/* Window creation, deletion and examination for GNU Emacs.
Does not include redisplay.
- Copyright (C) 1985-1987, 1993-1998, 2000-2013 Free Software
+ Copyright (C) 1985-1987, 1993-1998, 2000-2014 Free Software
Foundation, Inc.
This file is part of GNU Emacs.
#include "buffer.h"
#include "keyboard.h"
#include "keymap.h"
+#include "menu.h"
#include "frame.h"
#include "window.h"
#include "commands.h"
static Lisp_Object Qwindow_pixel_to_total;
static Lisp_Object Qscroll_up, Qscroll_down, Qscroll_command;
static Lisp_Object Qsafe, Qabove, Qbelow, Qwindow_size, Qclone_of;
+static Lisp_Object Qfloor, Qceiling;
+static Lisp_Object Qwindow_point_insertion_type;
static int displayed_window_lines (struct window *);
static int count_windows (struct window *);
/* Incremented for each window created. */
static int sequence_number;
-/* Nonzero after init_window_once has finished. */
-static int window_initialized;
-
/* Hook to run when window config changes. */
static Lisp_Object Qwindow_configuration_change_hook;
-/* Used by the function window_scroll_pixel_based */
+/* Used by the function window_scroll_pixel_based. */
static int window_scroll_pixel_based_preserve_x;
static int window_scroll_pixel_based_preserve_y;
DEFUN ("select-window", Fselect_window, Sselect_window, 1, 2, 0,
doc: /* Select WINDOW which must be a live window.
Also make WINDOW's frame the selected frame and WINDOW that frame's
-selected window. In addition, make WINDOW's buffer current and set that
+selected window. In addition, make WINDOW's buffer current and set its
buffer's value of `point' to the value of WINDOW's `window-point'.
Return WINDOW.
front of the buffer list and do not make this window the most recently
selected one.
-Note that the main editor command loop sets the current buffer to the
-buffer of the selected window before each command. */)
+Run `buffer-list-update-hook' unless NORECORD is non-nil. Note that
+applications and internal routines often select a window temporarily for
+various purposes; mostly, to simplify coding. As a rule, such
+selections should be not recorded and therefore will not pollute
+`buffer-list-update-hook'. Selections that "really count" are those
+causing a visible change in the next redisplay of WINDOW's frame and
+should be always recorded. So if you think of running a function each
+time a window gets selected put it on `buffer-list-update-hook'.
+
+Also note that the main editor command loop sets the current buffer to
+the buffer of the selected window before each command. */)
(register Lisp_Object window, Lisp_Object norecord)
{
return select_window (window, norecord, 0);
}
\f
DEFUN ("window-pixel-width", Fwindow_pixel_width, Swindow_pixel_width, 0, 1, 0,
- doc: /* Return the pixel width of window WINDOW.
+ doc: /* Return the width of window WINDOW in pixels.
WINDOW must be a valid window and defaults to the selected one.
The return value includes the fringes and margins of WINDOW as well as
}
DEFUN ("window-pixel-height", Fwindow_pixel_height, Swindow_pixel_height, 0, 1, 0,
- doc: /* Return the pixel height of window WINDOW.
+ doc: /* Return the height of window WINDOW in pixels.
WINDOW must be a valid window and defaults to the selected one.
-The return value includes the mode line and header line, if any. If
-WINDOW is an internal window, its pixel height is the height of the
-screen areas spanned by its children. */)
+The return value includes the mode line and header line and the bottom
+divider, if any. If WINDOW is an internal window, its pixel height is
+the height of the screen areas spanned by its children. */)
(Lisp_Object window)
{
return make_number (decode_valid_window (window)->pixel_height);
}
-DEFUN ("window-total-height", Fwindow_total_height, Swindow_total_height, 0, 1, 0,
- doc: /* Return the total height, in lines, of window WINDOW.
+DEFUN ("window-total-height", Fwindow_total_height, Swindow_total_height, 0, 2, 0,
+ doc: /* Return the height of window WINDOW in lines.
WINDOW must be a valid window and defaults to the selected one.
-The return value includes the mode line and header line, if any.
-If WINDOW is an internal window, the total height is the height
-of the screen areas spanned by its children.
+The return value includes the heights of WINDOW's mode and header line
+and its bottom divider, if any. If WINDOW is an internal window, the
+total height is the height of the screen areas spanned by its children.
-On a graphical display, this total height is reported as an
-integer multiple of the default character height. */)
- (Lisp_Object window)
+If WINDOW's pixel height is not an integral multiple of its frame's
+character height, the number of lines occupied by WINDOW is rounded
+internally. This is done in a way such that, if WINDOW is a parent
+window, the sum of the total heights of all its children internally
+equals the total height of WINDOW.
+
+If the optional argument ROUND is `ceiling', return the smallest integer
+larger than WINDOW's pixel height divided by the character height of
+WINDOW's frame. ROUND `floor' means to return the largest integer
+smaller than WINDOW's pixel height divided by the character height of
+WINDOW's frame. Any other value of ROUND means to return the internal
+total height of WINDOW. */)
+ (Lisp_Object window, Lisp_Object round)
{
- return make_number (decode_valid_window (window)->total_lines);
+ struct window *w = decode_valid_window (window);
+
+ if (! EQ (round, Qfloor) && ! EQ (round, Qceiling))
+ return make_number (w->total_lines);
+ else
+ {
+ int unit = FRAME_LINE_HEIGHT (WINDOW_XFRAME (w));
+
+ return make_number (EQ (round, Qceiling)
+ ? ((w->pixel_height + unit - 1) /unit)
+ : (w->pixel_height / unit));
+ }
}
-DEFUN ("window-total-width", Fwindow_total_width, Swindow_total_width, 0, 1, 0,
- doc: /* Return the total width, in columns, of window WINDOW.
