Mercurial > hg > xemacs-beta
annotate lwlib/xlwgauge.c @ 4692:dc3c2f298857
Support last two arguments to #'make-coding-system being optional, again.
2009-09-20 Aidan Kehoe <kehoea@parhasard.net>
* mule/make-coding-system.el (make-coding-system):
Require a minimum of two, not four, arguments; thank you for the
problem report, Adam Sjoegren!
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Sun, 20 Sep 2009 17:19:54 +0100 |
| parents | 726060ee587c |
| children | 5460287a3327 |
| rev | line source |
|---|---|
| 442 | 1 /* Gauge Widget for XEmacs. |
| 424 | 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 /* Synched up with: Gauge.c 1.2 */ | |
| 22 | |
| 23 /* | |
| 24 * Gauge.c - Gauge widget | |
| 25 * | |
| 26 * Author: Edward A. Falk | |
| 27 * falk@falconer.vip.best.com | |
| 442 | 28 * |
| 424 | 29 * Date: July 9, 1997 |
| 30 * | |
| 31 * Note: for fun and demonstration purposes, I have added selection | |
| 32 * capabilities to this widget. If you select the widget, you create | |
| 33 * a primary selection containing the current value of the widget in | |
| 34 * both integer and string form. If you copy into the widget, the | |
| 35 * primary selection is converted to an integer value and the gauge is | |
| 36 * set to that value. | |
| 37 */ | |
| 38 | |
| 39 /* TODO: display time instead of value | |
| 40 */ | |
| 41 | |
| 42 #define DEF_LEN 50 /* default width (or height for vertical gauge) */ | |
| 43 #define MIN_LEN 10 /* minimum reasonable width (height) */ | |
| 44 #define TIC_LEN 6 /* length of tic marks */ | |
| 45 #define GA_WID 3 /* width of gauge */ | |
| 46 #define MS_PER_SEC 1000 | |
| 47 | |
| 48 #include <config.h> | |
| 49 #include <stdlib.h> | |
| 50 #include <stdio.h> | |
| 51 #include <ctype.h> | |
| 52 #include <X11/IntrinsicP.h> | |
| 53 #include <X11/Xatom.h> | |
| 54 #include <X11/StringDefs.h> | |
| 442 | 55 #include ATHENA_XawInit_h_ |
|
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56 #include "xt-wrappers.h" |
| 424 | 57 #include "xlwgaugeP.h" |
| 58 #include "../src/xmu.h" | |
| 59 #ifdef HAVE_XMU | |
| 60 #include <X11/Xmu/Atoms.h> | |
| 61 #include <X11/Xmu/Drawing.h> | |
| 62 #include <X11/Xmu/StdSel.h> | |
| 63 #endif | |
| 64 | |
| 65 | |
| 66 /**************************************************************** | |
| 67 * | |
| 68 * Gauge resources | |
| 69 * | |
| 70 ****************************************************************/ | |
| 71 | |
| 72 | |
| 73 static char defaultTranslations[] = | |
| 74 "<Btn1Up>: select()\n\ | |
| 75 <Key>F1: select(CLIPBOARD)\n\ | |
| 76 <Btn2Up>: paste()\n\ | |
| 77 <Key>F2: paste(CLIPBOARD)" ; | |
| 78 | |
| 79 | |
| 80 | |
|
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81 #define offset(field) XtOffsetOf(GaugeRec, gauge.field) |
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82 #define res(name,_class,intrepr,type,member,extrepr,value) \ |
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83 Xt_RESOURCE (name, _class, intrepr, type, offset(member), extrepr, value) |
| 424 | 84 static XtResource resources[] = { |
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85 res (XtNvalue, XtCValue, XtRInt, int, value, XtRImmediate, 0), |
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86 res (XtNminValue, XtCMinValue, XtRInt, int, v0, XtRImmediate, 0), |
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87 res (XtNmaxValue, XtCMaxValue, XtRInt, int, v1, XtRImmediate, 100), |
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88 res (XtNntics, XtCNTics, XtRInt, int, ntics, XtRImmediate, 0), |
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89 res (XtNnlabels, XtCNLabels, XtRInt, int, nlabels, XtRImmediate, 0), |
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90 res (XtNlabels, XtCLabels, XtRStringArray, String *, labels, |
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91 XtRStringArray, NULL), |
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92 res (XtNautoScaleUp, XtCAutoScaleUp, XtRBoolean, Boolean, autoScaleUp, |
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93 XtRImmediate, FALSE), |
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94 res (XtNautoScaleDown, XtCAutoScaleDown, XtRBoolean, Boolean, |
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95 autoScaleDown, XtRImmediate, FALSE), |
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96 res (XtNorientation, XtCOrientation, XtROrientation, XtOrientation, |
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97 orientation, XtRImmediate, XtorientHorizontal), |
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98 res (XtNupdate, XtCInterval, XtRInt, int, update, XtRImmediate, 0), |
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99 res (XtNgetValue, XtCCallback, XtRCallback, XtPointer, getValue, |
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100 XtRImmediate, NULL), |
