CourseItemTreePanel.cs :  » Network-Clients » iReaper » IReaper » CourseData » C# / CSharp Open Source

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using IReaper.Command;
using IReaper.Category;
using IReaper.CommonGui;

namespace IReaper.CourseData{
    public partial class CourseItemTreePanel : iReaperDockContent
    {
        public CourseItemTreePanel()
        {
            InitializeComponent();

            Core.CoreData.PropertyChanged += new PropertyChangedEventHandler(CoreData_PropertyChanged);
        }

        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);
            //set treenode
            this.SetCurrentViewedTreeNode();
        }

        /// <summary>
        /// CoreGUIComponentCurrentViewedTreeNodeTreeNode
        /// </summary>
        private void SetCurrentViewedTreeNode()
        {
            TreeNode node = (TreeNode)Core.CoreData[CoreDataType.CurrentViewedCourseTreeNode];
            if (node != null)
            {
                if (this.taskItemTree.Nodes.Count == 0 || this.taskItemTree.Nodes[0] != node)
                {
                    //
                    //
                    node.Remove();
                    this.taskItemTree.BeginUpdate();
                    this.taskItemTree.Nodes.Clear();
                    node.Text = IReaper.Properties.Resources.MSDNCourse;
                    node.Name = "MSDN Root";
                    this.taskItemTree.Nodes.Add(node);
                    this.taskItemTree.EndUpdate();
                    node.Expand();
                    this.taskItemTree.SelectedNode = node;
                }
            }
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void contextMenuStripTreeView_Opening(object sender, CancelEventArgs e)
        {
            ButtonStatuMonitor.DataType = CoreDataType.CurrentViewedCourses;
            this.toolStripMenuItemDownload.Enabled = ButtonStatuMonitor.CanDownload;
            this.toolStripMenuItemRemoveFile.Enabled = ButtonStatuMonitor.CanRemove;
        }


        protected override void OnClosing(CancelEventArgs e)
        {
            taskItemTree.Nodes.Clear();
            base.OnClosing(e);
        }

        /* Command
         * Core
         */
        private void CoreData_PropertyChanged(object sender, PropertyChangedEventArgs e)
        {
            if (e.PropertyName == CoreDataType.CurrentViewedCourseTreeNode.ToString())
            {
                this.SetCurrentViewedTreeNode();
            }
        }
    }
}