From 99ca49947936207276e4c97dd21201027e0ad182 Mon Sep 17 00:00:00 2001
From: Federico Angelilli <code@fedang.net>
Date: Thu, 2 Nov 2023 22:13:17 +0100
Subject: Add logging functions

---
 comet.c |  3 +++
 log.c   | 26 ++++++++++++++++++++++++++
 log.h   | 27 +++++++++++++++++++++++++++
 x11.c   |  4 +++-
 4 files changed, 59 insertions(+), 1 deletion(-)
 create mode 100644 log.c
 create mode 100644 log.h

diff --git a/comet.c b/comet.c
index 5a64235..b125d78 100644
--- a/comet.c
+++ b/comet.c
@@ -2,10 +2,13 @@
 #include <glib-unix.h>
 
 #include "x11.h"
+#include "log.h"
 #include "draw.h"
 
 int main(int argc, char **argv)
 {
+    log_init(G_LOG_LEVEL_DEBUG);
+
     Window *win = window_create();
 
     draw(win);
diff --git a/log.c b/log.c
new file mode 100644
index 0000000..f4c529f
--- /dev/null
+++ b/log.c
@@ -0,0 +1,26 @@
+#include <glib.h>
+
+#include "log.h"
+
+static void log_handler(const char *log_domain,
+                        GLogLevelFlags level,
+                        const char *message,
+                        gpointer log_level)
+{
+	GLogLevelFlags message_level = level & G_LOG_LEVEL_MASK;
+
+	if ((GLogLevelFlags)log_level < message_level)
+		return;
+
+	if (message_level <= G_LOG_LEVEL_WARNING)
+		g_printerr("%s\n", message);
+	else
+		g_print("%s\n", message);
+}
+
+void log_init(GLogLevelFlags level)
+{
+	g_log_set_default_handler(log_handler, (void *)level);
+}
+
+// vim: ts=4 sw=4 et
diff --git a/log.h b/log.h
new file mode 100644
index 0000000..28dbf14
--- /dev/null
+++ b/log.h
@@ -0,0 +1,27 @@
+#ifndef COMET_LOG_H
+#define COMET_LOG_H
+
+#include <stdio.h>
+
+#define DEBUG_FORMAT(format, ...) \
+	"[%s] \x1b[1mdebug\x1b[0m: " format, __func__, ## __VA_ARGS__
+
+#define INFO_FORMAT(format, ...) \
+	"[%s] \x1b[1;96minfo\x1b[0m: " format, __func__, ## __VA_ARGS__
+
+#define WARNING_FORMAT(format, ...) \
+	"[%s] \x1b[1;33mwarning\x1b[0m: " format, __func__, ## __VA_ARGS__
+
+#define ERROR_FORMAT(format, ...) \
+	"[%s] \x1b[1;31merror\x1b[0m: " format, __func__, ## __VA_ARGS__
+
+#define log_debug(...)   g_debug(DEBUG_FORMAT(__VA_ARGS__))
+#define log_info(...)    g_info(INFO_FORMAT(__VA_ARGS__))
+#define log_warning(...) g_warning(WARNING_FORMAT(__VA_ARGS__))
+#define log_error(...)   g_error(ERROR_FORMAT(__VA_ARGS__))
+
+void log_init(GLogLevelFlags level);
+
+#endif
+
+// vim: ts=4 sw=4 et
diff --git a/x11.c b/x11.c
index 26ae535..032b6d4 100644
--- a/x11.c
+++ b/x11.c
@@ -60,7 +60,7 @@ Window *window_create(void)
                       y, x, h, w, 0,
                       XCB_WINDOW_CLASS_INPUT_OUTPUT,
                       win->screen->root_visual,
-					  XCB_CW_BACK_PIXEL,
+                      XCB_CW_BACK_PIXEL,
                       //XCB_CW_BACK_PIXEL | XCB_CW_BACK_PIXMAP | XCB_CW_OVERRIDE_REDIRECT |
                       //    XCB_CW_BORDER_PIXEL | XCB_CW_EVENT_MASK | XCB_CW_COLORMAP,
                       &win->screen->white_pixel);
@@ -89,6 +89,8 @@ done:
     win->surface = cairo_xcb_surface_create(win->connection, win->window, win->visual_type, w, h);
     win->cr = cairo_create(win->surface);
 
+    log_debug("Cairo initialized");
+
     return win;
 }
 
-- 
cgit v1.2.3