| 424 | 101 }; |
| 102 #undef offset | |
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103 #undef res |
| 424 | 104 |
| 105 | |
| 106 /* member functions */ | |
| 107 | |
| 108 static void GaugeClassInit (void); | |
| 109 static void GaugeInit (Widget, Widget, ArgList, Cardinal *); | |
| 110 static void GaugeDestroy (Widget); | |
| 111 static void GaugeResize (Widget); | |
| 112 static void GaugeExpose (Widget, XEvent *, Region); | |
| 113 static Boolean GaugeSetValues (Widget, Widget, Widget, ArgList, Cardinal *); | |
| 114 static XtGeometryResult GaugeQueryGeometry (Widget, XtWidgetGeometry *, | |
| 115 XtWidgetGeometry *); | |
| 116 | |
| 117 /* action procs */ | |
| 118 | |
| 119 static void GaugeSelect (Widget, XEvent *, String *, Cardinal *); | |
| 120 static void GaugePaste (Widget, XEvent *, String *, Cardinal *); | |
| 121 | |
| 122 /* internal privates */ | |
| 123 | |
| 124 static void GaugeSize (GaugeWidget, Dimension *, Dimension *, Dimension); | |
| 125 static void MaxLabel (GaugeWidget, Dimension *, Dimension *, | |
| 126 Dimension *, Dimension *); | |
| 127 static void AutoScale (GaugeWidget); | |
| 128 static void EnableUpdate (GaugeWidget); | |
| 129 static void DisableUpdate (GaugeWidget); | |
| 130 | |
| 131 static void GaugeGetValue (XtPointer, XtIntervalId *); | |
| 3968 | 132 static void GaugeMercury (Display *, Window, GC, GaugeWidget, int, int); |
| 424 | 133 |
| 134 static Boolean GaugeConvert (Widget, Atom *, Atom *, Atom *, | |
| 458 | 135 XtPointer *, unsigned long *, int *); |
| 424 | 136 static void GaugeLoseSel (Widget, Atom *); |
| 137 static void GaugeDoneSel (Widget, Atom *, Atom *); | |
| 138 static void GaugeGetSelCB (Widget, XtPointer, Atom *, Atom *, | |
| 458 | 139 XtPointer, unsigned long *, int *); |
| 424 | 140 |
| 141 static GC Get_GC (GaugeWidget, Pixel); | |
| 142 | |
| 143 | |
| 144 static XtActionsRec actionsList[] = | |
| 145 { | |
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146 { (String) "select", GaugeSelect }, |
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parents:
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diff
changeset
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147 { (String) "paste", GaugePaste }, |
| 424 | 148 } ; |
| 149 | |
| 150 | |
| 151 | |
| 152 /**************************************************************** | |
| 153 * | |
| 154 * Full class record constant | |
| 155 * | |
| 156 ****************************************************************/ | |
| 157 | |
| 158 GaugeClassRec gaugeClassRec = { | |
| 159 { | |
| 442 | 160 /* core_class fields */ |
| 424 | 161 /* superclass */ (WidgetClass) &labelClassRec, |
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726060ee587c
First draft of g++ 4.3 warning removal patch. Builds. *Needs ChangeLogs.*
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4522
diff
changeset
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162 /* class_name */ (String) "Gauge", |
| 424 | 163 /* widget_size */ sizeof(GaugeRec), |
| 164 /* class_initialize */ GaugeClassInit, | |
| 165 /* class_part_initialize */ NULL, | |
| 166 /* class_inited */ FALSE, | |
| 167 /* initialize */ GaugeInit, | |
| 168 /* initialize_hook */ NULL, | |
| 169 /* realize */ XtInheritRealize, /* TODO? */ | |
| 170 /* actions */ actionsList, | |
| 171 /* num_actions */ XtNumber(actionsList), | |
| 172 /* resources */ resources, | |
| 173 /* num_resources */ XtNumber(resources), | |
| 174 /* xrm_class */ NULLQUARK, | |
| 175 /* compress_motion */ TRUE, | |
| 176 /* compress_exposure */ TRUE, | |
| 177 /* compress_enterleave */ TRUE, | |
| 178 /* visible_interest */ FALSE, | |
| 179 /* destroy */ GaugeDestroy, | |
| 180 /* resize */ GaugeResize, | |
| 181 /* expose */ GaugeExpose, | |
| 182 /* set_values */ GaugeSetValues, | |
| 183 /* set_values_hook */ NULL, | |
| 184 /* set_values_almost */ XtInheritSetValuesAlmost, | |
| 185 /* get_values_hook */ NULL, | |
| 186 /* accept_focus */ NULL, | |
| 187 /* version */ XtVersion, | |
| 188 /* callback_private */ NULL, | |
| 189 /* tm_table */ defaultTranslations, | |
| 190 /* query_geometry */ GaugeQueryGeometry, | |
| 191 /* display_accelerator */ XtInheritDisplayAccelerator, | |
| 192 /* extension */ NULL | |
| 193 }, | |
| 194 /* Simple class fields initialization */ | |
| 195 { | |
| 196 /* change_sensitive */ XtInheritChangeSensitive | |
| 197 }, | |
| 198 #ifdef _ThreeDP_h | |
| 199 /* ThreeD class fields initialization */ | |
| 200 { | |
| 201 XtInheritXaw3dShadowDraw /* shadowdraw */ | |
| 202 }, | |
| 203 #endif | |
| 204 /* Label class fields initialization */ | |
| 205 { | |
| 206 /* ignore */ 0 | |
| 207 }, | |
| 208 /* Gauge class fields initialization */ | |
| 209 { | |
| 210 /* extension */ NULL | |
| 211 }, | |
| 212 }; | |
| 213 | |
