somebar/src/common.hpp
Raphael Robatsch 83f59945a6 fix crash when an output goes away
happens e.g. when a monitor is powered off.
The wl_output interface published by dwl has version 1, but the
wl_output_release request is only supported since version 3.
2022-12-04 19:05:35 +01:00

76 lines
2 KiB
C++

// somebar - dwl bar
// See LICENSE file for copyright and license details.
#pragma once
#include <memory>
#include <string>
#include <vector>
#include <wayland-client.h>
#include <linux/input-event-codes.h>
#include <cairo/cairo.h>
#include <pango/pango.h>
#include "wlr-layer-shell-unstable-v1-client-protocol.h"
struct Color {
Color() {}
constexpr Color(uint8_t r, uint8_t g, uint8_t b, uint8_t a=255) : r(r), g(g), b(b), a(a) { }
uint8_t r, g, b, a {255};
};
struct ColorScheme {
Color fg, bg;
};
union Arg {
unsigned int ui;
const void* v;
};
struct Monitor;
enum TagState { None, Active = 0x01, Urgent = 0x02 };
enum Control { ClkNone, ClkTagBar, ClkLayoutSymbol, ClkWinTitle, ClkStatusText };
struct Button {
int control;
int btn; // <linux/input-event-codes.h>
void (*func)(Monitor& mon, const Arg& arg);
const Arg arg;
};
extern wl_display* display;
extern wl_compositor* compositor;
extern wl_shm* shm;
extern zwlr_layer_shell_v1* wlrLayerShell;
void spawn(Monitor&, const Arg& arg);
void setCloexec(int fd);
[[noreturn]] void die(const char* why);
[[noreturn]] void diesys(const char* why);
// wayland smart pointers
template<typename T>
struct WlDeleter;
#define WL_DELETER(type, fn) template<> struct WlDeleter<type> { \
void operator()(type* v) { if(v) fn(v); } \
}
template<typename T>
using wl_unique_ptr = std::unique_ptr<T, WlDeleter<T>>;
inline void wl_output_release_checked(wl_output* output) {
if (wl_output_get_version(output) >= WL_OUTPUT_RELEASE_SINCE_VERSION) {
wl_output_release(output);
}
}
WL_DELETER(wl_buffer, wl_buffer_destroy);
WL_DELETER(wl_output, wl_output_release_checked);
WL_DELETER(wl_pointer, wl_pointer_release);
WL_DELETER(wl_seat, wl_seat_release);
WL_DELETER(wl_surface, wl_surface_destroy);
WL_DELETER(zwlr_layer_surface_v1, zwlr_layer_surface_v1_destroy);
WL_DELETER(cairo_t, cairo_destroy);
WL_DELETER(cairo_surface_t, cairo_surface_destroy);
WL_DELETER(PangoContext, g_object_unref);
WL_DELETER(PangoLayout, g_object_unref);
#undef WL_DELETER