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[Emacs-diffs] Changes to emacs/src/w32console.c [emacs-unicode-2]
|
From: |
Kenichi Handa |
|
Subject: |
[Emacs-diffs] Changes to emacs/src/w32console.c [emacs-unicode-2] |
|
Date: |
Mon, 08 Sep 2003 08:49:34 -0400 |
Index: emacs/src/w32console.c
diff -c /dev/null emacs/src/w32console.c:1.36.4.1
*** /dev/null Mon Sep 8 08:49:34 2003
--- emacs/src/w32console.c Mon Sep 8 08:48:15 2003
***************
*** 0 ****
--- 1,723 ----
+ /* Terminal hooks for GNU Emacs on the Microsoft W32 API.
+ Copyright (C) 1992, 1999 Free Software Foundation, Inc.
+
+ This file is part of GNU Emacs.
+
+ GNU Emacs is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ GNU Emacs is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ 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, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+
+ Tim Fleehart (address@hidden) 1-17-92
+ Geoff Voelker (address@hidden) 9-12-93
+ */
+
+
+ #include <config.h>
+
+ #include <stdlib.h>
+ #include <stdio.h>
+ #include <windows.h>
+ #include <string.h>
+
+ #include "lisp.h"
+ #include "character.h"
+ #include "coding.h"
+ #include "disptab.h"
+ #include "termhooks.h"
+ #include "dispextern.h"
+ /* Disable features in frame.h that require a Window System. */
+ #undef HAVE_WINDOW_SYSTEM
+ #include "frame.h"
+ #include "w32inevt.h"
+
+ /* from window.c */
+ extern Lisp_Object Frecenter ();
+
+ /* from keyboard.c */
+ extern int detect_input_pending ();
+
+ /* from sysdep.c */
+ extern int read_input_pending ();
+
+ extern struct frame * updating_frame;
+ extern int meta_key;
+
+ static void move_cursor (int row, int col);
+ static void clear_to_end (void);
+ static void clear_frame (void);
+ static void clear_end_of_line (int);
+ static void ins_del_lines (int vpos, int n);
+ static void insert_glyphs (struct glyph *start, int len);
+ static void write_glyphs (struct glyph *string, int len);
+ static void delete_glyphs (int n);
+ void w32_sys_ring_bell (void);
+ static void reset_terminal_modes (void);
+ static void set_terminal_modes (void);
+ static void set_terminal_window (int size);
+ static void update_begin (struct frame * f);
+ static void update_end (struct frame * f);
+ static WORD w32_face_attributes (struct frame *f, int face_id);
+
+ static COORD cursor_coords;
+ static HANDLE prev_screen, cur_screen;
+ static WORD char_attr_normal;
+ static DWORD prev_console_mode;
+
+ #ifndef USE_SEPARATE_SCREEN
+ static CONSOLE_CURSOR_INFO prev_console_cursor;
+ #endif
+
+ /* Determine whether to make frame dimensions match the screen buffer,
+ or the current window size. The former is desirable when running
+ over telnet, while the latter is more useful when working directly at
+ the console with a large scroll-back buffer. */
+ int w32_use_full_screen_buffer;
+ HANDLE keyboard_handle;
+
+
+ /* Setting this as the ctrl handler prevents emacs from being killed when
+ someone hits ^C in a 'suspended' session (child shell).
