512 lines
14 KiB
C
512 lines
14 KiB
C
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/* Public Domain Curses */
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/* MS C doesn't return flags from int86() */
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#ifdef MSC
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# define USE_KBHIT
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#endif
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#ifdef USE_KBHIT
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# include <conio.h>
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#endif
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#include "pdcdos.h"
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RCSID("$Id: pdckbd.c,v 1.87 2008/07/13 16:08:17 wmcbrine Exp $")
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/*man-start**************************************************************
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Name: pdckbd
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Synopsis:
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unsigned long PDC_get_input_fd(void);
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Description:
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PDC_get_input_fd() returns the file descriptor that PDCurses
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reads its input from. It can be used for select().
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Portability X/Open BSD SYS V
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PDC_get_input_fd - - -
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**man-end****************************************************************/
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#ifdef __DJGPP__
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# include <fcntl.h>
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# include <io.h>
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# include <signal.h>
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#endif
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/************************************************************************
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* Table for key code translation of function keys in keypad mode *
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* These values are for strict IBM keyboard compatibles only *
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************************************************************************/
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static short key_table[] =
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{
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-1, ALT_ESC, -1, 0,
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-1, -1, -1, -1,
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-1, -1, -1, -1,
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-1, -1, ALT_BKSP, KEY_BTAB,
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ALT_Q, ALT_W, ALT_E, ALT_R,
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ALT_T, ALT_Y, ALT_U, ALT_I,
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ALT_O, ALT_P, ALT_LBRACKET, ALT_RBRACKET,
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ALT_ENTER, -1, ALT_A, ALT_S,
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ALT_D, ALT_F, ALT_G, ALT_H,
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ALT_J, ALT_K, ALT_L, ALT_SEMICOLON,
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ALT_FQUOTE, ALT_BQUOTE, -1, ALT_BSLASH,
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ALT_Z, ALT_X, ALT_C, ALT_V,
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ALT_B, ALT_N, ALT_M, ALT_COMMA,
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ALT_STOP, ALT_FSLASH, -1, ALT_PADSTAR,
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-1, -1, -1, KEY_F(1),
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KEY_F(2), KEY_F(3), KEY_F(4), KEY_F(5),
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KEY_F(6), KEY_F(7), KEY_F(8), KEY_F(9),
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KEY_F(10), -1, -1, KEY_HOME,
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KEY_UP, KEY_PPAGE, ALT_PADMINUS, KEY_LEFT,
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KEY_B2, KEY_RIGHT, ALT_PADPLUS, KEY_END,
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KEY_DOWN, KEY_NPAGE, KEY_IC, KEY_DC,
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KEY_F(13), KEY_F(14), KEY_F(15), KEY_F(16),
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KEY_F(17), KEY_F(18), KEY_F(19), KEY_F(20),
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KEY_F(21), KEY_F(22), KEY_F(25), KEY_F(26),
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KEY_F(27), KEY_F(28), KEY_F(29), KEY_F(30),
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KEY_F(31), KEY_F(32), KEY_F(33), KEY_F(34),
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KEY_F(37), KEY_F(38), KEY_F(39), KEY_F(40),
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KEY_F(41), KEY_F(42), KEY_F(43), KEY_F(44),
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KEY_F(45), KEY_F(46), -1, CTL_LEFT,
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CTL_RIGHT, CTL_END, CTL_PGDN, CTL_HOME,
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ALT_1, ALT_2, ALT_3, ALT_4,
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ALT_5, ALT_6, ALT_7, ALT_8,
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ALT_9, ALT_0, ALT_MINUS, ALT_EQUAL,
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CTL_PGUP, KEY_F(11), KEY_F(12), KEY_F(23),
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KEY_F(24), KEY_F(35), KEY_F(36), KEY_F(47),
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KEY_F(48), CTL_UP, CTL_PADMINUS, CTL_PADCENTER,
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CTL_PADPLUS, CTL_DOWN, CTL_INS, CTL_DEL,
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CTL_TAB, CTL_PADSLASH, CTL_PADSTAR, ALT_HOME,
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ALT_UP, ALT_PGUP, -1, ALT_LEFT,
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-1, ALT_RIGHT, -1, ALT_END,
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ALT_DOWN, ALT_PGDN, ALT_INS, ALT_DEL,
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ALT_PADSLASH, ALT_TAB, ALT_PADENTER, -1
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};
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unsigned long pdc_key_modifiers = 0L;
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static struct {unsigned short pressed, released;} button[3];
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static bool mouse_avail = FALSE, mouse_vis = FALSE, mouse_moved = FALSE,
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mouse_button = FALSE, key_pressed = FALSE;
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static unsigned char mouse_scroll = 0;
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static PDCREGS ms_regs, old_ms;
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static unsigned short shift_status, old_shift = 0;
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static unsigned char keyboard_function = 0xff, shift_function = 0xff,
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check_function = 0xff;
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static const unsigned short button_map[3] = {0, 2, 1};
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unsigned long PDC_get_input_fd(void)
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{
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PDC_LOG(("PDC_get_input_fd() - called\n"));
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return (unsigned long)fileno(stdin);
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}
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void PDC_set_keyboard_binary(bool on)
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{
