private static void UpdateGraphicsAndRenderer(KmlGraphicsLayer layer, UniqueValueRenderer renderer, string key)
{
foreach (var graphic in layer.Graphics)
{
var f = (PlacemarkDescriptor)graphic.GetValue(FeaturePlacemarkerDescriptorProperty);
if (f.Symbol.style.IconHref != null && f.Symbol.style.IconHref.ToLower() == key)
{
graphic.Symbol = PointSymbolDescriptor.GetDefaultSymbol();
ComputeIconTranslationValues(f.Symbol.style, graphic.Symbol as KmlPlaceMarkerSymbol, ((graphic.Symbol as KmlPlaceMarkerSymbol).Fill as ImageBrush).ImageSource as BitmapImage);
string l = null, d = null;
GetRendererInfo(f, f.Symbol.style, out l, out d);
var info = renderer.Infos.FirstOrDefault(i => i.Label == l);
if (info != null)
{
info.Symbol = graphic.Symbol;
}
}
}
}
private void backgroundWorker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
if (e.Error != null)
{
this.InitializationFailure = new ArgumentException(Properties.Resources.KmlLayer_DocumentParsingFailed);
}
else
{
// Create graphic features from definitions -- this code requires the UI thread
FeatureDefinition fd = (FeatureDefinition)e.Result;
// Initialize the layer name with the name info coming from the KML document
Name = fd.name;
_hasRootContainer = _isRoot && fd.hasRootContainer; // the root container has been collapsed (info needed to generate internal folderIDs)
if (_visibleLayerIds != null && !IsInitialized)
{
// VisibleLayerIds is set --> layer created from a web map --> check that the layer must stay visible (_hasRootContainer is set only after the file has been parsed)
if (_hasRootContainer && !_visibleLayerIds.Contains(1)) // FolderIds 1 is the top level folder that may not be visible in SL
{
Visible = false;
_isLoading = false;
base.Initialize();
return;
}
}
// Store the parsed styles to be able to pass them to children
_context.Styles = fd.styles;
// Create ground overlays and add to element layer
if (fd.groundOverlays.Any())
{
ElementLayer elementLayer = new ElementLayer { ID = Properties.Resources.KmlLayer_GroundOverlaysSublayer };
fd.CreateGroundOverlays(elementLayer, _context.Images, Map);
ChildLayers.Add(elementLayer);
if (IsInitialized)
elementLayer.Initialize(); // should be done by the group layer (to remove when Bug#2718 is fixed)
}
// Create graphics and add to graphics layer
if (fd.placemarks.Any())
{
KmlGraphicsLayer kmlGraphicsLayer = new KmlGraphicsLayer
{
ID = Properties.Resources.KmlLayer_PlacemarksSublayer,
ProjectionService = ProjectionService,
IsHidden = _hideChildren
};
fd.CreateGraphics(kmlGraphicsLayer, _context.Images);
#if !WINDOWS_PHONE
kmlGraphicsLayer.MapTip = MapTip;
#endif
ChildLayers.Add(kmlGraphicsLayer);
if (IsInitialized)
kmlGraphicsLayer.Initialize(); // should be done by the group layer (to remove when Bug#2718 is fixed)
// Setting the Spatial Reference of the KML layer to 4326:
if (this.SpatialReference == null)
{
this.SpatialReference = new Geometry.SpatialReference(4326);
}
}
// Create a sub KML layer for each container
foreach (ContainerInfo container in fd.containers)
{
string fullPath = _fullPath == null ? (container.Name ?? string.Empty) : string.Concat(_fullPath, "/", container.Name);
// Note : use internal constructor, so properties such as MapTip, ProxyUrl, VisibleLayers.. are reported to the children
