Mercurial > hg > xemacs-beta
annotate lwlib/xlwgauge.c @ 4522:fc7067b7f407
Backout last patch; forgot to specify file.
| author | Stephen J. Turnbull <stephen@xemacs.org> |
|---|---|
| date | Wed, 29 Oct 2008 03:37:16 +0900 |
| parents | 383ab474a241 |
| children | 726060ee587c |
| 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_ |
| 424 | 56 #include "xlwgaugeP.h" |
| 57 #include "../src/xmu.h" | |
| 58 #ifdef HAVE_XMU | |
| 59 #include <X11/Xmu/Atoms.h> | |
| 60 #include <X11/Xmu/Drawing.h> | |
| 61 #include <X11/Xmu/StdSel.h> | |
| 62 #endif | |
| 63 | |
| 64 | |
| 65 /**************************************************************** | |
| 66 * | |
| 67 * Gauge resources | |
| 68 * | |
| 69 ****************************************************************/ | |
| 70 | |
| 71 | |
| 72 static char defaultTranslations[] = | |
| 73 "<Btn1Up>: select()\n\ | |
| 74 <Key>F1: select(CLIPBOARD)\n\ | |
| 75 <Btn2Up>: paste()\n\ | |
| 76 <Key>F2: paste(CLIPBOARD)" ; | |
| 77 | |
| 78 | |
| 79 | |
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80 #define offset(field) XtOffsetOf(GaugeRec, field) |
| 424 | 81 static XtResource resources[] = { |
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82 {XtNvalue, XtCValue, XtRInt, sizeof(int), |
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83 offset(gauge.value), XtRImmediate, (XtPointer)0}, |
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84 {XtNminValue, XtCMinValue, XtRInt, sizeof(int), |
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85 offset(gauge.v0), XtRImmediate, (XtPointer)0}, |
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86 {XtNmaxValue, XtCMaxValue, XtRInt, sizeof(int), |
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87 offset(gauge.v1), XtRImmediate, (XtPointer)100}, |
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88 {XtNntics, XtCNTics, XtRInt, sizeof(int), |
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89 offset(gauge.ntics), XtRImmediate, (XtPointer) 0}, |
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90 {XtNnlabels, XtCNLabels, XtRInt, sizeof(int), |
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91 offset(gauge.nlabels), XtRImmediate, (XtPointer) 0}, |
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92 {XtNlabels, XtCLabels, XtRStringArray, sizeof(String *), |
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93 offset(gauge.labels), XtRStringArray, NULL}, |
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94 {XtNautoScaleUp, XtCAutoScaleUp, XtRBoolean, sizeof(Boolean), |
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95 offset(gauge.autoScaleUp), XtRImmediate, FALSE}, |
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96 {XtNautoScaleDown, XtCAutoScaleDown, XtRBoolean, sizeof(Boolean), |
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97 offset(gauge.autoScaleDown), XtRImmediate, FALSE}, |
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98 {XtNorientation, XtCOrientation, XtROrientation, sizeof(XtOrientation), |
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99 offset(gauge.orientation), XtRImmediate, (XtPointer)XtorientHorizontal}, |
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100 {XtNupdate, XtCInterval, XtRInt, sizeof(int), |
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101 offset(gauge.update), XtRImmediate, (XtPointer)0}, |
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102 {XtNgetValue, XtCCallback, XtRCallback, sizeof(XtPointer), |
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103 offset(gauge.getValue), XtRImmediate, (XtPointer)NULL}, |
| 424 | 104 }; |
| 105 #undef offset | |
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106 |
| 424 | 107 |
| 108 | |
| 109 /* member functions */ | |
| 110 | |
| 111 static void GaugeClassInit (void); | |
| 112 static void GaugeInit (Widget, Widget, ArgList, Cardinal *); | |
| 113 static void GaugeDestroy (Widget); | |
| 114 static void GaugeResize (Widget); | |
| 115 static void GaugeExpose (Widget, XEvent *, Region); | |
| 116 static Boolean GaugeSetValues (Widget, Widget, Widget, ArgList, Cardinal *); | |
| 117 static XtGeometryResult GaugeQueryGeometry (Widget, XtWidgetGeometry *, | |
| 118 XtWidgetGeometry *); | |
| 119 | |
| 120 /* action procs */ | |
| 121 | |
| 122 static void GaugeSelect (Widget, XEvent *, String *, Cardinal *); | |
| 123 static void GaugePaste (Widget, XEvent *, String *, Cardinal *); | |
| 124 | |
| 125 /* internal privates */ | |
| 126 | |
| 127 static void GaugeSize (GaugeWidget, Dimension *, Dimension *, Dimension); | |
| 128 static void MaxLabel (GaugeWidget, Dimension *, Dimension *, | |