+ Also ignore Ctrl-Break signals. */
+
+ BOOL
+ ctrl_c_handler (unsigned long type)
+ {
+ /* Only ignore "interrupt" events when running interactively. */
+ return (!noninteractive
+ && (type == CTRL_C_EVENT || type == CTRL_BREAK_EVENT));
+ }
+
+ /* If we're updating a frame, use it as the current frame
+ Otherwise, use the selected frame. */
+ #define PICK_FRAME() (updating_frame ? updating_frame : SELECTED_FRAME ())
+
+ /* Move the cursor to (row, col). */
+ void
+ move_cursor (int row, int col)
+ {
+ cursor_coords.X = col;
+ cursor_coords.Y = row;
+
+ if (updating_frame == (struct frame *) NULL)
+ {
+ SetConsoleCursorPosition (cur_screen, cursor_coords);
+ }
+ }
+
+ /* Clear from cursor to end of screen. */
+ void
+ clear_to_end (void)
+ {
+ struct frame * f = PICK_FRAME ();
+
+ clear_end_of_line (FRAME_COLS (f) - 1);
+ ins_del_lines (cursor_coords.Y, FRAME_LINES (f) - cursor_coords.Y - 1);
+ }
+
+ /* Clear the frame. */
+ void
+ clear_frame (void)
+ {
+ struct frame * f = PICK_FRAME ();
+ COORD dest;
+ int n;
+ DWORD r;
+ CONSOLE_SCREEN_BUFFER_INFO info;
+
+ GetConsoleScreenBufferInfo (GetStdHandle (STD_OUTPUT_HANDLE), &info);
+
+ /* Remember that the screen buffer might be wider than the window. */
+ n = FRAME_LINES (f) * info.dwSize.X;
+ dest.X = dest.Y = 0;
+
+ FillConsoleOutputAttribute (cur_screen, char_attr_normal, n, dest, &r);
+ FillConsoleOutputCharacter (cur_screen, ' ', n, dest, &r);
+
+ move_cursor (0, 0);
+ }
+
+
+ static struct glyph glyph_base[256];
+ static BOOL ceol_initialized = FALSE;
+
+ /* Clear from Cursor to end (what's "standout marker"?). */
+ void
+ clear_end_of_line (int end)
+ {
+ if (!ceol_initialized)
+ {
+ int i;
+ for (i = 0; i < 256; i++)
+ {
+ memcpy (&glyph_base[i], &space_glyph, sizeof (struct glyph));
+ }
+ ceol_initialized = TRUE;
+ }
+ write_glyphs (glyph_base, end - cursor_coords.X); /* fencepost ? */
+ }
+
+ /* Insert n lines at vpos. if n is negative delete -n lines. */
+ void
+ ins_del_lines (int vpos, int n)
+ {
+ int i, nb;
+ SMALL_RECT scroll;
+ COORD dest;
+ CHAR_INFO fill;
+ struct frame * f = PICK_FRAME ();
+
+ if (n < 0)
+ {
+ scroll.Top = vpos - n;
+ scroll.Bottom = FRAME_LINES (f);
+ dest.Y = vpos;
+ }
+ else
+ {
+ scroll.Top = vpos;
+ scroll.Bottom = FRAME_LINES (f) - n;
+ dest.Y = vpos + n;
+ }
+ scroll.Left = 0;
+ scroll.Right = FRAME_COLS (f);
+
+ dest.X = 0;
+
+ fill.Char.AsciiChar = 0x20;
+ fill.Attributes = char_attr_normal;
+
+ ScrollConsoleScreenBuffer (cur_screen, &scroll, NULL, dest, &fill);
+
+ /* Here we have to deal with a w32 console flake: If the scroll
+ region looks like abc and we scroll c to a and fill with d we get
+ cbd... if we scroll block c one line at a time to a, we get cdd...
