/* Window definitions for GNU Emacs.
- Copyright (C) 1985, 1986, 1992 Free Software Foundation, Inc.
+ Copyright (C) 1985, 1986, 1993, 1995, 1997, 1998, 1999, 2000, 2001,
+ 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
This file is part of GNU Emacs.
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
+#ifndef WINDOW_H_INCLUDED
+#define WINDOW_H_INCLUDED
+
+#include "dispextern.h"
+
+extern Lisp_Object Qleft, Qright;
/* Windows are allocated as if they were vectors, but then the
Lisp data type is changed to Lisp_Window. They are garbage
minibuffer, prev of the minibuf window is the root window and next of
the root window is the minibuf window. On minibufferless screens or
minibuffer-only screens, the root window and the minibuffer window are
-one and the same, so its prev and next members are nil. */
+one and the same, so its prev and next members are nil.
+
+A dead window has its buffer, hchild, and vchild windows all nil. */
+struct cursor_pos
+{
+ /* Pixel position. These are always window relative. */
+ int x, y;
+
+ /* Glyph matrix position. */
+ int hpos, vpos;
+};
struct window
{
/* The first two fields are really the header of a vector */
/* The window code does not refer to them. */
- int size;
+ EMACS_INT size;
struct Lisp_Vector *vec_next;
/* The frame this window is on. */
Lisp_Object frame;
Lisp_Object parent;
/* The upper left corner coordinates of this window,
as integers relative to upper left corner of frame = 0, 0 */
- Lisp_Object left;
- Lisp_Object top;
+ Lisp_Object left_col;
+ Lisp_Object top_line;
/* The size of the window */
- Lisp_Object height;
- Lisp_Object width;
+ Lisp_Object total_lines;
+ Lisp_Object total_cols;
/* The buffer displayed in this window */
/* Of the fields vchild, hchild and buffer, only one is non-nil. */
Lisp_Object buffer;
/* Non-nil means next redisplay must use the value of start
set up for it in advance. Set by scrolling commands. */
Lisp_Object force_start;
+ /* Non-nil means we have explicitly changed the value of start,
+ but that the next redisplay is not obliged to use the new value.
+ This is used in Fdelete_other_windows to force a call to
+ Vwindow_scroll_functions; also by Frecenter with argument. */
+ Lisp_Object optional_new_start;
/* Number of columns display within the window is scrolled to the left. */
Lisp_Object hscroll;
+ /* Minimum hscroll for automatic hscrolling. This is the value
+ the user has set, by set-window-hscroll for example. */
+ Lisp_Object min_hscroll;
/* Number saying how recently window was selected */
Lisp_Object use_time;
/* Unique number of window assigned when it was created */
Lisp_Object temslot;
/* text.modified of displayed buffer as of last time display completed */
Lisp_Object last_modified;
+ /* BUF_OVERLAY_MODIFIED of displayed buffer as of last complete update. */
+ Lisp_Object last_overlay_modified;
/* Value of point at that time */
Lisp_Object last_point;
-/* The rest are currently not used or only half used */
- /* Frame coords of point at that time */
- Lisp_Object last_point_x;
- Lisp_Object last_point_y;
+ /* Non-nil if the buffer was "modified" when the window
+ was last updated. */
+ Lisp_Object last_had_star;
+ /* This window's vertical scroll bar. This field is only for use
+ by the window-system-dependent code which implements the
+ scroll bars; it can store anything it likes here. If this
+ window is newly created and we haven't displayed a scroll bar in
+ it yet, or if the frame doesn't have any scroll bars, this is nil. */
+ Lisp_Object vertical_scroll_bar;
+
+ /* Width of left and right marginal areas. A value of nil means
+ no margin. */
+ Lisp_Object left_margin_cols, right_margin_cols;
+
+ /* Width of left and right fringes.
+ A value of nil or t means use frame values. */
+ Lisp_Object left_fringe_width, right_fringe_width;
+
+ /* Non-nil means fringes are drawn outside display margins;
+ othersize draw them between margin areas and text. */
+ Lisp_Object fringes_outside_margins;
+
+ /* Pixel width of scroll bars.
+ A value of nil or t means use frame values. */
+ Lisp_Object scroll_bar_width;
+ /* Type of vertical scroll bar. A value of nil means
+ no scroll bar. A value of t means use frame value. */
+ Lisp_Object vertical_scroll_bar_type;
+
/* Frame coords of mark as of last time display completed */
/* May be nil if mark does not exist or was not on frame */
Lisp_Object last_mark_x;
Lisp_Object last_mark_y;
- /* Number of characters in buffer past bottom of window,
- as of last redisplay that finished. */
+ /* Z - the buffer position of the last glyph in the current matrix
+ of W. Only valid if WINDOW_END_VALID is not nil. */
Lisp_Object window_end_pos;
+ /* Glyph matrix row of the last glyph in the current matrix
+ of W. Only valid if WINDOW_END_VALID is not nil. */
+ Lisp_Object window_end_vpos;
/* t if window_end_pos is truly valid.
