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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.pdf;
-
- // Java
- import java.awt.geom.Rectangle2D;
- import java.util.Set;
-
- /**
- * class representing an /Annot object of /Subtype /Link
- */
- public class PDFLink extends PDFObject {
- /**
- * Used to represent an external link.
- */
- public static final int EXTERNAL = 0;
-
- /**
- * Used to represent an internal link.
- */
- public static final int INTERNAL = 1;
-
- private float ulx;
- private float uly;
- private float brx;
- private float bry;
- private String color;
- private PDFAction action;
- private Integer structParent;
-
- /**
- * create objects associated with a link annotation (GoToR)
- *
- * @param r the rectangle of the link hotspot in absolute coordinates
- */
- public PDFLink(Rectangle2D r) {
- /* generic creation of PDF object */
- super();
-
- this.ulx = (float)r.getX();
- this.uly = (float)r.getY();
- this.brx = (float)(r.getX() + r.getWidth());
- this.bry = (float)(r.getY() + r.getHeight());
- this.color = "0 0 0"; // just for now
-
- }
-
- /**
- * Set the pdf action for this link.
- * @param action the pdf action that is activated for this link
- */
- public void setAction(PDFAction action) {
- this.action = action;
- }
-
-
- /**
- * Sets the value of the StructParent entry for this link.
- *
- * @param structParent key in the structure parent tree
- */
- public void setStructParent(int structParent) {
- this.structParent = structParent;
- }
-
- /**
- * {@inheritDoc}
- */
- public String toPDFString() {
- getDocumentSafely().getProfile().verifyAnnotAllowed();
- String fFlag = "";
- if (getDocumentSafely().getProfile().getPDFAMode().isEnabled()) {
- int f = 0;
- f |= 1 << (3 - 1); //Print, bit 3
- f |= 1 << (4 - 1); //NoZoom, bit 4
- f |= 1 << (5 - 1); //NoRotate, bit 5
- fFlag = "/F " + f;
- }
- String s = "<< /Type /Annot\n" + "/Subtype /Link\n" + "/Rect [ "
- + (ulx) + " " + (uly) + " "
- + (brx) + " " + (bry) + " ]\n" + "/C [ "
- + this.color + " ]\n" + "/Border [ 0 0 0 ]\n" + "/A "
- + this.action.getAction() + "\n" + "/H /I\n"
- + (this.structParent != null
- ? "/StructParent " + this.structParent.toString() + "\n" : "")
- + fFlag + "\n>>";
- return s;
- }
-
- /*
- * example
- * 19 0 obj
- * <<
- * /Type /Annot
- * /Subtype /Link
- * /Rect [ 176.032 678.48412 228.73579 692.356 ]
- * /C [ 0.86491 0.03421 0.02591 ]
- * /Border [ 0 0 1 ]
- * /A 28 0 R
- * /H /I
- * >>
- * endobj
- */
-
- /** {@inheritDoc} */
- protected boolean contentEquals(PDFObject obj) {
- if (this == obj) {
- return true;
- }
-
- if (obj == null || !(obj instanceof PDFLink)) {
- return false;
- }
-
- PDFLink link = (PDFLink)obj;
-
- if (!((link.ulx == ulx) && (link.uly == uly)
- && (link.brx == brx) && (link.bry == bry))) {
- return false;
- }
-
- if (!(link.color.equals(color)
- && link.action.getAction().equals(action.getAction()))) {
- return false;
- }
-
- return true;
- }
-
- @Override
- public void getChildren(Set<PDFObject> children) {
- super.getChildren(children);
- if (action.hasObjectNumber()) {
- children.add(action);
- }
- action.getChildren(children);
- }
- }
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