+DEFUN ("window-total-width", Fwindow_total_width, Swindow_total_width, 0, 2, 0,
+ doc: /* Return the total width of window WINDOW in columns.
WINDOW must be a valid window and defaults to the selected one.
-The return value includes any vertical dividers or scroll bars
-belonging to WINDOW. If WINDOW is an internal window, the total width
-is the width of the screen areas spanned by its children.
-
-On a graphical display, this total width is reported as an
-integer multiple of the default character width. */)
- (Lisp_Object window)
+The return value includes the widths of WINDOW's fringes, margins,
+scroll bars and its right divider, if any. If WINDOW is an internal
+window, the total width is the width of the screen areas spanned by its
+children.
+
+If WINDOW's pixel width is not an integral multiple of its frame's
+character width, the number of lines occupied by WINDOW is rounded
+internally. This is done in a way such that, if WINDOW is a parent
+window, the sum of the total widths of all its children internally
+equals the total width of WINDOW.
+
+If the optional argument ROUND is `ceiling', return the smallest integer
+larger than WINDOW's pixel width divided by the character width of
+WINDOW's frame. ROUND `floor' means to return the largest integer
+smaller than WINDOW's pixel width divided by the character width of
+WINDOW's frame. Any other value of ROUND means to return the internal
+total width of WINDOW. */)
+ (Lisp_Object window, Lisp_Object round)
{
- return make_number (decode_valid_window (window)->total_cols);
+ struct window *w = decode_valid_window (window);
+
+ if (! EQ (round, Qfloor) && ! EQ (round, Qceiling))
+ return make_number (w->total_cols);
+ else
+ {
+ int unit = FRAME_COLUMN_WIDTH (WINDOW_XFRAME (w));
+
+ return make_number (EQ (round, Qceiling)
+ ? ((w->pixel_width + unit - 1) /unit)
+ : (w->pixel_width / unit));
+ }
}
DEFUN ("window-new-total", Fwindow_new_total, Swindow_new_total, 0, 1, 0,
return make_number (decode_valid_window (window)->top_line);
}
-/* Return the number of lines of W's body. Don't count any mode or
- header line of W. */
-
+/* Return the number of lines/pixels of W's body. Don't count any mode
+ or header line or horizontal divider of W. Rounds down to nearest
+ integer when not working pixelwise. */
static int
window_body_height (struct window *w, bool pixelwise)
{
- int pixels = (w->pixel_height
- - WINDOW_BOTTOM_DIVIDER_WIDTH (w)
+ int height = (w->pixel_height
- WINDOW_HEADER_LINE_HEIGHT (w)
- - WINDOW_MODE_LINE_HEIGHT (w));
- int unit = FRAME_LINE_HEIGHT (WINDOW_XFRAME (w));
+ - WINDOW_MODE_LINE_HEIGHT (w)
+ - WINDOW_BOTTOM_DIVIDER_WIDTH (w));
- return pixelwise ? pixels : ((pixels + unit - 1) / unit);
+ /* Don't return a negative value. */
+ return max (pixelwise
+ ? height
+ : height / FRAME_LINE_HEIGHT (WINDOW_XFRAME (w)),
+ 0);
}
-/* Return the number of columns of W's body. Don't count columns
- occupied by the scroll bar or the vertical bar separating W from its
- right sibling. On window-systems don't count fringes or display
- margins either. */
+/* Return the number of columns/pixels of W's body. Don't count columns
+ occupied by the scroll bar or the divider/vertical bar separating W
+ from its right sibling or margins. On window-systems don't count
+ fringes either. Round down to nearest integer when not working
+ pixelwise. */
int
window_body_width (struct window *w, bool pixelwise)
{
struct frame *f = XFRAME (WINDOW_FRAME (w));
- int pixels = (w->pixel_width
- - WINDOW_RIGHT_DIVIDER_WIDTH (w)
- - (WINDOW_HAS_VERTICAL_SCROLL_BAR (w)
- ? WINDOW_SCROLL_BAR_AREA_WIDTH (w)
- : ((!FRAME_WINDOW_P (f)
- && !WINDOW_RIGHTMOST_P (w)
- && !WINDOW_RIGHT_DIVIDER_WIDTH (w)
- && !WINDOW_FULL_WIDTH_P (w))
- /* According to Eli this is either 1 or 0. */
- ? 1 : 0))
+ int width = (w->pixel_width
+ - WINDOW_RIGHT_DIVIDER_WIDTH (w)
+ - (WINDOW_HAS_VERTICAL_SCROLL_BAR (w)
+ ? WINDOW_SCROLL_BAR_AREA_WIDTH (w)
+ : ((!FRAME_WINDOW_P (f)
+ && !WINDOW_RIGHTMOST_P (w)
+ && !WINDOW_RIGHT_DIVIDER_WIDTH (w))
+ /* A vertical bar is either 1 or 0. */
+ ? 1 : 0))
- WINDOW_MARGINS_WIDTH (w)
- (FRAME_WINDOW_P (f)
? WINDOW_FRINGES_WIDTH (w)
: 0));
- int unit = FRAME_COLUMN_WIDTH (WINDOW_XFRAME (w));
- return pixelwise ? pixels : ((pixels + unit - 1) / unit);
+ /* Don't return a negative value. */
+ return max (pixelwise
+ ? width
+ : width / FRAME_COLUMN_WIDTH (WINDOW_XFRAME (w)),
+ 0);
}
DEFUN ("window-body-height", Fwindow_body_height, Swindow_body_height, 0, 2, 0,
- doc: /* Return the height, in lines, of WINDOW's text area.
-WINDOW must be a live window and defaults to the selected one.
-
-Optional argument PIXELWISE non-nil means return the height in pixels.
-
-The returned height does not include the mode line or header line. On a
-graphical display, the height is expressed as an integer multiple of the
-default character height if PIXELWISE is nil.
