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xkbd.c
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xkbd.c
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/* portable X keyboard patch by Peter Berg Larsen <pebl@diku.dk> */
#include <X11/Xlib.h>
#include <X11/X.h>
#include <X11/Xutil.h>
#include <signal.h>
#include <string.h>
#include "x.h"
#include "kbd.h"
#include "console.h"
#include "cfg.h"
#include "time.h"
#ifndef XK_MISCELLANY /* Escape and other Keysymdefinitions */
# define XK_MISCELLANY
#endif
#ifndef XK_LATIN1 /* Space, a, b etc */
# define XK_LATIN1
#endif
#include <X11/keysymdef.h>
static unsigned char keyboard[128]; /* 0=not pressed, !0=pressed */
static unsigned char old_keyboard[128]; /* 0=not pressed, !0=pressed */
extern Atom x_delete_window_atom,x_wm_protocols_atom;
void kbd_init(void)
{
/* nothing to initialize */
}
void kbd_close(void)
{
/* nothing to close */
}
/* convert key from scancode to key constant */
int remap_out(int k)
{
int remap_table[128]={
0,K_ESCAPE,'1','2','3','4','5','6','7','8','9','0','-','=',K_BACKSPACE,K_TAB,
'q','w','e','r','t','y','u','i','o','p','[',']',K_ENTER,K_LEFT_CTRL,'a','s',
'd','f','g','h','j','k','l',';','\'','`',K_LEFT_SHIFT,'\\','z','x','c','v',
'b','n','m',',','.','/',K_RIGHT_SHIFT,K_NUM_ASTERISK,K_LEFT_ALT,' ',K_CAPS_LOCK,K_F1,K_F2,K_F3,K_F4,K_F5,
K_F6,K_F7,K_F8,K_F9,K_F10,K_NUM_LOCK,K_SCROLL_LOCK,K_NUM7,K_NUM8,K_NUM9,K_NUM_MINUS,K_NUM4,K_NUM5,K_NUM6,K_NUM_PLUS,K_NUM1,
K_NUM2,K_NUM3,K_NUM0,K_NUM_DOT,0,0,0,K_F11,K_F12,K_HOME,K_UP,K_PGUP,K_LEFT,0,K_RIGHT,K_END,
K_DOWN,K_PGDOWN,K_INSERT,K_DELETE,K_NUM_ENTER,K_RIGHT_CTRL,K_PAUSE,K_SYSRQ,K_NUM_SLASH,K_RIGHT_ALT,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
};
return remap_table[k&127];
}
/* convert key constant to scancode */
int remap_in(int k)
{
switch (k)
{
case K_ESCAPE: return 1;
case '1': return 2;
case '2': return 3;
case '3': return 4;
case '4': return 5;
case '5': return 6;
case '6': return 7;
case '7': return 8;
case '8': return 9;
case '9': return 10;
case '0': return 11;
case '-': return 12;
case '=': return 13;
case K_BACKSPACE: return 14;
case K_TAB: return 15;
case 'q': return 16;
case 'w': return 17;
case 'e': return 18;
case 'r': return 19;
case 't': return 20;
case 'y': return 21;
case 'u': return 22;
case 'i': return 23;
case 'o': return 24;
case 'p': return 25;
case '[': return 26;
case ']': return 27;
case K_ENTER: return 28;
case K_LEFT_CTRL: return 29;
case 'a': return 30;
case 's': return 31;
case 'd': return 32;
case 'f': return 33;
case 'g': return 34;
case 'h': return 35;
case 'j': return 36;
case 'k': return 37;
case 'l': return 38;
case ';': return 39;
case '\'': return 40;
case '`': return 41;
case K_LEFT_SHIFT: return 42;
case '\\': return 43;
case 'z': return 44;
case 'x': return 45;
case 'c': return 46;
case 'v': return 47;
case 'b': return 48;
case 'n': return 49;
case 'm': return 50;
case ',': return 51;
case '.': return 52;
case '/': return 53;
case K_RIGHT_SHIFT: return 54;
case K_NUM_ASTERISK: return 55;
case K_LEFT_ALT: return 56;
case ' ': return 57;
case K_CAPS_LOCK: return 58;
case K_F1: return 59;
case K_F2: return 60;
case K_F3: return 61;
case K_F4: return 62;
case K_F5: return 63;
case K_F6: return 64;
case K_F7: return 65;
case K_F8: return 66;
case K_F9: return 67;
case K_F10: return 68;
case K_NUM_LOCK: return 69;
case K_SCROLL_LOCK: return 70;
