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# Code for Spin Boxes Example

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    package com.trolltech.examples;

    import com.trolltech.qt.core.*;
    import com.trolltech.qt.gui.*;

    @QtJambiExample(name = "Spin Boxes")
    public class SpinBoxes extends QWidget {
        private QDateTimeEdit meetingEdit;
        private QDoubleSpinBox doubleSpinBox;
        private QDoubleSpinBox priceSpinBox;
        private QDoubleSpinBox scaleSpinBox;
        private QGroupBox spinBoxesGroup;
        private QGroupBox editsGroup;
        private QGroupBox doubleSpinBoxesGroup;
        private QLabel meetingLabel;

        public SpinBoxes() {
            this(null);
        }

        public SpinBoxes(QWidget parent) {
            super(parent);
            createSpinBoxes();
            createDateTimeEdits();
            createDoubleSpinBoxes();

            QHBoxLayout layout = new QHBoxLayout();
            layout.addWidget(spinBoxesGroup);
            layout.addWidget(editsGroup);
            layout.addWidget(doubleSpinBoxesGroup);
            setLayout(layout);

            setWindowTitle(tr("Spin Boxes"));

            setWindowIcon(new QIcon("classpath:com/trolltech/images/qt-logo.png"));
        }

        public void createSpinBoxes() {
            spinBoxesGroup = new QGroupBox(tr("Spinboxes"));

            QLabel integerLabel = new QLabel(String.format(tr("Enter a value between %1$d and %2$d:"), -20, 20));
            QSpinBox integerSpinBox = new QSpinBox();
            integerSpinBox.setRange(-20, 20);
            integerSpinBox.setSingleStep(1);
            integerSpinBox.setValue(0);

            QLabel zoomLabel = new QLabel(String.format(tr("Enter a zoom value between %1$d and %2$d:"), 0, 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(String.format(tr("Enter a price between %1$d and %2$d:"), 0, 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);
        }

        public void createDateTimeEdits() {
            editsGroup = new QGroupBox(tr("Date and time spin boxes"));

            QLabel dateLabel = new QLabel();
            QDateEdit dateEdit = new QDateEdit(QDate.currentDate());
            dateEdit.setDateRange(new QDate(2005, 1, 1), new QDate(2010, 12, 31));
            dateLabel.setText(String.format(tr("Appointment date (between %1$s and %2$s):"),
                                            dateEdit.minimumDate().toString(Qt.DateFormat.ISODate),
                                            dateEdit.maximumDate().toString(Qt.DateFormat.ISODate)));

            QLabel timeLabel = new QLabel();
            QTimeEdit timeEdit = new QTimeEdit(QTime.currentTime());
            timeEdit.setTimeRange(new QTime(9, 0, 0, 0), new QTime(16, 30, 0, 0));
            timeLabel.setText(String.format(tr("Appointment time (between %1$s and %2$s):"),
                                            timeEdit.minimumTime().toString(Qt.DateFormat.ISODate),
                                            timeEdit.maximumTime().toString(Qt.DateFormat.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");

            formatComboBox.activated.connect(this, "setFormatString(String)");

            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);
        }

        public void setFormatString(String formatString) {
            meetingEdit.setDisplayFormat(formatString);
            if (meetingEdit.displayedSections().isSet(QDateTimeEdit.Section.DateSections_Mask)) {
                meetingEdit.setDateRange(new QDate(2004, 11, 1), new QDate(2005, 11, 30));
                meetingLabel.setText(String.format(tr("Meeting date (between %1$s and %2$s):"),
                                                   meetingEdit.minimumDate().toString(Qt.DateFormat.ISODate), meetingEdit.maximumDate().toString(Qt.DateFormat.ISODate)));
            } else {
                meetingEdit.setTimeRange(new QTime(0, 7, 20, 0), new QTime(21, 0, 0, 0));
                meetingLabel.setText(String.format(tr("Meeting time (between %1$s and %2$s):"), meetingEdit.minimumTime().toString(Qt.DateFormat.ISODate), meetingEdit.maximumTime().toString(Qt.DateFormat.ISODate)));
            }
        }

        public void 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, 13);
            precisionSpinBox.setValue(2);

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

            QLabel scaleLabel = new QLabel(String.format(tr("Enter a scale factor between %1$d and %2$d:"), 0, 1000));
            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(String.format(tr("Enter a price between %1$d and %2$d:"), 0, 1000));
            priceSpinBox = new QDoubleSpinBox();
            priceSpinBox.setRange(0.0, 1000.0);
            priceSpinBox.setSingleStep(1.0);
            priceSpinBox.setPrefix("$");
            priceSpinBox.setValue(99.99);

            precisionSpinBox.valueChanged.connect(this, "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);
        }

        public void changePrecision(int decimals) {
            doubleSpinBox.setDecimals(decimals);
            scaleSpinBox.setDecimals(decimals);
            priceSpinBox.setDecimals(decimals);
        }

        public static void main(String args[]) {
            QApplication.initialize(args);

            SpinBoxes spinBoxes = new SpinBoxes();
            spinBoxes.show();

            QApplication.exec();
        }
    }