- /*
- * 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.area;
-
- import java.awt.Color;
- import java.io.Serializable;
-
- import org.apache.xmlgraphics.image.loader.ImageInfo;
-
- import org.apache.fop.fo.Constants;
- import org.apache.fop.fonts.FontTriplet;
- import org.apache.fop.traits.BorderProps;
- import org.apache.fop.util.ColorUtil;
-
- // properties should be serialized by the holder
- /**
- * Area traits used for rendering.
- * This class represents an area trait that specifies a value for rendering.
- */
- public final class Trait implements Serializable {
-
- private static final long serialVersionUID = 3234280285391611437L;
-
- private Trait() {
- }
-
- /**
- * Id reference line, not resolved.
- * not sure if this is needed.
- */
- //public static final Integer ID_LINK = new Integer(0);
-
- /**
- * Internal link trait.
- * Contains the PageViewport key and the PROD_ID of the target area
- */
- public static final Integer INTERNAL_LINK = new Integer(1);
-
- /**
- * External link. A URL link to an external resource.
- */
- public static final Integer EXTERNAL_LINK = new Integer(2);
-
- /**
- * The font triplet for the current font.
- */
- public static final Integer FONT = new Integer(3);
-
- /**
- * Font size for the current font.
- */
- public static final Integer FONT_SIZE = new Integer(4);
-
- /**
- * The current color.
- */
- public static final Integer COLOR = new Integer(7);
-
- /**
- * The ID of the FO that produced an area.
- */
- public static final Integer PROD_ID = new Integer(8);
-
- /**
- * Background trait for an area.
- */
- public static final Integer BACKGROUND = new Integer(9);
-
- /**
- * Underline trait used when rendering inline parent.
- */
- public static final Integer UNDERLINE = new Integer(10);
-
- /**
- * Overline trait used when rendering inline parent.
- */
- public static final Integer OVERLINE = new Integer(11);
-
- /**
- * Linethrough trait used when rendering inline parent.
- */
- public static final Integer LINETHROUGH = new Integer(12);
-
- /**
- * Shadow offset.
- */
- //public static final Integer OFFSET = new Integer(13);
-
- /**
- * The shadow for text.
- */
- //public static final Integer SHADOW = new Integer(14);
-
- /**
- * The border start.
- */
- public static final Integer BORDER_START = new Integer(15);
-
- /**
- * The border end.
- */
- public static final Integer BORDER_END = new Integer(16);
-
- /**
- * The border before.
- */
- public static final Integer BORDER_BEFORE = new Integer(17);
-
- /**
- * The border after.
- */
- public static final Integer BORDER_AFTER = new Integer(18);
-
- /**
- * The padding start.
- */
- public static final Integer PADDING_START = new Integer(19);
-
- /**
- * The padding end.
- */
- public static final Integer PADDING_END = new Integer(20);
-
- /**
- * The padding before.
- */
- public static final Integer PADDING_BEFORE = new Integer(21);
-
- /**
- * The padding after.
- */
- public static final Integer PADDING_AFTER = new Integer(22);
-
- /**
- * The space start.
- */
- public static final Integer SPACE_START = new Integer(23);
-
- /**
- * The space end.
- */
- public static final Integer SPACE_END = new Integer(24);
-
- /**
- * break before
- */
- //public static final Integer BREAK_BEFORE = new Integer(25);
-
- /**
- * break after
- */
- //public static final Integer BREAK_AFTER = new Integer(26);
-
- /**
- * The start-indent trait.
- */
- public static final Integer START_INDENT = new Integer(27);
-
- /**
- * The end-indent trait.
