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A headless browser intended for use in testing web-based applications.
/*
* Copyright (c) 2002-2022 Gargoyle Software Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.gargoylesoftware.htmlunit.javascript.host.svg;
import static com.gargoylesoftware.htmlunit.javascript.configuration.SupportedBrowser.CHROME;
import static com.gargoylesoftware.htmlunit.javascript.configuration.SupportedBrowser.EDGE;
import static com.gargoylesoftware.htmlunit.javascript.configuration.SupportedBrowser.FF;
import static com.gargoylesoftware.htmlunit.javascript.configuration.SupportedBrowser.FF_ESR;
import com.gargoylesoftware.htmlunit.javascript.SimpleScriptable;
import com.gargoylesoftware.htmlunit.javascript.configuration.JsxClass;
import com.gargoylesoftware.htmlunit.javascript.configuration.JsxConstructor;
import com.gargoylesoftware.htmlunit.javascript.configuration.JsxFunction;
import com.gargoylesoftware.htmlunit.javascript.configuration.JsxGetter;
import com.gargoylesoftware.htmlunit.javascript.configuration.JsxSetter;
import com.gargoylesoftware.htmlunit.javascript.host.Window;
import net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime;
/**
* A JavaScript object for {@code SVGMatrix}.
* @see MDN doc
* @author Marc Guillemot
* @author Ronald Brill
*/
@JsxClass
public class SVGMatrix extends SimpleScriptable {
private double shearX_;
private double shearY_;
private double scaleX_;
private double scaleY_;
private double translateX_;
private double translateY_;
/**
* Creates an instance.
*/
@JsxConstructor({CHROME, EDGE, FF, FF_ESR})
public SVGMatrix() {
shearX_ = 0.0;
shearY_ = 0.0;
scaleX_ = 1.0;
scaleY_ = 1.0;
translateX_ = 0.0;
translateY_ = 0.0;
}
/**
* Instantiates and configure scope and prototype.
* @param scope the parent scope
*/
public SVGMatrix(final Window scope) {
this();
setParentScope(scope);
setPrototype(getPrototype(getClass()));
}
/**
* Gets the a entry of the matrix.
* @return the field
*/
@JsxGetter
public double getA() {
return scaleX_;
}
/**
* Gets the b entry of the matrix.
* @return the field
*/
@JsxGetter
public double getB() {
return shearY_;
}
/**
* Gets the c entry of the matrix.
* @return the field
*/
@JsxGetter
public double getC() {
return shearX_;
}
/**
* Gets the d entry of the matrix.
* @return the field
*/
@JsxGetter
public double getD() {
return scaleY_;
}
/**
* Gets the e entry of the matrix.
* @return the field
*/
@JsxGetter
public double getE() {
return translateX_;
}
/**
* Gets the f entry of the matrix.
* @return the field
*/
@JsxGetter
public double getF() {
return translateY_;
}
/**
* Sets the a entry of the matrix.
* @param newValue the new value for the field
*/
@JsxSetter
public void setA(final double newValue) {
scaleX_ = newValue;
}
/**
* Sets the b entry of the matrix.
* @param newValue the new value for the field
*/
@JsxSetter
public void setB(final double newValue) {
shearY_ = newValue;
}
/**
* Sets the c entry of the matrix.
* @param newValue the new value for the field
*/
@JsxSetter
public void setC(final double newValue) {
shearX_ = newValue;
}
/**
* Sets the d entry of the matrix.
* @param newValue the new value for the field
*/
@JsxSetter
public void setD(final double newValue) {
scaleY_ = newValue;
}
/**
* Sets the e entry of the matrix.
* @param newValue the new value for the field
*/
@JsxSetter
public void setE(final double newValue) {
translateX_ = newValue;
}
/**
* Sets the f entry of the matrix.
* @param newValue the new value for the field
*/
@JsxSetter
public void setF(final double newValue) {
translateY_ = newValue;
}
/**
* Transforms the matrix.
* @return the resulting matrix
*/
@JsxFunction
public SVGMatrix flipX() {
final SVGMatrix result = new SVGMatrix(getWindow());
result.shearX_ = shearX_;
result.shearY_ = -shearY_;
result.scaleX_ = -scaleX_;
result.scaleY_ = scaleY_;
result.translateX_ = translateX_;
result.translateY_ = translateY_;
return result;
}
/**
* Transforms the matrix.
* @return the resulting matrix
*/
@JsxFunction
public SVGMatrix flipY() {
final SVGMatrix result = new SVGMatrix(getWindow());
result.shearX_ = -shearX_;
result.shearY_ = shearY_;
result.scaleX_ = scaleX_;
result.scaleY_ = -scaleY_;
result.translateX_ = translateX_;
result.translateY_ = translateY_;
return result;
}
/**
* Transforms the matrix.
* @return the resulting matrix
*/
@JsxFunction
public SVGMatrix inverse() {
final double determinant = scaleX_ * scaleY_ - shearX_ * shearY_;
if (Math.abs(determinant) < 1E-10) {
throw ScriptRuntime.constructError("Error",
"Failed to execute 'inverse' on 'SVGMatrix': The matrix is not invertible.");
}
final SVGMatrix result = new SVGMatrix(getWindow());
result.shearX_ = -shearX_ / determinant;
result.shearY_ = -shearY_ / determinant;
result.scaleX_ = scaleY_ / determinant;
result.scaleY_ = scaleX_ / determinant;
result.translateX_ = (shearX_ * translateY_ - scaleY_ * translateX_) / determinant;
result.translateY_ = (shearY_ * translateX_ - scaleX_ * translateY_) / determinant;
return result;
}
/**
* Transforms the matrix.