| 214 WidgetClass gaugeWidgetClass = (WidgetClass)&gaugeClassRec; | |
| 215 | |
| 216 | |
| 217 | |
| 218 | |
| 219 /**************************************************************** | |
| 220 * | |
| 221 * Member Procedures | |
| 222 * | |
| 223 ****************************************************************/ | |
| 224 | |
| 225 static void | |
| 226 GaugeClassInit (void) | |
| 227 { | |
| 228 XawInitializeWidgetSet(); | |
| 229 #ifdef HAVE_XMU | |
| 230 XtAddConverter(XtRString, XtROrientation, XmuCvtStringToOrientation, | |
| 231 NULL, 0) ; | |
| 232 #endif | |
| 233 } | |
| 234 | |
| 235 | |
| 236 | |
| 237 /* ARGSUSED */ | |
| 238 static void | |
| 239 GaugeInit (Widget request, | |
| 3055 | 240 Widget new_, |
| 2286 | 241 ArgList UNUSED (args), |
| 242 Cardinal *UNUSED (num_args)) | |
| 424 | 243 { |
| 3055 | 244 GaugeWidget gw = (GaugeWidget) new_; |
| 424 | 245 |
| 246 if( gw->gauge.v0 == 0 && gw->gauge.v1 == 0 ) { | |
| 247 gw->gauge.autoScaleUp = gw->gauge.autoScaleDown = TRUE ; | |
| 248 AutoScale(gw) ; | |
| 249 } | |
| 250 | |
| 251 /* If size not explicitly set, set it to our preferred size now. */ | |
| 252 | |
| 253 if( request->core.width == 0 || request->core.height == 0 ) | |
| 254 { | |
| 255 Dimension w,h ; | |
| 256 GaugeSize(gw, &w,&h, DEF_LEN) ; | |
| 257 if( request->core.width == 0 ) | |
| 3055 | 258 new_->core.width = w ; |
| 424 | 259 if( request->core.height == 0 ) |
| 3055 | 260 new_->core.height = h ; |
| 261 gw->core.widget_class->core_class.resize(new_) ; | |
| 424 | 262 } |
| 263 | |
| 264 gw->gauge.selected = None ; | |
| 265 gw->gauge.selstr = NULL ; | |
| 266 | |
| 267 if( gw->gauge.update > 0 ) | |
| 268 EnableUpdate(gw) ; | |
| 269 | |
| 270 gw->gauge.inverse_GC = Get_GC(gw, gw->core.background_pixel) ; | |
| 271 } | |
| 272 | |
| 273 static void | |
| 274 GaugeDestroy (Widget w) | |
| 275 { | |
| 276 GaugeWidget gw = (GaugeWidget)w; | |
| 277 | |
| 278 if( gw->gauge.selstr != NULL ) | |
| 279 XtFree(gw->gauge.selstr) ; | |
| 280 | |
| 281 if( gw->gauge.selected != None ) | |
| 282 XtDisownSelection(w, gw->gauge.selected, CurrentTime) ; | |
| 283 | |
| 284 XtReleaseGC(w, gw->gauge.inverse_GC) ; | |
| 285 | |
| 286 if( gw->gauge.update > 0 ) | |
| 287 DisableUpdate(gw) ; | |
| 288 } | |
| 289 | |
| 290 | |
| 291 /* React to size change from manager. Label widget will compute some | |
| 292 * internal stuff, but we need to override. | |
| 293 */ | |
| 294 | |
| 295 static void | |
| 296 GaugeResize (Widget w) | |
| 297 { | |
| 298 GaugeWidget gw = (GaugeWidget)w; | |
| 299 int size ; /* height (width) of gauge */ | |
| 300 int vmargin ; /* vertical (horizontal) margin */ | |
| 301 int hmargin ; /* horizontal (vertical) margin */ | |
| 302 | |
| 303 vmargin = gw->gauge.orientation == XtorientHorizontal ? | |
| 304 gw->label.internal_height : gw->label.internal_width ; | |
| 305 hmargin = gw->gauge.orientation == XtorientHorizontal ? | |
| 306 gw->label.internal_width : gw->label.internal_height ; | |
| 307 | |
| 308 /* TODO: need to call parent resize proc? I don't think so since | |
| 309 * we're recomputing everything from scratch anyway. | |
| 310 */ | |
| 311 | |
| 312 /* find total height (width) of contents */ | |
| 313 | |
| 314 size = GA_WID+2 ; /* gauge itself + edges */ | |
| 315 | |
| 316 if( gw->gauge.ntics > 1 ) /* tic marks */ | |
| 317 size += vmargin + TIC_LEN ; | |
| 318 | |
| 319 if( gw->gauge.nlabels > 1 ) | |
| 320 { | |
| 321 Dimension lwm, lw0, lw1 ; /* width of max, left, right labels */ | |
| 322 Dimension lh ; | |
| 323 | |
| 324 MaxLabel(gw,&lwm,&lh, &lw0,&lw1) ; | |
| 325 | |
| 326 if( gw->gauge.orientation == XtorientHorizontal ) | |
| 327 { | |
| 328 gw->gauge.margin0 = lw0 / 2 ; | |
| 329 gw->gauge.margin1 = lw1 / 2 ; | |
| 330 size += lh + vmargin ; | |
| 331 } | |
| 332 else | |
| 333 { | |
| 442 | 334 gw->gauge.margin0 = |
| 424 | 335 gw->gauge.margin1 = lh / 2 ; |
| 336 size += lwm + vmargin ; | |
| 337 } | |
| 338 } | |
| 339 else | |
| 340 gw->gauge.margin0 = gw->gauge.margin1 = 0 ; | |
| 341 | |
| 342 gw->gauge.margin0 += hmargin ; | |
| 343 gw->gauge.margin1 += hmargin ; | |
| 344 | |
| 345 /* Now distribute height (width) over components */ | |
| 346 | |
| 347 if( gw->gauge.orientation == XtorientHorizontal ) | |
| 348 gw->gauge.gmargin = (gw->core.height-size)/2 ; | |
| 349 else | |
| 350 gw->gauge.gmargin = (gw->core.width-size)/2 ; | |
| 351 | |
| 352 gw->gauge.tmargin = gw->gauge.gmargin + GA_WID+2 + vmargin ; | |
| 353 if( gw->gauge.ntics > 1 ) | |
| 354 gw->gauge.lmargin = gw->gauge.tmargin + TIC_LEN + vmargin ; | |
| 355 else | |
| 356 gw->gauge.lmargin = gw->gauge.tmargin ; | |
| 357 } | |
| 358 | |
| 359 /* | |
| 360 * Repaint the widget window | |
| 361 */ | |
| 362 | |
| 363 /* ARGSUSED */ | |
| 364 static void | |
| 365 GaugeExpose (Widget w, | |
| 2286 | 366 XEvent *UNUSED (event), |
