/*
    GNU GENERAL LICENSE
    Copyright (C) 2006 The Lobo Project. Copyright (C) 2014 - 2017 Lobo Evolution

    This program 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
    verion 3 of the License, or (at your option) any later version.

    This program 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 License for more details.

    You should have received a copy of the GNU General Public
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
    

    Contact info: lobochief@users.sourceforge.net; ivan.difrancesco@yahoo.it
 */
package org.lobobrowser.html.svgimpl;

import org.lobobrowser.w3c.svg.SVGMatrix;
import org.lobobrowser.w3c.svg.SVGTransform;

public class SVGTransformImpl implements SVGTransform {
	
	private short transformType;
	private SVGMatrix matrix;
	
	public SVGTransformImpl() {
		this.transformType = SVGTransform.SVG_TRANSFORM_UNKNOWN;
	}
	
	public SVGTransformImpl(short transformType) {
		this.transformType = transformType;
	}

	@Override
	public short getType() {
		return transformType;
	}

	@Override
	public SVGMatrix getMatrix() {
		return matrix;
	}

	@Override
	public float getAngle() {
		// TODO Auto-generated method stub
		return 0;
	}

	@Override
	public void setMatrix(SVGMatrix matrix) {
		this.matrix = matrix; 
		
	}

	@Override
	public void setTranslate(float tx, float ty) {
		this.transformType = SVGTransform.SVG_TRANSFORM_TRANSLATE;
		this.matrix = new SVGMatrixImpl(1, 0, 0, 1, tx, ty);
		
	}

	@Override
	public void setScale(float sx, float sy) {
		this.transformType = SVGTransform.SVG_TRANSFORM_SCALE;
		this.matrix = new SVGMatrixImpl(sx, 0.0f, 0.0f, sy, 0.0f, 0.0f);
	}

	@Override
	public void setRotate(float angle, float cx, float cy) {
		this.transformType = SVGTransform.SVG_TRANSFORM_ROTATE;
		this.matrix = new SVGMatrixImpl(angle, cx, cy,  0.0f, 0.0f, 0.0f);
	}

	@Override
	public void setSkewX(float angle) {
		this.transformType = SVGTransform.SVG_TRANSFORM_SKEWX;
		this.matrix = new SVGMatrixImpl(1.0f, 0.0f, (float) Math.tan(angle), 1.0f, 0.0f, 0.0f);

	}

	@Override
	public void setSkewY(float angle) {
		this.transformType = SVGTransform.SVG_TRANSFORM_SKEWY;
		this.matrix = new SVGMatrixImpl(1.0f, (float) Math.tan(angle), 0.0f, 1.0f, 0.0f, 0.0f);
		
	}
}