projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 0b5c625e | 1 | /* |
| 0de390c0 KB |
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) %G% | |
| 0b5c625e GM |
13 | */ |
| 14 | ||
| 15 | #define INCLUDED_TERMINAL | |
| 16 | ||
| 0b5c625e GM |
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 | ||
| f3fad2d3 GM |
22 | #define TermAttributes(x) (TermIsStartField(x)? GetTerminal(x)&0xff : \ |
| 23 | GetTerminal(WhereTermAttrByte(x))&0xff) | |
| b052190e | 24 | #define TermIsStartField(x) ((GetTerminal(x)&ATTR_MASK) == ATTR_MASK) |
| f3fad2d3 GM |
25 | #define TermNewField(p,a) SetTerminal(p, (a)|ATTR_MASK) |
| 26 | #define TermDeleteField(p) SetTerminal(p, 0) | |
| 0b5c625e GM |
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 | ||
| f3fad2d3 GM |
50 | |
| 51 | #define GetTerminal(i) GetGeneric(i, Terminal) | |
| 52 | #define GetTerminalPointer(p) GetGenericPointer(p) | |
| 53 | #define SetTerminal(i,c) SetGeneric(i,c,Terminal) |