| 367 Region UNUSED (region)) | |
| 424 | 368 { |
| 369 GaugeWidget gw = (GaugeWidget) w; | |
| 370 register Display *dpy = XtDisplay(w) ; | |
| 371 register Window win = XtWindow(w) ; | |
| 372 GC gc; /* foreground, background */ | |
| 373 GC gctop, gcbot ; /* dark, light shadows */ | |
| 374 | |
| 375 int len ; /* length (width or height) of widget */ | |
| 376 int e0,e1 ; /* ends of the gauge */ | |
| 377 int x ; | |
| 378 int y ; /* vertical (horizontal) position */ | |
| 379 int i ; | |
| 380 int v0 = gw->gauge.v0 ; | |
| 381 int v1 = gw->gauge.v1 ; | |
| 382 int value = gw->gauge.value ; | |
| 383 | |
| 384 gc = XtIsSensitive(w) ? gw->label.normal_GC : gw->label.gray_GC ; | |
| 385 | |
| 386 | |
| 387 #ifdef _ThreeDP_h | |
| 388 gctop = gw->threeD.bot_shadow_GC ; | |
| 389 gcbot = gw->threeD.top_shadow_GC ; | |
| 390 #else | |
| 391 gctop = gcbot = gc ; | |
| 392 #endif | |
| 393 | |
| 394 if( gw->gauge.orientation == XtorientHorizontal ) { | |
| 395 len = gw->core.width ; | |
| 396 } else { | |
| 397 len = gw->core.height ; | |
| 398 } | |
| 399 | |
| 400 /* if the gauge is selected, signify by drawing the background | |
| 442 | 401 * in a contrasting color. |
| 424 | 402 */ |
| 403 | |
| 404 if( gw->gauge.selected ) | |
| 405 { | |
| 406 XFillRectangle(dpy,win, gc, 0,0, w->core.width,w->core.height) ; | |
| 407 gc = gw->gauge.inverse_GC ; | |
| 408 } | |
| 409 | |
| 410 e0 = gw->gauge.margin0 ; /* left (top) end */ | |
| 411 e1 = len - gw->gauge.margin1 -1 ; /* right (bottom) end */ | |
| 412 | |
| 413 /* Draw the Gauge itself */ | |
| 414 | |
| 415 y = gw->gauge.gmargin ; | |
| 416 | |
| 417 if( gw->gauge.orientation == XtorientHorizontal ) /* horizontal */ | |
| 418 { | |
| 419 XDrawLine(dpy,win,gctop, e0+1,y, e1-1,y) ; | |
| 420 XDrawLine(dpy,win,gctop, e0,y+1, e0,y+GA_WID) ; | |
| 421 XDrawLine(dpy,win,gcbot, e0+1, y+GA_WID+1, e1-1, y+GA_WID+1) ; | |
| 422 XDrawLine(dpy,win,gcbot, e1,y+1, e1,y+GA_WID) ; | |
| 423 } | |
| 424 else /* vertical */ | |
| 425 { | |
| 426 XDrawLine(dpy,win,gctop, y,e0+1, y,e1-1) ; | |
| 427 XDrawLine(dpy,win,gctop, y+1,e0, y+GA_WID,e0) ; | |
| 428 XDrawLine(dpy,win,gcbot, y+GA_WID+1,e0+1, y+GA_WID+1, e1-1) ; | |
| 429 XDrawLine(dpy,win,gcbot, y+1,e1, y+GA_WID,e1) ; | |
| 430 } | |
| 431 | |
| 432 | |
| 433 /* draw the mercury */ | |
| 434 | |
| 435 GaugeMercury(dpy, win, gc, gw, 0,value) ; | |
| 436 | |
| 437 | |
| 438 if( gw->gauge.ntics > 1 ) | |
| 439 { | |
| 440 y = gw->gauge.tmargin ; | |
| 441 for(i=0; i<gw->gauge.ntics; ++i) | |
| 442 { | |
| 443 x = e0 + i*(e1-e0-1)/(gw->gauge.ntics-1) ; | |
| 444 if( gw->gauge.orientation == XtorientHorizontal ) { | |
| 445 XDrawLine(dpy,win,gcbot, x,y+1, x,y+TIC_LEN-2) ; | |
| 446 XDrawLine(dpy,win,gcbot, x,y, x+1,y) ; | |
| 447 XDrawLine(dpy,win,gctop, x+1,y+1, x+1,y+TIC_LEN-2) ; | |
| 448 XDrawLine(dpy,win,gctop, x,y+TIC_LEN-1, x+1,y+TIC_LEN-1) ; | |
| 449 } | |
| 450 else { | |
| 451 XDrawLine(dpy,win,gcbot, y+1,x, y+TIC_LEN-2,x) ; | |
| 452 XDrawLine(dpy,win,gcbot, y,x, y,x+1) ; | |
| 453 XDrawLine(dpy,win,gctop, y+1,x+1, y+TIC_LEN-2,x+1) ; | |
| 454 XDrawLine(dpy,win,gctop, y+TIC_LEN-1,x, y+TIC_LEN-1,x+1) ; | |
| 455 } | |
| 456 } | |
| 457 } | |
| 458 | |
| 459 /* draw labels */ | |
| 460 if( gw->gauge.nlabels > 1 ) | |
| 461 { | |
| 462 char label[20], *s = label ; | |
| 442 | 463 int xlen, wd,h =0 ; |
| 424 | 464 |
| 465 if( gw->gauge.orientation == XtorientHorizontal ) | |
| 466 y = gw->gauge.lmargin + gw->label.font->max_bounds.ascent - 1 ; | |
| 467 else { | |
| 468 y = gw->gauge.lmargin ; | |
| 469 h = gw->label.font->max_bounds.ascent / 2 ; | |
| 470 } | |
| 471 | |
| 472 for(i=0; i<gw->gauge.nlabels; ++i) | |
| 473 { | |
| 474 if( gw->gauge.labels == NULL ) | |
| 475 sprintf(label, "%d", v0+i*(v1 - v0)/(gw->gauge.nlabels - 1)) ; | |
| 476 else | |
| 477 s = gw->gauge.labels[i] ; | |
| 478 if( s != NULL ) { | |
| 479 x = e0 + i*(e1-e0-1)/(gw->gauge.nlabels-1) ; | |
| 442 | 480 xlen = strlen(s) ; |
| 424 | 481 if( gw->gauge.orientation == XtorientHorizontal ) { |
| 442 | 482 wd = XTextWidth(gw->label.font, s, xlen) ; |
| 483 XDrawString(dpy,win,gc, x-wd/2,y, s,xlen) ; | |
| 424 | 484 } |
| 485 else { | |
| 442 | 486 XDrawString(dpy,win,gc, y,x+h, s,xlen) ; |
| 424 | 487 } |
| 488 } | |
| 489 } | |
| 490 } | |
| 491 } | |
| 492 | |
| 493 | |
| 494 /* | |
| 495 * Set specified arguments into widget | |
| 496 */ | |
| 497 | |
| 498 static Boolean | |
| 499 GaugeSetValues (Widget old, | |
| 2286 | 500 Widget UNUSED (request), |
| 3055 | 501 Widget new_, |
| 2286 | 502 ArgList UNUSED (args), |
| 503 Cardinal *UNUSED (num_args)) | |
| 424 | 504 { |
| 505 GaugeWidget oldgw = (GaugeWidget) old; | |
| 3055 | 506 GaugeWidget gw = (GaugeWidget) new_; |
| 424 | 507 Boolean was_resized = False; |
| 508 | |
| 509 if( gw->gauge.selected != None ) { | |
