/// <summary>
/// Initializes a new instance of the <see cref="ContentManifestGroup"/> class.
/// </summary>
/// <param name="manifest">The content manifest that owns the group.</param>
/// <param name="element">The XML element that defines the content manifest group.</param>
internal ContentManifestGroup(ContentManifest manifest, XElement element)
{
Contract.Require(manifest, nameof(manifest));
Contract.Require(element, nameof(element));
var name = element.AttributeValueString("Name");
if (String.IsNullOrEmpty(name))
{
throw new InvalidDataException(UltravioletStrings.InvalidContentManifestGroupName);
}
var directory = element.AttributeValueString("Directory");
var typeName = element.AttributeValueString("Type");
if (String.IsNullOrEmpty(typeName))
{
throw new InvalidDataException(UltravioletStrings.InvalidContentManifestGroupType.Format(name));
}
var type = FindTypeByName(typeName);
this.Manifest = manifest;
this.Name = name;
this.Type = type ?? throw new InvalidDataException(UltravioletStrings.InvalidContentManifestGroupType.Format(name));
this.Directory = directory;
var assets = element.Elements("Asset");
foreach (var asset in assets)
{
AddInternal(new ContentManifestAsset(this, asset));
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ContentManifestGroup"/> class.
/// </summary>
/// <param name="manifest">The content manifest that owns the group.</param>
/// <param name="desc">The manifest group description.</param>
internal ContentManifestGroup(ContentManifest manifest, ContentManifestGroupDescription desc)
{
Contract.Require(manifest, nameof(manifest));
Contract.Require(desc, nameof(desc));
if (String.IsNullOrEmpty(desc.Name))
{
throw new InvalidDataException(UltravioletStrings.InvalidContentManifestGroupName);
}
if (String.IsNullOrEmpty(desc.Type))
{
throw new InvalidDataException(UltravioletStrings.InvalidContentManifestGroupType.Format(desc.Name));
}
var type = Type.GetType(desc.Type, false);
if (type == null)
{
throw new InvalidDataException(UltravioletStrings.InvalidContentManifestGroupType.Format(desc.Name));
}
this.Manifest = manifest;
this.Name = desc.Name;
this.Type = type;
this.Directory = desc.Directory;
if (desc.Assets != null)
{
foreach (var asset in desc.Assets)
{
AddInternal(new ContentManifestAsset(this, asset));
}
}
}
/// <summary>
/// Adds a step to the content loader which loads the specified content manifest
/// into the content manager's asset cache.
/// </summary>
/// <param name="manifest">The content manifest to load.</param>
public void AddStep(ContentManifest manifest)
{
Contract.Require(manifest, nameof(manifest));
AddStepInternal(() => { content.Load(manifest); });
}