Re: Light Box Effect (2 Windows, 1 Smaller And Active Above Inactive

  To: markspace
From: clusardi2k@aol.com

On Friday, August 17, 2012 8:30:58 AM UTC-4, (unknown) wrote:


ls-for-Killer-GUIs

Here's the HACK #45 code from the book. It has two buttons. If you press one of
th buttons everything on the screen will move away and the screen will become
blank.

Question: How on Earth do I convert this into a light box effect.

Here is a link to other fun JLayer examples:

http://docs.oracle.com/javase/tutorial/uiswing/misc/jlayer.html

//File: SheetTest.java
/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package anisheetablejframe;

        import javax.swing.*;
        import java.awt.*;
        import java.awt.event.*;
        import java.beans.*;

        public class SheetTest extends Object
                implements PropertyChangeListener {

                JOptionPane optionPane;
                AniSheetableJFrame frame;

                public static void main (String[] args) {
                        new SheetTest( );
                }

                public SheetTest ( ) {
                        frame = new AniSheetableJFrame ("Sheet test");
                        // put an image in the frame's content pane
                        ImageIcon icon = new ImageIcon ("keagy-lunch.png");
                        JLabel label = new JLabel (icon);
                        frame.getContentPane( ).add(label);
                        // build JOptionPane dialog and hold onto it
                        optionPane = new JOptionPane ("Do you want to save?",

JOptionPane.QUESTION_MESSAGE,

JOptionPane.YES_NO_OPTION);
                frame.pack( );
                        frame.setVisible(true);
                        optionPane.addPropertyChangeListener (this);
                        // pause for effect, then show the sheet
                        try {Thread.sleep(1000);}
                        catch (InterruptedException ie) {}
                        JDialog dialog =
                                optionPane.createDialog (frame, "irrelevant");
                        frame.showJDialogAsSheet (dialog);
                }

                public void propertyChange (PropertyChangeEvent pce) {
                   if (pce.getPropertyName( ).equals
(JOptionPane.VALUE_PROPERTY)) {
                                System.out.println ("Selected option " +
                                                pce.getNewValue( ));
                                frame.hideSheet( );
                   }
                }
        }

//---------------------------
//File AnimatingSheet.java
package anisheetablejframe;

import java.awt.*;
import java.awt.image.BufferedImage; import javax.swing.JComponent;
import javax.swing.JPanel;

class AnimatingSheet extends JPanel {
                Dimension animatingSize = new Dimension (0, 1);
                JComponent source;
                BufferedImage offscreenImage;
                public AnimatingSheet ( ) {
                        super( );
                        setOpaque(true);
                }
                public void setSource (JComponent source) {
                        this.source = source;
                        animatingSize.width = source.getWidth( );
                        makeOffscreenImage(source);
                }
                public void setAnimatingHeight (int height) {
                        animatingSize.height = height;
                        setSize (animatingSize);
                }
                private void makeOffscreenImage(JComponent source) {
                        GraphicsConfiguration gfxConfig =
                                GraphicsEnvironment.getLocalGraphicsEnvironment
( )
                                           .getDefaultScreenDevice( )
                                           .getDefaultConfiguration( );
                        offscreenImage =
                                gfxConfig.createCompatibleImage(source.getWidth
( ),

source.getHeight( ));
                        Graphics2D offscreenGraphics =
                                (Graphics2D) offscreenImage.getGraphics( );
                        source.paint (offscreenGraphics);
                }
                public Dimension getPreferredSize( ) { return animatingSize; }
                public Dimension getMinimumSize( ) { return animatingSize; }
                public Dimension getMaximumSize( ) { return animatingSize; }
                public void paint (Graphics g) {
                        // get the bottom-most n pixels of source and
                        // paint them into g, where n is height

                    int x = 0;
                    int y = offscreenImage.getHeight() - animatingSize.height;
                    int w = source.getWidth();
                    int h = animatingSize.height;