| 3055 | 510 XtDisownSelection(new_, gw->gauge.selected, CurrentTime) ; |
| 424 | 511 gw->gauge.selected = None ; |
| 512 } | |
| 513 | |
| 514 /* Changes to v0,v1,labels, ntics, nlabels require resize & redraw. */ | |
| 515 /* Change to value requires redraw and possible resize if autoscale */ | |
| 516 | |
| 517 was_resized = | |
| 518 gw->gauge.v0 != oldgw->gauge.v0 || | |
| 519 gw->gauge.v1 != oldgw->gauge.v1 || | |
| 520 gw->gauge.ntics != oldgw->gauge.ntics || | |
| 521 gw->gauge.nlabels != oldgw->gauge.nlabels || | |
| 522 gw->gauge.labels != oldgw->gauge.labels ; | |
| 523 | |
| 524 if( (gw->gauge.autoScaleUp && gw->gauge.value > gw->gauge.v1) || | |
| 525 (gw->gauge.autoScaleDown && gw->gauge.value < gw->gauge.v1/3 )) | |
| 526 { | |
| 527 AutoScale(gw) ; | |
| 528 was_resized = TRUE ; | |
| 529 } | |
| 530 | |
| 531 if( was_resized ) { | |
| 532 if( gw->label.resize ) | |
| 533 GaugeSize(gw, &gw->core.width, &gw->core.height, DEF_LEN) ; | |
| 534 else | |
| 3055 | 535 GaugeResize(new_) ; |
| 424 | 536 } |
| 442 | 537 |
| 424 | 538 if( gw->gauge.update != oldgw->gauge.update ) |
| 539 { | |
| 540 if( gw->gauge.update > 0 ) | |
| 541 EnableUpdate(gw) ; | |
| 542 else | |
| 543 DisableUpdate(gw) ; | |
| 544 } | |
| 545 | |
| 546 if( gw->core.background_pixel != oldgw->core.background_pixel ) | |
| 547 { | |
| 3055 | 548 XtReleaseGC(new_, gw->gauge.inverse_GC) ; |
| 424 | 549 gw->gauge.inverse_GC = Get_GC(gw, gw->core.background_pixel) ; |
| 550 } | |
| 551 | |
| 552 return was_resized || gw->gauge.value != oldgw->gauge.value || | |
| 3055 | 553 XtIsSensitive(old) != XtIsSensitive(new_); |
| 424 | 554 } |
| 555 | |
| 556 | |
| 557 static XtGeometryResult | |
| 558 GaugeQueryGeometry (Widget w, | |
| 559 XtWidgetGeometry *intended, | |
| 560 XtWidgetGeometry *preferred) | |
| 561 { | |
| 562 register GaugeWidget gw = (GaugeWidget)w; | |
| 563 | |
| 564 if( intended->width == w->core.width && | |
| 565 intended->height == w->core.height ) | |
| 566 return XtGeometryNo ; | |
| 567 | |
| 568 preferred->request_mode = CWWidth | CWHeight; | |
| 569 GaugeSize(gw, &preferred->width, &preferred->height, DEF_LEN) ; | |
| 570 | |
| 571 if( (!(intended->request_mode & CWWidth) || | |
| 572 intended->width >= preferred->width) && | |
| 573 (!(intended->request_mode & CWHeight) || | |
| 574 intended->height >= preferred->height) ) | |
| 575 return XtGeometryYes; | |
| 576 else | |
| 577 return XtGeometryAlmost; | |
| 578 } | |
| 579 | |
| 580 | |
| 581 | |
| 582 | |
| 583 /**************************************************************** | |
| 584 * | |
| 585 * Action Procedures | |
| 586 * | |
| 587 ****************************************************************/ | |
| 588 | |
| 589 static void | |
| 590 GaugeSelect (Widget w, | |
| 591 XEvent *event, | |
| 592 String *params, | |
| 593 Cardinal *num_params) | |
| 594 { | |
| 595 GaugeWidget gw = (GaugeWidget)w ; | |
| 596 Atom seln = XA_PRIMARY ; | |
| 597 | |
| 598 if( gw->gauge.selected != None ) { | |
| 599 XtDisownSelection(w, gw->gauge.selected, CurrentTime) ; | |
| 600 gw->gauge.selected = None ; | |
| 601 } | |
| 602 | |
| 603 if( *num_params > 0 ) { | |
| 604 seln = XInternAtom(XtDisplay(w), params[0], False) ; | |
| 605 printf("atom %s is %ld\n", params[0], seln) ; | |
| 606 } | |
| 607 | |
| 608 if( ! XtOwnSelection(w, seln, event->xbutton.time, GaugeConvert, | |
| 609 GaugeLoseSel, GaugeDoneSel) ) | |
| 610 { | |
| 611 /* in real code, this error message would be replaced by | |
| 612 * something more elegant, or at least deleted | |
| 613 */ | |
| 614 | |
| 615 fprintf(stderr, "Gauge failed to get selection, try again\n") ; | |
| 616 } | |
| 617 else | |
| 618 { | |
| 619 gw->gauge.selected = TRUE ; | |
| 620 gw->gauge.selstr = (String)XtMalloc(4*sizeof(int)) ; | |
| 621 sprintf(gw->gauge.selstr, "%d", gw->gauge.value) ; | |
| 622 GaugeExpose(w,0,0) ; | |
| 623 } | |
| 624 } | |
| 625 | |
| 626 | |
| 627 static Boolean | |
| 628 GaugeConvert (Widget w, | |
| 629 Atom *selection, /* usually XA_PRIMARY */ | |
| 630 Atom *target, /* requested target */ | |
| 631 Atom *type, /* returned type */ | |
| 632 XtPointer *value, /* returned value */ | |
| 458 | 633 unsigned long *length, /* returned length */ |
| 424 | 634 int *format) /* returned format */ |
| 635 { | |
| 636 GaugeWidget gw = (GaugeWidget)w ; | |
| 637 XSelectionRequestEvent *req ; | |
| 638 | |
| 639 printf( "requesting selection %s:%s\n", | |
| 640 XGetAtomName(XtDisplay(w),*selection), | |
| 641 XGetAtomName(XtDisplay(w),*target)); | |
| 642 | |
| 643 #ifdef HAVE_XMU | |
| 644 if( *target == XA_TARGETS(XtDisplay(w)) ) | |
| 645 { | |
| 2271 | 646 XPointer stdTargets; |
| 647 Atom *rval ; | |
| 458 | 648 unsigned long stdLength ; |
| 424 | 649 |
| 650 /* XmuConvertStandardSelection can handle this. This function | |
| 651 * will return a list of standard targets. We prepend TEXT, | |
