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mc/edit/editkeys.c

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/* Editor key translation.
Copyright (C) 1996, 1997 the Free Software Foundation
Authors: 1996, 1997 Paul Sheer
This program 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 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307, USA.
*/
#include <config.h>
#include "edit.h"
#include "edit-widget.h" /* edit->macro_i */
#include "editcmddef.h" /* list of commands */
#include "../src/key.h" /* KEY_M_SHIFT */
#include "../src/tty.h" /* keys */
#include "../src/charsets.h" /* convert_from_input_c() */
#include "../src/selcodepage.h" /* do_select_codepage() */
/*
* Ordinary translations. Note that the keys listed first take priority
* when the key is assigned to more than one command.
*/
static const long cooledit_key_map[] = {
ALT ('b'), CK_Match_Bracket,
ALT ('m'), CK_Mail,
XCTRL ('f'), CK_Save_Block,
XCTRL ('n'), CK_New,
XCTRL ('p'), CK_Pipe_Block (1), /* spell check */
XCTRL ('x'), CK_Word_Right,
XCTRL ('y'), CK_Delete_Line,
XCTRL ('z'), CK_Word_Left,
0, 0
};
static long const emacs_key_map[] = {
ALT ('$'), CK_Pipe_Block (1), /* spell check */
ALT ('b'), CK_Word_Left,
ALT ('f'), CK_Word_Right,
ALT ('v'), CK_Page_Up,
ALT ('w'), CK_XStore,
XCTRL ('@'), CK_Mark,
XCTRL ('a'), CK_Home,
XCTRL ('b'), CK_Left,
XCTRL ('e'), CK_End,
XCTRL ('f'), CK_Right,
XCTRL ('n'), CK_Down,
XCTRL ('p'), CK_Up,
XCTRL ('s'), CK_Find,
XCTRL ('v'), CK_Page_Down,
XCTRL ('w'), CK_XCut,
XCTRL ('y'), CK_XPaste,
0, 0
};
static long const common_key_map[] = {
'\n', CK_Enter,
'\t', CK_Tab,
ESC_CHAR, CK_Exit,
KEY_BACKSPACE, CK_BackSpace,
KEY_DC, CK_Delete,
KEY_DOWN, CK_Down,
KEY_END, CK_End,
KEY_HOME, CK_Home,
KEY_IC, CK_Toggle_Insert,
KEY_LEFT, CK_Left,
KEY_NPAGE, CK_Page_Down,
KEY_PPAGE, CK_Page_Up,
KEY_RIGHT, CK_Right,
KEY_UP, CK_Up,
ALT ('\n'), CK_Return,
ALT ('\t'), CK_Complete_Word,
ALT ('l'), CK_Goto,
ALT ('L'), CK_Goto,
ALT ('p'), CK_Paragraph_Format,
ALT ('t'), CK_Sort,
ALT ('u'), CK_ExtCmd,
ALT ('<'), CK_Beginning_Of_Text,
ALT ('>'), CK_End_Of_Text,
ALT (KEY_BACKSPACE), CK_Delete_Word_Left,
XCTRL ('k'), CK_Delete_To_Line_End,
XCTRL ('l'), CK_Refresh,
XCTRL ('o'), CK_Shell,
XCTRL ('u'), CK_Undo,
KEY_F (1), CK_Help,
KEY_F (2), CK_Save,
KEY_F (3), CK_Mark,
KEY_F (4), CK_Replace,
KEY_F (5), CK_Copy,
KEY_F (6), CK_Move,
KEY_F (7), CK_Find,
KEY_F (8), CK_Remove,
KEY_F (10), CK_Exit,
KEY_F (11), CK_User_Menu, /* edit user menu */
KEY_F (12), CK_Save_As,
KEY_F (13), CK_Column_Mark,
KEY_F (14), CK_Replace_Again,
KEY_F (15), CK_Insert_File,
KEY_F (17), CK_Find_Again,
KEY_F (19), CK_Pipe_Block (0), /* C formatter */
/* Shift */
KEY_M_SHIFT | KEY_PPAGE, CK_Page_Up_Highlight,
KEY_M_SHIFT | KEY_NPAGE, CK_Page_Down_Highlight,
KEY_M_SHIFT | KEY_LEFT, CK_Left_Highlight,
KEY_M_SHIFT | KEY_RIGHT, CK_Right_Highlight,
KEY_M_SHIFT | KEY_UP, CK_Up_Highlight,
KEY_M_SHIFT | KEY_DOWN, CK_Down_Highlight,
KEY_M_SHIFT | KEY_HOME, CK_Home_Highlight,
KEY_M_SHIFT | KEY_END, CK_End_Highlight,
KEY_M_SHIFT | KEY_IC, CK_XPaste,
KEY_M_SHIFT | KEY_DC, CK_XCut,
KEY_M_SHIFT | '\n', CK_Return, /* useful for pasting multiline text */
/* Ctrl */
KEY_M_CTRL | (KEY_F (2)), CK_Save_As,
KEY_M_CTRL | (KEY_F (4)), CK_Replace_Again,
KEY_M_CTRL | (KEY_F (7)), CK_Find_Again,
KEY_M_CTRL | KEY_BACKSPACE, CK_Undo,
KEY_M_CTRL | KEY_PPAGE, CK_Beginning_Of_Text,
