/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the Qt VS Tools.
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**
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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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using System.ComponentModel;
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using System.Runtime.CompilerServices;
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namespace QtVsTools.Core
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{
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public abstract class Observable : INotifyPropertyChanged
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{
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public event PropertyChangedEventHandler PropertyChanged;
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public static T GetPropertyValue<T>(object obj, string name)
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{
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var retval = GetPropertyValue(obj, name);
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if (retval == null)
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return default(T);
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return (T)retval;
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}
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public static object GetPropertyValue(object obj, string name)
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{
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foreach (var part in name.Split('.')) {
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if (obj == null)
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return null;
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var type = obj.GetType();
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var propertyInfo = type.GetProperty(part);
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if (propertyInfo == null)
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return null;
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obj = propertyInfo.GetValue(obj, null);
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}
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return obj;
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}
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protected void SetValue<T>(ref T storage, T value, [CallerMemberName] string name = null)
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{
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if (Equals(storage, value))
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return;
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storage = value;
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OnPropertyChanged(name);
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}
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protected void OnPropertyChanged([CallerMemberName] string propertyName = null)
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{
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var eventHandler = PropertyChanged;
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if (eventHandler != null)
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eventHandler.Invoke(this, new PropertyChangedEventArgs(propertyName));
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}
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}
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}
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