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Changed license to Apache License 2.0

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Markus Ewald 2024-06-14 16:42:33 +02:00 • committed by cygon
parent 857917aad5
commit 0037b7de46
47 changed files with 5942 additions and 5849 deletions
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Source/Views/ViewForm.cs
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@ -1,89 +1,88 @@
#region CPL License
/*
Nuclex Framework
Copyright (C) 2002-2019 Nuclex Development Labs
This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.
You should have received a copy of the IBM Common Public
License along with this library
*/
#endregion
using System;
using System.ComponentModel;
using System.Windows.Forms;
using Nuclex.Support;
namespace Nuclex.Windows.Forms.Views {
/// <summary>
/// Base class for MVVM windows that act as views connected to a view model
/// </summary>
public class ViewForm : Form, IView {
/// <summary>Initializes a new view control</summary>
public ViewForm() {
this.onViewModelPropertyChangedDelegate = OnViewModelPropertyChanged;
}
/// <summary>Provides the data binding target for the view</summary>
public object DataContext {
get { return this.dataContext; }
set {
if(value != this.dataContext) {
object oldDataContext = this.dataContext;
this.dataContext = value;
OnDataContextChanged(this, oldDataContext, value);
}
}
}
/// <summary>Called when the window's data context is changed</summary>
/// <param name="sender">Window whose data context was changed</param>
/// <param name="oldDataContext">Data context that was previously used</param>
/// <param name="newDataContext">Data context that will be used from now on</param>
protected virtual void OnDataContextChanged(
object sender, object oldDataContext, object newDataContext
) {
var oldViewModel = oldDataContext as INotifyPropertyChanged;
if(oldViewModel != null) {
oldViewModel.PropertyChanged -= this.onViewModelPropertyChangedDelegate;
}
var newViewModel = newDataContext as INotifyPropertyChanged;
if(newViewModel != null) {
newViewModel.PropertyChanged += this.onViewModelPropertyChangedDelegate;
InvalidateAllViewModelProperties();
}
}
/// <summary>Refreshes all properties from the view model</summary>
protected void InvalidateAllViewModelProperties() {
OnViewModelPropertyChanged(this.dataContext, PropertyChangedEventArgsHelper.Wildcard);
}
/// <summary>Called when a property of the view model is changed</summary>
/// <param name="sender">View model in which a property was changed</param>
/// <param name="arguments">Contains the name of the property that has changed</param>
protected virtual void OnViewModelPropertyChanged(
object sender, PropertyChangedEventArgs arguments
) { }
/// <summary>Active data binding target, can be null</summary>
private object dataContext;
/// <summary>Delegate for the OnViewModelPropertyChanged() method</summary>
private PropertyChangedEventHandler onViewModelPropertyChangedDelegate;
}
} // namespace Nuclex.Windows.Forms.Views
#region Apache License 2.0
/*
Nuclex .NET Framework
Copyright (C) 2002-2024 Markus Ewald / Nuclex Development Labs
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#endregion // Apache License 2.0
using System;
using System.ComponentModel;
using System.Windows.Forms;
using Nuclex.Support;
namespace Nuclex.Windows.Forms.Views {
/// <summary>
/// Base class for MVVM windows that act as views connected to a view model
/// </summary>
public class ViewForm : Form, IView {
/// <summary>Initializes a new view control</summary>
public ViewForm() {
this.onViewModelPropertyChangedDelegate = OnViewModelPropertyChanged;
}
/// <summary>Provides the data binding target for the view</summary>
public object DataContext {
get { return this.dataContext; }
set {
if(value != this.dataContext) {
object oldDataContext = this.dataContext;
this.dataContext = value;
OnDataContextChanged(this, oldDataContext, value);
}
}
}
/// <summary>Called when the window's data context is changed</summary>
/// <param name="sender">Window whose data context was changed</param>
/// <param name="oldDataContext">Data context that was previously used</param>
/// <param name="newDataContext">Data context that will be used from now on</param>
protected virtual void OnDataContextChanged(
object sender, object oldDataContext, object newDataContext
) {
var oldViewModel = oldDataContext as INotifyPropertyChanged;
if(oldViewModel != null) {
oldViewModel.PropertyChanged -= this.onViewModelPropertyChangedDelegate;
}
var newViewModel = newDataContext as INotifyPropertyChanged;
if(newViewModel != null) {
newViewModel.PropertyChanged += this.onViewModelPropertyChangedDelegate;
InvalidateAllViewModelProperties();
}
}
/// <summary>Refreshes all properties from the view model</summary>
protected void InvalidateAllViewModelProperties() {
OnViewModelPropertyChanged(this.dataContext, PropertyChangedEventArgsHelper.Wildcard);
}
/// <summary>Called when a property of the view model is changed</summary>
/// <param name="sender">View model in which a property was changed</param>
/// <param name="arguments">Contains the name of the property that has changed</param>
protected virtual void OnViewModelPropertyChanged(
object sender, PropertyChangedEventArgs arguments
) { }
/// <summary>Active data binding target, can be null</summary>
private object dataContext;
/// <summary>Delegate for the OnViewModelPropertyChanged() method</summary>
private PropertyChangedEventHandler onViewModelPropertyChangedDelegate;
}
} // namespace Nuclex.Windows.Forms.Views