static char RCSid[] = "$Id: LabelAxis.c,v 1.0 91/08/22 15:33:39 gnb Exp $"; /* * $Source: /export/data/sources/x/At/Plotter/RCS/LabelAxis.c,v $ * * $Log: LabelAxis.c,v $ * Revision 1.0 91/08/22 15:33:39 gnb * Initial revision * * */ /* Copyright 1991 by Burdett, Buckeridge & Young Ltd. All rights reserved. Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of Burdett, Buckeridge & Young Ltd. (BBY) not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. BBY DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL BBY BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* * The LabelAxis class decides the location and label of the tic * marks by looking at the application-supplied data. */ #include #include #include #include #ifdef _AtDevelopment_ #include "LabelAxisP.h" #else #include #endif static void LabelAxisInitialize P((AtLabelAxisWidget, AtLabelAxisWidget)); static Boolean LabelAxisSetValues P((AtLabelAxisWidget, AtLabelAxisWidget, AtLabelAxisWidget)); static void LabelAxisRangeProc P((AtAxisCoreWidget, double *minp, double *maxp, double *tip, int *nwp)); static void LabelAxisCalcProc P((AtAxisCoreWidget)); #define off(fld) XtOffsetOf(AtLabelAxisRec, labelaxis.fld) static XtResource resources[] = { { XtNautoScale, XtCAutoScale, XtRBoolean, sizeof(Boolean), off(auto_scale), XtRImmediate, (XtPointer) True } }; #undef off AtLabelAxisClassRec atLabelAxisClassRec = { { /* core fields */ /* superclass */ (WidgetClass) &atAxisCoreClassRec, /* class_name */ "AtLabelAxis", /* widget_size */ sizeof(AtLabelAxisRec), /* class_initialize */ NULL, /* class_part_initialize */ NULL, /* class_inited */ FALSE, /* initialize */ (XtInitProc) LabelAxisInitialize, /* initialize_hook */ NULL, /* pad */ NULL, /* pad */ NULL, /* pad */ 0, /* resources */ resources, /* num_resources */ XtNumber(resources), /* xrm_class */ NULLQUARK, /* pad */ FALSE, /* pad */ FALSE, /* pad */ FALSE, /* pad */ FALSE, /* destroy */ NULL, /* pad */ NULL, /* pad */ NULL, /* set_values */ (XtSetValuesFunc) LabelAxisSetValues, /* set_values_hook */ NULL, /* pad */ NULL, /* get_values_hook */ NULL, /* pad */ NULL, /* version */ XtVersion, /* callback_private */ NULL, /* pad */ NULL, /* pad */ NULL, /* pad */ NULL, /* pad */ NULL }, { /* atPlot fields */ /* draw */ XtInheritDraw, /* draw_icon */ XtInheritDrawIcon, /* drawPS */ XtInheritDrawPS, /* draw_iconPS */ XtInheritDrawIconPS, /* recalc */ XtInheritRecalc }, { /* labelAxis fields */ /* range_proc */ LabelAxisRangeProc, /* calc_proc */ LabelAxisCalcProc } }; WidgetClass atLabelAxisWidgetClass = (WidgetClass)&atLabelAxisClassRec; /***************************************************************** * * The core member procs */ static void LabelAxisInitialize(req, new) AtLabelAxisWidget req, new; { new->labelaxis.num_items = new->labelaxis.start = 0; *RCSid = *RCSid; /* Keep gcc quiet */ } static Boolean LabelAxisSetValues(old, req, new) AtLabelAxisWidget old, req, new; { #define Changed(fld) (old->labelaxis.fld != new->labelaxis.fld) #define AC_Changed(fld) (old->axiscore.fld != new->axiscore.fld) Boolean renum = False; if (Changed(auto_scale)) { renum = True; } if (AC_Changed(font_family) || AC_Changed(number_size)) { renum = True; } if (renum) { new->axiscore.numbers_changed = True; AtPlotterRescaleRequired((AtPlotWidget)new); } return False; } /***************************************************************** * * The LabelAxis member functions */ /* * The range proc just makes sure they are integer bounds */ static void LabelAxisRangeProc(w, minp, maxp, tip, nwp) AtAxisCoreWidget w; double *minp, *maxp, *tip; int *nwp; { AtLabelAxisPart *la = &((AtLabelAxisWidget)w)->labelaxis; if (la->auto_scale) { *minp = floor(*minp); *maxp = ceil(*maxp); *tip = 0; } else { *minp = la->start; *maxp = la->start + la->num_items - 1; *tip = 0; } } /* * The calc proc just copies the existing entries */ static void LabelAxisCalcProc(acw) AtAxisCoreWidget acw; { AtAxisCorePart *ac = &acw->axiscore; AtLabelAxisPart *la = &((AtLabelAxisWidget)acw)->labelaxis; int i, ni, imin, imax, end; String *p; imin = floor(ac->min); imax = ceil(ac->max); /* First, calculate the number of tics */ ni = 0; for (i = Min(imin, la->start), end = la->start + la->num_items; i < end || i <= imax; i++) { if (i < imin) continue; if (i > imax) break; p = (String *)((char *)la->data + (i - la->start) * la->stride); if (i == imin) ni++; else if (i == imax) ni++; else if (p && *p && **p) ni++; } ac->num_tics = ni; ac->num_subtics = 0; /* For now! */ /* Now allocate everything */ ac->tic_values = (double *)XtMalloc(sizeof (double) * ac->num_tics); ac->subtic_values = (double *)XtMalloc(sizeof (double) * ac->num_subtics); ac->tic_label_string = (String *)XtMalloc(sizeof (String) * ac->num_tics); ni = 0; for (i = Min(imin, la->start), end = la->start + la->num_items; i < end || i <= imax; i++) { if (i < imin) continue; if (i > imax) break; assert(ni < ac->num_tics); p = (String *)((char *)la->data + (i - la->start) * la->stride); if (i == imin) { ac->tic_values[ni] = i; ac->tic_label_string[ni++] = XtNewString((p && *p && **p) ? *p : ""); } else if (i == imax) { ac->tic_values[ni] = i; ac->tic_label_string[ni++] = XtNewString((p && *p && **p) ? *p : ""); } else if (p && *p && **p) { ac->tic_values[ni] = i; ac->tic_label_string[ni++] = XtNewString(*p); } } assert(ni == ac->num_tics); } /**************************************************************** * * The member routine */ void AtLabelAxisAttachData(law, data, stride, start, num) AtLabelAxisWidget law; String *data; Cardinal stride, start, num; { AtLabelAxisPart *la = &law->labelaxis; XtCheckSubclass((Widget)law, atLabelAxisWidgetClass, "AtLabelAxisAttachData needs an AtLabelAxisWidget"); la->data = data; la->stride = stride; la->start = start; la->num_items = num; law->axiscore.numbers_changed = True; AtPlotterRescaleRequired((AtPlotWidget)law); }