key util to determine mod mask for keys

2 files changed, 140 insertions, 0 deletions

diff --git a/src/FbTk/KeyUtil.cc b/src/FbTk/KeyUtil.cc
new file mode 100644
index 0000000..f0cbf18
--- /dev/null
+++ b/src/FbTk/KeyUtil.cc
@@ -0,0 +1,85 @@
+// KeyUtil.cc 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.cc,v 1.1 2003/09/06 15:46:00 fluxgen Exp $
+
+#include "KeyUtil.hh"
+#include "App.hh"
+
+#include <X11/keysym.h>
+
+#include <iostream>
+using namespace std;
+
+namespace FbTk {
+
+int KeyUtil::s_capslock_mod = 0;
+int KeyUtil::s_numlock_mod = 0;
+int KeyUtil::s_scrolllock_mod = 0;
+bool KeyUtil::s_init = false;
+
+void KeyUtil::init() {
+    cerr<<"init"<<endl;
+    Display *disp = FbTk::App::instance()->display();
+
+    XModifierKeymap *modmap = XGetModifierMapping(disp);
+
+    // mask to use for modifier
+    int mods[] = {
+        ShiftMask,
+        LockMask,
+        ControlMask,
+        Mod1Mask,
+        Mod2Mask,
+        Mod3Mask,
+        Mod4Mask,
+        Mod5Mask,
+        0
+    };
+        
+    // find modifiers and set them
+    for (int i = 0, realkey = 0; i < 8; ++i) {
+        for (int key = 0; key < modmap->max_keypermod; ++key, ++realkey) {
+
+            if (modmap->modifiermap[realkey] == 0)
+                continue;
+
+            KeySym ks = XKeycodeToKeysym(disp, modmap->modifiermap[realkey], 0);
+
+            switch (ks) {
+            case XK_Caps_Lock:
+                s_capslock_mod = mods[i];
+                break;
+            case XK_Scroll_Lock:
+                s_scrolllock_mod = mods[i];
+                break;
+            case XK_Num_Lock:
+                s_numlock_mod = mods[i];
+                break;
+            }
+        }
+    }
+
+    s_init = true;
+    XFreeModifiermap(modmap);
+}
+
+} // end namespace FbTk
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