+ Emacs expects cdd consistently... So we have to deal with that
+ here... (this also occurs scrolling the same way in the other
+ direction. */
+
+ if (n > 0)
+ {
+ if (scroll.Bottom < dest.Y)
+ {
+ for (i = scroll.Bottom; i < dest.Y; i++)
+ {
+ move_cursor (i, 0);
+ clear_end_of_line (FRAME_COLS (f));
+ }
+ }
+ }
+ else
+ {
+ nb = dest.Y + (scroll.Bottom - scroll.Top) + 1;
+
+ if (nb < scroll.Top)
+ {
+ for (i = nb; i < scroll.Top; i++)
+ {
+ move_cursor (i, 0);
+ clear_end_of_line (FRAME_COLS (f));
+ }
+ }
+ }
+
+ cursor_coords.X = 0;
+ cursor_coords.Y = vpos;
+ }
+
+ #undef LEFT
+ #undef RIGHT
+ #define LEFT 1
+ #define RIGHT 0
+
+ void
+ scroll_line (int dist, int direction)
+ {
+ /* The idea here is to implement a horizontal scroll in one line to
+ implement delete and half of insert. */
+ SMALL_RECT scroll;
+ COORD dest;
+ CHAR_INFO fill;
+ struct frame * f = PICK_FRAME ();
+
+ scroll.Top = cursor_coords.Y;
+ scroll.Bottom = cursor_coords.Y;
+
+ if (direction == LEFT)
+ {
+ scroll.Left = cursor_coords.X + dist;
+ scroll.Right = FRAME_COLS (f) - 1;
+ }
+ else
+ {
+ scroll.Left = cursor_coords.X;
+ scroll.Right = FRAME_COLS (f) - dist - 1;
+ }
+
+ dest.X = cursor_coords.X;
+ dest.Y = cursor_coords.Y;
+
+ fill.Char.AsciiChar = 0x20;
+ fill.Attributes = char_attr_normal;
+
+ ScrollConsoleScreenBuffer (cur_screen, &scroll, NULL, dest, &fill);
+ }
+
+
+ /* If start is zero insert blanks instead of a string at start ?. */
+ void
+ insert_glyphs (register struct glyph *start, register int len)
+ {
+ scroll_line (len, RIGHT);
+
+ /* Move len chars to the right starting at cursor_coords, fill with blanks
*/
+ if (start)
+ {
+ /* Print the first len characters of start, cursor_coords.X adjusted
+ by write_glyphs. */
+
+ write_glyphs (start, len);
+ }
+ else
+ {
+ clear_end_of_line (cursor_coords.X + len);
+ }
+ }
+
+ void
+ write_glyphs (register struct glyph *string, register int len)
+ {
+ int produced, consumed;
+ DWORD r;
+ struct frame * f = PICK_FRAME ();
+ WORD char_attr;
+ unsigned char conversion_buffer[1024];
+ int conversion_buffer_size = sizeof conversion_buffer;
+
+ if (len <= 0)
+ return;
+
+ /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at
+ the tail. */
+ terminal_coding.mode &= ~CODING_MODE_LAST_BLOCK;
+
+ while (len > 0)
+ {
+ /* Identify a run of glyphs with the same face. */
+ int face_id = string->face_id;
+ int n;
+
+ for (n = 1; n < len; ++n)
+ if (string[n].face_id != face_id)
+ break;
+
+ /* Turn appearance modes of the face of the run on. */
+ char_attr = w32_face_attributes (f, face_id);
+
+ while (n > 0)
+ {
+ /* We use a fixed size (1024 bytes) of conversion buffer.
+ Usually it is sufficient, but if not, we just repeat the
+ loop. */
+ produced = encode_terminal_code (string, conversion_buffer,
+ n, conversion_buffer_size,
+ &consumed);
+ if (produced > 0)
+ {
+ /* Set the attribute for these characters. */
+ if (!FillConsoleOutputAttribute (cur_screen, char_attr,
+ produced, cursor_coords, &r))
+ {
+ printf ("Failed writing console attributes: %d\n",
+ GetLastError ());
+ fflush (stdout);
+ }
+
+ /* Write the characters. */
+ if (!WriteConsoleOutputCharacter (cur_screen, conversion_buffer,
+ produced, cursor_coords, &r))
+ {
+ printf ("Failed writing console characters: %d\n",
+ GetLastError ());
+ fflush (stdout);
+ }
+
+ cursor_coords.X += produced;
+ move_cursor (cursor_coords.Y, cursor_coords.X);
+ }
+ len -= consumed;
+ n -= consumed;
+ string += consumed;
+ }
+ }
+
+ /* We may have to output some codes to terminate the writing. */
+ if (CODING_REQUIRE_FLUSHING (&terminal_coding))
+ {
+ terminal_coding.mode |= CODING_MODE_LAST_BLOCK;
+ encode_coding (&terminal_coding, "", conversion_buffer,
+ 0, conversion_buffer_size);
+ if (terminal_coding.produced > 0)
+ {
+ if (!FillConsoleOutputAttribute (cur_screen, char_attr_normal,
+ terminal_coding.produced,
+ cursor_coords, &r))
+ {
+ printf ("Failed writing console attributes: %d\n",
+ GetLastError ());
+ fflush (stdout);
+ }
+
+ /* Write the characters. */
+ if (!WriteConsoleOutputCharacter (cur_screen, conversion_buffer,
+ produced, cursor_coords, &r))
+ {
+ printf ("Failed writing console characters: %d\n",
+ GetLastError ());
+ fflush (stdout);
+ }
+ }
+ }
+ }
+
+
+ void
+ delete_glyphs (int n)
+ {
+ /* delete chars means scroll chars from cursor_coords.X + n to
+ cursor_coords.X, anything beyond the edge of the screen should
+ come out empty... */
+
+ scroll_line (n, LEFT);
+ }
+
+ static unsigned int sound_type = 0xFFFFFFFF;
+ #define MB_EMACS_SILENT (0xFFFFFFFF - 1)
+
+ void
+ w32_sys_ring_bell (void)
+ {
+ if (sound_type == 0xFFFFFFFF)
+ {
+ Beep (666, 100);
+ }
+ else if (sound_type == MB_EMACS_SILENT)
+ {
+ /* Do nothing. */
+ }
+ else
+ MessageBeep (sound_type);
+ }
+
+ DEFUN ("set-message-beep", Fset_message_beep, Sset_message_beep, 1, 1, 0,
+ doc: /* Set the sound generated when the bell is rung.
