update Drawing2d package version, crow version v1.0.1v1.0.1-beta

1 files changed, 84 insertions, 0 deletions

diff --git a/Backends/CairoBackend/src/ImageBackend.cs b/Backends/CairoBackend/src/ImageBackend.cs
new file mode 100644
index 00000000..96899dbd
--- /dev/null
+++ b/Backends/CairoBackend/src/ImageBackend.cs
@@ -0,0 +1,84 @@
+using System;
+using System.IO;
+using Drawing2D;
+using Glfw;
+
+namespace Crow.CairoBackend
+{
+	public class DefaultBackend : CairoBackendBase {
+		/// <summary>
+		/// Create a new generic backend bound to the application surface
+		/// </summary>
+		/// <param name="width">backend surface width</param>
+		/// <param name="height">backend surface height</param>
+		/// <param name="nativeWindoPointer"></param>
+		public DefaultBackend (int width, int height, IntPtr nativeWindoPointer)
+		: base (width, height, nativeWindoPointer) {
+			if (nativeWindoPointer == IntPtr.Zero) {
+				Glfw3.Init ();
+				Glfw3.WindowHint (WindowAttribute.ClientApi, 0);
+				Glfw3.WindowHint (WindowAttribute.Resizable, 1);
+				Glfw3.WindowHint (WindowAttribute.Decorated, 1);
+
+				hWin = Glfw3.CreateWindow (width, height, "win name", MonitorHandle.Zero, IntPtr.Zero);
+				if (hWin == IntPtr.Zero)
+					throw new Exception ("[GLFW3] Unable to create Window");
+			}
+			switch (Environment.OSVersion.Platform) {
+			case PlatformID.Unix:
+				IntPtr disp = Glfw3.GetX11Display ();
+				IntPtr nativeWin = Glfw3.GetX11Window (hWin);
+				Int32 scr = Glfw3.GetX11DefaultScreen (disp);
+				IntPtr visual = Glfw3.GetX11DefaultVisual (disp, scr);
+				surf = new XlibSurface (disp, nativeWin, visual, width, height);
+				break;
+			case PlatformID.Win32NT:
+			case PlatformID.Win32S:
+			case PlatformID.Win32Windows:
+				IntPtr hWin32 = Glfw3.GetWin32Window (hWin);
+				IntPtr hdc = Glfw3.GetWin32DC (hWin32);
+				surf = new Win32Surface (hdc);
+				break;
+			default:
+				throw new PlatformNotSupportedException ("Unable to create cairo image backend.");
+			}
+		}
+		/// <summary>
+		/// Create a new offscreen backend, used in perfTests
+		/// </summary>
+		/// <param name="width">backend surface width</param>
+		/// <param name="height">backend surface height</param>
+		public DefaultBackend (int width, int height)
+		: base (width, height, IntPtr.Zero) {
+			surf = new ImageSurface (Format.ARGB32, width, height);
+		}
+		public DefaultBackend (IntPtr surfaceBitmapData, int width, int height, int stride)
+		 : base (width, height, IntPtr.Zero) {
+			surf = new ImageSurface (surfaceBitmapData, Format.ARGB32, width, height, stride);
+		}
+
+		public override ISurface CreateSurface(int width, int height)
+			=> new ImageSurface (Format.ARGB32, width, height);
+		public override ISurface CreateSurface(byte[] data, int width, int height)
+			=> new ImageSurface (data, Format.ARGB32, width, height, 4 * width);
+		public override IContext PrepareUIFrame(IContext existingContext, IRegion clipping)
+		{
+			IContext ctx = base.PrepareUIFrame (existingContext, clipping);
+
+			clear (ctx);
+			ctx.PushGroup ();
+
+			return ctx;
+		}
+		public override void FlushUIFrame(IContext ctx)
+		{
+			ctx.PopGroupToSource ();
+			ctx.Paint ();
+
+			surf.Flush ();
+
+			base.FlushUIFrame (ctx);
+		}
+	}
+}
+