/source/library/Interlace/Binding/Utilities/BindableAnd.cs
C# | 123 lines | 74 code | 24 blank | 25 comment | 7 complexity | e159a6ea1cb15c04a978137bd7ebb29a MD5 | raw file
- #region Using Directives and Copyright Notice
-
- // Copyright (c) 2007-2010, Computer Consultancy Pty Ltd
- // All rights reserved.
- //
- // Redistribution and use in source and binary forms, with or without
- // modification, are permitted provided that the following conditions are met:
- // * Redistributions of source code must retain the above copyright
- // notice, this list of conditions and the following disclaimer.
- // * Redistributions in binary form must reproduce the above copyright
- // notice, this list of conditions and the following disclaimer in the
- // documentation and/or other materials provided with the distribution.
- // * Neither the name of the Computer Consultancy Pty Ltd nor the
- // names of its contributors may be used to endorse or promote products
- // derived from this software without specific prior written permission.
- //
- // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- // ARE DISCLAIMED. IN NO EVENT SHALL COMPUTER CONSULTANCY PTY LTD BE LIABLE
- // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- // LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- // OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- // DAMAGE.
-
- using System;
- using System.Collections.Generic;
- using System.Text;
-
- using Interlace.Binding.Views;
-
- #endregion
-
- namespace Interlace.Binding.Utilities
- {
- public class BindableAnd
- {
- List<BindableLogicInput> _inputs;
- Binder _binder;
-
- bool _default = true;
-
- bool _currentValue;
-
- public BindableAnd()
- {
- _inputs = new List<BindableLogicInput>();
- _currentValue = CalculatedOutput;
- _binder = new Binder(this);
- }
-
- public Binder Binder
- {
- get { return _binder; }
- }
-
- public void AddBinding(BinderViewBase view)
- {
- _binder.AddBinding("Output", view);
- }
-
- public void AddBinding(BinderViewBase view, ViewConverterBase converter)
- {
- _binder.AddBinding("Output", view, converter);
- }
-
- public BinderViewBase CreateInput()
- {
- BindableLogicInput input = new BindableLogicInput();
-
- _inputs.Add(input);
-
- input.ValueChanged += new EventHandler(input_ValueChanged);
-
- UpdateValueIfRequired();
-
- return new PropertyView(input, "Value", true, true);
- }
-
- void UpdateValueIfRequired()
- {
- if (CalculatedOutput != _currentValue)
- {
- _currentValue = CalculatedOutput;
-
- if (OutputChanged != null) OutputChanged(this, EventArgs.Empty);
- }
- }
-
- void input_ValueChanged(object sender, EventArgs e)
- {
- UpdateValueIfRequired();
- }
-
- bool CalculatedOutput
- {
- get
- {
- if (_inputs.Count == 0) return _default;
-
- foreach (BindableLogicInput input in _inputs)
- {
- if (!input.Value) return false;
- }
-
- return true;
- }
- }
-
- public event EventHandler OutputChanged;
-
- public bool Output
- {
- get
- {
- return _currentValue;
- }
- }
- }
- }