clang-format-3.5 **/*.h **/*.c

[i3/i3] / include / libi3.h

diff --git a/include/libi3.h b/include/libi3.h
index 53f3383d35390671e0f2621e23c57150e1d1fc0a..7c0ead32be1df03170396c11ba09e606aefe3f2e 100644 (file)
--- a/include/libi3.h
+++ b/include/libi3.h
@@ -8,8 +8,7 @@
  * as i3-msg, i3-config-wizard, …
  *
  */
-#ifndef I3_LIBI3_H
-#define I3_LIBI3_H
+#pragma once
 
 #include <stdbool.h>
 #include <stdarg.h>
@@ -72,23 +71,33 @@ struct Font {
 /* Since this file also gets included by utilities which don’t use the i3 log
  * infrastructure, we define a fallback. */
 #if !defined(LOG)
-void verboselog(char *fmt, ...);
+void verboselog(char *fmt, ...)
+    __attribute__((format(printf, 1, 2)));
 #define LOG(fmt, ...) verboselog("[libi3] " __FILE__ " " fmt, ##__VA_ARGS__)
 #endif
 #if !defined(ELOG)
-void errorlog(char *fmt, ...);
+void errorlog(char *fmt, ...)
+    __attribute__((format(printf, 1, 2)));
 #define ELOG(fmt, ...) errorlog("[libi3] ERROR: " fmt, ##__VA_ARGS__)
 #endif
+#if !defined(DLOG)
+void debuglog(char *fmt, ...)
+    __attribute__((format(printf, 1, 2)));
+#define DLOG(fmt, ...) debuglog("%s:%s:%d - " fmt, I3__FILE__, __FUNCTION__, __LINE__, ##__VA_ARGS__)
+#endif
 
 /**
  * Try to get the contents of the given atom (for example I3_SOCKET_PATH) from
  * the X11 root window and return NULL if it doesn’t work.
  *
+ * If the provided XCB connection is NULL, a new connection will be
+ * established.
+ *
  * The memory for the contents is dynamically allocated and has to be
  * free()d by the caller.
  *
  */
-char *root_atom_contents(const char *atomname);
+char *root_atom_contents(const char *atomname, xcb_connection_t *provided_conn, int screen);
 
 /**
  * Safe-wrapper around malloc which exits if malloc returns NULL (meaning that
@@ -158,13 +167,13 @@ void i3string_free(i3String *str);
  * to prevent accidentally using freed memory.
  *
  */
-#define I3STRING_FREE(str) \
-do { \
- if (str != NULL) { \
- i3string_free(str); \
- str = NULL; \
- } \
-} while (0)
+#define I3STRING_FREE(str)      \
+    do {                        \
+        if (str != NULL) {      \
+            i3string_free(str); \
+            str = NULL;         \
+        }                       \
+    } while (0)
 
 /**
  * Returns the UTF-8 encoded version of the i3String.
@@ -276,8 +285,8 @@ uint32_t aio_get_mod_mask_for(uint32_t keysym, xcb_key_symbols_t *symbols);
  *
  */
 uint32_t get_mod_mask_for(uint32_t keysym,
-                           xcb_key_symbols_t *symbols,
-                           xcb_get_modifier_mapping_reply_t *modmap_reply);
+                          xcb_key_symbols_t *symbols,
+                          xcb_get_modifier_mapping_reply_t *modmap_reply);
 
 /**
  * Loads a font for usage, also getting its height. If fallback is true,
@@ -329,14 +338,14 @@ void set_font_colors(xcb_gcontext_t gc, uint32_t foreground, uint32_t background
  *
  */
 void draw_text(i3String *text, xcb_drawable_t drawable,
-        xcb_gcontext_t gc, int x, int y, int max_width);
+               xcb_gcontext_t gc, int x, int y, int max_width);
 
 /**
  * ASCII version of draw_text to print static strings.
  *
  */
 void draw_text_ascii(const char *text, xcb_drawable_t drawable,
-        xcb_gcontext_t gc, int x, int y, int max_width);
+                     xcb_gcontext_t gc, int x, int y, int max_width);
 
 /**
  * Predict the text width in pixels for the given text. Text must be
@@ -364,4 +373,19 @@ bool is_debug_build() __attribute__((const));
  */
 char *get_process_filename(const char *prefix);
 
-#endif
+/**
+ * This function returns the absolute path to the executable it is running in.
+ *
+ * The implementation follows http://stackoverflow.com/a/933996/712014
+ *
+ * Returned value must be freed by the caller.
+ */
+char *get_exe_path(const char *argv0);
+
+/**
+ * Convert a logical amount of pixels (e.g. 2 pixels on a “standard” 96 DPI
+ * screen) to a corresponding amount of physical pixels on a standard or retina
+ * screen, e.g. 5 pixels on a 227 DPI MacBook Pro 13" Retina screen.
+ *
+ */
+int logical_px(const int logical);