* src/term.c (syms_of_term): New variable.
* src/cm.c (calccost): Control overshooting with new variable.
* etc/NEWS: Document new variable.
* lisp/term/rxvt.el (terminal-init-rxvt): Force no TAB+BS for
rxvt. (Bug#78474)
* lisp/faces.el (face-spec-recalc): Don't set
scroll-bar-foreground and scroll-bar-background parameters on
ttys.
* lisp/mouse.el (mouse-drag-frame-resize)
(mouse-drag-frame-move): On ttys call
'mouse-position-in-root-frame' to get position of child frame to
resize or drag.
* lisp/xt-mouse.el (xterm-mouse-event): Handle events on
child frame decorations as if they happened on the internal border
to find out whether a user wants to drag or resize a child frame.
* src/frame.c (frame_internal_border_part): Define for ttys too.
(Fmouse_position_in_root_frame): New function.
* src/frame.h (internal_border_part): Define for ttys too.
* src/keyboard.c (internal_border_parts): Define for ttys too.
(frame_border_side): New enum.
(make_lispy_position): Handle events on tty child frames.
(Fposn_at_x_y): Accept -1 for Y so we can handle a position on
the top decoration of a tty child frame.
* src/term.c (tty_frame_at): Handle case where X and Y denote a
position on a tty child frame's decoration.
* src/window.c (Fwindow_at): Handle case where X and Y denote a
position on the decoration of a tty child frame which we pretend
as belonging to that child frame (and not to its root).
* src/term.c (tty_write_glyphs_1): Renamed from tty_write_glyphs. Don't
check if writing the bottom-right corner.
(tty_write_glyphs): New function handling case of writing to the
bottom-right corner, and otherwise calling tty_write_glyphs_1.
* src/term.c (Ftty_frame_at):
* src/menu.c (syms_of_menu) <x-popup-menu-function>:
* src/dispnew.c (Fredisplay): Fix "doc:". The extra blank was
preventing 'make-docfile' from recognizing the functions and
variables and extracting their documentation to 'etc/DOC'.
(Bug#76722)
* src/term.c (tty_free_frame_resources): When deleting a child mark its
root frame to garbaged.
* src/dispnew.c (prepare_desired_root_row): Add a check for GLYPH_DEBUG.
* src/term.c (handle_one_term_event): Don’t access possibly
uninitialized storage if frame is nil. This fixes an issue introduced
in commit 5eae7f5227 dated 2025-01-26
14:43:51 -0800. Issue caught by --enable-gcc-warnings, which enables
-Wanalyzer-use-of-uninitialized-value with gcc (GCC) 14.2.1 20250110
(Red Hat 14.2.1-7).
* src/dispnew.c (child_xy): New function.
* src/dispextern.h: Declare it.
* src/term.c (tty_frame_at): Return child-relative (x, y) in output
parameters.
(Ftty_frame_at): Return a list (FRAME CHILD-X CHILD-Y).
(handle_one_term_event): Adapt use of tty_frame_at.
* lisp/xt-mouse.el (xterm-mouse-event): Use new tty-frame-at.
* src/dispnew.c (root_xy): New function.
(frame_pos_abs): Removed.
(frame_rect_abs, abs_cursor_pos): Use root_xy.
* src/dispextern.h: Declare root_xy.
* src/term.c (mouse_get_xy): Use it.
* lisp/frame.el (x-list-fonts): Delete `frame-at', to move to
C implementation.
* lisp/xt-mouse.el (xterm-mouse-event): Call new `tty-frame-at'.
* src/term.c (tty_frame_at, Ftty_frame_at): New C function,
replacing `frame-at' only for TTYs.
(term_mouse_position): Use last_mouse_frame when it is set.
(handle_one_term_event): Call tty_frame_at to get frame under
mouse, store it in last_mouse_frame. Alter event coordinates
based on mouse frame.
(syms_of_term): Add tty-frame-at, last_mouse_frame.
* src/termhooks.h: Make Gpm_Event parameter const.
* src/term.c (restore_desired_matrix): If a tty menu saves a current
matrix that contains glyphs from a child frame, handle the case that
that child frame dies before the saved state is restored.
This is based on a diff from 2024-10-15 which still applied.
Since then, I've inadvertantly modified the igc branch so that
it is no longer possible to get a clean diff of what has changed
since I created the branch.
It sounds like this has been broken ever since multi-tty was
added to Emacs.
* src/keyboard.c (dev_tty): New global variable.
* src/keyboard.h: Declare 'dev_tty'.
* src/emacs.c (main): Initialize 'dev_tty'.
* src/term.c (Fcontrolling_tty_p, Fresume_tty, init_tty):
* src/process.c (dissociate_controlling_tty):
* src/keyboard.c (handle_interrupt_signal, handle_interrupt)
(Fset_quit_char): Use 'dev_tty' instead of 'DEV_TTY'. (Bug#70519)
* src/dispextern.h (face, face_underline_type, syms_of_xfacse)
(internal-set-lisp-face-attribute)
(gui_supports_face_attributes_p): Add definitions for new
underline styles of Double-line, Dots and Dashes. Rename
FACE_UNDER_LINE and FACE_UNDER_WAVE to make definitions
consistent. Delete tty_underline_p from the face struct and use
just underline going forward. Add a flag to check whether styled
underlines are available.