| 652 * STRING and INTEGER to the list and return it. | |
| 653 */ | |
| 654 | |
| 655 req = XtGetSelectionRequest(w, *selection, NULL) ; | |
| 656 XmuConvertStandardSelection(w, req->time, selection, target, | |
| 2271 | 657 type, &stdTargets, &stdLength, format) ; |
| 424 | 658 |
| 659 *type = XA_ATOM ; /* TODO: needed? */ | |
| 660 *length = stdLength + 3 ; | |
| 661 rval = (Atom *) XtMalloc(sizeof(Atom)*(stdLength+3)) ; | |
| 662 *value = (XtPointer) rval ; | |
| 663 *rval++ = XA_INTEGER ; | |
| 664 *rval++ = XA_STRING ; | |
| 665 *rval++ = XA_TEXT(XtDisplay(w)) ; | |
| 2271 | 666 memcpy(rval, stdTargets, stdLength*sizeof(Atom)) ; |
| 424 | 667 XtFree((char*) stdTargets) ; |
| 668 *format = 8*sizeof(Atom) ; /* TODO: needed? */ | |
| 669 return True ; | |
| 670 } | |
| 671 | |
| 442 | 672 else |
| 424 | 673 #endif |
| 674 if( *target == XA_INTEGER ) | |
| 675 { | |
| 676 *type = XA_INTEGER ; | |
| 677 *length = 1 ; | |
| 678 *value = (XtPointer) &gw->gauge.value ; | |
| 679 *format = 8*sizeof(int) ; | |
| 680 return True ; | |
| 681 } | |
| 682 | |
| 442 | 683 else if( *target == XA_STRING |
| 424 | 684 #ifdef HAVE_XMU |
| 442 | 685 || |
| 686 *target == XA_TEXT(XtDisplay(w)) | |
| 424 | 687 #endif |
| 688 ) | |
| 689 { | |
| 690 *type = *target ; | |
| 691 *length = strlen(gw->gauge.selstr)*sizeof(char) ; | |
| 692 *value = (XtPointer) gw->gauge.selstr ; | |
| 693 *format = 8 ; | |
| 694 return True ; | |
| 695 } | |
| 696 | |
| 697 else | |
| 698 { | |
| 699 /* anything else, we just give it to XmuConvertStandardSelection() */ | |
| 700 #ifdef HAVE_XMU | |
| 701 req = XtGetSelectionRequest(w, *selection, NULL) ; | |
| 702 if( XmuConvertStandardSelection(w, req->time, selection, target, | |
| 703 type, (XPointer *) value, length, format) ) | |
| 704 return True ; | |
| 442 | 705 else |
| 424 | 706 #endif |
| 707 { | |
| 708 printf( | |
| 709 "Gauge: requestor is requesting unsupported selection %s:%s\n", | |
| 710 XGetAtomName(XtDisplay(w),*selection), | |
| 711 XGetAtomName(XtDisplay(w),*target)); | |
| 712 return False ; | |
| 713 } | |
| 714 } | |
| 715 } | |
| 716 | |
| 717 | |
| 718 | |
| 719 static void | |
| 720 GaugeLoseSel (Widget w, | |
| 2286 | 721 Atom *UNUSED (selection)) /* usually XA_PRIMARY */ |
| 424 | 722 { |
| 723 GaugeWidget gw = (GaugeWidget)w ; | |
| 724 Display *dpy = XtDisplay(w) ; | |
| 725 Window win = XtWindow(w) ; | |
| 726 | |
| 727 if( gw->gauge.selstr != NULL ) { | |
| 728 XtFree(gw->gauge.selstr) ; | |
| 729 gw->gauge.selstr = NULL ; | |
| 730 } | |
| 731 | |
| 732 gw->gauge.selected = False ; | |
| 733 XClearWindow(dpy,win) ; | |
| 734 GaugeExpose(w,0,0) ; | |
| 735 } | |
| 736 | |
| 737 | |
| 738 static void | |
| 2286 | 739 GaugeDoneSel (Widget UNUSED (w), |
| 740 Atom *UNUSED (selection), /* usually XA_PRIMARY */ | |
| 741 Atom *UNUSED (target)) /* requested target */ | |
| 424 | 742 { |
| 743 /* selection done, anything to do? */ | |
| 744 } | |
| 745 | |
| 746 | |
| 747 static void | |
| 748 GaugePaste (Widget w, | |
| 749 XEvent *event, | |
| 750 String *params, | |
| 751 Cardinal *num_params) | |
| 752 { | |
| 753 Atom seln = XA_PRIMARY ; | |
| 754 | |
| 755 if( *num_params > 0 ) { | |
| 756 seln = XInternAtom(XtDisplay(w), params[0], False) ; | |
| 757 printf("atom %s is %ld\n", params[0], seln) ; | |
| 758 } | |
| 759 | |
| 760 /* try for integer value first */ | |
| 761 XtGetSelectionValue(w, seln, XA_INTEGER, | |
| 762 GaugeGetSelCB, (XtPointer)XA_INTEGER, | |
| 763 event->xbutton.time) ; | |
| 764 } | |
| 765 | |
| 766 static void | |
| 767 GaugeGetSelCB (Widget w, | |
| 768 XtPointer client, | |
| 769 Atom *selection, | |
| 770 Atom *type, | |
| 771 XtPointer value, | |
| 2286 | 772 unsigned long *UNUSED (length), |
| 773 int *UNUSED (format)) | |
| 424 | 774 { |
| 775 Display *dpy = XtDisplay(w) ; | |
| 776 Atom target = (Atom)client ; | |
| 777 int *iptr ; | |
| 778 char *cptr ; | |
| 779 | |
| 780 if( *type == XA_INTEGER ) { | |
| 781 iptr = (int *)value ; | |
| 782 XawGaugeSetValue(w, *iptr) ; | |
| 783 } | |
| 784 | |
| 442 | 785 else if( *type == XA_STRING |
| 424 | 786 #ifdef HAVE_XMU |
| 787 || | |
| 442 | 788 *type == XA_TEXT(dpy) |
| 424 | 789 #endif |
| 442 | 790 ) |
| 424 | 791 { |
| 792 cptr = (char *)value ; | |
| 793 XawGaugeSetValue(w, atoi(cptr)) ; | |
| 794 } | |
| 795 | |
| 796 /* failed, try string */ | |
| 797 else if( *type == None && target == XA_INTEGER ) | |
| 798 XtGetSelectionValue(w, *selection, XA_STRING, | |
| 799 GaugeGetSelCB, (XtPointer)XA_STRING, | |
| 800 CurrentTime) ; | |
| 801 } | |
| 802 | |
| 803 | |
| 804 | |
| 805 /**************************************************************** | |
| 806 * | |
| 807 * Public Procedures | |
| 808 * | |
| 809 ****************************************************************/ | |
| 810 | |
| 811 | |
