bool StyleContext::evalStyle(FunctionID _id, StyleParamKey _key, StyleParam::Value& _val) {
if (!evalFunction(_id)) { return false; }
// parse evaluated result at stack top
parseStyleResult(_key, _val);
// pop result, empty stack
duk_pop(m_ctx);
return !_val.is<none_type>();
}
bool StyleContext::evalStyleFn(const std::string& name, StyleParamKey _key, StyleParam::Value& _val) {
if (!duk_get_global_string(m_ctx, name.c_str())) {
logMsg("Error: evalFilter %s\n", name.c_str());
return false;
}
if (duk_pcall(m_ctx, 0) != 0) {
logMsg("Error: evalStyleFn: %s\n", duk_safe_to_string(m_ctx, -1));
duk_pop(m_ctx);
return false;
}
return parseStyleResult(_key, _val);
}
bool StyleContext::evalStyle(FunctionID _id, StyleParamKey _key, StyleParam::Value& _val) const {
if (!duk_get_global_string(m_ctx, FUNC_ID)) {
logMsg("Error: evalFilterFn - functions array not initialized\n");
return false;
}
if (!duk_get_prop_index(m_ctx, -1, _id)) {
logMsg("Error: evalFilterFn - function %d not set\n", _id);
}
// pop fns array
duk_remove(m_ctx, -2);
if (duk_pcall(m_ctx, 0) != 0) {
logMsg("Error: evalFilterFn: %s\n", duk_safe_to_string(m_ctx, -1));
duk_pop(m_ctx);
return false;
}
return parseStyleResult(_key, _val);
}
