diff options
| -rw-r--r-- | kitty-graphics.el | 36 |
1 files changed, 26 insertions, 10 deletions
diff --git a/kitty-graphics.el b/kitty-graphics.el index 3f54177..4d26d04 100644 --- a/kitty-graphics.el +++ b/kitty-graphics.el @@ -1316,19 +1316,30 @@ then invalidates position caches and schedules a refresh." (buffer-name)) (dolist (ov kitty-gfx--overlays) (when (overlay-buffer ov) - (let ((id (overlay-get ov 'kitty-gfx-id)) - (pid (overlay-get ov 'kitty-gfx-pid))) - (if (overlay-get ov 'kitty-gfx-last-row) - (when (and id pid) - (kitty-gfx--delete-placement id pid)) - (kitty-gfx--log "on-buffer-change: ov pid=%s has no last-row (never placed or already cleaned)" pid))) - (overlay-put ov 'kitty-gfx-last-row nil) - (overlay-put ov 'kitty-gfx-last-col nil))))))) + (if (overlay-get ov 'kitty-gfx-heading) + ;; Heading overlay — erase multicell block to prevent + ;; ghost artifacts if the new buffer doesn't fully + ;; overwrite the heading's terminal cells. + (when (overlay-get ov 'kitty-gfx-last-row) + (kitty-gfx--erase-heading ov) + (overlay-put ov 'kitty-gfx-last-row nil) + (overlay-put ov 'kitty-gfx-last-col nil)) + ;; Image overlay — delete terminal placement + (let ((id (overlay-get ov 'kitty-gfx-id)) + (pid (overlay-get ov 'kitty-gfx-pid))) + (if (overlay-get ov 'kitty-gfx-last-row) + (when (and id pid) + (kitty-gfx--delete-placement id pid)) + (kitty-gfx--log "on-buffer-change: ov pid=%s has no last-row (never placed or already cleaned)" pid))) + (overlay-put ov 'kitty-gfx-last-row nil) + (overlay-put ov 'kitty-gfx-last-col nil)))))))) ;; Reset cache for visible buffers so they re-place correctly. + ;; Heading overlays preserve cache (same rationale as on-window-change). (dolist (buf (buffer-list)) (with-current-buffer buf (dolist (ov kitty-gfx--overlays) - (when (overlay-buffer ov) + (when (and (overlay-buffer ov) + (not (overlay-get ov 'kitty-gfx-heading))) (overlay-put ov 'kitty-gfx-last-row nil) (overlay-put ov 'kitty-gfx-last-col nil))))) ;; Longer debounce: cancel any fast leading-edge cooldown and @@ -1354,10 +1365,15 @@ buffer before settling to one)." (setq kitty-gfx--cell-pixel-width nil kitty-gfx--cell-pixel-height nil) ;; Reset position cache so images get re-placed at correct positions. + ;; Heading overlays PRESERVE their cache — the refresh cycle needs + ;; old→new position comparison to erase multicell blocks properly. + ;; Images can clear cache because re-placing with the same PID is + ;; idempotent (the terminal replaces the old placement). (dolist (buf (buffer-list)) (with-current-buffer buf (dolist (ov kitty-gfx--overlays) - (when (overlay-buffer ov) + (when (and (overlay-buffer ov) + (not (overlay-get ov 'kitty-gfx-heading))) (overlay-put ov 'kitty-gfx-last-row nil) (overlay-put ov 'kitty-gfx-last-col nil))))) ;; Longer debounce: cancel any fast leading-edge cooldown and |