WPF Draggable Label

using System;
using System.Collections.Generic;
using System.IO;
using System.IO.Packaging;
using System.Linq;
using System.Printing;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Windows.Xps;
using System.Windows.Xps.Packaging;
using System.Xml.Linq;

namespace DraggableLabelTest
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void layoutButton_Click(object sender, RoutedEventArgs e)
        {
            var win = new LayoutWindow();
            win.ShowDialog();
        }

        private void printButton_Click(object sender, RoutedEventArgs e)
        {
            var nameLocation = new Point(12, 12);
            var nameWidth = double.NaN;
            var nameHeight = double.NaN;
            var addressLocation = new Point(12, 48);
            var addressWidth = double.NaN;
            var addressHeight = double.NaN;
            var emailLocation = new Point(12, 120);
            var emailWidth = double.NaN;
            var emailHeight = double.NaN;
            var countryLocation = new Point(12, 156);
            var countryWidth = double.NaN;
            var countryHeight = double.NaN;
            var ageLocation = new Point(12, 192);
            var ageWidth = double.NaN;
            var ageHeight = double.NaN;
            var genderLocation = new Point(12, 228);
            var genderWidth = double.NaN;
            var genderHeight = double.NaN;
            var dateLocation = new Point(12, 264);
            var dateWidth = double.NaN;
            var dateHeight = double.NaN;

            if (File.Exists("layout.xml"))
            {
                XElement layout = XElement.Load("layout.xml");

                var elements = layout.Elements().Select(
                    el => new { Name = el.Name, Top = (double) el.Attribute("Top"), Left = (double) el.Attribute("Left"), Width = (double) el.Attribute("Width"), Height = (double) el.Attribute("Height") });

                var element = elements.Where(el => el.Name == "NameLabel").Single();
                nameLocation = new Point(element.Left, element.Top);
                nameWidth = element.Width;
                nameHeight = element.Height;

                element = elements.Where(el => el.Name == "AddressLabel").Single();
                addressLocation = new Point(element.Left, element.Top);
                addressWidth = element.Width;
                addressHeight = element.Height;

                element = elements.Where(el => el.Name == "EmailLabel").Single();
                emailLocation = new Point(element.Left, element.Top);
                emailWidth = element.Width;
                emailHeight = element.Height;

                element = elements.Where(el => el.Name == "CountryLabel").Single();
                countryLocation = new Point(element.Left, element.Top);
                countryWidth = element.Width;
                countryHeight = element.Height;

                element = elements.Where(el => el.Name == "AgeLabel").Single();
                ageLocation = new Point(element.Left, element.Top);
                ageWidth = element.Width;
                ageHeight = element.Height;

                element = elements.Where(el => el.Name == "GenderLabel").Single();
                genderLocation = new Point(element.Left, element.Top);
                genderWidth = element.Width;
                genderHeight = element.Height;

                element = elements.Where(el => el.Name == "DateLabel").Single();
                dateLocation = new Point(element.Left, element.Top);
                dateWidth = element.Width;
                dateHeight = element.Height;
            }

            using (var xpsStream = new MemoryStream())
            {
                using (Package package = Package.Open(xpsStream, FileMode.Create, FileAccess.ReadWrite))
                {
                    string packageUriString = "memorystream://data.xps";
                    var packageUri = new Uri(packageUriString);

                    PackageStore.AddPackage(packageUri, package);
                    var xpsDocument = new XpsDocument(package, CompressionOption.Maximum, packageUriString);

                    XpsDocumentWriter writer = XpsDocument.CreateXpsDocumentWriter(xpsDocument);
                    var visual = new DrawingVisual();

                    using (DrawingContext ctx = visual.RenderOpen())
                    {
                        var text = new FormattedText(nameTextBox.Text, System.Globalization.CultureInfo.CurrentCulture,
                                                     FlowDirection.LeftToRight, new Typeface("Verdana"), 14, Brushes.Black);
                        text.MaxTextWidth = nameWidth;
                        text.MaxTextHeight = nameHeight;
                        ctx.DrawText(text, nameLocation);

                        text = new FormattedText(addressTextBox.Text, System.Globalization.CultureInfo.CurrentCulture,
                                                     FlowDirection.LeftToRight, new Typeface("Verdana"), 14, Brushes.Black);
                        text.MaxTextWidth = addressWidth;
                        text.MaxTextHeight = addressHeight;
                        ctx.DrawText(text, addressLocation);

                        text = new FormattedText(emailTextBox.Text, System.Globalization.CultureInfo.CurrentCulture,
                                                     FlowDirection.LeftToRight, new Typeface("Verdana"), 14, Brushes.Black);
                        text.MaxTextWidth = emailWidth;
                        text.MaxTextHeight = emailHeight;
                        ctx.DrawText(text, emailLocation);

                        text = new FormattedText(countryTextBox.Text, System.Globalization.CultureInfo.CurrentCulture,
                                                     FlowDirection.LeftToRight, new Typeface("Verdana"), 14, Brushes.Black);
                        text.MaxTextWidth = countryWidth;
                        text.MaxTextHeight = countryHeight;
                        ctx.DrawText(text, countryLocation);

                        text = new FormattedText(ageTextBox.Text, System.Globalization.CultureInfo.CurrentCulture,
                                                     FlowDirection.LeftToRight, new Typeface("Verdana"), 14, Brushes.Black);
                        text.MaxTextWidth = ageWidth;
                        text.MaxTextHeight = ageHeight;
                        ctx.DrawText(text, ageLocation);

                        text = new FormattedText(genderComboBox.Text, System.Globalization.CultureInfo.CurrentCulture,
                                                     FlowDirection.LeftToRight, new Typeface("Verdana"), 14, Brushes.Black);
                        text.MaxTextWidth = genderWidth;
                        text.MaxTextHeight = genderHeight;
                        ctx.DrawText(text, genderLocation);

                        text = new FormattedText(dateDatePicker.Text, System.Globalization.CultureInfo.CurrentCulture,
                                                     FlowDirection.LeftToRight, new Typeface("Verdana"), 14, Brushes.Black);
                        text.MaxTextWidth = dateWidth;
                        text.MaxTextHeight = dateHeight;
                        ctx.DrawText(text, dateLocation);
                    }

                    var printTicket = new PrintTicket();
                    printTicket.PageMediaSize = new PageMediaSize(816, 1248);

                    writer.Write(visual, printTicket);

                    FixedDocumentSequence document = xpsDocument.GetFixedDocumentSequence();
                    xpsDocument.Close();

                    var printPreview = new PrintPreview();
                    printPreview.Owner = this;
                    printPreview.Document = document;
                    printPreview.ShowDialog();

                    PackageStore.RemovePackage(packageUri);
                }
            }
        }

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            nameTextBox.Text = "John Smith";
            addressTextBox.Text = "2000 West Park Drive\nWestborough\nMA 01581";
            emailTextBox.Text = "johnsmith@gmail.com";
            countryTextBox.Text = "United States";
            ageTextBox.Text = "45";
            genderComboBox.SelectedIndex = 0;
            dateDatePicker.Text = DateTime.Now.Date.ToShortDateString();
        }
    }
}