btrtile: Spring update pt2

- Simplified the resizing logic to avoid full arrange calls from
motionnotify
- Minor intend fixes
This commit is contained in:
julmajustus
2026-05-21 00:54:00 +03:00
parent 7f06b4c1a3
commit 03de6e2ada
4 changed files with 445 additions and 458 deletions
@@ -1,23 +1,24 @@
From b8d84c87f13681118865b83312387a881ab10b73 Mon Sep 17 00:00:00 2001
From c11b1a8c93c27fad3782e9dbc1b094a4a7b78088 Mon Sep 17 00:00:00 2001
From: julmajustus <julmajustus@tutanota.com>
Date: Sun, 17 May 2026 23:10:49 +0300
Subject: [PATCH] btrtile resizing refactor
Date: Thu, 21 May 2026 00:38:45 +0300
Subject: [PATCH] btrtile: Spring update pt2
- Refactored the tiled client resizing logic to be more logical. Insted
of resizing based on clients split nodes, now btrtile handles client resizing based on the nearest edge client edge on the resize direction. Now it handles also resizing of the clientless splitnodes and should feel more intuitive.
- Simplified the resizing logic to avoid full arrange calls from
motionnotify
- Minor intend fixes
---
btrtile.c | 582 +++++++++++++++++++++++++++++++++++++++++++++++++++
btrtile.c | 583 +++++++++++++++++++++++++++++++++++++++++++++++++++
config.def.h | 12 ++
dwl.c | 161 +++++++++++---
3 files changed, 728 insertions(+), 27 deletions(-)
dwl.c | 152 +++++++++++---
3 files changed, 720 insertions(+), 27 deletions(-)
create mode 100644 btrtile.c
diff --git a/btrtile.c b/btrtile.c
new file mode 100644
index 0000000..c63e59f
index 0000000..f05a30f
--- /dev/null
+++ b/btrtile.c
@@ -0,0 +1,582 @@
@@ -0,0 +1,583 @@
+/* ************************************************************************** */
+/* @@@ @@@@@@@@ */
+/* @@@ @@@@@@@@@@ */
@@ -28,7 +29,7 @@ index 0000000..c63e59f
+/* By: julmajustus <julmajustus@tutanota.com> !!: !!:! !!! */
+/* ::! :!: !:! */
+/* Created: 2024/12/15 00:26:07 by julmajustus :: ::::::: :: */
+/* Updated: 2026/05/17 22:00:31 by julmajustus : : : : : : */
+/* Updated: 2026/05/20 22:38:02 by julmajustus : : : : : : */
+/* */
+/* ************************************************************************** */
+
@@ -63,7 +64,6 @@ index 0000000..c63e59f
+static unsigned int visible_count(LayoutNode *node, Monitor *m);
+static Client *xytoclient(double x, double y);
+
+static int resizing_from_mouse = 0;
+static double resize_last_update_x, resize_last_update_y;
+static uint32_t last_resize_time = 0;
+
@@ -91,6 +91,9 @@ index 0000000..c63e59f
+ c = node->client;
+ if (!c || !VISIBLEON(c, m) || c->isfloating || c->isfullscreen)
+ return;
+ if (area.x == c->old_geom.x && area.y == c->old_geom.y &&
+ area.width == c->old_geom.width && area.height == c->old_geom.height)
+ return;
+ resize(c, area, 0);
+ c->old_geom = area;
+ return;
@@ -169,16 +172,16 @@ index 0000000..c63e59f
+ LayoutNode *found;
+ struct wlr_box full_area;
+
+ if (!m)
+ return;
+ if (!m)
+ return;
+
+ /* Remove non tiled clients from tree. */
+ wl_list_for_each(c, &clients, link) {
+ if (c->mon == m && !c->isfloating && !c->isfullscreen) {
+ } else {
+ remove_client(m, c);
+ }
+ }
+ /* Remove non tiled clients from tree. */
+ wl_list_for_each(c, &clients, link) {
+ if (c->mon == m && !c->isfloating && !c->isfullscreen) {
+ } else {
+ remove_client(m, c);
+ }
+ }
+
+ /* If no client is found under cursor, fallback to focustop(m) */
+ if (!(focused = xytoclient(cursor->x, cursor->y)))
