63 lines
2.4 KiB
C#
63 lines
2.4 KiB
C#
using System;
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using iTextSharp.text.pdf;
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namespace iTextSharp.text.pdf.collection {
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public class PdfCollectionSort : PdfDictionary {
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/**
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* Constructs a PDF Collection Sort Dictionary.
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* @param key the key of the field that will be used to sort entries
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*/
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public PdfCollectionSort(String key) : base(PdfName.COLLECTIONSORT) {
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Put(PdfName.S, new PdfName(key));
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}
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/**
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* Constructs a PDF Collection Sort Dictionary.
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* @param keys the keys of the fields that will be used to sort entries
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*/
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public PdfCollectionSort(String[] keys) : base(PdfName.COLLECTIONSORT) {
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PdfArray array = new PdfArray();
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for (int i = 0; i < keys.Length; i++) {
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array.Add(new PdfName(keys[i]));
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}
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Put(PdfName.S, array);
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}
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/**
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* Defines the sort order of the field (ascending or descending).
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* @param ascending true is the default, use false for descending order
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*/
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public void SetSortOrder(bool ascending) {
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PdfObject o = (PdfObject)Get(PdfName.S);
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if (o is PdfName) {
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Put(PdfName.A, new PdfBoolean(ascending));
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}
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else {
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throw new InvalidOperationException("You have to define a bool array for this collection sort dictionary.");
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}
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}
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/**
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* Defines the sort order of the field (ascending or descending).
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* @param ascending an array with every element corresponding with a name of a field.
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*/
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public void SetSortOrder(bool[] ascending) {
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PdfObject o = (PdfObject)Get(PdfName.S);
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if (o is PdfArray) {
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if (((PdfArray)o).Size != ascending.Length) {
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throw new InvalidOperationException("The number of booleans in this array doesn't correspond with the number of fields.");
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}
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PdfArray array = new PdfArray();
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for (int i = 0; i < ascending.Length; i++) {
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array.Add(new PdfBoolean(ascending[i]));
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}
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Put(PdfName.A, array);
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}
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else {
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throw new InvalidOperationException("You need a single bool for this collection sort dictionary.");
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}
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}
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}
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} |