This is nil if nontrivial redisplay is preempted
since in that case the frame image that window_end_pos
did not get onto the frame. */
Lisp_Object window_end_valid;
- /* Vertical position (relative to window top) of that buffer position
- of the first of those characters */
- Lisp_Object window_end_vpos;
/* Non-nil means must regenerate mode line of this window */
Lisp_Object update_mode_line;
/* Non-nil means current value of `start'
Lisp_Object display_table;
/* Non-nil means window is marked as dedicated. */
Lisp_Object dedicated;
- };
+ /* Line number and position of a line somewhere above the
+ top of the screen. */
+ /* If this field is nil, it means we don't have a base line. */
+ Lisp_Object base_line_number;
+ /* If this field is nil, it means we don't have a base line.
+ If it is a buffer, it means don't display the line number
+ as long as the window shows that buffer. */
+ Lisp_Object base_line_pos;
+ /* If we have highlighted the region (or any part of it),
+ this is the mark position that we used, as an integer. */
+ Lisp_Object region_showing;
+ /* The column number currently displayed in this window's mode line,
+ or nil if column numbers are not being displayed. */
+ Lisp_Object column_number_displayed;
+ /* If redisplay in this window goes beyond this buffer position,
+ must run the redisplay-end-trigger-hook. */
+ Lisp_Object redisplay_end_trigger;
+ /* Non-nil means don't delete this window for becoming "too small". */
+ Lisp_Object too_small_ok;
+
+ /* Original window height and top before mini-window was
+ enlarged. */
+ Lisp_Object orig_total_lines, orig_top_line;
+
+ /* No Lisp data may follow below this point without changing
+ mark_object in alloc.c. The member current_matrix must be the
+ first non-Lisp member. */
+
+ /* Glyph matrices. */
+ struct glyph_matrix *current_matrix;
+ struct glyph_matrix *desired_matrix;
+
+ /* Scaling factor for the glyph_matrix size calculation in this window.
+ Used if window contains many small images or uses proportional fonts,
+ as the normal may yield a matrix which is too small. */
+ int nrows_scale_factor, ncols_scale_factor;
+
+ /* Cursor position as of last update that completed without
+ pause. This is the position of last_point. */
+ struct cursor_pos last_cursor;
+
+ /* Intended cursor position. This is a position within the
+ glyph matrix. */
+ struct cursor_pos cursor;
+
+ /* Where the cursor actually is. */
+ struct cursor_pos phys_cursor;
+
+ /* Cursor type and width of last cursor drawn on the window.
+ Used for X and w32 frames; -1 initially. */
+ int phys_cursor_type, phys_cursor_width;
+
+ /* This is handy for undrawing the cursor. */
+ int phys_cursor_ascent, phys_cursor_height;
+
+ /* Non-zero means the cursor is currently displayed. This can be
+ set to zero by functions overpainting the cursor image. */
+ unsigned phys_cursor_on_p : 1;
+
+ /* 0 means cursor is logically on, 1 means it's off. Used for
+ blinking cursor. */
+ unsigned cursor_off_p : 1;
+
+ /* Value of cursor_off_p as of the last redisplay. */
+ unsigned last_cursor_off_p : 1;
+
+ /* 1 means desired matrix has been build and window must be
+ updated in update_frame. */
+ unsigned must_be_updated_p : 1;
+
+ /* Flag indicating that this window is not a real one.
