/// <summary>
/// Constructs a new DatabaseRenderer that will not draw labels, instead it stores the label
/// information in the labelStore for drawing by a LabelLayer.
/// </summary>
/// <param name="mapDatabase">
/// the MapDatabase from which the map data will be read. </param>
public DatabaseRenderer(MapDataStore mapDatabase, IGraphicFactory graphicFactory, TileBasedLabelStore labelStore)
{
this.mapDatabase = mapDatabase;
this.graphicFactory = graphicFactory;
this.labelStore = labelStore;
this.renderLabels = false;
this.tileCache = null;
this.tileDependencies = null;
}
/// <summary>
/// Constructs a new DatabaseRenderer that will draw labels onto the tiles.
/// </summary>
/// <param name="mapFile">
/// the MapDatabase from which the map data will be read. </param>
public DatabaseRenderer(MapDataStore mapFile, IGraphicFactory graphicFactory, TileCache tileCache)
{
this.mapDatabase = mapFile;
this.graphicFactory = graphicFactory;
this.labelStore = null;
this.renderLabels = true;
this.tileCache = tileCache;
this.tileDependencies = new TileDependencies();
}
public static IResourceBitmap CreateBitmap(IGraphicFactory graphicFactory, DisplayModel displayModel, string relativePathPrefix, string src, int width, int height, int percent)
{
if (string.ReferenceEquals(src, null) || src.Length == 0)
{
// no image source defined
return(null);
}
System.IO.Stream inputStream = graphicFactory.PlatformSpecificSources(relativePathPrefix, src);
if (inputStream == null)
{
inputStream = CreateInputStream(relativePathPrefix, src);
}
try
{
string absoluteName = GetAbsoluteName(relativePathPrefix, src);
// we need to hash with the width/height included as the same symbol could be required
// in a different size and must be cached with a size-specific hash
int hash = (new StringBuilder()).Append(absoluteName).Append(width).Append(height).Append(percent).ToString().GetHashCode();
if (src.EndsWith(".svg", StringComparison.Ordinal))
{
try
{
return(graphicFactory.RenderSvg(inputStream, displayModel.ScaleFactor, width, height, percent, hash));
}
catch (IOException e)
{
throw new IOException("SVG render failed " + src, e);
}
}
try
{
return(graphicFactory.CreateResourceBitmap(inputStream, absoluteName.GetHashCode()));
}
catch (IOException e)
{
throw new IOException("Reading bitmap file failed " + src, e);
}
}
finally
{
inputStream = null;
}
}
public ScreenHelper(IGraphicFactory graphicFactory)
{
_graphicFactory = graphicFactory;
}