var kmlLayer = new KmlLayer(this)
{
ID = container.Name,
Name = container.Name,
_fullPath = fullPath,
RefreshInterval = TimeSpan.FromSeconds(container.RefreshInterval),
VisibleTimeExtent = container.TimeExtent,
RegionInfo = container.RegionInfo,
_folderId = container.FolderId,
_hideChildren = container.HideChildren,
IsHidden = _hideChildren
};
bool isOk = true;
if (string.IsNullOrEmpty(container.Url))
{
// Set the visibility of the layer
// There are 3 ways to define the visibility of a folder or document, by priority order:
// - by the internal VisibleLayerIds property (for the layers inside a web map)
// - by the public VisibleLayers property
// - by the visibility defined in the KML document
kmlLayer.Visible = _visibleLayerIds != null ? _visibleLayerIds.Contains(kmlLayer._folderId) : IsContainerVisible(fullPath, container.Visible);
kmlLayer._visibleLayerIds = _visibleLayerIds;
// Subfolder : Create a context object and initialize a KmlLayer with it
kmlLayer._context = new KmlLayerContext
{
Element = container.Element, // The XElement that the KML layer has to process
Styles = _context.Styles,
Images = _context.Images,
AtomAuthor = container.AtomAuthor,
AtomHref = container.AtomHref
};
}
else
{
// NetworkLink : initialize the Url
Uri containerUri = GetUri(container.Url, GetBaseUri());
if (containerUri != null)
{
kmlLayer.Url = containerUri;
kmlLayer.ViewRefreshMode = container.ViewRefreshMode;
}
else
isOk = false; // bad url, don't create the child layer
// Set the visibility of the layer
// For a network link, the internal VisibleLayerIds property is not used.
kmlLayer.Visible = IsContainerVisible(fullPath, container.Visible);
}
if (isOk)
{
ChildLayers.Add(kmlLayer);
if (IsInitialized)
kmlLayer.Initialize(); // should be done by the group layer --> to remove later (after or with CR2718)
}
}
// Check that the layer refresh interval is compatible with infos coming from NetworkLinkControl
if (fd.networkLinkControl != null)
{
if (RefreshInterval != TimeSpan.Zero && fd.networkLinkControl.MinRefreshPeriod > 0.0)
RefreshInterval = TimeSpan.FromSeconds(Math.Max(RefreshInterval.Seconds, fd.networkLinkControl.MinRefreshPeriod));
}
// Set resolution range from the Region/Lods info of the parent
SetResolutionRange();
}
if (!IsInitialized)
base.Initialize();
_isLoading = false;
_isLoaded = true;
}
private static void UpdateGraphicsAndRenderer(KmlGraphicsLayer layer, UniqueValueRenderer renderer, string key)
{
foreach (var graphic in layer.Graphics)
{
var f = (PlacemarkDescriptor)graphic.GetValue(FeaturePlacemarkerDescriptorProperty);
if (f.Symbol.style.IconHref != null && f.Symbol.style.IconHref.ToLower() == key)
{
graphic.Symbol = PointSymbolDescriptor.GetDefaultSymbol();
ComputeIconTranslationValues(f.Symbol.style, graphic.Symbol as KmlPlaceMarkerSymbol, ((graphic.Symbol as KmlPlaceMarkerSymbol).Fill as ImageBrush).ImageSource as BitmapImage);
string l = null, d = null;
GetRendererInfo(f, f.Symbol.style, out l, out d);
var info = renderer.Infos.FirstOrDefault(i => i.Label == l);
if (info != null)
{
info.Symbol = graphic.Symbol;
}
}
}
}
/// <summary>
/// Creates graphic elements and adds them to the graphics layer.