| 812 /* Change gauge value. Only undraw or draw what needs to be | |
| 813 * changed. | |
| 814 */ | |
| 815 | |
| 816 void | |
| 3968 | 817 XawGaugeSetValue (Widget w, int value) |
| 424 | 818 { |
| 819 GaugeWidget gw = (GaugeWidget)w ; | |
| 820 int oldvalue ; | |
| 821 GC gc ; | |
| 822 | |
| 823 if( gw->gauge.selected != None ) { | |
| 824 XtDisownSelection(w, gw->gauge.selected, CurrentTime) ; | |
| 825 gw->gauge.selected = None ; | |
| 826 } | |
| 827 | |
| 828 if( !XtIsRealized(w) ) { | |
| 829 gw->gauge.value = value ; | |
| 830 return ; | |
| 831 } | |
| 832 | |
| 833 /* need to rescale? */ | |
| 647 | 834 if(( gw->gauge.autoScaleUp && (int) value > gw->gauge.v1) || |
| 835 (gw->gauge.autoScaleDown && (int) value < gw->gauge.v1/3 )) | |
| 424 | 836 { |
| 3374 | 837 XtVaSetValues(w, XtNvalue, value, NULL) ; |
| 424 | 838 return ; |
| 839 } | |
| 840 | |
| 841 oldvalue = gw->gauge.value ; | |
| 842 gw->gauge.value = value ; | |
| 843 | |
| 844 gc = XtIsSensitive(w) ? gw->label.normal_GC : gw->label.gray_GC ; | |
| 845 GaugeMercury(XtDisplay(w), XtWindow(w), gc, gw, oldvalue,value) ; | |
| 846 } | |
| 847 | |
| 848 | |
| 3968 | 849 int |
| 424 | 850 XawGaugeGetValue (Widget w) |
| 851 { | |
| 852 GaugeWidget gw = (GaugeWidget)w ; | |
| 853 return gw->gauge.value ; | |
| 854 } | |
| 855 | |
| 856 | |
| 857 | |
| 858 | |
| 859 /**************************************************************** | |
| 860 * | |
| 861 * Private Procedures | |
| 862 * | |
| 863 ****************************************************************/ | |
| 864 | |
| 865 /* draw the mercury over a specific region */ | |
| 866 | |
| 867 static void | |
| 868 GaugeMercury (Display *dpy, | |
| 869 Window win, | |
| 870 GC gc, | |
| 871 GaugeWidget gw, | |
| 3968 | 872 int val0, |
| 873 int val1) | |
| 424 | 874 { |
| 875 int v0 = gw->gauge.v0 ; | |
| 876 int v1 = gw->gauge.v1 ; | |
| 877 int vd = v1 - v0 ; | |
| 878 Dimension len ; /* length (width or height) of gauge */ | |
| 879 Position e0, e1 ; /* gauge ends */ | |
| 880 Position p0, p1 ; /* mercury ends */ | |
| 881 int y ; /* vertical (horizontal) position */ | |
| 882 Boolean undraw = FALSE ; | |
| 883 | |
| 884 len = gw->gauge.orientation == XtorientHorizontal ? | |
| 885 gw->core.width : gw->core.height ; | |
| 886 | |
| 887 e0 = gw->gauge.margin0 ; /* left (top) end */ | |
| 888 e1 = len - gw->gauge.margin1 -1 ; /* right (bottom) end */ | |
| 889 | |
| 890 if( vd <= 0 ) vd = 1 ; | |
| 891 | |
| 3968 | 892 if( val0 < v0 ) val0 = v0 ; |
| 893 else if( val0 > v1 ) val0 = v1 ; | |
| 894 if( val1 < v0 ) val1 = v0 ; | |
| 895 else if( val1 > v1 ) val1 = v1 ; | |
| 424 | 896 |
| 897 p0 = (val0-v0)*(e1-e0-1)/vd ; | |
| 898 p1 = (val1-v0)*(e1-e0-1)/vd ; | |
| 899 | |
| 900 if( p1 == p0 ) | |
| 901 return ; | |
| 902 | |
| 903 y = gw->gauge.gmargin ; | |
| 904 | |
| 905 if( p1 < p0 ) | |
| 906 { | |
| 907 Position tmp = p0 ; | |
| 908 p0 = p1 ; | |
| 909 p1 = tmp ; | |
| 910 gc = gw->label.normal_GC ; | |
| 911 XSetForeground(dpy,gc, gw->core.background_pixel) ; | |
| 912 undraw = TRUE ; | |
| 913 } | |
| 914 | |
| 915 if( gw->gauge.orientation == XtorientHorizontal ) | |
| 916 XFillRectangle(dpy,win,gc, e0+p0+1,y+1, p1-p0,GA_WID) ; | |
| 917 else | |
| 918 XFillRectangle(dpy,win,gc, y+1,e1-p1, GA_WID,p1-p0) ; | |
| 919 | |
| 920 if( undraw ) | |
| 921 XSetForeground(dpy,gc, gw->label.foreground) ; | |
| 922 } | |
| 923 | |
| 924 | |
| 925 | |
| 926 /* Search the labels, find the largest one. */ | |
| 927 /* TODO: handle vertical fonts? */ | |
| 928 | |
| 929 static void | |
| 930 MaxLabel (GaugeWidget gw, | |
| 931 Dimension *wid, /* max label width */ | |
| 932 Dimension *hgt, /* max label height */ | |
| 933 Dimension *w0, /* width of first label */ | |
| 934 Dimension *w1) /* width of last label */ | |
| 935 { | |
| 936 char lstr[80], *lbl ; | |
| 937 int w ; | |
| 938 XFontStruct *font = gw->label.font ; | |
| 939 int i ; | |
| 940 int lw = 0; | |
| 941 int v0 = gw->gauge.v0 ; | |
| 942 int dv = gw->gauge.v1 - v0 ; | |
| 943 int n = gw->gauge.nlabels ; | |
| 944 | |
| 945 if( n > 0 ) | |
| 946 { | |
| 947 if( --n <= 0 ) {n = 1 ; v0 += dv/2 ;} | |
| 948 | |
| 949 /* loop through all labels, figure out how much room they | |
| 950 * need. | |
| 951 */ | |
| 952 w = 0 ; | |
| 953 for(i=0; i<gw->gauge.nlabels; ++i) | |
| 954 { | |
| 955 if( gw->gauge.labels == NULL ) /* numeric labels */ | |
| 956 sprintf(lbl = lstr,"%d", v0 + i*dv/n) ; | |
| 957 else | |
| 958 lbl = gw->gauge.labels[i] ; | |
| 959 | |
| 960 if( lbl != NULL ) { | |
| 961 lw = XTextWidth(font, lbl, strlen(lbl)) ; | |
| 962 w = Max( w, lw ) ; | |
| 963 } | |
| 964 else | |
| 965 lw = 0 ; | |
| 966 | |
| 967 if( i == 0 && w0 != NULL ) *w0 = lw ; | |
| 968 } | |
| 969 if( w1 != NULL ) *w1 = lw ; | |
| 970 | |
| 971 *wid = w ; | |
| 972 *hgt = font->max_bounds.ascent + font->max_bounds.descent ; | |
