mirror of
https://github.com/MidnightCommander/mc
synced 2024-12-23 04:46:55 +03:00
b0b73df498
directory to avoid the need to rename slang.h. * Makefile.am: Adjust file list. Add "-Iinclude" to the compiler flags. * include/jdmacros.h: Rewrite to use glib. * slmisc.c: Trim to include only needed functions.
355 lines
9.0 KiB
C
355 lines
9.0 KiB
C
/* Copyright (c) 1992, 1999, 2001, 2002 John E. Davis
|
|
* This file is part of the S-Lang library.
|
|
*
|
|
* You may distribute under the terms of either the GNU General Public
|
|
* License or the Perl Artistic License.
|
|
*/
|
|
|
|
#include "slinclud.h"
|
|
|
|
#include <windows.h>
|
|
#include <winbase.h>
|
|
|
|
#include "slang.h"
|
|
#include "_slang.h"
|
|
|
|
#ifdef __cplusplus
|
|
# define _DOTS_ ...
|
|
#else
|
|
# define _DOTS_ void
|
|
#endif
|
|
|
|
static int Process_Mouse_Events;
|
|
|
|
/*----------------------------------------------------------------------*\
|
|
* Function: static void set_ctrl_break (int state);
|
|
*
|
|
* set the control-break setting
|
|
\*----------------------------------------------------------------------*/
|
|
static void set_ctrl_break (int state)
|
|
{
|
|
}
|
|
|
|
/*----------------------------------------------------------------------*\
|
|
* Function: int SLang_init_tty (int abort_char, int no_flow_control,
|
|
* int opost);
|
|
*
|
|
* initialize the keyboard interface and attempt to set-up the interrupt 9
|
|
* handler if ABORT_CHAR is non-zero.
|
|
* NO_FLOW_CONTROL and OPOST are only for compatiblity and are ignored.
|
|
\*----------------------------------------------------------------------*/
|
|
|
|
HANDLE _SLw32_Hstdin = INVALID_HANDLE_VALUE;
|
|
|
|
int SLang_init_tty (int abort_char, int no_flow_control, int opost)
|
|
{
|
|
(void) opost;
|
|
(void) no_flow_control;
|
|
|
|
if (_SLw32_Hstdin != INVALID_HANDLE_VALUE)
|
|
return 0;
|
|
|
|
#if 1
|
|
/* stdin may have been redirected. So try this */
|
|
_SLw32_Hstdin = CreateFile ("CONIN$", GENERIC_READ|GENERIC_WRITE,
|
|
FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
|
|
OPEN_EXISTING, 0, NULL);
|
|
if (_SLw32_Hstdin == INVALID_HANDLE_VALUE)
|
|
return -1;
|
|
#else
|
|
if (INVALID_HANDLE_VALUE == (_SLw32_Hstdin = GetStdHandle(STD_INPUT_HANDLE)))
|
|
return -1;
|
|
#endif
|
|
|
|
if (FALSE == SetConsoleMode(_SLw32_Hstdin, ENABLE_WINDOW_INPUT|ENABLE_MOUSE_INPUT))
|
|
{
|
|
_SLw32_Hstdin = INVALID_HANDLE_VALUE;
|
|
return -1;
|
|
}
|
|
|
|
if (abort_char > 0)
|
|
SLang_Abort_Char = abort_char;
|
|
|
|
return 0;
|
|
}
|
|
/* SLang_init_tty */
|
|
|
|
/*----------------------------------------------------------------------*\
|
|
* Function: void SLang_reset_tty (void);
|
|
*
|
|
* reset the tty before exiting
|
|
\*----------------------------------------------------------------------*/
|
|
void SLang_reset_tty (void)
|
|
{
|
|
_SLw32_Hstdin = INVALID_HANDLE_VALUE;
|
|
set_ctrl_break (1);
|
|
}
|
|
|
|
static int process_mouse_event (MOUSE_EVENT_RECORD *m)
|
|
{
|
|
char buf [8];
|
|
|
|
if (Process_Mouse_Events == 0)
|
|
return -1;
|
|
|
|
if (m->dwEventFlags)
|
|
return -1; /* double click or movement event */
|
|
|
|
/* A button was either pressed or released. Now make sure that
|
|
* the shift keys were not also pressed.
|
|
*/
|
|
if (m->dwControlKeyState
|
|
& (LEFT_ALT_PRESSED|RIGHT_ALT_PRESSED
|
|
|LEFT_CTRL_PRESSED|RIGHT_CTRL_PRESSED
|
|
|SHIFT_PRESSED))
|
|
return -1;
|
|
|
|
/* We have a simple press or release. Encode it as an escape sequence
|
|
* and buffer the result. The encoding is:
|
|
* 'ESC [ M b x y'
|
|
* where b represents the button state, and x,y represent the coordinates.