+ Currently only used for menu bar windows of frames. */
+ unsigned pseudo_window_p : 1;
+
+ /* Amount by which lines of this window are scrolled in
+ y-direction (smooth scrolling). */
+ int vscroll;
+
+ /* Z_BYTE - the buffer position of the last glyph in the current matrix
+ of W. Only valid if WINDOW_END_VALID is not nil. */
+ int window_end_bytepos;
+
+ /* 1 means the window start of this window is frozen and may not
+ be changed during redisplay. If point is not in the window,
+ accept that. */
+ unsigned frozen_window_start_p : 1;
+};
/* 1 if W is a minibuffer window. */
-#define MINI_WINDOW_P(W) (!EQ ((W)->mini_p, Qnil))
+#define MINI_WINDOW_P(W) (!NILP ((W)->mini_p))
+
+/* General window layout:
+
+ LEFT_EDGE_COL RIGHT_EDGE_COL
+ | |
+ | |
+ | BOX_LEFT_EDGE_COL |
+ | | BOX_RIGHT_EDGE_COL |
+ | | | |
+ v v v v
+ <-><-><---><-----------><---><-><->
+ ^ ^ ^ ^ ^ ^ ^
+ | | | | | | |
+ | | | | | | +-- RIGHT_SCROLL_BAR_COLS
+ | | | | | +----- RIGHT_FRINGE_WIDTH
+ | | | | +--------- RIGHT_MARGIN_COLS
+ | | | |
+ | | | +------------------ TEXT_AREA_COLS
+ | | |
+ | | +--------------------------- LEFT_MARGIN_COLS
+ | +------------------------------- LEFT_FRINGE_WIDTH
+ +---------------------------------- LEFT_SCROLL_BAR_COLS
+
+*/
+
+
+/* A handy macro. */
+
+#define WINDOW_XFRAME(W) \
+ (XFRAME (WINDOW_FRAME ((W))))
+
+/* Return the canonical column width of the frame of window W. */
+
+#define WINDOW_FRAME_COLUMN_WIDTH(W) \
+ (FRAME_COLUMN_WIDTH (WINDOW_XFRAME ((W))))
+
+/* Return the canonical column width of the frame of window W. */
+
+#define WINDOW_FRAME_LINE_HEIGHT(W) \
+ (FRAME_LINE_HEIGHT (WINDOW_XFRAME ((W))))
+
+
+/* Return the frame width in canonical column units.
+ This includes scroll bars and fringes. */
+
+#define WINDOW_TOTAL_COLS(W) \
+ (XFASTINT ((W)->total_cols))
+
+/* Return the frame height in canonical line units.
+ This includes header and mode lines, if any. */
+
+#define WINDOW_TOTAL_LINES(W) \
+ (XFASTINT ((W)->total_lines))
+
+
+/* Return the total pixel width of window W. */
+
+#define WINDOW_TOTAL_WIDTH(W) \
+ (WINDOW_TOTAL_COLS (W) * WINDOW_FRAME_COLUMN_WIDTH (W))
+
+/* Return the total pixel height of window W. */
+
+#define WINDOW_TOTAL_HEIGHT(W) \
+ (WINDOW_TOTAL_LINES (W) * WINDOW_FRAME_LINE_HEIGHT (W))
+
+
+/* Return the canonical frame column at which window W starts.
+ This includes a left-hand scroll bar, if any. */
+
+#define WINDOW_LEFT_EDGE_COL(W) \
+ (XFASTINT ((W)->left_col))
+
+/* Return the canonical frame column before which window W ends.
+ This includes a right-hand scroll bar, if any. */
+
+#define WINDOW_RIGHT_EDGE_COL(W) \
+ (WINDOW_LEFT_EDGE_COL (W) + WINDOW_TOTAL_COLS (W))
+
+/* Return the canonical frame line at which window W starts.
+ This includes a header line, if any. */
+
+#define WINDOW_TOP_EDGE_LINE(W) \
+ (XFASTINT ((W)->top_line))
+
+/* Return the canonical frame line before which window W ends.
+ This includes a mode line, if any. */
+
+#define WINDOW_BOTTOM_EDGE_LINE(W) \
+ (WINDOW_TOP_EDGE_LINE (W) + WINDOW_TOTAL_LINES (W))
+
+
+/* Return the frame x-position at which window W starts.
+ This includes a left-hand scroll bar, if any. */
+
+#define WINDOW_LEFT_EDGE_X(W) \
+ (FRAME_INTERNAL_BORDER_WIDTH (WINDOW_XFRAME (W)) \
+ + WINDOW_LEFT_EDGE_COL (W) * WINDOW_FRAME_COLUMN_WIDTH (W))
+
+/* Return the frame x- position before which window W ends.
+ This includes a right-hand scroll bar, if any. */
+
+#define WINDOW_RIGHT_EDGE_X(W) \
+ (FRAME_INTERNAL_BORDER_WIDTH (WINDOW_XFRAME (W)) \
+ + WINDOW_RIGHT_EDGE_COL (W) * WINDOW_FRAME_COLUMN_WIDTH (W))
+
+/* Return the frame y-position at which window W starts.
+ This includes a header line, if any. */
+
+#define WINDOW_TOP_EDGE_Y(W) \
+ (FRAME_INTERNAL_BORDER_WIDTH (WINDOW_XFRAME (W)) \
+ + WINDOW_TOP_EDGE_LINE (W) * WINDOW_FRAME_LINE_HEIGHT (W))
+
+/* Return the frame y-position before which window W ends.
