using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Collections;

namespace ST.Library.Drawing.SvgRender

{

public sealed class SvgElementCollection : IEnumerable

{

public int Count { get; private set; }

private SvgElement[] m_arr;

internal SvgElementCollection(int capacity) {

m_arr = new SvgElement[capacity];

}

public SvgElement this[int nIndex] {

get {

if (nIndex < 0 || nIndex >= this.Count) {

throw new ArgumentOutOfRangeException("nIndex");

}

return m_arr[nIndex];

}

}

internal void Add(SvgElement ele) {

this.EnsureSpace(1);

m_arr[this.Count++] = ele;

}

private void EnsureSpace(int nCount) {

if (this.Count + nCount <= m_arr.Length) {

return;

}

SvgElement[] temp = new SvgElement[Math.Max(m_arr.Length << 1, this.Count + nCount)];

m_arr.CopyTo(temp, 0);

m_arr = temp;

}

public IEnumerator<SvgElement> GetEnumerator() {

for (int i = 0; i < this.Count; i++) {

yield return m_arr[i];

}

}

IEnumerator IEnumerable.GetEnumerator() {

return this.GetEnumerator();

}

}

}