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Core components for WebLaf
/*
* This file is part of WebLookAndFeel library.
*
* WebLookAndFeel library is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* WebLookAndFeel library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with WebLookAndFeel library. If not, see .
*/
package com.alee.graphics.strokes;
import java.awt.*;
import java.awt.geom.FlatteningPathIterator;
import java.awt.geom.GeneralPath;
import java.awt.geom.PathIterator;
/**
* @author Mikle Garin
*/
public class RandomStroke implements Stroke
{
private float detail = 2;
private float amplitude = 2;
private static final float FLATNESS = 1;
public RandomStroke ( final float detail, final float amplitude )
{
this.detail = detail;
this.amplitude = amplitude;
}
@Override
public Shape createStrokedShape ( Shape shape )
{
final GeneralPath result = new GeneralPath ();
shape = new BasicStroke ( 10 ).createStrokedShape ( shape );
final PathIterator it = new FlatteningPathIterator ( shape.getPathIterator ( null ), FLATNESS );
final float[] points = new float[ 6 ];
float moveX = 0;
float moveY = 0;
float lastX = 0;
float lastY = 0;
float thisX;
float thisY;
int type;
float next = 0;
while ( !it.isDone () )
{
type = it.currentSegment ( points );
switch ( type )
{
case PathIterator.SEG_MOVETO:
moveX = lastX = randomize ( points[ 0 ] );
moveY = lastY = randomize ( points[ 1 ] );
result.moveTo ( moveX, moveY );
next = 0;
break;
case PathIterator.SEG_CLOSE:
points[ 0 ] = moveX;
points[ 1 ] = moveY;
// Fall into....
case PathIterator.SEG_LINETO:
thisX = randomize ( points[ 0 ] );
thisY = randomize ( points[ 1 ] );
final float dx = thisX - lastX;
final float dy = thisY - lastY;
final float distance = ( float ) Math.sqrt ( dx * dx + dy * dy );
if ( distance >= next )
{
final float r = 1.0f / distance;
while ( distance >= next )
{
final float x = lastX + next * dx * r;
final float y = lastY + next * dy * r;
result.lineTo ( randomize ( x ), randomize ( y ) );
next += detail;
}
}
next -= distance;
lastX = thisX;
lastY = thisY;
break;
}
it.next ();
}
return result;
}
private float randomize ( final float x )
{
return x + ( float ) Math.random () * amplitude * 2 - 1;
}
}
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