+ This includes a mode line, if any. */
+
+#define WINDOW_BOTTOM_EDGE_Y(W) \
+ (FRAME_INTERNAL_BORDER_WIDTH (WINDOW_XFRAME (W)) \
+ + WINDOW_BOTTOM_EDGE_LINE (W) * WINDOW_FRAME_LINE_HEIGHT (W))
+
+
+/* 1 if window W takes up the full width of its frame. */
+
+#define WINDOW_FULL_WIDTH_P(W) \
+ (WINDOW_TOTAL_COLS (W) == FRAME_TOTAL_COLS (WINDOW_XFRAME (W)))
+
+/* 1 if window W's has no other windows to its left in its frame. */
+
+#define WINDOW_LEFTMOST_P(W) \
+ (WINDOW_LEFT_EDGE_COL (W) == 0)
+
+/* 1 if window W's has no other windows to its right in its frame. */
+
+#define WINDOW_RIGHTMOST_P(W) \
+ (WINDOW_RIGHT_EDGE_COL (W) == FRAME_TOTAL_COLS (WINDOW_XFRAME (W)))
+
+
+/* Return the frame column at which the text (or left fringe) in
+ window W starts. This is different from the `LEFT_EDGE' because it
+ does not include a left-hand scroll bar if any. */
+
+#define WINDOW_BOX_LEFT_EDGE_COL(W) \
+ (WINDOW_LEFT_EDGE_COL (W) \
+ + WINDOW_LEFT_SCROLL_BAR_COLS (W))
+
+/* Return the window column before which the text in window W ends.
+ This is different from WINDOW_RIGHT_EDGE_COL because it does not
+ include a scroll bar or window-separating line on the right edge. */
+
+#define WINDOW_BOX_RIGHT_EDGE_COL(W) \
+ (WINDOW_RIGHT_EDGE_COL (W) \
+ - WINDOW_RIGHT_SCROLL_BAR_COLS (W))
+
+
+/* Return the frame position at which the text (or left fringe) in
+ window W starts. This is different from the `LEFT_EDGE' because it
+ does not include a left-hand scroll bar if any. */
+
+#define WINDOW_BOX_LEFT_EDGE_X(W) \
+ (FRAME_INTERNAL_BORDER_WIDTH (WINDOW_XFRAME (W)) \
+ + WINDOW_BOX_LEFT_EDGE_COL (W) * WINDOW_FRAME_COLUMN_WIDTH (W))
+
+/* Return the window column before which the text in window W ends.
+ This is different from WINDOW_RIGHT_EDGE_COL because it does not
+ include a scroll bar or window-separating line on the right edge. */
+
+#define WINDOW_BOX_RIGHT_EDGE_X(W) \
+ (FRAME_INTERNAL_BORDER_WIDTH (WINDOW_XFRAME (W)) \
+ + WINDOW_BOX_RIGHT_EDGE_COL (W) * WINDOW_FRAME_COLUMN_WIDTH (W))
+
+
+/* Width of left margin area in columns. */
+
+#define WINDOW_LEFT_MARGIN_COLS(W) \
+ (NILP ((W)->left_margin_cols) \
+ ? 0 \
+ : XINT ((W)->left_margin_cols))
+
+/* Width of right marginal area in columns. */
+
+#define WINDOW_RIGHT_MARGIN_COLS(W) \
+ (NILP ((W)->right_margin_cols) \
+ ? 0 \
+ : XINT ((W)->right_margin_cols))
+
+/* Width of left margin area in pixels. */
+
+#define WINDOW_LEFT_MARGIN_WIDTH(W) \
+ (NILP ((W)->left_margin_cols) \
+ ? 0 \
+ : (XINT ((W)->left_margin_cols) \
+ * WINDOW_FRAME_COLUMN_WIDTH (W)))
+
+/* Width of right marginal area in pixels. */
+
+#define WINDOW_RIGHT_MARGIN_WIDTH(W) \
+ (NILP ((W)->right_margin_cols) \
+ ? 0 \
+ : (XINT ((W)->right_margin_cols) \
+ * WINDOW_FRAME_COLUMN_WIDTH (W)))
+
+/* Total width of fringes reserved for drawing truncation bitmaps,
+ continuation bitmaps and alike. The width is in canonical char
+ units of the frame. This must currently be the case because window