@@ -272,7 +275,7 @@ index 0000000..c63e59f
+
+LayoutNode *
+find_suitable_split(Monitor *m, LayoutNode *start_node,
+ unsigned int need_vertical, int focused_on_left)
+ unsigned int need_vertical, int focused_on_left)
+{
+ LayoutNode *n = start_node, *child = NULL;
+
@@ -444,11 +447,11 @@ index 0000000..c63e59f
+ if (!client_node)
+ return;
+
+ focused_on_left = (arg->f >= 0.0f);
+ focused_on_left = (arg->f >= 0.0f);
+
+ split_node = find_suitable_split(selmon, client_node, need_vertical, focused_on_left);
+
+ if (!split_node)
+ if (!split_node)
+ split_node = find_suitable_split(selmon, client_node, need_vertical, !focused_on_left);
+ if (!split_node)
+ return;
@@ -460,10 +463,9 @@ index 0000000..c63e59f
+ new_ratio = 0.95f;
+ split_node->split_ratio = new_ratio;
+
+ apply_layout(selmon, selmon->root, selmon->w, 1);
+ /* Skip the arrange when called from motionnotify; that path calls
+ * arrange itself after rate-limiting. */
+ if (!resizing_from_mouse)
+ arrange(selmon);
+}
+
+void
@@ -479,69 +481,69 @@ index 0000000..c63e59f
+}
+
+void swapclients(const Arg *arg) {
+ Client *c, *tmp, *target = NULL, *sel = focustop(selmon);
+ Client *c, *tmp, *target = NULL, *sel = focustop(selmon);
+ LayoutNode *sel_node, *target_node;
+ int closest_dist = INT_MAX, dist, sel_center_x, sel_center_y,
+ int closest_dist = INT_MAX, dist, sel_center_x, sel_center_y,
+ cand_center_x, cand_center_y;
+
+ if (!sel || sel->isfullscreen ||
+ !selmon->root || !selmon->lt[selmon->sellt]->arrange)
+ return;
+ if (!sel || sel->isfullscreen ||
+ !selmon->root || !selmon->lt[selmon->sellt]->arrange)
+ return;
+
+
+ /* Get the center coordinates of the selected client */
+ sel_center_x = sel->geom.x + sel->geom.width / 2;
+ sel_center_y = sel->geom.y + sel->geom.height / 2;
+ /* Get the center coordinates of the selected client */
+ sel_center_x = sel->geom.x + sel->geom.width / 2;
+ sel_center_y = sel->geom.y + sel->geom.height / 2;
+
+ wl_list_for_each(c, &clients, link) {
+ if (!VISIBLEON(c, selmon) || c->isfloating || c->isfullscreen || c == sel)
+ continue;
+ wl_list_for_each(c, &clients, link) {
+ if (!VISIBLEON(c, selmon) || c->isfloating || c->isfullscreen || c == sel)
+ continue;
+
+ /* Get the center of candidate client */
+ cand_center_x = c->geom.x + c->geom.width / 2;
+ cand_center_y = c->geom.y + c->geom.height / 2;
+ /* Get the center of candidate client */
+ cand_center_x = c->geom.x + c->geom.width / 2;
+ cand_center_y = c->geom.y + c->geom.height / 2;
+
+ /* Check that the candidate lies in the requested direction. */
+ switch (arg->ui) {
+ case 0:
+ if (cand_center_x >= sel_center_x)
+ continue;
+ break;
+ case 1:
+ if (cand_center_x <= sel_center_x)
+ continue;
+ break;
+ case 2:
+ if (cand_center_y >= sel_center_y)
+ continue;
+ break;
+ case 3:
+ if (cand_center_y <= sel_center_y)
+ continue;
+ break;
+ default:
+ continue;
+ }
+ /* Check that the candidate lies in the requested direction. */
+ switch (arg->ui) {
+ case 0:
+ if (cand_center_x >= sel_center_x)
+ continue;
+ break;
+ case 1:
+ if (cand_center_x <= sel_center_x)
+ continue;
+ break;
+ case 2:
+ if (cand_center_y >= sel_center_y)
+ continue;
+ break;
+ case 3:
+ if (cand_center_y <= sel_center_y)
+ continue;
+ break;
+ default:
+ continue;
+ }
+
+ /* Get distance between the centers */