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PDC_LOG(("PDC_set_keyboard_binary() - called\n"));
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#ifdef __DJGPP__
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setmode(fileno(stdin), on ? O_BINARY : O_TEXT);
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signal(SIGINT, on ? SIG_IGN : SIG_DFL);
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#endif
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}
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/* check if a key or mouse event is waiting */
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bool PDC_check_key(void)
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{
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PDCREGS regs;
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if (shift_function == 0xff)
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{
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int scan;
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/* get shift status for all keyboards */
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regs.h.ah = 0x02;
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PDCINT(0x16, regs);
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scan = regs.h.al;
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/* get shift status for enhanced keyboards */
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regs.h.ah = 0x12;
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PDCINT(0x16, regs);
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if (scan == regs.h.al && getdosmembyte(0x496) == 0x10)
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{
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keyboard_function = 0x10;
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check_function = 0x11;
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shift_function = 0x12;
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}
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else
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{
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keyboard_function = 0;
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check_function = 1;
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shift_function = 2;
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}
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}
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regs.h.ah = shift_function;
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PDCINT(0x16, regs);
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shift_status = regs.W.ax;
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if (mouse_vis)
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{
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unsigned short i;
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ms_regs.W.ax = 3;
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PDCINT(0x33, ms_regs);
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mouse_button = FALSE;
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for (i = 0; i < 3; i++)
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{
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regs.W.ax = 6;
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regs.W.bx = button_map[i];
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PDCINT(0x33, regs);
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button[i].released = regs.W.bx;
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if (regs.W.bx)
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{
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ms_regs.W.cx = regs.W.cx;
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ms_regs.W.dx = regs.W.dx;
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mouse_button = TRUE;
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}
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regs.W.ax = 5;
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regs.W.bx = button_map[i];
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PDCINT(0x33, regs);
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button[i].pressed = regs.W.bx;
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if (regs.W.bx)
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{
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ms_regs.W.cx = regs.W.cx;
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ms_regs.W.dx = regs.W.dx;
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mouse_button = TRUE;
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}
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}
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mouse_scroll = ms_regs.h.bh;
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mouse_moved = !mouse_button && ms_regs.h.bl &&
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ms_regs.h.bl == old_ms.h.bl &&
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(((ms_regs.W.cx ^ old_ms.W.cx) >> 3) ||
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((ms_regs.W.dx ^ old_ms.W.dx) >> 3));
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if (mouse_scroll || mouse_button || mouse_moved)
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return TRUE;
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}
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if (old_shift && !shift_status) /* modifier released */
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{
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if (!key_pressed && SP->return_key_modifiers)
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return TRUE;
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}
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else if (!old_shift && shift_status) /* modifier pressed */
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key_pressed = FALSE;
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old_shift = shift_status;
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#ifndef USE_KBHIT
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regs.h.ah = check_function;
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PDCINT(0x16, regs);
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return !(regs.W.flags & 64);
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#else
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return kbhit();
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#endif
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}
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static int _process_mouse_events(void)
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{
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int i;
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short shift_flags = 0;
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memset(&pdc_mouse_status, 0, sizeof(pdc_mouse_status));
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key_pressed = TRUE;
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old_shift = shift_status;
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SP->key_code = TRUE;
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/* Set shift modifiers */
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if (shift_status & 3)
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shift_flags |= BUTTON_SHIFT;
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if (shift_status & 4)
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shift_flags |= BUTTON_CONTROL;
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if (shift_status & 8)
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shift_flags |= BUTTON_ALT;
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/* Scroll wheel support for CuteMouse */
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if (mouse_scroll)
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{
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pdc_mouse_status.changes = mouse_scroll & 0x80 ?