| 129 Dimension *, Dimension *); | |
| 130 static void AutoScale (GaugeWidget); | |
| 131 static void EnableUpdate (GaugeWidget); | |
| 132 static void DisableUpdate (GaugeWidget); | |
| 133 | |
| 134 static void GaugeGetValue (XtPointer, XtIntervalId *); | |
| 3968 | 135 static void GaugeMercury (Display *, Window, GC, GaugeWidget, int, int); |
| 424 | 136 |
| 137 static Boolean GaugeConvert (Widget, Atom *, Atom *, Atom *, | |
| 458 | 138 XtPointer *, unsigned long *, int *); |
| 424 | 139 static void GaugeLoseSel (Widget, Atom *); |
| 140 static void GaugeDoneSel (Widget, Atom *, Atom *); | |
| 141 static void GaugeGetSelCB (Widget, XtPointer, Atom *, Atom *, | |
| 458 | 142 XtPointer, unsigned long *, int *); |
| 424 | 143 |
| 144 static GC Get_GC (GaugeWidget, Pixel); | |
| 145 | |
| 146 | |
| 147 static XtActionsRec actionsList[] = | |
| 148 { | |
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149 {"select", GaugeSelect}, |
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150 {"paste", GaugePaste}, |
| 424 | 151 } ; |
| 152 | |
| 153 | |
| 154 | |
| 155 /**************************************************************** | |
| 156 * | |
| 157 * Full class record constant | |
| 158 * | |
| 159 ****************************************************************/ | |
| 160 | |
| 161 GaugeClassRec gaugeClassRec = { | |
| 162 { | |
| 442 | 163 /* core_class fields */ |
| 424 | 164 /* superclass */ (WidgetClass) &labelClassRec, |
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165 /* class_name */ "Gauge", |
| 424 | 166 /* widget_size */ sizeof(GaugeRec), |
| 167 /* class_initialize */ GaugeClassInit, | |
| 168 /* class_part_initialize */ NULL, | |
| 169 /* class_inited */ FALSE, | |
| 170 /* initialize */ GaugeInit, | |
| 171 /* initialize_hook */ NULL, | |
| 172 /* realize */ XtInheritRealize, /* TODO? */ | |
| 173 /* actions */ actionsList, | |
| 174 /* num_actions */ XtNumber(actionsList), | |
| 175 /* resources */ resources, | |
| 176 /* num_resources */ XtNumber(resources), | |
| 177 /* xrm_class */ NULLQUARK, | |
| 178 /* compress_motion */ TRUE, | |
| 179 /* compress_exposure */ TRUE, | |
| 180 /* compress_enterleave */ TRUE, | |
| 181 /* visible_interest */ FALSE, | |
| 182 /* destroy */ GaugeDestroy, | |
| 183 /* resize */ GaugeResize, | |
| 184 /* expose */ GaugeExpose, | |
| 185 /* set_values */ GaugeSetValues, | |
| 186 /* set_values_hook */ NULL, | |
| 187 /* set_values_almost */ XtInheritSetValuesAlmost, | |
| 188 /* get_values_hook */ NULL, | |
| 189 /* accept_focus */ NULL, | |
| 190 /* version */ XtVersion, | |
| 191 /* callback_private */ NULL, | |
| 192 /* tm_table */ defaultTranslations, | |
| 193 /* query_geometry */ GaugeQueryGeometry, | |
| 194 /* display_accelerator */ XtInheritDisplayAccelerator, | |
| 195 /* extension */ NULL | |
| 196 }, | |
| 197 /* Simple class fields initialization */ | |
| 198 { | |
| 199 /* change_sensitive */ XtInheritChangeSensitive | |
| 200 }, | |
| 201 #ifdef _ThreeDP_h | |
| 202 /* ThreeD class fields initialization */ | |
| 203 { | |
| 204 XtInheritXaw3dShadowDraw /* shadowdraw */ | |
| 205 }, | |
| 206 #endif | |
| 207 /* Label class fields initialization */ | |
| 208 { | |
| 209 /* ignore */ 0 | |
| 210 }, | |
| 211 /* Gauge class fields initialization */ | |
| 212 { | |
| 213 /* extension */ NULL | |
| 214 }, | |
| 215 }; | |
| 216 | |
| 217 WidgetClass gaugeWidgetClass = (WidgetClass)&gaugeClassRec; | |
| 218 | |
| 219 | |
| 220 | |
| 221 | |
| 222 /**************************************************************** | |
| 223 * | |
| 224 * Member Procedures | |
| 225 * | |
| 226 ****************************************************************/ | |
| 227 | |
| 228 static void | |
| 229 GaugeClassInit (void) | |
| 230 { | |
| 231 XawInitializeWidgetSet(); | |
| 232 #ifdef HAVE_XMU | |
| 233 XtAddConverter(XtRString, XtROrientation, XmuCvtStringToOrientation, | |
| 234 NULL, 0) ; | |
| 235 #endif | |
| 236 } | |
| 237 | |
| 238 | |
| 239 | |
| 240 /* ARGSUSED */ | |
| 241 static void | |
| 242 GaugeInit (Widget request, | |
| 3055 | 243 Widget new_, |
| 2286 | 244 ArgList UNUSED (args), |
| 245 Cardinal *UNUSED (num_args)) | |
| 424 | 246 { |
| 3055 | 247 GaugeWidget gw = (GaugeWidget) new_; |
| 424 | 248 |
| 249 if( gw->gauge.v0 == 0 && gw->gauge.v1 == 0 ) { | |
| 250 gw->gauge.autoScaleUp = gw->gauge.autoScaleDown = TRUE ; | |
| 251 AutoScale(gw) ; | |
| 252 } | |
| 253 | |
| 254 /* If size not explicitly set, set it to our preferred size now. */ | |
| 255 | |
| 256 if( request->core.width == 0 || request->core.height == 0 ) | |
| 257 { | |
| 258 Dimension w,h ; | |
