public static WheelGestureData FromEventArgs(CanExecuteToolEventArgs e)
{
if (e == null)
{
throw new ArgumentNullException("e");
}
return(GestureData.FromParameter <WheelGestureData>(e.Parameter));
}
internal bool OnExecute(EditingContext sender, ExecutedToolEventArgs e)
{
CanExecuteToolEventArgs e1 = new CanExecuteToolEventArgs((ICommand)this._command, e.Parameter);
if (this.Execute == null || !this.OnCanExecute(sender, e1))
{
return(false);
}
this.Execute((object)sender, e);
return(true);
}
internal bool OnCanExecute(EditingContext sender, CanExecuteToolEventArgs e)
{
if (this.CanExecute != null)
{
this.CanExecute((object)sender, e);
if (!e.CanExecute)
{
return(false);
}
}
return(e.CanExecute = this.Execute != null);
}
public bool CanExecute(GestureData data)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
if (data.Context == null)
{
throw new ArgumentException(Resources.Error_MissingContext);
}
ToolCommandBinding commandBinding = this.GetCommandBinding(data);
if (commandBinding == null)
{
return(false);
}
CanExecuteToolEventArgs e = new CanExecuteToolEventArgs((ICommand)this, (object)data);
return(commandBinding.OnCanExecute(data.Context, e));
}