com.itextpdf.text.pdf.PdfOutline Maven / Gradle / Ivy
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*
* This file is part of the iText (R) project.
Copyright (c) 1998-2017 iText Group NV
* Authors: Bruno Lowagie, Paulo Soares, et al.
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package com.itextpdf.text.pdf;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import com.itextpdf.text.BaseColor;
import com.itextpdf.text.Chunk;
import com.itextpdf.text.Font;
import com.itextpdf.text.Paragraph;
/**
* PdfOutline is an object that represents a PDF outline entry.
*
* An outline allows a user to access views of a document by name.
* This object is described in the 'Portable Document Format Reference Manual version 1.3'
* section 6.7 (page 104-106)
*
* @see PdfDictionary
*/
public class PdfOutline extends PdfDictionary {
// membervariables
/** the PdfIndirectReference of this object */
private PdfIndirectReference reference;
/** value of the Count-key */
private int count = 0;
/** value of the Parent-key */
private PdfOutline parent;
/** value of the Destination-key */
private PdfDestination destination;
/** The PdfAction for this outline.
*/
private PdfAction action;
protected ArrayList kids = new ArrayList();
protected PdfWriter writer;
/** Holds value of property tag. */
private String tag;
/** Holds value of property open. */
private boolean open;
/** Holds value of property color. */
private BaseColor color;
/** Holds value of property style. */
private int style = 0;
// constructors
/**
* Constructs a PdfOutline.
*
* This is the constructor for the outlines object.
*
* @param writer The PdfWriter you are adding the outline to
*/
PdfOutline(PdfWriter writer) {
super(OUTLINES);
open = true;
parent = null;
this.writer = writer;
}
/**
* Constructs a PdfOutline.
*
* This is the constructor for an outline entry. The open mode is
* true.
*
* @param parent the parent of this outline item
* @param action the PdfAction for this outline item
* @param title the title of this outline item
*/
public PdfOutline(PdfOutline parent, PdfAction action, String title) {
this(parent, action, title, true);
}
/**
* Constructs a PdfOutline.
*
* This is the constructor for an outline entry.
*
* @param parent the parent of this outline item
* @param action the PdfAction for this outline item
* @param title the title of this outline item
* @param open true if the children are visible
*/
public PdfOutline(PdfOutline parent, PdfAction action, String title, boolean open) {
super();
this.action = action;
initOutline(parent, title, open);
}
/**
* Constructs a PdfOutline.
*
* This is the constructor for an outline entry. The open mode is
* true.
*
* @param parent the parent of this outline item
* @param destination the destination for this outline item
* @param title the title of this outline item
*/
public PdfOutline(PdfOutline parent, PdfDestination destination, String title) {
this(parent, destination, title, true);
}
/**
* Constructs a PdfOutline.
*
* This is the constructor for an outline entry.
*
* @param parent the parent of this outline item
* @param destination the destination for this outline item
* @param title the title of this outline item
* @param open true if the children are visible
*/
public PdfOutline(PdfOutline parent, PdfDestination destination, String title, boolean open) {
super();
this.destination = destination;
initOutline(parent, title, open);
}
/**
* Constructs a PdfOutline.
*
* This is the constructor for an outline entry. The open mode is
* true.
*
* @param parent the parent of this outline item
* @param action the PdfAction for this outline item
* @param title the title of this outline item
*/
public PdfOutline(PdfOutline parent, PdfAction action, PdfString title) {
this(parent, action, title, true);
}
/**
* Constructs a PdfOutline.
*
* This is the constructor for an outline entry.
*
* @param parent the parent of this outline item
* @param action the PdfAction for this outline item
* @param title the title of this outline item
* @param open true if the children are visible
*/
public PdfOutline(PdfOutline parent, PdfAction action, PdfString title, boolean open) {
this(parent, action, title.toString(), open);
}
/**
* Constructs a PdfOutline.
*
* This is the constructor for an outline entry. The open mode is
* true.
*
* @param parent the parent of this outline item
* @param destination the destination for this outline item
* @param title the title of this outline item
*/
public PdfOutline(PdfOutline parent, PdfDestination destination, PdfString title) {
this(parent, destination, title, true);
}
/**
* Constructs a PdfOutline.
*
* This is the constructor for an outline entry.
*
* @param parent the parent of this outline item
* @param destination the destination for this outline item
* @param title the title of this outline item
* @param open true if the children are visible
*/
public PdfOutline(PdfOutline parent, PdfDestination destination, PdfString title, boolean open) {
this(parent, destination, title.toString(), true);
}
/**
* Constructs a PdfOutline.
*
* This is the constructor for an outline entry. The open mode is
* true.
*
* @param parent the parent of this outline item
* @param action the PdfAction for this outline item
* @param title the title of this outline item
*/
public PdfOutline(PdfOutline parent, PdfAction action, Paragraph title) {
this(parent, action, title, true);
}
/**
* Constructs a PdfOutline.
*
* This is the constructor for an outline entry.
*
* @param parent the parent of this outline item
* @param action the PdfAction for this outline item
* @param title the title of this outline item
* @param open true if the children are visible
*/
public PdfOutline(PdfOutline parent, PdfAction action, Paragraph title, boolean open) {
super();
StringBuffer buf = new StringBuffer();
for (Chunk chunk: title.getChunks()) {
buf.append(chunk.getContent());
}
this.action = action;
initOutline(parent, buf.toString(), open);
}
/**
* Constructs a PdfOutline.
