1 files changed, 136 insertions, 0 deletions
diff --git a/main/src/core/MonoDevelop.Ide/MonoDevelop.Components/HelperMethods.cs b/main/src/core/MonoDevelop.Ide/MonoDevelop.Components/HelperMethods.cs
new file mode 100644
index 0000000000..5b758e5a50
--- /dev/null
+++ b/main/src/core/MonoDevelop.Ide/MonoDevelop.Components/HelperMethods.cs
@@ -0,0 +1,136 @@
+// HelperMethods.cs
+// 
+// Cut & paste from PangoCairoHelper.
+//
+// Author:
+//   Aaron Bockover <abockover@novell.com>
+//   Mike Krüger <mkrueger@novell.com>
+//
+// Copyright (c) 2008 Novell, Inc (http://www.novell.com)
+//
+// 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.Linq;
+using System.Runtime.InteropServices;
+using System.Collections.Generic;
+
+namespace MonoDevelop.Components
+{
+	public static class HelperMethods
+	{
+		[DllImport(PangoUtil.LIBPANGOCAIRO, CallingConvention=CallingConvention.Cdecl)]
+		static extern void pango_cairo_show_layout (IntPtr cr, IntPtr layout);
+
+		public static void ShowLayout (this Cairo.Context cr, Pango.Layout layout)
+		{
+			pango_cairo_show_layout (cr == null ? IntPtr.Zero : cr.Handle, layout == null ? IntPtr.Zero : layout.Handle);
+		}
+
+		[DllImport(PangoUtil.LIBPANGOCAIRO, CallingConvention=CallingConvention.Cdecl)]
+		static extern IntPtr pango_cairo_create_layout (IntPtr cr);
+
+		public static Pango.Layout CreateLayout (this Cairo.Context cr)
+		{
+			IntPtr raw_ret = pango_cairo_create_layout (cr == null ? IntPtr.Zero : cr.Handle);
+			return GLib.Object.GetObject (raw_ret) as Pango.Layout;
+		}
+
+		[DllImport(PangoUtil.LIBPANGOCAIRO, CallingConvention=CallingConvention.Cdecl)]
+		static extern void pango_cairo_layout_path (IntPtr cr, IntPtr layout);
+
+		public static void LayoutPath (this Cairo.Context cr, Pango.Layout layout)
+		{
+			pango_cairo_layout_path (cr == null ? IntPtr.Zero : cr.Handle, layout == null ? IntPtr.Zero : layout.Handle);
+		}
+
+		[DllImport(PangoUtil.LIBPANGOCAIRO, CallingConvention=CallingConvention.Cdecl)]
+		static extern void pango_cairo_context_set_resolution (IntPtr pango_context, double dpi);
+
+		public static void ContextSetResolution (this Pango.Context context, double dpi)
+		{
+			pango_cairo_context_set_resolution (context == null ? IntPtr.Zero : context.Handle, dpi);
+		}
+
+		[DllImport(PangoUtil.LIBPANGOCAIRO, CallingConvention=CallingConvention.Cdecl)]
+		static extern IntPtr pango_layout_get_context (IntPtr layout);
+
+		public static string GetColorString (Gdk.Color color)
+		{
+			return string.Format ("#{0:X02}{1:X02}{2:X02}", color.Red / 256, color.Green / 256, color.Blue / 256);
+		}
+
+		public static Pango.Context LayoutGetContext (this Pango.Layout layout)
+		{
+			IntPtr handle = pango_layout_get_context (layout.Handle);
+			return handle.Equals (IntPtr.Zero) ? null : GLib.Object.GetObject (handle) as Pango.Context;
+		}
+		
+		public static void DrawLine (this Cairo.Context cr, Cairo.Color color, double x1, double y1, double x2, double y2)
+		{
+			cr.SetSourceColor (color);
+			cr.MoveTo (x1, y1);
+			cr.LineTo (x2, y2);
+			cr.Stroke ();
+		}
+		
+		public static void Line (this Cairo.Context cr, double x1, double y1, double x2, double y2)
+		{
+			cr.MoveTo (x1, y1);
+			cr.LineTo (x2, y2);
+		}
+		
+		public static void SharpLineX (this Cairo.Context cr, double x1, double y1, double x2, double y2)
+		{
+			cr.MoveTo (x1 + 0.5, y1);
+			cr.LineTo (x2 + 0.5, y2);
+		}
+		
+		public static void SharpLineY (this Cairo.Context cr, double x1, double y1, double x2, double y2)
+		{
+			cr.MoveTo (x1, y1 + 0.5);
+			cr.LineTo (x2, y2 + 0.5);
+		}
+
+		public static void SetSourceColor (this Cairo.Context cr, Cairo.Color color)
+		{
+			cr.SetSourceRGBA (color.R, color.G, color.B, color.A);
+		}
+
+		//this is needed for building against old Mono.Cairo versions
+		[Obsolete]
+		public static void SetSource (this Cairo.Context cr, Cairo.Pattern pattern)
+		{
+			cr.Pattern = pattern;
+		}
+
+		[Obsolete]
+		public static Cairo.Surface GetTarget (this Cairo.Context cr)
+		{
+			return cr.Target;
+		}
+
+		[Obsolete]
+		public static void Dispose (this Cairo.Context cr)
+		{
+			((IDisposable)cr).Dispose ();
+		}
+	}
+}