Debug.java

/*
 *  Debug.java
 *  (FScape)
 *
 *  Copyright (c) 2001-2016 Hanns Holger Rutz. All rights reserved.
 *
 *  This software is published under the GNU General Public License v3+
 *
 *
 *	For further information, please contact Hanns Holger Rutz at
 *	contact@sciss.de
 */

package de.sciss.fscape.util;

import java.awt.BorderLayout;

import javax.swing.Box;
import javax.swing.JFrame;
import javax.swing.JPanel;

import de.sciss.fscape.gui.VectorDisplay;
import de.sciss.gui.Axis;
import de.sciss.gui.VectorSpace;

/**
 *	@version	0.72, 21-Jan-09
 *	@author		Hanns Holger Rutz
 */
public class Debug
{
    public static void view( float[] data, int off, int length, String description )
    {
        view( data, off, length, description, false, true );
    }

    /**
     *	Open window to view 1D float data
     */
    public static void view( float[] data, int off, int length, String description,
                             boolean centerZero, boolean decimate )
    {
        final float[] dataCopy = new float[ length ];

        System.arraycopy( data, off, dataCopy, 0, length );

        int width = 256;
        int decimF = decimate ? Math.max( 1, 2 * length / width ) : 1;
        int decimLen = length / decimF;

        final float[] decim = new float[ decimLen ];
        float f1, f2, f3;

        f2 = Float.NEGATIVE_INFINITY;
        f3 = Float.POSITIVE_INFINITY;
        for( int i = 0, j = 0; i < decimLen; ) {
            f1 = dataCopy[ j++ ];
            for( int k = 1; k < decimF; k++ ) {
                f1 = Math.max( f1, dataCopy[ j++ ]);
            }
            decim[ i++ ] = f1;
            f2 = Math.max( f2, f1 );
            f3 = Math.min( f3, f1 );
        }
        if( Float.isInfinite( f2 )) f2 = 1f;
        if( Float.isInfinite( f3 )) f3 = 0f;

        final VectorDisplay ggVectorDisplay = new VectorDisplay( decim );
        final Axis			hAxis	= new Axis( Axis.HORIZONTAL );
        final Axis			vAxis	= new Axis( Axis.VERTICAL );

        if( centerZero ) {
            f2 = Math.max( Math.abs( f2 ), Math.abs( f3 ));
            f3 = -f2;
        }

        ggVectorDisplay.setMinMax( f3, f2 );
//		ggVectorDisplay.addMouseListener( mia );
//		ggVectorDisplay.addMouseMotionListener( mia );
//		ggVectorDisplay.addTopPainter( tp );
//		ggVectorDisplay.setPreferredSize( new Dimension( width, 256 )); // XXX
        final JPanel		displayPane = new JPanel( new BorderLayout() );
        displayPane.add( ggVectorDisplay, BorderLayout.CENTER );
        final VectorSpace	spc		= VectorSpace.createLinSpace( off, off + length, f3, f2, null, null, null, null );
        hAxis.setSpace( spc );
        vAxis.setSpace( spc );
        final Box			box		= Box.createHorizontalBox();
        box.add( Box.createHorizontalStrut( vAxis.getPreferredSize().width ));
        box.add( hAxis );
        displayPane.add( box, BorderLayout.NORTH );
        displayPane.add( vAxis, BorderLayout.WEST );

        final JFrame f = new JFrame( description );
        f.setSize( width, 256 );
        f.getContentPane().add( displayPane, BorderLayout.CENTER );
        f.setVisible( true );
    }
}
// class Debug