| 259 GaugeSize(gw, &w,&h, DEF_LEN) ; | |
| 260 if( request->core.width == 0 ) | |
| 3055 | 261 new_->core.width = w ; |
| 424 | 262 if( request->core.height == 0 ) |
| 3055 | 263 new_->core.height = h ; |
| 264 gw->core.widget_class->core_class.resize(new_) ; | |
| 424 | 265 } |
| 266 | |
| 267 gw->gauge.selected = None ; | |
| 268 gw->gauge.selstr = NULL ; | |
| 269 | |
| 270 if( gw->gauge.update > 0 ) | |
| 271 EnableUpdate(gw) ; | |
| 272 | |
| 273 gw->gauge.inverse_GC = Get_GC(gw, gw->core.background_pixel) ; | |
| 274 } | |
| 275 | |
| 276 static void | |
| 277 GaugeDestroy (Widget w) | |
| 278 { | |
| 279 GaugeWidget gw = (GaugeWidget)w; | |
| 280 | |
| 281 if( gw->gauge.selstr != NULL ) | |
| 282 XtFree(gw->gauge.selstr) ; | |
| 283 | |
| 284 if( gw->gauge.selected != None ) | |
| 285 XtDisownSelection(w, gw->gauge.selected, CurrentTime) ; | |
| 286 | |
| 287 XtReleaseGC(w, gw->gauge.inverse_GC) ; | |
| 288 | |
| 289 if( gw->gauge.update > 0 ) | |
| 290 DisableUpdate(gw) ; | |
| 291 } | |
| 292 | |
| 293 | |
| 294 /* React to size change from manager. Label widget will compute some | |
| 295 * internal stuff, but we need to override. | |
| 296 */ | |
| 297 | |
| 298 static void | |
| 299 GaugeResize (Widget w) | |
| 300 { | |
| 301 GaugeWidget gw = (GaugeWidget)w; | |
| 302 int size ; /* height (width) of gauge */ | |
| 303 int vmargin ; /* vertical (horizontal) margin */ | |
| 304 int hmargin ; /* horizontal (vertical) margin */ | |
| 305 | |
| 306 vmargin = gw->gauge.orientation == XtorientHorizontal ? | |
| 307 gw->label.internal_height : gw->label.internal_width ; | |
| 308 hmargin = gw->gauge.orientation == XtorientHorizontal ? | |
| 309 gw->label.internal_width : gw->label.internal_height ; | |
| 310 | |
| 311 /* TODO: need to call parent resize proc? I don't think so since | |
| 312 * we're recomputing everything from scratch anyway. | |
| 313 */ | |
| 314 | |
| 315 /* find total height (width) of contents */ | |
| 316 | |
| 317 size = GA_WID+2 ; /* gauge itself + edges */ | |
| 318 | |
| 319 if( gw->gauge.ntics > 1 ) /* tic marks */ | |
| 320 size += vmargin + TIC_LEN ; | |
| 321 | |
| 322 if( gw->gauge.nlabels > 1 ) | |
| 323 { | |
| 324 Dimension lwm, lw0, lw1 ; /* width of max, left, right labels */ | |
| 325 Dimension lh ; | |
| 326 | |
| 327 MaxLabel(gw,&lwm,&lh, &lw0,&lw1) ; | |
| 328 | |
| 329 if( gw->gauge.orientation == XtorientHorizontal ) | |
| 330 { | |
| 331 gw->gauge.margin0 = lw0 / 2 ; | |
| 332 gw->gauge.margin1 = lw1 / 2 ; | |
| 333 size += lh + vmargin ; | |
| 334 } | |
| 335 else | |
| 336 { | |
| 442 | 337 gw->gauge.margin0 = |
| 424 | 338 gw->gauge.margin1 = lh / 2 ; |
| 339 size += lwm + vmargin ; | |
| 340 } | |
| 341 } | |
| 342 else | |
| 343 gw->gauge.margin0 = gw->gauge.margin1 = 0 ; | |
| 344 | |
| 345 gw->gauge.margin0 += hmargin ; | |
| 346 gw->gauge.margin1 += hmargin ; | |
| 347 | |
| 348 /* Now distribute height (width) over components */ | |
| 349 | |
| 350 if( gw->gauge.orientation == XtorientHorizontal ) | |
| 351 gw->gauge.gmargin = (gw->core.height-size)/2 ; | |
| 352 else | |
| 353 gw->gauge.gmargin = (gw->core.width-size)/2 ; | |
| 354 | |
| 355 gw->gauge.tmargin = gw->gauge.gmargin + GA_WID+2 + vmargin ; | |
| 356 if( gw->gauge.ntics > 1 ) | |
| 357 gw->gauge.lmargin = gw->gauge.tmargin + TIC_LEN + vmargin ; | |
| 358 else | |
| 359 gw->gauge.lmargin = gw->gauge.tmargin ; | |
| 360 } | |
| 361 | |
| 362 /* | |
| 363 * Repaint the widget window | |
| 364 */ | |
| 365 | |
| 366 /* ARGSUSED */ | |
| 367 static void | |
| 368 GaugeExpose (Widget w, | |
| 2286 | 369 XEvent *UNUSED (event), |
| 370 Region UNUSED (region)) | |
| 424 | 371 { |
| 372 GaugeWidget gw = (GaugeWidget) w; | |
| 373 register Display *dpy = XtDisplay(w) ; | |
| 374 register Window win = XtWindow(w) ; | |
| 375 GC gc; /* foreground, background */ | |
| 376 GC gctop, gcbot ; /* dark, light shadows */ | |
| 377 | |
| 378 int len ; /* length (width or height) of widget */ | |
| 379 int e0,e1 ; /* ends of the gauge */ | |
| 380 int x ; | |
| 381 int y ; /* vertical (horizontal) position */ | |
| 382 int i ; | |
| 383 int v0 = gw->gauge.v0 ; | |
| 384 int v1 = gw->gauge.v1 ; | |
| 385 int value = gw->gauge.value ; | |
| 386 | |
| 387 gc = XtIsSensitive(w) ? gw->label.normal_GC : gw->label.gray_GC ; | |
| 388 | |
| 389 | |
| 390 #ifdef _ThreeDP_h | |
| 391 gctop = gw->threeD.bot_shadow_GC ; | |
| 392 gcbot = gw->threeD.top_shadow_GC ; | |
| 393 #else | |
| 394 gctop = gcbot = gc ; | |
| 395 #endif | |
| 396 | |
| 397 if( gw->gauge.orientation == XtorientHorizontal ) { | |
| 398 len = gw->core.width ; | |
| 399 } else { | |
| 400 len = gw->core.height ; | |
