Adding proposed changes to have different gaps on a per tag basis ref. #106

README.md

@@ -15,6 +15,8 @@ Refer to [https://dwm.suckless.org/](https://dwm.suckless.org/) for details on t
 
 ### Changelog:
 
+2021-04-04 - Added option for having different gaps on a per tag basis
+
 2021-03-31 - Added tapresize patch (contributed by [verschmelzen](https://github.com/verschmelzen))
 
 2021-03-29 - Removed alwaysfullscreen patch (merged into dwm 6.2)

patch/pertag.c

@@ -22,6 +22,9 @@ struct Pertag {
 	#if VANITYGAPS_PATCH
 	int enablegaps[NUMTAGS + 1];
 	#endif // VANITYGAPS_PATCH
+	#if PERTAG_VANITYGAPS_PATCH && VANITYGAPS_PATCH
+	unsigned int gaps[NUMTAGS + 1];
+	#endif // PERTAG_VANITYGAPS_PATCH | VANITYGAPS_PATCH
 };
 
 void
@@ -56,6 +59,13 @@ pertagview(const Arg *arg)
 	selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
 	selmon->lt[selmon->sellt^1] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt^1];
 
+	#if PERTAG_VANITYGAPS_PATCH && VANITYGAPS_PATCH
+	selmon->gappoh = (selmon->pertag->gaps[selmon->pertag->curtag] & 0xff) >> 0;
+	selmon->gappov = (selmon->pertag->gaps[selmon->pertag->curtag] & 0xff00) >> 8;
+	selmon->gappih = (selmon->pertag->gaps[selmon->pertag->curtag] & 0xff0000) >> 16;
+	selmon->gappiv = (selmon->pertag->gaps[selmon->pertag->curtag] & 0xff000000) >> 24;
+	#endif // PERTAG_VANITYGAPS_PATCH | VANITYGAPS_PATCH
+
 	#if FLEXTILE_DELUXE_LAYOUT
 	selmon->ltaxis[LAYOUT] = selmon->pertag->ltaxis[selmon->pertag->curtag][LAYOUT];
 	selmon->ltaxis[MASTER] = selmon->pertag->ltaxis[selmon->pertag->curtag][MASTER];

patch/vanitygaps.c

@@ -1,7 +1,7 @@
 /* Settings */
-#if !PERTAG_PATCH
+#if !PERTAG_VANITYGAPS_PATCH || !PERTAG_PATCH
 static int enablegaps = 1;
-#endif // PERTAG_PATCH
+#endif // PERTAG_VANITYGAPS_PATCH | PERTAG_PATCH
 
 static void
 setgaps(int oh, int ov, int ih, int iv)
@@ -15,6 +15,12 @@ setgaps(int oh, int ov, int ih, int iv)
 	selmon->gappov = ov;
 	selmon->gappih = ih;
 	selmon->gappiv = iv;
+
+	#if PERTAG_VANITYGAPS_PATCH && PERTAG_PATCH
+	selmon->pertag->gaps[selmon->pertag->curtag] =
+		((oh & 0xFF) << 0) | ((ov & 0xFF) << 8) | ((ih & 0xFF) << 16) | ((iv & 0xFF) << 24);
+	#endif // PERTAG_VANITYGAPS_PATCH | PERTAG_PATCH
+
 	arrange(selmon);
 }
 
@@ -60,13 +66,13 @@ setgapsex(const Arg *arg)
 		iv = (arg->i & 0x7f);
 
 	/* Auto enable gaps if disabled */
-	#if PERTAG_PATCH
+	#if PERTAG_VANITYGAPS_PATCH && PERTAG_PATCH
 	if (!selmon->pertag->enablegaps[selmon->pertag->curtag])
 		selmon->pertag->enablegaps[selmon->pertag->curtag] = 1;
 	#else
 	if (!enablegaps)
 		enablegaps = 1;
-	#endif // PERTAG_PATCH
+	#endif // PERTAG_VANITYGAPS_PATCH | PERTAG_PATCH
 
 	setgaps(oh, ov, ih, iv);
 }
@@ -75,11 +81,11 @@ setgapsex(const Arg *arg)
 static void
 togglegaps(const Arg *arg)
 {
-	#if PERTAG_PATCH
+	#if PERTAG_VANITYGAPS_PATCH && PERTAG_PATCH
 	selmon->pertag->enablegaps[selmon->pertag->curtag] = !selmon->pertag->enablegaps[selmon->pertag->curtag];
 	#else
 	enablegaps = !enablegaps;
-	#endif // PERTAG_PATCH
+	#endif // PERTAG_VANITYGAPS_PATCH | PERTAG_PATCH
 	arrange(NULL);
 }
 

patches.def.h

@@ -721,6 +721,11 @@
  */
 #define PERTAG_PATCH 0
 
+/* Option to store gaps on a per tag basis rather than on a per monitor basis.
+ * Depends on both pertag and vanitygaps patches being enabled.
+ */
+#define PERTAG_VANITYGAPS_PATCH 0
+
 /* This controls whether or not to also store bar position on a per
  * tag basis, or leave it as one bar per monitor.
  */