-
-If PIXELWISE is nil and a line at the bottom of the text area is only
-partially visible, that counts as a whole line; to exclude
-partially-visible lines, use `window-text-height'. */)
+ doc: /* Return the height of WINDOW's text area.
+WINDOW must be a live window and defaults to the selected one. Optional
+argument PIXELWISE non-nil means return the height of WINDOW's text area
+in pixels. The return value does not include the mode line or header
+line or any horizontal divider.
+
+If PIXELWISE is nil, return the largest integer smaller than WINDOW's
+pixel height divided by the character height of WINDOW's frame. This
+means that if a line at the bottom of the text area is only partially
+visible, that line is not counted. */)
(Lisp_Object window, Lisp_Object pixelwise)
{
return make_number (window_body_height (decode_live_window (window),
}
DEFUN ("window-body-width", Fwindow_body_width, Swindow_body_width, 0, 2, 0,
- doc: /* Return the width, in columns, of WINDOW's text area.
-WINDOW must be a live window and defaults to the selected one.
-
-Optional argument PIXELWISE non-nil means return the width in pixels.
-
-The return value does not include any vertical dividers, fringe or
-marginal areas, or scroll bars. On a graphical display, the width is
-expressed as an integer multiple of the default character width if
-PIXELWISE is nil.
-
-If PIXELWISE is nil and a column at the right of the text area is only
-partially visible, that counts as a whole column; to exclude
-partially-visible columns, use `window-text-width'. */)
+ doc: /* Return the width of WINDOW's text area.
+WINDOW must be a live window and defaults to the selected one. Optional
+argument PIXELWISE non-nil means return the width in pixels. The return
+value does not include any vertical dividers, fringes or marginal areas,
+or scroll bars.
+
+If PIXELWISE is nil, return the largest integer smaller than WINDOW's
+pixel width divided by the character width of WINDOW's frame. This
+means that if a column at the right of the text area is only partially
+visible, that column is not counted. */)
(Lisp_Object window, Lisp_Object pixelwise)
{
return make_number (window_body_width (decode_live_window (window),
DEFUN ("window-mode-line-height", Fwindow_mode_line_height,
Swindow_mode_line_height, 0, 1, 0,
- doc: /* Return the height in pixel of WINDOW's mode-line.
+ doc: /* Return the height in pixels of WINDOW's mode-line.
WINDOW must be a live window and defaults to the selected one. */)
(Lisp_Object window)
{
DEFUN ("window-header-line-height", Fwindow_header_line_height,
Swindow_header_line_height, 0, 1, 0,
- doc: /* Return the height in pixel of WINDOW's header-line.
+ doc: /* Return the height in pixels of WINDOW's header-line.
WINDOW must be a live window and defaults to the selected one. */)
(Lisp_Object window)
{
DEFUN ("window-right-divider-width", Fwindow_right_divider_width,
Swindow_right_divider_width, 0, 1, 0,
- doc: /* Return the width of WINDOW's right divider.
+ doc: /* Return the width in pixels of WINDOW's right divider.
WINDOW must be a live window and defaults to the selected one. */)
(Lisp_Object window)
{
DEFUN ("window-bottom-divider-width", Fwindow_bottom_divider_width,
Swindow_bottom_divider_width, 0, 1, 0,
- doc: /* Return the width of WINDOW's bottom divider.
+ doc: /* Return the width in pixels of WINDOW's bottom divider.
WINDOW must be a live window and defaults to the selected one. */)
(Lisp_Object window)
{
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. */)
if (y < top_y || y >= bottom_y || x < left_x || x >= right_x)
return ON_NOTHING;
- /* On vertical window divider (which prevails horizontal
- dividers)? */
- if (!WINDOW_RIGHTMOST_P (w)
- && WINDOW_RIGHT_DIVIDER_WIDTH (w)
- && x >= right_x - WINDOW_RIGHT_DIVIDER_WIDTH (w)
- && x <= right_x)
- return ON_RIGHT_DIVIDER;
- /* On the horizontal window divider? */
- else if (WINDOW_BOTTOM_DIVIDER_WIDTH (w)
- && y >= (bottom_y - WINDOW_BOTTOM_DIVIDER_WIDTH (w))
- && y <= bottom_y)
+ /* On the horizontal window divider (which prevails the vertical
+ divider)? */
+ if (WINDOW_BOTTOM_DIVIDER_WIDTH (w) > 0
+ && y >= (bottom_y - WINDOW_BOTTOM_DIVIDER_WIDTH (w))
+ && y <= bottom_y)
return ON_BOTTOM_DIVIDER;
+ /* On vertical window divider? */
+ else if (!WINDOW_RIGHTMOST_P (w)
+ && WINDOW_RIGHT_DIVIDER_WIDTH (w) > 0
+ && x >= right_x - WINDOW_RIGHT_DIVIDER_WIDTH (w)
+ && x <= right_x)
+ return ON_RIGHT_DIVIDER;
/* On the mode or header line? */
else if ((WINDOW_WANTS_MODELINE_P (w)
&& y >= (bottom_y
