox *datesGroupBox;
    QLabel *currentDateLabel;
    QLabel *minimumDateLabel;
    QLabel *maximumDateLabel;
    QDateEdit *currentDateEdit;
    QDateEdit *minimumDateEdit;
    QDateEdit *maximumDateEdit;

    QGroupBox *textFormatsGroupBox;
    QLabel *weekdayColorLabel;
    QLabel *weekendColorLabel;
    QLabel *headerTextFormatLabel;
    QComboBox *weekdayColorCombo;
    QComboBox *weekendColorCombo;
    QComboBox *headerTextFormatCombo;

    QCheckBox *firstFridayCheckBox;

    QCheckBox *mayFirstCheckBox;
};


#endif






#include <QtGui>

#include "window.h"


Window::Window()
{
    createPreviewGroupBox();
    createGeneralOptionsGroupBox();
    createDatesGroupBox();
    createTextFormatsGroupBox();

    QGridLayout *layout = new QGridLayout;
    layout->addWidget(previewGroupBox, 00);
    layout->addWidget(generalOptionsGroupBox, 01);
    layout->addWidget(datesGroupBox, 10);
    layout->addWidget(textFormatsGroupBox, 11);
    layout->setSizeConstraint(QLayout::SetFixedSize);
    setLayout(layout);

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

    setWindowTitle(tr("Calendar Widget"));
}


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


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


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()));
}


void Window::selectedDateChanged()
{
    currentDateEdit->setDate(calendar->selectedDate());
}



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



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



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);
}



void Window::weekendFormatChanged()
{
    QTextCharFormat format;

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



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);
}



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()51), mayFirstFormat);

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



void Window::createPreviewGroupBox()
{
    previewGroupBox = new QGroupBox(tr("Preview"));

    calendar = new QCalendarWidget;
    calendar->setMinimumDate(QDate(190011));
    calendar->setMaximumDate(QDate(300011));
    calendar->setGridVisible(true);

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

    previewLayout = new QGridLayout;
    previewLayout->addWidget(calendar, 00, Qt::AlignCenter);
    previewGroupBox->setLayout(previewLayout);
}



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);
    localeLabel = new QLabel(tr("&Locale"));
    localeLabel->setBuddy(localeCombo);

    firstDayCombo = new QComboBox;
    firstDayCombo->addItem(tr("Sunday"), Qt::Sunday);
    firstDayCombo->addItem(tr("Monday"), Qt::Monday);
    firstDayCombo->addItem(tr("Tuesday"), Qt::Tuesday);
    firstDayCombo->addItem(tr("Wednesday"), Qt::Wednesday);
    firstDayCombo->addItem(tr("Thursday"), Qt::Thursday);
    firstDayCombo->addItem(tr("Friday"), Qt::Friday);
    firstDayCombo->addItem(tr("Saturday"), Qt::Saturday);

    firstDayLabel = new QLabel(tr("Wee&k starts on:"));
    firstDayLabel->setBuddy(firstDayCombo);


    selectionModeCombo = new QComboBox;
    selectionModeCombo->addItem(tr("Single selection"),
                                QCalendarWidget::SingleSelection);
    selectionModeCombo->addItem(tr("None"), QCalendarWidget::NoSelection);

    selectionModeLabel = new QLabel(tr("&Selection mode:"));
    selectionModeLabel->setBuddy(selectionModeCombo);

    gridCheckBox = new QCheckBox(tr("&Grid"));
    gridCheckBox->setChecked(calendar->isGridVisible());

    navigationCheckBox = new QCheckBox(tr("&Navigation bar"));
    navigationCheckBox->setChecked(true);

    horizontalHeaderCombo = new QComboBox;
    horizontalHeaderCombo->addItem(tr("Single letter day names"),
                                   QCalendarWidget::SingleLetterDayNames);
    horizontalHeaderCombo->addItem(tr("Short day names"),
                                   QCalendarWidget::ShortDayNames);
    horizontalHeaderCombo->addItem(tr("None"),
                                   QCalendarWidget::NoHorizontalHeader);
    horizontalHeaderCombo->setCurrentIndex(1);

    horizontalHeaderLabel = new QLabel(tr("&Horizontal header:"));
    horizontalHeaderLabel->setBuddy(horizontalHeaderCombo);

