From ae080d948c902a74179ba69dcedc96284a94820b Mon Sep 17 00:00:00 2001
From: Ollie <ollie@local>
Date: Sat, 30 May 2026 11:50:38 +0200
Subject: [PATCH] fix: resizebar missing corner grab indicators and bevel on
 Wayland

The Wayland backend wl_frame_paint rendered the resizebar texture but never drew the corner grab handles or top bevel lines that X11 includes. Added pixman-based rendering of: (1) top bevel lines (dim at y=0, light at y=1), (2) left corner grab handle (two vertical lines from y=2 to bottom), (3) right corner grab handle (two vertical lines from y=2 to bottom). Light/dim colors are derived from the rendered texture pixel at the resizebar center (+/- 40 per channel).
---
 src/backend/wayland/wl_backend.c | 43 ++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/src/backend/wayland/wl_backend.c b/src/backend/wayland/wl_backend.c
index e7b80e1..c2d43da 100644
--- a/src/backend/wayland/wl_backend.c
+++ b/src/backend/wayland/wl_backend.c
@@ -4990,6 +4990,49 @@ wl_frame_paint(struct WFrameWindow *fwin)
             }
             RReleaseImage(img);
         }
+
+        /* Draw resizebar corner grab indicators */
+        int cw = fwin->resizebar_corner_width;
+        uint32_t *dst = pixman_image_get_data(fb->image);
+        int dst_stride = pixman_image_get_stride(fb->image) / 4;
+        int midx = (rb_w < 1) ? 0 : rb_w / 2;
+        int midy = (rb_h < 1) ? 0 : rb_h / 2;
+        uint32_t base_px = dst[(rb_y + midy) * dst_stride + midx];
+        unsigned char br = (base_px >> 16) & 0xFF;
+        unsigned char bg = (base_px >> 8) & 0xFF;
+        unsigned char bb = (base_px) & 0xFF;
+        uint32_t dim_px = 0xFF000000U |
+            (((unsigned)((br > 40) ? (br - 40) : 0) << 16)) |
+            (((unsigned)((bg > 40) ? (bg - 40) : 0) << 8)) |
+            ((unsigned)((bb > 40) ? (bb - 40) : 0));
+        uint32_t light_px = 0xFF000000U |
+            (((unsigned)((br < 215) ? (br + 40) : 255) << 16)) |
+            (((unsigned)((bg < 215) ? (bg + 40) : 255) << 8)) |
+            ((unsigned)((bb < 215) ? (bb + 40) : 255));
+
+        /* Top bevel: dim at y=0, light at y=1 */
+        for (int x = 0; x < rb_w; x++) {
+            dst[(rb_y + 0) * dst_stride + x] = dim_px;
+            dst[(rb_y + 1) * dst_stride + x] = light_px;
+        }
+
+        /* Left corner grab handle: vertical lines from y=2 to rb_h-1 */
+        int xl = (cw < rb_w) ? cw : rb_w - 1;
+        if (xl > 0) {
+            for (int y = 2; y < rb_h; y++) {
+                dst[(rb_y + y) * dst_stride + xl - 1] = dim_px;
+                dst[(rb_y + y) * dst_stride + xl]     = light_px;
+            }
+        }
+
+        /* Right corner grab handle */
+        int xr = (rb_w - cw - 2 >= 0) ? (rb_w - cw - 2) : 0;
+        if (xr + 1 < rb_w) {
+            for (int y = 2; y < rb_h; y++) {
+                dst[(rb_y + y) * dst_stride + xr]     = dim_px;
+                dst[(rb_y + y) * dst_stride + xr + 1] = light_px;
+            }
+        }
     }
 
     /* Hide the resizebar's own scene node when shaded. */