libpayload: Rename PDCurses-3.4 to PDCurses
Change-Id: If881ec130833c7e7e62caa3d31e350a531f5bc8e Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: http://review.coreboot.org/12398 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
Stefan Reinauer
410
payloads/libpayload/curses/PDCurses/pdcurses/getch.c
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410
payloads/libpayload/curses/PDCurses/pdcurses/getch.c
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/* Public Domain Curses */
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#include <curspriv.h>
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RCSID("$Id: getch.c,v 1.72 2008/07/13 16:08:18 wmcbrine Exp $")
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/*man-start**************************************************************
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Name: getch
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Synopsis:
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int getch(void);
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int wgetch(WINDOW *win);
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int mvgetch(int y, int x);
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int mvwgetch(WINDOW *win, int y, int x);
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int ungetch(int ch);
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int flushinp(void);
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int get_wch(wint_t *wch);
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int wget_wch(WINDOW *win, wint_t *wch);
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int mvget_wch(int y, int x, wint_t *wch);
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int mvwget_wch(WINDOW *win, int y, int x, wint_t *wch);
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int unget_wch(const wchar_t wch);
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unsigned long PDC_get_key_modifiers(void);
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int PDC_save_key_modifiers(bool flag);
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int PDC_return_key_modifiers(bool flag);
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Description:
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With the getch(), wgetch(), mvgetch(), and mvwgetch() functions,
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a character is read from the terminal associated with the window.
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In nodelay mode, if there is no input waiting, the value ERR is
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returned. In delay mode, the program will hang until the system
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passes text through to the program. Depending on the setting of
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cbreak(), this will be after one character or after the first
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newline. Unless noecho() has been set, the character will also
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be echoed into the designated window.
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If keypad() is TRUE, and a function key is pressed, the token for
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that function key will be returned instead of the raw characters.
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Possible function keys are defined in <curses.h> with integers
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beginning with 0401, whose names begin with KEY_.
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If nodelay(win, TRUE) has been called on the window and no input
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is waiting, the value ERR is returned.
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ungetch() places ch back onto the input queue to be returned by
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the next call to wgetch().
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flushinp() throws away any type-ahead that has been typed by the
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user and has not yet been read by the program.
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PDC_get_key_modifiers() returns the keyboard modifiers (shift,
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control, alt, numlock) effective at the time of the last getch()
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call, if PDC_save_key_modifiers(TRUE) has been called before the
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getch(). Use the macros PDC_KEY_MODIFIER_* to determine which
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modifier(s) were set. PDC_return_key_modifiers() tells getch()
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to return modifier keys pressed alone as keystrokes (KEY_ALT_L,
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etc.). These may not work on all platforms.
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NOTE: getch() and ungetch() are implemented as macros, to avoid
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conflict with many DOS compiler's runtime libraries.
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Return Value:
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These functions return ERR or the value of the character, meta
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character or function key token.
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Portability X/Open BSD SYS V
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getch Y Y Y
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wgetch Y Y Y
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mvgetch Y Y Y
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mvwgetch Y Y Y
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ungetch Y Y Y
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flushinp Y Y Y
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get_wch Y
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wget_wch Y
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mvget_wch Y
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mvwget_wch Y
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unget_wch Y
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PDC_get_key_modifiers - - -
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**man-end****************************************************************/
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#define _INBUFSIZ 512 /* size of terminal input buffer */
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#define NUNGETCH 256 /* max # chars to ungetch() */
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static int c_pindex = 0; /* putter index */
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static int c_gindex = 1; /* getter index */
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static int c_ungind = 0; /* ungetch() push index */
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static int c_ungch[NUNGETCH]; /* array of ungotten chars */
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static int _mouse_key(WINDOW *win)
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{
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int i, key = KEY_MOUSE;
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unsigned long mbe = SP->_trap_mbe;
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/* Filter unwanted mouse events */
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for (i = 0; i < 3; i++)
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{
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if (pdc_mouse_status.changes & (1 << i))
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{
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int shf = i * 5;
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short button = pdc_mouse_status.button[i] & BUTTON_ACTION_MASK;
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if ( (!(mbe & (BUTTON1_PRESSED << shf)) &&
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(button == BUTTON_PRESSED))
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|| (!(mbe & (BUTTON1_CLICKED << shf)) &&
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(button == BUTTON_CLICKED))
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|| (!(mbe & (BUTTON1_DOUBLE_CLICKED << shf)) &&
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(button == BUTTON_DOUBLE_CLICKED))
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|| (!(mbe & (BUTTON1_MOVED << shf)) &&
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(button == BUTTON_MOVED))
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|| (!(mbe & (BUTTON1_RELEASED << shf)) &&
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(button == BUTTON_RELEASED))
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)
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pdc_mouse_status.changes ^= (1 << i);
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}
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}
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if (pdc_mouse_status.changes & PDC_MOUSE_MOVED)
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{
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if (!(mbe & (BUTTON1_MOVED|BUTTON2_MOVED|BUTTON3_MOVED)))
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pdc_mouse_status.changes ^= PDC_MOUSE_MOVED;
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}
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if (pdc_mouse_status.changes &
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(PDC_MOUSE_WHEEL_UP|PDC_MOUSE_WHEEL_DOWN))
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{
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if (!(mbe & MOUSE_WHEEL_SCROLL))
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pdc_mouse_status.changes &=
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~(PDC_MOUSE_WHEEL_UP|PDC_MOUSE_WHEEL_DOWN);
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}
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if (!pdc_mouse_status.changes)
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return -1;
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/* Check for click in slk area */
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i = PDC_mouse_in_slk(pdc_mouse_status.y, pdc_mouse_status.x);
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if (i)
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{
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if (pdc_mouse_status.button[0] & (BUTTON_PRESSED|BUTTON_CLICKED))
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key = KEY_F(i);
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else
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key = -1;
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}
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return key;
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}
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int wgetch(WINDOW *win)
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{
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static int buffer[_INBUFSIZ]; /* character buffer */
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int key, waitcount;
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PDC_LOG(("wgetch() - called\n"));
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if (!win)
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return ERR;
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waitcount = 0;
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/* set the number of 1/20th second napms() calls */
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if (SP->delaytenths)
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waitcount = 2 * SP->delaytenths;
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else
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if (win->_delayms)
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{
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/* Can't really do millisecond intervals, so delay in
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1/20ths of a second (50ms) */
