Commit 8dd3e94f authored by Martin Rudalics's avatar Martin Rudalics

Fix handling of window-min-height/-width (Bug#16738).

* window.el (window--dump-window, window--dump-frame): New
functions.
(window--min-size-1): Account for window dividers.  When
window-resize-pixelwise is nil, delay rounding till after the
sum of the window components has been calculated.
(window--min-delta-1, window--max-delta-1): When PIXELWISE is
nil make sure at least one text line and two text columns remain
fully visible.
(window-resize): Signal an error when window-resize-apply fails.
(window--resize-child-windows): Fix calculation of by how many
pixels a window can still be shrunk via window-new-normal.
(adjust-window-trailing-edge): Call window--resizable with
correct TRAIL argument.
parent afe1e4c8
2014-02-21 Martin Rudalics <rudalics@gmx.at>
Fix handling of window-min-height/-width (Bug#16738).
* window.el (window--dump-window, window--dump-frame): New
functions.
(window--min-size-1): Account for window dividers. When
window-resize-pixelwise is nil, delay rounding till after the
sum of the window components has been calculated.
(window--min-delta-1, window--max-delta-1): When PIXELWISE is
nil make sure at least one text line and two text columns remain
fully visible.
(window-resize): Signal an error when window-resize-apply fails.
(window--resize-child-windows): Fix calculation of by how many
pixels a window can still be shrunk via window-new-normal.
(adjust-window-trailing-edge): Call window--resizable with
correct TRAIL argument.
2014-02-21 Michael Albinus <michael.albinus@gmx.de>
* net/tramp.el (tramp-check-cached-permissions):
......
......@@ -1012,6 +1012,84 @@ FRAME defaults to the selected frame."
(window--side-check frame)
(window--atom-check frame))
;; Dumping frame/window contents.
(defun window--dump-window (&optional window erase)
"Dump WINDOW to buffer *window-frame-dump*.
WINDOW must be a valid window and defaults to the selected one.
Optional argument ERASE non-nil means erase *window-frame-dump*
before writing to it."
(setq window (window-normalize-window window))
(with-current-buffer (get-buffer-create "*window-frame-dump*")
(when erase (erase-buffer))
(insert
(format "%s parent: %s\n" window (window-parent window))
(format "pixel left: %s top: %s size: %s x %s new: %s\n"
(window-pixel-left window) (window-pixel-top window)
(window-size window t t) (window-size window nil t)
(window-new-pixel window))
(format "char left: %s top: %s size: %s x %s new: %s\n"
(window-left-column window) (window-top-line window)
(window-total-size window t) (window-total-size window)
(window-new-total window))
(format "normal: %s x %s new: %s\n"
(window-normal-size window t) (window-normal-size window)
(window-new-normal window)))
(when (window-live-p window)
(let ((fringes (window-fringes window))
(margins (window-margins window)))
(insert
(format "body pixel: %s x %s char: %s x %s\n"
(window-body-width window t) (window-body-height window t)
(window-body-width window) (window-body-height window))
(format "width left fringe: %s left margin: %s right margin: %s\n"
(car fringes) (or (car margins) 0) (or (cdr margins) 0))
(format "width right fringe: %s scroll-bar: %s divider: %s\n"
(cadr fringes)
(window-scroll-bar-width window)
(window-right-divider-width window))
(format "height header-line: %s mode-line: %s divider: %s\n"
(window-header-line-height window)
(window-mode-line-height window)
(window-bottom-divider-width window)))))
(insert "\n")))
(defun window--dump-frame (&optional window-or-frame)
"Dump WINDOW-OR-FRAME to buffer *window-frame-dump*.
WINDOW-OR-FRAME can be a frame or a window and defaults to the
selected frame. When WINDOW-OR-FRAME is a window, dump that
window's frame. The buffer *window-frame-dump* is erased before
dumping to it."
