Mercurial > hg > xemacs-beta
annotate lwlib/xlwgaugeP.h @ 5366:f00192e1cd49
Examining the result of #'length: `eql', not `=', it's better style & cheaper
2011-03-08 Aidan Kehoe <kehoea@parhasard.net>
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It's better style, and cheaper (often one assembler instruction
vs. a C funcall in the byte code), to use `eql' instead of `='
when it's clear what numerical type a given result will be. Change
much of our code to do this, with the help of a byte-compiler
change (not comitted) that looked for calls to #'length (which
always returns an integer) in its args.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Tue, 08 Mar 2011 23:41:52 +0000 |
| parents | abe6d1db359e |
| children | 308d34e9f07d |
| rev | line source |
|---|---|
| 424 | 1 /* Gauge Widget for XEmacs. |
| 2 Copyright (C) 1999 Edward A. Falk | |
| 3 | |
| 4 This file is part of XEmacs. | |
| 5 | |
| 6 XEmacs is free software; you can redistribute it and/or modify it | |
| 7 under the terms of the GNU General Public License as published by the | |
| 8 Free Software Foundation; either version 2, or (at your option) any | |
| 9 later version. | |
| 10 | |
| 11 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU General Public License | |
| 17 along with XEmacs; see the file COPYING. If not, write to | |
| 18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 19 Boston, MA 02111-1307, USA. */ | |
| 20 | |
| 21 /* | |
| 22 * GaugeP.h - Gauge widget | |
| 23 * | |
| 24 * Author: Edward A. Falk | |
| 25 * falk@falconer.vip.best.com | |
| 26 * | |
| 27 * Date: July 9, 1997 | |
| 28 */ | |
| 29 | |
| 30 #ifndef _XawGaugeP_h | |
| 31 #define _XawGaugeP_h | |
| 32 | |
| 33 /*********************************************************************** | |
| 34 * | |
| 35 * Gauge Widget Private Data | |
| 36 * | |
| 37 * Gauge has little in common with the label widget, but can make use | |
| 38 * of some label resources, so is subclassed from label. | |
| 39 * | |
| 40 ***********************************************************************/ | |
| 41 | |
| 42 #include "xlwgauge.h" | |
| 442 | 43 #include ATHENA_LabelP_h_ |
| 424 | 44 |
| 45 /* New fields for the Gauge widget class record */ | |
| 46 | |
| 47 typedef struct {XtPointer extension;} GaugeClassPart; | |
| 48 | |
| 49 /* Full class record declaration */ | |
| 50 typedef struct _GaugeClassRec { | |
| 51 CoreClassPart core_class; | |
| 52 SimpleClassPart simple_class; | |
| 53 #ifdef _ThreeDP_h | |
| 54 ThreeDClassPart threeD_class; | |
| 55 #endif | |
| 56 LabelClassPart label_class; | |
| 57 GaugeClassPart gauge_class; | |
| 58 } GaugeClassRec; | |
| 59 | |
| 60 extern GaugeClassRec gaugeClassRec; | |
| 61 | |
| 62 /* New fields for the Gauge widget record */ | |
| 63 typedef struct { | |
| 64 /* resources */ | |
| 65 int value, v0,v1 ; | |
| 66 int ntics, nlabels ; | |
| 67 String *labels ; | |
| 68 XtOrientation orientation ; | |
| 69 Boolean autoScaleUp ; /* scales automatically */ | |
| 70 Boolean autoScaleDown ; /* scales automatically */ | |
| 71 int update ; /* update interval */ | |
| 72 XtCallbackList getValue ; /* proc to call to fetch a point */ | |
| 73 | |
| 74 /* private state */ | |
| 75 Dimension gmargin ; /* edges <-> gauge */ | |
| 76 Dimension tmargin ; /* top (left) edge <-> tic marks */ | |
| 77 Dimension lmargin ; /* tic marks <-> labels */ | |
| 78 Dimension margin0 ; /* left/bottom margin */ | |
| 79 Dimension margin1 ; /* right/top margin */ | |
| 80 XtIntervalId intervalId ; | |
| 81 Atom selected ; | |
| 82 String selstr ; /* selection string, if any */ | |
| 83 GC inverse_GC ; | |
| 84 } GaugePart; | |
| 85 | |
| 86 | |
| 87 /**************************************************************** | |
| 88 * | |
| 89 * Full instance record declaration | |
| 90 * | |
| 91 ****************************************************************/ | |
| 92 | |
| 93 typedef struct _GaugeRec { | |
| 94 CorePart core; | |
| 95 SimplePart simple; | |
| 96 #ifdef _ThreeDP_h | |
| 97 ThreeDPart threeD; | |
| 98 #endif | |
| 99 LabelPart label; | |
| 100 GaugePart gauge; | |
| 101 } GaugeRec; | |
| 102 | |
| 103 #endif /* _XawGaugeP_h */ |