| 973 } | |
| 974 else | |
| 975 *wid = *hgt = 0 ; | |
| 976 } | |
| 977 | |
| 978 | |
| 979 /* Determine the preferred size for this widget. choose 100x100 for | |
| 980 * debugging. | |
| 981 */ | |
| 982 | |
| 983 static void | |
| 984 GaugeSize (GaugeWidget gw, | |
| 985 Dimension *wid, | |
| 986 Dimension *hgt, | |
| 987 Dimension min_len) | |
| 988 { | |
| 989 int w,h ; /* width, height of gauge */ | |
| 990 int vmargin ; /* vertical margin */ | |
| 991 int hmargin ; /* horizontal margin */ | |
| 992 | |
| 993 hmargin = gw->label.internal_width ; | |
| 994 vmargin = gw->label.internal_height ; | |
| 995 | |
| 996 /* find total height (width) of contents */ | |
| 997 | |
| 998 | |
| 999 /* find minimum size for undecorated gauge */ | |
| 1000 | |
| 1001 if( gw->gauge.orientation == XtorientHorizontal ) | |
| 1002 { | |
| 1003 w = min_len ; | |
| 1004 h = GA_WID+2 ; /* gauge itself + edges */ | |
| 1005 } | |
| 1006 else | |
| 1007 { | |
| 1008 w = GA_WID+2 ; | |
| 1009 h = min_len ; | |
| 1010 } | |
| 1011 | |
| 1012 if( gw->gauge.ntics > 0 ) | |
| 1013 { | |
| 1014 if( gw->gauge.orientation == XtorientHorizontal ) | |
| 1015 { | |
| 1016 w = Max(w, gw->gauge.ntics*3) ; | |
| 1017 h += vmargin + TIC_LEN ; | |
| 1018 } | |
| 1019 else | |
| 1020 { | |
| 1021 w += hmargin + TIC_LEN ; | |
| 1022 h = Max(h, gw->gauge.ntics*3) ; | |
| 1023 } | |
| 1024 } | |
| 1025 | |
| 1026 | |
| 1027 /* If labels are requested, this gets a little interesting. | |
| 1028 * We want the end labels centered on the ends of the gauge and | |
| 1029 * the centers of the labels evenly spaced. The labels at the ends | |
| 1030 * will not be the same width, meaning that the gauge itself need | |
| 1031 * not be centered in the widget. | |
| 1032 * | |
| 1033 * First, determine the spacing. This is the width of the widest | |
| 1034 * label, plus the internal margin. Total length of the gauge is | |
| 1035 * spacing * (nlabels-1). To this, we add half the width of the | |
| 1036 * left-most label and half the width of the right-most label | |
| 1037 * to get the entire desired width of the widget. | |
| 1038 */ | |
| 1039 if( gw->gauge.nlabels > 0 ) | |
| 1040 { | |
| 1041 Dimension lwm, lw0, lw1 ; /* width of max, left, right labels */ | |
| 1042 Dimension lh ; | |
| 1043 | |
| 1044 MaxLabel(gw,&lwm,&lh, &lw0,&lw1) ; | |
| 1045 | |
| 1046 if( gw->gauge.orientation == XtorientHorizontal ) | |
| 1047 { | |
| 1048 lwm = (lwm+hmargin) * (gw->gauge.nlabels-1) + (lw0+lw1)/2 ; | |
| 1049 w = Max(w, lwm) ; | |
| 1050 h += lh + vmargin ; | |
| 1051 } | |
| 1052 else | |
| 1053 { | |
| 1054 lh = lh*gw->gauge.nlabels + (gw->gauge.nlabels - 1)*vmargin ; | |
| 1055 h = Max(h, lh) ; | |
| 1056 w += lwm + hmargin ; | |
| 1057 } | |
| 1058 } | |
| 1059 | |
| 1060 w += hmargin*2 ; | |
| 1061 h += vmargin*2 ; | |
| 1062 | |
| 1063 *wid = w ; | |
| 1064 *hgt = h ; | |
| 1065 } | |
| 1066 | |
| 1067 | |
| 1068 | |
| 1069 static void | |
| 1070 AutoScale (GaugeWidget gw) | |
| 1071 { | |
| 1072 static int scales[3] = {1,2,5} ; | |
| 1073 int sptr = 0, smult=1 ; | |
| 1074 | |
| 1075 if( gw->gauge.autoScaleDown ) | |
| 1076 gw->gauge.v1 = 0 ; | |
| 1077 while( gw->gauge.value > gw->gauge.v1 ) | |
| 1078 { | |
| 1079 if( ++sptr > 2 ) { | |
| 1080 sptr = 0 ; | |
| 1081 smult *= 10 ; | |
| 1082 } | |
| 1083 gw->gauge.v1 = scales[sptr] * smult ; | |
| 1084 } | |
| 1085 } | |
| 1086 | |
| 1087 static void | |
| 1088 EnableUpdate (GaugeWidget gw) | |
| 1089 { | |
| 1090 gw->gauge.intervalId = | |
| 1091 XtAppAddTimeOut(XtWidgetToApplicationContext((Widget)gw), | |
| 1092 gw->gauge.update * MS_PER_SEC, GaugeGetValue, | |
| 1093 (XtPointer)gw) ; | |
| 1094 } | |
| 1095 | |
| 1096 static void | |
| 1097 DisableUpdate (GaugeWidget gw) | |
| 1098 { | |
| 1099 XtRemoveTimeOut(gw->gauge.intervalId) ; | |
| 1100 } | |
| 1101 | |
| 1102 static void | |
| 1103 GaugeGetValue (XtPointer clientData, | |
| 2286 | 1104 XtIntervalId *UNUSED (intervalId)) |
| 424 | 1105 { |
| 1106 GaugeWidget gw = (GaugeWidget)clientData ; | |
| 3968 | 1107 int value ; |
| 424 | 1108 |
| 1109 if( gw->gauge.update > 0 ) | |
| 1110 EnableUpdate(gw) ; | |
| 1111 | |
| 1112 if( gw->gauge.getValue != NULL ) | |
| 1113 { | |
| 1114 XtCallCallbackList((Widget)gw, gw->gauge.getValue, (XtPointer)&value); | |
| 1115 XawGaugeSetValue((Widget)gw, value) ; | |
| 1116 } | |
| 1117 } | |
| 1118 | |
| 1119 | |
| 1120 static GC | |
| 1121 Get_GC (GaugeWidget gw, | |
| 1122 Pixel fg) | |
| 1123 { | |
| 1124 XGCValues values ; | |
| 1125 #define vmask GCForeground | |
| 1126 #define umask (GCBackground|GCSubwindowMode|GCGraphicsExposures|GCDashOffset\ | |
| 1127 |GCFont|GCDashList|GCArcMode) | |
| 1128 | |
| 1129 values.foreground = fg ; | |
| 1130 | |
| 1131 return XtAllocateGC((Widget)gw, 0, vmask, &values, 0L, umask) ; | |
| 1132 } |