resize windows horizontally in case we're using toolkit scroll
bars. Note: If scrollbars are on the left, the window that
must be eventually resized is that on the left of WINDOW. */
- if ((WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w)
- && !WINDOW_LEFTMOST_P (w)
- && eabs (x - left_x) < grabbable_width)
- || (!WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w)
- && !WINDOW_RIGHTMOST_P (w)
- && eabs (x - right_x) < grabbable_width))
+ if ((WINDOW_RIGHT_DIVIDER_WIDTH (w) == 0)
+ && ((WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w)
+ && !WINDOW_LEFTMOST_P (w)
+ && eabs (x - left_x) < grabbable_width)
+ || (!WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w)
+ && !WINDOW_RIGHTMOST_P (w)
+ && eabs (x - right_x) < grabbable_width)))
return ON_VERTICAL_BORDER;
else
return part;
if (FRAME_WINDOW_P (f))
{
if (!w->pseudo_window_p
+ && WINDOW_RIGHT_DIVIDER_WIDTH (w) == 0
&& !WINDOW_HAS_VERTICAL_SCROLL_BAR (w)
&& !WINDOW_RIGHTMOST_P (w)
&& (eabs (x - right_x) < grabbable_width))
/* Need to say "x > right_x" rather than >=, since on character
terminals, the vertical line's x coordinate is right_x. */
else if (!w->pseudo_window_p
+ && WINDOW_RIGHT_DIVIDER_WIDTH (w) == 0
&& !WINDOW_RIGHTMOST_P (w)
/* Why check ux if we are not the rightmost window? Also
shouldn't a pseudo window always be rightmost? */
? (x >= left_x + WINDOW_LEFT_FRINGE_WIDTH (w))
: (x < left_x + lmargin_width)))
return ON_LEFT_MARGIN;
-
- return ON_LEFT_FRINGE;
+ else
+ return ON_LEFT_FRINGE;
}
if (x >= text_right)
? (x < right_x - WINDOW_RIGHT_FRINGE_WIDTH (w))
: (x >= right_x - rmargin_width)))
return ON_RIGHT_MARGIN;
-
- return ON_RIGHT_FRINGE;
+ else
+ return ON_RIGHT_FRINGE;
}
/* Everything special ruled out - must be on text area */
case ON_TEXT:
return x - window_box_left (w, TEXT_AREA);
+ case ON_HEADER_LINE:
+ case ON_MODE_LINE:
case ON_LEFT_FRINGE:
return x - left_x;
frame.
If COORDINATES are in the text portion of WINDOW,
the coordinates relative to the window are returned.
+If they are in the bottom divider of WINDOW, `bottom-divider' is returned.
+If they are in the right divider of WINDOW, `right-divider' is returned.
If they are in the mode line of WINDOW, `mode-line' is returned.
-If they are in the top mode line of WINDOW, `header-line' is returned.
+If they are in the header line of WINDOW, `header-line' is returned.
If they are in the left fringe of WINDOW, `left-fringe' is returned.
If they are in the right fringe of WINDOW, `right-fringe' is returned.
If they are on the border between WINDOW and its right sibling,
{
if (EQ (window, selected_window))
/* Preferably return the selected window. */
- RETURN_UNGCPRO (window);
+ return window;
else if (EQ (XWINDOW (window)->frame, selected_frame)
&& !frame_best_window_flag)
/* Prefer windows on the current frame (but don't
min_height = 2 * min_height;
min_height += FRAME_TOP_MARGIN_HEIGHT (frame);
+ min_height += FRAME_INTERNAL_BORDER_WIDTH (frame);
if (*height < min_height)
*height = min_height;
void
run_window_configuration_change_hook (struct frame *f)
{
- ptrdiff_t count = SPECPDL_INDEX ();
+ dynwind_begin ();
Lisp_Object frame, global_wcch
= Fdefault_value (Qwindow_configuration_change_hook);
XSETFRAME (frame, f);
- if (NILP (Vrun_hooks) || !NILP (inhibit_lisp_code))
+ if (NILP (Vrun_hooks) || !NILP (inhibit_lisp_code)) {
+ dynwind_end ();
return;
+ }
/* Use the right buffer. Matters when running the local hooks. */
if (current_buffer != XBUFFER (Fwindow_buffer (Qnil)))
if (!NILP (Flocal_variable_p (Qwindow_configuration_change_hook,
buffer)))
{
- ptrdiff_t inner_count = SPECPDL_INDEX ();
+ dynwind_begin ();
record_unwind_protect (select_window_norecord, selected_window);
select_window_norecord (window);
run_funs (Fbuffer_local_value (Qwindow_configuration_change_hook,
buffer));
- unbind_to (inner_count, Qnil);
+ dynwind_end ();
}
}
}
run_funs (global_wcch);
- unbind_to (count, Qnil);
+ dynwind_end ();
}
DEFUN ("run-window-configuration-change-hook", Frun_window_configuration_change_hook,
{
struct window *w = XWINDOW (window);
struct buffer *b = XBUFFER (buffer);
- ptrdiff_t count = SPECPDL_INDEX ();
+ dynwind_begin ();
bool samebuf = EQ (buffer, w->contents);
wset_buffer (w, buffer);
/* Maybe we could move this into the `if' but it's not obviously safe and
I doubt it's worth the trouble. */
wset_redisplay (w);
+ w->update_mode_line = true;
- /* We must select BUFFER for running the window-scroll-functions. */
- /* We can't check ! NILP (Vwindow_scroll_functions) here
- because that might itself be a local variable. */
