From 9e53b46e35b09533448b8c58d7ec5727ad978e87 Mon Sep 17 00:00:00 2001
From: bakkeby <bakkeby@gmail.com>
Date: Thu, 24 Oct 2019 06:52:00 +0200
Subject: [PATCH] Adding dragmfact patch

---
 README.md |  5 +++++
 dwm.c     | 46 ++++++++++++++++++++++++++++++++++++++++++----
 patches.h |  7 +++++++
 3 files changed, 54 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 77ca856..195aa35 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,8 @@ Refer to [https://dwm.suckless.org/](https://dwm.suckless.org/) for details on t
 
 ### Changelog:
 
+2019-10-24 - Added dragmfact patch
+
 2019-10-22 - Added ispermanent and swallow patches
 
 2019-10-16 - Introduced [flexipatch-finalizer](https://github.com/bakkeby/flexipatch-finalizer)
@@ -113,6 +115,9 @@ Refer to [https://dwm.suckless.org/](https://dwm.suckless.org/) for details on t
    - [cyclelayouts](https://dwm.suckless.org/patches/cyclelayouts/)
       - lets you cycle through all your layouts
 
+   - [dragmfact](https://dwm.suckless.org/patches/dragmfact/)
+      - lets you resize the split in the tile layout (i.e. modify mfact) by holding the modkey and dragging the mouse
+
    - [dwmc](http://dwm.suckless.org/patches/dwmc/)
       - a simple dwmc client using a fork of fsignal to communicate with dwm
 
diff --git a/dwm.c b/dwm.c
index 56e9d21..6baee23 100644
--- a/dwm.c
+++ b/dwm.c
@@ -2333,9 +2333,25 @@ resizemouse(const Arg *arg)
 	       return;
 	horizcorner = nx < c->w / 2;
 	vertcorner = ny < c->h / 2;
+	#if DRAGMFACT_PATCH
+	if (c->isfloating || NULL == c->mon->lt[c->mon->sellt]->arrange) {
+		XWarpPointer (dpy, None, c->win, 0, 0, 0, 0,
+				horizcorner ? (-c->bw) : (c->w + c->bw - 1),
+				vertcorner ? (-c->bw) : (c->h + c->bw - 1));
+	} else {
+		XWarpPointer(dpy, None, root, 0, 0, 0, 0, selmon->mw * selmon->mfact, selmon->mh / 2);
+	}
+	#else
 	XWarpPointer (dpy, None, c->win, 0, 0, 0, 0,
-		      horizcorner ? (-c->bw) : (c->w + c->bw - 1),
-		      vertcorner ? (-c->bw) : (c->h + c->bw - 1));
+			horizcorner ? (-c->bw) : (c->w + c->bw - 1),
+			vertcorner ? (-c->bw) : (c->h + c->bw - 1));
+	#endif // DRAGMFACT_PATCH
+	#elif DRAGMFACT_PATCH
+	if (c->isfloating || NULL == c->mon->lt[c->mon->sellt]->arrange) {
+		XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
+	} else {
+		XWarpPointer(dpy, None, root, 0, 0, 0, 0, selmon->mw * selmon->mfact, selmon->mh / 2);
+	}
 	#else
 	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
 	#endif // RESIZECORNERS_PATCH
@@ -2360,6 +2376,7 @@ resizemouse(const Arg *arg)
 			nw = MAX(horizcorner ? (ocx2 - nx) : (ev.xmotion.x - ocx - 2 * c->bw + 1), 1);
 			nh = MAX(vertcorner ? (ocy2 - ny) : (ev.xmotion.y - ocy - 2 * c->bw + 1), 1);
 			#endif // RESIZECORNERS_PATCH
+			#if !DRAGMFACT_PATCH
 			if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww
 			&& c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh)
 			{
@@ -2367,6 +2384,7 @@ resizemouse(const Arg *arg)
 				&& (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
 					togglefloating(NULL);
 			}
+			#endif // DRAGMFACT_PATCH
 			if (!selmon->lt[selmon->sellt]->arrange || c->isfloating) {
 				#if RESIZECORNERS_PATCH
 				resize(c, nx, ny, nw, nh, 1);
@@ -2391,9 +2409,29 @@ resizemouse(const Arg *arg)
 		}
 	} while (ev.type != ButtonRelease);
 	#if RESIZECORNERS_PATCH
+	#if DRAGMFACT_PATCH
+	if (c->isfloating || NULL == c->mon->lt[c->mon->sellt]->arrange) {
+		XWarpPointer(dpy, None, c->win, 0, 0, 0, 0,
+				horizcorner ? (-c->bw) : (c->w + c->bw - 1),
+				vertcorner ? (-c->bw) : (c->h + c->bw - 1));
+	} else {
+		selmon->mfact = (double) ev.xmotion.x / (double) selmon->mw;
+		arrange(selmon);
+		XWarpPointer(dpy, None, root, 0, 0, 0, 0, selmon->mw * selmon->mfact, selmon->mh / 2);
+	}
+	#else
 	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0,
-		      horizcorner ? (-c->bw) : (c->w + c->bw - 1),
-		      vertcorner ? (-c->bw) : (c->h + c->bw - 1));
+			horizcorner ? (-c->bw) : (c->w + c->bw - 1),
+			vertcorner ? (-c->bw) : (c->h + c->bw - 1));
+	#endif // DRAGMFACT_PATCH
+	#elif DRAGMFACT_PATCH
+	if (c->isfloating || NULL == c->mon->lt[c->mon->sellt]->arrange) {
+		XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
+	} else {
+		selmon->mfact = (double) ev.xmotion.x / (double) selmon->mw;
+		arrange(selmon);
+		XWarpPointer(dpy, None, root, 0, 0, 0, 0, selmon->mw * selmon->mfact, selmon->mh / 2);
+	}
 	#else
 	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
 	#endif // RESIZECORNERS_PATCH
diff --git a/patches.h b/patches.h
index 8d43958..83c9208 100644
--- a/patches.h
+++ b/patches.h
@@ -115,6 +115,13 @@
  */
 #define CYCLELAYOUTS_PATCH 0
 
+/* This patch lets you resize the split in the tile layout (i.e. modify mfact) by holding
+ * the modkey and dragging the mouse.
+ * This patch can be a bit wonky with other layouts, but generally works.
+ * https://dwm.suckless.org/patches/dragmfact/
+ */
+#define DRAGMFACT_PATCH 0
+
 /* Simple dwmc client using a fork of fsignal to communicate with dwm.
  * To use this either copy the patch/dwmc shell script to somewhere in your path or
  * uncomment the following line in Makefile: #cp -f patch/dwmc ${DESTDIR}${PREFIX}/bin