Imported Upstream version 4.2.0.179

Former-commit-id: 0a113cb3a6feb7873f632839b1307cc6033cd595

mcs/class/System.Windows.Forms/System.Windows.Forms.Design/ComponentEditorPage.cs

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+// 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.
+//
+// Copyright (c) 2004 Novell, Inc.
+//
+// Authors:
+//	Andreas Nahr	(ClassDevelopment@A-SoftTech.com)
+//
+
+using System.ComponentModel;
+using System.Drawing;
+using System.Runtime.InteropServices;
+
+namespace System.Windows.Forms.Design
+{
+	[ClassInterfaceAttribute (ClassInterfaceType.AutoDispatch)]
+	[ComVisible (true)]
+	public abstract class ComponentEditorPage : Panel
+	{
+		private bool commitOnDeactivate = false;
+		private IComponent component;
+		private bool firstActivate = true;
+		private Icon icon;
+		private int loading = 0;
+		private bool loadRequired = false;
+		private IComponentEditorPageSite pageSite;
+
+		public ComponentEditorPage ()
+		{
+		}
+
+		[Browsable (false)]
+		[EditorBrowsable (EditorBrowsableState.Never)]
+		[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
+		new public virtual bool AutoSize {
+			get { return base.AutoSize; }
+			set { base.AutoSize = value; }
+		}
+
+		public bool CommitOnDeactivate
+		{
+			get { return commitOnDeactivate; }
+			set { commitOnDeactivate = value; }
+		}
+
+		protected IComponent Component {
+			get { return component; }
+			set { component = value; }
+		}
+
+		[MonoTODO ("Find out what this does.")]
+		protected override CreateParams CreateParams {
+			get {
+				throw new NotImplementedException ();
+			}
+		}
+
+		protected bool FirstActivate {
+			get { return firstActivate; }
+			set { firstActivate = value; }
+		}
+
+		public Icon Icon {
+			get { return icon; }
+			set { icon = value; }
+		}
+
+		protected int Loading {
+			get { return loading; }
+			set { loading = value; }
+		}
+
+		protected bool LoadRequired {
+			get { return loadRequired; }
+			set { loadRequired = value; }
+		}
+
+		protected IComponentEditorPageSite PageSite {
+			get { return pageSite; }
+			set { pageSite = value; }
+		}
+
+		public virtual string Title {
+			get { return base.Text; }
+		}
+
+		public virtual void Activate ()
+		{
+			Visible = true;
+			firstActivate = false;
+			if (loadRequired) {
+				EnterLoadingMode ();
+				LoadComponent ();
+				ExitLoadingMode ();
+			}
+		}
+
+		public virtual void ApplyChanges ()
+		{
+			SaveComponent ();
+		}
+
+		public virtual void Deactivate ()
+		{
+			Visible = false;
+		}
+
+		protected void EnterLoadingMode ()
+		{
+			loading++;
+		}
+
+		protected void ExitLoadingMode ()
+		{
+			loading--;
+		}
+
+		public virtual Control GetControl ()
+		{
+			return this;
+		}
+
+		protected IComponent GetSelectedComponent ()
+		{
+			return component;
+		}
+
+		protected bool IsFirstActivate ()
+		{
+			return firstActivate;
+		}
+
+		protected bool IsLoading ()
+		{
+			return (loading != 0);
+		}
+
+		public virtual bool IsPageMessage (ref Message msg)
+		{
+			return PreProcessMessage (ref msg);
+		}
+
+		protected abstract void LoadComponent ();
+
+		[MonoTODO ("Find out what this does.")]
+		public virtual void OnApplyComplete ()
+		{
+		}
+
+		protected virtual void ReloadComponent ()
+		{
+			loadRequired = true;
+		}
+
+		protected abstract void SaveComponent ();
+
+		public virtual void SetComponent (IComponent component)
+		{
+			this.component = component;
+			ReloadComponent ();
+		}
+
+		[MonoTODO ("Find out what this does.")]
+		protected virtual void SetDirty ()
+		{
+		}
+
+		public virtual void SetSite (IComponentEditorPageSite site)
+		{
+			pageSite = site;
+			pageSite.GetControl ().Controls.Add (this);
+
+		}
+
+		public virtual void ShowHelp ()
+		{
+		}
+
+		public virtual bool SupportsHelp ()
+		{
+			return false;
+		}
+
+		#region Public Events
+		[Browsable (false)]
+		[EditorBrowsable (EditorBrowsableState.Never)]
+		public new event EventHandler AutoSizeChanged {
+			add { base.AutoSizeChanged += value; }
+			remove { base.AutoSizeChanged -= value; }
+		}
+		#endregion
+	}
+}