pdcurses/attr.c

Thu, 23 Jul 2015 18:07:39 +0300

author
Teemu Piippo <tsapii@utu.fi>
date
Thu, 23 Jul 2015 18:07:39 +0300
changeset 97
2d43f05b284c
permissions
-rw-r--r--

Added pdcurses source files, if no curses library is provided, these source files will be fallen back to instead of raising an error. Should make compiling on windows slightly less painful.

/* Public Domain Curses */

#include <curspriv.h>

RCSID("$Id: attr.c,v 1.41 2008/07/13 16:08:17 wmcbrine Exp $")

/*man-start**************************************************************

  Name:                                                         attr

  Synopsis:
        int attroff(chtype attrs);
        int wattroff(WINDOW *win, chtype attrs);
        int attron(chtype attrs);
        int wattron(WINDOW *win, chtype attrs);
        int attrset(chtype attrs);
        int wattrset(WINDOW *win, chtype attrs);
        int standend(void);
        int wstandend(WINDOW *win);
        int standout(void);
        int wstandout(WINDOW *win);

        int color_set(short color_pair, void *opts);
        int wcolor_set(WINDOW *win, short color_pair, void *opts);

        int attr_get(attr_t *attrs, short *color_pair, void *opts);
        int attr_off(attr_t attrs, void *opts);
        int attr_on(attr_t attrs, void *opts);
        int attr_set(attr_t attrs, short color_pair, void *opts);
        int wattr_get(WINDOW *win, attr_t *attrs, short *color_pair,
                void *opts);
        int wattr_off(WINDOW *win, attr_t attrs, void *opts);
        int wattr_on(WINDOW *win, attr_t attrs, void *opts);
        int wattr_set(WINDOW *win, attr_t attrs, short color_pair,
                void *opts);

        int chgat(int n, attr_t attr, short color, const void *opts);
        int mvchgat(int y, int x, int n, attr_t attr, short color,
                const void *opts);
        int mvwchgat(WINDOW *win, int y, int x, int n, attr_t attr,
                short color, const void *opts);
        int wchgat(WINDOW *win, int n, attr_t attr, short color,
                const void *opts);

        chtype getattrs(WINDOW *win);

  Description:
        These functions manipulate the current attributes and/or colors 
        of the named window.  These attributes can be any combination 
        of A_STANDOUT, A_REVERSE, A_BOLD, A_DIM, A_BLINK, A_UNDERLINE.

        These constants are defined in <curses.h> and can be combined
        with the bitwise-OR operator (|).

        The current attributes of a window are applied to all chtypes 
        that are written into the window with waddch(). Attributes are 
        a property of the chtype, and move with the character through 
        any scrolling or insert/delete operations.

        attrset() sets the current attributes of the given window to 
        attrs. attroff() turns off the named attributes without 
        affecting any other attributes; attron() turns them on. 
        color_set() sets the window color to the value of color_pair.

        standout() is the same as attron(A_STANDOUT). standend() is the 
        same as attrset(A_NORMAL); that is, it turns off all attributes.

  Return Value:
        All functions return OK on success and ERR on error.

  Portability                                X/Open    BSD    SYS V
        attroff                                 Y       Y       Y
        wattroff                                Y       Y       Y
        attron                                  Y       Y       Y
        wattron                                 Y       Y       Y
        attrset                                 Y       Y       Y
        wattrset                                Y       Y       Y
        standend                                Y       Y       Y
        wstandend                               Y       Y       Y
        standout                                Y       Y       Y
        wstandout                               Y       Y       Y
        color_set                               Y
        wcolor_set                              Y
        attr_get                                Y
        wattr_get                               Y
        attr_on                                 Y
        wattr_on                                Y
        attr_off                                Y
        wattr_off                               Y
        attr_set                                Y
        wattr_set                               Y
        chgat                                   Y
        wchgat                                  Y
        mvchgat                                 Y
        mvwchgat                                Y
        getattrs                                -

**man-end****************************************************************/

int wattroff(WINDOW *win, chtype attrs)
{
    PDC_LOG(("wattroff() - called\n"));

    if (!win)
        return ERR;

    win->_attrs &= (~attrs & A_ATTRIBUTES);

    return OK;
}

int attroff(chtype attrs)
{
    PDC_LOG(("attroff() - called\n"));

    return wattroff(stdscr, attrs);
}

int wattron(WINDOW *win, chtype attrs)
{
    chtype newcolr, oldcolr, newattr, oldattr;

