com.alee.extended.svg.SvgTransform Maven / Gradle / Ivy
/*
* 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.extended.svg;
import com.alee.utils.TextUtils;
import com.thoughtworks.xstream.annotations.XStreamAlias;
import com.thoughtworks.xstream.annotations.XStreamAsAttribute;
import java.awt.*;
import java.awt.geom.Point2D;
/**
* Adds or replaces existing transform on the target {@link com.kitfox.svg.SVGElement}.
*
* @author Mikle Garin
*/
@XStreamAlias ( "SvgTransform" )
public class SvgTransform extends AbstractSvgAttributeAdjustment
{
/**
* Icon translation.
*/
@XStreamAsAttribute
protected Point2D translate;
/**
* Icon scaling.
*/
@XStreamAsAttribute
protected Point2D scale;
/**
* Icon rotation.
*/
@XStreamAsAttribute
protected Double rotate;
@Override
protected String getAttribute ( final SvgIcon icon )
{
return SvgElements.TRANSFORM;
}
@Override
protected String getValue ( final SvgIcon icon )
{
String transform = null;
if ( translate != null || scale != null || rotate != null )
{
transform = "";
if ( translate != null )
{
transform += "translate(" + translate.getX () + " " + translate.getY () + ")";
}
if ( scale != null )
{
if ( !TextUtils.isEmpty ( transform ) )
{
transform += " ";
}
final Dimension ps = icon.getPreferredSize ();
final double x = ( ps.width - ps.width * scale.getX () ) / 2;
final double y = ( ps.height - ps.height * scale.getY () ) / 2;
transform += "translate(" + x + " " + y + ") scale(" + scale.getX () + " " + scale.getY () + ")";
}
if ( rotate != null )
{
if ( !TextUtils.isEmpty ( transform ) )
{
transform += " ";
}
final Dimension ps = icon.getPreferredSize ();
transform += "rotate(" + rotate + " " + ps.width / 2 + " " + ps.height / 2 + ")";
}
}
return transform;
}
}