* lisp/cus-face.el (custom-face-attributes): Add entries for
Double-line, Dots and Dashes so they can be set through
`customize'.
* src/termchar.c (tty_display_info): Add an entry for the escape
sequence to set the underline style and color on terminal frames.
* src/term.c (init_tty, tty_capable_p, turn_on_face): Read and
save the underline style escape sequence from the Smulx termcap
(alternatively if the Su flag is set use a default sequence).
Allow checking for support of styled underlines in the current
terminal frame. Output the necessary escape sequences to activate
a styled underline on turn_on_face; this is currently only used
for the new special underline styles, a default straight underline
will still use the "us" termcap. Output escape sequence to set
underline color when set in the face and supported by the tty.
Save a default value for this sequence on init_tty when styled
underlines are supported.
* src/xfaces.c (tty_supports_face_attributes_p, realize_tty_face)
(map_tty_color): Assert whether styled underlines are supported by
the current terminal on display-supports-face-attributes-p checks.
Populate the correct underline style and color in the face spec
when realizing a face. Allow map_tty_color to map underline
colors alongside foreground and background. The interface of
map_tty_color was amended to allow the caller to supply the
underline color instead of accessing it through the face
attributes. (bug#62994)
* src/xterm.c (x_draw_glyph_string): Updated to use renamed
FACE_UNDERLINE_SINGLE and FACE_UNDERLINE_WAVE face_underline_type
enumerations.
* src/dispextern.h (struct it) <wrap_prefix_width>: New field,
synchronized with current_x when producing glyphs for wrap
prefixes, and subtracted from it->current_x when computing tab
widths.
* src/term.c (produce_glyphs): Set wrap_prefix_width.
* src/xdisp.c (start_display, display_min_width, move_it_to)
(move_it_vertically_backward, move_it_by_lines)
(window_text_pixel_size, display_tab_bar_line)
(display_tool_bar_line, redisplay_internal, redisplay_window)
(try_window_id, insert_left_trunc_glyphs)
(extend_face_to_end_of_line, display_line)
(Fmove_point_visually): Set or clear wrap_prefix_width as
appropriate.
(gui_produce_glyphs): Set or clear it->wrap_prefix_width. When
computing the base position of a tab character, do not subtract
the continuation line width if a line prefix is the current
iterator method. Subtract the wrap_prefix_width otherwise, in
order that the width of the tab is computed free of influence
from the wrap prefix.
Be more systematic about putting space before paren in calls,
and in avoiding unnecessary parentheses in macros.
This was partly inspired by my wading through gcc -E output
while debugging something else, and seeing too many parens.
This patch does not change the generated .o files on my platform.
The `safe_call/eval` family of functions started its life in `xdisp.c`
for the needs of redisplay but quickly became popular outside of it.
This is not ideal because despite their name, they are somewhat
specific to the needs of redisplay.
So we split them into `safe_call/eval` (in `eval.c`) and `dsafe_call/eval`
(in `xdisp.c`). We took this opportunity to slightly change their
calling convention to be friendly to the CALLN-style macros.
While at it, we introduce a new `calln` macro as well which does
all that `call[1-8]` used to do.
* src/eval.c (safe_eval_handler, safe_funcall, safe_eval): New functions,
Copied from `xdisp.c`. Don't obey `inhibit_eval_during_redisplay` any more.
Adjust error message to not claim it happened during redisplay.
* src/lisp.h (calln): New macro.
(call1, call2, call3, call4, call5, call6, call7, call8): Turn them
into aliases of `calln`.
(safe_funcall): Declare.
(safe_calln): New macro.
(safe_call1, safe_call2): Redefine as compatibility macros.
(safe_call, safe_call1, safe_call2): Delete.
Replace all callers with calls to `safe_calln`.
* src/xdisp.c (dsafe_eval_handler): Rename from `safe_eval_handler`.
Adjust all users.
(dsafe__call): Rename from `safe_call` and change calling convention to
work with something like CALLMANY. Adjust all users.
(safe_call, safe__call1, safe_call2): Delete functions.
(SAFE_CALLMANY, dsafe_calln): New macros.
(dsafe_call1, dsafe_eval): Rename from `safe_call1` and `safe_eval`,
and rewrite using them. Adjust all users.
(clear_message, prepare_menu_bars, redisplay_window): Use `dsafe_calln`.
(run_window_scroll_functions): Don't let-bind `Qinhibit_quit`
since `safe_run_hooks_2` does it for us.
* src/androidfns.c (Fx_display_backing_store): Return
`when-mapped' in place of `always', since the former better
reflects Android port behavior.
(syms_of_androidfns) <always>: Delete defsym.
<when-mapped>: New defsym.
* src/term.c (Fsuspend_tty, Fresume_tty): Properly signal errors
on Android rather than quietly disregarding calls.
