/// <summary>
/// 根据指定的模块类型和方法创建命令描述对象
/// </summary>
/// <param name="moduleType">模块类型</param>
/// <param name="method">方法对象</param>
/// <param name="throwException">若操作失败是否抛出异常</param>
/// <returns>命令描述对象</returns>
public static WriterCommandDescriptor Create(Type moduleType, MethodInfo method, bool throwException)
{
if (moduleType == null)
{
if (throwException)
{
throw new ArgumentNullException("moduleType");
}
}
if (method == null)
{
if (throwException)
{
throw new ArgumentNullException("method");
}
else
{
return(null);
}
}
WriterCommandDescriptionAttribute attr = (WriterCommandDescriptionAttribute)
Attribute.GetCustomAttribute(
method,
typeof(WriterCommandDescriptionAttribute),
false);
System.Reflection.ParameterInfo[] ps = method.GetParameters();
if (attr == null ||
method.ReturnType.Equals(typeof(void)) == false ||
ps == null ||
ps.Length != 2)
{
if (throwException)
{
throw new ArgumentException(moduleType.FullName + "#" + method.Name);
}
else
{
return(null);
}
}
if (ps[0].ParameterType.Equals(typeof(object)) &&
ps[1].ParameterType.Equals(typeof(WriterCommandEventArgs)))
{
string name = attr.Name;
//System.EventHandler h = new EventHandler( objInstance , m.Name );// m.MethodHandle );
if (name == null || name.Trim().Length == 0)
{
name = method.Name;
}
WriterCommandDescriptor descriptor = new WriterCommandDescriptor();
descriptor.CommandName = name;
descriptor.ContainerType = moduleType;
descriptor.Method = method;
descriptor.ShortcutKey = attr.ShortcutKey;
descriptor.ImageResource = attr.ImageResource;
descriptor.Description = attr.Description;
string resource = attr.ImageResource;
if (resource == null || resource.Trim().Length == 0)
{
resource = moduleType.Namespace + "." + name + ".bmp";
}
if (resource != null)
{
descriptor.Image = CommandUtils.GetResourceImage(moduleType.Assembly, resource.Trim());
}
//if (descriptor.Image == null)
//{
// descriptor.Image = CommandUtils.NullImage;
//}
if (descriptor.Description == null || descriptor.Description.Trim().Length == 0)
{
// 获得说明
DescriptionAttribute da = (DescriptionAttribute)Attribute.GetCustomAttribute(
method,
typeof(DescriptionAttribute),
true);
if (da != null)
{
descriptor.Description = da.Description;
}
}
return(descriptor);
}
else
{
if (throwException)
{
throw new ArgumentException(moduleType.FullName + "#" + method.Name);
}
else
{
return(null);
}
}
}
/// <summary>
/// 根据指定的命令对象类型创建命令描述对象
/// </summary>
/// <param name="commandType">命令类型</param>
/// <param name="throwException">若操作失败是否抛出异常</param>
/// <returns>创建的命令描述对象</returns>
public static WriterCommandDescriptor Create(Type commandType, bool throwException)
{
if (commandType == null)
{
if (throwException)
{
throw new ArgumentNullException("commandType");
}
else
{
return(null);
}
}
if (commandType.IsSubclassOf(typeof(WriterCommand)) == false)
{
if (throwException)
{
throw new ArgumentException(commandType.FullName);
}
else
{
return(null);
}
}
WriterCommandDescriptionAttribute attr = (WriterCommandDescriptionAttribute)Attribute.GetCustomAttribute(
commandType, typeof(WriterCommandDescriptionAttribute), false);
//if (attr == null)
//{
// if (throwException)
// {
// throw new ArgumentException(commandType.FullName);
// }
// else
// {
// return null;
// }
//}
WriterCommandDescriptor descriptor = new WriterCommandDescriptor();
descriptor.ContainerType = commandType;
descriptor.CommandName = commandType.Name;
if (attr != null)
{
descriptor.CommandName = attr.Name;
descriptor.Description = attr.Description;
descriptor.ImageResource = attr.ImageResource;
descriptor.ShortcutKey = attr.ShortcutKey;
string src = attr.ImageResource;
if (src != null && src.Trim().Length > 0)
{
descriptor.Image = CommandUtils.GetResourceImage(commandType.Assembly, src.Trim());
}
}
//if (descriptor.Image == null)
//{
// descriptor.Image = CommandUtils.NullImage;
//}
if (descriptor.Description == null || descriptor.Description.Trim().Length == 0)
{
DescriptionAttribute da = (DescriptionAttribute)Attribute.GetCustomAttribute(
commandType,
typeof(DescriptionAttribute),
true);
if (da != null)
{
descriptor.Description = da.Description;
}
}
return(descriptor);
}