    PDC_LOG(("wattron() - called\n"));

    if (!win)
        return ERR;

    if ((win->_attrs & A_COLOR) && (attrs & A_COLOR)) 
    {
        oldcolr = win->_attrs & A_COLOR;
        oldattr = win->_attrs ^ oldcolr;
        newcolr = attrs & A_COLOR;
        newattr = (attrs & A_ATTRIBUTES) ^ newcolr;
        newattr |= oldattr;
        win->_attrs = newattr | newcolr;
    }
    else
        win->_attrs |= (attrs & A_ATTRIBUTES);

    return OK;
}

int attron(chtype attrs)
{
    PDC_LOG(("attron() - called\n"));

    return wattron(stdscr, attrs);
}

int wattrset(WINDOW *win, chtype attrs)
{
    PDC_LOG(("wattrset() - called\n"));

    if (!win)
        return ERR;

    win->_attrs = attrs & A_ATTRIBUTES;

    return OK;
}

int attrset(chtype attrs)
{
    PDC_LOG(("attrset() - called\n"));

    return wattrset(stdscr, attrs);
}

int standend(void)
{
    PDC_LOG(("standend() - called\n"));

    return wattrset(stdscr, A_NORMAL);
}

int standout(void)
{
    PDC_LOG(("standout() - called\n"));

    return wattrset(stdscr, A_STANDOUT);
}

int wstandend(WINDOW *win)
{
    PDC_LOG(("wstandend() - called\n"));

    return wattrset(win, A_NORMAL);
}

int wstandout(WINDOW *win)
{
    PDC_LOG(("wstandout() - called\n"));

    return wattrset(win, A_STANDOUT);
}

chtype getattrs(WINDOW *win)
{
    return win ? win->_attrs : 0;
}

int wcolor_set(WINDOW *win, short color_pair, void *opts)
{
    PDC_LOG(("wcolor_set() - called\n"));

    if (!win)
        return ERR;

    win->_attrs = (win->_attrs & ~A_COLOR) | COLOR_PAIR(color_pair);

    return OK;
}

int color_set(short color_pair, void *opts)
{
    PDC_LOG(("color_set() - called\n"));

    return wcolor_set(stdscr, color_pair, opts);
}

int wattr_get(WINDOW *win, attr_t *attrs, short *color_pair, void *opts)
{
    PDC_LOG(("wattr_get() - called\n"));

    if (!win)
        return ERR;

    if (attrs)
        *attrs = win->_attrs & (A_ATTRIBUTES & ~A_COLOR);

    if (color_pair)
        *color_pair = PAIR_NUMBER(win->_attrs);

    return OK;
}

int attr_get(attr_t *attrs, short *color_pair, void *opts)
{
    PDC_LOG(("attr_get() - called\n"));

    return wattr_get(stdscr, attrs, color_pair, opts);
}

int wattr_off(WINDOW *win, attr_t attrs, void *opts)
{
    PDC_LOG(("wattr_off() - called\n"));

    return wattroff(win, attrs);
}

int attr_off(attr_t attrs, void *opts)
{
    PDC_LOG(("attr_off() - called\n"));

    return wattroff(stdscr, attrs);
}

int wattr_on(WINDOW *win, attr_t attrs, void *opts)
{
    PDC_LOG(("wattr_off() - called\n"));

    return wattron(win, attrs);
}

int attr_on(attr_t attrs, void *opts)
{
    PDC_LOG(("attr_on() - called\n"));

    return wattron(stdscr, attrs);
}

int wattr_set(WINDOW *win, attr_t attrs, short color_pair, void *opts)
{
    PDC_LOG(("wattr_set() - called\n"));

    if (!win)
        return ERR;

    win->_attrs = (attrs & (A_ATTRIBUTES & ~A_COLOR)) | COLOR_PAIR(color_pair);

    return OK;
}

int attr_set(attr_t attrs, short color_pair, void *opts)
{
    PDC_LOG(("attr_get() - called\n"));

    return wattr_set(stdscr, attrs, color_pair, opts);
}

int wchgat(WINDOW *win, int n, attr_t attr, short color, const void *opts)
{
    chtype *dest, newattr;
    int startpos, endpos;

    PDC_LOG(("wchgat() - called\n"));

    if (!win)
        return ERR;

    newattr = (attr & A_ATTRIBUTES) | COLOR_PAIR(color);

    startpos = win->_curx;
    endpos = ((n < 0) ? win->_maxx : min(startpos + n, win->_maxx)) - 1;
    dest = win->_y[win->_cury];

    for (n = startpos; n <= endpos; n++)
        dest[n] = (dest[n] & A_CHARTEXT) | newattr;

    n = win->_cury;

    if (startpos < win->_firstch[n] || win->_firstch[n] == _NO_CHANGE)
        win->_firstch[n] = startpos;

    if (endpos > win->_lastch[n])
        win->_lastch[n] = endpos;

    PDC_sync(win);

    return OK;
}

int chgat(int n, attr_t attr, short color, const void *opts)
{
    PDC_LOG(("chgat() - called\n"));

    return wchgat(stdscr, n, attr, color, opts);
}

int mvchgat(int y, int x, int n, attr_t attr, short color, const void *opts)
{
    PDC_LOG(("mvchgat() - called\n"));

    if (move(y, x) == ERR)
        return ERR;

    return wchgat(stdscr, n, attr, color, opts);
}

int mvwchgat(WINDOW *win, int y, int x, int n, attr_t attr, short color,
             const void *opts)
{
    PDC_LOG(("mvwchgat() - called\n"));

    if (wmove(win, y, x) == ERR)
        return ERR;

    return wchgat(win, n, attr, color, opts);
}

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