- if (window_initialized)
- {
- record_unwind_current_buffer ();
- Fset_buffer (buffer);
- }
+ /* We must select BUFFER to run the window-scroll-functions and to look up
+ the buffer-local value of Vwindow_point_insertion_type. */
+ record_unwind_current_buffer ();
+ Fset_buffer (buffer);
XMARKER (w->pointm)->insertion_type = !NILP (Vwindow_point_insertion_type);
run_window_configuration_change_hook (XFRAME (WINDOW_FRAME (w)));
}
- unbind_to (count, Qnil);
+ dynwind_end ();
}
DEFUN ("set-window-buffer", Fset_window_buffer, Sset_window_buffer, 2, 3, 0,
/* Run temp-buffer-show-hook, with the chosen window selected
and its buffer current. */
{
- ptrdiff_t count = SPECPDL_INDEX ();
+ dynwind_begin ();
Lisp_Object prev_window, prev_buffer;
prev_window = selected_window;
XSETBUFFER (prev_buffer, old);
Fselect_window (window, Qt);
Fset_buffer (w->contents);
Frun_hooks (1, &Qtemp_buffer_show_hook);
- unbind_to (count, Qnil);
+ dynwind_end ();
}
}
}
}
}
else
- /* Bug#15957. */
- w->window_end_valid = 0;
+ {
+ adjust_window_margins (w);
+ /* Bug#15957. */
+ w->window_end_valid = 0;
+ }
}
r->left_col = 0;
r->top_line = FRAME_TOP_MARGIN (f);
window_resize_apply_total (r, !NILP (horizontal));
+ /* Handle the mini window. */
+ if (FRAME_HAS_MINIBUF_P (f) && !FRAME_MINIBUF_ONLY_P (f))
+ {
+ struct window *m = XWINDOW (f->minibuffer_window);
+
+ if (NILP (horizontal))
+ {
+ m->top_line = r->top_line + r->total_lines;
+ m->total_lines = XFASTINT (m->new_total);
+ }
+ else
+ m->total_cols = XFASTINT (m->new_total);
+ }
+
unblock_input ();
return Qt;
int old_pixel_size = horflag ? r->pixel_width : r->pixel_height;
/* new_size is the new size of the frame's root window. */
int new_size, new_pixel_size;
+ int unit = horflag ? FRAME_COLUMN_WIDTH (f) : FRAME_LINE_HEIGHT (f);
+ /* Don't let the size drop below one unit. This is more comforting
+ when we are called from x_set_tool_bar_lines since the latter may
+ have implicitly given us a zero or negative height. */
if (pixelwise)
{
- new_pixel_size
- = (horflag
- ? size
- : (size
- - FRAME_TOP_MARGIN_HEIGHT (f)
- - ((FRAME_HAS_MINIBUF_P (f) && !FRAME_MINIBUF_ONLY_P (f))
- ? FRAME_LINE_HEIGHT (f) : 0)));
- new_size = new_pixel_size / (horflag
- ? FRAME_COLUMN_WIDTH (f)
- : FRAME_LINE_HEIGHT (f));
+ /* Note: This does not include the size for internal borders
+ since these are not part of the frame's text area. */
+ new_pixel_size = max (horflag
+ ? size
+ : (size
+ - FRAME_TOP_MARGIN_HEIGHT (f)
+ - ((FRAME_HAS_MINIBUF_P (f)
+ && !FRAME_MINIBUF_ONLY_P (f))
+ ? FRAME_LINE_HEIGHT (f) : 0)),
+ unit);
+ new_size = new_pixel_size / unit;
}
else
{
- new_size= (horflag
- ? size
- : (size
- - FRAME_TOP_MARGIN (f)
- - ((FRAME_HAS_MINIBUF_P (f) && !FRAME_MINIBUF_ONLY_P (f))
- ? 1 : 0)));
- new_pixel_size = new_size * (horflag
- ? FRAME_COLUMN_WIDTH (f)
- : FRAME_LINE_HEIGHT (f));
+ new_size = max (horflag
+ ? size
+ : (size
+ - FRAME_TOP_MARGIN (f)
+ - ((FRAME_HAS_MINIBUF_P (f)
+ && !FRAME_MINIBUF_ONLY_P (f))
+ ? 1 : 0)),
+ 1);
+ new_pixel_size = new_size * unit;
}
r->top_line = FRAME_TOP_MARGIN (f);
r->pixel_top = FRAME_TOP_MARGIN_HEIGHT (f);
if (new_pixel_size == old_pixel_size)
- return;
+ ;
else if (WINDOW_LEAF_P (r))
/* For a leaf root window just set the size. */
if (horflag)
window_resize_apply (r, horflag);
window_pixel_to_total (r->frame, horflag ? Qt : Qnil);
}
+#if 0 /* Let's try without killing other windows. */
else
{
/* We lost. Delete all windows but the frame's
XWINDOW (root)->pixel_height = new_pixel_size;
}
}
+#endif /* 0 */
}
}
}
/* Grow the mini-window. */
w->pixel_top = r->pixel_top + r->pixel_height;
w->top_line = r->top_line + r->total_lines;
- w->pixel_height += pixel_height;
- w->total_lines += line_height;
+ /* Make sure the mini-window has always at least one line. */
+ w->pixel_height = max (w->pixel_height + pixel_height,
+ FRAME_LINE_HEIGHT (f));
+ w->total_lines = max (w->total_lines + line_height, 1);
/* Enforce full redisplay of the frame. */
/* FIXME: Shouldn't window--resize-root-window-vertically do it? */
/* If PT is not visible in WINDOW, move back one half of
the screen. Allow PT to be partially visible, otherwise
something like (scroll-down 1) with PT in the line before
- the partially visible one would recenter. */
+ the partially visible one would recenter. */
if (!pos_visible_p (w, PT, &x, &y, &rtop, &rbot, &rowh, &vpos))
{
}
else if (auto_window_vscroll_p)
{
- if (rtop || rbot) /* partially visible */
+ if (rtop || rbot) /* Partially visible. */
{
int px;
int dy = frame_line_height;
