From 670a2a2573deae440a109cc009bec9c022dfa505 Mon Sep 17 00:00:00 2001
From: Nelson Carrillo <ncarrillo@harbortouch.com>
Date: Sun, 13 Sep 2015 15:44:34 -0400
Subject: [PATCH 1/2] Added support for loading Bitmaps from a Stream to the
 Gtk/Cairo platform

---
 src/Gtk/Perspex.Cairo/CairoPlatform.cs        | 11 ++++++----
 src/Gtk/Perspex.Cairo/Media/DrawingContext.cs |  2 +-
 .../Perspex.Cairo/Media/Imaging/BitmapImpl.cs | 12 ++++++-----
 .../Media/Imaging/RenderTargetBitmapImpl.cs   | 21 ++++++++++++++++---
 4 files changed, 33 insertions(+), 13 deletions(-)

diff --git a/src/Gtk/Perspex.Cairo/CairoPlatform.cs b/src/Gtk/Perspex.Cairo/CairoPlatform.cs
index 6105ef3046..5ddfe1eab0 100644
--- a/src/Gtk/Perspex.Cairo/CairoPlatform.cs
+++ b/src/Gtk/Perspex.Cairo/CairoPlatform.cs
@@ -25,7 +25,7 @@ namespace Perspex.Cairo
 
         public IBitmapImpl CreateBitmap(int width, int height)
         {
-            return new BitmapImpl(new ImageSurface(Format.Argb32, width, height));
+            return new BitmapImpl(new Gdk.Pixbuf(Gdk.Colorspace.Rgb, true, 32, width, height));
         }
 
         public IFormattedTextImpl CreateFormattedText(
@@ -57,13 +57,16 @@ namespace Perspex.Cairo
 
         public IBitmapImpl LoadBitmap(string fileName)
         {
-            ImageSurface result = new ImageSurface(fileName);
-            return new BitmapImpl(result);
+            var pixbuf = new Gdk.Pixbuf(fileName);
+
+            return new BitmapImpl(pixbuf);
         }
 
         public IBitmapImpl LoadBitmap(Stream stream)
         {
-            throw new NotImplementedException();
+            var pixbuf = new Gdk.Pixbuf(stream);
+
+            return new BitmapImpl(pixbuf);
         }
 
         private Pango.Context GetPangoContext(IPlatformHandle handle)
diff --git a/src/Gtk/Perspex.Cairo/Media/DrawingContext.cs b/src/Gtk/Perspex.Cairo/Media/DrawingContext.cs
index c01d1f1ac3..4c99590cb6 100644
--- a/src/Gtk/Perspex.Cairo/Media/DrawingContext.cs
+++ b/src/Gtk/Perspex.Cairo/Media/DrawingContext.cs
@@ -63,7 +63,7 @@ namespace Perspex.Cairo.Media
 
             _context.Save();
             _context.Scale(scaleX, scaleY);
-            _context.SetSourceSurface(impl.Surface, (int)sourceRect.X, (int)sourceRect.Y);
+            Gdk.CairoHelper.SetSourcePixbuf(_context, impl.Surface, (int)sourceRect.X, (int)sourceRect.Y);
             _context.Rectangle(sourceRect.ToCairo());
             _context.Fill();
             _context.Restore();
diff --git a/src/Gtk/Perspex.Cairo/Media/Imaging/BitmapImpl.cs b/src/Gtk/Perspex.Cairo/Media/Imaging/BitmapImpl.cs
index 5748790626..4abecba6c6 100644
--- a/src/Gtk/Perspex.Cairo/Media/Imaging/BitmapImpl.cs
+++ b/src/Gtk/Perspex.Cairo/Media/Imaging/BitmapImpl.cs
@@ -10,22 +10,24 @@ namespace Perspex.Cairo.Media.Imaging
 
     public class BitmapImpl : IBitmapImpl
     {
-        public BitmapImpl(Cairo.ImageSurface surface)
+        public BitmapImpl(Gdk.Pixbuf pixbuf)
         {
-            Surface = surface;
+            Surface = pixbuf;
         }
 
         public int PixelWidth => Surface.Width;
 
         public int PixelHeight => Surface.Height;
 
-        public Cairo.ImageSurface Surface
+        public Gdk.Pixbuf Surface
         {
-            get; }
+            get;
+        }
 
         public void Save(string fileName)
         {
-            Surface.WriteToPng(fileName);
+            // TODO: Test
+            Surface.Save(fileName, "png");
         }
     }
 }
diff --git a/src/Gtk/Perspex.Cairo/Media/Imaging/RenderTargetBitmapImpl.cs b/src/Gtk/Perspex.Cairo/Media/Imaging/RenderTargetBitmapImpl.cs
index 51cdc645ef..d3e0a049f4 100644
--- a/src/Gtk/Perspex.Cairo/Media/Imaging/RenderTargetBitmapImpl.cs
+++ b/src/Gtk/Perspex.Cairo/Media/Imaging/RenderTargetBitmapImpl.cs
@@ -8,23 +8,38 @@ namespace Perspex.Cairo.Media.Imaging
 {
     using Cairo = global::Cairo;
 
-    public class RenderTargetBitmapImpl : BitmapImpl, IRenderTargetBitmapImpl
+    public class RenderTargetBitmapImpl : IRenderTargetBitmapImpl
     {
         public RenderTargetBitmapImpl(
-            Cairo.ImageSurface surface)
-            : base(surface)
+           Cairo.ImageSurface surface)
         {
+            
         }
 
+        public int PixelWidth => Surface.Width;
+
+        public int PixelHeight => Surface.Height;
+
         public void Dispose()
         {
             Surface.Dispose();
         }
 
+
+        public Cairo.ImageSurface Surface
+        {
+            get;
+        }
+
         public void Render(IVisual visual)
         {
             Renderer renderer = new Renderer(Surface);
             renderer.Render(visual, new PlatformHandle(IntPtr.Zero, "RTB"));
         }
+
+        public void Save(string fileName)
+        {
+            throw new NotImplementedException();
+        }
     }
 }
\ No newline at end of file

From a1785ea43f1f5b21c5af5d29f74767c735fb895a Mon Sep 17 00:00:00 2001
From: Nelson Carrillo <ncarrillo@harbortouch.com>
Date: Sun, 13 Sep 2015 15:46:07 -0400
Subject: [PATCH 2/2] Fixing broken RTB

---
 src/Gtk/Perspex.Cairo/Media/Imaging/RenderTargetBitmapImpl.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Gtk/Perspex.Cairo/Media/Imaging/RenderTargetBitmapImpl.cs b/src/Gtk/Perspex.Cairo/Media/Imaging/RenderTargetBitmapImpl.cs
index d3e0a049f4..8c017d9cfd 100644
--- a/src/Gtk/Perspex.Cairo/Media/Imaging/RenderTargetBitmapImpl.cs
+++ b/src/Gtk/Perspex.Cairo/Media/Imaging/RenderTargetBitmapImpl.cs
@@ -39,7 +39,7 @@ namespace Perspex.Cairo.Media.Imaging
 
         public void Save(string fileName)
         {
-            throw new NotImplementedException();
+            Surface.WriteToPng(fileName);
         }
     }
 }
\ No newline at end of file