/// </summary>
/// <param name="layer">Graphics layer that will have features added to it.</param>
/// <param name="images">Dictionary of images coming from kmz content or from previous parsing</param>
public void CreateGraphics(KmlGraphicsLayer layer, IDictionary<string, ImageBrush> images)
{
if (layer == null) return;
GraphicCollection graphics = new GraphicCollection();
UniqueValueRenderer renderer = new UniqueValueRenderer(); // dummy renderer used to create the legend items (since creation of the swatches from the symbol is not that obvious)
// Process each metadata feature in the list
foreach (PlacemarkDescriptor feature in placemarks)
{
KMLStyle style = feature.Symbol.style;
if (style.ZipFile != null)
{
// Look for the image in the zip file
if (style.IconImage == null && !String.IsNullOrEmpty(style.IconHref))
{
style.IconImage = GetIconImage(style.ZipFile, style.IconHref.ToLower());
}
style.ZipFile.Dispose();
style.ZipFile = null;
}
//Define handlers upfront so we can unhook from them
#if SILVERLIGHT
EventHandler<RoutedEventArgs>
#else
EventHandler
#endif
imageCompleted = null;
#if SILVERLIGHT
EventHandler<ExceptionRoutedEventArgs>
#else
EventHandler<ExceptionEventArgs>
#endif
imageFailed = null;
// If the style has an HREF then it is associated with an image
if (style.IconImage == null && !String.IsNullOrEmpty(style.IconHref))
{
// If the image is already loaded in the image dictionary, use it
if (images.ContainsKey(style.IconHref.ToLower()))
style.IconImage = images[style.IconHref.ToLower()];
else
{
// Get the image using the HREF and store the image in the images dictionary so that if
// other features reference it, it is cached
style.IconImage = GetIconImage(style.IconHref);
if (style.IconImage != null && (style.IconImage as ImageBrush).ImageSource != null)
{
var bi = (style.IconImage as ImageBrush).ImageSource as BitmapImage;
if (bi != null)
{
imageFailed = (s, e) =>
{
var b = s as BitmapImage;
#if SILVERLIGHT
if (imageCompleted != null) b.ImageOpened -= imageCompleted;
if(imageFailed != null) b.ImageFailed -= imageFailed;
#else
if (imageCompleted != null) b.DownloadCompleted -= imageCompleted;
if (imageFailed != null) b.DownloadFailed -= imageFailed;
#endif
var key = b.GetValue(BitmapImageKeyProperty) as string;
layer.Dispatcher.BeginInvoke((Action)delegate
{
UpdateGraphicsAndRenderer(layer, renderer, key);
});
};
#if SILVERLIGHT
bi.ImageFailed += imageFailed;
#else
bi.DownloadFailed += imageFailed;
#endif
}
}
images.Add(style.IconHref.ToLower(), style.IconImage);
}
}
// Create a new graphic from the metadata and construct the symbol using polymorphism
Graphic g = new Graphic()
{
Geometry = feature.Geometry,
Symbol = feature.Symbol.CreateSymbol(),
TimeExtent = feature.TimeExtent
};
g.SetValue(FeaturePlacemarkerDescriptorProperty, feature);
// Create legend entry
string label;
string description;
GetRendererInfo(feature, style, out label, out description);
if (!string.IsNullOrEmpty(label) && !renderer.Infos.Any(info => info.Label == label))
renderer.Infos.Add(new UniqueValueInfo { Label = label, Description = description, Symbol = g.Symbol });
// Adjust and assign picture marker symbol properties
if (g.Geometry is ESRI.ArcGIS.Client.Geometry.MapPoint && g.Symbol is KmlPlaceMarkerSymbol)
{
try
{
KmlPlaceMarkerSymbol ms = g.Symbol as KmlPlaceMarkerSymbol;
// To match sizing of Google Earth, default size of point images is 40x40
ms.Height = 40;
ms.Width = 40;
ms.Fill = style.IconImage;
ms.IconColor = style.IconColor;
// Default to half the pixel size (width and height) if symbol offsets are 0 (supported in wpf and sl3)
ImageBrush ib = ms.Fill;
BitmapImage bi = ib.ImageSource as BitmapImage;
#if SILVERLIGHT
if (bi.PixelHeight == 0 || bi.PixelWidth == 0)
#else
if (bi.IsDownloading)
#endif
{
imageCompleted = (s, e) =>
{
var b = s as BitmapImage;
#if SILVERLIGHT
if (imageCompleted != null) b.ImageOpened -= imageCompleted;
if(imageFailed != null) b.ImageFailed -= imageFailed;
#else
if (imageCompleted != null) b.DownloadCompleted -= imageCompleted;
if (imageFailed != null) b.DownloadFailed -= imageFailed;
#endif
ComputeIconTranslationValues(style, ms, b);
};
#if SILVERLIGHT
bi.ImageOpened += imageCompleted;
#else
bi.DownloadCompleted += imageCompleted;
#endif
}
else
{
ComputeIconTranslationValues(style, ms, bi);
}
}
catch
{
g.Symbol = PointSymbolDescriptor.GetDefaultSymbol();
ComputeIconTranslationValues(style, g.Symbol as KmlPlaceMarkerSymbol, ((g.Symbol as KmlPlaceMarkerSymbol).Fill as ImageBrush).ImageSource as BitmapImage);
var info = renderer.Infos.FirstOrDefault(i => i.Label == label);
if (info != null)
{
info.Symbol = g.Symbol;
}
}
}
// Copy attributes values from metadata to graphic
foreach (var attribute in feature.Attributes)
{
g.Attributes.Add(attribute.Key, attribute.Value);
}
// If the balloontext property has been assigned a value in the style associated with this
// graphic feature, then add it to the attributes collection.
