using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using DevExpress.XtraEditors;
using DevExpress.XtraBars.Ribbon;
using System.Collections;
using System.Windows.Forms;
using System.IO;

namespace Hydro.WinfrmUI.Viewer {
    public class MRUArrayList : ArrayList {
        public static string MRUFileName = "RibbonMRUFiles.ini";
        public static string MRUFolderName = "RibbonMRUFolders.ini";

        Control container;
        int maxRecentFiles = 9;
        Image imgChecked, imgUncheked, glyph;
        public event EventHandler LabelClicked;
        bool indexedList;
        bool showDescription;
        public MRUArrayList(Control cont, Image iChecked, Image iUnchecked, Image glyph, bool indexedList, bool showDescription) : this(cont, iChecked, iUnchecked, glyph) {
            this.indexedList = indexedList;
            this.showDescription = showDescription;
        }
        public MRUArrayList(Control cont, Image iChecked, Image iUnchecked, Image glyph) : this(cont, iChecked, iUnchecked) {
            this.glyph = glyph;
        }
        public MRUArrayList(Control cont, Image iChecked, Image iUnchecked)
            : base() {
            this.indexedList = true;
            this.imgChecked = iChecked;
            this.imgUncheked = iUnchecked;
            this.container = cont;
        }
        int GetLastAppMenuFileLabelIndex() {
            for(int i = container.Controls.Count - 1; i >= 0; i--) {
                if(container.Controls[i] is AppMenuFileLabel)
                    return i + 1;
            }
            return 0;
        }
        public void InsertElement(object value) {
            string[] names = value.ToString().Split(',');
            string _name = names[0];
            bool checkedLabel = false;
            if(names.Length > 1) checkedLabel = names[1].ToLower().Equals("true");
            foreach(Control c in container.Controls) {
                AppMenuFileLabel ml = c as AppMenuFileLabel;
                if(ml == null)
                    continue;
                if(ml.Tag.Equals(_name)) {
                    checkedLabel = ml.Checked;
                    base.Remove(_name);
                    ml.LabelClick -= new EventHandler(OnLabelClick);
                    ml.Dispose();
                    break;
                }
            }
            bool access = true;
            if(base.Count >= maxRecentFiles)
                access = RemoveLastElement();
            if(access) {
                base.Insert(0, _name);
                AppMenuFileLabel ml = new AppMenuFileLabel();
                int index = GetLastAppMenuFileLabelIndex();
                container.Controls.Add(ml);
                container.Controls.SetChildIndex(ml, index);
                ml.Tag = _name;
                if(showDescription) {
                    ml.Text = GetFileName(_name);
                    ml.Description = _name;
                }
                else 
                    ml.Text = GetFileName(_name);
                ml.Glyph = glyph;
                ml.Checked = checkedLabel;
                ml.AutoHeight = true;
                ml.Dock = DockStyle.Top;
                ml.Image = imgUncheked;
                ml.SelectedImage = imgChecked;
                ml.LabelClick += new EventHandler(OnLabelClick);
                if(indexedList)
                    SetElementsRange();
            }
        }
        void OnLabelClick(object sender, EventArgs e) {
            if(LabelClicked != null)
                LabelClicked(((AppMenuFileLabel)sender).Tag.ToString(), e);
        }
        public bool RemoveLastElement() {
            for(int i = 0; i < container.Controls.Count; i++) {
                AppMenuFileLabel ml = container.Controls[i] as AppMenuFileLabel;
                if(ml != null && !ml.Checked) {
                    base.Remove(ml.Tag);
                    ml.LabelClick -= new EventHandler(OnLabelClick);
                    ml.Dispose();
                    return true;
                }
            }
            return false;
        }
        string GetFileName(object obj) {
            FileInfo fi = new FileInfo(obj.ToString());
            return fi.Name;
        }
        void SetElementsRange() {
            int i = 0;
            foreach(Control  c in container.Controls) {
                AppMenuFileLabel ml = c as AppMenuFileLabel;
                if(ml == null)
                    continue;
                ml.Caption = string.Format("&{0}", container.Controls.Count - i);
                i++;
            }
        }
        public bool GetLabelChecked(string name) {
            foreach(Control c in container.Controls) {
                AppMenuFileLabel ml = c as AppMenuFileLabel;
                if(ml == null)
                    continue;
                if(ml.Tag.Equals(name)) return ml.Checked;
            }
            return false;
        }
        public void Init(string fileName, string defaultItem) {
            if(!System.IO.File.Exists(fileName)) {
                InsertElement(defaultItem);
                return;
            }
            System.IO.StreamReader sr = System.IO.File.OpenText(fileName);
            container.SuspendLayout();
            List<string> list = new List<string>();
            for(string s = sr.ReadLine(); s != null; s = sr.ReadLine())
                list.Add(s);
            for(int i = list.Count - 1; i >= 0; i--) {
                InsertElement(list[i]);
            }
            sr.Close();
            container.ResumeLayout();
        }
    }
}