184 lines
5.8 KiB
C#
184 lines
5.8 KiB
C#
using System;
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using System.Reflection;
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namespace FolderSelect
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{
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/// <summary>
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/// This class is from the Front-End for Dosbox and is used to present a 'vista' dialog box to select folders.
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/// Being able to use a vista style dialog box to select folders is much better then using the shell folder browser.
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/// http://code.google.com/p/fed/
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///
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/// Example:
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/// var r = new Reflector("System.Windows.Forms");
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/// </summary>
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public class Reflector
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{
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#region variables
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string m_ns;
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Assembly m_asmb;
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#endregion
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#region Constructors
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="ns">The namespace containing types to be used</param>
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public Reflector(string ns)
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: this(ns, ns)
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{ }
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="an">A specific assembly name (used if the assembly name does not tie exactly with the namespace)</param>
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/// <param name="ns">The namespace containing types to be used</param>
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public Reflector(string an, string ns)
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{
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m_ns = ns;
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m_asmb = null;
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foreach (AssemblyName aN in Assembly.GetExecutingAssembly().GetReferencedAssemblies())
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{
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if (aN.FullName.StartsWith(an))
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{
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m_asmb = Assembly.Load(aN);
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break;
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}
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}
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}
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#endregion
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#region Methods
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/// <summary>
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/// Return a Type instance for a type 'typeName'
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/// </summary>
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/// <param name="typeName">The name of the type</param>
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/// <returns>A type instance</returns>
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public Type GetType(string typeName)
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{
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Type type = null;
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string[] names = typeName.Split('.');
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if (names.Length > 0)
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type = m_asmb.GetType(m_ns + "." + names[0]);
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for (int i = 1; i < names.Length; ++i) {
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type = type.GetNestedType(names[i], BindingFlags.NonPublic);
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}
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return type;
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}
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/// <summary>
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/// Create a new object of a named type passing along any params
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/// </summary>
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/// <param name="name">The name of the type to create</param>
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/// <param name="parameters"></param>
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/// <returns>An instantiated type</returns>
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public object New(string name, params object[] parameters)
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{
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Type type = GetType(name);
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ConstructorInfo[] ctorInfos = type.GetConstructors();
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foreach (ConstructorInfo ci in ctorInfos) {
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try {
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return ci.Invoke(parameters);
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} catch { }
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}
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return null;
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}
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/// <summary>
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/// Calls method 'func' on object 'obj' passing parameters 'parameters'
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/// </summary>
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/// <param name="obj">The object on which to excute function 'func'</param>
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/// <param name="func">The function to execute</param>
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/// <param name="parameters">The parameters to pass to function 'func'</param>
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/// <returns>The result of the function invocation</returns>
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public object Call(object obj, string func, params object[] parameters)
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{
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return Call2(obj, func, parameters);
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}
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/// <summary>
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/// Calls method 'func' on object 'obj' passing parameters 'parameters'
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/// </summary>
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/// <param name="obj">The object on which to excute function 'func'</param>
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/// <param name="func">The function to execute</param>
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/// <param name="parameters">The parameters to pass to function 'func'</param>
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/// <returns>The result of the function invocation</returns>
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public object Call2(object obj, string func, object[] parameters)
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{
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return CallAs2(obj.GetType(), obj, func, parameters);
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}
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/// <summary>
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/// Calls method 'func' on object 'obj' which is of type 'type' passing parameters 'parameters'
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/// </summary>
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/// <param name="type">The type of 'obj'</param>
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/// <param name="obj">The object on which to excute function 'func'</param>
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/// <param name="func">The function to execute</param>
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/// <param name="parameters">The parameters to pass to function 'func'</param>
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/// <returns>The result of the function invocation</returns>
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public object CallAs(Type type, object obj, string func, params object[] parameters)
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{
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return CallAs2(type, obj, func, parameters);
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}
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/// <summary>
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/// Calls method 'func' on object 'obj' which is of type 'type' passing parameters 'parameters'
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/// </summary>
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/// <param name="type">The type of 'obj'</param>
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/// <param name="obj">The object on which to excute function 'func'</param>
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/// <param name="func">The function to execute</param>
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/// <param name="parameters">The parameters to pass to function 'func'</param>
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/// <returns>The result of the function invocation</returns>
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public object CallAs2(Type type, object obj, string func, object[] parameters) {
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MethodInfo methInfo = type.GetMethod(func, BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
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return methInfo.Invoke(obj, parameters);
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}
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/// <summary>
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/// Returns the value of property 'prop' of object 'obj'
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/// </summary>
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/// <param name="obj">The object containing 'prop'</param>
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/// <param name="prop">The property name</param>
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/// <returns>The property value</returns>
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public object Get(object obj, string prop)
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{
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return GetAs(obj.GetType(), obj, prop);
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}
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/// <summary>
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/// Returns the value of property 'prop' of object 'obj' which has type 'type'
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/// </summary>
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/// <param name="type">The type of 'obj'</param>
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/// <param name="obj">The object containing 'prop'</param>
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/// <param name="prop">The property name</param>
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/// <returns>The property value</returns>
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public object GetAs(Type type, object obj, string prop) {
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PropertyInfo propInfo = type.GetProperty(prop, BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
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return propInfo.GetValue(obj, null);
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}
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/// <summary>
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/// Returns an enum value
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/// </summary>
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/// <param name="typeName">The name of enum type</param>
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/// <param name="name">The name of the value</param>
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/// <returns>The enum value</returns>
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public object GetEnum(string typeName, string name) {
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Type type = GetType(typeName);
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FieldInfo fieldInfo = type.GetField(name);
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return fieldInfo.GetValue(null);
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}
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#endregion
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}
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}
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