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mc/edit/edit_key_translator.c

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/*
these #defines are probably the ones most people will be interested in.
You can use these two #defines to hard code the key mappings --- just
uncomment the one you want. But only if you have trouble with learn
keys (which is unlikely).
*/
/* KEY_BACKSPACE is the key learned in the learn keys menu : */
#define OUR_BACKSPACE_KEY KEY_BACKSPACE
/* ...otherwise ctrl-h : */
/* #define OUR_BACKSPACE_KEY XCTRL ('h') */
/* ...otherwise 127 or DEL in ascii : */
/* #define OUR_BACKSPACE_KEY 0177 */
/* KEY_DC is the key learned in the learn keys menu */
#define OUR_DELETE_KEY KEY_DC
/* ...otherwise ctrl-d : */
/* #define OUR_DELETE_KEY XCTRL ('d') */
/* ...otherwise 127 or DEL in ascii : */
/* #define OUR_DELETE_KEY 0177 */
/*
This is #include'd into the function edit_translate_key in edit.c.
This sequence of code takes 'x_state' and 'x_key' and translates them
into either 'command' or 'char_for_insertion'. 'x_key' holds one of
KEY_NPAGE, KEY_HOME etc., and 'x_state' holds a bitwise inclusive OR of
CONTROL_PRESSED, ALT_PRESSED or SHIFT_PRESSED, although none may
be supported.
'command' is one of the editor commands editcmddef.h.
Almost any C code can go into this file. The code below is an example
that may by appended or modified by the user.
*/
/* look in this file for the list of commands : */
#include "editcmddef.h"
#define KEY_NUMLOCK ???
/* ordinary translations. (Some of this may be redundant.) Note that keys listed
first take priority when a key is assigned to more than one command */
static const long *key_map;
static const long cooledit_key_map[] =
{OUR_BACKSPACE_KEY, CK_BackSpace, OUR_DELETE_KEY, CK_Delete,
XCTRL ('d'), CK_Delete, '\n', CK_Enter,
KEY_PPAGE, CK_Page_Up, KEY_NPAGE, CK_Page_Down, KEY_LEFT, CK_Left,
KEY_RIGHT, CK_Right, KEY_UP, CK_Up, KEY_DOWN, CK_Down,
ALT ('\t'), CK_Complete_Word, ALT ('\n'), CK_Return,
KEY_HOME, CK_Home, KEY_END, CK_End, '\t', CK_Tab,
XCTRL ('u'), CK_Undo, KEY_IC, CK_Toggle_Insert,
XCTRL ('o'), CK_Shell, KEY_F (3), CK_Mark,
KEY_F (13), CK_Column_Mark, KEY_F (5), CK_Copy,
KEY_F (6), CK_Move, KEY_F (8), CK_Remove, KEY_F (12), CK_Save_As,
KEY_F (2), CK_Save, XCTRL ('n'), CK_New,
XCTRL ('l'), CK_Refresh, ESC_CHAR, CK_Exit, KEY_F (10), CK_Exit,
KEY_F (11), /* edit user menu */ CK_User_Menu,
KEY_F (19), /*C formatter */ CK_Pipe_Block (0),
XCTRL ('p'), /*spell check */ CK_Pipe_Block (1),
KEY_F (15), CK_Insert_File,
XCTRL ('f'), CK_Save_Block, KEY_F (1), CK_Help,
ALT ('t'), CK_Sort, ALT ('m'), CK_Mail,
XCTRL ('z'), CK_Word_Left, XCTRL ('x'), CK_Word_Right,
KEY_F (4), CK_Replace, KEY_F (7), CK_Find, KEY_F (14), CK_Replace_Again,
XCTRL ('h'), CK_BackSpace, ALT ('l'), CK_Goto, ALT ('L'), CK_Goto,
XCTRL ('y'), CK_Delete_Line,
XCTRL ('k'), CK_Delete_To_Line_End,
KEY_F (17), CK_Find_Again, ALT ('p'), CK_Paragraph_Format,
ALT ('b'), CK_Match_Bracket,
0177, CK_BackSpace,
0, 0};
static long const emacs_key_map[] =
{OUR_BACKSPACE_KEY, CK_BackSpace, OUR_DELETE_KEY, CK_Delete, '\n', CK_Enter,
KEY_PPAGE, CK_Page_Up, KEY_NPAGE, CK_Page_Down, KEY_LEFT, CK_Left,
KEY_RIGHT, CK_Right, KEY_UP, CK_Up, KEY_DOWN, CK_Down,
ALT ('\t'), CK_Complete_Word, ALT ('\n'), CK_Return,
KEY_HOME, CK_Home, KEY_END, CK_End, '\t', CK_Tab,
XCTRL ('u'), CK_Undo, KEY_IC, CK_Toggle_Insert,
XCTRL ('o'), CK_Shell, KEY_F (3), CK_Mark, KEY_F (13), CK_Column_Mark,
KEY_F (5), CK_Copy,
KEY_F (6), CK_Move, KEY_F (8), CK_Remove, KEY_F (12), CK_Save_As,
KEY_F (2), CK_Save, ALT ('p'), CK_Paragraph_Format,
ALT ('t'), CK_Sort,
XCTRL ('a'), CK_Home, XCTRL ('e'), CK_End,
XCTRL ('b'), CK_Left, XCTRL ('f'), CK_Right,
XCTRL ('n'), CK_Down, XCTRL ('p'), CK_Up,
XCTRL ('d'), CK_Delete,