(interactive)
(let* ((window
(cond
((or (not window-or-frame)
(frame-live-p window-or-frame))
(frame-root-window window-or-frame))
((or (window-live-p window-or-frame)
(window-child window-or-frame))
window-or-frame)
(t
(frame-root-window))))
(frame (window-frame window)))
(with-current-buffer (get-buffer-create "*window-frame-dump*")
(erase-buffer)
(insert
(format "frame pixel: %s x %s cols/lines: %s x %s units: %s x %s\n"
(frame-pixel-width frame) (frame-pixel-height frame)
(frame-total-cols frame) (frame-text-lines frame) ; (frame-total-lines frame)
(frame-char-width frame) (frame-char-height frame))
(format "frame text pixel: %s x %s cols/lines: %s x %s\n"
(frame-text-width frame) (frame-text-height frame)
(frame-text-cols frame) (frame-text-lines frame))
(format "tool: %s scroll: %s fringe: %s border: %s right: %s bottom: %s\n\n"
(tool-bar-height frame t)
(frame-scroll-bar-width frame)
(frame-fringe-width frame)
(frame-border-width frame)
(frame-right-divider-width frame)
(frame-bottom-divider-width frame)))
(walk-window-tree 'window--dump-window frame t t))))
;;; Window sizes.
(defun window-total-size (&optional window horizontal round)
"Return the total height or width of WINDOW.
......@@ -1140,55 +1218,46 @@ of WINDOW."
;; windows such that the new (or resized) windows can get a
;; size less than the user-specified `window-min-height' and
;; `window-min-width'.
(let ((frame (window-frame window))
(fringes (window-fringes window))
(scroll-bars (window-scroll-bars window)))
(let* ((char-size (frame-char-size window t))
(fringes (window-fringes window))
(pixel-width
(+ (window-safe-min-size window t t)
(car fringes) (cadr fringes)
(window-scroll-bar-width window)
(window-right-divider-width window))))
(if pixelwise
(max
(+ (window-safe-min-size window t t)
(car fringes) (cadr fringes)
(cond
((memq (nth 2 scroll-bars) '(left right))
(nth 1 scroll-bars))
((memq (frame-parameter frame 'vertical-scroll-bars)
'(left right))
(frame-parameter frame 'scroll-bar-width))
(t 0)))
(if window-resize-pixelwise
pixel-width
;; Round up to next integral of columns.
(* (ceiling pixel-width char-size) char-size))
(if (window--size-ignore-p window ignore)
0
(window-min-pixel-width)))
(max
(+ window-safe-min-width
(ceiling (car fringes) (frame-char-width frame))
(ceiling (cadr fringes) (frame-char-width frame))
(cond
((memq (nth 2 scroll-bars) '(left right))
(nth 1 scroll-bars))
((memq (frame-parameter frame 'vertical-scroll-bars)
'(left right))
(ceiling (or (frame-parameter frame 'scroll-bar-width) 14)
(frame-char-width)))
(t 0)))
(ceiling pixel-width char-size)
(if (window--size-ignore-p window ignore)
0
window-min-width)))))
(pixelwise
(max
(+ (window-safe-min-size window nil t)
(window-header-line-height window)
(window-mode-line-height window))
(if (window--size-ignore-p window ignore)
0
(window-min-pixel-height))))
(t
;; For the minimum height of a window take any mode- or
;; header-line into account.
(max (+ window-safe-min-height
(if header-line-format 1 0)
(if mode-line-format 1 0))
(if (window--size-ignore-p window ignore)
0
window-min-height))))))))
((let ((char-size (frame-char-size window))
(pixel-height
(+ (window-safe-min-size window nil t)
(window-header-line-height window)
(window-mode-line-height window)
(window-bottom-divider-width window))))
(if pixelwise
(max
(if window-resize-pixelwise
pixel-height
;; Round up to next integral of lines.
(* (ceiling pixel-height char-size) char-size))
(if (window--size-ignore-p window ignore)
0
(window-min-pixel-height)))
(max (ceiling pixel-height char-size)
(if (window--size-ignore-p window ignore)
0
window-min-height))))))))))
(defun window-sizable (window delta &optional horizontal ignore pixelwise)
"Return DELTA if DELTA lines can be added to WINDOW.
......@@ -1323,9 +1392,10 @@ WINDOW can be resized in the desired direction. The function
(unless (eq sub window)
(setq delta
(min delta
(- (window-size sub horizontal pixelwise 'floor)
(window-min-size
sub horizontal ignore pixelwise)))))
(max (- (window-size sub horizontal pixelwise 'ceiling)
(window-min-size
sub horizontal ignore pixelwise))
0))))
(setq sub (window-right sub))))
(if noup
delta
......@@ -1400,9 +1470,11 @@ by which WINDOW can be shrunk."
