C++/Qt/QSpinBox — различия между версиями

Текущая версия на 10:25, 25 мая 2010

Содержание

1 Add value change signal for Spin box
2 Horizontal Spin box
3 Ser range for Spin box
4 Set value to Spin box
5 Spin box

Add value change signal for Spin box

  

#include <QApplication>
#include <QHBoxLayout>
#include <QSlider>
#include <QSpinBox>
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QWidget *window = new QWidget;
    window->setWindowTitle("Enter Your Age");
    QSpinBox *spinBox = new QSpinBox;
    QSlider *slider = new QSlider(Qt::Horizontal);
    spinBox->setRange(0, 130);
    slider->setRange(0, 130);
    QObject::connect(spinBox, SIGNAL(valueChanged(int)),slider, SLOT(setValue(int)));
    QObject::connect(slider, SIGNAL(valueChanged(int)),spinBox, SLOT(setValue(int)));
    spinBox->setValue(35);
    QHBoxLayout *layout = new QHBoxLayout;
    layout->addWidget(spinBox);
    layout->addWidget(slider);
    window->setLayout(layout);
    window->show();
    return app.exec();
}

Horizontal Spin box

  
#include <QApplication>
#include <QHBoxLayout>
#include <QSlider>
#include <QSpinBox>
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QWidget *window = new QWidget;
    window->setWindowTitle("Enter Your Age");
    QSpinBox *spinBox = new QSpinBox;
    QSlider *slider = new QSlider(Qt::Horizontal);
    spinBox->setRange(0, 130);
    slider->setRange(0, 130);
    QObject::connect(spinBox, SIGNAL(valueChanged(int)),slider, SLOT(setValue(int)));
    QObject::connect(slider, SIGNAL(valueChanged(int)),spinBox, SLOT(setValue(int)));
    spinBox->setValue(35);
    QHBoxLayout *layout = new QHBoxLayout;
    layout->addWidget(spinBox);
    layout->addWidget(slider);
    window->setLayout(layout);
    window->show();
    return app.exec();
}

Ser range for Spin box

  
#include <QApplication>
#include <QHBoxLayout>
#include <QSlider>
#include <QSpinBox>
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QWidget *window = new QWidget;
    window->setWindowTitle("Enter Your Age");
    QSpinBox *spinBox = new QSpinBox;
    QSlider *slider = new QSlider(Qt::Horizontal);
    spinBox->setRange(0, 130);
    slider->setRange(0, 130);
    QObject::connect(spinBox, SIGNAL(valueChanged(int)),slider, SLOT(setValue(int)));
    QObject::connect(slider, SIGNAL(valueChanged(int)),spinBox, SLOT(setValue(int)));
    spinBox->setValue(35);
    QHBoxLayout *layout = new QHBoxLayout;
    layout->addWidget(spinBox);
    layout->addWidget(slider);
    window->setLayout(layout);
    window->show();
    return app.exec();
}

Set value to Spin box

  
#include <QApplication>
#include <QHBoxLayout>
#include <QSlider>
#include <QSpinBox>
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QWidget *window = new QWidget;
    window->setWindowTitle("Enter Your Age");
    QSpinBox *spinBox = new QSpinBox;
    QSlider *slider = new QSlider(Qt::Horizontal);
    spinBox->setRange(0, 130);
    slider->setRange(0, 130);
    QObject::connect(spinBox, SIGNAL(valueChanged(int)),slider, SLOT(setValue(int)));
    QObject::connect(slider, SIGNAL(valueChanged(int)),spinBox, SLOT(setValue(int)));
    spinBox->setValue(35);
    QHBoxLayout *layout = new QHBoxLayout;
    layout->addWidget(spinBox);
    layout->addWidget(slider);
    window->setLayout(layout);
    window->show();
    return app.exec();
}

Spin box

  
/****************************************************************************
**
** 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 QDateTimeEdit;
class QDoubleSpinBox;
class QGroupBox;
class QLabel;
QT_END_NAMESPACE

class Window : public QWidget
{
    Q_OBJECT
public:
    Window();
public slots:
    void changePrecision(int decimals);
    void setFormatString(const QString &formatString);
private:
    void createSpinBoxes();
    void createDateTimeEdits();
    void createDoubleSpinBoxes();
    QDateTimeEdit *meetingEdit;
    QDoubleSpinBox *doubleSpinBox;
    QDoubleSpinBox *priceSpinBox;
    QDoubleSpinBox *scaleSpinBox;
    QGroupBox *spinBoxesGroup;
    QGroupBox *editsGroup;
    QGroupBox *doubleSpinBoxesGroup;
    QLabel *meetingLabel;
};

