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# Code for Wiggly Example

    /****************************************************************************
     **
     ** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
     **
     ** This file is part of Qt Jambi.
     **
     ** ** This file may be used under the terms of the GNU General Public
    ** License version 2.0 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 GNU
    ** General Public Licensing requirements will be met:
    ** http://www.trolltech.com/products/qt/opensource.html
    **
    ** If you are unsure which license is appropriate for your use, please
    ** review the following information:
    ** http://www.trolltech.com/products/qt/licensing.html or contact the
    ** sales department at sales@trolltech.com.

     **
     ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
     ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
     **
     ****************************************************************************/

    package com.trolltech.examples;

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

    class WigglyWidget extends QWidget {
        static final int sineTable[] = { 0, 38, 71, 92, 100, 92, 71, 38, 0, -38, -71, -92, -100, -92, -71, -38 };

        private QBasicTimer timer;
        private String text;
        private int step;

        WigglyWidget(QWidget parent) {
            super(parent);
            setBackgroundRole(QPalette.ColorRole.Midlight);

            QFont newFont = font();
            newFont.setPointSize(newFont.pointSize() + 20);
            setFont(newFont);

            step = 0;

            timer = new QBasicTimer();
            timer.start(60, this);
        }

        public void setText(String s) {
            text = s;
        }

        @Override
        protected void paintEvent(QPaintEvent e) {
            QFontMetrics metrics = new QFontMetrics(font());
            int x = (width() - metrics.width(text)) / 2;
            int y = (height() + metrics.ascent() - metrics.descent()) / 2;
            QColor color = new QColor();

            QPainter painter = new QPainter();
            painter.begin(this);
            for (int i = 0; i < text.length(); ++i) {
                int index = (step + i) % 16;
                color.setHsv((15 - index) * 16, 255, 191);
                painter.setPen(color);
                painter.drawText(x, y - ((sineTable[index] * metrics.height()) / 400), text.substring(i, i + 1));
                x += metrics.width(text.substring(i, i + 1));
            }
            painter.end();
        }

        @Override
        protected void timerEvent(QTimerEvent event) {
            if (event.timerId() == timer.timerId()) {
                ++step;
                update();
            } else {
                super.timerEvent(event);
            }
        }
    }

    @QtJambiExample(name = "Wiggly")
    public class Wiggly extends QDialog {
        public Wiggly(QWidget parent) {
            super(parent);

            WigglyWidget wigglyWidget = new WigglyWidget(null);
            QLineEdit lineEdit = new QLineEdit();

            QVBoxLayout layout = new QVBoxLayout();
            layout.addWidget(wigglyWidget);
            layout.addWidget(lineEdit);
            setLayout(layout);

            lineEdit.textChanged.connect(wigglyWidget, "setText(String)");

            lineEdit.setText("Hello world!");

            setWindowTitle("Wiggly");
            setWindowIcon(new QIcon("classpath:com/trolltech/images/qt-logo.png"));
            resize(360, 145);
        }

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

            Wiggly d = new Wiggly(null);
            d.show();

            QApplication.exec();
        }
    }