KEY_M_CTRL | KEY_NPAGE, CK_End_Of_Text,
KEY_M_CTRL | KEY_HOME, CK_Beginning_Of_Text,
KEY_M_CTRL | KEY_END, CK_End_Of_Text,
KEY_M_CTRL | KEY_UP, CK_Scroll_Up,
KEY_M_CTRL | KEY_DOWN, CK_Scroll_Down,
KEY_M_CTRL | KEY_LEFT, CK_Word_Left,
KEY_M_CTRL | KEY_RIGHT, CK_Word_Right,
KEY_M_CTRL | KEY_IC, CK_XStore,
KEY_M_CTRL | KEY_DC, CK_Remove,
/* Ctrl + Shift */
KEY_M_SHIFT | KEY_M_CTRL | KEY_PPAGE, CK_Beginning_Of_Text_Highlight,
KEY_M_SHIFT | KEY_M_CTRL | KEY_NPAGE, CK_End_Of_Text_Highlight,
KEY_M_SHIFT | KEY_M_CTRL | KEY_LEFT, CK_Word_Left_Highlight,
KEY_M_SHIFT | KEY_M_CTRL | KEY_RIGHT, CK_Word_Right_Highlight,
KEY_M_SHIFT | KEY_M_CTRL | KEY_UP, CK_Scroll_Up_Highlight,
KEY_M_SHIFT | KEY_M_CTRL | KEY_DOWN, CK_Scroll_Down_Highlight,
0, 0
};
/*
* Translate the keycode into either 'command' or 'char_for_insertion'.
* 'command' is one of the editor commands from editcmddef.h.
*/
int
edit_translate_key (WEdit *edit, long x_key, int *cmd, int *ch)
{
int command = -1;
int char_for_insertion = -1;
int i = 0;
static const long *key_map;
switch (edit_key_emulation) {
case EDIT_KEY_EMULATION_NORMAL:
key_map = cooledit_key_map;
break;
case EDIT_KEY_EMULATION_EMACS:
key_map = emacs_key_map;
if (x_key == XCTRL ('x')) {
int ext_key;
ext_key =
edit_raw_key_query (" Ctrl-X ", _(" Emacs key: "), 0);
switch (ext_key) {
case 's':
command = CK_Save;
goto fin;
case 'x':
command = CK_Exit;
goto fin;
case 'k':
command = CK_New;
goto fin;
case 'e':
command =
CK_Macro (edit_raw_key_query
(_(" Execute Macro "),
_(" Press macro hotkey: "), 1));
if (command == CK_Macro (0))
command = -1;
goto fin;
}
goto fin;
}
break;
}
#ifdef HAVE_CHARSET
if (x_key == XCTRL ('t')) {
do_select_codepage ();
edit->force = REDRAW_COMPLETELY;
command = CK_Refresh;
goto fin;
}
#endif
if (x_key == XCTRL ('q')) {
char_for_insertion =
edit_raw_key_query (_(" Insert Literal "),
_(" Press any key: "), 0);
goto fin;
}
if (x_key == XCTRL ('a')
&& edit_key_emulation != EDIT_KEY_EMULATION_EMACS) {
command =
CK_Macro (edit_raw_key_query
(_(" Execute Macro "), _(" Press macro hotkey: "),
1));
if (command == CK_Macro (0))
command = -1;
goto fin;
}
/* edit is a pointer to the widget */
if (edit)
if (x_key == XCTRL ('r')) {
command =
edit->macro_i <
0 ? CK_Begin_Record_Macro : CK_End_Record_Macro;
goto fin;
}
/* an ordinary insertable character */
if (x_key < 256) {
int c = convert_from_input_c (x_key);
if (is_printable (c)) {
char_for_insertion = c;
goto fin;
}
}
/* Commands specific to the key emulation */
i = 0;
while (key_map[i] != x_key && (key_map[i] || key_map[i + 1]))
i += 2;
command = key_map[i + 1];
if (command)
goto fin;
/* Commands common for the key emulations */
key_map = common_key_map;
i = 0;
while (key_map[i] != x_key && (key_map[i] || key_map[i + 1]))
i += 2;
command = key_map[i + 1];
if (command)
goto fin;
/* Function still not found for this key, so try macros */
/* This allows the same macro to be
enabled by either eg "ALT('f')" or "XCTRL('f')" or "XCTRL('a'), 'f'" */
if (x_key & ALT (0)) { /* is an alt key ? */
command = CK_Macro (x_key - ALT (0));
goto fin;
}
if (x_key < ' ') { /* is a ctrl key ? */
command = CK_Macro (x_key);
goto fin;
}
fin:
*cmd = command;
*ch = char_for_insertion;
if ((command == -1 || command == 0) && char_for_insertion == -1) {
/* unchanged, key has no function here */
return 0;
}
return 1;
}
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