| 401 } | |
| 402 | |
| 403 /* if the gauge is selected, signify by drawing the background | |
| 442 | 404 * in a contrasting color. |
| 424 | 405 */ |
| 406 | |
| 407 if( gw->gauge.selected ) | |
| 408 { | |
| 409 XFillRectangle(dpy,win, gc, 0,0, w->core.width,w->core.height) ; | |
| 410 gc = gw->gauge.inverse_GC ; | |
| 411 } | |
| 412 | |
| 413 e0 = gw->gauge.margin0 ; /* left (top) end */ | |
| 414 e1 = len - gw->gauge.margin1 -1 ; /* right (bottom) end */ | |
| 415 | |
| 416 /* Draw the Gauge itself */ | |
| 417 | |
| 418 y = gw->gauge.gmargin ; | |
| 419 | |
| 420 if( gw->gauge.orientation == XtorientHorizontal ) /* horizontal */ | |
| 421 { | |
| 422 XDrawLine(dpy,win,gctop, e0+1,y, e1-1,y) ; | |
| 423 XDrawLine(dpy,win,gctop, e0,y+1, e0,y+GA_WID) ; | |
| 424 XDrawLine(dpy,win,gcbot, e0+1, y+GA_WID+1, e1-1, y+GA_WID+1) ; | |
| 425 XDrawLine(dpy,win,gcbot, e1,y+1, e1,y+GA_WID) ; | |
| 426 } | |
| 427 else /* vertical */ | |
| 428 { | |
| 429 XDrawLine(dpy,win,gctop, y,e0+1, y,e1-1) ; | |
| 430 XDrawLine(dpy,win,gctop, y+1,e0, y+GA_WID,e0) ; | |
| 431 XDrawLine(dpy,win,gcbot, y+GA_WID+1,e0+1, y+GA_WID+1, e1-1) ; | |
| 432 XDrawLine(dpy,win,gcbot, y+1,e1, y+GA_WID,e1) ; | |
| 433 } | |
| 434 | |
| 435 | |
| 436 /* draw the mercury */ | |
| 437 | |
| 438 GaugeMercury(dpy, win, gc, gw, 0,value) ; | |
| 439 | |
| 440 | |
| 441 if( gw->gauge.ntics > 1 ) | |
| 442 { | |
| 443 y = gw->gauge.tmargin ; | |
| 444 for(i=0; i<gw->gauge.ntics; ++i) | |
| 445 { | |
| 446 x = e0 + i*(e1-e0-1)/(gw->gauge.ntics-1) ; | |
| 447 if( gw->gauge.orientation == XtorientHorizontal ) { | |
| 448 XDrawLine(dpy,win,gcbot, x,y+1, x,y+TIC_LEN-2) ; | |
| 449 XDrawLine(dpy,win,gcbot, x,y, x+1,y) ; | |
| 450 XDrawLine(dpy,win,gctop, x+1,y+1, x+1,y+TIC_LEN-2) ; | |
| 451 XDrawLine(dpy,win,gctop, x,y+TIC_LEN-1, x+1,y+TIC_LEN-1) ; | |
| 452 } | |
| 453 else { | |
| 454 XDrawLine(dpy,win,gcbot, y+1,x, y+TIC_LEN-2,x) ; | |
| 455 XDrawLine(dpy,win,gcbot, y,x, y,x+1) ; | |
| 456 XDrawLine(dpy,win,gctop, y+1,x+1, y+TIC_LEN-2,x+1) ; | |
| 457 XDrawLine(dpy,win,gctop, y+TIC_LEN-1,x, y+TIC_LEN-1,x+1) ; | |
| 458 } | |
| 459 } | |
| 460 } | |
| 461 | |
| 462 /* draw labels */ | |
| 463 if( gw->gauge.nlabels > 1 ) | |
| 464 { | |
| 465 char label[20], *s = label ; | |
| 442 | 466 int xlen, wd,h =0 ; |
| 424 | 467 |
| 468 if( gw->gauge.orientation == XtorientHorizontal ) | |
| 469 y = gw->gauge.lmargin + gw->label.font->max_bounds.ascent - 1 ; | |
| 470 else { | |
| 471 y = gw->gauge.lmargin ; | |
| 472 h = gw->label.font->max_bounds.ascent / 2 ; | |
| 473 } | |
| 474 | |
| 475 for(i=0; i<gw->gauge.nlabels; ++i) | |
| 476 { | |
| 477 if( gw->gauge.labels == NULL ) | |
| 478 sprintf(label, "%d", v0+i*(v1 - v0)/(gw->gauge.nlabels - 1)) ; | |
| 479 else | |
| 480 s = gw->gauge.labels[i] ; | |
| 481 if( s != NULL ) { | |
| 482 x = e0 + i*(e1-e0-1)/(gw->gauge.nlabels-1) ; | |
| 442 | 483 xlen = strlen(s) ; |
| 424 | 484 if( gw->gauge.orientation == XtorientHorizontal ) { |
| 442 | 485 wd = XTextWidth(gw->label.font, s, xlen) ; |
| 486 XDrawString(dpy,win,gc, x-wd/2,y, s,xlen) ; | |
| 424 | 487 } |
| 488 else { | |
| 442 | 489 XDrawString(dpy,win,gc, y,x+h, s,xlen) ; |
| 424 | 490 } |
| 491 } | |
| 492 } | |
| 493 } | |
| 494 } | |
| 495 | |
| 496 | |
| 497 /* | |
| 498 * Set specified arguments into widget | |
| 499 */ | |
| 500 | |
| 501 static Boolean | |
| 502 GaugeSetValues (Widget old, | |
| 2286 | 503 Widget UNUSED (request), |
| 3055 | 504 Widget new_, |
| 2286 | 505 ArgList UNUSED (args), |
| 506 Cardinal *UNUSED (num_args)) | |
| 424 | 507 { |
| 508 GaugeWidget oldgw = (GaugeWidget) old; | |
| 3055 | 509 GaugeWidget gw = (GaugeWidget) new_; |
| 424 | 510 Boolean was_resized = False; |
| 511 | |
| 512 if( gw->gauge.selected != None ) { | |
| 3055 | 513 XtDisownSelection(new_, gw->gauge.selected, CurrentTime) ; |
| 424 | 514 gw->gauge.selected = None ; |
| 515 } | |
| 516 | |
| 517 /* Changes to v0,v1,labels, ntics, nlabels require resize & redraw. */ | |
| 518 /* Change to value requires redraw and possible resize if autoscale */ | |
| 519 | |
| 520 was_resized = | |
| 521 gw->gauge.v0 != oldgw->gauge.v0 || | |
| 522 gw->gauge.v1 != oldgw->gauge.v1 || | |
| 523 gw->gauge.ntics != oldgw->gauge.ntics || | |
| 524 gw->gauge.nlabels != oldgw->gauge.nlabels || | |
| 525 gw->gauge.labels != oldgw->gauge.labels ; | |
| 526 | |
| 527 if( (gw->gauge.autoScaleUp && gw->gauge.value > gw->gauge.v1) || | |
| 528 (gw->gauge.autoScaleDown && gw->gauge.value < gw->gauge.v1/3 )) | |
| 529 { | |
| 530 AutoScale(gw) ; | |
| 531 was_resized = TRUE ; | |
| 532 } | |
| 533 | |
| 534 if( was_resized ) { | |
