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polybar/include/modules/xbacklight.hpp
Patrick Ziegler d5be8cad97
Add compiler warning for missing override specifier (#2341)
* build: Add -Wsuggest-override

We should always use the override specifier when overriding virtual
functions. This helps prevent errors when a subclass tries to create a
function with the same name as a virtual function in a super-class but
with a different purpose.

* clang-format

* Upload logs on failure

* Add override to unsupported.hpp

* cmake: Make -Wsuggest-override flag conditional
2021-01-04 10:38:43 +01:00

64 lines
1.7 KiB
C++

#pragma once
#include "components/config.hpp"
#include "modules/meta/event_handler.hpp"
#include "modules/meta/static_module.hpp"
#include "settings.hpp"
#include "x11/extensions/randr.hpp"
POLYBAR_NS
class connection;
namespace modules {
/**
* Backlight module built using the RandR X extension.
*
* This is built as a replacement for the old backlight
* module that was set up using with inotify watches listening
* for changes to the raw file handle.
*
* This module is a lot faster, it's more responsive and it will
* be dormant until new values are reported. Inotify watches
* are a bit random when it comes to proc-/sysfs.
*/
class xbacklight_module : public static_module<xbacklight_module>, public event_handler<evt::randr_notify> {
public:
explicit xbacklight_module(const bar_settings& bar, string name_);
void update();
string get_output();
bool build(builder* builder, const string& tag) const;
static constexpr auto TYPE = "internal/xbacklight";
static constexpr const char* EVENT_INC = "inc";
static constexpr const char* EVENT_DEC = "dec";
protected:
void handle(const evt::randr_notify& evt) override;
void action_inc();
void action_dec();
void change_value(int value_mod);
private:
static constexpr const char* TAG_LABEL{"<label>"};
static constexpr const char* TAG_BAR{"<bar>"};
static constexpr const char* TAG_RAMP{"<ramp>"};
connection& m_connection;
monitor_t m_output;
xcb_window_t m_proxy{};
ramp_t m_ramp;
label_t m_label;
progressbar_t m_progressbar;
bool m_scroll{true};
std::atomic<int> m_percentage{0};
};
} // namespace modules
POLYBAR_NS_END