+ sizes aren't pixel values. If it weren't the case, we wouldn't be
+ able to split windows horizontally nicely. */
+
+#define WINDOW_FRINGE_COLS(W) \
+ ((INTEGERP ((W)->left_fringe_width) \
+ || INTEGERP ((W)->right_fringe_width)) \
+ ? ((WINDOW_LEFT_FRINGE_WIDTH (W) \
+ + WINDOW_RIGHT_FRINGE_WIDTH (W) \
+ + WINDOW_FRAME_COLUMN_WIDTH (W) - 1) \
+ / WINDOW_FRAME_COLUMN_WIDTH (W)) \
+ : FRAME_FRINGE_COLS (WINDOW_XFRAME (W)))
+
+/* Column-width of the left and right fringe. */
+
+#define WINDOW_LEFT_FRINGE_COLS(W) \
+ ((WINDOW_LEFT_FRINGE_WIDTH ((W)) \
+ + WINDOW_FRAME_COLUMN_WIDTH (W) - 1) \
+ / WINDOW_FRAME_COLUMN_WIDTH (W))
+
+#define WINDOW_RIGHT_FRINGE_COLS(W) \
+ ((WINDOW_RIGHT_FRINGE_WIDTH ((W)) \
+ + WINDOW_FRAME_COLUMN_WIDTH (W) - 1) \
+ / WINDOW_FRAME_COLUMN_WIDTH (W))
+
+/* Pixel-width of the left and right fringe. */
+
+#define WINDOW_LEFT_FRINGE_WIDTH(W) \
+ (INTEGERP ((W)->left_fringe_width) \
+ ? XFASTINT ((W)->left_fringe_width) \
+ : FRAME_LEFT_FRINGE_WIDTH (WINDOW_XFRAME (W)))
+
+#define WINDOW_RIGHT_FRINGE_WIDTH(W) \
+ (INTEGERP ((W)->right_fringe_width) \
+ ? XFASTINT ((W)->right_fringe_width) \
+ : FRAME_RIGHT_FRINGE_WIDTH (WINDOW_XFRAME (W)))
+
+/* Total width of fringes in pixels. */
+
+#define WINDOW_TOTAL_FRINGE_WIDTH(W) \
+ (WINDOW_LEFT_FRINGE_WIDTH (W) + WINDOW_RIGHT_FRINGE_WIDTH (W))
+
+/* Are fringes outside display margins in window W. */
+
+#define WINDOW_HAS_FRINGES_OUTSIDE_MARGINS(W) \
+ (!NILP ((W)->fringes_outside_margins))
+
+/* Say whether scroll bars are currently enabled for window W,
+ and which side they are on. */
+
+#define WINDOW_VERTICAL_SCROLL_BAR_TYPE(w) \
+ (EQ ((w)->vertical_scroll_bar_type, Qt) \
+ ? FRAME_VERTICAL_SCROLL_BAR_TYPE (WINDOW_XFRAME (w)) \
+ : EQ ((w)->vertical_scroll_bar_type, Qleft) \
+ ? vertical_scroll_bar_left \
+ : EQ ((w)->vertical_scroll_bar_type, Qright) \
+ ? vertical_scroll_bar_right \
+ : vertical_scroll_bar_none) \
+
+#define WINDOW_HAS_VERTICAL_SCROLL_BAR(w) \
+ (EQ ((w)->vertical_scroll_bar_type, Qt) \
+ ? FRAME_HAS_VERTICAL_SCROLL_BARS (WINDOW_XFRAME (w)) \
+ : !NILP ((w)->vertical_scroll_bar_type))
+
+#define WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT(w) \
+ (EQ ((w)->vertical_scroll_bar_type, Qt) \
+ ? FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (WINDOW_XFRAME (w)) \
+ : EQ ((w)->vertical_scroll_bar_type, Qleft))
+
+#define WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT(w) \
+ (EQ ((w)->vertical_scroll_bar_type, Qt) \
+ ? FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (WINDOW_XFRAME (w))\
+ : EQ ((w)->vertical_scroll_bar_type, Qright))
+
+/* Width that a scroll bar in window W should have, if there is one.
+ Measured in pixels. If scroll bars are turned off, this is still
+ nonzero. */
+
+#define WINDOW_CONFIG_SCROLL_BAR_WIDTH(w) \
+ (INTEGERP ((w)->scroll_bar_width) \
+ ? XFASTINT ((w)->scroll_bar_width) \
+ : FRAME_CONFIG_SCROLL_BAR_WIDTH (WINDOW_XFRAME (w)))
+
+/* Width that a scroll bar in window W should have, if there is one.
