/* * eplot.c * Test 5: plotter using the athena widget set * * Test plotting with extending data (simulated with timer) * * klin, Wed Dec 9 17:58:09 1992 */ #include #include #include #include #include #include #include #include #include #define IVTM 50 /* Update interval: 50 ms */ #define DWID 640 /* Plotter width */ #define DHEI 420 /* Plotter height */ #define MINW 200 /* Min window width */ #define MINH 128 /* Min window height */ #define MIN 0.0 /* Min X/Y values */ #define XTIC 15.0 /* Default X tic interval */ #define YTIC 25.0 /* Default Y tic interval */ #define XMAX 120.0 /* Initial X min value */ #define XINC 30.0 /* X min/max increment */ #define YMAX 100.0 /* Initial Y max value */ #define CNUM 121 /* # of data points */ #define DNUM 30 #define Random(r) ((double) (random() % r)) /* * The application context, widgets and timer */ static XtAppContext appcontext; static Widget form; static Widget quitbutton, startbutton, stopbutton, contbutton; static XtIntervalId timer = 0; /* * The plotter widgets */ static Widget plotter, xaxis, yaxis; static Widget line1, line2, line3; /* * The 'dynamic' plot data */ typedef struct _curve { double x; double y1; double y2; double y3; } curve; static curve data[CNUM]; static int number; static int second; static double xmin; static double xmax; static double ymin; static double ymax; static Boolean running = False; void SetTimer(); /* * Create the plotter, the axes and the lines */ void MakePlotter(parent) Widget parent; { Arg args[16]; double tic; int n; /* Create the plotter */ n = 0; XtSetArg(args[n], XtNtitle, "CPU States (in %)"); n++; XtSetArg(args[n], XtNshowLegend, True); n++; XtSetArg(args[n], XtNwidth, DWID); n++; XtSetArg(args[n], XtNheight, DHEI); n++; XtSetArg(args[n], XtNborderWidth, 2); n++; XtSetArg(args[n], XtNusePixmap, True); n++; XtSetArg(args[n], XtNuseCursors, False); n++; plotter = XtCreateManagedWidget("plotter", atPlotterWidgetClass, parent, args, n); /* Create the x and y axes */ n = 0; XtSetArg(args[n], XtNlabel, "Time (in secs)"); n++; XtSetArg(args[n], XtNaxisWidth, 1); n++; XtSetArg(args[n], XtNticsInside, True); n++; XtSetArg(args[n], XtNticsOutside, False); n++; XtSetArg(args[n], XtNlinTicFormat, "%g"); n++; tic = XTIC; XtSetArg(args[n], XtNticInterval, &tic); n++; XtSetArg(args[n], XtNautoTics, False); n++; xmin = MIN; XtSetArg(args[n], XtNmin, &xmin); n++; xmax = XMAX; XtSetArg(args[n], XtNmax, &xmax); n++; XtSetArg(args[n], XtNautoScale, False); n++; xaxis = XtCreateWidget("xaxis", atXYAxisWidgetClass, plotter, args, n); n = 0; XtSetArg(args[n], XtNticsInside, True); n++; XtSetArg(args[n], XtNticsOutside, False); n++; XtSetArg(args[n], XtNvertical, True); n++; XtSetArg(args[n], XtNlabel, "Percent"); n++; XtSetArg(args[n], XtNaxisWidth, 1); n++; XtSetArg(args[n], XtNlinTicFormat, "%g"); n++; tic = YTIC; XtSetArg(args[n], XtNticInterval, &tic); n++; XtSetArg(args[n], XtNautoTics, False); n++; ymin = MIN; XtSetArg(args[n], XtNmin, &ymin); n++; ymax = YMAX; XtSetArg(args[n], XtNmax, &ymax); n++; XtSetArg(args[n], XtNautoScale, False); n++; yaxis = XtCreateWidget("yaxis", atXYAxisWidgetClass, plotter, args, n); /* Attach the axes */ XtVaSetValues(plotter, XtNxAxis, xaxis, XtNyAxis, yaxis, NULL); /* Create the lines */ line1 = XtVaCreateWidget("line1", atXYLinePlotWidgetClass, plotter, XtNlegendName, "sys", /* XtNplotLineType, AtPlotSTEPS, */ /* XtNplotLineStyle, AtLineDOTTED, */ NULL); line2 = XtVaCreateWidget("line2", atXYLinePlotWidgetClass, plotter, XtNlegendName, "usr", /* XtNplotLineType, AtPlotSTEPS, */ /* XtNplotLineStyle, AtLineDASHED, */ NULL); line3 = XtVaCreateWidget("line3", atXYLinePlotWidgetClass, plotter, XtNlegendName, "sum", /* XtNplotLineType, AtPlotSTEPS, */ /* XtNplotLineStyle, AtLineSOLID, */ NULL); } /* * Attach