split graphic objects dirRearangeDirs

1 files changed, 207 insertions, 0 deletions

diff --git a/src/GraphicObjects/Base/PrivateContainer.cs b/src/GraphicObjects/Base/PrivateContainer.cs
new file mode 100644
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+++ b/src/GraphicObjects/Base/PrivateContainer.cs
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+//
+// PrivateContainer.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.Xml.Serialization;
+using System.ComponentModel;
+using Cairo;
+
+namespace Crow
+{
+	/// <summary>
+	/// Implement drawing and layouting for a single child, but
+	/// does not implement IXmlSerialisation to allow reuse of container
+	/// behaviour for widgets that have other xml hierarchy: example
+	/// TemplatedControl may have 3 children (template,templateItem,content) but
+	/// behave exactely as a container for layouting and drawing
+	/// </summary>
+	public class PrivateContainer : GraphicObject
+	{
+		#region CTOR
+		public PrivateContainer()
+			: base()
+		{
+		}
+		#endregion
+
+		protected GraphicObject child;
+
+		internal virtual void SetChild(GraphicObject _child)
+		{
+
+			if (child != null) {
+				contentSize = new Size (0, 0);
+				child.LayoutChanged -= OnChildLayoutChanges;
+				child.Parent = null;
+				this.RegisterForGraphicUpdate ();
+			}
+
+			child = _child as GraphicObject;
+
+			if (child != null) {
+				child.Parent = this;
+				child.LayoutChanged += OnChildLayoutChanges;
+				contentSize = child.Slot.Size;
+				child.RegisteredLayoutings = LayoutingType.None;
+				child.RegisterForLayouting (LayoutingType.Sizing);
+			}
+		}
+
+		#region GraphicObject Overrides
+
+		public override GraphicObject FindByName (string nameToFind)
+		{
+			if (Name == nameToFind)
+				return this;
+
+			return child == null ? null : child.FindByName (nameToFind);
+		}
+		public override bool Contains (GraphicObject goToFind)
+		{
+			return child == goToFind ? true : 
+				child == null ? false : child.Contains(goToFind);
+		}
+		public override void OnDataSourceChanged (object sender, DataSourceChangeEventArgs e)
+		{
+			base.OnDataSourceChanged (this, e);
+			if (child != null)
+			if (child.localDataSourceIsNull & child.localLogicalParentIsNull)
+					child.OnDataSourceChanged (sender, e);
+		}
+		public override bool UpdateLayout (LayoutingType layoutType)
+		{
+			if (child != null) {
+				//force sizing to fit if sizing on children and child has stretched size
+				switch (layoutType) {
+				case LayoutingType.Width:
+					if (Width == Measure.Fit && child.Width.Units == Unit.Percent)
+						child.Width = Measure.Fit;
+					break;
+				case LayoutingType.Height:
+					if (Height == Measure.Fit && child.Height.Units == Unit.Percent)
+						child.Height = Measure.Fit;
+					break;
+				}
+			}
+			return base.UpdateLayout (layoutType);
+		}
+		public override void OnLayoutChanges (LayoutingType layoutType)
+		{
+			base.OnLayoutChanges (layoutType);
+
+			if (child == null)
+				return;
+			
+			LayoutingType ltChild = LayoutingType.None;
+
+			if (layoutType == LayoutingType.Width) {
+				if (child.Width.Units == Unit.Percent) {
+					ltChild |= LayoutingType.Width;
+					if (child.Width.Value < 100 && child.Left == 0)
+						ltChild |= LayoutingType.X;
+				} else if (child.Left == 0)
+					ltChild |= LayoutingType.X;
+			} else if (layoutType == LayoutingType.Height) {
+				if (child.Height.Units == Unit.Percent) {
+					ltChild |= LayoutingType.Height;
+					if (child.Height.Value < 100 && child.Top == 0)
+						ltChild |= LayoutingType.Y;
+				} else if (child.Top == 0)
+						ltChild |= LayoutingType.Y;
+			}
+			if (ltChild == LayoutingType.None)
+				return;
+			child.RegisterForLayouting (ltChild);
+		}
+		public virtual void OnChildLayoutChanges (object sender, LayoutingEventArgs arg)
+		{			
+			GraphicObject g = sender as GraphicObject;
+
+			if (arg.LayoutType == LayoutingType.Width) {
+				if (Width != Measure.Fit)
+					return;
+				contentSize.Width = g.Slot.Width;
+				this.RegisterForLayouting (LayoutingType.Width);
+			}else if (arg.LayoutType == LayoutingType.Height){
+				if (Height != Measure.Fit)
+					return;
+				contentSize.Height = g.Slot.Height;
+				this.RegisterForLayouting (LayoutingType.Height);
+			}
+		}
+		protected override void onDraw (Context gr)
+		{
+			base.onDraw (gr);
+
+			gr.Save ();
+
+			if (ClipToClientRect) {
+				//clip to client zone
+				CairoHelpers.CairoRectangle (gr, ClientRectangle, CornerRadius);
+				gr.Clip ();
+			}
+
+			if (child != null) {
+				if (child.Visible)
+					child.Paint (ref gr);
+			}
+			gr.Restore ();
+		}
+		protected override void UpdateCache (Context ctx)
+		{
+			Rectangle rb = Slot + Parent.ClientRectangle.Position;
+
+			using (ImageSurface cache = new ImageSurface (bmp, Format.Argb32, Slot.Width, Slot.Height, 4 * Slot.Width)) {
+				Context gr = new Context (cache);
+
+				if (Clipping.count > 0) {
+					Clipping.clearAndClip (gr);
+
+					onDraw (gr);
+				}
+					
+				gr.Dispose ();
+
+				ctx.SetSourceSurface (cache, rb.X, rb.Y);
+				ctx.Paint ();
+			}
+			Clipping.Reset();
+		}
+		#endregion
+
+		#region Mouse handling
+		public override void checkHoverWidget (MouseMoveEventArgs e)
+		{
+			base.checkHoverWidget (e);
+			if (child != null) 
+				if (child.MouseIsIn (e.Position)) 
+					child.checkHoverWidget (e);
+		}
+		#endregion
+
+	}
+}
+