80 lines
1.7 KiB
C#
80 lines
1.7 KiB
C#
using System;
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using System.Windows.Input;
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namespace PettingZoo.UI
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{
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public class DelegateCommand<T> : ICommand where T : class?
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{
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private readonly Func<T?, bool>? canExecute;
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private readonly Action<T?> execute;
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public event EventHandler? CanExecuteChanged;
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public DelegateCommand(Action<T?> execute) : this(execute, null)
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{
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}
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public DelegateCommand(Action<T?> execute, Func<T?, bool>? canExecute)
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{
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this.execute = execute;
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this.canExecute = canExecute;
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}
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public bool CanExecute(object? parameter)
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{
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return canExecute == null || canExecute((T?)parameter);
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}
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public void Execute(object? parameter)
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{
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execute((T?)parameter);
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}
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public void RaiseCanExecuteChanged()
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{
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CanExecuteChanged?.Invoke(this, EventArgs.Empty);
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}
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}
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public class DelegateCommand : ICommand
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{
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private readonly Func<bool>? canExecute;
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private readonly Action execute;
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public event EventHandler? CanExecuteChanged;
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public DelegateCommand(Action execute) : this(execute, null) { }
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public DelegateCommand(Action execute, Func<bool>? canExecute)
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{
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this.execute = execute;
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this.canExecute = canExecute;
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}
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public bool CanExecute(object? parameter)
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{
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return canExecute == null || canExecute();
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}
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public void Execute(object? parameter)
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{
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execute();
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}
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public void RaiseCanExecuteChanged()
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{
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CanExecuteChanged?.Invoke(this, EventArgs.Empty);
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}
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}
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}
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