case K_NUM7: return 71;
case K_NUM8: return 72;
case K_NUM9: return 73;
case K_NUM_MINUS: return 74;
case K_NUM4: return 75;
case K_NUM5: return 76;
case K_NUM6: return 77;
case K_NUM_PLUS: return 78;
case K_NUM1: return 79;
case K_NUM2: return 80;
case K_NUM3: return 81;
case K_NUM0: return 82;
case K_NUM_DOT: return 83;
case K_F11: return 87;
case K_F12: return 88;
case K_NUM_ENTER: return 100;
case K_RIGHT_CTRL: return 101;
case K_NUM_SLASH: return 104;
case K_SYSRQ: return 103;
case K_RIGHT_ALT: return 105;
case K_HOME: return 89;
case K_UP: return 90;
case K_PGUP: return 91;
case K_LEFT: return 92;
case K_RIGHT: return 94;
case K_END: return 95;
case K_DOWN: return 96;
case K_PGDOWN: return 97;
case K_INSERT: return 98;
case K_DELETE: return 99;
case K_PAUSE: return 102;
default: return 0;
}
}
void sigwinch_handler(int);
void signal_handler(int);
/* 31/10/2000 22:31. pebl*/
int keycode2keysym (XKeyEvent* e)
{
KeySym ks;
static char str[256+1];
XLookupString (e, str, 256, &ks, NULL);
if (ks == NoSymbol)
return 0;
switch (ks)
{
case XK_Escape: return 1;
case XK_1: return 2;
case XK_exclam: return 2;
case XK_2: return 3;
case XK_at: return 3;
case XK_3: return 4;
case XK_numbersign: return 4;
case XK_4: return 5;
case XK_dollar: return 5;
case XK_5: return 6;
case XK_percent: return 6;
case XK_6: return 7;
case XK_asciicircum: return 7;
case XK_7: return 8;
case XK_ampersand: return 8;
case XK_8: return 9;
case XK_asterisk: return 9;
case XK_9: return 10;
case XK_parenleft: return 10;
case XK_0: return 11;
case XK_parenright: return 11;
case XK_minus: return 12;
case XK_underscore: return 12;
case XK_equal: return 13;
case XK_plus: return 13;
case XK_BackSpace: return 14;
case XK_Tab: return 15;
case XK_q: return 16;
case XK_Q: return 16;
case XK_w: return 17;
case XK_W: return 17;
case XK_e: return 18;
case XK_E: return 18;
case XK_r: return 19;
case XK_R: return 19;
case XK_t: return 20;
case XK_T: return 20;
case XK_y: return 21;
case XK_Y: return 21;
case XK_u: return 22;
case XK_U: return 22;
case XK_i: return 23;
case XK_I: return 23;
case XK_o: return 24;
case XK_O: return 24;
case XK_p: return 25;
case XK_P: return 25;
case XK_bracketleft: return 26;
case XK_braceleft: return 26;
case XK_bracketright: return 27;
case XK_braceright: return 27;
case XK_Return: return 28;
case XK_Control_L: return 29;
case XK_a: return 30;
case XK_A: return 30;
case XK_s: return 31;
case XK_S: return 31;
case XK_D: return 32;
case XK_d: return 32;
case XK_f: return 33;
case XK_F: return 33;
case XK_g: return 34;
case XK_G: return 34;
case XK_h: return 35;
case XK_H: return 35;
case XK_j: return 36;
case XK_J: return 36;
case XK_k: return 37;
case XK_K: return 37;
case XK_l: return 38;
case XK_L: return 38;
case XK_semicolon: return 39;
case XK_colon: return 39;
case XK_apostrophe: return 40;
case XK_quotedbl: return 40;
case XK_grave: return 41;
case XK_asciitilde: return 41;
case XK_Shift_L: return 42;
case XK_backslash: return 43;
case XK_bar: return 43;
case XK_z: return 44;
case XK_Z: return 44;
case XK_x: return 45;
case XK_X: return 45;
case XK_c: return 46;
case XK_C: return 46;
case XK_v: return 47;
case XK_V: return 47;
case XK_b: return 48;
case XK_B: return 48;
case XK_n: return 49;
case XK_N: return 49;
case XK_m: return 50;
case XK_M: return 50;
case XK_comma: return 51;
case XK_less: return 51;
case XK_period: return 52;
case XK_greater: return 52;