(t
(setq delta
(+ delta
(- (window-size sub horizontal pixelwise 'floor)
(window-min-size
sub horizontal ignore pixelwise))))))
(max
(- (window-size sub horizontal pixelwise 'ceiling)
(window-min-size
sub horizontal ignore pixelwise))
0)))))
(setq sub (window-right sub))))
;; For an ortho-combination throw DELTA when at least one
;; child window is fixed-size.
......@@ -2317,9 +2389,11 @@ instead."
;; Otherwise, resize all other windows in the same combination.
(window--resize-siblings window delta horizontal ignore))
(when (window--resize-apply-p frame horizontal)
(window-resize-apply frame horizontal)
(window--pixel-to-total frame horizontal)
(run-window-configuration-change-hook frame)))
(if (window-resize-apply frame horizontal)
(progn
(window--pixel-to-total frame horizontal)
(run-window-configuration-change-hook frame))
(error "Failed to apply resizing %s" window))))
(t
(error "Cannot resize window %s" window)))))
......@@ -2560,7 +2634,7 @@ already set by this routine."
(setq best-value most-negative-fixnum)
(while sub
(when (and (consp (window-new-normal sub))
(not (zerop (car (window-new-normal sub))))
(not (<= (car (window-new-normal sub)) 0))
(> (cdr (window-new-normal sub)) best-value))
(setq best-window sub)
(setq best-value (cdr (window-new-normal sub))))
......@@ -2576,7 +2650,7 @@ already set by this routine."
best-window
(if (= (car (window-new-normal best-window)) best-delta)
'skip ; We can't shrink best-window any further.
(cons (1- (car (window-new-normal best-window)))
(cons (- (car (window-new-normal best-window)) best-delta)
(- (/ (float (window-new-pixel best-window))
parent-total)
(window-normal-size best-window horizontal))))))))
......@@ -2941,7 +3015,7 @@ move it as far as possible in the desired direction."
(window--resize-reset frame horizontal)
;; Try to enlarge LEFT first.
(setq this-delta (window--resizable
left delta horizontal nil nil nil nil pixelwise))
left delta horizontal nil 'after nil nil pixelwise))
(unless (zerop this-delta)
(window--resize-this-window
left this-delta horizontal nil t 'before
......@@ -2970,7 +3044,7 @@ move it as far as possible in the desired direction."
;; Try to enlarge RIGHT.
(setq this-delta
(window--resizable
right (- delta) horizontal nil nil nil nil pixelwise))
right (- delta) horizontal nil 'before nil nil pixelwise))
(unless (zerop this-delta)
(window--resize-this-window
right this-delta horizontal nil t 'after
......
2014-02-21 Martin Rudalics <rudalics@gmx.at>
* window.c (Fwindow_scroll_bar_width): New function.
2014-02-21 Paul Eggert <eggert@cs.ucla.edu>
Pacify GCC when configuring with --enable-gcc-warnings.
......
......@@ -974,6 +974,15 @@ WINDOW must be a live window and defaults to the selected one. */)
return (make_number (WINDOW_BOTTOM_DIVIDER_WIDTH (decode_live_window (window))));
}
DEFUN ("window-scroll-bar-width", Fwindow_scroll_bar_width,
Swindow_scroll_bar_width, 0, 1, 0,
doc: /* Return the width in pixels of WINDOW's vertical scrollbar.
WINDOW must be a live window and defaults to the selected one. */)
(Lisp_Object window)
{
return (make_number (WINDOW_SCROLL_BAR_AREA_WIDTH (decode_live_window (window))));
}
DEFUN ("window-hscroll", Fwindow_hscroll, Swindow_hscroll, 0, 1, 0,
doc: /* Return the number of columns by which WINDOW is scrolled from left margin.
WINDOW must be a live window and defaults to the selected one. */)
......@@ -7363,6 +7372,7 @@ pixelwise even if this option is nil. */);
defsubr (&Swindow_header_line_height);
defsubr (&Swindow_right_divider_width);
defsubr (&Swindow_bottom_divider_width);
defsubr (&Swindow_scroll_bar_width);
defsubr (&Swindow_inside_edges);
defsubr (&Swindow_inside_pixel_edges);
defsubr (&Swindow_inside_absolute_pixel_edges);
......
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