static void
scroll_command (Lisp_Object n, int direction)
{
- ptrdiff_t count = SPECPDL_INDEX ();
+ dynwind_begin ();
eassert (eabs (direction) == 1);
window_scroll (selected_window, XINT (n) * direction, 0, 0);
}
- unbind_to (count, Qnil);
+ dynwind_end ();
}
DEFUN ("scroll-up", Fscroll_up, Sscroll_up, 0, 1, "^P",
if (MINI_WINDOW_P (XWINDOW (selected_window))
&& !NILP (Vminibuf_scroll_window))
window = Vminibuf_scroll_window;
- /* If buffer is specified, scroll that buffer. */
- else if (!NILP (Vother_window_scroll_buffer))
+ /* If buffer is specified and live, scroll that buffer. */
+ else if (!NILP (Vother_window_scroll_buffer)
+ && BUFFERP (Vother_window_scroll_buffer)
+ && BUFFER_LIVE_P (XBUFFER (Vother_window_scroll_buffer)))
{
window = Fget_buffer_window (Vother_window_scroll_buffer, Qnil);
if (NILP (window))
{
Lisp_Object window;
struct window *w;
- ptrdiff_t count = SPECPDL_INDEX ();
+ dynwind_begin ();
window = Fother_window_for_scrolling ();
w = XWINDOW (window);
}
set_marker_both (w->pointm, Qnil, PT, PT_BYTE);
- unbind_to (count, Qnil);
+ dynwind_end ();
return Qnil;
}
{
struct window *w = XWINDOW (selected_window);
struct buffer *buf = XBUFFER (w->contents);
- struct buffer *obuf = current_buffer;
bool center_p = 0;
ptrdiff_t charpos, bytepos;
EMACS_INT iarg IF_LINT (= 0);
int this_scroll_margin;
+ if (buf != current_buffer)
+ error ("`recenter'ing a window that does not display current-buffer.");
+
/* If redisplay is suppressed due to an error, try again. */
- obuf->display_error_modiff = 0;
+ buf->display_error_modiff = 0;
if (NILP (arg))
{
center_p = 1;
}
- else if (CONSP (arg)) /* Just C-u. */
+ else if (CONSP (arg)) /* Just C-u. */
center_p = 1;
else
{
iarg = XINT (arg);
}
- set_buffer_internal (buf);
-
/* Do this after making BUF current
in case scroll_margin is buffer-local. */
- this_scroll_margin =
- max (0, min (scroll_margin, w->total_lines / 4));
+ this_scroll_margin
+ = max (0, min (scroll_margin, w->total_lines / 4));
/* Handle centering on a graphical frame specially. Such frames can
have variable-height lines and centering point on the basis of
h -= it.current_y;
else
{
- /* Last line has no newline */
+ /* Last line has no newline. */
h -= line_bottom_y (&it);
it.vpos++;
}
w->optional_new_start = 1;
- w->start_at_line_beg = (bytepos == BEGV_BYTE ||
- FETCH_BYTE (bytepos - 1) == '\n');
+ w->start_at_line_beg = (bytepos == BEGV_BYTE
+ || FETCH_BYTE (bytepos - 1) == '\n');
- set_buffer_internal (obuf);
return Qnil;
}
int frame_menu_bar_height, frame_tool_bar_height;
};
-/* This is saved as a Lisp_Vector */
+/* This is saved as a Lisp_Vector. */
struct saved_window
{
struct vectorlike_header header;
- Lisp_Object window, buffer, start, pointm, mark;
+ Lisp_Object window, buffer, start, pointm;
Lisp_Object pixel_left, pixel_top, pixel_height, pixel_width;
Lisp_Object left_col, top_line, total_cols, total_lines;
Lisp_Object normal_cols, normal_lines;
return XWINDOW (SAVED_WINDOW_N (saved_windows, 0)->window)->frame;
}
+/* From Chong's unwind_create_frame_1. */
+static void
+unwind_change_frame (Lisp_Object val)
+{
+ inhibit_lisp_code = val;
+}
+
DEFUN ("set-window-configuration", Fset_window_configuration,
Sset_window_configuration, 1, 1, 0,
doc: /* Set the configuration of windows and buffers as specified by CONFIGURATION.
int n_leaf_windows;
ptrdiff_t k;
int i, n;
-
+ ptrdiff_t count = SPECPDL_INDEX ();
/* If the frame has been resized since this window configuration was
made, we change the frame to the size specified in the
configuration, restore the configuration, and then resize it
call1 (Qrecord_window_buffer, window);
}
+ /* Don't run lisp in the following segment since the frame is in a
+ completely inconsistent state. See Bug#16207. */
+ record_unwind_protect (unwind_change_frame, inhibit_lisp_code);
+ inhibit_lisp_code = Qt;
/* The mouse highlighting code could get screwed up
if it runs during this. */
block_input ();
set_marker_restricted (w->start, p->start, w->contents);
set_marker_restricted (w->pointm, p->pointm,
w->contents);
- Fset_marker (BVAR (XBUFFER (w->contents), mark),
- p->mark, w->contents);
/* As documented in Fcurrent_window_configuration, don't
restore the location of point in the buffer which was
make_number (old_point),
XWINDOW (data->current_window)->contents);
+ /* In the following call to `select-window', prevent "swapping out
+ point" in the old selected window using the buffer that has
+ been restored into it. We already swapped out that point from
+ that window's old buffer.
