====== Source Code WpfDesktopEditionSample MultiLineLabeling CS 110316.zip ======


====App.xaml.cs====

<code csharp>
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Windows;
namespace MultiLineLabeling
{
    /// <summary>
    /// Interaction logic for App.xaml
    /// </summary>
    public partial class App : Application
    {
    }
}
</code>



====MultiLineTextStyle.cs====

<code csharp>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections.ObjectModel;
using ThinkGeo.MapSuite.Core;
namespace MultiLineLabeling
{
    class MultiLineTextStyle : TextStyle
    {
        public MultiLineTextStyle(string textColumnName, GeoFont textFont, GeoSolidBrush textSolidBrush)
        : base(textColumnName, textFont, textSolidBrush)
            {
                base.SplineType = SplineType.StandardSplining;
            }
        //The strategy for displaying the label at each LineShape making upo the MultilineShape is to treat each LineShape as its own feature.
        protected override void DrawCore(System.Collections.Generic.IEnumerable<Feature> features, GeoCanvas canvas, Collection<SimpleCandidate> labelsInThisLayer, Collection<SimpleCandidate> labelsInAllLayers)
        {
            Collection<Feature> featuresForDrawing = new Collection<Feature>();
            foreach (Feature feature in features)
            {
                if (feature.GetWellKnownType() == WellKnownType.Multiline)
                {
                    MultilineShape multiline = (MultilineShape)(feature.GetShape());
                    foreach (LineShape line in multiline.Lines)
                    {
                        Feature newFeature = new Feature(line);
                        CopyColumnValues(newFeature, feature);
                        featuresForDrawing.Add(newFeature);
                    }
                }
                else
                {
                    featuresForDrawing.Add(feature);
                }
            }
            base.DrawCore(featuresForDrawing, canvas, labelsInThisLayer, labelsInAllLayers);
        }
        private static void CopyColumnValues(Feature targetFeature, Feature sourceFeature)
        {
            targetFeature.ColumnValues.Clear();
            foreach (KeyValuePair<string, string> item in sourceFeature.ColumnValues)
            {
                targetFeature.ColumnValues.Add(item.Key, item.Value);
            }
        }
    }
}
</code>



====TestWindow.xaml.cs====

<code csharp>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
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.Collections.ObjectModel;
using ThinkGeo.MapSuite.Core;
using ThinkGeo.MapSuite.WpfDesktopEdition;
namespace MultiLineLabeling
{
    /// <summary>
    /// Interaction logic for TestWindow.xaml
    /// </summary>
    public partial class TestWindow : Window
    {
        public TestWindow()
        {
            InitializeComponent();
        }
        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            //Sets the correct map unit and the extent of the map.
            wpfMap1.MapUnit = GeographyUnit.DecimalDegree;
            wpfMap1.CurrentExtent = new RectangleShape(-96.8442,33.115,-96.8114,33.0876);
            wpfMap1.Background = new SolidColorBrush(Color.FromRgb(148, 196, 243));
            WorldMapKitWmsWpfOverlay worldMapKitWmsWpfOverlay = new WorldMapKitWmsWpfOverlay();
            wpfMap1.Overlays.Add(worldMapKitWmsWpfOverlay);
            StreamReader streamReader = new StreamReader(@"../../Data/MultilineShape.txt");
            String WKT = streamReader.ReadLine();
            MultilineShape multilineShape = (MultilineShape)BaseShape.CreateShapeFromWellKnownData(WKT);
            Feature feature = new Feature(multilineShape);
            feature.ColumnValues.Add("Name", "My Label");
            InMemoryFeatureLayer inMemoryFeatureLayer = new InMemoryFeatureLayer();
            inMemoryFeatureLayer.Open();
            inMemoryFeatureLayer.Columns.Add(new FeatureSourceColumn("Name"));
            inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultLineStyle = LineStyles.CreateSimpleLineStyle(GeoColor.StandardColors.Red, 4, true);
            //Adds the custom TextStyle for displaying the text at each LineShape making up the MultilineShape for the feature to label.
            inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultTextStyle = new MultiLineTextStyle("Name", new GeoFont("Arial", 12), new GeoSolidBrush(GeoColor.StandardColors.Navy));
            inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
            inMemoryFeatureLayer.InternalFeatures.Add(feature);
            LayerOverlay dynamicOverlay = new LayerOverlay();
            dynamicOverlay.TileType = TileType.SingleTile;
            dynamicOverlay.Layers.Add(inMemoryFeatureLayer);
            wpfMap1.Overlays.Add(dynamicOverlay);
            wpfMap1.Refresh();
        }

        private void wpfMap1_MouseMove(object sender, MouseEventArgs e)
        {
            //Gets the PointShape in world coordinates from screen coordinates.
            Point point = e.MouseDevice.GetPosition(null);
            ScreenPointF screenPointF = new ScreenPointF((float)point.X, (float)point.Y);
            PointShape pointShape = ExtentHelper.ToWorldCoordinate(wpfMap1.CurrentExtent, screenPointF, (float)wpfMap1.Width, (float)wpfMap1.Height);
            textBox1.Text = "X: " + DecimalDegreesHelper.GetDegreesMinutesSecondsStringFromDecimalDegree(pointShape.X) +
                          "  Y: " + DecimalDegreesHelper.GetDegreesMinutesSecondsStringFromDecimalDegree(pointShape.Y);
        }
    }
}
</code>