| 535 if( gw->label.resize ) | |
| 536 GaugeSize(gw, &gw->core.width, &gw->core.height, DEF_LEN) ; | |
| 537 else | |
| 3055 | 538 GaugeResize(new_) ; |
| 424 | 539 } |
| 442 | 540 |
| 424 | 541 if( gw->gauge.update != oldgw->gauge.update ) |
| 542 { | |
| 543 if( gw->gauge.update > 0 ) | |
| 544 EnableUpdate(gw) ; | |
| 545 else | |
| 546 DisableUpdate(gw) ; | |
| 547 } | |
| 548 | |
| 549 if( gw->core.background_pixel != oldgw->core.background_pixel ) | |
| 550 { | |
| 3055 | 551 XtReleaseGC(new_, gw->gauge.inverse_GC) ; |
| 424 | 552 gw->gauge.inverse_GC = Get_GC(gw, gw->core.background_pixel) ; |
| 553 } | |
| 554 | |
| 555 return was_resized || gw->gauge.value != oldgw->gauge.value || | |
| 3055 | 556 XtIsSensitive(old) != XtIsSensitive(new_); |
| 424 | 557 } |
| 558 | |
| 559 | |
| 560 static XtGeometryResult | |
| 561 GaugeQueryGeometry (Widget w, | |
| 562 XtWidgetGeometry *intended, | |
| 563 XtWidgetGeometry *preferred) | |
| 564 { | |
| 565 register GaugeWidget gw = (GaugeWidget)w; | |
| 566 | |
| 567 if( intended->width == w->core.width && | |
| 568 intended->height == w->core.height ) | |
| 569 return XtGeometryNo ; | |
| 570 | |
| 571 preferred->request_mode = CWWidth | CWHeight; | |
| 572 GaugeSize(gw, &preferred->width, &preferred->height, DEF_LEN) ; | |
| 573 | |
| 574 if( (!(intended->request_mode & CWWidth) || | |
| 575 intended->width >= preferred->width) && | |
| 576 (!(intended->request_mode & CWHeight) || | |
| 577 intended->height >= preferred->height) ) | |
| 578 return XtGeometryYes; | |
| 579 else | |
| 580 return XtGeometryAlmost; | |
| 581 } | |
| 582 | |
| 583 | |
| 584 | |
| 585 | |
| 586 /**************************************************************** | |
| 587 * | |
| 588 * Action Procedures | |
| 589 * | |
| 590 ****************************************************************/ | |
| 591 | |
| 592 static void | |
| 593 GaugeSelect (Widget w, | |
| 594 XEvent *event, | |
| 595 String *params, | |
| 596 Cardinal *num_params) | |
| 597 { | |
| 598 GaugeWidget gw = (GaugeWidget)w ; | |
| 599 Atom seln = XA_PRIMARY ; | |
| 600 | |
| 601 if( gw->gauge.selected != None ) { | |
| 602 XtDisownSelection(w, gw->gauge.selected, CurrentTime) ; | |
| 603 gw->gauge.selected = None ; | |
| 604 } | |
| 605 | |
| 606 if( *num_params > 0 ) { | |
| 607 seln = XInternAtom(XtDisplay(w), params[0], False) ; | |
| 608 printf("atom %s is %ld\n", params[0], seln) ; | |
| 609 } | |
| 610 | |
| 611 if( ! XtOwnSelection(w, seln, event->xbutton.time, GaugeConvert, | |
| 612 GaugeLoseSel, GaugeDoneSel) ) | |
| 613 { | |
| 614 /* in real code, this error message would be replaced by | |
| 615 * something more elegant, or at least deleted | |
| 616 */ | |
| 617 | |
| 618 fprintf(stderr, "Gauge failed to get selection, try again\n") ; | |
| 619 } | |
| 620 else | |
| 621 { | |
| 622 gw->gauge.selected = TRUE ; | |
| 623 gw->gauge.selstr = (String)XtMalloc(4*sizeof(int)) ; | |
| 624 sprintf(gw->gauge.selstr, "%d", gw->gauge.value) ; | |
| 625 GaugeExpose(w,0,0) ; | |
| 626 } | |
| 627 } | |
| 628 | |
| 629 | |
| 630 static Boolean | |
| 631 GaugeConvert (Widget w, | |
| 632 Atom *selection, /* usually XA_PRIMARY */ | |
| 633 Atom *target, /* requested target */ | |
| 634 Atom *type, /* returned type */ | |
| 635 XtPointer *value, /* returned value */ | |
| 458 | 636 unsigned long *length, /* returned length */ |
| 424 | 637 int *format) /* returned format */ |
| 638 { | |
| 639 GaugeWidget gw = (GaugeWidget)w ; | |
| 640 XSelectionRequestEvent *req ; | |
| 641 | |
| 642 printf( "requesting selection %s:%s\n", | |
| 643 XGetAtomName(XtDisplay(w),*selection), | |
| 644 XGetAtomName(XtDisplay(w),*target)); | |
| 645 | |
| 646 #ifdef HAVE_XMU | |
| 647 if( *target == XA_TARGETS(XtDisplay(w)) ) | |
| 648 { | |
| 2271 | 649 XPointer stdTargets; |
| 650 Atom *rval ; | |
| 458 | 651 unsigned long stdLength ; |
| 424 | 652 |
| 653 /* XmuConvertStandardSelection can handle this. This function | |
| 654 * will return a list of standard targets. We prepend TEXT, | |
| 655 * STRING and INTEGER to the list and return it. | |
| 656 */ | |
| 657 | |
| 658 req = XtGetSelectionRequest(w, *selection, NULL) ; | |
| 659 XmuConvertStandardSelection(w, req->time, selection, target, | |
| 2271 | 660 type, &stdTargets, &stdLength, format) ; |
| 424 | 661 |
| 662 *type = XA_ATOM ; /* TODO: needed? */ | |
| 663 *length = stdLength + 3 ; | |
| 664 rval = (Atom *) XtMalloc(sizeof(Atom)*(stdLength+3)) ; | |
| 665 *value = (XtPointer) rval ; | |
| 666 *rval++ = XA_INTEGER ; | |
| 667 *rval++ = XA_STRING ; | |
| 668 *rval++ = XA_TEXT(XtDisplay(w)) ; | |
