From 8c48f1564c555bbd21758a3a70a9984e61c34a35 Mon Sep 17 00:00:00 2001
From: 6d6f7274686f6e <4648531+6d6f7274686f6e@users.noreply.github.com>
Date: Wed, 17 Mar 2021 10:59:18 +0100
Subject: [PATCH] xresources support

---
 config.def.h | 27 ++++++++++++++------
 tabbed.c     | 69 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 89 insertions(+), 7 deletions(-)

diff --git a/config.def.h b/config.def.h
index defa426..244e288 100644
--- a/config.def.h
+++ b/config.def.h
@@ -1,13 +1,13 @@
 /* See LICENSE file for copyright and license details. */
 
 /* appearance */
-static const char font[]        = "monospace:size=9";
-static const char* normbgcolor  = "#222222";
-static const char* normfgcolor  = "#cccccc";
-static const char* selbgcolor   = "#555555";
-static const char* selfgcolor   = "#ffffff";
-static const char* urgbgcolor   = "#111111";
-static const char* urgfgcolor   = "#cc0000";
+static char font[]        = "monospace:size=9";
+static char* normbgcolor  = "#222222";
+static char* normfgcolor  = "#cccccc";
+static char* selbgcolor   = "#555555";
+static char* selfgcolor   = "#ffffff";
+static char* urgbgcolor   = "#111111";
+static char* urgfgcolor   = "#cc0000";
 static const char before[]      = "<";
 static const char after[]       = ">";
 static const char titletrim[]   = "...";
@@ -33,6 +33,19 @@ static Bool npisrelative  = False;
         } \
 }
 
+/*
+ * Xresources preferences to load at startup
+ */
+ResourcePref resources[] = {
+		{ "font",         STRING,  &font },
+		{ "color0",       STRING,  &normbgcolor },
+		{ "color4",       STRING,  &normfgcolor },
+		{ "color4",       STRING,  &selbgcolor },
+		{ "color7",       STRING,  &selfgcolor },
+		{ "color2",       STRING,  &urgbgcolor },
+		{ "color3",       STRING,  &urgfgcolor },
+};
+
 #define MODKEY ControlMask
 static Key keys[] = {
 	/* modifier             key        function     argument */
diff --git a/tabbed.c b/tabbed.c
index eafe28a..c5bffc7 100644
--- a/tabbed.c
+++ b/tabbed.c
@@ -13,6 +13,7 @@
 #include <X11/Xatom.h>
 #include <X11/Xlib.h>
 #include <X11/Xproto.h>
+#include <X11/Xresource.h>
 #include <X11/Xutil.h>
 #include <X11/XKBlib.h>
 #include <X11/Xft/Xft.h>
@@ -85,11 +86,26 @@ typedef struct {
 	Bool urgent;
 	Bool closed;
 } Client;
+ 
+/* Xresources preferences */
+enum resource_type {
+	STRING = 0,
+	INTEGER = 1,
+	FLOAT = 2
+};
+
+typedef struct {
+	char *name;
+	enum resource_type type;
+	void *dst;
+} ResourcePref;
+ 
 
 /* function declarations */
 static void buttonpress(const XEvent *e);
 static void cleanup(void);
 static void clientmessage(const XEvent *e);
+static void config_init(void);
 static void configurenotify(const XEvent *e);
 static void configurerequest(const XEvent *e);
 static void createnotify(const XEvent *e);
@@ -120,6 +136,7 @@ static void move(const Arg *arg);
 static void movetab(const Arg *arg);
 static void propertynotify(const XEvent *e);
 static void resize(int c, int w, int h);
+static int resource_load(XrmDatabase db, char *name, enum resource_type rtype, void *dst);
 static void rotate(const Arg *arg);
 static void run(void);
 static void sendxembed(int c, long msg, long detail, long d1, long d2);
@@ -245,6 +262,23 @@ clientmessage(const XEvent *e)
 	}
 }
 
+void
+config_init(void)
+{
+	char *resm;
+	XrmDatabase db;
+	ResourcePref *p;
+
+	XrmInitialize();
+	resm = XResourceManagerString(dpy);
+	if (!resm)
+		return;
+
+	db = XrmGetStringDatabase(resm);
+	for (p = resources; p < resources + LENGTH(resources); p++)
+		resource_load(db, p->name, p->type, p->dst);
+}
+
 void
 configurenotify(const XEvent *e)
 {
@@ -897,6 +931,40 @@ resize(int c, int w, int h)
 	           (XEvent *)&ce);
 }
 
+int
+resource_load(XrmDatabase db, char *name, enum resource_type rtype, void *dst)
+{
+	char **sdst = dst;
+	int *idst = dst;
+	float *fdst = dst;
+
+	char fullname[256];
+	char fullclass[256];
+	char *type;
+	XrmValue ret;
+
+	snprintf(fullname, sizeof(fullname), "%s.%s", "tabbed", name);
+	snprintf(fullclass, sizeof(fullclass), "%s.%s", "tabbed", name);
+	fullname[sizeof(fullname) - 1] = fullclass[sizeof(fullclass) - 1] = '\0';
+
+	XrmGetResource(db, fullname, fullclass, &type, &ret);
+	if (ret.addr == NULL || strncmp("String", type, 64))
+		return 1;
+
+	switch (rtype) {
+	case STRING:
+		*sdst = ret.addr;
+		break;
+	case INTEGER:
+		*idst = strtoul(ret.addr, NULL, 10);
+		break;
+	case FLOAT:
+		*fdst = strtof(ret.addr, NULL);
+		break;
+	}
+	return 0;
+}
+
 void
 rotate(const Arg *arg)
 {
@@ -1354,6 +1422,7 @@ main(int argc, char *argv[])
 	if (!(dpy = XOpenDisplay(NULL)))
 		die("%s: cannot open display\n", argv0);
 
+	config_init();
 	setup();
 	printf("0x%lx\n", win);
 	fflush(NULL);
-- 
2.30.2