|
|
* The ESC is handled by the calling routine.
|
|
*/
|
|
if (m->dwButtonState & 1) buf[3] = ' ';
|
|
else if (m->dwButtonState & 2) buf[3] = ' ' + 2;
|
|
else if (m->dwButtonState & 4) buf[3] = ' ' + 1;
|
|
else return -1;
|
|
|
|
buf[0] = 27;
|
|
buf[1] = '[';
|
|
buf[2] = 'M';
|
|
|
|
|
|
buf[4] = 1 + ' ' + m->dwMousePosition.X;
|
|
buf[5] = 1 + ' ' + m->dwMousePosition.Y;
|
|
|
|
return SLang_buffer_keystring ((unsigned char *)buf, 6);
|
|
}
|
|
|
|
static int process_key_event (KEY_EVENT_RECORD *key)
|
|
{
|
|
unsigned int key_state = 0;
|
|
unsigned int scan;
|
|
char c1;
|
|
DWORD d = key->dwControlKeyState;
|
|
unsigned char buf[4];
|
|
|
|
if (!key->bKeyDown) return 0;
|
|
if (d & (LEFT_ALT_PRESSED | RIGHT_ALT_PRESSED))
|
|
key_state |= _SLTT_KEY_ALT;
|
|
if (d & (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED))
|
|
key_state |= _SLTT_KEY_CTRL;
|
|
if (d & SHIFT_PRESSED)
|
|
key_state |= _SLTT_KEY_SHIFT;
|
|
|
|
scan = key->wVirtualScanCode;
|
|
|
|
switch (scan)
|
|
{
|
|
case 0x00E: /* backspace */
|
|
return SLang_buffer_keystring ((unsigned char *)"\x7F", 1);
|
|
|
|
case 0x003: /* 2 key */
|
|
if (key_state & _SLTT_KEY_ALT)
|
|
break;
|
|
/* Drop */
|
|
case 0x039: /* space */
|
|
if (key_state & _SLTT_KEY_CTRL)
|
|
return SLang_buffer_keystring ((unsigned char *)"\x00\x03", 2);
|
|
break;
|
|
|
|
case 0x007: /* 6 key */
|
|
if (_SLTT_KEY_CTRL == (key_state & (_SLTT_KEY_ALT|_SLTT_KEY_CTRL)))
|
|
return SLang_buffer_keystring ((unsigned char *)"\x1E", 1); /* Ctrl-^ */
|
|
break;
|
|
|
|
case 0x00C: /* -/_ key */
|
|
if (_SLTT_KEY_CTRL == (key_state & (_SLTT_KEY_ALT|_SLTT_KEY_CTRL)))
|
|
return SLang_buffer_keystring ((unsigned char *)"\x1F", 1);
|
|
break;
|
|
|
|
case 0x00F: /* TAB */
|
|
if (_SLTT_KEY_SHIFT == key_state)
|
|
return SLang_buffer_keystring ((unsigned char *)"\x00\x09", 2);
|
|
break;
|
|
|
|
case 0xE02F: /* KEYPAD SLASH */
|
|
case 0x037: /* KEYPAD STAR */
|
|
case 0x04A: /* KEYPAD MINUS */
|
|
case 0x04E: /* KEYPAD PLUS */
|
|
if (d & NUMLOCK_ON)
|
|
break;
|
|
case 0x047: /* KEYPAD HOME */
|
|
case 0x048: /* KEYPAD UP */
|
|
case 0x049: /* KEYPAD PGUP */
|
|
case 0x04B: /* KEYPAD LEFT */
|
|
case 0x04C: /* KEYPAD 5 */
|
|
case 0x04D: /* KEYPAD RIGHT */
|
|
case 0x04F: /* KEYPAD END */
|
|
case 0x050: /* KEYPAD DOWN */
|
|
case 0x051: /* KEYPAD PGDN */
|
|
case 0x052: /* KEYPAD INSERT */
|
|
case 0x053: /* KEYPAD DEL */
|
|
if (d & ENHANCED_KEY)
|
|
scan |= 0xE000;
|
|
else
|
|
{
|
|
if (d & NUMLOCK_ON)
|
|
break;
|
|
}
|
|
(void) _SLpc_convert_scancode (scan, key_state, 0);
|
|
return 0;
|
|
|
|
case 0x3b: /* F1 */
|
|
case 0x3c:
|
|
case 0x3d:
|
|
case 0x3e:
|
|
case 0x3f:
|
|
case 0x40:
|
|
case 0x41:
|
|
case 0x42:
|
|
case 0x43:
|
|
case 0x44:
|
|
case 0x57:
|
|
case 0x58: /* F12 */
|
|
(void) _SLpc_convert_scancode (scan, key_state, 0);
|
|
}
|
|
|
|
c1 = key->uChar.AsciiChar;
|
|
if (c1 != 0)
|
|
{
|
|
if (_SLTT_KEY_ALT == (key_state & (_SLTT_KEY_ALT|_SLTT_KEY_CTRL)))
|
|
{
|
|
buf[0] = 27;
|
|
buf[1] = c1;
|
|
return SLang_buffer_keystring (buf, 2);
|
|
}
|
|
if (c1 == SLang_Abort_Char)
|
|
{
|
|
if (SLang_Ignore_User_Abort == 0) SLang_Error = USER_BREAK;