#endif


#include <QtGui>
#include "window.h"

Window::Window()
{
    createSpinBoxes();
    createDateTimeEdits();
    createDoubleSpinBoxes();
    QHBoxLayout *layout = new QHBoxLayout;
    layout->addWidget(spinBoxesGroup);
    layout->addWidget(editsGroup);
    layout->addWidget(doubleSpinBoxesGroup);
    setLayout(layout);
    setWindowTitle(tr("Spin Boxes"));
}

void Window::createSpinBoxes()
{
    spinBoxesGroup = new QGroupBox(tr("Spinboxes"));
    QLabel *integerLabel = new QLabel(tr("Enter a value between "
        "%1 and %2:").arg(-20).arg(20));
    QSpinBox *integerSpinBox = new QSpinBox;
    integerSpinBox->setRange(-20, 20);
    integerSpinBox->setSingleStep(1);
    integerSpinBox->setValue(0);

    QLabel *zoomLabel = new QLabel(tr("Enter a zoom value between "
        "%1 and %2:").arg(0).arg(1000));
    QSpinBox *zoomSpinBox = new QSpinBox;
    zoomSpinBox->setRange(0, 1000);
    zoomSpinBox->setSingleStep(10);
    zoomSpinBox->setSuffix("%");
    zoomSpinBox->setSpecialValueText(tr("Automatic"));
    zoomSpinBox->setValue(100);
 

    QLabel *priceLabel = new QLabel(tr("Enter a price between "
        "%1 and %2:").arg(0).arg(999));
    QSpinBox *priceSpinBox = new QSpinBox;
    priceSpinBox->setRange(0, 999);
    priceSpinBox->setSingleStep(1);
    priceSpinBox->setPrefix("$");
    priceSpinBox->setValue(99);
 
    QVBoxLayout *spinBoxLayout = new QVBoxLayout;
    spinBoxLayout->addWidget(integerLabel);
    spinBoxLayout->addWidget(integerSpinBox);
    spinBoxLayout->addWidget(zoomLabel);
    spinBoxLayout->addWidget(zoomSpinBox);
    spinBoxLayout->addWidget(priceLabel);
    spinBoxLayout->addWidget(priceSpinBox);
    spinBoxesGroup->setLayout(spinBoxLayout);
}

void Window::createDateTimeEdits()
{
    editsGroup = new QGroupBox(tr("Date and time spin boxes"));
    QLabel *dateLabel = new QLabel;
    QDateEdit *dateEdit = new QDateEdit(QDate::currentDate());
    dateEdit->setDateRange(QDate(2005, 1, 1), QDate(2010, 12, 31));
    dateLabel->setText(tr("Appointment date (between %0 and %1):")
                       .arg(dateEdit->minimumDate().toString(Qt::ISODate))
                       .arg(dateEdit->maximumDate().toString(Qt::ISODate)));

    QLabel *timeLabel = new QLabel;
    QTimeEdit *timeEdit = new QTimeEdit(QTime::currentTime());
    timeEdit->setTimeRange(QTime(9, 0, 0, 0), QTime(16, 30, 0, 0));
    timeLabel->setText(tr("Appointment time (between %0 and %1):")
                       .arg(timeEdit->minimumTime().toString(Qt::ISODate))
                       .arg(timeEdit->maximumTime().toString(Qt::ISODate)));

    meetingLabel = new QLabel;
    meetingEdit = new QDateTimeEdit(QDateTime::currentDateTime());

    QLabel *formatLabel = new QLabel(tr("Format string for the meeting date "
                                        "and time:"));
    QComboBox *formatComboBox = new QComboBox;
    formatComboBox->addItem("yyyy-MM-dd hh:mm:ss (zzz "ms")");
    formatComboBox->addItem("hh:mm:ss MM/dd/yyyy");
    formatComboBox->addItem("hh:mm:ss dd/MM/yyyy");
    formatComboBox->addItem("hh:mm:ss");
    formatComboBox->addItem("hh:mm ap");
 
    connect(formatComboBox, SIGNAL(activated(const QString &)),
            this, SLOT(setFormatString(const QString &)));

    setFormatString(formatComboBox->currentText());