+ Measured in columns (characters). If scroll bars are turned off,
+ this is still nonzero. */
+
+#define WINDOW_CONFIG_SCROLL_BAR_COLS(w) \
+ (INTEGERP ((w)->scroll_bar_width) \
+ ? ((XFASTINT ((w)->scroll_bar_width) \
+ + WINDOW_FRAME_COLUMN_WIDTH (w) - 1) \
+ / WINDOW_FRAME_COLUMN_WIDTH (w)) \
+ : FRAME_CONFIG_SCROLL_BAR_COLS (WINDOW_XFRAME (w)))
+
+/* Width of a scroll bar in window W, measured in columns (characters),
+ but only if scroll bars are on the left. If scroll bars are on
+ the right in this frame, or there are no scroll bars, value is 0. */
+
+#define WINDOW_LEFT_SCROLL_BAR_COLS(w) \
+ (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w) \
+ ? (WINDOW_CONFIG_SCROLL_BAR_COLS (w)) \
+ : 0)
+
+/* Width of a left scroll bar area in window W , measured in pixels. */
+
+#define WINDOW_LEFT_SCROLL_BAR_AREA_WIDTH(w) \
+ (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w) \
+ ? (WINDOW_CONFIG_SCROLL_BAR_COLS (w) * WINDOW_FRAME_COLUMN_WIDTH (w)) \
+ : 0)
+
+/* Width of a scroll bar in window W, measured in columns (characters),
+ but only if scroll bars are on the right. If scroll bars are on
+ the left in this frame, or there are no scroll bars, value is 0. */
+
+#define WINDOW_RIGHT_SCROLL_BAR_COLS(w) \
+ (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w) \
+ ? WINDOW_CONFIG_SCROLL_BAR_COLS (w) \
+ : 0)
+
+/* Width of a left scroll bar area in window W , measured in pixels. */
+
+#define WINDOW_RIGHT_SCROLL_BAR_AREA_WIDTH(w) \
+ (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w) \
+ ? (WINDOW_CONFIG_SCROLL_BAR_COLS (w) * WINDOW_FRAME_COLUMN_WIDTH (w)) \
+ : 0)
+
+
+/* Actual width of a scroll bar in window W, measured in columns. */
+
+#define WINDOW_SCROLL_BAR_COLS(w) \
+ (WINDOW_HAS_VERTICAL_SCROLL_BAR (w) \
+ ? WINDOW_CONFIG_SCROLL_BAR_COLS (w) \
+ : 0)
+
+/* Width of a left scroll bar area in window W , measured in pixels. */
+
+#define WINDOW_SCROLL_BAR_AREA_WIDTH(w) \
+ (WINDOW_HAS_VERTICAL_SCROLL_BAR (w) \
+ ? (WINDOW_CONFIG_SCROLL_BAR_COLS (w) * WINDOW_FRAME_COLUMN_WIDTH (w)) \
+ : 0)
+
+
+/* Return the frame position where the scroll bar of window W starts. */
+
+#define WINDOW_SCROLL_BAR_AREA_X(W) \
+ (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (W) \
+ ? WINDOW_BOX_RIGHT_EDGE_X (W) \
+ : WINDOW_LEFT_EDGE_X (W))
+
+
+/* Height in pixels, and in lines, of the mode line.
+ May be zero if W doesn't have a mode line. */
+
+#define WINDOW_MODE_LINE_HEIGHT(W) \
+ (WINDOW_WANTS_MODELINE_P ((W)) \
+ ? CURRENT_MODE_LINE_HEIGHT (W) \
+ : 0)
+
+#define WINDOW_MODE_LINE_LINES(W) \
+ (!! WINDOW_WANTS_MODELINE_P ((W)))
+
+/* Height in pixels, and in lines, of the header line.
