azgrid/ExposeProperties.cs at master · cesarpachon/azgrid · GitHub

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/**
 * cesar: copied from http://unifycommunity.com/wiki/index.php?title=Expose_properties_in_inspector
 */
using UnityEditor;
using UnityEngine;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Reflection;


public static class ExposeProperties
{
    public static void Expose( PropertyField[] properties )
    {

        GUILayoutOption[] emptyOptions = new GUILayoutOption[0];

        EditorGUILayout.BeginVertical( emptyOptions );

        foreach ( PropertyField field in properties )
        {

            EditorGUILayout.BeginHorizontal( emptyOptions );

            switch ( field.Type )
            {
            case SerializedPropertyType.Integer:
                    field.SetValue( EditorGUILayout.IntField( field.Name, (int)field.GetValue(), emptyOptions ) );
                break;

            case SerializedPropertyType.Float:
                    field.SetValue( EditorGUILayout.FloatField( field.Name, (float)field.GetValue(), emptyOptions ) );
                break;

            case SerializedPropertyType.Boolean:
                    field.SetValue( EditorGUILayout.Toggle( field.Name, (bool)field.GetValue(), emptyOptions ) );
                break;

            case SerializedPropertyType.String:
                    field.SetValue( EditorGUILayout.TextField( field.Name, (String)field.GetValue(), emptyOptions ) );
                break;

            case SerializedPropertyType.Vector2:
                    field.SetValue( EditorGUILayout.Vector2Field( field.Name, (Vector2)field.GetValue(), emptyOptions ) );
                break;

            case SerializedPropertyType.Vector3:
                    field.SetValue( EditorGUILayout.Vector3Field( field.Name, (Vector3)field.GetValue(), emptyOptions ) );
                break;


            case SerializedPropertyType.Enum:
                        field.SetValue(EditorGUILayout.EnumPopup(field.Name, (Enum)field.GetValue(), emptyOptions));
                break;

            default:

                break;

            }

            EditorGUILayout.EndHorizontal();

        }

        EditorGUILayout.EndVertical();

    }

    public static PropertyField[] GetProperties( System.Object obj )
    {

        List< PropertyField > fields = new List<PropertyField>();

        PropertyInfo[] infos = obj.GetType().GetProperties( BindingFlags.Public | BindingFlags.Instance );

        foreach ( PropertyInfo info in infos )
        {

            if ( ! (info.CanRead && info.CanWrite) )
                continue;

            object[] attributes = info.GetCustomAttributes( true );

            bool isExposed = false;

            foreach( object o in attributes )
            {
                if ( o.GetType() == typeof( ExposePropertyAttribute ) )
                {
                    isExposed = true;
                    break;
                }
            }

            if ( !isExposed )
                continue;

            SerializedPropertyType type = SerializedPropertyType.Integer;

            if( PropertyField.GetPropertyType( info, out type ) )
            {
                PropertyField field = new PropertyField( obj, info, type );
                fields.Add( field );
            }

        }

        return fields.ToArray();

    }

}


public class PropertyField
{
    System.Object m_Instance;
    PropertyInfo m_Info;
    SerializedPropertyType m_Type;

    MethodInfo m_Getter;
    MethodInfo m_Setter;

    public SerializedPropertyType Type
    {
        get
        {
            return m_Type;
        }
    }

    public String Name
    {
        get
        {
            return ObjectNames.NicifyVariableName( m_Info.Name );
        }
    }

    public PropertyField( System.Object instance, PropertyInfo info, SerializedPropertyType type )
    {

        m_Instance = instance;
        m_Info = info;
        m_Type = type;

        m_Getter = m_Info.GetGetMethod();
        m_Setter = m_Info.GetSetMethod();
    }

    public System.Object GetValue()
    {
        return m_Getter.Invoke( m_Instance, null );
    }

    public void SetValue( System.Object value )
    {
        m_Setter.Invoke( m_Instance, new System.Object[] { value } );
    }

    public static bool GetPropertyType( PropertyInfo info, out SerializedPropertyType propertyType )
    {

        propertyType = SerializedPropertyType.Generic;

        Type type = info.PropertyType;

        if ( type == typeof( int ) )
        {
            propertyType = SerializedPropertyType.Integer;
            return true;
        }

        if ( type == typeof( float ) )
        {
            propertyType = SerializedPropertyType.Float;
            return true;
        }

        if ( type == typeof( bool ) )
        {
            propertyType = SerializedPropertyType.Boolean;
            return true;
        }

        if ( type == typeof( string ) )
        {
            propertyType = SerializedPropertyType.String;
            return true;
        }

        if ( type == typeof( Vector2 ) )
        {
            propertyType = SerializedPropertyType.Vector2;
            return true;
        }

        if ( type == typeof( Vector3 ) )
        {
            propertyType = SerializedPropertyType.Vector3;
            return true;
        }

        if ( type.IsEnum )
        {
            propertyType = SerializedPropertyType.Enum;
            return true;
        }

        return false;

    }

}