    verticalHeaderCombo = new QComboBox;
    verticalHeaderCombo->addItem(tr("ISO week numbers"),
                                 QCalendarWidget::ISOWeekNumbers);
    verticalHeaderCombo->addItem(tr("None"), QCalendarWidget::NoVerticalHeader);

    verticalHeaderLabel = new QLabel(tr("&Vertical header:"));
    verticalHeaderLabel->setBuddy(verticalHeaderCombo);


    connect(localeCombo, SIGNAL(currentIndexChanged(int)),
            this, SLOT(localeChanged(int)));
    connect(firstDayCombo, SIGNAL(currentIndexChanged(int)),
            this, SLOT(firstDayChanged(int)));
    connect(selectionModeCombo, SIGNAL(currentIndexChanged(int)),
            this, SLOT(selectionModeChanged(int)));
    connect(gridCheckBox, SIGNAL(toggled(bool)),
            calendar, SLOT(setGridVisible(bool)));
    connect(navigationCheckBox, SIGNAL(toggled(bool)),
            calendar, SLOT(setNavigationBarVisible(bool)));
    connect(horizontalHeaderCombo, SIGNAL(currentIndexChanged(int)),
            this, SLOT(horizontalHeaderChanged(int)));
    connect(verticalHeaderCombo, SIGNAL(currentIndexChanged(int)),
            this, SLOT(verticalHeaderChanged(int)));


    QHBoxLayout *checkBoxLayout = new QHBoxLayout;
    checkBoxLayout->addWidget(gridCheckBox);
    checkBoxLayout->addStretch();
    checkBoxLayout->addWidget(navigationCheckBox);

    QGridLayout *outerLayout = new QGridLayout;
    outerLayout->addWidget(localeLabel, 00);
    outerLayout->addWidget(localeCombo, 01);
    outerLayout->addWidget(firstDayLabel, 10);
    outerLayout->addWidget(firstDayCombo, 11);
    outerLayout->addWidget(selectionModeLabel, 20);
    outerLayout->addWidget(selectionModeCombo, 21);
    outerLayout->addLayout(checkBoxLayout, 3012);
    outerLayout->addWidget(horizontalHeaderLabel, 40);
    outerLayout->addWidget(horizontalHeaderCombo, 41);
    outerLayout->addWidget(verticalHeaderLabel, 50);
    outerLayout->addWidget(verticalHeaderCombo, 51);
    generalOptionsGroupBox->setLayout(outerLayout);


    firstDayChanged(firstDayCombo->currentIndex());
    selectionModeChanged(selectionModeCombo->currentIndex());
    horizontalHeaderChanged(horizontalHeaderCombo->currentIndex());
    verticalHeaderChanged(verticalHeaderCombo->currentIndex());
}



void Window::createDatesGroupBox()
{
    datesGroupBox = new QGroupBox(tr("Dates"));

    minimumDateEdit = new QDateEdit;
    minimumDateEdit->setDisplayFormat("MMM d yyyy");
    minimumDateEdit->setDateRange(calendar->minimumDate(),
                                  calendar->maximumDate());
    minimumDateEdit->setDate(calendar->minimumDate());

    minimumDateLabel = new QLabel(tr("&Minimum Date:"));
    minimumDateLabel->setBuddy(minimumDateEdit);

    currentDateEdit = new QDateEdit;
    currentDateEdit->setDisplayFormat("MMM d yyyy");
    currentDateEdit->setDate(calendar->selectedDate());
    currentDateEdit->setDateRange(calendar->minimumDate(),
                                  calendar->maximumDate());

    currentDateLabel = new QLabel(tr("&Current Date:"));
    currentDateLabel->setBuddy(currentDateEdit);

    maximumDateEdit = new QDateEdit;
    maximumDateEdit->setDisplayFormat("MMM d yyyy");
    maximumDateEdit->setDateRange(calendar->minimumDate(),
                                  calendar->maximumDate());
    maximumDateEdit->setDate(calendar->maximumDate());

    maximumDateLabel = new QLabel(tr("Ma&ximum Date:"));
    maximumDateLabel->setBuddy(maximumDateEdit);

 
    connect(currentDateEdit, SIGNAL(dateChanged(const QDate &)),
            calendar, SLOT(setSelectedDate(const QDate &)));
    connect(calendar, SIGNAL(selectionChanged()),
            this, SLOT(selectedDateChanged()));
    connect(minimumDateEdit, SIGNAL(dateChanged(const QDate &)),
            this, SLOT(minimumDateChanged(const QDate &)));
    connect(maximumDateEdit, SIGNAL(dateChanged(const QDate &)),
            this, SLOT(maximumDateChanged(const QDate &)));


