FormSelectAttribute.cs

// Name:        FormSelectAttribute.cs
// Description: Dialog for selecting an attribute of an entity as part of a template rule
// Author:      Tim Chipman
// Origination: Work performed for BuildingSmart by Constructivity.com LLC.
// Copyright:   (c) 2011 BuildingSmart International Ltd.
// License:     http://www.buildingsmart-tech.org/legal

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

using IfcDoc.Schema.DOC;

namespace IfcDoc
{
    public partial class FormSelectAttribute : Form
    {
        public FormSelectAttribute()
        {
            InitializeComponent();
        }

        public FormSelectAttribute(DocEntity entity, DocProject project, string selection, bool freeform)
            : this()
        {
            this.textBoxAttributeName.Enabled = freeform;
            this.textBoxAttributeName.Text = selection;

            this.LoadEntity(entity, project, selection);
        }

        private void LoadEntity(DocEntity entity, DocProject project, string selection)
        {
            if (entity == null)
                return;

            // recurse to base
            if (entity.BaseDefinition != null)
            {
                DocEntity docBase = project.GetDefinition(entity.BaseDefinition) as DocEntity;
                LoadEntity(docBase, project, selection);                
            }

            // load attributes
            foreach (DocAttribute docAttr in entity.Attributes)
            {
                // if attribute is derived, dont add, but remove existing
                if (!String.IsNullOrEmpty(docAttr.Derived))
                {
                    foreach (ListViewItem lvi in this.listView.Items)
                    {
                        if (lvi.Text.Equals(docAttr.Name))
                        {
                            lvi.Remove();
                            break;
                        }
                    }
                }
                else
                {
                    ListViewItem lvi = new ListViewItem();
                    lvi.Tag = docAttr;
                    lvi.Text = docAttr.Name;
                    lvi.SubItems.Add(docAttr.DefinedType); // INVERSE / SET / LIST / OPTIONAL...
                    this.listView.Items.Add(lvi);

                    if(selection != null && lvi.Text.Equals(selection))
                    {
                        lvi.Selected = true;
                    }
                }
            }
        }

        /// <summary>
        /// Selected attribute if defined on entity, or null if none or custom attribute
        /// </summary>
        public DocAttribute SelectedAttribute
        {
            get
            {
                if(this.listView.SelectedItems.Count == 1)
                {
                    return this.listView.SelectedItems[0].Tag as DocAttribute;
                }

                return null;
            }
        }

        /// <summary>
        /// Name of selected attribute (or custom attribute)
        /// </summary>
        public string Selection
        {
            get
            {
                return this.textBoxAttributeName.Text;
            }
        }


        private void listView_ItemActivate(object sender, EventArgs e)
        {
            this.DialogResult = DialogResult.OK;
            this.Close();
        }

        private void listView_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (this.listView.SelectedItems.Count == 1)
            {
                this.textBoxAttributeName.Text = this.listView.SelectedItems[0].Text;
            }
        }

        private void textBoxAttributeName_Validated(object sender, EventArgs e)
        {
            this.listView.SelectedItems.Clear();
        }
    }
}