+ SOUND is 'asterisk, 'exclamation, 'hand, 'question, 'ok, or 'silent
+ to use the corresponding system sound for the bell. The 'silent sound
+ prevents Emacs from making any sound at all.
+ SOUND is nil to use the normal beep. */)
+ (sound)
+ Lisp_Object sound;
+ {
+ CHECK_SYMBOL (sound);
+
+ if (NILP (sound))
+ sound_type = 0xFFFFFFFF;
+ else if (EQ (sound, intern ("asterisk")))
+ sound_type = MB_ICONASTERISK;
+ else if (EQ (sound, intern ("exclamation")))
+ sound_type = MB_ICONEXCLAMATION;
+ else if (EQ (sound, intern ("hand")))
+ sound_type = MB_ICONHAND;
+ else if (EQ (sound, intern ("question")))
+ sound_type = MB_ICONQUESTION;
+ else if (EQ (sound, intern ("ok")))
+ sound_type = MB_OK;
+ else if (EQ (sound, intern ("silent")))
+ sound_type = MB_EMACS_SILENT;
+ else
+ sound_type = 0xFFFFFFFF;
+
+ return sound;
+ }
+
+ void
+ reset_terminal_modes (void)
+ {
+ #ifdef USE_SEPARATE_SCREEN
+ SetConsoleActiveScreenBuffer (prev_screen);
+ #else
+ SetConsoleCursorInfo (prev_screen, &prev_console_cursor);
+ #endif
+ SetConsoleMode (keyboard_handle, prev_console_mode);
+ }
+
+ void
+ set_terminal_modes (void)
+ {
+ CONSOLE_CURSOR_INFO cci;
+
+ /* make cursor big and visible (100 on Win95 makes it disappear) */
+ cci.dwSize = 99;
+ cci.bVisible = TRUE;
+ (void) SetConsoleCursorInfo (cur_screen, &cci);
+
+ SetConsoleActiveScreenBuffer (cur_screen);
+
+ SetConsoleMode (keyboard_handle, ENABLE_MOUSE_INPUT | ENABLE_WINDOW_INPUT);
+
+ /* Initialize input mode: interrupt_input off, no flow control, allow
+ 8 bit character input, standard quit char. */
+ Fset_input_mode (Qnil, Qnil, make_number (2), Qnil);
+ }
+
+ /* hmmm... perhaps these let us bracket screen changes so that we can flush
+ clumps rather than one-character-at-a-time...