    QGridLayout *dateBoxLayout = new QGridLayout;
    dateBoxLayout->addWidget(currentDateLabel, 10);
    dateBoxLayout->addWidget(currentDateEdit, 11);
    dateBoxLayout->addWidget(minimumDateLabel, 00);
    dateBoxLayout->addWidget(minimumDateEdit, 01);
    dateBoxLayout->addWidget(maximumDateLabel, 20);
    dateBoxLayout->addWidget(maximumDateEdit, 21);
    dateBoxLayout->setRowStretch(31);

    datesGroupBox->setLayout(dateBoxLayout);

}



void Window::createTextFormatsGroupBox()
{
    textFormatsGroupBox = new QGroupBox(tr("Text Formats"));

    weekdayColorCombo = createColorComboBox();
    weekdayColorCombo->setCurrentIndex(
            weekdayColorCombo->findText(tr("Black")));

    weekdayColorLabel = new QLabel(tr("&Weekday color:"));
    weekdayColorLabel->setBuddy(weekdayColorCombo);

    weekendColorCombo = createColorComboBox();
    weekendColorCombo->setCurrentIndex(
            weekendColorCombo->findText(tr("Red")));

    weekendColorLabel = new QLabel(tr("Week&end color:"));
    weekendColorLabel->setBuddy(weekendColorCombo);

 
    headerTextFormatCombo = new QComboBox;
    headerTextFormatCombo->addItem(tr("Bold"));
    headerTextFormatCombo->addItem(tr("Italic"));
    headerTextFormatCombo->addItem(tr("Plain"));

    headerTextFormatLabel = new QLabel(tr("&Header text:"));
    headerTextFormatLabel->setBuddy(headerTextFormatCombo);

    firstFridayCheckBox = new QCheckBox(tr("&First Friday in blue"));

    mayFirstCheckBox = new QCheckBox(tr("May &1 in red"));

 
    connect(weekdayColorCombo, SIGNAL(currentIndexChanged(int)),
            this, SLOT(weekdayFormatChanged()));
    connect(weekendColorCombo, SIGNAL(currentIndexChanged(int)),
            this, SLOT(weekendFormatChanged()));
    connect(headerTextFormatCombo, SIGNAL(currentIndexChanged(const QString &)),
            this, SLOT(reformatHeaders()));
    connect(firstFridayCheckBox, SIGNAL(toggled(bool)),
            this, SLOT(reformatCalendarPage()));
    connect(mayFirstCheckBox, SIGNAL(toggled(bool)),
            this, SLOT(reformatCalendarPage()));


    QHBoxLayout *checkBoxLayout = new QHBoxLayout;
    checkBoxLayout->addWidget(firstFridayCheckBox);
    checkBoxLayout->addStretch();
    checkBoxLayout->addWidget(mayFirstCheckBox);

    QGridLayout *outerLayout = new QGridLayout;
    outerLayout->addWidget(weekdayColorLabel, 00);
    outerLayout->addWidget(weekdayColorCombo, 01);
    outerLayout->addWidget(weekendColorLabel, 10);
    outerLayout->addWidget(weekendColorCombo, 11);
    outerLayout->addWidget(headerTextFormatLabel, 20);
    outerLayout->addWidget(headerTextFormatCombo, 21);
    outerLayout->addLayout(checkBoxLayout, 3012);
    textFormatsGroupBox->setLayout(outerLayout);

    weekdayFormatChanged();
    weekendFormatChanged();

    reformatHeaders();
    reformatCalendarPage();
}



QComboBox *Window::createColorComboBox()
{
    QComboBox *comboBox = new QComboBox;
    comboBox->addItem(tr("Red"), Qt::red);
    comboBox->addItem(tr("Blue"), Qt::blue);
    comboBox->addItem(tr("Black"), Qt::black);
    comboBox->addItem(tr("Magenta"), Qt::magenta);
    return comboBox;
}







#include <QtGui>

#include "window.h"

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

   
    
  
Related examples in the same category
1.Combo widget mapper
2.Subclass QWidget
3.Subclass QWidget to do paint
4.Analog Clock
5.Child widget
6.Circle Widget
7.Using QStatus tip event
8.extends QWidget
9.Wiggly Widget
10.Render Area
11.How to compile and run Qt from command line
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.