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PDC_MOUSE_WHEEL_UP : PDC_MOUSE_WHEEL_DOWN;
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pdc_mouse_status.x = -1;
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pdc_mouse_status.y = -1;
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return KEY_MOUSE;
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}
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if (mouse_moved)
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{
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pdc_mouse_status.changes = PDC_MOUSE_MOVED;
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for (i = 0; i < 3; i++)
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{
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if (ms_regs.h.bl & (1 << button_map[i]))
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{
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pdc_mouse_status.button[i] = BUTTON_MOVED | shift_flags;
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pdc_mouse_status.changes |= (1 << i);
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}
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}
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}
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else /* button event */
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{
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for (i = 0; i < 3; i++)
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{
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if (button[i].pressed)
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{
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/* Check for a click -- a PRESS followed
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immediately by a release */
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if (!button[i].released)
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{
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if (SP->mouse_wait)
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{
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PDCREGS regs;
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napms(SP->mouse_wait);
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regs.W.ax = 6;
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regs.W.bx = button_map[i];
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PDCINT(0x33, regs);
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pdc_mouse_status.button[i] = regs.W.bx ?
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BUTTON_CLICKED : BUTTON_PRESSED;
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}
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else
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pdc_mouse_status.button[i] = BUTTON_PRESSED;
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}
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else
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pdc_mouse_status.button[i] = BUTTON_CLICKED;
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}
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if (button[i].pressed || button[i].released)
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{
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pdc_mouse_status.button[i] |= shift_flags;
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pdc_mouse_status.changes |= (1 << i);
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}
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}
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}
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pdc_mouse_status.x = ms_regs.W.cx >> 3;
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pdc_mouse_status.y = ms_regs.W.dx >> 3;
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old_ms = ms_regs;
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return KEY_MOUSE;
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}
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/* return the next available key or mouse event */
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int PDC_get_key(void)
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{
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PDCREGS regs;
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int key, scan;
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pdc_key_modifiers = 0;
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if (mouse_vis && (mouse_scroll || mouse_button || mouse_moved))
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return _process_mouse_events();
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/* Return modifiers as keys? */
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if (old_shift && !shift_status)
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{
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key = -1;
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if (old_shift & 1)
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key = KEY_SHIFT_R;
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if (old_shift & 2)
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key = KEY_SHIFT_L;
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if (shift_function == 0x12)
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{
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if (old_shift & 0x400)
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key = KEY_CONTROL_R;
