toni@1129: /**
toni@1302:  * Back 2 Browser Bytecode Translator
toni@1302:  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
toni@1129:  *
toni@1302:  * This program is free software: you can redistribute it and/or modify
toni@1302:  * it under the terms of the GNU General Public License as published by
toni@1302:  * the Free Software Foundation, version 2 of the License.
toni@1129:  *
toni@1302:  * This program is distributed in the hope that it will be useful,
toni@1302:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
toni@1302:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
toni@1302:  * GNU General Public License for more details.
toni@1129:  *
toni@1302:  * You should have received a copy of the GNU General Public License
toni@1302:  * along with this program. Look for COPYING file in the top folder.
toni@1302:  * If not, see http://opensource.org/licenses/GPL-2.0.
toni@1129:  */
toni@1129: package net.java.html.canvas;
toni@1129: 
toni@1150: import java.util.HashMap;
toni@1150: import java.util.Objects;
toni@1150: 
toni@1129: /**
toni@1154:  * Style for Stroke and Fill of GraphicsContext. Styles are created using
toni@1154:  * GraphicsContexts factory methods. If the Implementation supports it, native
toni@1154:  * Styles will be cached for performance reasons. This happens the first time
toni@1154:  * the Style is actually used.
toni@1129:  *
toni@1129:  * @author antonepple
toni@1129:  */
toni@1132: public class Style {
toni@1132: 
toni@1154:     Object cached;
toni@1141:     private int cacheHash;
toni@1141: 
toni@1132:     Style() {
toni@1132:     }
toni@1141: 
toni@1141:     void cache(Object toCache) {
toni@1141:         cacheHash = hashCode();
toni@1141:         this.cached = toCache;
toni@1141:     }
toni@1141: 
toni@1141:     private boolean isCached() {
toni@1141:         return cacheHash == hashCode();
toni@1141:     }
toni@1141: 
toni@1141:     Object getCached() {
toni@1141:         return isCached() ? cached : null;
toni@1141:     }
toni@1150: 
toni@1150:     public static final class Pattern extends Style {
toni@1150: 
toni@1150:         private Image imageResource;
toni@1150:         private String repeat;
toni@1150: 
toni@1270:         public Pattern(Image imageResource, String repeat) {
toni@1150:             this.imageResource = imageResource;
toni@1150:             this.repeat = repeat;
toni@1150:         }
toni@1150: 
toni@1150:         public Image getImageResource() {
toni@1150:             return imageResource;
toni@1150:         }
toni@1150: 
toni@1150:         public void setImageResource(Image imageResource) {
toni@1150:             this.imageResource = imageResource;
toni@1150:         }
toni@1150: 
toni@1150:         public String getRepeat() {
toni@1150:             return repeat;
toni@1150:         }
toni@1150: 
toni@1150:         public void setRepeat(String repeat) {
toni@1150:             this.repeat = repeat;
toni@1150:         }
toni@1150:     }
toni@1150: 
toni@1150:     public static final class Color extends Style {
toni@1150: 
toni@1150:         private String web;
toni@1150: 
toni@1150:         /**
toni@1150:          * Creates an RGB color specified with an HTML or CSS attribute string.
toni@1150:          *
toni@1150:          * @param webColor Colordefined as
toni@1150:          */
toni@1265:         public Color(String webColor) {
toni@1157:             this.web = webColor;
toni@1150:         }
toni@1150: 
toni@1150:         public String getAsString() {
toni@1150:             return web;
toni@1150:         }
toni@1150:     }
toni@1150: 
toni@1150:     public static class LinearGradient extends Style {
toni@1150: 
toni@1150:         private HashMap<Double, String> stops;
toni@1150:         private double x0, y0, x1, y1;
toni@1150: 
toni@1150:         LinearGradient(double x0, double y0, double x1, double y1) {
toni@1150:             this.x0 = x0;
toni@1150:             this.y0 = y0;
toni@1150:             this.x1 = x1;
toni@1150:             this.y1 = y1;
toni@1150:         }
toni@1150: 
toni@1150:         void addColorStop(double position, String color) {
toni@1150:             if (stops == null) {
toni@1150:                 stops = new HashMap<>();
toni@1150:             }
toni@1150:             stops.put(position, color);
toni@1150:         }
toni@1150: 
toni@1150:         public HashMap<Double, String> getStops() {
toni@1150:             return stops;
toni@1150:         }
toni@1150: 
toni@1150:         public void setStops(HashMap<Double, String> stops) {
toni@1150:             this.stops = stops;
toni@1150:         }
toni@1150: 
toni@1150:         public double getX0() {
toni@1150:             return x0;
toni@1150:         }
toni@1150: 
toni@1150:         public void setX0(double x0) {
toni@1150:             this.x0 = x0;
toni@1150:         }
toni@1150: 
toni@1150:         public double getY0() {
toni@1150:             return y0;
toni@1150:         }
toni@1150: 
toni@1150:         public void setY0(double y0) {