if (!String.IsNullOrEmpty(style.BalloonText))
{
g.Attributes.Add("balloonText", style.BalloonText);
}
// Add graphic to graphics layer
graphics.Add(g);
}
layer.Graphics = graphics;
// keep the renderer for further usage (when QueryLegendInfos is called)
layer.RendererBasedOnStyle = renderer;
}
/// <summary>
/// Creates graphic elements and adds them to the graphics layer.
/// </summary>
/// <param name="layer">Graphics layer that will have features added to it.</param>
/// <param name="images">Dictionary of images coming from kmz content or from previous parsing</param>
public void CreateGraphics(KmlGraphicsLayer layer, IDictionary <string, ImageBrush> images)
{
if (layer == null)
{
return;
}
GraphicCollection graphics = new GraphicCollection();
UniqueValueRenderer renderer = new UniqueValueRenderer(); // dummy renderer used to create the legend items (since creation of the swatches from the symbol is not that obvious)
// Process each metadata feature in the list
foreach (PlacemarkDescriptor feature in placemarks)
{
KMLStyle style = feature.Symbol.style;
if (style.ZipFile != null)
{
// Look for the image in the zip file
if (style.IconImage == null && !String.IsNullOrEmpty(style.IconHref))
{
style.IconImage = GetIconImage(style.ZipFile, style.IconHref.ToLower());
}
style.ZipFile.Dispose();
style.ZipFile = null;
}
//Define handlers upfront so we can unhook from them
#if SILVERLIGHT
EventHandler <RoutedEventArgs>
#else
EventHandler
#endif
imageCompleted = null;
#if SILVERLIGHT
EventHandler <ExceptionRoutedEventArgs>
#else
EventHandler <ExceptionEventArgs>
#endif
imageFailed = null;
// If the style has an HREF then it is associated with an image
if (style.IconImage == null && !String.IsNullOrEmpty(style.IconHref))
{
// If the image is already loaded in the image dictionary, use it
if (images.ContainsKey(style.IconHref.ToLower()))
{
style.IconImage = images[style.IconHref.ToLower()];
}
else
{
// Get the image using the HREF and store the image in the images dictionary so that if
// other features reference it, it is cached
style.IconImage = GetIconImage(style.IconHref);
if (style.IconImage != null && (style.IconImage as ImageBrush).ImageSource != null)
{
var bi = (style.IconImage as ImageBrush).ImageSource as BitmapImage;
if (bi != null)
{
imageFailed = (s, e) =>
{
var b = s as BitmapImage;
#if SILVERLIGHT
if (imageCompleted != null)
{
b.ImageOpened -= imageCompleted;
}
if (imageFailed != null)
{
b.ImageFailed -= imageFailed;
}
#else
if (imageCompleted != null)
{
b.DownloadCompleted -= imageCompleted;
}
if (imageFailed != null)
{
b.DownloadFailed -= imageFailed;
}
#endif
var key = b.GetValue(BitmapImageKeyProperty) as string;
layer.Dispatcher.BeginInvoke((Action) delegate
{
UpdateGraphicsAndRenderer(layer, renderer, key);
});
};
#if SILVERLIGHT
bi.ImageFailed += imageFailed;
#else
bi.DownloadFailed += imageFailed;
#endif
