Merge improvements from CrowIDE

	modifié :         Templates/DirectoryView.template
	modifié :         Templates/Menu.template
	modifié :         Templates/MenuItem.template
	modifié :         Templates/Window.template
	modifié :         Tests/Interfaces/Divers/0.crow
	modifié :         src/CompilerServices/CompilerServices.cs
	modifié :         src/ExtensionsMethods.cs
	modifié :         src/GraphicObjects/DirectoryView.cs
	modifié :         src/GraphicObjects/GraphicObject.cs
	modifié :         src/GraphicObjects/Group.cs
	modifié :         src/GraphicObjects/TreeView.cs
	modifié :         src/GraphicObjects/Wrapper.cs
	modifié :         src/IMLReader.cs
	modifié :         src/Interface.cs
	modifié :         src/ItemTemplate.cs
	modifié :         src/LayoutingQueueItem.cs
	modifié :         src/Measure.cs
	modifié :         src/Point.cs

1 files changed, 55 insertions, 0 deletions

diff --git a/src/ExtensionsMethods.cs b/src/ExtensionsMethods.cs
index d1b951b9..2bfc36ea 100644
--- a/src/ExtensionsMethods.cs
+++ b/src/ExtensionsMethods.cs
@@ -26,6 +26,7 @@ namespace Crow
 	public static class ExtensionsMethods
 	{
 		#region Cairo extensions
+
 		public static void Rectangle(this Cairo.Context ctx, Rectangle r, double stroke = 0.0)
 		{
 			if (stroke > 0.0) {
@@ -36,6 +37,59 @@ namespace Crow
 			}else
 				ctx.Rectangle (r.X, r.Y, r.Width, r.Height);
 		}
+		public static double GetLength(this Cairo.PointD p){
+			return Math.Sqrt (Math.Pow (p.X, 2) + Math.Pow (p.Y, 2));
+		}
+		public static Cairo.PointD GetPerp(this Cairo.PointD p){
+			return new Cairo.PointD(-p.Y, p.X);
+		}
+		public static Cairo.PointD GetNormalized(this Cairo.PointD p){
+			double length = p.GetLength();
+			p.X /= length;
+			p.Y /= length;
+			return p;
+		}
+		public static Cairo.PointD Substract(this Cairo.PointD p1, Cairo.PointD p2){
+			return new Cairo.PointD(p1.X - p2.X, p1.Y - p2.Y);
+		}
+		public static Cairo.PointD Add(this Cairo.PointD p1, Cairo.PointD p2){
+			return new Cairo.PointD(p1.X + p2.X, p1.Y + p2.Y);
+		}
+		public static Cairo.PointD Multiply(this Cairo.PointD p1, double v){
+			return new Cairo.PointD(p1.X * v, p1.Y * v);
+		}
+		public static void DrawCote(this Cairo.Context ctx, Cairo.PointD p1, Cairo.PointD p2, double stroke = 1.0)
+		{
+			const double arrowWidth = 4.0;
+			const double arrowLength = 10.0;
+
+			Cairo.PointD vDir = p2.Substract(p1);
+			vDir = vDir.GetNormalized ();
+			Cairo.PointD vPerp = vDir.GetPerp ();
+
+			Cairo.PointD pA0 = p1.Add(vDir.Multiply(arrowLength));
+			Cairo.PointD pA1 = p2.Substract(vDir.Multiply(arrowLength));
+
+			Cairo.PointD vA = vPerp.Multiply (arrowWidth);
+
+			ctx.MoveTo (p1);
+			ctx.LineTo (pA0.Add (vA));
+			ctx.LineTo (pA0.Substract (vA));
+			ctx.LineTo (p1);
+
+			ctx.MoveTo (p2);
+			ctx.LineTo (pA1.Add (vA));
+			ctx.LineTo (pA1.Substract (vA));
+			ctx.LineTo (p2);
+
+			ctx.Fill ();
+
+			ctx.MoveTo (p1);
+			ctx.LineTo (p2);
+			ctx.LineWidth = stroke;
+			ctx.Stroke ();
+
+		}
 		public static void SetSourceColor(this Cairo.Context ctx, Color c)
 		{
 			ctx.SetSourceRGBA(c.R,c.G,c.B,c.A);
@@ -45,6 +99,7 @@ namespace Crow
 			grad.AddColorStop (offset, new Cairo.Color (c.R, c.G, c.B, c.A));
 		}
 		#endregion
+
 		public static void Raise(this EventHandler handler, object sender, EventArgs e)
 		{
 			if(handler != null)