+ Zero if W doesn't have a header line. */
+
+#define WINDOW_HEADER_LINE_HEIGHT(W) \
+ (WINDOW_WANTS_HEADER_LINE_P ((W)) \
+ ? CURRENT_HEADER_LINE_HEIGHT (W) \
+ : 0)
+
+#define WINDOW_HEADER_LINE_LINES(W) \
+ (!! WINDOW_WANTS_HEADER_LINE_P ((W)))
+
+/* Pixel height of window W without mode line. */
+
+#define WINDOW_BOX_HEIGHT_NO_MODE_LINE(W) \
+ (WINDOW_TOTAL_HEIGHT ((W)) \
+ - WINDOW_MODE_LINE_HEIGHT ((W)))
+
+/* Pixel height of window W without mode and header line. */
+
+#define WINDOW_BOX_TEXT_HEIGHT(W) \
+ (WINDOW_TOTAL_HEIGHT ((W)) \
+ - WINDOW_MODE_LINE_HEIGHT ((W)) \
+ - WINDOW_HEADER_LINE_HEIGHT ((W)))
+
+
+/* Convert window W relative pixel X to frame pixel coordinates. */
+
+#define WINDOW_TO_FRAME_PIXEL_X(W, X) \
+ ((X) + WINDOW_BOX_LEFT_EDGE_X ((W)))
+
+/* Convert window W relative pixel Y to frame pixel coordinates. */
+
+#define WINDOW_TO_FRAME_PIXEL_Y(W, Y) \
+ ((Y) + WINDOW_TOP_EDGE_Y ((W)))
+
+/* Convert frame relative pixel X to window relative pixel X. */
+
+#define FRAME_TO_WINDOW_PIXEL_X(W, X) \
+ ((X) - WINDOW_BOX_LEFT_EDGE_X ((W)))
+
+/* Convert frame relative pixel Y to window relative pixel Y. */
+
+#define FRAME_TO_WINDOW_PIXEL_Y(W, Y) \
+ ((Y) - WINDOW_TOP_EDGE_Y ((W)))
+
+/* Convert a text area relative x-position in window W to frame X
+ pixel coordinates. */
+
+#define WINDOW_TEXT_TO_FRAME_PIXEL_X(W, X) \
+ (window_box_left ((W), TEXT_AREA) + (X))
/* This is the window in which the terminal's cursor should
be left when nothing is being done with it. This must
extern Lisp_Object minibuf_window;
-/* Non-nil => window to for C-M-v to scroll
- when the minibuffer is selected. */
+/* Non-nil means it is the window whose mode line should be
+ shown as the selected window when the minibuffer is selected. */
+
+extern Lisp_Object minibuf_selected_window;
+
+/* Non-nil => window to for C-M-v to scroll when the minibuffer is
+ selected. */
+
extern Lisp_Object Vminibuf_scroll_window;
-/* nil or a symbol naming the window system
- under which emacs is running
- ('x is the only current possibility) */
+/* Nil or a symbol naming the window system under which emacs is
+ running ('x is the only current possibility) */
+
extern Lisp_Object Vwindow_system;
/* Version number of X windows: 10, 11 or nil. */
+
extern Lisp_Object Vwindow_system_version;
/* Window that the mouse is over (nil if no mouse support). */
+
extern Lisp_Object Vmouse_window;
/* Last mouse-click event (nil if no mouse support). */
+
extern Lisp_Object Vmouse_event;
-extern Lisp_Object Fnext_window ();
-extern Lisp_Object Fselect_window ();
-extern Lisp_Object Fdisplay_buffer ();
-extern Lisp_Object Fset_window_buffer ();
+EXFUN (Fnext_window, 3);
+EXFUN (Fselect_window, 2);
+EXFUN (Fdisplay_buffer, 3);
+EXFUN (Fset_window_buffer, 3);
+EXFUN (Fset_window_hscroll, 2);
+EXFUN (Fwindow_hscroll, 1);
+EXFUN (Fset_window_vscroll, 3);
+EXFUN (Fwindow_vscroll, 2);
+EXFUN (Fset_window_margins, 3);
+EXFUN (Fwindow_live_p, 1);
+EXFUN (Fset_window_point, 2);
+extern Lisp_Object make_window P_ ((void));
+extern void delete_window P_ ((Lisp_Object));
+extern Lisp_Object window_from_coordinates P_ ((struct frame *, int, int,
+ enum window_part *,
+ int *, int*, int));
+EXFUN (Fwindow_dedicated_p, 1);
+extern int window_height P_ ((Lisp_Object));
+extern int window_width P_ ((Lisp_Object));
+extern void set_window_height P_ ((Lisp_Object, int, int));
+extern void set_window_width P_ ((Lisp_Object, int, int));
+extern void change_window_heights P_ ((Lisp_Object, int));
+extern void delete_all_subwindows P_ ((struct window *));
+extern void freeze_window_starts P_ ((struct frame *, int));
+extern void foreach_window P_ ((struct frame *,
+ int (* fn) (struct window *, void *),
+ void *));
+extern void grow_mini_window P_ ((struct window *, int));
+extern void shrink_mini_window P_ ((struct window *));
+
+
+/* Make WINDOW display BUFFER as its contents. RUN_HOOKS_P non-zero
+ means it's allowed to run hooks. See make_frame for a case where
+ it's not allowed. */
+
+void set_window_buffer P_ ((Lisp_Object window, Lisp_Object buffer,
+ int run_hooks_p, int keep_margins_p));
/* Prompt to display in front of the minibuffer contents. */
-extern char *minibuf_prompt;
+
+extern Lisp_Object minibuf_prompt;
/* The visual width of the above. */
+
extern int minibuf_prompt_width;
-/* Message to display instead of minibuffer contents.