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if (old_shift & 0x100)
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key = KEY_CONTROL_L;
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if (old_shift & 0x800)
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key = KEY_ALT_R;
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if (old_shift & 0x200)
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key = KEY_ALT_L;
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}
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else
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{
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if (old_shift & 4)
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key = KEY_CONTROL_R;
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if (old_shift & 8)
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key = KEY_ALT_R;
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}
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key_pressed = FALSE;
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old_shift = shift_status;
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SP->key_code = TRUE;
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return key;
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}
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regs.h.ah = keyboard_function;
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PDCINT(0x16, regs);
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key = regs.h.al;
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scan = regs.h.ah;
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if (SP->save_key_modifiers)
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{
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if (shift_status & 3)
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pdc_key_modifiers |= PDC_KEY_MODIFIER_SHIFT;
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if (shift_status & 4)
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pdc_key_modifiers |= PDC_KEY_MODIFIER_CONTROL;
|
||
|
|
|
||
|
|
if (shift_status & 8)
|
||
|
|
pdc_key_modifiers |= PDC_KEY_MODIFIER_ALT;
|
||
|
|
|
||
|
|
if (shift_status & 0x20)
|
||
|
|
pdc_key_modifiers |= PDC_KEY_MODIFIER_NUMLOCK;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (scan == 0x1c && key == 0x0a) /* ^Enter */
|
||
|
|
key = CTL_ENTER;
|
||
|
|
else if (scan == 0xe0 && key == 0x0d) /* PadEnter */
|
||
|
|
key = PADENTER;
|
||
|
|
else if (scan == 0xe0 && key == 0x0a) /* ^PadEnter */
|
||
|
|
key = CTL_PADENTER;
|
||
|
|
else if (scan == 0x37 && key == 0x2a) /* Star */
|
||
|
|
key = PADSTAR;
|
||
|
|
else if (scan == 0x4a && key == 0x2d) /* Minus */
|
||
|
|
key = PADMINUS;
|
||
|
|
else if (scan == 0x4e && key == 0x2b) /* Plus */
|
||
|
|
key = PADPLUS;
|
||
|
|
else if (scan == 0xe0 && key == 0x2f) /* Slash */
|
||
|
|
key = PADSLASH;
|
||
|
|
else if (key == 0x00 || (key == 0xe0 && scan > 53 && scan != 86))
|
||
|
|
key = (scan > 0xa7) ? -1 : key_table[scan];
|
||
|
|
|
||
|
|
if (shift_status & 3)
|
||
|
|
{
|
||
|
|
switch (key)
|
||
|
|
{
|
||
|
|
case KEY_HOME: /* Shift Home */
|
||
|
|
key = KEY_SHOME;
|
||
|
|
break;
|
||
|
|
case KEY_UP: /* Shift Up */
|
||
|
|
key = KEY_SUP;
|
||
|
|
break;
|
||
|
|
case KEY_PPAGE: /* Shift PgUp */
|
||
|
|
key = KEY_SPREVIOUS;
|
||
|
|
break;
|
||
|
|
case KEY_LEFT: /* Shift Left */
|
||
|
|
key = KEY_SLEFT;
|
||
|
|
break;
|
||
|
|
case KEY_RIGHT: /* Shift Right */
|
||
|
|
key = KEY_SRIGHT;
|
||
|
|
break;
|
||
|
|
case KEY_END: /* Shift End */
|
||
|
|
key = KEY_SEND;
|
||
|
|
break;
|
||
|
|
case KEY_DOWN: /* Shift Down */
|
||
|
|
key = KEY_SDOWN;
|
||
|
|
break;
|
||
|
|
case KEY_NPAGE: /* Shift PgDn */
|
||
|
|
key = KEY_SNEXT;
|
||
|
|
break;
|
||
|
|
case KEY_IC: /* Shift Ins */
|
||
|
|
key = KEY_SIC;
|
||
|
|
break;
|
||
|
|
case KEY_DC: /* Shift Del */
|
||
|
|
key = KEY_SDC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
key_pressed = TRUE;
|
||
|
|
SP->key_code = ((unsigned)key >= 256);
|
||
|
|
|
||
|
|
return key;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* discard any pending keyboard or mouse input -- this is the core
|
||
|
|
routine for flushinp() */
|
||
|
|
|
||
|
|
void PDC_flushinp(void)
|
||
|
|
{
|
||
|
|
PDC_LOG(("PDC_flushinp() - called\n"));
|
||
|
|
|
||
|
|
/* Force the BIOS keyboard buffer head and tail pointers to be
|
||
|
|
the same... Real nasty trick... */
|
||
|
|
|
||
|
|
setdosmemword(0x41a, getdosmemword(0x41c));
|
||
|
|
}
|
||
|
|
|
||
|
|
int PDC_mouse_set(void)
|
||
|
|
{
|
||
|
|
PDCREGS regs;
|
||
|
|
unsigned long mbe = SP->_trap_mbe;
|
||
|
|
|
||
|
|
if (mbe && !mouse_avail)
|
||
|
|
{
|
||
|
|
regs.W.ax = 0;
|
||
|
|
PDCINT(0x33, regs);
|
||
|
|
|
||
|
|
mouse_avail = !!(regs.W.ax);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (mbe)
|
||
|
|
{
|
||
|
|
if (mouse_avail && !mouse_vis)
|
||
|
|
{
|
||
|
|
memset(&old_ms, 0, sizeof(old_ms));
|
||
|
|
|
||
|
|
regs.W.ax = 1;
|
||
|
|
PDCINT(0x33, regs);
|
||
|
|
|
||
|
|
mouse_vis = TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if (mouse_avail && mouse_vis)
|
||
|
|
{
|
||
|
|
regs.W.ax = 2;
|
||
|
|
PDCINT(0x33, regs);
|
||
|
|
|
||
|
|
mouse_vis = FALSE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return (mouse_avail || !mbe) ? OK : ERR;
|
||
|
|
}
|
||
|
|
|
||
|
|
int PDC_modifiers_set(void)
|
||
|
|
{
|
||
|
|
key_pressed = FALSE;
|
||
|
|
|
||
|
|
return OK;
|
||
|
|
}
|