projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 0b5c625e GM |
1 | /* |
| 2 | * @(#)screen.h 3.1 10/29/86 | |
| 3 | */ | |
| 4 | ||
| 5 | #define INCLUDED_TERMINAL | |
| 6 | ||
| 7 | #if defined(SLOWSCREEN) | |
| 8 | ||
| 9 | /* | |
| 10 | * In the situation where we have a copy of the terminal screen in front | |
| 11 | * of us, here are some macros to deal with them. | |
| 12 | */ | |
| 13 | ||
| f3fad2d3 GM |
14 | #define TermAttributes(x) (TermIsStartField(x)? GetTerminal(x)&0xff : \ |
| 15 | GetTerminal(WhereTermAttrByte(x))&0xff) | |
| 16 | #define TermIsStartField(x) (GetTerminal(x)&ATTR_MASK) | |
| 17 | #define TermNewField(p,a) SetTerminal(p, (a)|ATTR_MASK) | |
| 18 | #define TermDeleteField(p) SetTerminal(p, 0) | |
| 0b5c625e GM |
19 | #define TermIsNonDisplay(x) \ |
| 20 | ((TermAttributes(x)&ATTR_DSPD_MASK) == ATTR_DSPD_NONDISPLAY) | |
| 21 | #define TermIsHighlighted(x) \ | |
| 22 | (((TermAttributes(x)&ATTR_DSPD_MASK) == ATTR_DSPD_HIGH) \ | |
| 23 | && !TermIsStartField(x)) | |
| 24 | ||
| 25 | #define TerminalCharacterAttr(c,p,a) (IsNonDisplayAttr(a) ? ' ':c) | |
| 26 | #define TerminalCharacter(c,p) TerminalCharacterAttr(c,p,FieldAttributes(p)) | |
| 27 | ||
| 28 | #define NeedToRedisplayFields(p) ((TermIsNonDisplay(p) != IsNonDisplay(p)) || \ | |
| 29 | (TermIsHighlighted(p) != IsHighlighted(p))) | |
| 30 | #define NeedToRedisplayFieldsAttr(p,c) ( \ | |
| 31 | (TermIsNonDisplay(p) != IsNonDisplayAttr(c)) || \ | |
| 32 | (TermIsHighlighted(p) != IsHighlightedAttr(c))) | |
| 33 | ||
| 34 | #define NotVisuallyCompatibleAttributes(p,c,d) ( \ | |
| 35 | (IsNonDisplayAttr(c) != IsNonDisplayAttr(d)) || \ | |
| 36 | (IsHighlightedAttr(c) != IsHighlightedAttr(d))) | |
| 37 | ||
| 38 | #define NeedToRedisplayAttr(c,p,a) \ | |
| 39 | ((c != GetTerminal(p)) || NeedToRedisplayFieldsAttr(p,a)) | |
| 40 | #define NeedToRedisplay(c,p) NeedToRedisplayAttr(c,p,FieldAttributes(p)) | |
| 41 | ||
| 0b5c625e | 42 | #endif /* defined(SLOWSCREEN) */ |
| f3fad2d3 GM |
43 | |
| 44 | #define GetTerminal(i) GetGeneric(i, Terminal) | |
| 45 | #define GetTerminalPointer(p) GetGenericPointer(p) | |
| 46 | #define SetTerminal(i,c) SetGeneric(i,c,Terminal) |