From 57765853037f546584117cd4f61abf344410f66d Mon Sep 17 00:00:00 2001
From: the_fiddler <the_fiddler@ebc5dd9b-fb1d-0410-b6f8-d24c324e9604>
Date: Sun, 27 Jan 2008 14:10:18 +0000
Subject: [PATCH] Trying to get fullscreen on X11 to hide gnome panels.

---
 Source/OpenTK/Platform/X11/X11GLNative.cs | 58 ++++++++++++++++++++---
 1 file changed, 52 insertions(+), 6 deletions(-)

diff --git a/Source/OpenTK/Platform/X11/X11GLNative.cs b/Source/OpenTK/Platform/X11/X11GLNative.cs
index 4b5613b0..3baa3868 100644
--- a/Source/OpenTK/Platform/X11/X11GLNative.cs
+++ b/Source/OpenTK/Platform/X11/X11GLNative.cs
@@ -36,6 +36,13 @@ namespace OpenTK.Platform.X11
         private DisplayMode mode = new DisplayMode();
         private X11Input driver;
 
+        // Window manager hints for fullscreen windows.
+        private const string MOTIF_WM_ATOM = "_MOTIF_WM_HINTS";
+        private const string GNOME_WM_ATOM = "_WIN_HINTS";
+        private const string KDE_WM_ATOM = "KWM_WIN_DECORATION";
+        private const string KDE_NET_WM_ATOM = "_KDE_NET_WM_WINDOW_TYPE";
+        private const string ICCM_WM_ATOM = "_NET_WM_STATE";
+
         // Number of pending events.
         private int pending = 0;
 
@@ -701,7 +708,8 @@ namespace OpenTK.Platform.X11
         {
             bool removed = false;
             if (DisableMotifDecorations()) { Debug.Print("Removed decorations through motif."); removed = true; }
-            if (DisableGnomeDecorations()) { Debug.Print("Removed decorations through gnome."); removed = true; }
+            if (DisableIccmDecorations()) { Debug.Print("Removed decorations through ICCM."); removed = true; }
+            //if (DisableGnomeDecorations()) { Debug.Print("Removed decorations through gnome."); removed = true; }
 
             if (removed)
             {
@@ -715,7 +723,7 @@ namespace OpenTK.Platform.X11
 
         bool DisableMotifDecorations()
         {
-            IntPtr atom = Functions.XInternAtom(API.DefaultDisplay, "_MOTIF_WM_HINTS", true);
+            IntPtr atom = Functions.XInternAtom(API.DefaultDisplay, MOTIF_WM_ATOM, true);
             if (atom != IntPtr.Zero)
             {
                 MotifWmHints hints = new MotifWmHints();
@@ -733,7 +741,7 @@ namespace OpenTK.Platform.X11
 
         bool DisableGnomeDecorations()
         {
-            IntPtr atom = Functions.XInternAtom(API.DefaultDisplay, "_WIN_HINTS", true);
+            IntPtr atom = Functions.XInternAtom(API.DefaultDisplay, GNOME_WM_ATOM, true);
             if (atom != IntPtr.Zero)
             {
                 IntPtr hints = IntPtr.Zero;
@@ -746,6 +754,23 @@ namespace OpenTK.Platform.X11
 
         #endregion
 
+        #region bool DisableIccmDecorations()
+
+        bool DisableIccmDecorations()
+        {
+            IntPtr atom = Functions.XInternAtom(API.DefaultDisplay, ICCM_WM_ATOM, true);
+            if (atom != IntPtr.Zero)
+            {
+                IntPtr hints = Functions.XInternAtom(API.DefaultDisplay, "_NET_WM_STATE_FULLSCREEN", true); 
+                Functions.XChangeProperty(API.DefaultDisplay, this.Handle, atom, atom, 32, PropertyMode.Replace, ref hints,
+                    Marshal.SizeOf(hints) / 4);
+                return true;
+            }
+            return false;
+        }
+
+        #endregion
+
         #endregion
 
         #region void EnableWindowDecorations()
@@ -754,7 +779,8 @@ namespace OpenTK.Platform.X11
         {
             bool activated = false;
             if (EnableMotifDecorations()) { Debug.Print("Activated decorations through motif."); activated = true; }
-            if (EnableGnomeDecorations()) { Debug.Print("Activated decorations through gnome."); activated = true; }
+            if (EnableIccmDecorations()) { Debug.Print("Activated decorations through ICCM."); activated = true; }
+            //if (EnableGnomeDecorations()) { Debug.Print("Activated decorations through gnome."); activated = true; }
 
             if (activated)
             {
@@ -768,7 +794,7 @@ namespace OpenTK.Platform.X11
 
         bool EnableMotifDecorations()
         {
-            IntPtr atom = Functions.XInternAtom(API.DefaultDisplay, "_WIN_HINTS", true);
+            IntPtr atom = Functions.XInternAtom(API.DefaultDisplay, MOTIF_WM_ATOM, true);
             if (atom != IntPtr.Zero)
             {
                 Functions.XDeleteProperty(API.DefaultDisplay, this.Handle, atom);
@@ -783,7 +809,7 @@ namespace OpenTK.Platform.X11
 
         bool EnableGnomeDecorations()
         {
-            IntPtr atom = Functions.XInternAtom(API.DefaultDisplay, "_MOTIF_WM_HINTS", true);
+            IntPtr atom = Functions.XInternAtom(API.DefaultDisplay, GNOME_WM_ATOM, true);
             if (atom != IntPtr.Zero)
             {
                 Functions.XDeleteProperty(API.DefaultDisplay, this.Handle, atom);
@@ -794,6 +820,26 @@ namespace OpenTK.Platform.X11
 
         #endregion
 
+        #region bool EnableIccmDecorations()
+
+        bool EnableIccmDecorations()
+        {
+            IntPtr atom = Functions.XInternAtom(API.DefaultDisplay, ICCM_WM_ATOM, true);
+            if (atom != IntPtr.Zero)
+            {
+                IntPtr hint = Functions.XInternAtom(API.DefaultDisplay, "_NET_WM_WINDOW_TYPE_NORMAL", true);
+                if (hint != IntPtr.Zero)
+                {
+                    Functions.XChangeProperty(API.DefaultDisplay, this.Handle, hint, /*XA_ATOM*/(IntPtr)4, 32, PropertyMode.Replace,
+                        ref hint, Marshal.SizeOf(hint) / 4);
+                }
+                return true;
+            }
+            return false;
+        }
+
+        #endregion
+
         #endregion
 
         #endregion