XCTRL ('v'), CK_Page_Down, ALT ('v'), CK_Page_Up,
XCTRL ('@'), CK_Mark,
XCTRL ('k'), CK_Delete_To_Line_End,
XCTRL ('s'), CK_Find,
ALT ('b'), CK_Word_Left, ALT ('f'), CK_Word_Right,
XCTRL ('w'), CK_XCut,
XCTRL ('y'), CK_XPaste,
ALT ('w'), CK_XStore,
XCTRL ('l'), CK_Refresh, ESC_CHAR, CK_Exit, KEY_F (10), CK_Exit,
KEY_F (11), /* edit user menu */ CK_User_Menu,
KEY_F (19), /*C formatter */ CK_Pipe_Block (0),
ALT ('$'), /*spell check */ CK_Pipe_Block (1),
KEY_F (15), CK_Insert_File,
KEY_F (1), CK_Help,
KEY_F (4), CK_Replace, KEY_F (7), CK_Find, KEY_F (14), CK_Replace_Again,
XCTRL ('h'), CK_BackSpace, ALT ('l'), CK_Goto, ALT ('L'), CK_Goto,
KEY_F (17), CK_Find_Again,
ALT ('<'), CK_Beginning_Of_Text,
ALT ('>'), CK_End_Of_Text,
0177, CK_BackSpace,
0, 0};
static long const key_pad_map[10] =
{XCTRL ('o'), KEY_END, KEY_DOWN, KEY_NPAGE, KEY_LEFT,
KEY_DOWN, KEY_RIGHT, KEY_HOME, KEY_UP, KEY_PPAGE};
#define DEFAULT_NUM_LOCK 0
static int num_lock = DEFAULT_NUM_LOCK;
int i = 0;
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;
}
/* if (x_key == KEY_NUMLOCK) {
num_lock = 1 - num_lock;
return 1;
}
*/
/* first translate the key-pad */
if (num_lock) {
if (x_key >= '0' && x_key <= '9') {
x_key = key_pad_map[x_key - '0'];
}
if (x_key == '.') {
x_key = KEY_DC;
}
}
if ((x_state & SHIFT_PRESSED) && (x_state & CONTROL_PRESSED)) {
switch (x_key) {
case KEY_PPAGE:
command = CK_Beginning_Of_Text_Highlight;
goto fin;
case KEY_NPAGE:
command = CK_End_Of_Text_Highlight;
goto fin;
case KEY_LEFT:
command = CK_Word_Left_Highlight;
goto fin;
case KEY_RIGHT:
command = CK_Word_Right_Highlight;
goto fin;
case KEY_UP:
command = CK_Scroll_Up_Highlight;
goto fin;
case KEY_DOWN:
command = CK_Scroll_Down_Highlight;
goto fin;
}
}
if ((x_state & SHIFT_PRESSED) && !(x_state & CONTROL_PRESSED)) {
switch (x_key) {
case KEY_PPAGE:
command = CK_Page_Up_Highlight;
goto fin;
case KEY_NPAGE:
command = CK_Page_Down_Highlight;
goto fin;
case KEY_LEFT:
command = CK_Left_Highlight;
goto fin;
case KEY_RIGHT:
command = CK_Right_Highlight;
goto fin;
case KEY_UP:
command = CK_Up_Highlight;
goto fin;
case KEY_DOWN:
command = CK_Down_Highlight;
goto fin;
case KEY_HOME:
command = CK_Home_Highlight;
goto fin;
case KEY_END:
command = CK_End_Highlight;
goto fin;
case KEY_IC:
command = CK_XPaste;
goto fin;
case KEY_DC:
command = CK_XCut;
goto fin;
}
}
/* things that need a control key */
if (x_state & CONTROL_PRESSED) {
switch (x_key) {
case KEY_F (2):
command = CK_Save_As;
goto fin;
case KEY_F (4):
command = CK_Replace_Again;
goto fin;
case KEY_F (7):
command = CK_Find_Again;
goto fin;
case KEY_BACKSPACE:
command = CK_Undo;
goto fin;
case KEY_PPAGE:
command = CK_Beginning_Of_Text;
goto fin;
case KEY_NPAGE:
command = CK_End_Of_Text;
goto fin;
case KEY_UP:
command = CK_Scroll_Up;
goto fin;
case KEY_DOWN:
command = CK_Scroll_Down;
goto fin;
case KEY_LEFT:
command = CK_Word_Left;
goto fin;
case KEY_RIGHT:
command = CK_Word_Right;
goto fin;
case KEY_IC:
command = CK_XStore;
goto fin;
case KEY_DC:
command = CK_Remove;
goto fin;
}
}
/* an ordinary insertable character */
#ifndef HAVE_CHARSET
if (x_key < 256 && is_printable (x_key)) {
char_for_insertion = x_key;
#else
if (x_key < 256 && is_printable (conv_input [x_key])) {
char_for_insertion = conv_input [x_key];
#endif
goto fin;
}
/* other commands */
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 macro's */
/* This allows the same macro to be
enabled by either eg "ALT('f')" or "XCTRL('f')" or "XCTRL('a'), 'f'" */
/* key.h: #define ALT(x) (0x200 | (x)) */
if (x_key & ALT (0)) { /* is an alt key ? */
command = CK_Macro (x_key - ALT (0));
goto fin;
}
/* key.h: #define XCTRL(x) ((x) & 31) */
if (x_key < ' ') { /* is a ctrl key ? */
command = CK_Macro (x_key);
goto fin;
}
fin:
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