From a0900d9fca611b2a4fe0cc9fe97abdf77b81d8e5 Mon Sep 17 00:00:00 2001 From: "Eric S. Raymond" Date: Wed, 14 Apr 1993 03:34:44 +0000 Subject: [PATCH] (shrink-window-if-larger-than-buffer): Moved from electric.el to windows.el, minor bug fix. This is to avoid code duplication between vc.el, electric.el, and finder.el. (ctl-x-map): Added C-x - and C-x + as bindings for shrink-window-if-larger-than-buffer and balance-windows respectively. Since shrink-window-if-larger-than-buffer has to live here anyhow, let users use it to manage screen space. --- lisp/window.el | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/lisp/window.el b/lisp/window.el index 089b4f3b4f..840035a4af 100644 --- a/lisp/window.el +++ b/lisp/window.el @@ -109,9 +109,42 @@ ARG columns. No arg means split equally." (interactive "p") (shrink-window arg t)) +(defun shrink-window-if-larger-than-buffer (&optional window) + "Shrink the WINDOW to be as small as possible to display its contents. Do +nothing if only one window is displayed or if the buffer contains more lines +than the present window height." + (save-excursion + (set-buffer (window-buffer window)) + (let ((w (selected-window)) ;save-window-excursion can't win + (buffer-file-name buffer-file-name) + (p (point)) + (n 0) + (window-min-height 0) + (buffer-read-only nil) + (modified (buffer-modified-p)) + (buffer (current-buffer))) + (unwind-protect + (progn + (select-window (or window w)) + (goto-char (point-min)) + (while (pos-visible-in-window-p (point-max)) + ;; defeat file locking... don't try this at home, kids! + (setq buffer-file-name nil) + (insert ?\n) (setq n (1+ n))) + (if (> n 0) (shrink-window (1- n)))) + (delete-region (point-min) (point)) + (set-buffer-modified-p modified) + (goto-char p) + (select-window w) + ;; Make sure we unbind buffer-read-only + ;; with the proper current buffer. + (set-buffer buffer))))) + (define-key ctl-x-map "2" 'split-window-vertically) (define-key ctl-x-map "3" 'split-window-horizontally) (define-key ctl-x-map "}" 'enlarge-window-horizontally) (define-key ctl-x-map "{" 'shrink-window-horizontally) +(define-key ctl-x-map "-" 'shrink-window-if-larger-than-buffer) +(define-key ctl-x-map "+" 'balance-windows) ;;; windows.el ends here -- 2.39.2