| 2271 | 669 memcpy(rval, stdTargets, stdLength*sizeof(Atom)) ; |
| 424 | 670 XtFree((char*) stdTargets) ; |
| 671 *format = 8*sizeof(Atom) ; /* TODO: needed? */ | |
| 672 return True ; | |
| 673 } | |
| 674 | |
| 442 | 675 else |
| 424 | 676 #endif |
| 677 if( *target == XA_INTEGER ) | |
| 678 { | |
| 679 *type = XA_INTEGER ; | |
| 680 *length = 1 ; | |
| 681 *value = (XtPointer) &gw->gauge.value ; | |
| 682 *format = 8*sizeof(int) ; | |
| 683 return True ; | |
| 684 } | |
| 685 | |
| 442 | 686 else if( *target == XA_STRING |
| 424 | 687 #ifdef HAVE_XMU |
| 442 | 688 || |
| 689 *target == XA_TEXT(XtDisplay(w)) | |
| 424 | 690 #endif |
| 691 ) | |
| 692 { | |
| 693 *type = *target ; | |
| 694 *length = strlen(gw->gauge.selstr)*sizeof(char) ; | |
| 695 *value = (XtPointer) gw->gauge.selstr ; | |
| 696 *format = 8 ; | |
| 697 return True ; | |
| 698 } | |
| 699 | |
| 700 else | |
| 701 { | |
| 702 /* anything else, we just give it to XmuConvertStandardSelection() */ | |
| 703 #ifdef HAVE_XMU | |
| 704 req = XtGetSelectionRequest(w, *selection, NULL) ; | |
| 705 if( XmuConvertStandardSelection(w, req->time, selection, target, | |
| 706 type, (XPointer *) value, length, format) ) | |
| 707 return True ; | |
| 442 | 708 else |
| 424 | 709 #endif |
| 710 { | |
| 711 printf( | |
| 712 "Gauge: requestor is requesting unsupported selection %s:%s\n", | |
| 713 XGetAtomName(XtDisplay(w),*selection), | |
| 714 XGetAtomName(XtDisplay(w),*target)); | |
| 715 return False ; | |
| 716 } | |
| 717 } | |
| 718 } | |
| 719 | |
| 720 | |
| 721 | |
| 722 static void | |
| 723 GaugeLoseSel (Widget w, | |
| 2286 | 724 Atom *UNUSED (selection)) /* usually XA_PRIMARY */ |
| 424 | 725 { |
| 726 GaugeWidget gw = (GaugeWidget)w ; | |
| 727 Display *dpy = XtDisplay(w) ; | |
| 728 Window win = XtWindow(w) ; | |
| 729 | |
| 730 if( gw->gauge.selstr != NULL ) { | |
| 731 XtFree(gw->gauge.selstr) ; | |
| 732 gw->gauge.selstr = NULL ; | |
| 733 } | |
| 734 | |
| 735 gw->gauge.selected = False ; | |
| 736 XClearWindow(dpy,win) ; | |
| 737 GaugeExpose(w,0,0) ; | |
| 738 } | |
| 739 | |
| 740 | |
| 741 static void | |
| 2286 | 742 GaugeDoneSel (Widget UNUSED (w), |
| 743 Atom *UNUSED (selection), /* usually XA_PRIMARY */ | |
| 744 Atom *UNUSED (target)) /* requested target */ | |
| 424 | 745 { |
| 746 /* selection done, anything to do? */ | |
| 747 } | |
| 748 | |
| 749 | |
| 750 static void | |
| 751 GaugePaste (Widget w, | |
| 752 XEvent *event, | |
| 753 String *params, | |
| 754 Cardinal *num_params) | |
| 755 { | |
| 756 Atom seln = XA_PRIMARY ; | |
| 757 | |
| 758 if( *num_params > 0 ) { | |
| 759 seln = XInternAtom(XtDisplay(w), params[0], False) ; | |
| 760 printf("atom %s is %ld\n", params[0], seln) ; | |
| 761 } | |
| 762 | |
| 763 /* try for integer value first */ | |
| 764 XtGetSelectionValue(w, seln, XA_INTEGER, | |
| 765 GaugeGetSelCB, (XtPointer)XA_INTEGER, | |
| 766 event->xbutton.time) ; | |
| 767 } | |
| 768 | |
| 769 static void | |
| 770 GaugeGetSelCB (Widget w, | |
| 771 XtPointer client, | |
| 772 Atom *selection, | |
| 773 Atom *type, | |
| 774 XtPointer value, | |
| 2286 | 775 unsigned long *UNUSED (length), |
| 776 int *UNUSED (format)) | |
| 424 | 777 { |
| 778 Display *dpy = XtDisplay(w) ; | |
| 779 Atom target = (Atom)client ; | |
| 780 int *iptr ; | |
| 781 char *cptr ; | |
| 782 | |
| 783 if( *type == XA_INTEGER ) { | |
| 784 iptr = (int *)value ; | |
| 785 XawGaugeSetValue(w, *iptr) ; | |
| 786 } | |
| 787 | |
| 442 | 788 else if( *type == XA_STRING |
| 424 | 789 #ifdef HAVE_XMU |
| 790 || | |
| 442 | 791 *type == XA_TEXT(dpy) |
| 424 | 792 #endif |
| 442 | 793 ) |
| 424 | 794 { |
| 795 cptr = (char *)value ; | |
| 796 XawGaugeSetValue(w, atoi(cptr)) ; | |
| 797 } | |
| 798 | |
| 799 /* failed, try string */ | |
| 800 else if( *type == None && target == XA_INTEGER ) | |
| 801 XtGetSelectionValue(w, *selection, XA_STRING, | |
| 802 GaugeGetSelCB, (XtPointer)XA_STRING, | |
| 803 CurrentTime) ; | |
| 804 } | |
| 805 | |
| 806 | |
| 807 | |
| 808 /**************************************************************** | |
| 809 * | |
| 810 * Public Procedures | |
| 811 * | |
| 812 ****************************************************************/ | |
| 813 | |
| 814 | |
| 815 /* Change gauge value. Only undraw or draw what needs to be | |
| 816 * changed. | |
| 817 */ | |
| 818 | |
| 819 void | |
| 3968 | 820 XawGaugeSetValue (Widget w, int value) |
| 424 | 821 { |
| 822 GaugeWidget gw = (GaugeWidget)w ; | |
| 823 int oldvalue ; | |
| 824 GC gc ; | |
| 825 | |
| 826 if( gw->gauge.selected != None ) { | |
| 827 XtDisownSelection(w, gw->gauge.selected, CurrentTime) ; | |