}
}
images.Add(style.IconHref.ToLower(), style.IconImage);
}
}
// Create a new graphic from the metadata and construct the symbol using polymorphism
Graphic g = new Graphic()
{
Geometry = feature.Geometry,
Symbol = feature.Symbol.CreateSymbol(),
TimeExtent = feature.TimeExtent
};
g.SetValue(FeaturePlacemarkerDescriptorProperty, feature);
// Create legend entry
string label;
string description;
GetRendererInfo(feature, style, out label, out description);
if (!string.IsNullOrEmpty(label) && !renderer.Infos.Any(info => info.Label == label))
{
renderer.Infos.Add(new UniqueValueInfo {
Label = label, Description = description, Symbol = g.Symbol
});
}
// Adjust and assign picture marker symbol properties
if (g.Geometry is ESRI.ArcGIS.Client.Geometry.MapPoint && g.Symbol is KmlPlaceMarkerSymbol)
{
try
{
KmlPlaceMarkerSymbol ms = g.Symbol as KmlPlaceMarkerSymbol;
// To match sizing of Google Earth, default size of point images is 40x40
ms.Height = 40;
ms.Width = 40;
ms.Fill = style.IconImage;
ms.IconColor = style.IconColor;
// Default to half the pixel size (width and height) if symbol offsets are 0 (supported in wpf and sl3)
ImageBrush ib = ms.Fill;
BitmapImage bi = ib.ImageSource as BitmapImage;
#if SILVERLIGHT
if (bi.PixelHeight == 0 || bi.PixelWidth == 0)
#else
if (bi.IsDownloading)
#endif
{
imageCompleted = (s, e) =>
{
var b = s as BitmapImage;
#if SILVERLIGHT
if (imageCompleted != null)
{
b.ImageOpened -= imageCompleted;
}
if (imageFailed != null)
{
b.ImageFailed -= imageFailed;
}
#else
if (imageCompleted != null)
{
b.DownloadCompleted -= imageCompleted;
}
if (imageFailed != null)
{
b.DownloadFailed -= imageFailed;
}
#endif
ComputeIconTranslationValues(style, ms, b);
};
#if SILVERLIGHT
bi.ImageOpened += imageCompleted;
#else
bi.DownloadCompleted += imageCompleted;
#endif
}
else
{
ComputeIconTranslationValues(style, ms, bi);
}
}
catch
{
g.Symbol = PointSymbolDescriptor.GetDefaultSymbol();
ComputeIconTranslationValues(style, g.Symbol as KmlPlaceMarkerSymbol, ((g.Symbol as KmlPlaceMarkerSymbol).Fill as ImageBrush).ImageSource as BitmapImage);
var info = renderer.Infos.FirstOrDefault(i => i.Label == label);
if (info != null)
{
info.Symbol = g.Symbol;
}
}
}
// Copy attributes values from metadata to graphic
foreach (var attribute in feature.Attributes)
{
g.Attributes.Add(attribute.Key, attribute.Value);
}
// If the balloontext property has been assigned a value in the style associated with this
// graphic feature, then add it to the attributes collection.
if (!String.IsNullOrEmpty(style.BalloonText))
{
g.Attributes.Add("balloonText", style.BalloonText);
}
// Add graphic to graphics layer
graphics.Add(g);
}
layer.Graphics = graphics;
// keep the renderer for further usage (when QueryLegendInfos is called)
layer.RendererBasedOnStyle = renderer;
}
/// <summary>
/// Creates graphic elements and adds them to the graphics layer.