+ dist = abs(sel_center_x - cand_center_x) + abs(sel_center_y - cand_center_y);
+ if (dist < closest_dist) {
+ closest_dist = dist;
+ target = c;
+ }
+ }
+ /* Get distance between the centers */
+ dist = abs(sel_center_x - cand_center_x) + abs(sel_center_y - cand_center_y);
+ if (dist < closest_dist) {
+ closest_dist = dist;
+ target = c;
+ }
+ }
+
+ /* If target is found, swap the two clients positions in the layout tree */
+ if (target) {
+ sel_node = find_client_node(selmon->root, sel);
+ target_node = find_client_node(selmon->root, target);
+ if (sel_node && target_node) {
+ tmp = sel_node->client;
+ sel_node->client = target_node->client;
+ target_node->client = tmp;
+ arrange(selmon);
+ }
+ }
+ /* If target is found, swap the two clients positions in the layout tree */
+ if (target) {
+ sel_node = find_client_node(selmon->root, sel);
+ target_node = find_client_node(selmon->root, target);
+ if (sel_node && target_node) {
+ tmp = sel_node->client;
+ sel_node->client = target_node->client;
+ target_node->client = tmp;
+ arrange(selmon);
+ }
+ }
+}
+
+unsigned int
@@ -564,7 +566,7 @@ index 0000000..c63e59f
+
+Client *
+xytoclient(double x, double y) {
+ Monitor *m = xytomon(x, y);
+ Monitor *m = xytomon(x, y);
+ Client *c, *closest = NULL;
+ double dist, mindist = INT_MAX, dx, dy;
+
@@ -639,7 +641,7 @@ index 8a6eda0..bc04e3f 100644
TAGKEYS( XKB_KEY_2, XKB_KEY_at, 1),
TAGKEYS( XKB_KEY_3, XKB_KEY_numbersign, 2),
diff --git a/dwl.c b/dwl.c
index 8101ffa..32a94c4 100644
index 8101ffa..c9650c1 100644
--- a/dwl.c
+++ b/dwl.c
@@ -1,6 +1,7 @@
@@ -721,7 +723,7 @@ index 8101ffa..32a94c4 100644
b->func(&b->arg);
return;
}
@@ -659,6 +668,27 @@ buttonpress(struct wl_listener *listener, void *data)
@@ -659,6 +668,21 @@ buttonpress(struct wl_listener *listener, void *data)
/* If you released any buttons, we exit interactive move/resize mode. */
/* TODO: should reset to the pointer focus's current setcursor */
if (!locked && cursor_mode != CurNormal && cursor_mode != CurPressed) {
@@ -736,20 +738,14 @@ index 8101ffa..32a94c4 100644
+ selmon->root = create_client_node(c);
+
+ setfloating(c, 0);
+ arrange(selmon);
+
+ } else if (cursor_mode == CurResize && !c->isfloating) {
+ resizing_from_mouse = 0;
+ apply_layout(selmon, selmon->root, selmon->w, 1);
+ }
+ } else {
+ if (cursor_mode == CurResize && resizing_from_mouse)
+ resizing_from_mouse = 0;
+ }
+ /* Default behaviour */
wlr_cursor_set_xcursor(cursor, cursor_mgr, "default");
cursor_mode = CurNormal;
/* Drop the window off on its new monitor */
@@ -750,6 +780,7 @@ cleanupmon(struct wl_listener *listener, void *data)
@@ -750,6 +774,7 @@ cleanupmon(struct wl_listener *listener, void *data)
wlr_output_layout_remove(output_layout, m->wlr_output);
wlr_scene_output_destroy(m->scene_output);
@@ -757,7 +753,7 @@ index 8101ffa..32a94c4 100644
closemon(m);
wlr_scene_node_destroy(&m->fullscreen_bg->node);
free(m);
@@ -1094,6 +1125,7 @@ createmon(struct wl_listener *listener, void *data)
@@ -1094,6 +1119,7 @@ createmon(struct wl_listener *listener, void *data)
wl_list_insert(&mons, &m->link);
printstatus();
@@ -765,23 +761,26 @@ index 8101ffa..32a94c4 100644
/* The xdg-protocol specifies:
*
@@ -1336,6 +1368,15 @@ destroynotify(struct wl_listener *listener, void *data)
@@ -1332,10 +1358,18 @@ void
destroynotify(struct wl_listener *listener, void *data)
{