    QVBoxLayout *editsLayout = new QVBoxLayout;
    editsLayout->addWidget(dateLabel);
    editsLayout->addWidget(dateEdit);
    editsLayout->addWidget(timeLabel);
    editsLayout->addWidget(timeEdit);
    editsLayout->addWidget(meetingLabel);
    editsLayout->addWidget(meetingEdit);
    editsLayout->addWidget(formatLabel);
    editsLayout->addWidget(formatComboBox);
    editsGroup->setLayout(editsLayout);
}

void Window::setFormatString(const QString &formatString)
{
    meetingEdit->setDisplayFormat(formatString);
 
    if (meetingEdit->displayedSections() & QDateTimeEdit::DateSections_Mask) {
        meetingEdit->setDateRange(QDate(2004, 11, 1), QDate(2005, 11, 30));
        meetingLabel->setText(tr("Meeting date (between %0 and %1):")
            .arg(meetingEdit->minimumDate().toString(Qt::ISODate))
      .arg(meetingEdit->maximumDate().toString(Qt::ISODate)));
    } else {
        meetingEdit->setTimeRange(QTime(0, 7, 20, 0), QTime(21, 0, 0, 0));
        meetingLabel->setText(tr("Meeting time (between %0 and %1):")
            .arg(meetingEdit->minimumTime().toString(Qt::ISODate))
      .arg(meetingEdit->maximumTime().toString(Qt::ISODate)));
    }
}

void Window::createDoubleSpinBoxes()
{
    doubleSpinBoxesGroup = new QGroupBox(tr("Double precision spinboxes"));
    QLabel *precisionLabel = new QLabel(tr("Number of decimal places "
                                           "to show:"));
    QSpinBox *precisionSpinBox = new QSpinBox;
    precisionSpinBox->setRange(0, 100);
    precisionSpinBox->setValue(2);

    QLabel *doubleLabel = new QLabel(tr("Enter a value between "
        "%1 and %2:").arg(-20).arg(20));
    doubleSpinBox = new QDoubleSpinBox;
    doubleSpinBox->setRange(-20.0, 20.0);
    doubleSpinBox->setSingleStep(1.0);
    doubleSpinBox->setValue(0.0);

    QLabel *scaleLabel = new QLabel(tr("Enter a scale factor between "
        "%1 and %2:").arg(0).arg(1000.0));
    scaleSpinBox = new QDoubleSpinBox;
    scaleSpinBox->setRange(0.0, 1000.0);
    scaleSpinBox->setSingleStep(10.0);
    scaleSpinBox->setSuffix("%");
    scaleSpinBox->setSpecialValueText(tr("No scaling"));
    scaleSpinBox->setValue(100.0);

    QLabel *priceLabel = new QLabel(tr("Enter a price between "
        "%1 and %2:").arg(0).arg(1000));
    priceSpinBox = new QDoubleSpinBox;
    priceSpinBox->setRange(0.0, 1000.0);
    priceSpinBox->setSingleStep(1.0);
    priceSpinBox->setPrefix("$");
    priceSpinBox->setValue(99.99);
    connect(precisionSpinBox, SIGNAL(valueChanged(int)),
            this, SLOT(changePrecision(int)));

    QVBoxLayout *spinBoxLayout = new QVBoxLayout;
    spinBoxLayout->addWidget(precisionLabel);
    spinBoxLayout->addWidget(precisionSpinBox);
    spinBoxLayout->addWidget(doubleLabel);
    spinBoxLayout->addWidget(doubleSpinBox);
    spinBoxLayout->addWidget(scaleLabel);
    spinBoxLayout->addWidget(scaleSpinBox);
    spinBoxLayout->addWidget(priceLabel);
    spinBoxLayout->addWidget(priceSpinBox);
    doubleSpinBoxesGroup->setLayout(spinBoxLayout);
}

void Window::changePrecision(int decimals)
{
    doubleSpinBox->setDecimals(decimals);
    scaleSpinBox->setDecimals(decimals);
    priceSpinBox->setDecimals(decimals);
}




#include <QApplication>
#include "window.h"
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    Window window;
    window.show();
    return app.exec();
}

C++/Qt/QSpinBox — различия между версиями

Текущая версия на 10:25, 25 мая 2010

Содержание

Add value change signal for Spin box

Horizontal Spin box

Ser range for Spin box

Set value to Spin box

Spin box

Навигация

Персональные инструменты

Пространства имён

Варианты

Просмотры

Ещё

Поиск

С

С++

Навигация

Инструменты

Текущая версия на 10:25, 25 мая 2010 (просмотреть исходный код) Admin (обсуждение \| вклад) м (1 версия: Импорт контента...)	Текущая версия на 10:25, 25 мая 2010 (просмотреть исходный код) Admin (обсуждение \| вклад) м (1 версия: Импорт контента...)
(нет различий)