nicer translate()

[chaz/openbox] / src / bindings.cc

diff --git a/src/bindings.cc b/src/bindings.cc
index 73c11b0b8c69b4bf74f2519c3b98bf4d2eb8e893..999b4ad801f47a48db5f9042de05662929fdb66d 100644 (file)
--- a/src/bindings.cc
+++ b/src/bindings.cc
@@ -38,107 +38,97 @@ void OBBindings::display()
 }
 
 
+static bool modvalue(const std::string &mod, unsigned int *val)
+{
+  if (mod == "C") {           // control
+    *val |= ControlMask;
+  } else if (mod == "S") {    // shift
+    *val |= ShiftMask;
+  } else if (mod == "A" ||    // alt/mod1
+             mod == "M" ||
+             mod == "M1" ||
+             mod == "Mod1") {
+    *val |= Mod1Mask;
+  } else if (mod == "M2" ||   // mod2
+             mod == "Mod2") {
+    *val |= Mod2Mask;
+  } else if (mod == "M3" ||   // mod3
+             mod == "Mod3") {
+    *val |= Mod3Mask;
+  } else if (mod == "W" ||    // windows/mod4
+             mod == "M4" ||
+             mod == "Mod4") {
+    *val |= Mod4Mask;
+  } else if (mod == "M5" ||   // mod5
+             mod == "Mod5") {
+    *val |= Mod5Mask;
+  } else {                    // invalid
+    return false;
+  }
+  return true;
+}
 
 bool OBBindings::translate(const std::string &str, Binding &b)
 {
-  unsigned int mods = 0;
-  
   // parse out the base key name
   std::string::size_type keybegin = str.find_last_of('-');
   keybegin = (keybegin == std::string::npos) ? 0 : keybegin + 1;
   std::string key(str, keybegin);
 
-  // XXX: get some modifiers up in the hizzie
   // parse out the requested modifier keys
+  unsigned int modval = 0;
   std::string::size_type begin = 0, end;
   while (begin != keybegin) {
     end = str.find_first_of('-', begin);
 
     std::string mod(str, begin, end-begin);
-
-    if (mod == "C") {           // control
-      mods |= ControlMask;
-    } else if (mod == "S") {    // shift
-      mods |= ShiftMask;
-    } else if (mod == "A" ||    // alt/mod1
-               mod == "M" ||
-               mod == "M1" ||
-               mod == "Mod1") {
-      mods |= Mod1Mask;
-    } else if (mod == "M2" ||   // mod2
-               mod == "Mod2") {
-      mods |= Mod2Mask;
-    } else if (mod == "M3" ||   // mod3
-               mod == "Mod3") {
-      mods |= Mod3Mask;
-    } else if (mod == "W" ||    // windows/mod4
-               mod == "M4" ||
-               mod == "Mod4") {
-      mods |= Mod4Mask;
-    } else if (mod == "M5" ||   // mod5
-               mod == "Mod5") {
-      mods |= Mod5Mask;
-    } else {                    // invalid
+    if (!modvalue(mod, &modval)) {
       printf(_("Invalid modifier element in key binding: %s\n"), mod.c_str());
       return false;
     }
+    
     begin = end + 1;
   }
-  
+
+  // set the binding
   KeySym sym = XStringToKeysym(const_cast<char *>(key.c_str()));
   if (sym == NoSymbol) return false;
-  b.modifiers = mods;
+  b.modifiers = modval;
   b.key = XKeysymToKeycode(otk::OBDisplay::display, sym);
   return b.key != 0;
 }
 
+static void destroytree(BindingTree *tree)
+{
+  while (tree) {
+    BindingTree *c = tree->first_child;
+    delete tree;
+    tree = c;
+  }
+}
+
 BindingTree *OBBindings::buildtree(const StringVect &keylist, int id)
 {
   if (keylist.empty()) return 0; // nothing in the list.. return 0
 
-  BindingTree *ret = new BindingTree(id), *p = 0;
+  BindingTree *ret = 0, *p;
 
-  StringVect::const_iterator it, end = keylist.end();
-  for (it = keylist.begin(); it != end; ++it) {
-    if (p)
-      p = p->first_child = new BindingTree(id);
-    else
-      p = ret; // the first node
-    
-    if (!translate(*it, p->binding))
-      break;
-    p->text = *it;
-  }
-  if (it != end) {
-    // build failed.. clean up and return 0
+  StringVect::const_reverse_iterator it, end = keylist.rend();
+  for (it = keylist.rbegin(); it != end; ++it) {
     p = ret;
-    while (p->first_child) {
-      BindingTree *c = p->first_child;
-      delete p;
-      p = c;      
+    ret = new BindingTree(id);
+    if (!p) ret->chain = false;
+    ret->first_child = p;
+    if (!translate(*it, ret->binding)) {
+      destroytree(ret);
+      ret = 0;
+      break;
     }
-    delete p;
-    return 0;
-  } else {
-    // set the proper chain status on the last node
-    p->chain = false;
+    ret->text = *it; // XXX: rm me
   }
-
-//  printf("BUILDING:\n");
-//  print_branch(ret, "");
-  
-  // successfully built a tree
   return ret;
 }
 
-static void destroytree(BindingTree *tree)
-{
-  while (tree) {
-    BindingTree *c = tree->first_child;
-    delete tree;
-    tree = c;
-  }
-}
 
 OBBindings::OBBindings()
 {