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package pt.tumba.parser.swf;
import com.anotherbigidea.flash.SWFConstants;
/**
* A Transformation matrix that has translation coordinates in pixels
*
*@author unknown
*@created 15 de Setembro de 2002
*/
public class Transform extends Matrix {
/**
* Copy an existing matrix
*
*@param matrix Description of the Parameter
*/
public Transform(Matrix matrix) {
super(matrix);
}
/**
* An identity transform
*/
public Transform() { }
/**
* A transform that only translates
*
*@param translateX Description of the Parameter
*@param translateY Description of the Parameter
*/
public Transform(double translateX, double translateY) {
super(translateX, translateY);
}
/**
* A transform that rotates and translates
*
*@param radians Description of the Parameter
*@param translateX Description of the Parameter
*@param translateY Description of the Parameter
*/
public Transform(double radians, double translateX, double translateY) {
this(radians, 1.0, 1.0, translateX, translateY);
}
/**
* A transform that scales and translates
*
*@param scaleX Description of the Parameter
*@param scaleY Description of the Parameter
*@param translateX Description of the Parameter
*@param translateY Description of the Parameter
*/
public Transform(double scaleX, double scaleY,
double translateX, double translateY) {
super(scaleX, scaleY, 0.0, 0.0, translateX, translateY);
}
/**
* A transform that rotates, scales and translates
*
*@param radians Description of the Parameter
*@param scaleX Description of the Parameter
*@param scaleY Description of the Parameter
*@param translateX Description of the Parameter
*@param translateY Description of the Parameter
*/
public Transform(double radians,
double scaleX, double scaleY,
double translateX, double translateY) {
super(scaleX * Math.cos(radians),
scaleY * Math.cos(radians),
Math.sin(radians),
-Math.sin(radians),
translateX, translateY);
}
/**
* Specify all the matrix components
*
*@param scaleX Description of the Parameter
*@param scaleY Description of the Parameter
*@param skew0 Description of the Parameter
*@param skew1 Description of the Parameter
*@param translateX Description of the Parameter
*@param translateY Description of the Parameter
*/
public Transform(double scaleX, double scaleY,
double skew0, double skew1,
double translateX, double translateY) {
super(scaleX, scaleY, skew0, skew1, translateX, translateY);
}
/**
* Gets the translateX attribute of the Transform object
*
*@return The translateX value
*/
public double getTranslateX() {
return translateX / (double) SWFConstants.TWIPS;
}
/**
* Gets the translateY attribute of the Transform object
*
*@return The translateY value
*/
public double getTranslateY() {
return translateY / (double) SWFConstants.TWIPS;
}
/**
* Sets the translateX attribute of the Transform object
*
*@param translateX The new translateX value
*/
public void setTranslateX(double translateX) {
this.translateX = translateX * (double) SWFConstants.TWIPS;
}
/**
* Sets the translateY attribute of the Transform object
*
*@param translateY The new translateY value
*/
public void setTranslateY(double translateY) {
this.translateY = translateY * (double) SWFConstants.TWIPS;
}
}
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