Initial Commit

iTechSharp/iTextSharp/text/pdf/hyphenation/CharVector.cs

@@ -0,0 +1,128 @@
+using System;
+
+/*
+ * $Id: CharVector.cs,v 1.2 2005/06/18 08:17:05 psoares33 Exp $
+ * Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
+ * For details on use and redistribution please refer to the
+ * LICENSE file included with these sources.
+ */
+
+namespace iTextSharp.text.pdf.hyphenation {
+	/**
+	 * This class implements a simple char vector with access to the
+	 * underlying array.
+	 *
+	 * @author Carlos Villegas <cav@uniscope.co.jp>
+	 */
+	public class CharVector : ICloneable {
+
+		/**
+		 * Capacity increment size
+		 */
+		private static int DEFAULT_BLOCK_SIZE = 2048;
+		private int BLOCK_SIZE;
+
+		/**
+		 * The encapsulated array
+		 */
+		private char[] array;
+
+		/**
+		 * Points to next free item
+		 */
+		private int n;
+
+		public CharVector() : this(DEFAULT_BLOCK_SIZE) {}
+
+		public CharVector(int capacity) {
+			if (capacity > 0)
+				BLOCK_SIZE = capacity;
+			else
+				BLOCK_SIZE = DEFAULT_BLOCK_SIZE;
+			array = new char[BLOCK_SIZE];
+			n = 0;
+		}
+
+		public CharVector(char[] a) {
+			BLOCK_SIZE = DEFAULT_BLOCK_SIZE;
+			array = a;
+			n = a.Length;
+		}
+
+		public CharVector(char[] a, int capacity) {
+			if (capacity > 0)
+				BLOCK_SIZE = capacity;
+			else
+				BLOCK_SIZE = DEFAULT_BLOCK_SIZE;
+			array = a;
+			n = a.Length;
+		}
+
+		/**
+		 * Reset Vector but don't resize or clear elements
+		 */
+		public void Clear() {
+			n = 0;
+		}
+
+		public Object Clone() {
+			CharVector cv = new CharVector((char[])array.Clone(), BLOCK_SIZE);
+			cv.n = this.n;
+			return cv;
+		}
+
+		public char[] Arr {
+			get {
+				return array;
+			}
+		}
+
+		/**
+		 * return number of items in array
+		 */
+		public int Length {
+			get {
+				return n;
+			}
+		}
+
+		/**
+		 * returns current capacity of array
+		 */
+		public int Capacity {
+			get {
+				return array.Length;
+			}
+		}
+
+		public char this[int index] {
+			get {
+				return array[index];
+			}
+
+			set {
+				array[index] = value;
+			}
+		}
+
+		public int Alloc(int size) {
+			int index = n;
+			int len = array.Length;
+			if (n + size >= len) {
+				char[] aux = new char[len + BLOCK_SIZE];
+				Array.Copy(array, 0, aux, 0, len);
+				array = aux;
+			}
+			n += size;
+			return index;
+		}
+
+		public void TrimToSize() {
+			if (n < array.Length) {
+				char[] aux = new char[n];
+				Array.Copy(array, 0, aux, 0, n);
+				array = aux;
+			}
+		}
+	}
+}