                        BufferedImage fragment =
                                offscreenImage.getSubimage (x,y,w,h);
                        // g.drawImage (fragment, 0, 0, this);
                        g.drawImage (fragment, 0, 0, this);
                }
        }

//---------------------------
//File AniSheettableJFrame.java
package anisheetablejframe;

import javax.swing.*;
        import javax.swing.border.*;
        import java.awt.*;
        import java.awt.event.*;
        import java.awt.image.*;

        public class AniSheetableJFrame extends JFrame
                implements ActionListener {

                public static final int INCOMING = 1;
                public static final int OUTGOING = -1;
                public static final float ANIMATION_DURATION = 1000f;
                public static final int ANIMATION_SLEEP = 50;

                JComponent sheet;
                JPanel glass;
                AnimatingSheet animatingSheet;
                boolean animating;
                int animationDirection;
                Timer animationTimer;
                long animationStart;
                BufferedImage offscreenImage;

                public AniSheetableJFrame (String name) {
                        super(name);
                        glass = (JPanel) getGlassPane( );
                        glass.setLayout (new GridBagLayout( ));
                        animatingSheet = new AnimatingSheet( );
                        animatingSheet.setBorder (new LineBorder(Color.black,
1));
                }
public JComponent showJDialogAsSheet (JDialog dialog) {
                        sheet = (JComponent) dialog.getContentPane( );
                        sheet.setBorder (new LineBorder(Color.black, 1));
                        glass.removeAll( );
                        animationDirection = INCOMING;
                        startAnimation( );
                        return sheet;
                }

                public void hideSheet( ) {
                        animationDirection = OUTGOING;
                        startAnimation( );
                }

                private void startAnimation( ) {
                        glass.repaint( );
                        // clear glasspane and set up animatingSheet
                        animatingSheet.setSource (sheet);
                        glass.removeAll( );
                        GridBagConstraints gbc = new GridBagConstraints( );
                        gbc.anchor = GridBagConstraints.NORTH;
                        glass.add (animatingSheet, gbc);
                        gbc.gridy=1;
                        gbc.weighty = Integer.MAX_VALUE;
                        glass.add (Box.createGlue( ), gbc);
                        glass.setVisible(true);

                        // start animation timer
                        animationStart = System.currentTimeMillis( );
                        if (animationTimer == null)
                                animationTimer = new Timer (ANIMATION_SLEEP,
this);
                        animating = true;
                        animationTimer.start( );
                }

                private void stopAnimation( ) {
                        animationTimer.stop( );
                        animating = false;
                }

                // used by the Timer
                public void actionPerformed (ActionEvent e) {
                        if (animating) {
                                // calculate height to show
                                float animationPercent =
                                (System.currentTimeMillis( ) - animationStart)
/
                                ANIMATION_DURATION;
                                animationPercent = Math.min (1.0f,
animationPercent);
                                int animatingHeight = 0;

                if (animationDirection == INCOMING) {
                                animatingHeight =
                                (int) (animationPercent * sheet.getHeight( ));
                        } else {
                                animatingHeight =
                    (int) ((1.0f - animationPercent) * sheet.getHeight( ));
                        }
                        // clip off that much from sheet and blit it
                        // into animatingSheet
                        animatingSheet.setAnimatingHeight (animatingHeight);
            animatingSheet.repaint( );

                        if (animationPercent >= 1.0f) {
                                stopAnimation( );
                                if (animationDirection == INCOMING) {
                                finishShowingSheet( );
                                } else {
                                glass.removeAll( );
                                glass.setVisible(false);
                                }
                        }
                }
        }
    private void finishShowingSheet( ) {
                glass.removeAll( );
                GridBagConstraints gbc = new GridBagConstraints( );
                gbc.anchor = GridBagConstraints.NORTH;
                glass.add (sheet, gbc);
                gbc.gridy=1;
                gbc.weighty = Integer.MAX_VALUE;
                glass.add (Box.createGlue( ), gbc);
                glass.revalidate( );
                glass.repaint( );
        }
        // inner class AnimatedSheet goes here
   }

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