+
+ Do not record the buffer here. We do that in a separate call
+ to select_window below. See also Bug#16207. */
+ select_window (data->current_window, Qt, 1);
+ BVAR (XBUFFER (XWINDOW (selected_window)->contents),
+ last_selected_window)
+ = selected_window;
+
if (NILP (data->focus_frame)
|| (FRAMEP (data->focus_frame)
&& FRAME_LIVE_P (XFRAME (data->focus_frame))))
adjust_frame_glyphs (f);
unblock_input ();
+ unbind_to (count, Qnil);
/* Scan dead buffer windows. */
for (; CONSP (dead_windows); dead_windows = XCDR (dead_windows))
delete_deletable_window (window);
}
- /* In the following call to `select-window', prevent "swapping out
- point" in the old selected window using the buffer that has
- been restored into it. We already swapped out that point from
- that window's old buffer. */
- /* This `select_window' calls record_buffer which calls Fdelq which
- invokes QUIT, so we do it here at the end rather than earlier,
- to minimize the risk of interrupting the Fset_window_configuration
- in an inconsistent state (e.g. before frame-focus redirection is
- canceled). */
- select_window (data->current_window, Qnil, 1);
- BVAR (XBUFFER (XWINDOW (selected_window)->contents),
- last_selected_window)
- = selected_window;
+ /* Record the selected window's buffer here. The window should
+ already be the selected one from the call above. */
+ select_window (data->current_window, Qnil, 0);
/* Fselect_window will have made f the selected frame, so we
reselect the proper frame here. Fhandle_switch_frame will change the
else
p->pointm = Fcopy_marker (w->pointm, Qnil);
XMARKER (p->pointm)->insertion_type
- = !NILP (Vwindow_point_insertion_type);
+ = !NILP (buffer_local_value /* Don't signal error if void. */
+ (Qwindow_point_insertion_type, w->contents));
p->start = Fcopy_marker (w->start, Qnil);
p->start_at_line_beg = w->start_at_line_beg ? Qt : Qnil;
-
- tem = BVAR (XBUFFER (w->contents), mark);
- p->mark = Fcopy_marker (tem, Qnil);
}
else
{
p->pointm = Qnil;
p->start = Qnil;
- p->mark = Qnil;
p->start_at_line_beg = Qnil;
}
- if (NILP (w->parent))
- p->parent = Qnil;
- else
- p->parent = XWINDOW (w->parent)->temslot;
-
- if (NILP (w->prev))
- p->prev = Qnil;
- else
- p->prev = XWINDOW (w->prev)->temslot;
+ p->parent = NILP (w->parent) ? Qnil : XWINDOW (w->parent)->temslot;
+ p->prev = NILP (w->prev) ? Qnil : XWINDOW (w->prev)->temslot;
if (WINDOWP (w->contents))
i = save_window_save (w->contents, vector, i);
doc: /* Return an object representing the current window configuration of FRAME.
If FRAME is nil or omitted, use the selected frame.
This describes the number of windows, their sizes and current buffers,
-and for each displayed buffer, where display starts, and the positions of
-point and mark. An exception is made for point in the current buffer:
+and for each displayed buffer, where display starts, and the position of
+point. An exception is made for point in the current buffer:
its value is -not- saved.
This also records the currently selected frame, and FRAME's focus
redirection (see `redirect-frame-focus'). The variable
adjust_window_margins (w);
clear_glyph_matrix (w->current_matrix);
w->window_end_valid = 0;
+ windows_or_buffers_changed = 30;
wset_redisplay (w);
adjust_frame_glyphs (XFRAME (WINDOW_FRAME (w)));
}
{
struct window *w = decode_live_window (window);
- return list4 (make_number ((WINDOW_CONFIG_SCROLL_BAR_WIDTH (w)
- ? WINDOW_CONFIG_SCROLL_BAR_WIDTH (w)
- : WINDOW_SCROLL_BAR_AREA_WIDTH (w))),
+ return list4 (make_number (WINDOW_SCROLL_BAR_AREA_WIDTH (w)),
make_number (WINDOW_SCROLL_BAR_COLS (w)),
w->vertical_scroll_bar_type, Qnil);
}
|| !EQ (sw1->min_hscroll, sw2->min_hscroll)
|| !EQ (sw1->start_at_line_beg, sw2->start_at_line_beg)
|| NILP (Fequal (sw1->start, sw2->start))
- || NILP (Fequal (sw1->pointm, sw2->pointm))
- || NILP (Fequal (sw1->mark, sw2->mark))))
+ || NILP (Fequal (sw1->pointm, sw2->pointm))))
|| !EQ (sw1->left_margin_cols, sw2->left_margin_cols)
|| !EQ (sw1->right_margin_cols, sw2->right_margin_cols)
|| !EQ (sw1->left_fringe_width, sw2->left_fringe_width)
DEFUN ("compare-window-configurations", Fcompare_window_configurations,
Scompare_window_configurations, 2, 2, 0,
doc: /* Compare two window configurations as regards the structure of windows.
-This function ignores details such as the values of point and mark
+This function ignores details such as the values of point
and scrolling positions. */)
(Lisp_Object x, Lisp_Object y)
{
Vterminal_frame = selected_frame;
minibuf_window = f->minibuffer_window;
selected_window = f->selected_window;
-
- window_initialized = 1;
}
void
void
syms_of_window (void)
{
+#include "window.x"
+
DEFSYM (Qscroll_up, "scroll-up");
DEFSYM (Qscroll_down, "scroll-down");
DEFSYM (Qscroll_command, "scroll-command");
DEFSYM (Qabove, "above");
DEFSYM (Qbelow, "below");
DEFSYM (Qclone_of, "clone-of");
+ DEFSYM (Qfloor, "floor");
+ DEFSYM (Qceiling, "ceiling");
staticpro (&Vwindow_list);
mode_line_in_non_selected_windows = 1;
DEFVAR_LISP ("other-window-scroll-buffer", Vother_window_scroll_buffer,
- doc: /* If non-nil, this is a buffer and \\[scroll-other-window] should scroll its window. */);
+ doc: /* If this is a live buffer, \\[scroll-other-window] should scroll its window. */);
Vother_window_scroll_buffer = Qnil;
DEFVAR_BOOL ("auto-window-vscroll", auto_window_vscroll_p,
DEFVAR_LISP ("window-point-insertion-type", Vwindow_point_insertion_type,
doc: /* Type of marker to use for `window-point'. */);
Vwindow_point_insertion_type = Qnil;
+ DEFSYM (Qwindow_point_insertion_type, "window_point_insertion_type");
DEFVAR_LISP ("window-configuration-change-hook",
Vwindow_configuration_change_hook,
Vwindow_persistent_parameters = list1 (Fcons (Qclone_of, Qt));
DEFVAR_BOOL ("window-resize-pixelwise", window_resize_pixelwise,
- doc: /* Non-nil means resizing windows works pixelwise.