+
+ we'll start with not moving the cursor while an update is in progress. */
+ void
+ update_begin (struct frame * f)
+ {
+ }
+
+ void
+ update_end (struct frame * f)
+ {
+ SetConsoleCursorPosition (cur_screen, cursor_coords);
+ }
+
+ void
+ set_terminal_window (int size)
+ {
+ }
+
+ /***********************************************************************
+ Faces
+ ***********************************************************************/
+
+
+ /* Turn appearances of face FACE_ID on tty frame F on. */
+
+ static WORD
+ w32_face_attributes (f, face_id)
+ struct frame *f;
+ int face_id;
+ {
+ WORD char_attr;
+ struct face *face = FACE_FROM_ID (f, face_id);
+
+ xassert (face != NULL);
+
+ char_attr = char_attr_normal;
+
+ if (face->foreground != FACE_TTY_DEFAULT_FG_COLOR
+ && face->foreground != FACE_TTY_DEFAULT_COLOR)
+ char_attr = (char_attr & 0xfff0) + (face->foreground % 16);
+
+ if (face->background != FACE_TTY_DEFAULT_BG_COLOR
+ && face->background != FACE_TTY_DEFAULT_COLOR)
+ char_attr = (char_attr & 0xff0f) + ((face->background % 16) << 4);
+
+
+ /* NTEMACS_TODO: Faces defined during startup get both foreground
+ and background of 0. Need a better way around this - for now detect
+ the problem and invert one of the faces to make the text readable. */
+ if (((char_attr & 0x00f0) >> 4) == (char_attr & 0x000f))
+ char_attr ^= 0x0007;
+
+ if (face->tty_reverse_p)
+ char_attr = (char_attr & 0xff00) + ((char_attr & 0x000f) << 4)
+ + ((char_attr & 0x00f0) >> 4);
+
+ return char_attr;
+ }
+
+
+ /* Emulation of some X window features from xfns.c and xfaces.c. */
+
+ extern char unspecified_fg[], unspecified_bg[];
+
+
+ /* Given a color index, return its standard name. */
+ Lisp_Object
+ vga_stdcolor_name (int idx)
+ {
+ /* Standard VGA colors, in the order of their standard numbering
+ in the default VGA palette. */
+ static char *vga_colors[16] = {
+ "black", "blue", "green", "cyan", "red", "magenta", "brown",
+ "lightgray", "darkgray", "lightblue", "lightgreen", "lightcyan",
+ "lightred", "lightmagenta", "yellow", "white"
+ };
+
+ extern Lisp_Object Qunspecified;
+
+ if (idx >= 0 && idx < sizeof (vga_colors) / sizeof (vga_colors[0]))
+ return build_string (vga_colors[idx]);
+ else
+ return Qunspecified; /* meaning the default */
+ }
+
+ typedef int (*term_hook) ();
+
+ void
+ initialize_w32_display (void)
+ {
+ CONSOLE_SCREEN_BUFFER_INFO info;
+
+ cursor_to_hook = move_cursor;
+ raw_cursor_to_hook = move_cursor;
+ clear_to_end_hook = clear_to_end;
+ clear_frame_hook = clear_frame;
+ clear_end_of_line_hook = clear_end_of_line;
+ ins_del_lines_hook = ins_del_lines;
+ insert_glyphs_hook = insert_glyphs;
+ write_glyphs_hook = write_glyphs;
+ delete_glyphs_hook = delete_glyphs;
+ ring_bell_hook = w32_sys_ring_bell;
+ reset_terminal_modes_hook = reset_terminal_modes;
+ set_terminal_modes_hook = set_terminal_modes;
+ set_terminal_window_hook = set_terminal_window;
+ update_begin_hook = update_begin;
+ update_end_hook = update_end;
+
+ read_socket_hook = w32_console_read_socket;
+ mouse_position_hook = w32_console_mouse_position;
+
+ /* Initialize interrupt_handle. */
+ init_crit ();
+
+ /* Remember original console settings. */
+ keyboard_handle = GetStdHandle (STD_INPUT_HANDLE);
+ GetConsoleMode (keyboard_handle, &prev_console_mode);
+
+ prev_screen = GetStdHandle (STD_OUTPUT_HANDLE);
+
+ #ifdef USE_SEPARATE_SCREEN
