1 files changed, 141 insertions, 0 deletions
diff --git a/src/GraphicObjects/Base/Expandable.cs b/src/GraphicObjects/Base/Expandable.cs
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+//
+// Expandable.cs
+//
+// Author:
+//       Jean-Philippe Bruyère <jp.bruyere@hotmail.com>
+//
+// Copyright (c) 2013-2017 Jean-Philippe Bruyère
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+using System;
+using System.ComponentModel;
+using System.Xml.Serialization;
+
+namespace Crow
+{
+    public class Expandable : TemplatedContainer
+    {
+		#region CTOR
+		public Expandable() : base()
+		{
+		}
+		#endregion
+
+		#region Private fields
+		bool _isExpanded;
+		string image;
+		Container _contentContainer;
+		#endregion
+
+		#region Event Handlers
+		public event EventHandler Expand;
+		public event EventHandler Collapse;
+		#endregion
+
+		public BooleanTestOnInstance GetIsExpandable;
+
+		public void onClickForExpand (object sender, MouseButtonEventArgs e)
+		{
+			IsExpanded = !IsExpanded;
+		}
+
+		public override GraphicObject Content {
+			get {
+				return _contentContainer == null ? null : _contentContainer.Child;
+			}
+			set {
+				_contentContainer.SetChild(value);
+				NotifyValueChanged ("HasContent", HasContent);
+			}
+		}
+		//TODO: move loadTemplate and ResolveBinding in TemplatedContainer
+		protected override void loadTemplate(GraphicObject template = null)
+		{
+			base.loadTemplate (template);
+
+			_contentContainer = this.child.FindByName ("Content") as Container;
+		}
+
+		#region Public properties
+		[XmlAttributeAttribute][DefaultValue("#Crow.Images.Icons.expandable.svg")]
+		public string Image {
+			get { return image; }
+			set {
+				if (image == value)
+					return;
+				image = value;
+				NotifyValueChanged ("Image", image);
+			}
+		}
+		[XmlAttributeAttribute][DefaultValue(false)]
+        public bool IsExpanded
+        {
+			get { return _isExpanded; }
+            set
+            {
+				if (value == _isExpanded)
+					return;
+
+				_isExpanded = value;
+
+				bool isExp = IsExpandable;
+				NotifyValueChanged ("IsExpandable", isExp);
+				if (!(HasContent & isExp))
+					_isExpanded = false;
+
+				NotifyValueChanged ("IsExpanded", _isExpanded);
+
+				if (_isExpanded)
+					onExpand (this, null);
+				else
+					onCollapse (this, null);
+            }
+        }
+		[XmlIgnore]public bool HasContent {
+			get { return _contentContainer == null ? false : _contentContainer.Child != null; }
+		}
+		[XmlIgnore]public bool IsExpandable {
+			get {
+				try {
+					return GetIsExpandable == null ? true : GetIsExpandable (this);
+				} catch (Exception ex) {
+					System.Diagnostics.Debug.WriteLine ("Not Expandable error: " + ex.ToString ());
+					return false;
+				}
+			}
+		}
+		#endregion
+
+		public virtual void onExpand(object sender, EventArgs e)
+		{
+			if (_contentContainer != null)
+				_contentContainer.Visible = true;
+
+			Expand.Raise (this, e);
+		}
+		public virtual void onCollapse(object sender, EventArgs e)
+		{
+			if (_contentContainer != null)
+				_contentContainer.Visible = false;
+
+			Collapse.Raise (this, e);
+		}
+	}
+}