- */
- public static final Integer END_INDENT = new Integer(28);
-
- /** The space-before trait. */
- public static final Integer SPACE_BEFORE = new Integer(29);
-
- /** The space-after trait. */
- public static final Integer SPACE_AFTER = new Integer(30);
-
- /** The is-reference-area trait. */
- public static final Integer IS_REFERENCE_AREA = new Integer(31);
-
- /** The is-viewport-area trait. */
- public static final Integer IS_VIEWPORT_AREA = new Integer(32);
-
- /** Blinking trait used when rendering inline parent. */
- public static final Integer BLINK = new Integer(33);
-
- /** Trait for color of underline decorations when rendering inline parent. */
- public static final Integer UNDERLINE_COLOR = new Integer(34);
- /** Trait for color of overline decorations when rendering inline parent. */
- public static final Integer OVERLINE_COLOR = new Integer(35);
- /** Trait for color of linethrough decorations when rendering inline parent. */
- public static final Integer LINETHROUGH_COLOR = new Integer(36);
-
- /** The ptr trait. Used for accessibility */
- public static final Integer PTR = new Integer(37);
-
- /** Maximum value used by trait keys */
- public static final int MAX_TRAIT_KEY = 37;
-
- private static final TraitInfo[] TRAIT_INFO = new TraitInfo[MAX_TRAIT_KEY + 1];
-
- private static class TraitInfo {
- private String name;
- private Class clazz; // Class of trait data
-
- public TraitInfo(String name, Class clazz) {
- this.name = name;
- this.clazz = clazz;
- }
-
- public String getName() {
- return this.name;
- }
-
- public Class getClazz() {
- return this.clazz;
- }
- }
-
- private static void put(Integer key, TraitInfo info) {
- TRAIT_INFO[key.intValue()] = info;
- }
-
- static {
- // Create a hashmap mapping trait code to name for external representation
- //put(ID_LINK, new TraitInfo("id-link", String.class));
- put(PTR, new TraitInfo("ptr", String.class));
- put(INTERNAL_LINK, new TraitInfo("internal-link", InternalLink.class));
- put(EXTERNAL_LINK, new TraitInfo("external-link", ExternalLink.class));
- put(FONT, new TraitInfo("font", FontTriplet.class));
- put(FONT_SIZE, new TraitInfo("font-size", Integer.class));
- put(COLOR, new TraitInfo("color", Color.class));
- put(PROD_ID, new TraitInfo("prod-id", String.class));
- put(BACKGROUND, new TraitInfo("background", Background.class));
- put(UNDERLINE, new TraitInfo("underline-score", Boolean.class));
- put(UNDERLINE_COLOR, new TraitInfo("underline-score-color", Color.class));
- put(OVERLINE, new TraitInfo("overline-score", Boolean.class));
- put(OVERLINE_COLOR, new TraitInfo("overline-score-color", Color.class));
- put(LINETHROUGH, new TraitInfo("through-score", Boolean.class));
- put(LINETHROUGH_COLOR, new TraitInfo("through-score-color", Color.class));
- put(BLINK, new TraitInfo("blink", Boolean.class));
- //put(OFFSET, new TraitInfo("offset", Integer.class));
- //put(SHADOW, new TraitInfo("shadow", Integer.class));
- put(BORDER_START,
- new TraitInfo("border-start", BorderProps.class));
- put(BORDER_END,
- new TraitInfo("border-end", BorderProps.class));
- put(BORDER_BEFORE,
- new TraitInfo("border-before", BorderProps.class));
- put(BORDER_AFTER,
- new TraitInfo("border-after", BorderProps.class));
- put(PADDING_START,
- new TraitInfo("padding-start", Integer.class));
- put(PADDING_END,
- new TraitInfo("padding-end", Integer.class));
- put(PADDING_BEFORE,
- new TraitInfo("padding-before", Integer.class));
- put(PADDING_AFTER,
- new TraitInfo("padding-after", Integer.class));
- put(SPACE_START,
- new TraitInfo("space-start", Integer.class));
- put(SPACE_END,
- new TraitInfo("space-end", Integer.class));
- //put(BREAK_BEFORE,
- // new TraitInfo("break-before", Integer.class));
- //put(BREAK_AFTER,
- // new TraitInfo("break-after", Integer.class));
- put(START_INDENT,
- new TraitInfo("start-indent", Integer.class));
- put(END_INDENT,
- new TraitInfo("end-indent", Integer.class));
- put(SPACE_BEFORE,
- new TraitInfo("space-before", Integer.class));
- put(SPACE_AFTER,
- new TraitInfo("space-after", Integer.class));
- put(IS_REFERENCE_AREA,
- new TraitInfo("is-reference-area", Boolean.class));
- put(IS_VIEWPORT_AREA,
- new TraitInfo("is-viewport-area", Boolean.class));
-
- }
-
- /**
- * Get the trait name for a trait code.
- *
- * @param traitCode the trait code to get the name for
- * @return the trait name
- */
- public static String getTraitName(Object traitCode) {
- return TRAIT_INFO[((Integer)traitCode).intValue()].getName();
- }
-
- /**
- * Get the data storage class for the trait.
- *
- * @param traitCode the trait code to lookup
- * @return the class type for the trait
- */
- public static Class getTraitClass(Object traitCode) {
- return TRAIT_INFO[((Integer)traitCode).intValue()].getClazz();
- }
-
- /**
- * Class for internal link traits.
- * Stores PageViewport key and producer ID
- */
- public static class InternalLink implements Serializable {
-
- private static final long serialVersionUID = -8993505060996723039L;
-
- /** The unique key of the PageViewport. */
- private String pvKey;
-
- /** The PROD_ID of the link target */
- private String idRef;
-
- /**
- * Create an InternalLink to the given PageViewport and target ID
- *
- * @param pvKey the PageViewport key
- * @param idRef the target ID
- */
- public InternalLink(String pvKey, String idRef) {
- setPVKey(pvKey);
- setIDRef(idRef);
- }
-
- /**
- * Create an InternalLink based on the given XML attribute value.