toni@1150:             this.y0 = y0;
toni@1150:         }
toni@1150: 
toni@1150:         public double getX1() {
toni@1150:             return x1;
toni@1150:         }
toni@1150: 
toni@1150:         public void setX1(double x1) {
toni@1150:             this.x1 = x1;
toni@1150:         }
toni@1150: 
toni@1150:         public double getY1() {
toni@1150:             return y1;
toni@1150:         }
toni@1150: 
toni@1150:         public void setY1(double y1) {
toni@1150:             this.y1 = y1;
toni@1150:         }
toni@1150: 
toni@1150:         @Override
toni@1150:         public int hashCode() {
toni@1150:             int hash = 7;
toni@1150:             hash = 29 * hash + Objects.hashCode(this.stops);
toni@1150:             hash = 29 * hash + (int) (Double.doubleToLongBits(this.x0) ^ (Double.doubleToLongBits(this.x0) >>> 32));
toni@1150:             hash = 29 * hash + (int) (Double.doubleToLongBits(this.y0) ^ (Double.doubleToLongBits(this.y0) >>> 32));
toni@1150:             hash = 29 * hash + (int) (Double.doubleToLongBits(this.x1) ^ (Double.doubleToLongBits(this.x1) >>> 32));
toni@1150:             hash = 29 * hash + (int) (Double.doubleToLongBits(this.y1) ^ (Double.doubleToLongBits(this.y1) >>> 32));
toni@1150:             return hash;
toni@1150:         }
toni@1150: 
toni@1150:         @Override
toni@1150:         public boolean equals(Object obj) {
toni@1150:             if (obj == null) {
toni@1150:                 return false;
toni@1150:             }
toni@1150:             if (getClass() != obj.getClass()) {
toni@1150:                 return false;
toni@1150:             }
toni@1150:             final LinearGradient other = (LinearGradient) obj;
toni@1150:             if (!Objects.equals(this.stops, other.stops)) {
toni@1150:                 return false;
toni@1150:             }
toni@1150:             if (Double.doubleToLongBits(this.x0) != Double.doubleToLongBits(other.x0)) {
toni@1150:                 return false;
toni@1150:             }
toni@1150:             if (Double.doubleToLongBits(this.y0) != Double.doubleToLongBits(other.y0)) {
toni@1150:                 return false;
toni@1150:             }
toni@1150:             if (Double.doubleToLongBits(this.x1) != Double.doubleToLongBits(other.x1)) {
toni@1150:                 return false;
toni@1150:             }
toni@1150:             if (Double.doubleToLongBits(this.y1) != Double.doubleToLongBits(other.y1)) {
toni@1150:                 return false;
toni@1150:             }
toni@1150:             return true;
toni@1150:         }
toni@1150:     }
toni@1150: 
toni@1150:     public static final class RadialGradient extends LinearGradient {
toni@1150: 
toni@1150:         private double r0, r1;
toni@1150: 
toni@1150:         RadialGradient(double x0, double y0, double r0, double x1, double y1, double r1) {
toni@1150:             super(x0, y0, x1, y1);
toni@1150:             this.r0 = r0;
toni@1150:             this.r1 = r1;
toni@1150:         }
toni@1150: 
toni@1150:         public double getR0() {
toni@1150:             return r0;
toni@1150:         }
toni@1150: 
toni@1150:         public void setR0(double r0) {
toni@1150:             this.r0 = r0;
toni@1150:         }
toni@1150: 
toni@1150:         public double getR1() {
toni@1150:             return r1;
toni@1150:         }
toni@1150: 
toni@1150:         public void setR1(double r1) {
toni@1150:             this.r1 = r1;
toni@1150:         }
toni@1150: 
toni@1150:         @Override
toni@1150:         public int hashCode() {
toni@1150:             int hash = super.hashCode();
toni@1150:             hash = 17 * hash + (int) (Double.doubleToLongBits(this.r0) ^ (Double.doubleToLongBits(this.r0) >>> 32));
toni@1150:             hash = 17 * hash + (int) (Double.doubleToLongBits(this.r1) ^ (Double.doubleToLongBits(this.r1) >>> 32));
toni@1150: 
toni@1150:             return hash;
toni@1150:         }
toni@1150: 
toni@1150:         @Override
toni@1150:         public boolean equals(Object obj) {
toni@1150:             if (obj == null) {
toni@1150:                 return false;
toni@1150:             }
toni@1150:             if (getClass() != obj.getClass()) {
toni@1150:                 return false;
toni@1150:             }
toni@1150:             if (!super.equals(obj)) {
toni@1150:                 return false;
toni@1150:             }
toni@1150:             final RadialGradient other = (RadialGradient) obj;
toni@1150:             if (Double.doubleToLongBits(this.r0) != Double.doubleToLongBits(other.r0)) {
toni@1150:                 return false;
toni@1150:             }
toni@1150:             if (Double.doubleToLongBits(this.r1) != Double.doubleToLongBits(other.r1)) {
toni@1150:                 return false;
toni@1150:             }
toni@1154:             if ((this.getCached() == null) != (other.getCached() == null)) {
toni@1154:                 return false;
toni@1154:             }
toni@1150:             return true;
toni@1150:         }
toni@1150:     }
toni@1129: }