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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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
*
* http://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.
*/
/* $Id$ */
package org.apache.fop.traits;
import java.awt.Color;
import java.io.Serializable;
import java.util.StringTokenizer;
import org.apache.fop.apps.FOUserAgent;
import org.apache.fop.fo.Constants;
import org.apache.fop.fo.expr.PropertyException;
import org.apache.fop.util.ColorUtil;
/**
* Border properties.
* Class to store border trait propties for the area tree.
*/
public class BorderProps implements Serializable {
/** Separate border model */
public static final int SEPARATE = 0;
/** Collapsing border model, for borders inside a table */
public static final int COLLAPSE_INNER = 1;
/** Collapsing border model, for borders at the table's outer border */
public static final int COLLAPSE_OUTER = 2;
/** Border style (one of EN_*) */
public int style; // Enum for border style
/** Border color */
public Color color;
/** Border width */
public int width;
/** Border mode (one of SEPARATE, COLLAPSE_INNER and COLLAPSE_OUTER) */
public int mode;
/**
* Constructs a new BorderProps instance.
* @param style border style (one of EN_*)
* @param width border width
* @param color border color
* @param mode border mode ((one of SEPARATE, COLLAPSE_INNER and COLLAPSE_OUTER)
*/
public BorderProps(int style, int width, Color color, int mode) {
this.style = style;
this.width = width;
this.color = color;
this.mode = mode;
}
/**
* Constructs a new BorderProps instance.
* @param style border style (one of the XSL enum values for border style)
* @param width border width
* @param color border color
* @param mode border mode ((one of SEPARATE, COLLAPSE_INNER and COLLAPSE_OUTER)
*/
public BorderProps(String style, int width, Color color, int mode) {
this(getConstantForStyle(style), width, color, mode);
}
/**
* @param bp the border properties or null
* @return the effective width of the clipped part of the border
*/
public static int getClippedWidth(BorderProps bp) {
if ((bp != null) && (bp.mode != SEPARATE)) {
return bp.width / 2;
} else {
return 0;
}
}
private String getStyleString() {
switch (style) {
case Constants.EN_NONE: return "none";
case Constants.EN_HIDDEN: return "hidden";
case Constants.EN_DOTTED: return "dotted";
case Constants.EN_DASHED: return "dashed";
case Constants.EN_SOLID: return "solid";
case Constants.EN_DOUBLE: return "double";
case Constants.EN_GROOVE: return "groove";
case Constants.EN_RIDGE: return "ridge";
case Constants.EN_INSET: return "inset";
case Constants.EN_OUTSET: return "outset";
default: throw new IllegalStateException("Illegal border style: " + style);
}
}
private static int getConstantForStyle(String style) {
if ("none".equalsIgnoreCase(style)) {
return Constants.EN_NONE;
} else if ("hidden".equalsIgnoreCase(style)) {
return Constants.EN_HIDDEN;
} else if ("dotted".equalsIgnoreCase(style)) {
return Constants.EN_DOTTED;
} else if ("dashed".equalsIgnoreCase(style)) {
return Constants.EN_DASHED;
} else if ("solid".equalsIgnoreCase(style)) {
return Constants.EN_SOLID;
} else if ("double".equalsIgnoreCase(style)) {
return Constants.EN_DOUBLE;
} else if ("groove".equalsIgnoreCase(style)) {
return Constants.EN_GROOVE;
} else if ("ridge".equalsIgnoreCase(style)) {
return Constants.EN_RIDGE;
} else if ("inset".equalsIgnoreCase(style)) {
return Constants.EN_INSET;
} else if ("outset".equalsIgnoreCase(style)) {
return Constants.EN_OUTSET;
} else {
throw new IllegalStateException("Illegal border style: " + style);
}
}
/** {@inheritDoc} */
public int hashCode() {
return toString().hashCode();
}
/** {@inheritDoc} */
public boolean equals(Object obj) {
if (obj == null) {
return false;
} else if (obj == this) {
return true;
} else {
if (obj instanceof BorderProps) {
BorderProps other = (BorderProps)obj;
return (style == other.style)
&& color.equals(other.color)
&& width == other.width
&& mode == other.mode;
}
}
return false;
}
/**
* Returns a BorderProps represtation of a string of the format as written by
* BorderProps.toString().
* @param foUserAgent FOP user agent caching ICC profiles
* @param s the string
* @return a BorderProps instance
*/
public static BorderProps valueOf(FOUserAgent foUserAgent, String s) {
if (s.startsWith("(") && s.endsWith(")")) {
s = s.substring(1, s.length() - 1);
StringTokenizer st = new StringTokenizer(s, ",");
String style = st.nextToken();
String color = st.nextToken();
int width = Integer.parseInt(st.nextToken());
int mode = SEPARATE;
if (st.hasMoreTokens()) {
String ms = st.nextToken();
if ("collapse-inner".equalsIgnoreCase(ms)) {
mode = COLLAPSE_INNER;
} else if ("collapse-outer".equalsIgnoreCase(ms)) {
mode = COLLAPSE_OUTER;
}
}
Color c;
try {
c = ColorUtil.parseColorString(foUserAgent, color);
} catch (PropertyException e) {
throw new IllegalArgumentException(e.getMessage());
}
return new BorderProps(style, width, c, mode);
} else {
throw new IllegalArgumentException("BorderProps must be surrounded by parentheses");
}
}
/** {@inheritDoc} */
public String toString() {
StringBuffer sbuf = new StringBuffer();
sbuf.append('(');
sbuf.append(getStyleString());
sbuf.append(',');
sbuf.append(ColorUtil.colorToString(color));
sbuf.append(',');
sbuf.append(width);
if (mode != SEPARATE) {
sbuf.append(',');
if (mode == COLLAPSE_INNER) {
sbuf.append("collapse-inner");
} else {
sbuf.append("collapse-outer");
}
}
sbuf.append(')');
return sbuf.toString();
}
}
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