*
* This is the constructor for an outline entry. The open mode is
* true.
*
* @param parent the parent of this outline item
* @param destination the destination for this outline item
* @param title the title of this outline item
*/
public PdfOutline(PdfOutline parent, PdfDestination destination, Paragraph title) {
this(parent, destination, title, true);
}
/**
* Constructs a PdfOutline.
*
* This is the constructor for an outline entry.
*
* @param parent the parent of this outline item
* @param destination the destination for this outline item
* @param title the title of this outline item
* @param open true if the children are visible
*/
public PdfOutline(PdfOutline parent, PdfDestination destination, Paragraph title, boolean open) {
super();
StringBuffer buf = new StringBuffer();
for (Object element : title.getChunks()) {
Chunk chunk = (Chunk) element;
buf.append(chunk.getContent());
}
this.destination = destination;
initOutline(parent, buf.toString(), open);
}
// methods
/** Helper for the constructors.
* @param parent the parent outline
* @param title the title for this outline
* @param open true if the children are visible
*/
void initOutline(PdfOutline parent, String title, boolean open) {
this.open = open;
this.parent = parent;
writer = parent.writer;
put(PdfName.TITLE, new PdfString(title, PdfObject.TEXT_UNICODE));
parent.addKid(this);
if (destination != null && !destination.hasPage()) // bugfix Finn Bock
setDestinationPage(writer.getCurrentPage());
}
/**
* Sets the indirect reference of this PdfOutline.
*
* @param reference the PdfIndirectReference to this outline.
*/
public void setIndirectReference(PdfIndirectReference reference) {
this.reference = reference;
}
/**
* Gets the indirect reference of this PdfOutline.
*
* @return the PdfIndirectReference to this outline.
*/
public PdfIndirectReference indirectReference() {
return reference;
}
/**
* Gets the parent of this PdfOutline.
*
* @return the PdfOutline that is the parent of this outline.
*/
public PdfOutline parent() {
return parent;
}
/**
* Set the page of the PdfDestination-object.
*
* @param pageReference indirect reference to the page
* @return true if this page was set as the PdfDestination-page.
*/
public boolean setDestinationPage(PdfIndirectReference pageReference) {
if (destination == null) {
return false;
}
return destination.addPage(pageReference);
}
/**
* Gets the destination for this outline.
* @return the destination
*/
public PdfDestination getPdfDestination() {
return destination;
}
int getCount() {
return count;
}
void setCount(int count) {
this.count = count;
}
/**
* returns the level of this outline.
*
* @return a level
*/
public int level() {
if (parent == null) {
return 0;
}
return parent.level() + 1;
}
/**
* Returns the PDF representation of this PdfOutline.
*
* @param writer the PdfWriter
* @param os
* @throws IOException
*/
@Override
public void toPdf(PdfWriter writer, OutputStream os) throws IOException {
if (color != null && !color.equals(BaseColor.BLACK)) {
put(PdfName.C, new PdfArray(new float[]{color.getRed()/255f,color.getGreen()/255f,color.getBlue()/255f}));
}
int flag = 0;
if ((style & Font.BOLD) != 0)
flag |= 2;
if ((style & Font.ITALIC) != 0)
flag |= 1;
if (flag != 0)
put(PdfName.F, new PdfNumber(flag));
if (parent != null) {
put(PdfName.PARENT, parent.indirectReference());
}
if (destination != null && destination.hasPage()) {
put(PdfName.DEST, destination);
}
if (action != null)
put(PdfName.A, action);
if (count != 0) {
put(PdfName.COUNT, new PdfNumber(count));
}
super.toPdf(writer, os);
}
/**
* Adds a kid to the outline
* @param outline
*/
public void addKid(PdfOutline outline) {
kids.add(outline);
}
/**
* Returns the kids of this outline
* @return an ArrayList with PdfOutlines
*/
public ArrayList getKids() {
return kids;
}
/**
* Sets the kids of this outline
* @param kids
*/
public void setKids(ArrayList kids) {
this.kids = kids;
}
/** Getter for property tag.
* @return Value of property tag.
*/
public String getTag() {
return tag;
}
/** Setter for property tag.
* @param tag New value of property tag.
*/
public void setTag(String tag) {
this.tag = tag;
}
/**
* Gets the title of this outline
* @return the title as a String
*/
public String getTitle() {
PdfString title = (PdfString)get(PdfName.TITLE);
return title.toString();
}
/**
* Sets the title of this outline
* @param title
*/
public void setTitle(String title) {
put(PdfName.TITLE, new PdfString(title, PdfObject.TEXT_UNICODE));
}
/** Getter for property open.
* @return Value of property open.
*/
public boolean isOpen() {
return open;
}
/** Setter for property open.
* @param open New value of property open.
*/
public void setOpen(boolean open) {
this.open = open;
}
/** Getter for property color.
* @return Value of property color.
*
*/
public BaseColor getColor() {
return this.color;
}
/** Setter for property color.
* @param color New value of property color.
*
*/
public void setColor(BaseColor color) {
this.color = color;
}
/** Getter for property style.
* @return Value of property style.
*
*/
public int getStyle() {
return this.style;
}
/** Setter for property style.
* @param style New value of property style.
*
*/
public void setStyle(int style) {
this.style = style;
}
}