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Annotation of 43BSDTahoe/ucb/tn3270/sys_curses/terminal.h, revision 1.1.1.1

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 this notice is preserved and that due credit is given
                      7:  * to the University of California at Berkeley. The name of the University
                      8:  * may not be used to endorse or promote products derived from this
                      9:  * software without specific prior written permission. This software
                     10:  * is provided ``as is'' without express or implied warranty.
                     11:  *
                     12:  *     @(#)terminal.h  3.2 (Berkeley) 3/28/88
                     13:  */
                     14: 
                     15: #define        INCLUDED_TERMINAL
                     16: 
                     17: /*
                     18:  * In the situation where we have a copy of the terminal screen in front
                     19:  * of us, here are some macros to deal with them.
                     20:  */
                     21: 
                     22: #define TermAttributes(x)      (TermIsStartField(x)? GetTerminal(x)&0xff : \
                     23:                                    GetTerminal(WhereTermAttrByte(x))&0xff)
                     24: #define TermIsStartField(x)    ((GetTerminal(x)&ATTR_MASK) == ATTR_MASK)
                     25: #define TermNewField(p,a)      SetTerminal(p, (a)|ATTR_MASK)
                     26: #define TermDeleteField(p)     SetTerminal(p, 0)
                     27: #define TermIsNonDisplay(x)    \
                     28:                    ((TermAttributes(x)&ATTR_DSPD_MASK) == ATTR_DSPD_NONDISPLAY)
                     29: #define TermIsHighlighted(x) \
                     30:                (((TermAttributes(x)&ATTR_DSPD_MASK) == ATTR_DSPD_HIGH) \
                     31:                                    && !TermIsStartField(x))
                     32: 
                     33: #define TerminalCharacterAttr(c,p,a)   (IsNonDisplayAttr(a) ? ' ':c)
                     34: #define TerminalCharacter(c,p) TerminalCharacterAttr(c,p,FieldAttributes(p))
                     35: 
                     36: #define NeedToRedisplayFields(p) ((TermIsNonDisplay(p) != IsNonDisplay(p)) || \
                     37:                                (TermIsHighlighted(p) != IsHighlighted(p)))
                     38: #define NeedToRedisplayFieldsAttr(p,c) ( \
                     39:                        (TermIsNonDisplay(p) != IsNonDisplayAttr(c)) || \
                     40:                        (TermIsHighlighted(p) != IsHighlightedAttr(c)))
                     41: 
                     42: #define NotVisuallyCompatibleAttributes(p,c,d) ( \
                     43:                        (IsNonDisplayAttr(c) != IsNonDisplayAttr(d)) || \
                     44:                        (IsHighlightedAttr(c) != IsHighlightedAttr(d)))
                     45: 
                     46: #define NeedToRedisplayAttr(c,p,a) \
                     47:                        ((c != GetTerminal(p)) || NeedToRedisplayFieldsAttr(p,a))
                     48: #define NeedToRedisplay(c,p)   NeedToRedisplayAttr(c,p,FieldAttributes(p))
                     49: 
                     50: 
                     51: #define GetTerminal(i)         GetGeneric(i, Terminal)
                     52: #define GetTerminalPointer(p)  GetGenericPointer(p)
                     53: #define SetTerminal(i,c)       SetGeneric(i,c,Terminal)

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