public Win2DIcon(INodeIcon icon, ICanvasControl canvasControl)
{
Guard.NotNull(icon, nameof(icon));
name = icon.Name;
LoadFile(icon, canvasControl.Device).ContinueWith(task => AttachBitmap(canvasControl, task));
}
protected override void Execute(bool isRedo)
{
oldIcon = Node.Icon;
Node.ChangeIcon(newIcon);
if (isRedo)
{
Node.Select();
}
}
private static async Task <CanvasBitmap> LoadFile(INodeIcon icon, ICanvasResourceCreator device)
{
using (var stream = await icon.OpenAsStreamAsync())
{
if (stream != null)
{
return(await CanvasBitmap.LoadAsync(device, stream.AsRandomAccessStream()).AsTask());
}
return(null);
}
}
public static void ChangeIconTransactional(this NodeBase node, INodeIcon icon)
{
if (node.Document != null && !Equals(node.Icon, icon))
{
var transactionName = LocalizationManager.GetString("TransactionName_ChangeIcon");
node.Document.MakeTransaction(transactionName, commands =>
{
commands.Apply(new ChangeIconCommand(node, icon));
});
}
}
internal void ChangeIcon(INodeIcon newIcon)
{
Icon = newIcon;
}
public ChangeIconCommand(NodeBase nodeId, INodeIcon newIcon)
: base(nodeId)
{
this.newIcon = newIcon;
}
public ChangeIconCommand(PropertiesBag properties, Document document)
: base(properties, document)
{
newIcon = KeyIcon.TryParse(properties) ?? AttachmentIcon.TryParse(properties);
}
public bool Equals(INodeIcon other)
{
return(Equals(other as AttachmentIcon));
}
public bool Equals(INodeIcon other)
{
return(Equals(other as KeyIcon));
}