From 598ff7125d6b035e16bc854547846ca7b606e590 Mon Sep 17 00:00:00 2001
From: fluxgen <fluxgen>
Date: Wed, 13 Nov 2002 14:35:01 +0000
Subject: determine lock masks

---
 src/Keys.cc | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++--------
 src/Keys.hh | 10 +++++++---
 2 files changed, 59 insertions(+), 11 deletions(-)

diff --git a/src/Keys.cc b/src/Keys.cc
index 84953d9..c4185b7 100644
--- a/src/Keys.cc
+++ b/src/Keys.cc
@@ -19,7 +19,7 @@
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 // DEALINGS IN THE SOFTWARE.
 
-//$Id: Keys.cc,v 1.19 2002/08/28 20:25:15 fluxgen Exp $
+//$Id: Keys.cc,v 1.20 2002/11/13 14:34:24 fluxgen Exp $
 
 
 #include "Keys.hh"
@@ -126,9 +126,13 @@ Keys::t_actionstr Keys::m_actionlist[] = {
 	};	
 
 Keys::Keys(Display *display, const char *filename):
+m_capslock_mod(0),
+m_numlock_mod(0),
+m_scrolllock_mod(0),
 m_abortkey(0),
 m_display(display)
 {
+	determineModmap();
 	assert(display);
 	if (filename != 0)
 		load(filename);
@@ -363,35 +367,35 @@ void Keys::grabKey(unsigned int key, unsigned int mod) {
 		// Grab with numlock, capslock and scrlock	
 
 		//numlock	
-		XGrabKey(m_display, key, mod|Mod2Mask,
+		XGrabKey(m_display, key, mod|m_numlock_mod,
 			root, True,
 			GrabModeAsync, GrabModeAsync);		
 		//scrolllock
-		XGrabKey(m_display, key, mod|Mod5Mask,
+		XGrabKey(m_display, key, mod|m_scrolllock_mod,
 			root, True,
 			GrabModeAsync, GrabModeAsync);	
 		//capslock
-		XGrabKey(m_display, key, mod|LockMask,
+		XGrabKey(m_display, key, mod|m_capslock_mod,
 			root, True,
 			GrabModeAsync, GrabModeAsync);
 	
 		//capslock+numlock
-		XGrabKey(m_display, key, mod|LockMask|Mod2Mask,
+		XGrabKey(m_display, key, mod|m_capslock_mod|m_numlock_mod,
 			root, True,
 			GrabModeAsync, GrabModeAsync);
 
 		//capslock+scrolllock
-		XGrabKey(m_display, key, mod|LockMask|Mod5Mask,
+		XGrabKey(m_display, key, mod|m_capslock_mod|m_scrolllock_mod,
 			root, True,
 			GrabModeAsync, GrabModeAsync);						
 	
 		//capslock+numlock+scrolllock
-		XGrabKey(m_display, key, mod|Mod2Mask|Mod5Mask|LockMask,
+		XGrabKey(m_display, key, mod|m_capslock_mod|m_scrolllock_mod|m_numlock_mod,
 			root, True,
 			GrabModeAsync, GrabModeAsync);						
 
 		//numlock+scrollLock
-		XGrabKey(m_display, key, mod|Mod2Mask|Mod5Mask,
+		XGrabKey(m_display, key, mod|m_numlock_mod|m_scrolllock_mod,
 			root, True,
 			GrabModeAsync, GrabModeAsync);
 	
@@ -628,3 +632,43 @@ Keys::t_key::~t_key() {
 		}
 	}
 }
+
+void Keys::determineModmap() {
+	// mask to use for modifier
+	int mods[] = {
+		ShiftMask,
+		LockMask,
+		ControlMask,
+		Mod1Mask,
+		Mod2Mask,
+		Mod3Mask,
+		Mod4Mask,
+		Mod5Mask,
+		0
+	};
+	
+	XModifierKeymap *map = XGetModifierMapping(m_display);
+	// find modifiers and set them
+	for (int i=0, realkey=0; i<8; ++i) {
+		for (int key=0; key<map->max_keypermod; ++key, ++realkey) {
+
+			if (map->modifiermap[realkey] == 0)
+				continue;
+
+			KeySym ks = XKeycodeToKeysym(m_display, map->modifiermap[realkey], 0);
+
+			switch (ks) {
+			case XK_Caps_Lock:
+				m_capslock_mod = mods[i];
+			break;
+			case XK_Scroll_Lock:
+				m_scrolllock_mod = mods[i];
+			break;
+			case XK_Num_Lock:
+				m_numlock_mod = mods[i];
+			break;
+			}
+		}
+	}
+	XFreeModifiermap(map);
+}
diff --git a/src/Keys.hh b/src/Keys.hh
index 3351668..9f24fc3 100644
--- a/src/Keys.hh
+++ b/src/Keys.hh
@@ -19,7 +19,7 @@
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 // DEALINGS IN THE SOFTWARE.
 
-// $Id: Keys.hh,v 1.15 2002/08/04 15:55:13 fluxgen Exp $
+// $Id: Keys.hh,v 1.16 2002/11/13 14:35:01 fluxgen Exp $
 
 #ifndef KEYS_HH
 #define KEYS_HH
@@ -165,12 +165,16 @@ private:
 	/// debug function
 	void showKeyTree(t_key *key, unsigned int w=0);
 #endif //DEBUG
+	/// determine key modifier maps for caps-, num- and scrolllock
+	void determineModmap();
 
 	struct t_actionstr{
 		const char *string;
 		KeyAction action;
-	};	
-	
+	};
+
+	int m_capslock_mod, m_numlock_mod, m_scrolllock_mod; ///< modifiers
+		
 	static t_actionstr m_actionlist[];
 	
 	std::vector<t_key *> m_keylist;	
-- 
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