case XK_slash: return 53;
case XK_question: return 53;
case XK_Shift_R: return 54;
case XK_KP_Multiply: return 55;
case XK_Alt_L: return 56;
case XK_space: return 57;
case XK_Caps_Lock: return 58;
case XK_F1: return 59;
case XK_F2: return 60;
case XK_F3: return 61;
case XK_F4: return 62;
case XK_F5: return 63;
case XK_F6: return 64;
case XK_F7: return 65;
case XK_F8: return 66;
case XK_F9: return 67;
case XK_F10: return 68;
case XK_Num_Lock: return 69;
case XK_Scroll_Lock: return 70;
case XK_KP_7: return 71;
case XK_KP_8: return 72;
case XK_KP_9: return 73;
case XK_KP_Subtract: return 74;
case XK_KP_4: return 75;
case XK_KP_5: return 76;
case XK_KP_6: return 77;
case XK_KP_Add: return 78;
case XK_KP_1: return 79;
case XK_KP_2: return 80;
case XK_KP_3: return 81;
case XK_KP_0: return 82;
case XK_KP_Separator: return 83;
case XK_F11: return 87;
case XK_F12: return 88;
case XK_Home: return 89;
case XK_Up: return 90;
case XK_Page_Up: return 91;
case XK_Left: return 92;
case XK_Right: return 94;
case XK_End: return 95;
case XK_Down: return 96;
case XK_Page_Down: return 97;
case XK_Insert: return 98;
case XK_Delete: return 99;
case XK_KP_Enter: return 100;
case XK_Control_R: return 101;
case XK_Pause: return 102;
case XK_Sys_Req: return 103;
case XK_KP_Divide: return 104;
case XK_Alt_R: return 105;
default: return 0;
}
}
/* returns zero if nothing was read, non-zero otherwise */
/* maintains also all window events */
int kbd_update(void)
{
int retval=0,keysym=0;
int n,a;
XEvent event;
memcpy(old_keyboard,keyboard,128);
while((n=XPending(display)))
{
for (a=0;a<n;a++)
{
XNextEvent(display,&event);
switch (event.type)
{
case KeyPress:
retval=1;
keysym = keycode2keysym((XKeyEvent*)&event); /* 31/10/2000 22:31. pebl */
if (keysym > 127)break;
keyboard[keysym]=1;
break;
case KeyRelease:
retval=1;
keysym = keycode2keysym((XKeyEvent*)&event); /* 31/10/2000 22:31. pebl */
if (keysym>127)break;
keyboard[keysym]=0;
break;
case ClientMessage:
if (
event.xclient.format!=32||
event.xclient.message_type!=x_wm_protocols_atom||
event.xclient.data.l[0]!=(signed)x_delete_window_atom
)
break;
[[fallthrough]];
/* This event is destroy window event from window manager */
case DestroyNotify:
#ifdef SIGQUIT
raise(SIGQUIT);
#else
signal_handler(3);
#endif
break;
case ConfigureNotify: /* window was resized */
x_width=event.xconfigure.width/FONT_X_SIZE;
x_height=event.xconfigure.height/FONT_Y_SIZE;
[[fallthrough]];
case Expose: /* window was exposed - redraw it */
#ifdef SIGWINCH
raise(SIGWINCH);
#else
sigwinch_handler(-1);
#endif
break;
}
}
}
/* CTRL-C */
if ((keyboard[29]||keyboard[97])&&keyboard[46])
raise(SIGINT);
return retval;
}
/* returns 1 if given key is pressed, 0 otherwise */
int kbd_is_pressed(int key)
{
int a=remap_in(key);
return a?keyboard[a]:0;
}
/* same as kbd_is_pressed but tests rising edge of the key */
int kbd_was_pressed(int key)
{
int a=remap_in(key);
if (!a)return 0;
return !old_keyboard[remap_in(key)]&&keyboard[remap_in(key)];
}
void kbd_wait_for_key(void)
{
XEvent e;
#ifdef TRI_D
if (TRI_D_ON)
while (
XCheckWindowEvent(display,window2,KeyPressMask|KeyReleaseMask,&e)==False&&
XCheckWindowEvent(display,window,KeyPressMask|KeyReleaseMask,&e)==False
)my_sleep(50000);
else
XWindowEvent(display,window,KeyPressMask|KeyReleaseMask,&e);
#else
XWindowEvent(display,window,KeyPressMask|KeyReleaseMask,&e);
#endif
XPutBackEvent(display,&e);
}