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Annotation of 43BSDReno/usr.bin/tn3270/sys_curses/terminal.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1988 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted
        !             6:  * provided that the above copyright notice and this paragraph are
        !             7:  * duplicated in all such forms and that any documentation,
        !             8:  * advertising materials, and other materials related to such
        !             9:  * distribution and use acknowledge that the software was developed
        !            10:  * by the University of California, Berkeley.  The name of the
        !            11:  * University may not be used to endorse or promote products derived
        !            12:  * from this software without specific prior written permission.
        !            13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            16:  *
        !            17:  *     @(#)terminal.h  4.2 (Berkeley) 5/30/89
        !            18:  */
        !            19: 
        !            20: #define        INCLUDED_TERMINAL
        !            21: 
        !            22: /*
        !            23:  * In the situation where we have a copy of the terminal screen in front
        !            24:  * of us, here are some macros to deal with them.
        !            25:  */
        !            26: 
        !            27: #define TermAttributes(x)      (TermIsStartField(x)? GetTerminal(x)&0xff : \
        !            28:                                    GetTerminal(WhereTermAttrByte(x))&0xff)
        !            29: #define TermIsStartField(x)    ((GetTerminal(x)&ATTR_MASK) == ATTR_MASK)
        !            30: #define TermNewField(p,a)      SetTerminal(p, (a)|ATTR_MASK)
        !            31: #define TermDeleteField(p)     SetTerminal(p, 0)
        !            32: #define TermIsNonDisplay(x)    \
        !            33:                    ((TermAttributes(x)&ATTR_DSPD_MASK) == ATTR_DSPD_NONDISPLAY)
        !            34: #define TermIsHighlighted(x) \
        !            35:                (((TermAttributes(x)&ATTR_DSPD_MASK) == ATTR_DSPD_HIGH) \
        !            36:                                    && !TermIsStartField(x))
        !            37: 
        !            38: #define TerminalCharacterAttr(c,p,a)   (IsNonDisplayAttr(a) ? ' ':c)
        !            39: #define TerminalCharacter(c,p) TerminalCharacterAttr(c,p,FieldAttributes(p))
        !            40: 
        !            41:        /*
        !            42:         * Is the screen formatted?  Some algorithms change depending
        !            43:         * on whether there are any attribute bytes lying around.
        !            44:         */
        !            45: #define        TerminalFormattedScreen() \
        !            46:            ((WhereTermAttrByte(0) != 0) || ((GetTerminal(0)&ATTR_MASK) == ATTR_MASK))
        !            47: 
        !            48: #define NeedToRedisplayFields(p) ((TermIsNonDisplay(p) != IsNonDisplay(p)) || \
        !            49:                                (TermIsHighlighted(p) != IsHighlighted(p)))
        !            50: #define NeedToRedisplayFieldsAttr(p,c) ( \
        !            51:                        (TermIsNonDisplay(p) != IsNonDisplayAttr(c)) || \
        !            52:                        (TermIsHighlighted(p) != IsHighlightedAttr(c)))
        !            53: 
        !            54: #define NotVisuallyCompatibleAttributes(p,c,d) ( \
        !            55:                        (IsNonDisplayAttr(c) != IsNonDisplayAttr(d)) || \
        !            56:                        (IsHighlightedAttr(c) != IsHighlightedAttr(d)))
        !            57: 
        !            58: #define NeedToRedisplayAttr(c,p,a) \
        !            59:                        ((c != GetTerminal(p)) || NeedToRedisplayFieldsAttr(p,a))
        !            60: #define NeedToRedisplay(c,p)   NeedToRedisplayAttr(c,p,FieldAttributes(p))
        !            61: 
        !            62: 
        !            63: #define GetTerminal(i)         GetGeneric(i, Terminal)
        !            64: #define GetTerminalPointer(p)  GetGenericPointer(p)
        !            65: #define SetTerminal(i,c)       SetGeneric(i,c,Terminal)

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