Exemplo n.º 1
0
        /// <summary>
        /// Draws the property.
        /// </summary>
        protected override void DrawPropertyLayout(InspectorProperty property, InfoBoxAttribute attribute, GUIContent label)
        {
            PropertyContext <InfoBoxContext> context = null;

            context = property.Context.Get(this, "Config_" + this.GetHashCode(), (InfoBoxContext)null);
            if (context.Value == null)
            {
                context.Value = new InfoBoxContext()
                {
                    MessageHelper = new StringMemberHelper(property.ParentType, attribute.Message)
                };

                context.Value.ErrorMessage = context.Value.MessageHelper.ErrorMessage;

                MemberInfo memberInfo;

                if (attribute.VisibleIf != null)
                {
                    // Parameter functions
                    if (property.ValueEntry != null &&
                        property.ParentType.FindMember()
                        .IsMethod()
                        .HasReturnType <bool>()
                        .HasParameters(property.ValueEntry.BaseValueType)
                        .IsNamed(attribute.VisibleIf)
                        .TryGetMember(out memberInfo, out context.Value.ErrorMessage))
                    {
                        if (context.Value.ErrorMessage == null)
                        {
                            if (memberInfo is MethodInfo)
                            {
                                if (memberInfo.IsStatic())
                                {
                                    context.Value.StaticValidationParameterMethod = memberInfo as MethodInfo;
                                }
                                else
                                {
                                    context.Value.InstanceValidationParameterMethod = memberInfo as MethodInfo;
                                }
                            }
                            else
                            {
                                context.Value.ErrorMessage = "Invalid member type!";
                            }
                        }
                    }
                    // Fields, properties, and no-parameter functions.
                    else if (property.ParentType.FindMember()
                             .HasReturnType <bool>()
                             .HasNoParameters()
                             .IsNamed(attribute.VisibleIf)
                             .TryGetMember(out memberInfo, out context.Value.ErrorMessage))
                    {
                        if (context.Value.ErrorMessage == null)
                        {
                            if (memberInfo is FieldInfo)
                            {
                                if (memberInfo.IsStatic())
                                {
                                    context.Value.StaticValidationCaller = EmitUtilities.CreateStaticFieldGetter <bool>(memberInfo as FieldInfo);
                                }
                                else
                                {
                                    context.Value.InstanceValueGetter = EmitUtilities.CreateWeakInstanceFieldGetter(property.ParentType, memberInfo as FieldInfo);
                                }
                            }
                            else if (memberInfo is PropertyInfo)
                            {
                                if (memberInfo.IsStatic())
                                {
                                    context.Value.StaticValidationCaller = EmitUtilities.CreateStaticPropertyGetter <bool>(memberInfo as PropertyInfo);
                                }
                                else
                                {
                                    context.Value.InstanceValueGetter = EmitUtilities.CreateWeakInstancePropertyGetter(property.ParentType, memberInfo as PropertyInfo);
                                }
                            }
                            else if (memberInfo is MethodInfo)
                            {
                                if (memberInfo.IsStatic())
                                {
                                    context.Value.StaticValidationCaller = (Func <bool>)Delegate.CreateDelegate(typeof(Func <bool>), memberInfo as MethodInfo);
                                }
                                else
                                {
                                    context.Value.InstanceValidationMethodCaller = EmitUtilities.CreateWeakInstanceMethodCallerFunc <bool>(memberInfo as MethodInfo);
                                }
                            }
                            else
                            {
                                context.Value.ErrorMessage = "Invalid member type!";
                            }
                        }
                    }
                }
            }

            if (context.Value.ErrorMessage != null)
            {
                AllEditorGUI.ErrorMessageBox(context.Value.ErrorMessage);
            }
            else
            {
                if (Event.current.type == EventType.Layout)
                {
                    var parentValue = property.ParentValues[0];

                    try
                    {
                        context.Value.DrawMessageBox =
                            attribute.VisibleIf == null ||
                            (context.Value.StaticValidationParameterMethod != null && (bool)context.Value.StaticValidationParameterMethod.Invoke(null, new object[] { property.ValueEntry.WeakSmartValue })) ||
                            (context.Value.InstanceValidationParameterMethod != null && (bool)context.Value.InstanceValidationParameterMethod.Invoke(null, new object[] { property.ParentValues[0], property.ValueEntry.WeakSmartValue })) ||
                            (context.Value.InstanceValidationMethodCaller != null && context.Value.InstanceValidationMethodCaller(property.ParentValues[0])) ||
                            (context.Value.InstanceValueGetter != null && (bool)context.Value.InstanceValueGetter(ref parentValue)) ||
                            (context.Value.StaticValidationCaller != null && context.Value.StaticValidationCaller());
                    }
                    catch (System.Exception ex)
                    {
                        Debug.LogException(ex);
                    }
                }

                if (context.Value.DrawMessageBox)
                {
                    switch (attribute.InfoMessageType)
                    {
                    case InfoMessageType.None:
                        AllEditorGUI.MessageBox(context.Value.MessageHelper.GetString(property));
                        break;

                    case InfoMessageType.Info:
                        AllEditorGUI.InfoMessageBox(context.Value.MessageHelper.GetString(property));
                        break;

                    case InfoMessageType.Warning:
                        AllEditorGUI.WarningMessageBox(context.Value.MessageHelper.GetString(property));
                        break;

                    case InfoMessageType.Error:
                        AllEditorGUI.ErrorMessageBox(context.Value.MessageHelper.GetString(property));
                        break;

                    default:
                        AllEditorGUI.ErrorMessageBox("Unknown InfoBoxType: " + attribute.InfoMessageType.ToString());
                        break;
                    }
                }
            }

            this.CallNextDrawer(property, label);
        }