- * This is typically called when data are read from an XML area tree.
- *
- * @param attrValue attribute value to be parsed by InternalLink.parseXMLAttribute
- */
- public InternalLink(String attrValue) {
- String[] values = parseXMLAttribute(attrValue);
- setPVKey(values[0]);
- setIDRef(values[1]);
- }
-
- /**
- * Sets the key of the targeted PageViewport.
- *
- * @param pvKey the PageViewport key
- */
- public void setPVKey(String pvKey) {
- this.pvKey = pvKey;
- }
-
- /**
- * Returns the key of the targeted PageViewport.
- *
- * @return the PageViewport key
- */
- public String getPVKey() {
- return pvKey;
- }
-
- /**
- * Sets the target ID.
- *
- * @param idRef the target ID
- */
- public void setIDRef(String idRef) {
- this.idRef = idRef;
- }
-
- /**
- * Returns the target ID.
- *
- * @return the target ID
- */
- public String getIDRef() {
- return idRef;
- }
-
- /**
- * Returns the attribute value for this object as
- * used in the area tree XML.
- *
- * @return a string of the type "(thisPVKey,thisIDRef)"
- */
- public String xmlAttribute() {
- return makeXMLAttribute(pvKey, idRef);
- }
-
- /**
- * Returns the XML attribute value for the given PV key and ID ref.
- * This value is used in the area tree XML.
- *
- * @param pvKey the PageViewport key of the link target
- * @param idRef the ID of the link target
- * @return a string of the type "(thisPVKey,thisIDRef)"
- */
- public static String makeXMLAttribute(String pvKey, String idRef) {
- return "(" + (pvKey == null ? "" : pvKey) + ","
- + (idRef == null ? "" : idRef) + ")";
- }
-
- /**
- * Parses XML attribute value from the area tree into
- * PageViewport key + IDRef strings. If the attribute value is
- * formatted like "(s1,s2)", then s1 and s2 are considered to be
- * the PV key and the IDRef, respectively.
- * Otherwise, the entire string is the PV key and the IDRef is null.
- *
- * @param attrValue the atribute value (PV key and possibly IDRef)
- * @return a 2-String array containing the PV key and the IDRef.
- * Both may be null.
- */
- public static String[] parseXMLAttribute(String attrValue) {
- String[] result = {null, null};
- if (attrValue != null) {
- int len = attrValue.length();
- if (len >= 2 && attrValue.charAt(0) == '(' && attrValue.charAt(len - 1) == ')'
- && attrValue.indexOf(',') != -1) {
- String value = attrValue.substring(1, len - 1); // remove brackets
- int delimIndex = value.indexOf(',');
- result[0] = value.substring(0, delimIndex).trim(); // PV key
- result[1] = value.substring(delimIndex + 1, value.length()).trim(); // IDRef
- } else {
- // PV key only, e.g. from old area tree XML:
- result[0] = attrValue;
- }
- }
- return result;
- }
-
- /**
- * Return the human-friendly string for debugging.
- * {@inheritDoc}
- */
- public String toString() {
- StringBuffer sb = new StringBuffer();
- sb.append("pvKey=").append(pvKey);
- sb.append(",idRef=").append(idRef);
- return sb.toString();
- }
- }
-
- /**
- * External Link trait structure
- */
- public static class ExternalLink implements Serializable {
-
- private static final long serialVersionUID = -3720707599232620946L;
-
- private String destination;
- private boolean newWindow;
-
- /**
- * Constructs an ExternalLink object with the given destination
- *
- * @param destination target of the link
- * @param newWindow true if the target should be opened in a new window
- */
- public ExternalLink(String destination, boolean newWindow) {
- this.destination = destination;
- this.newWindow = newWindow;
- }
-
- /**
- * Create an <code>ExternalLink</code> from a trait value/attribute value in the
- * area tree
- * @param traitValue the value to use (should match the result of {@link #toString()}
- * @return an <code>ExternalLink</code> instance corresponding to the given value
- */
- protected static ExternalLink makeFromTraitValue(String traitValue) {
- String dest = null;
- boolean newWindow = false;
- String[] values = traitValue.split(",");
- for (int i = 0, c = values.length; i < c; i++) {
- String v = values[i];
- if (v.startsWith("dest=")) {
- dest = v.substring(5);
- } else if (v.startsWith("newWindow=")) {
- newWindow = Boolean.valueOf(v.substring(10)).booleanValue();
- } else {
- throw new IllegalArgumentException(
- "Malformed trait value for Trait.ExternalLink: " + traitValue);
- }
- }
- return new ExternalLink(dest, newWindow);
- }
-
- /**
- * Get the target/destination of the link
- * @return the destination of the link
- */
- public String getDestination() {
- return this.destination;
- }
-
- /**
- * Check if the target has to be displayed in a new window
- * @return <code>true</code> if the target has to be displayed in a new window
- */
- public boolean newWindow() {
- return this.newWindow;
- }
-
- /**
- * Return a String representation of the object.
