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From 5fab55803d009d400f6c3fcbe6a0fc807431bbe7 Mon Sep 17 00:00:00 2001
From: mmistika <mistikasoft@gmail.com>
Date: Thu, 17 Jul 2025 11:59:18 +0200
Subject: [PATCH] Add configurable window resize
Signed-off-by: mmistika <mistikasoft@gmail.com>
---
config.def.h | 12 ++++++++++++
dwl.c | 48 ++++++++++++++++++++++++++++++++++++++++--------
2 files changed, 52 insertions(+), 8 deletions(-)
diff --git a/config.def.h b/config.def.h
index 22d2171..e404549 100644
--- a/config.def.h
+++ b/config.def.h
@@ -20,6 +20,18 @@ static const float fullscreen_bg[] = {0.1f, 0.1f, 0.1f, 1.0f}; /* You ca
/* logging */
static int log_level = WLR_ERROR;
+/* window resizing */
+/* resize_corner:
+ * 0: top-left
+ * 1: top-right
+ * 2: bottom-left
+ * 3: bottom-right
+ * 4: closest to the cursor
+ */
+static const int resize_corner = 4;
+static const int warp_cursor = 1; /* 1: warp to corner, 0: don’t warp */
+static const int lock_cursor = 0; /* 1: lock cursor, 0: don't lock */
+
/* NOTE: ALWAYS keep a rule declared even if you don't use rules (e.g leave at least one example) */
static const Rule rules[] = {
/* app_id title tags mask isfloating monitor */
diff --git a/dwl.c b/dwl.c
index c717c1d..0d56b49 100644
--- a/dwl.c
+++ b/dwl.c
@@ -407,6 +407,7 @@ static KeyboardGroup *kb_group;
static unsigned int cursor_mode;
static Client *grabc;
static int grabcx, grabcy; /* client-relative */
+static int rzcorner;
static struct wlr_output_layout *output_layout;
static struct wlr_box sgeom;
@@ -1873,8 +1874,27 @@ motionnotify(uint32_t time, struct wlr_input_device *device, double dx, double d
.width = grabc->geom.width, .height = grabc->geom.height}, 1);
return;
} else if (cursor_mode == CurResize) {
- resize(grabc, (struct wlr_box){.x = grabc->geom.x, .y = grabc->geom.y,
- .width = (int)round(cursor->x) - grabc->geom.x, .height = (int)round(cursor->y) - grabc->geom.y}, 1);
+ int cdx = (int)round(cursor->x) - grabcx;
+ int cdy = (int)round(cursor->y) - grabcy;
+
+ cdx = !(rzcorner & 1) && grabc->geom.width - 2 * (int)grabc->bw - cdx < 1 ? 0 : cdx;
+ cdy = !(rzcorner & 2) && grabc->geom.height - 2 * (int)grabc->bw - cdy < 1 ? 0 : cdy;
+
+ const struct wlr_box box = {
+ .x = grabc->geom.x + (rzcorner & 1 ? 0 : cdx),
+ .y = grabc->geom.y + (rzcorner & 2 ? 0 : cdy),
+ .width = grabc->geom.width + (rzcorner & 1 ? cdx : -cdx),
+ .height = grabc->geom.height + (rzcorner & 2 ? cdy : -cdy)
+ };
+ resize(grabc, box, 1);
+
+ if (!lock_cursor) {
+ grabcx += cdx;
+ grabcy += cdy;
+ } else {
+ wlr_cursor_warp_closest(cursor, NULL, grabcx, grabcy);
+ }
+
return;
}
@@ -1920,12 +1940,24 @@ moveresize(const Arg *arg)
wlr_cursor_set_xcursor(cursor, cursor_mgr, "fleur");
break;
case CurResize:
- /* Doesn't work for X11 output - the next absolute motion event
- * returns the cursor to where it started */
- wlr_cursor_warp_closest(cursor, NULL,
- grabc->geom.x + grabc->geom.width,
- grabc->geom.y + grabc->geom.height);
- wlr_cursor_set_xcursor(cursor, cursor_mgr, "se-resize");
+ const char *cursors[] = { "nw-resize", "ne-resize", "sw-resize", "se-resize" };
+
+ rzcorner = resize_corner;
+ grabcx = (int)round(cursor->x);
+ grabcy = (int)round(cursor->y);
+
+ if (rzcorner == 4)
+ /* identify the closest corner index */
+ rzcorner = (grabcx - grabc->geom.x < grabc->geom.x + grabc->geom.width - grabcx ? 0 : 1)
+ + (grabcy - grabc->geom.y < grabc->geom.y + grabc->geom.height - grabcy ? 0 : 2);
+
+ if (warp_cursor) {
+ grabcx = rzcorner & 1 ? grabc->geom.x + grabc->geom.width : grabc->geom.x;
+ grabcy = rzcorner & 2 ? grabc->geom.y + grabc->geom.height : grabc->geom.y;
+ wlr_cursor_warp_closest(cursor, NULL, grabcx, grabcy);
+ }
+
+ wlr_cursor_set_xcursor(cursor, cursor_mgr, cursors[rzcorner]);
break;
}
}
--
2.50.1
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