inline void pi_lua_generic_push(lua_State * l, const KeyBindings::KeyBinding &value) {
if (value.Enabled()) {
pi_lua_generic_push(l, value.ToString());
} else {
lua_pushnil(l);
}
}
static void push_bindings(lua_State *l, const KeyBindings::BindingPrototype *protos) {
LUA_DEBUG_START(l);
lua_newtable(l); // [-1] bindings
lua_pushnil(l); // [-2] bindings, [-1] group (no current group)
assert(!protos[0].function); // first entry should be a group header
int group_idx = 1;
int binding_idx = 1;
for (const KeyBindings::BindingPrototype *proto = protos; proto->label; ++proto) {
if (! proto->function) {
// start a new named binding group
// [-2] bindings, [-1] group
lua_pop(l, 1);
// [-1] bindings
lua_newtable(l);
lua_pushstring(l, proto->label);
lua_setfield(l, -2, "label");
// [-2] bindings, [-1] group
lua_pushvalue(l, -1);
// [-3] bindings, [-2] group, [-1] group copy
lua_rawseti(l, -3, group_idx);
++group_idx;
binding_idx = 1;
} else {
// key or axis binding prototype
// [-2] bindings, [-1] group
lua_createtable(l, 0, 5);
// [-3] bindings, [-2] group, [-1] binding
// fields are: type ('KEY' or 'AXIS'), id ('BindIncreaseSpeed'), label ('Increase Speed'), binding ('Key13'), bindingDescription ('')
lua_pushstring(l, (proto->kb ? "KEY" : "AXIS"));
lua_setfield(l, -2, "type");
lua_pushstring(l, proto->function);
lua_setfield(l, -2, "id");
lua_pushstring(l, proto->label);
lua_setfield(l, -2, "label");
if (proto->kb) {
const KeyBindings::KeyBinding kb1 = proto->kb->binding1;
if (kb1.Enabled()) {
lua_pushstring(l, kb1.ToString().c_str());
lua_setfield(l, -2, "binding1");
lua_pushstring(l, kb1.Description().c_str());
lua_setfield(l, -2, "bindingDescription1");
}
const KeyBindings::KeyBinding kb2 = proto->kb->binding2;
if (kb2.Enabled()) {
lua_pushstring(l, kb2.ToString().c_str());
lua_setfield(l, -2, "binding2");
lua_pushstring(l, kb2.Description().c_str());
lua_setfield(l, -2, "bindingDescription2");
}
} else if (proto->ab) {
const KeyBindings::AxisBinding &ab = *proto->ab;
lua_pushstring(l, ab.ToString().c_str());
lua_setfield(l, -2, "binding1");
lua_pushstring(l, ab.Description().c_str());
lua_setfield(l, -2, "bindingDescription1");
} else {
assert(0); // invalid prototype binding
}
// [-3] bindings, [-2] group, [-1] binding
lua_rawseti(l, -2, binding_idx);
++binding_idx;
}
LUA_DEBUG_CHECK(l, 2); // [-2] bindings, [-1] group
}
// pop the group table (which should already have been put in the bindings table)
lua_pop(l, 1);
LUA_DEBUG_END(l, 1);
}