key util to determine mod mask for keys

1 files changed, 55 insertions, 0 deletions

diff --git a/src/FbTk/KeyUtil.hh b/src/FbTk/KeyUtil.hh
new file mode 100644
index 0000000..9e872d6
--- /dev/null
+++ b/src/FbTk/KeyUtil.hh
@@ -0,0 +1,55 @@
+// KeyUtil.hh for FbTk
+// Copyright (c) 2003 Henrik Kinnunen (fluxgen at users.sourceforge.net)
+//
+// 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.
+
+// $Id: KeyUtil.hh,v 1.1 2003/09/06 15:46:00 fluxgen Exp $
+
+#ifndef FBTK_KEYUTIL_HH
+#define FBTK_KEYUTIL_HH
+
+namespace FbTk {
+
+class KeyUtil {
+public:
+    /** 
+        Strip out modifiers we want to ignore
+        @return the cleaned state number
+    */
+    static unsigned int cleanMods(unsigned int mods) {
+        if (!s_init)
+            init();
+        //remove numlock, capslock and scrolllock
+         return mods & (~s_capslock_mod & ~s_numlock_mod & ~s_scrolllock_mod);
+    }
+
+    static int capslockMod() { if (!s_init) init(); return s_capslock_mod; }
+    static int numlockMod() { if (!s_init) init(); return s_numlock_mod; }
+    static int scrolllockMod() { if (!s_init) init(); return s_scrolllock_mod; }
+    /// so one can force a reinit of modifiers
+    static void init();    
+private:
+    static int s_capslock_mod, s_numlock_mod, s_scrolllock_mod; ///< modifiers
+    static bool s_init;
+};
+
+} // end namespace FbTk
+
+
+#endif // FBTK_KEYUTIL_HH