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polybar/include/components/x11/xresources.hpp
2016-10-25 01:55:59 +02:00

68 lines
1.5 KiB
C++

#pragma once
#include <X11/Xlib.h>
#include <X11/Xresource.h>
#include "common.hpp"
#include "components/x11/xlib.hpp"
LEMONBUDDY_NS
class xresource_manager {
public:
explicit xresource_manager() {
XrmInitialize();
if (xlib::get_display() == nullptr)
return;
if ((m_manager = XResourceManagerString(xlib::get_display())) == nullptr)
return;
if ((m_db = XrmGetStringDatabase(m_manager)) == nullptr)
return;
}
string get_string(string name) const {
return load_value(name, "String", 64);
}
float get_float(string name) const {
return std::strtof(load_value(name, "String", 64).c_str(), 0);
}
int get_int(string name) const {
return std::atoi(load_value(name, "String", 64).c_str());
}
protected:
string load_value(string key, string res_type, size_t n) const {
if (m_manager == nullptr)
return "";
char* type = nullptr;
XrmValue ret;
XrmGetResource(m_db, key.c_str(), res_type.c_str(), &type, &ret);
if (ret.addr != nullptr && !std::strncmp(res_type.c_str(), type, n)) {
return {ret.addr};
}
return "";
}
private:
char* m_manager = nullptr;
XrmDatabase m_db;
};
namespace {
/**
* Configure injection module
*/
template <typename T = const xresource_manager&>
di::injector<T> configure_xresource_manager() {
auto instance = factory::generic_singleton<xresource_manager>();
return di::make_injector(di::bind<>().to(instance));
}
}
LEMONBUDDY_NS_END