WorkingCommentControl.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using Shared;

namespace CommentControls
{
    public partial class WorkingCommentControl : UserControl
    {
        IAccessHandler accessHandler;
        bool replyToComment = false, creating = false;
        int literature, project;
        Dictionary<int, TreeNode> commentsTable = new Dictionary<int, TreeNode>();

        public WorkingCommentControl()
        {
            InitializeComponent();
            UpdateComments();
        }
        
        public WorkingCommentControl(IAccessHandler accessHandler, int literature, int project)
        {
            InitializeComponent();
            this.accessHandler = accessHandler;
            this.literature = literature;
            this.project = project;
            UpdateComments();
        }

        public IAccessHandler AccessHandler
        {
            get { return accessHandler; }
            set { accessHandler = value; }
        }

        public int Project
        {
            get { return project; }
            set { project = value; }
        }

        public int Literature
        {
            get { return literature; }
            set { literature = value; }
        }


        #region CommentControl Buttons

        private void commentCreateButton_Click(object sender, EventArgs e)
        {
            commentContentTextBox.ReadOnly = false;
            commentDetailsTextbox.ReadOnly = false;
            commentDetailsTextbox.Focus();
            commentSubmitButton.Visible = true;
            commentCancelButton.Visible = true;
            commentCreateButton.Visible = false;
            commentEditButton.Visible = false;
            commentReplyButton.Visible = false;
            commentContentTextBox.Text = "";
            commentDetailsTextbox.Text = "";
            commentsTreeview.Enabled = false;
            creating = true;
        }

        private void commentCancelButton_Click(object sender, EventArgs e)
        {
            commentReplyButton.Enabled = false;
            commentEditButton.Enabled = false;
            commentSubmitButton.Visible = false;
            commentCancelButton.Visible = false;
            commentContentTextBox.ReadOnly = true;
            commentContentTextBox.Text = "";
            commentDetailsTextbox.ReadOnly = true;
            commentDetailsTextbox.Text = "";
            commentCreateButton.Visible = true;
            commentEditButton.Visible = true;
            commentReplyButton.Visible = true;

            PopulateCommentsTree();
            replyToComment = false;
            creating = false;
            commentsTreeview.Enabled = true;
        }

        private void commentEditButton_Click(object sender, EventArgs e)
        {
            // Not implemented yet
        }

        private void commentSubmitButton_Click(object sender, EventArgs e)
        {   
            commentSubmitButton.Visible = false;
            commentCancelButton.Visible = false;
            commentCreateButton.Visible = true;
            commentEditButton.Visible = true;
            commentReplyButton.Visible = true;
            commentContentTextBox.ReadOnly = true;
            commentDetailsTextbox.ReadOnly = true;

            int id;

            if (replyToComment == false)
                accessHandler.CreateComment(new CommentInfo(-1, literature, project, accessHandler.WhoAmI, commentDetailsTextbox.Text,
                    commentContentTextBox.Text, DateTime.Now, project < 0 ? CommentType.Literature : CommentType.Reference), out id);

            else
            {
                CommentInfo ci = (CommentInfo)commentsTreeview.SelectedNode.Tag;
                accessHandler.CreateComment(new CommentInfo(-1, ci.id, ci.project, accessHandler.WhoAmI, commentDetailsTextbox.Text, commentContentTextBox.Text, DateTime.Now, CommentType.Comment), out id);

            }

            commentContentTextBox.Text = "";
            commentDetailsTextbox.Text = "";

            PopulateCommentsTree();

            TreeNode[] temp = commentsTreeview.Nodes.Find(id.ToString(), true);

            if (temp.Length > 0) commentsTreeview.SelectedNode = temp[0];

            replyToComment = false;
            commentsTreeview.Enabled = true;
            creating = false;
        }

        private void commentReplyButton_Click(object sender, EventArgs e)
        {
            commentContentTextBox.ReadOnly = false;
            commentDetailsTextbox.ReadOnly = false;
            commentDetailsTextbox.Focus();
            commentSubmitButton.Visible = true;
            commentCancelButton.Visible = true;
            commentCreateButton.Visible = false;
            commentEditButton.Visible = false;
            commentReplyButton.Visible = false;
            commentContentTextBox.Text = "";
            commentDetailsTextbox.Text = "";
            commentsTreeview.Enabled = false;

            replyToComment = true;
        }

        #endregion

        #region Comment Methods & Events

        public void UpdateComments()
        {
            commentCancelButton_Click(null, null);
        }

        private void PopulateCommentsTree()
        {
            if (accessHandler == null)
                return;
            commentsTreeview.Nodes.Clear();

            CommentInfo[] comments = project < 0 ? accessHandler.GetComments(literature) : accessHandler.GetComments(literature, project) ;

            commentsTable = new Dictionary<int, TreeNode>();

            foreach (CommentInfo c in comments)
            {
                TreeNode temp = new TreeNode("''" + c.title + "''" + " by " + c.poster + ", " + c.Date.Year);
                temp.Name = c.id.ToString();
                temp.Tag = c;

                commentsTable.Add(c.id, temp);

                if (literature == c.parent) commentsTreeview.Nodes.Add(temp);

                else commentsTable[c.parent].Nodes.Add(temp);

            }

            commentsTreeview.ExpandAll();

        }

        private void commentsTreeview_AfterSelect(object sender, TreeViewEventArgs e)
        {
            if (commentsTreeview.SelectedNode == null)
                return;

            commentDetailsTextbox.Text = "";
            commentDetailsTextbox.Text = ((CommentInfo)commentsTreeview.SelectedNode.Tag).title;

            commentContentTextBox.Text = "";
            commentContentTextBox.Text = ((CommentInfo)commentsTreeview.SelectedNode.Tag).text;

            commentReplyButton.Enabled = true;
        }



        #endregion



    }
}

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