/* Called when the xdg_toplevel is destroyed. */
+ Monitor *mon;
Client *c = wl_container_of(listener, c, destroy);
wl_list_remove(&c->destroy.link);
wl_list_remove(&c->set_title.link);
wl_list_remove(&c->fullscreen.link);
+ /* We check if the destroyed client was part of any tiled_list, to catch
+ * client removals even if they would not be currently managed by btrtile */
+ // btrtile remove clients for each monitor
+ Monitor *mon;
+ wl_list_for_each(mon, &mons, link) {
+ if (mon->root) {
+ remove_client(mon, c);
+ }
+ }
+ wl_list_for_each(mon, &mons, link) {
+ if (mon->root) {
+ remove_client(mon, c);
+ }
+ }
#ifdef XWAYLAND
if (c->type != XDGShell) {
wl_list_remove(&c->activate.link);
@@ -1866,7 +1907,8 @@ void
@@ -1866,7 +1900,8 @@ void
motionnotify(uint32_t time, struct wlr_input_device *device, double dx, double dy,
double dx_unaccel, double dy_unaccel)
{
@@ -791,13 +790,13 @@ index 8101ffa..32a94c4 100644
Client *c = NULL, *w = NULL;
LayerSurface *l = NULL;
struct wlr_surface *surface = NULL;
@@ -1920,18 +1962,56 @@ motionnotify(uint32_t time, struct wlr_input_device *device, double dx, double d
@@ -1920,18 +1955,55 @@ motionnotify(uint32_t time, struct wlr_input_device *device, double dx, double d
/* Update drag icon's position */
wlr_scene_node_set_position(&drag_icon->node, (int)round(cursor->x), (int)round(cursor->y));
- /* If we are currently grabbing the mouse, handle and return */
+ /* Skip if internal call or already resizing */
+ if (time == 0 && resizing_from_mouse)
+ /* Skip if internal call */
+ if (time == 0)
+ goto focus;
+
+ tiled = grabc && !grabc->isfloating && !grabc->isfullscreen;
@@ -819,7 +818,7 @@ index 8101ffa..32a94c4 100644
- 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);
- return;
+ if (tiled && resizing_from_mouse) {
+ if (tiled) {
+ dx_total = cursor->x - resize_last_update_x;
+ dy_total = cursor->y - resize_last_update_y;
+
@@ -832,7 +831,6 @@ index 8101ffa..32a94c4 100644
+ a.f = (float)(dy_total * resize_factor);
+ setratio_v(&a);
+ }
+ arrange(selmon);
+
+ last_resize_time = time;
+ resize_last_update_x = cursor->x;
@@ -855,7 +853,7 @@ index 8101ffa..32a94c4 100644
/* If there's no client surface under the cursor, set the cursor image to a
* default. This is what makes the cursor image appear when you move it
* off of a client or over its border. */
@@ -1965,22 +2045,41 @@ moveresize(const Arg *arg)
@@ -1965,22 +2037,40 @@ moveresize(const Arg *arg)
if (!grabc || client_is_unmanaged(grabc) || grabc->isfullscreen)
return;
@@ -890,7 +888,6 @@ index 8101ffa..32a94c4 100644
+ wlr_cursor_set_xcursor(cursor, cursor_mgr, "se-resize");
+ resize_last_update_x = cursor->x;
+ resize_last_update_y = cursor->y;
+ resizing_from_mouse = 1;
+ break;
+ }
+ } else {
@@ -913,17 +910,17 @@ index 8101ffa..32a94c4 100644
}
}
@@ -2833,6 +2932,14 @@ unmapnotify(struct wl_listener *listener, void *data)
@@ -2833,6 +2923,14 @@ unmapnotify(struct wl_listener *listener, void *data)
focusclient(focustop(selmon), 1);
}
} else {
+ // btrtile remove clients for each monitor
+ Monitor *mon;
+ wl_list_for_each(mon, &mons, link) {
+ if (mon->root) {
+ remove_client(mon, c);
+ }
+ }
+ /* btrtile remove clients for each monitor */
+ Monitor *mon;
+ wl_list_for_each(mon, &mons, link) {
+ if (mon->root) {
+ remove_client(mon, c);
+ }
+ }
+
wl_list_remove(&c->link);
setmon(c, NULL, 0);