- This is what the functions error and message make,
- and command echoing uses it as well. It overrides the
- minibuf_prompt as well as the buffer. */
-extern char *echo_area_glyphs;
+/* This is the window where the echo area message was displayed. It
+ is always a minibuffer window, but it may not be the same window
+ currently active as a minibuffer. */
+
+extern Lisp_Object echo_area_window;
/* Depth in recursive edits. */
+
extern int command_loop_level;
/* Depth in minibuffer invocations. */
+
extern int minibuf_level;
/* true iff we should redraw the mode lines on the next redisplay. */
+
extern int update_mode_lines;
-/* Minimum value of GPT since last redisplay that finished. */
+/* Nonzero if BEGV - BEG or Z - ZV of current buffer has changed since
+ last redisplay that finished. */
-extern int beg_unchanged;
+extern int clip_changed;
-/* Minimum value of Z - GPT since last redisplay that finished. */
+/* Nonzero if window sizes or contents have changed since last
+ redisplay that finished */
-extern int end_unchanged;
+extern int windows_or_buffers_changed;
-/* MODIFF as of last redisplay that finished;
- if it matches MODIFF, beg_unchanged and end_unchangedn
- contain no useful information. */
-extern int unchanged_modified;
+/* Nonzero means a frame's cursor type has been changed. */
-/* Nonzero if BEGV - BEG or Z - ZV of current buffer has changed
- since last redisplay that finished. */
-extern int clip_changed;
+extern int cursor_type_changed;
-/* Nonzero if window sizes or contents have changed
- since last redisplay that finished */
-extern int windows_or_buffers_changed;
+/* Number of windows displaying the selected buffer. Normally this is
+ 1, but it can be more. */
-/* Number of windows displaying the selected buffer.
- Normally this is 1, but it can be more. */
extern int buffer_shared;
/* If *ROWS or *COLS are too small a size for FRAME, set them to the
minimum allowable size. */
-extern void check_frame_size ( /* FRAME_PTR frame, int *rows, int *cols */ );
+
+extern void check_frame_size P_ ((struct frame *frame, int *rows, int *cols));
+
+/* Return a pointer to the glyph W's physical cursor is on. Value is
+ null if W's current matrix is invalid, so that no meaningfull glyph
+ can be returned. */
+
+struct glyph *get_phys_cursor_glyph P_ ((struct window *w));
+
+/* Value is non-zero if WINDOW is a live window. */
+
+#define WINDOW_LIVE_P(WINDOW) \
+ (WINDOWP ((WINDOW)) && !NILP (XWINDOW ((WINDOW))->buffer))
+
+
+/* These used to be in lisp.h. */
+
+extern Lisp_Object Qwindowp, Qwindow_live_p;
+extern Lisp_Object Vwindow_list;
+
+EXFUN (Fwindow_end, 2);
+EXFUN (Fselected_window, 0);
+EXFUN (Fwindow_minibuffer_p, 1);
+EXFUN (Fdelete_window, 1);
+EXFUN (Fwindow_buffer, 1);
+EXFUN (Fget_buffer_window, 2);
+EXFUN (Fsave_window_excursion, UNEVALLED);
+EXFUN (Fsplit_window, 3);
+EXFUN (Fset_window_configuration, 1);
+EXFUN (Fcurrent_window_configuration, 1);
+extern int compare_window_configurations P_ ((Lisp_Object, Lisp_Object, int));
+EXFUN (Fcoordinates_in_window_p, 2);
+EXFUN (Fwindow_at, 3);
+EXFUN (Fpos_visible_in_window_p, 3);
+extern void mark_window_cursors_off P_ ((struct window *));
+extern int window_internal_height P_ ((struct window *));
+extern int window_internal_width P_ ((struct window *));
+EXFUN (Frecenter, 1);
+EXFUN (Fscroll_other_window, 1);
+EXFUN (Fset_window_start, 3);
+extern void temp_output_buffer_show P_ ((Lisp_Object));
+extern void replace_buffer_in_all_windows P_ ((Lisp_Object));
+extern void init_window_once P_ ((void));
+extern void init_window P_ ((void));
+extern void syms_of_window P_ ((void));
+extern void keys_of_window P_ ((void));
+
+extern int window_box_text_cols P_ ((struct window *w));
+
+#endif /* not WINDOW_H_INCLUDED */
+
+/* arch-tag: d4a6942f-e433-4ffe-ac10-2c3574f28577
+ (do not change this comment) */