| 828 gw->gauge.selected = None ; | |
| 829 } | |
| 830 | |
| 831 if( !XtIsRealized(w) ) { | |
| 832 gw->gauge.value = value ; | |
| 833 return ; | |
| 834 } | |
| 835 | |
| 836 /* need to rescale? */ | |
| 647 | 837 if(( gw->gauge.autoScaleUp && (int) value > gw->gauge.v1) || |
| 838 (gw->gauge.autoScaleDown && (int) value < gw->gauge.v1/3 )) | |
| 424 | 839 { |
| 3374 | 840 XtVaSetValues(w, XtNvalue, value, NULL) ; |
| 424 | 841 return ; |
| 842 } | |
| 843 | |
| 844 oldvalue = gw->gauge.value ; | |
| 845 gw->gauge.value = value ; | |
| 846 | |
| 847 gc = XtIsSensitive(w) ? gw->label.normal_GC : gw->label.gray_GC ; | |
| 848 GaugeMercury(XtDisplay(w), XtWindow(w), gc, gw, oldvalue,value) ; | |
| 849 } | |
| 850 | |
| 851 | |
| 3968 | 852 int |
| 424 | 853 XawGaugeGetValue (Widget w) |
| 854 { | |
| 855 GaugeWidget gw = (GaugeWidget)w ; | |
| 856 return gw->gauge.value ; | |
| 857 } | |
| 858 | |
| 859 | |
| 860 | |
| 861 | |
| 862 /**************************************************************** | |
| 863 * | |
| 864 * Private Procedures | |
| 865 * | |
| 866 ****************************************************************/ | |
| 867 | |
| 868 /* draw the mercury over a specific region */ | |
| 869 | |
| 870 static void | |
| 871 GaugeMercury (Display *dpy, | |
| 872 Window win, | |
| 873 GC gc, | |
| 874 GaugeWidget gw, | |
| 3968 | 875 int val0, |
| 876 int val1) | |
| 424 | 877 { |
| 878 int v0 = gw->gauge.v0 ; | |
| 879 int v1 = gw->gauge.v1 ; | |
| 880 int vd = v1 - v0 ; | |
| 881 Dimension len ; /* length (width or height) of gauge */ | |
| 882 Position e0, e1 ; /* gauge ends */ | |
| 883 Position p0, p1 ; /* mercury ends */ | |
| 884 int y ; /* vertical (horizontal) position */ | |
| 885 Boolean undraw = FALSE ; | |
| 886 | |
| 887 len = gw->gauge.orientation == XtorientHorizontal ? | |
| 888 gw->core.width : gw->core.height ; | |
| 889 | |
| 890 e0 = gw->gauge.margin0 ; /* left (top) end */ | |
| 891 e1 = len - gw->gauge.margin1 -1 ; /* right (bottom) end */ | |
| 892 | |
| 893 if( vd <= 0 ) vd = 1 ; | |
| 894 | |
| 3968 | 895 if( val0 < v0 ) val0 = v0 ; |
| 896 else if( val0 > v1 ) val0 = v1 ; | |
| 897 if( val1 < v0 ) val1 = v0 ; | |
| 898 else if( val1 > v1 ) val1 = v1 ; | |
| 424 | 899 |
| 900 p0 = (val0-v0)*(e1-e0-1)/vd ; | |
| 901 p1 = (val1-v0)*(e1-e0-1)/vd ; | |
| 902 | |
| 903 if( p1 == p0 ) | |
| 904 return ; | |
| 905 | |
| 906 y = gw->gauge.gmargin ; | |
| 907 | |
| 908 if( p1 < p0 ) | |
| 909 { | |
| 910 Position tmp = p0 ; | |
| 911 p0 = p1 ; | |
| 912 p1 = tmp ; | |
| 913 gc = gw->label.normal_GC ; | |
| 914 XSetForeground(dpy,gc, gw->core.background_pixel) ; | |
| 915 undraw = TRUE ; | |
| 916 } | |
| 917 | |
| 918 if( gw->gauge.orientation == XtorientHorizontal ) | |
| 919 XFillRectangle(dpy,win,gc, e0+p0+1,y+1, p1-p0,GA_WID) ; | |
| 920 else | |
| 921 XFillRectangle(dpy,win,gc, y+1,e1-p1, GA_WID,p1-p0) ; | |
| 922 | |
| 923 if( undraw ) | |
| 924 XSetForeground(dpy,gc, gw->label.foreground) ; | |
| 925 } | |
| 926 | |
| 927 | |
| 928 | |
| 929 /* Search the labels, find the largest one. */ | |
| 930 /* TODO: handle vertical fonts? */ | |
| 931 | |
| 932 static void | |
| 933 MaxLabel (GaugeWidget gw, | |
| 934 Dimension *wid, /* max label width */ | |
| 935 Dimension *hgt, /* max label height */ | |
| 936 Dimension *w0, /* width of first label */ | |
| 937 Dimension *w1) /* width of last label */ | |
| 938 { | |
| 939 char lstr[80], *lbl ; | |
| 940 int w ; | |
| 941 XFontStruct *font = gw->label.font ; | |
| 942 int i ; | |
| 943 int lw = 0; | |
| 944 int v0 = gw->gauge.v0 ; | |
| 945 int dv = gw->gauge.v1 - v0 ; | |
| 946 int n = gw->gauge.nlabels ; | |
| 947 | |
| 948 if( n > 0 ) | |
| 949 { | |
| 950 if( --n <= 0 ) {n = 1 ; v0 += dv/2 ;} | |
| 951 | |
| 952 /* loop through all labels, figure out how much room they | |
| 953 * need. | |
| 954 */ | |
| 955 w = 0 ; | |
| 956 for(i=0; i<gw->gauge.nlabels; ++i) | |
| 957 { | |
| 958 if( gw->gauge.labels == NULL ) /* numeric labels */ | |
| 959 sprintf(lbl = lstr,"%d", v0 + i*dv/n) ; | |
| 960 else | |
| 961 lbl = gw->gauge.labels[i] ; | |
| 962 | |
| 963 if( lbl != NULL ) { | |
| 964 lw = XTextWidth(font, lbl, strlen(lbl)) ; | |
| 965 w = Max( w, lw ) ; | |
| 966 } | |
| 967 else | |
| 968 lw = 0 ; | |
| 969 | |
| 970 if( i == 0 && w0 != NULL ) *w0 = lw ; | |
| 971 } | |
| 972 if( w1 != NULL ) *w1 = lw ; | |
| 973 | |
| 974 *wid = w ; | |
| 975 *hgt = font->max_bounds.ascent + font->max_bounds.descent ; | |
| 976 } | |
| 977 else | |
| 978 *wid = *hgt = 0 ; | |
| 979 } | |
| 980 | |
| 981 | |
| 982 /* Determine the preferred size for this widget. choose 100x100 for | |
| 983 * debugging. | |