/// </summary>
/// <param name="layer">Graphics layer that will have features added to it.</param>
/// <param name="images">Dictionary of images coming from kmz content or from previous parsing</param>
public void CreateGraphics(KmlGraphicsLayer layer, IDictionary<string, ImageBrush> images)
{
if (layer == null) return;
GraphicCollection graphics = new GraphicCollection();
UniqueValueRenderer renderer = new UniqueValueRenderer(); // dummy renderer used to create the legend items (since creation of the swatches from the symbol is not that obvious)
// Process each metadata feature in the list
foreach (PlacemarkDescriptor feature in placemarks)
{
KMLStyle style = feature.Symbol.style;
if (style.ZipFile != null)
{
// Look for the image in the zip file
if (style.IconImage == null && !String.IsNullOrEmpty(style.IconHref))
{
style.IconImage = GetIconImage(style.ZipFile, style.IconHref.ToLower());
}
style.ZipFile.Dispose();
style.ZipFile = null;
}
// If the style has an HREF then it is associated with an image
if (style.IconImage == null && !String.IsNullOrEmpty(style.IconHref))
{
// If the image is already loaded in the image dictionary, use it
if (images.ContainsKey(style.IconHref.ToLower()))
style.IconImage = images[style.IconHref.ToLower()];
else
{
// Get the image using the HREF and store the image in the images dictionary so that if
// other features reference it, it is cached
style.IconImage = GetIconImage(style.IconHref);
images.Add(style.IconHref.ToLower(), style.IconImage);
}
}
// Create a new graphic from the metadata and construct the symbol using polymorphism
Graphic g = new Graphic()
{
Geometry = feature.Geometry,
Symbol = feature.Symbol.CreateSymbol()
};
// Create legend entry
string label = null;
string description = null;
if (string.IsNullOrEmpty(style.StyleId))
{
//if the feature is not using a shared style -> create an entry by graphic with the name as ident
if (feature.Attributes.ContainsKey("name"))
label = feature.Attributes["name"].ToString();
if (feature.Attributes.ContainsKey("description"))
description = feature.Attributes["description"].ToString();
}
else
{
//if the feature is using a shared style -> create an entry for the style
label = style.StyleId;
}
if (!string.IsNullOrEmpty(label) && !renderer.Infos.Any(info => info.Label == label))
renderer.Infos.Add(new UniqueValueInfo { Label = label, Description = description, Symbol = g.Symbol });
// Adjust and assign picture marker symbol properties
if (g.Geometry is ESRI.ArcGIS.Client.Geometry.MapPoint && g.Symbol is KmlPlaceMarkerSymbol)
{
try
{
#if SILVERLIGHT
string ext = style.IconHref.Substring(style.IconHref.LastIndexOf(".")).ToLower();
switch (ext)
{
case ".jpg":
case ".jpeg":
case ".png":
break;
default:
throw new System.Exception(string.Format(Properties.Resources.FeatureDefinition_ImageTypeNotSupported, ext));
}
#endif
KmlPlaceMarkerSymbol ms = g.Symbol as KmlPlaceMarkerSymbol;
// To match sizing of Google Earth, default size of point images is 40x40
ms.Height = 40;
ms.Width = 40;
ms.Fill = style.IconImage as ImageBrush;
// Default to half the pixel size (width and height) if symbol offsets are 0 (supported in wpf and sl3)
ImageBrush ib = ms.Fill;
BitmapImage bi = ib.ImageSource as BitmapImage;
#if SILVERLIGHT
if (bi.PixelHeight == 0 || bi.PixelWidth == 0)
{
EventHandler<RoutedEventArgs> completed = null;
completed = (s, e) =>
{
bi.ImageOpened -= completed;
ComputeIconTranslationValues(style, ms, bi);
};
bi.ImageOpened += completed;
}
#else
if (bi.IsDownloading)
{
EventHandler completed = null;
completed = (s, e) =>
{
bi.DownloadCompleted -= completed;
ComputeIconTranslationValues(style, ms, bi);
};
bi.DownloadCompleted += completed;
}
#endif
else
{
ComputeIconTranslationValues(style, ms, bi);
}
}
catch
{
g.Symbol = new SimpleMarkerSymbol();
}
}
// Copy attributes values from metadata to graphic
foreach (var attribute in feature.Attributes)
{
g.Attributes.Add(attribute.Key, attribute.Value);
}
// If the balloontext property has been assigned a value in the style associated with this
// graphic feature, then add it to the attributes collection.
if (!String.IsNullOrEmpty(style.BalloonText))
{
g.Attributes.Add("balloonText", style.BalloonText);
}
// Add graphic to graphics layer
graphics.Add(g);
}
layer.Graphics = graphics;
// Use the renderer to create the legend itens (asynchronously since creating a swatch from a symbol is asynchronous)
renderer.QueryLegendInfos(layerLegendInfo => { layer.LegendInfo = layerLegendInfo;}, null);
}
