/** * Booz|Allen|Hamilton  * 8283 Greensboro Dr.  * McLean, VA 22102-3888 *  * This software was developed by Booz|Allen|Hamilton under U.S * Government contracts, and may be reproduced by or for the U.S * Government pursuant to the copyright license under the clause at * DFARS 252.227-7013 5-06-05 *  * @author Richard B. Lane */package com.bbn.openmap.event;import java.awt.Color;import java.awt.Transparency;import java.awt.event.MouseEvent;import com.bbn.openmap.LatLonPoint;import com.bbn.openmap.MapBean;import com.bbn.openmap.proj.Mercator;import com.bbn.openmap.proj.Projection;import com.bbn.openmap.proj.ProjectionFactory;/** * This mouse mode responds to a double click with an animation effect * of zooming in the map. */public class ZoomMouseMode extends CoordMouseMode {    protected double squareWidth = 50;    public final static transient String modeID = "Zoom".intern();    protected MapBean theMap = null;    public ZoomMouseMode() {        super(modeID, true);    }    /**     * Process a mouseClicked event.     *      * @param e mouse event.     */    public void mouseClicked(MouseEvent e) {        if (e.getSource() instanceof MapBean) {            final int currX = e.getX();            final int currY = e.getY();            theMap = (MapBean) e.getSource();            if (e.getClickCount() == 2) {                if (e.getButton() == 1) {                    // int currCol = currX / ((int) squareWidth);                    // int currRow = currY / ((int) squareWidth);                    // int squareUpperLeftX =                    // (int)(currCol*squareWidth);                    // int squareUpperLeftY =                    // (int)(currRow*squareWidth);                    int squareCenterX = currX;                    int squareCenterY = currY;                    int squareUpperLeftX = currX - ((int) squareWidth / 2);                    int squareUpperLeftY = currY - ((int) squareWidth / 2);                    double aspect = (double) theMap.getHeight()                            / (double) theMap.getWidth();                    double squareWidth = this.squareWidth;                    double squareHeight = this.squareWidth;                    if (aspect > 1) {                        squareHeight *= aspect;                        squareUpperLeftY = squareCenterY                                - (int) (squareHeight / 2);                    } else {                        squareWidth /= aspect;                        squareUpperLeftX = squareCenterX                                - (int) (squareWidth / 2);                    }                    Projection proj = theMap.getProjection();                    LatLonPoint upperLeft = proj.inverse(squareUpperLeftX,                            squareUpperLeftY);                    LatLonPoint lowerRight = proj.inverse(squareUpperLeftX                            + (int) (squareWidth), squareUpperLeftY                            + (int) (squareHeight));                    LatLonPoint center = proj.inverse(squareCenterX,                            squareCenterY);                    double necessaryScale = proj.getScale(upperLeft,                            lowerRight,                            proj.forward(upperLeft),                            proj.forward(lowerRight));                    final Projection newProj = ProjectionFactory.makeProjection(Mercator.class,                            (float) center.getLatitude(),                            (float) center.getLongitude(),                            (float) necessaryScale,                            theMap.getWidth(),                            theMap.getHeight());                    Thread delayThread = new Thread() {                        public void run() {                            theMap.setProjection(newProj);                        }                    };                    java.awt.image.BufferedImage bi = theMap.getGraphicsConfiguration()                            .createCompatibleImage(theMap.getWidth(),                                    theMap.getHeight(),                                    Transparency.OPAQUE);                    theMap.paintAll(bi.getGraphics());                    java.awt.image.BufferedImage bi2 = bi.getSubimage(squareUpperLeftX,                            squareUpperLeftY,                            (int) squareWidth,                            (int) squareHeight);                    java.awt.image.BufferedImage square = new java.awt.image.BufferedImage((int) squareWidth, (int) squareHeight, java.awt.image.BufferedImage.TYPE_INT_RGB);                    square.getGraphics().drawImage(bi2,                            0,                            0,                            (int) squareWidth,                            (int) squareHeight,                            null);                    square.getGraphics().setColor(new Color(0, 255, 0, 255));                    square.getGraphics().drawRect(0,                            0,                            square.getWidth() - 1,                            square.getHeight() - 1);                    delayThread.start();                    double iterations = 10;                    double widthIncrease = theMap.getWidth() - squareWidth;                    double heightIncrease = theMap.getHeight() - squareHeight;                    double widthInc = widthIncrease / iterations;                    double heightInc = heightIncrease / iterations;                    double leftInc = squareUpperLeftX / iterations;                    double upInc = squareUpperLeftY / iterations;                    for (int i = 0; i < iterations + 1; i++) {                        theMap.getGraphics().drawImage(square,                                squareUpperLeftX - (int) (leftInc * i),                                squareUpperLeftY - (int) (upInc * i),                                (int) squareWidth + (int) (widthInc * i),                                (int) squareHeight + (int) (heightInc * i),                                null);                        try {                            Thread.sleep(50);                        } catch (Exception ex) {                            ;                        }                    }                }            }        }    }}