- * @return a <code>String</code> of the form
- * "org.apache.fop.area.Trait.ExternalLink[dest=someURL,newWindow=false]"
- */
- public String toString() {
- StringBuffer sb = new StringBuffer(64);
- sb.append("newWindow=").append(newWindow);
- sb.append(",dest=").append(this.destination);
- return sb.toString();
- }
- }
-
- /**
- * Background trait structure.
- * Used for storing back trait information which are related.
- */
- public static class Background implements Serializable {
-
- private static final long serialVersionUID = 8452078676273242870L;
-
- /** The background color if any. */
- private Color color = null;
-
- /** The background image url if any. */
- private String url = null;
-
- /** The background image if any. */
- private ImageInfo imageInfo = null;
-
- /** Background repeat enum for images. */
- private int repeat;
-
- /** Background horizontal offset for images. */
- private int horiz;
-
- /** Background vertical offset for images. */
- private int vertical;
-
- /**
- * Returns the background color.
- * @return background color, null if n/a
- */
- public Color getColor() {
- return color;
- }
-
- /**
- * Returns the horizontal offset for images.
- * @return the horizontal offset
- */
- public int getHoriz() {
- return horiz;
- }
-
- /**
- * Returns the image repetition behaviour for images.
- * @return the image repetition behaviour
- */
- public int getRepeat() {
- return repeat;
- }
-
- /**
- * Returns the URL to the background image
- * @return URL to the background image, null if n/a
- */
- public String getURL() {
- return url;
- }
-
- /**
- * Returns the ImageInfo object representing the background image
- * @return the background image, null if n/a
- */
- public ImageInfo getImageInfo() {
- return imageInfo;
- }
-
- /**
- * Returns the vertical offset for images.
- * @return the vertical offset
- */
- public int getVertical() {
- return vertical;
- }
-
- /**
- * Sets the color.
- * @param color The color to set
- */
- public void setColor(Color color) {
- this.color = color;
- }
-
- /**
- * Sets the horizontal offset.
- * @param horiz The horizontal offset to set
- */
- public void setHoriz(int horiz) {
- this.horiz = horiz;
- }
-
- /**
- * Sets the image repetition behaviour for images.
- * @param repeat The image repetition behaviour to set
- */
- public void setRepeat(int repeat) {
- this.repeat = repeat;
- }
-
- /**
- * Sets the image repetition behaviour for images.
- * @param repeat The image repetition behaviour to set
- */
- public void setRepeat(String repeat) {
- setRepeat(getConstantForRepeat(repeat));
- }
-
- /**
- * Sets the URL to the background image.
- * @param url The URL to set
- */
- public void setURL(String url) {
- this.url = url;
- }
-
- /**
- * Sets the ImageInfo of the image to use as the background image.
- * @param info The background image's info object
- */
- public void setImageInfo(ImageInfo info) {
- this.imageInfo = info;
- }
-
- /**
- * Sets the vertical offset for images.
- * @param vertical The vertical offset to set
- */
- public void setVertical(int vertical) {
- this.vertical = vertical;
- }
-
- private String getRepeatString() {
- switch (getRepeat()) {
- case Constants.EN_REPEAT: return "repeat";
- case Constants.EN_REPEATX: return "repeat-x";
- case Constants.EN_REPEATY: return "repeat-y";
- case Constants.EN_NOREPEAT: return "no-repeat";
- default: throw new IllegalStateException("Illegal repeat style: " + getRepeat());
- }
- }
-
- private static int getConstantForRepeat(String repeat) {
- if ("repeat".equalsIgnoreCase(repeat)) {
- return Constants.EN_REPEAT;
- } else if ("repeat-x".equalsIgnoreCase(repeat)) {
- return Constants.EN_REPEATX;
- } else if ("repeat-y".equalsIgnoreCase(repeat)) {
- return Constants.EN_REPEATY;
- } else if ("no-repeat".equalsIgnoreCase(repeat)) {
- return Constants.EN_NOREPEAT;
- } else {
- throw new IllegalStateException("Illegal repeat style: " + repeat);
- }
- }
-
- /**
- * Return the string for debugging.
- * {@inheritDoc}
- */
- public String toString() {
- StringBuffer sb = new StringBuffer();
- if (color != null) {
- sb.append("color=").append(ColorUtil.colorToString(color));
- }
- if (url != null) {
- if (color != null) {
- sb.append(",");
- }
- sb.append("url=").append(url);
- sb.append(",repeat=").append(getRepeatString());
- sb.append(",horiz=").append(horiz);
- sb.append(",vertical=").append(vertical);
- }
- return sb.toString();
- }
-
- }
- }
-
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