-Functions currently affected by this option are `split-window',
-`maximize-window', `minimize-window', `fit-window-to-buffer' and
-`fit-frame-to-buffer' and all functions symmetrically resizing a
-parent window.
+ doc: /* Non-nil means resize windows pixelwise.
+This currently affects the functions: `split-window', `maximize-window',
+`minimize-window', `fit-window-to-buffer' and `fit-frame-to-buffer', and
+all functions that symmetrically resize a parent window.
Note that when a frame's pixel size is not a multiple of the
frame's character size, at least one window may get resized
pixelwise even if this option is nil. */);
window_resize_pixelwise = 0;
-
- defsubr (&Sselected_window);
- defsubr (&Sminibuffer_window);
- defsubr (&Swindow_minibuffer_p);
- defsubr (&Swindowp);
- defsubr (&Swindow_valid_p);
- defsubr (&Swindow_live_p);
- defsubr (&Swindow_frame);
- defsubr (&Sframe_root_window);
- defsubr (&Sframe_first_window);
- defsubr (&Sframe_selected_window);
- defsubr (&Sset_frame_selected_window);
- defsubr (&Spos_visible_in_window_p);
- defsubr (&Swindow_line_height);
- defsubr (&Swindow_buffer);
- defsubr (&Swindow_parent);
- defsubr (&Swindow_top_child);
- defsubr (&Swindow_left_child);
- defsubr (&Swindow_next_sibling);
- defsubr (&Swindow_prev_sibling);
- defsubr (&Swindow_combination_limit);
- defsubr (&Sset_window_combination_limit);
- defsubr (&Swindow_use_time);
- defsubr (&Swindow_pixel_width);
- defsubr (&Swindow_pixel_height);
- defsubr (&Swindow_total_width);
- defsubr (&Swindow_total_height);
- defsubr (&Swindow_normal_size);
- defsubr (&Swindow_new_pixel);
- defsubr (&Swindow_new_total);
- defsubr (&Swindow_new_normal);
- defsubr (&Swindow_pixel_left);
- defsubr (&Swindow_pixel_top);
- defsubr (&Swindow_left_column);
- defsubr (&Swindow_top_line);
- defsubr (&Sset_window_new_pixel);
- defsubr (&Sset_window_new_total);
- defsubr (&Sset_window_new_normal);
- defsubr (&Swindow_resize_apply);
- defsubr (&Swindow_resize_apply_total);
- defsubr (&Swindow_body_height);
- defsubr (&Swindow_body_width);
- defsubr (&Swindow_hscroll);
- defsubr (&Sset_window_hscroll);
- defsubr (&Swindow_redisplay_end_trigger);
- defsubr (&Sset_window_redisplay_end_trigger);
- defsubr (&Swindow_edges);
- defsubr (&Swindow_pixel_edges);
- defsubr (&Swindow_absolute_pixel_edges);
- defsubr (&Swindow_mode_line_height);
- defsubr (&Swindow_header_line_height);
- defsubr (&Swindow_right_divider_width);
- defsubr (&Swindow_bottom_divider_width);
- defsubr (&Swindow_inside_edges);
- defsubr (&Swindow_inside_pixel_edges);
- defsubr (&Swindow_inside_absolute_pixel_edges);
- defsubr (&Scoordinates_in_window_p);
- defsubr (&Swindow_at);
- defsubr (&Swindow_point);
- defsubr (&Swindow_start);
- defsubr (&Swindow_end);
- defsubr (&Sset_window_point);
- defsubr (&Sset_window_start);
- defsubr (&Swindow_dedicated_p);
- defsubr (&Sset_window_dedicated_p);
- defsubr (&Swindow_display_table);
- defsubr (&Sset_window_display_table);
- defsubr (&Snext_window);
- defsubr (&Sprevious_window);
- defsubr (&Sget_buffer_window);
- defsubr (&Sdelete_other_windows_internal);
- defsubr (&Sdelete_window_internal);
- defsubr (&Sresize_mini_window_internal);
- defsubr (&Sset_window_buffer);
- defsubr (&Srun_window_configuration_change_hook);
- defsubr (&Srun_window_scroll_functions);
- defsubr (&Sselect_window);
- defsubr (&Sforce_window_update);
- defsubr (&Ssplit_window_internal);
- defsubr (&Sscroll_up);
- defsubr (&Sscroll_down);
- defsubr (&Sscroll_left);
- defsubr (&Sscroll_right);
- defsubr (&Sother_window_for_scrolling);
- defsubr (&Sscroll_other_window);
- defsubr (&Sminibuffer_selected_window);
- defsubr (&Srecenter);
- defsubr (&Swindow_text_width);
- defsubr (&Swindow_text_height);
- defsubr (&Smove_to_window_line);
- defsubr (&Swindow_configuration_p);
- defsubr (&Swindow_configuration_frame);
- defsubr (&Sset_window_configuration);
- defsubr (&Scurrent_window_configuration);
- defsubr (&Sset_window_margins);
- defsubr (&Swindow_margins);
- defsubr (&Sset_window_fringes);
- defsubr (&Swindow_fringes);
- defsubr (&Sset_window_scroll_bars);
- defsubr (&Swindow_scroll_bars);
- defsubr (&Swindow_vscroll);
- defsubr (&Sset_window_vscroll);
- defsubr (&Scompare_window_configurations);
- defsubr (&Swindow_list);
- defsubr (&Swindow_list_1);
- defsubr (&Swindow_prev_buffers);
- defsubr (&Sset_window_prev_buffers);
- defsubr (&Swindow_next_buffers);
- defsubr (&Sset_window_next_buffers);
- defsubr (&Swindow_parameters);
- defsubr (&Swindow_parameter);
- defsubr (&Sset_window_parameter);
}
void
HCoop / bpt / emacs.git / blobdiff