+ cur_screen = CreateConsoleScreenBuffer (GENERIC_READ | GENERIC_WRITE,
+ 0, NULL,
+ CONSOLE_TEXTMODE_BUFFER,
+ NULL);
+
+ if (cur_screen == INVALID_HANDLE_VALUE)
+ {
+ printf ("CreateConsoleScreenBuffer failed in ResetTerm\n");
+ printf ("LastError = 0x%lx\n", GetLastError ());
+ fflush (stdout);
+ exit (0);
+ }
+ #else
+ cur_screen = prev_screen;
+ GetConsoleCursorInfo (prev_screen, &prev_console_cursor);
+ #endif
+
+ /* Respect setting of LINES and COLUMNS environment variables. */
+ {
+ char * lines = getenv("LINES");
+ char * columns = getenv("COLUMNS");
+
+ if (lines != NULL && columns != NULL)
+ {
+ SMALL_RECT new_win_dims;
+ COORD new_size;
+
+ new_size.X = atoi (columns);
+ new_size.Y = atoi (lines);
+
+ GetConsoleScreenBufferInfo (cur_screen, &info);
+
+ /* Shrink the window first, so the buffer dimensions can be
+ reduced if necessary. */
+ new_win_dims.Top = 0;
+ new_win_dims.Left = 0;
+ new_win_dims.Bottom = min (new_size.Y, info.dwSize.Y) - 1;
+ new_win_dims.Right = min (new_size.X, info.dwSize.X) - 1;
+ SetConsoleWindowInfo (cur_screen, TRUE, &new_win_dims);
+
+ SetConsoleScreenBufferSize (cur_screen, new_size);
+
+ /* Set the window size to match the buffer dimension. */
+ new_win_dims.Top = 0;
+ new_win_dims.Left = 0;
+ new_win_dims.Bottom = new_size.Y - 1;
+ new_win_dims.Right = new_size.X - 1;
+ SetConsoleWindowInfo (cur_screen, TRUE, &new_win_dims);
+ }
+ }
+
+ GetConsoleScreenBufferInfo (cur_screen, &info);
+
+ meta_key = 1;
+ char_attr_normal = info.wAttributes;
+
+ if (w32_use_full_screen_buffer)
+ {
+ FRAME_LINES (SELECTED_FRAME ()) = info.dwSize.Y; /* lines per
page */
+ SET_FRAME_COLS (SELECTED_FRAME (), info.dwSize.X); /* characters per
line */
+ }
+ else
+ {
+ /* Lines per page. Use buffer coords instead of buffer size. */
+ FRAME_LINES (SELECTED_FRAME ()) = 1 + info.srWindow.Bottom -
+ info.srWindow.Top;
+ /* Characters per line. Use buffer coords instead of buffer size. */
+ SET_FRAME_COLS (SELECTED_FRAME (), 1 + info.srWindow.Right -
+ info.srWindow.Left);
+ }
+
+ /* Setup w32_display_info structure for this frame. */
+
+ w32_initialize_display_info (build_string ("Console"));
+
+ }
+
+ DEFUN ("set-screen-color", Fset_screen_color, Sset_screen_color, 2, 2, 0,
+ doc: /* Set screen colors. */)
+ (foreground, background)
+ Lisp_Object foreground;
+ Lisp_Object background;
+ {
+ char_attr_normal = XFASTINT (foreground) + (XFASTINT (background) << 4);
+
+ Frecenter (Qnil);
+ return Qt;
+ }
+
+ DEFUN ("set-cursor-size", Fset_cursor_size, Sset_cursor_size, 1, 1, 0,
+ doc: /* Set cursor size. */)
+ (size)
+ Lisp_Object size;
+ {
+ CONSOLE_CURSOR_INFO cci;
+ cci.dwSize = XFASTINT (size);
+ cci.bVisible = TRUE;
+ (void) SetConsoleCursorInfo (cur_screen, &cci);
+
+ return Qt;
+ }
+
+ void
+ syms_of_ntterm ()
+ {
+ DEFVAR_BOOL ("w32-use-full-screen-buffer",
+ &w32_use_full_screen_buffer,
+ doc: /* Non-nil means make terminal frames use the full screen
buffer dimensions.
+ This is desirable when running Emacs over telnet, and is the default.
+ A value of nil means use the current console window dimensions; this
+ may be preferrable when working directly at the console with a large
+ scroll-back buffer. */);
+ w32_use_full_screen_buffer = 1;
+
+ defsubr (&Sset_screen_color);
+ defsubr (&Sset_cursor_size);
+ defsubr (&Sset_message_beep);
+ }
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Kenichi Handa <=