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waitcount = win->_delayms / 50;
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if (!waitcount)
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waitcount = 1;
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}
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/* refresh window when wgetch is called if there have been changes
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to it and it is not a pad */
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if (!(win->_flags & _PAD) && ((!win->_leaveit &&
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(win->_begx + win->_curx != SP->curscol ||
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win->_begy + win->_cury != SP->cursrow)) || is_wintouched(win)))
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wrefresh(win);
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/* if ungotten char exists, remove and return it */
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if (c_ungind)
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return c_ungch[--c_ungind];
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/* if normal and data in buffer */
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if ((!SP->raw_inp && !SP->cbreak) && (c_gindex < c_pindex))
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return buffer[c_gindex++];
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/* prepare to buffer data */
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c_pindex = 0;
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c_gindex = 0;
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/* to get here, no keys are buffered. go and get one. */
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for (;;) /* loop for any buffering */
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{
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/* is there a keystroke ready? */
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if (!PDC_check_key())
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{
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/* if not, handle timeout() and halfdelay() */
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if (SP->delaytenths || win->_delayms)
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{
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if (!waitcount)
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return ERR;
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waitcount--;
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}
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else
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if (win->_nodelay)
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return ERR;
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napms(50); /* sleep for 1/20th second */
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continue; /* then check again */
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}
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/* if there is, fetch it */
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key = PDC_get_key();
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if (SP->key_code)
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{
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/* filter special keys if not in keypad mode */
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if (!win->_use_keypad)
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key = -1;
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/* filter mouse events; translate mouse clicks in the slk
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area to function keys */
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else if (key == KEY_MOUSE)
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key = _mouse_key(win);
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}
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/* unwanted key? loop back */
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if (key == -1)
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continue;
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/* translate CR */
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if (key == '\r' && SP->autocr && !SP->raw_inp)
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key = '\n';
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/* if echo is enabled */
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if (SP->echo && !SP->key_code)
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{
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waddch(win, key);
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wrefresh(win);
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}
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/* if no buffering */
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if (SP->raw_inp || SP->cbreak)
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return key;
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/* if no overflow, put data in buffer */
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if (key == '\b')
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{
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if (c_pindex > c_gindex)
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c_pindex--;
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}
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else
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if (c_pindex < _INBUFSIZ - 2)
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buffer[c_pindex++] = key;
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/* if we got a line */
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if (key == '\n' || key == '\r')
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return buffer[c_gindex++];
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}
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}
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int mvgetch(int y, int x)
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{
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PDC_LOG(("mvgetch() - called\n"));
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if (move(y, x) == ERR)
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return ERR;
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return wgetch(stdscr);
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}
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int mvwgetch(WINDOW *win, int y, int x)
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{
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PDC_LOG(("mvwgetch() - called\n"));
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if (wmove(win, y, x) == ERR)
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return ERR;
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return wgetch(win);
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}
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int PDC_ungetch(int ch)
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{
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PDC_LOG(("ungetch() - called\n"));
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if (c_ungind >= NUNGETCH) /* pushback stack full */
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return ERR;
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c_ungch[c_ungind++] = ch;
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return OK;
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}
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int flushinp(void)
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{
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PDC_LOG(("flushinp() - called\n"));
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PDC_flushinp();
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c_gindex = 1; /* set indices to kill buffer */
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c_pindex = 0;
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c_ungind = 0; /* clear c_ungch array */
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return OK;
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}
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unsigned long PDC_get_key_modifiers(void)
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{
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PDC_LOG(("PDC_get_key_modifiers() - called\n"));
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return pdc_key_modifiers;
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}
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int PDC_save_key_modifiers(bool flag)
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{
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PDC_LOG(("PDC_save_key_modifiers() - called\n"));
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SP->save_key_modifiers = flag;
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return OK;
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}
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int PDC_return_key_modifiers(bool flag)
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{
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PDC_LOG(("PDC_return_key_modifiers() - called\n"));
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SP->return_key_modifiers = flag;
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return PDC_modifiers_set();
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}
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#ifdef PDC_WIDE
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int wget_wch(WINDOW *win, wint_t *wch)
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{
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int key;
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PDC_LOG(("wget_wch() - called\n"));
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if (!wch)
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return ERR;
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key = wgetch(win);
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if (key == ERR)
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return ERR;
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*wch = key;
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return SP->key_code ? KEY_CODE_YES : OK;
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}
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int get_wch(wint_t *wch)
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{
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PDC_LOG(("get_wch() - called\n"));
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return wget_wch(stdscr, wch);
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}
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int mvget_wch(int y, int x, wint_t *wch)
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{
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PDC_LOG(("mvget_wch() - called\n"));
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if (move(y, x) == ERR)
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return ERR;
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return wget_wch(stdscr, wch);
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}
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int mvwget_wch(WINDOW *win, int y, int x, wint_t *wch)
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{
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PDC_LOG(("mvwget_wch() - called\n"));
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if (wmove(win, y, x) == ERR)
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return ERR;
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return wget_wch(win, wch);
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}
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int unget_wch(const wchar_t wch)
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{
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return PDC_ungetch(wch);
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}
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#endif
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