the data to the lines */ void AttachData(n) int n; { AtXYLinePlotAttachData(line1, (XtPointer) &data[0].x, AtDouble, sizeof(curve), (XtPointer) &data[0].y1, AtDouble, sizeof(curve), 1, n); AtXYLinePlotAttachData(line2, (XtPointer) &data[0].x, AtDouble, sizeof(curve), (XtPointer) &data[0].y2, AtDouble, sizeof(curve), 1, n); AtXYLinePlotAttachData(line3, (XtPointer) &data[0].x, AtDouble, sizeof(curve), (XtPointer) &data[0].y3, AtDouble, sizeof(curve), 1, n); } /* * Extend the data */ int ExtendData() { int i, j, l; data[number].x = second; data[number].y1 = Random(33); data[number].y2 = Random(50); data[number].y3 = data[number].y1 + data[number].y2; ++second; if(++number == CNUM) { for(i = 0, j = DNUM, number = CNUM - DNUM; i < number; i++, j++) { data[i].x = data[j].x; data[i].y1 = data[j].y1; data[i].y2 = data[j].y2; data[i].y3 = data[j].y3; } xmin += XINC; xmax += XINC; XtVaSetValues(xaxis, XtNmin, &xmin, XtNmax, &xmax, NULL); AttachData(number); } else { AtXYLinePlotExtendData(line1, number); AtXYLinePlotExtendData(line2, number); AtXYLinePlotExtendData(line3, number); } return(1); } /* * The callbacks */ void quit_callback() { exit(0); } void start_callback() { if(timer) XtRemoveTimeOut(timer); number = 0; second = 0; AttachData(0); xmin = MIN; xmax = XMAX; ymin = MIN; ymax = YMAX; XtVaSetValues(xaxis, XtNmin, &xmin, XtNmax, &xmax, NULL); XtVaSetValues(yaxis, XtNmin, &ymin, XtNmax, &ymax, NULL); running = True; SetTimer(); XtSetSensitive(stopbutton, True); XtSetSensitive(contbutton, False); printf("\nStarted ...\n"); } void cont_callback() { if(number < CNUM) { running = True; XtSetSensitive(stopbutton, True); XtSetSensitive(contbutton, False); SetTimer(); printf("\nStarted at %d seconds\n", second); } else { running = False; XtSetSensitive(stopbutton, False); XtSetSensitive(contbutton, False); printf("\nAlready fininished. Press the button to restart\n"); } } void stop_callback() { running = False; if(number < CNUM) { XtSetSensitive(contbutton, True); XtSetSensitive(stopbutton, False); printf("\nStopped at %d seconds\n", second); } else { XtSetSensitive(stopbutton, False); XtSetSensitive(contbutton, False); printf("\nAlready fininished. Press the button to restart\n"); } } /* * Create form and buttons */ void MakeForm(parent) Widget parent; { form = XtVaCreateManagedWidget("form", formWidgetClass, parent, NULL); quitbutton = XtVaCreateManagedWidget("quit", commandWidgetClass, form, XtNlabel, "Quit", XtNleft, XtChainLeft, NULL); XtAddCallback(quitbutton, XtNcallback, quit_callback, NULL); startbutton = XtVaCreateManagedWidget("start", commandWidgetClass, form, XtNlabel, "Start", XtNfromHoriz, quitbutton, NULL); XtAddCallback(startbutton, XtNcallback, start_callback, NULL); stopbutton = XtVaCreateManagedWidget("stop", commandWidgetClass, form, XtNlabel, "Stop", XtNfromHoriz, startbutton, NULL); XtAddCallback(stopbutton, XtNcallback, stop_callback, NULL); XtSetSensitive(stopbutton, False); contbutton = XtVaCreateManagedWidget("cont", commandWidgetClass, form, XtNlabel, "Continue", XtNfromHoriz, stopbutton, NULL); XtAddCallback(contbutton, XtNcallback, cont_callback, NULL); XtSetSensitive(contbutton, False); } /* * The interval timer routine */ void SetTimer() { if(running) { ExtendData(); timer = XtAppAddTimeOut(appcontext, IVTM, SetTimer, NULL); } } /* * Main */ main(argc, argv) int argc; char **argv; { Widget appshell; appshell = XtAppInitialize(&appcontext, "Plotter", NULL, 0, &argc, argv, NULL, NULL, 0); MakeForm(appshell); MakePlotter(form); XtVaSetValues(plotter, XtNleft, XtChainLeft, XtNfromVert, quitbutton, NULL); XtVaSetValues(appshell, XtNminWidth, MINW, XtNminHeight, MINH, NULL); XtRealizeWidget(appshell); printf("Press the button to start\n"); XtAppMainLoop(appcontext); exit(0); }