| 984 */ | |
| 985 | |
| 986 static void | |
| 987 GaugeSize (GaugeWidget gw, | |
| 988 Dimension *wid, | |
| 989 Dimension *hgt, | |
| 990 Dimension min_len) | |
| 991 { | |
| 992 int w,h ; /* width, height of gauge */ | |
| 993 int vmargin ; /* vertical margin */ | |
| 994 int hmargin ; /* horizontal margin */ | |
| 995 | |
| 996 hmargin = gw->label.internal_width ; | |
| 997 vmargin = gw->label.internal_height ; | |
| 998 | |
| 999 /* find total height (width) of contents */ | |
| 1000 | |
| 1001 | |
| 1002 /* find minimum size for undecorated gauge */ | |
| 1003 | |
| 1004 if( gw->gauge.orientation == XtorientHorizontal ) | |
| 1005 { | |
| 1006 w = min_len ; | |
| 1007 h = GA_WID+2 ; /* gauge itself + edges */ | |
| 1008 } | |
| 1009 else | |
| 1010 { | |
| 1011 w = GA_WID+2 ; | |
| 1012 h = min_len ; | |
| 1013 } | |
| 1014 | |
| 1015 if( gw->gauge.ntics > 0 ) | |
| 1016 { | |
| 1017 if( gw->gauge.orientation == XtorientHorizontal ) | |
| 1018 { | |
| 1019 w = Max(w, gw->gauge.ntics*3) ; | |
| 1020 h += vmargin + TIC_LEN ; | |
| 1021 } | |
| 1022 else | |
| 1023 { | |
| 1024 w += hmargin + TIC_LEN ; | |
| 1025 h = Max(h, gw->gauge.ntics*3) ; | |
| 1026 } | |
| 1027 } | |
| 1028 | |
| 1029 | |
| 1030 /* If labels are requested, this gets a little interesting. | |
| 1031 * We want the end labels centered on the ends of the gauge and | |
| 1032 * the centers of the labels evenly spaced. The labels at the ends | |
| 1033 * will not be the same width, meaning that the gauge itself need | |
| 1034 * not be centered in the widget. | |
| 1035 * | |
| 1036 * First, determine the spacing. This is the width of the widest | |
| 1037 * label, plus the internal margin. Total length of the gauge is | |
| 1038 * spacing * (nlabels-1). To this, we add half the width of the | |
| 1039 * left-most label and half the width of the right-most label | |
| 1040 * to get the entire desired width of the widget. | |
| 1041 */ | |
| 1042 if( gw->gauge.nlabels > 0 ) | |
| 1043 { | |
| 1044 Dimension lwm, lw0, lw1 ; /* width of max, left, right labels */ | |
| 1045 Dimension lh ; | |
| 1046 | |
| 1047 MaxLabel(gw,&lwm,&lh, &lw0,&lw1) ; | |
| 1048 | |
| 1049 if( gw->gauge.orientation == XtorientHorizontal ) | |
| 1050 { | |
| 1051 lwm = (lwm+hmargin) * (gw->gauge.nlabels-1) + (lw0+lw1)/2 ; | |
| 1052 w = Max(w, lwm) ; | |
| 1053 h += lh + vmargin ; | |
| 1054 } | |
| 1055 else | |
| 1056 { | |
| 1057 lh = lh*gw->gauge.nlabels + (gw->gauge.nlabels - 1)*vmargin ; | |
| 1058 h = Max(h, lh) ; | |
| 1059 w += lwm + hmargin ; | |
| 1060 } | |
| 1061 } | |
| 1062 | |
| 1063 w += hmargin*2 ; | |
| 1064 h += vmargin*2 ; | |
| 1065 | |
| 1066 *wid = w ; | |
| 1067 *hgt = h ; | |
| 1068 } | |
| 1069 | |
| 1070 | |
| 1071 | |
| 1072 static void | |
| 1073 AutoScale (GaugeWidget gw) | |
| 1074 { | |
| 1075 static int scales[3] = {1,2,5} ; | |
| 1076 int sptr = 0, smult=1 ; | |
| 1077 | |
| 1078 if( gw->gauge.autoScaleDown ) | |
| 1079 gw->gauge.v1 = 0 ; | |
| 1080 while( gw->gauge.value > gw->gauge.v1 ) | |
| 1081 { | |
| 1082 if( ++sptr > 2 ) { | |
| 1083 sptr = 0 ; | |
| 1084 smult *= 10 ; | |
| 1085 } | |
| 1086 gw->gauge.v1 = scales[sptr] * smult ; | |
| 1087 } | |
| 1088 } | |
| 1089 | |
| 1090 static void | |
| 1091 EnableUpdate (GaugeWidget gw) | |
| 1092 { | |
| 1093 gw->gauge.intervalId = | |
| 1094 XtAppAddTimeOut(XtWidgetToApplicationContext((Widget)gw), | |
| 1095 gw->gauge.update * MS_PER_SEC, GaugeGetValue, | |
| 1096 (XtPointer)gw) ; | |
| 1097 } | |
| 1098 | |
| 1099 static void | |
| 1100 DisableUpdate (GaugeWidget gw) | |
| 1101 { | |
| 1102 XtRemoveTimeOut(gw->gauge.intervalId) ; | |
| 1103 } | |
| 1104 | |
| 1105 static void | |
| 1106 GaugeGetValue (XtPointer clientData, | |
| 2286 | 1107 XtIntervalId *UNUSED (intervalId)) |
| 424 | 1108 { |
| 1109 GaugeWidget gw = (GaugeWidget)clientData ; | |
| 3968 | 1110 int value ; |
| 424 | 1111 |
| 1112 if( gw->gauge.update > 0 ) | |
| 1113 EnableUpdate(gw) ; | |
| 1114 | |
| 1115 if( gw->gauge.getValue != NULL ) | |
| 1116 { | |
| 1117 XtCallCallbackList((Widget)gw, gw->gauge.getValue, (XtPointer)&value); | |
| 1118 XawGaugeSetValue((Widget)gw, value) ; | |
| 1119 } | |
| 1120 } | |
| 1121 | |
| 1122 | |
| 1123 static GC | |
| 1124 Get_GC (GaugeWidget gw, | |
| 1125 Pixel fg) | |
| 1126 { | |
| 1127 XGCValues values ; | |
| 1128 #define vmask GCForeground | |
| 1129 #define umask (GCBackground|GCSubwindowMode|GCGraphicsExposures|GCDashOffset\ | |
| 1130 |GCFont|GCDashList|GCArcMode) | |
| 1131 | |
| 1132 values.foreground = fg ; | |
| 1133 | |
| 1134 return XtAllocateGC((Widget)gw, 0, vmask, &values, 0L, umask) ; | |
| 1135 } |