* @param by the matrix to multiply by
* @return the resulting matrix
*/
@JsxFunction
public SVGMatrix multiply(final SVGMatrix by) {
final SVGMatrix result = new SVGMatrix(getWindow());
result.shearX_ = by.shearX_ * scaleX_ + by.scaleY_ * shearX_;
result.shearY_ = by.scaleX_ * shearY_ + by.shearY_ * scaleY_;
result.scaleX_ = by.scaleX_ * scaleX_ + by.shearY_ * shearX_;
result.scaleY_ = by.shearX_ * shearY_ + by.scaleY_ * scaleY_;
result.translateX_ = by.translateX_ * scaleX_ + by.translateY_ * shearX_ + translateX_;
result.translateY_ = by.translateX_ * shearY_ + by.translateY_ * scaleY_ + translateY_;
return result;
}
/**
* Rotates the matrix.
* @param angle the rotation angle
* @return the resulting matrix
*/
@JsxFunction
public SVGMatrix rotate(final double angle) {
final double theta = Math.toRadians(angle);
final double sin = Math.sin(theta);
final double cos = Math.cos(theta);
final SVGMatrix result = new SVGMatrix(getWindow());
result.shearX_ = -sin * scaleX_ + cos * shearX_;
result.shearY_ = cos * shearY_ + sin * scaleY_;
result.scaleX_ = cos * scaleX_ + sin * shearX_;
result.scaleY_ = -sin * shearY_ + cos * scaleY_;
result.translateX_ = translateX_;
result.translateY_ = translateY_;
return result;
}
/**
* Transforms the matrix.
* @param x the x-coordinate of the vector
* @param y the y-coordinate of the vector
* @return the resulting matrix
*/
@JsxFunction
public SVGMatrix rotateFromVector(final double x, final double y) {
if (x == 0 || y == 0) {
throw ScriptRuntime.constructError("Error",
"Failed to execute 'rotateFromVector' on 'SVGMatrix': Arguments cannot be zero.");
}
final double theta = Math.atan2(y, x);
final double sin = Math.sin(theta);
final double cos = Math.cos(theta);
final SVGMatrix result = new SVGMatrix(getWindow());
result.shearX_ = -sin * scaleX_ + cos * shearX_;
result.shearY_ = cos * shearY_ + sin * scaleY_;
result.scaleX_ = cos * scaleX_ + sin * shearX_;
result.scaleY_ = -sin * shearY_ + cos * scaleY_;
result.translateX_ = translateX_;
result.translateY_ = translateY_;
return result;
}
/**
* Transforms the matrix.
* @param factor the scale factor
* @return the resulting matrix
*/
@JsxFunction
public SVGMatrix scale(final double factor) {
return scaleNonUniform(factor, factor);
}
/**
* Transforms the matrix.
* @param factorX the factor for the x-axis
* @param factorY the factor for the y-axis
* @return the resulting matrix
*/
@JsxFunction
public SVGMatrix scaleNonUniform(final double factorX, final double factorY) {
final SVGMatrix result = new SVGMatrix(getWindow());
result.shearX_ = factorY * shearX_;
result.shearY_ = factorX * shearY_;
result.scaleX_ = factorX * scaleX_;
result.scaleY_ = factorY * scaleY_;
result.translateX_ = translateX_;
result.translateY_ = translateY_;
return result;
}
/**
* Transforms the matrix.
* @param angle the skew angle
* @return the resulting matrix
*/
@JsxFunction
public SVGMatrix skewX(final double angle) {
final double shear = Math.tan(Math.toRadians(angle));
final SVGMatrix result = new SVGMatrix(getWindow());
result.shearX_ = shear * scaleX_ + shearX_;
result.shearY_ = shearY_;
result.scaleX_ = scaleX_;
result.scaleY_ = shear * shearY_ + scaleY_;
result.translateX_ = translateX_;
result.translateY_ = translateY_;
return result;
}
/**
* Transforms the matrix.
* @param angle the skew angle
* @return the resulting matrix
*/
@JsxFunction
public SVGMatrix skewY(final double angle) {
final double shear = Math.tan(Math.toRadians(angle));
final SVGMatrix result = new SVGMatrix(getWindow());
result.shearX_ = shearX_;
result.shearY_ = shearY_ + shear * scaleY_;
result.scaleX_ = scaleX_ + shear * shearX_;
result.scaleY_ = scaleY_;
result.translateX_ = translateX_;
result.translateY_ = translateY_;
return result;
}
/**
* Translates the matrix.
* @param x the distance along the x-axis
* @param y the distance along the y-axis
* @return the resulting matrix
*/
@JsxFunction
public SVGMatrix translate(final double x, final double y) {
final SVGMatrix result = new SVGMatrix(getWindow());
result.shearX_ = shearX_;
result.shearY_ = shearY_;
result.scaleX_ = scaleX_;
result.scaleY_ = scaleY_;
result.translateX_ = x * scaleX_ + y * shearX_ + translateX_;
result.translateY_ = x * shearY_ + y * scaleY_ + translateY_;
return result;
}
}
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