From 9a1f823bcae2852b8797cfdcb86bbc74fa8e390d Mon Sep 17 00:00:00 2001
From: Ethan Lee <flibitijibibo@gmail.com>
Date: Sat, 18 Oct 2014 12:50:39 -0400
Subject: [PATCH] 2.0.4 GUI backend additions

---
 src/SDL2.cs | 48 +++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 47 insertions(+), 1 deletion(-)

diff --git a/src/SDL2.cs b/src/SDL2.cs
index ed5c14a..8c833bb 100644
--- a/src/SDL2.cs
+++ b/src/SDL2.cs
@@ -1003,7 +1003,26 @@ namespace SDL2
 			SDL_WINDOW_FULLSCREEN_DESKTOP =
 				(SDL_WINDOW_FULLSCREEN | 0x00001000),
 			SDL_WINDOW_FOREIGN =		0x00000800,
-			SDL_WINDOW_ALLOW_HIGHDPI =	0x00002000	/* Only available in 2.0.1 */
+			SDL_WINDOW_ALLOW_HIGHDPI =	0x00002000,	/* Only available in 2.0.1 */
+			SDL_WINDOW_MOUSE_CAPTURE =	0x00004000,	/* Only available in 2.0.4 */
+		}
+
+		/// <summary>
+		/// Possible return values from the SDL_HitTest callback.
+		/// This is only available in 2.0.4.
+		/// </summary>
+		public enum SDL_HitTestResult
+		{
+			SDL_HITTEST_NORMAL,		/* Region is normal. No special properties. */
+			SDL_HITTEST_DRAGGABLE,		/* Region can drag entire window. */
+			SDL_HITTEST_RESIZE_TOPLEFT,
+			SDL_HITTEST_RESIZE_TOP,
+			SDL_HITTEST_RESIZE_TOPRIGHT,
+			SDL_HITTEST_RESIZE_RIGHT,
+			SDL_HITTEST_RESIZE_BOTTOMRIGHT,
+			SDL_HITTEST_RESIZE_BOTTOM,
+			SDL_HITTEST_RESIZE_BOTTOMLEFT,
+			SDL_HITTEST_RESIZE_LEFT
 		}
 
 		public const int SDL_WINDOWPOS_UNDEFINED_MASK =	0x1FFF0000;
@@ -1044,6 +1063,10 @@ namespace SDL2
 			public IntPtr driverdata; // void*
 		}
 
+		/* win refers to an SDL_Window*, area to a cosnt SDL_Point*, data to a void* */
+		/* Only available in 2.0.4 */
+		public delegate SDL_HitTestResult SDL_HitTest(IntPtr win, IntPtr area, IntPtr data);
+
 		/// <summary>
 		/// Use this function to create a window with the specified position, dimensions, and flags.
 		/// </summary>
@@ -1620,6 +1643,15 @@ namespace SDL2
 		[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
 		public static extern void SDL_VideoQuit();
 
+		/* window refers to an SDL_Window*, callback_data to a void* */
+		/* Only available in 2.0.4 */
+		[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
+		public static extern int SDL_SetWindowHitTest(
+			IntPtr window,
+			SDL_HitTest callback,
+			IntPtr callback_data
+		);
+
 		#endregion
 
 		#region SDL_render.h
@@ -2651,6 +2683,10 @@ namespace SDL2
 			public int h;
 		}
 
+		/* Only available in 2.0.4 */
+		[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
+		public static extern SDL_bool SDL_PointInRect(ref SDL_Point p, ref SDL_Rect r);
+
 		[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
 		public static extern SDL_bool SDL_EnclosePoints(
 			[In()] [MarshalAs(UnmanagedType.LPArray, ArraySubType = UnmanagedType.Struct, SizeParamIndex = 1)]
@@ -4394,20 +4430,24 @@ namespace SDL2
 		public static extern UInt32 SDL_GetMouseState(IntPtr x, IntPtr y);
 
 		/* Get the current state of the mouse, in relation to the desktop */
+		/* Only available in 2.0.4 */
 		[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
 		public static extern UInt32 SDL_GetGlobalMouseState(out int x, out int y);
 
 		/* Get the current state of the mouse, in relation to the desktop */
+		/* Only available in 2.0.4 */
 		/* This overload allows for passing NULL to x */
 		[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
 		public static extern UInt32 SDL_GetGlobalMouseState(IntPtr x, out int y);
 
 		/* Get the current state of the mouse, in relation to the desktop */
+		/* Only available in 2.0.4 */
 		/* This overload allows for passing NULL to y */
 		[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
 		public static extern UInt32 SDL_GetGlobalMouseState(out int x, IntPtr y);
 
 		/* Get the current state of the mouse, in relation to the desktop */
+		/* Only available in 2.0.4 */
 		/* This overload allows for passing NULL to both x and y */
 		[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
 		public static extern UInt32 SDL_GetGlobalMouseState(IntPtr x, IntPtr y);
@@ -4422,6 +4462,7 @@ namespace SDL2
 		public static extern void SDL_WarpMouseInWindow(IntPtr window, int x, int y);
 
 		/* Set the mouse cursor's position in global screen space */
+		/* Only available in 2.0.4 */
 		[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
 		public static extern void SDL_WarpMouseGlobal(int x, int y);
 
@@ -4429,6 +4470,11 @@ namespace SDL2
 		[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
 		public static extern int SDL_SetRelativeMouseMode(SDL_bool enabled);
 
+		/* Capture the mouse, to track input outside an SDL window */
+		/* Only available in 2.0.4 */
+		[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
+		public static extern int SDL_CaptureMouse(SDL_bool enabled);
+
 		/* Query if the relative mouse mode is enabled */
 		[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
 		public static extern SDL_bool SDL_GetRelativeMouseMode();