|
|
SLKeyBoard_Quit = 1;
|
|
}
|
|
buf[0] = c1;
|
|
return SLang_buffer_keystring (buf, 1);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void process_console_records(void)
|
|
{
|
|
INPUT_RECORD record;
|
|
DWORD bytesRead;
|
|
DWORD n = 0;
|
|
|
|
if (FALSE == GetNumberOfConsoleInputEvents(_SLw32_Hstdin, &n))
|
|
return;
|
|
|
|
while (n > 0)
|
|
{
|
|
ReadConsoleInput(_SLw32_Hstdin, &record, 1, &bytesRead);
|
|
switch (record.EventType)
|
|
{
|
|
case KEY_EVENT:
|
|
(void) process_key_event(&record.Event.KeyEvent);
|
|
break;
|
|
|
|
case MOUSE_EVENT:
|
|
process_mouse_event(&record.Event.MouseEvent);
|
|
break;
|
|
|
|
case WINDOW_BUFFER_SIZE_EVENT:
|
|
/* process_resize_records(&record.Event.WindowBufferSizeEvent); */
|
|
break;
|
|
}
|
|
n--;
|
|
}
|
|
}
|
|
|
|
/*----------------------------------------------------------------------*\
|
|
* Function: int _SLsys_input_pending (int tsecs);
|
|
*
|
|
* sleep for *tsecs tenths of a sec waiting for input
|
|
\*----------------------------------------------------------------------*/
|
|
int _SLsys_input_pending (int tsecs)
|
|
{
|
|
long ms;
|
|
|
|
if (_SLw32_Hstdin == INVALID_HANDLE_VALUE)
|
|
return -1;
|
|
|
|
if (tsecs < 0) ms = -tsecs; /* specifies 1/1000 */
|
|
else ms = tsecs * 100L; /* convert 1/10 to 1/1000 secs */
|
|
|
|
process_console_records ();
|
|
while ((ms > 0)
|
|
&& (SLang_Input_Buffer_Len == 0))
|
|
{
|
|
long t;
|
|
|
|
t = GetTickCount ();
|
|
|
|
(void) WaitForSingleObject (_SLw32_Hstdin, ms);
|
|
process_console_records ();
|
|
ms -= GetTickCount () - t;
|
|
}
|
|
|
|
return SLang_Input_Buffer_Len;
|
|
}
|
|
|
|
/*----------------------------------------------------------------------*\
|
|
* Function: unsigned int _SLsys_getkey (void);
|
|
*
|
|
* wait for and get the next available keystroke.
|
|
* Also re-maps some useful keystrokes.
|
|
*
|
|
* Backspace (^H) => Del (127)
|
|
* Ctrl-Space => ^@ (^@^3 - a pc NUL char)
|
|
* extended keys are prefixed by a null character
|
|
\*----------------------------------------------------------------------*/
|
|
unsigned int _SLsys_getkey (void)
|
|
{
|
|
/* Check the input buffer because _SLsys_input_pending may have been
|
|
* called prior to this to stuff the input buffer.
|
|
*/
|
|
if (SLang_Input_Buffer_Len)
|
|
return SLang_getkey ();
|
|
|
|
if (_SLw32_Hstdin == INVALID_HANDLE_VALUE)
|
|
return SLANG_GETKEY_ERROR;
|
|
|
|
while (1)
|
|
{
|
|
int status;
|
|
|
|
if (SLKeyBoard_Quit)
|
|
return SLang_Abort_Char;
|
|
|
|
status = _SLsys_input_pending (600);
|
|
if (status == -1)
|
|
return SLANG_GETKEY_ERROR;
|
|
|
|
if (status > 0)
|
|
return SLang_getkey ();
|
|
}
|
|
}
|
|
|
|
/*----------------------------------------------------------------------*\
|
|
* Function: int SLang_set_abort_signal (void (*handler)(int));
|
|
\*----------------------------------------------------------------------*/
|
|
int SLang_set_abort_signal (void (*handler)(int))
|
|
{
|
|
if (_SLw32_Hstdin == INVALID_HANDLE_VALUE)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int SLtt_set_mouse_mode (int mode, int force)
|
|
{
|
|
(void) force;
|
|
|
|
Process_Mouse_Events = mode;
|
|
return 0;
|
|
}
|