*** empty log message ***

1 files changed, 196 insertions, 0 deletions

diff --git a/xgpsspeed.c b/xgpsspeed.c
new file mode 100644
index 00000000..8164d1a9
--- /dev/null
+++ b/xgpsspeed.c
@@ -0,0 +1,196 @@
+/* GPS speedometer as a wrapper around an Athena widget Tachometer
+ * - Derrick J Brashear <shadow@dementia.org>
+ * Tachometer widget from Kerberometer (xklife)
+ */
+#include "config.h"
+#include "xgpsspeed.h"
+#include "xgpsspeed.icon"
+#include "nmea.h"
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#define BUFSIZE          4096
+#define DEFAULTPORT "5678"
+char latd, lond;
+double latitude, longitude;
+int device_type;
+int debug = 0;
+
+#if defined(ultrix) || defined(SOLARIS) 
+extern double rint();
+#endif
+
+Widget toplevel, base;
+Widget tacho, label, title;
+
+static XrmOptionDescRec options[] = {
+{"-rv",		"*reverseVideo",	XrmoptionNoArg,		"TRUE"},
+{"-nc",         "*needleColor",         XrmoptionSepArg,        NULL},
+{"-needlecolor","*needleColor",         XrmoptionSepArg,        NULL},
+};
+
+/*
+ * Definition of the Application resources structure.
+ */
+
+typedef struct _XGpsResources {
+} XGpsResources;
+
+XGpsResources resources;
+
+#define Offset(field) (XtOffset(XGpsResources *, field))
+
+static XtResource my_resources[] = {
+};
+
+String fallback_resources[] =
+{
+};
+
+static void open_input(XtAppContext app);
+
+#undef Offset
+
+int errexit(char *s)
+{
+    perror(s);
+    //serial_close();
+    exit(1);
+}
+
+int
+main(int argc, char **argv)
+{
+    Arg             args[10];
+    XtAppContext app;
+    Cardinal        i;
+    char *cp;
+    int ret;
+
+
+    toplevel = XtVaAppInitialize(&app, "XGpsSpeed", options, XtNumber(options),
+			    &argc, argv, fallback_resources, NULL);
+
+    XtGetApplicationResources( toplevel, (caddr_t) &resources, 
+			      my_resources, XtNumber(my_resources),
+			      NULL, (Cardinal) 0);
+
+   /**** Shell Widget ****/
+    i = 0;
+    XtSetArg(args[0], XtNiconPixmap,
+	     XCreateBitmapFromData(XtDisplay(toplevel),
+				   XtScreen(toplevel)->root, xgps_bits,
+				   xgps_width, xgps_height)); i++;
+    XtSetValues(toplevel, args, i);
+    
+    /**** Form widget ****/
+    base = XtCreateManagedWidget("pane", panedWidgetClass, toplevel, NULL, 0);
+
+    /**** Label widget (Title) ****/
+    i = 0;
+    XtSetArg(args[i], XtNlabel, "GPS Speedometer"); i++;
+    label = XtCreateManagedWidget("title", labelWidgetClass,
+				  base, args, i);
+
+    /**** Label widget ****/
+    i = 0;
+    XtSetArg(args[i], XtNlabel, "Miles per Hour"); i++;
+    label = XtCreateManagedWidget("name", labelWidgetClass,
+				  base, args, i);
+    
+    /**** Tachometer widget ****/
+    tacho = XtCreateManagedWidget("meter",
+				  tachometerWidgetClass,
+				  base, NULL, 0);
+    
+    XtRealizeWidget(toplevel);
+    open_input(app);
+    
+    XtAppMainLoop(app);
+}
+
+
+
+Usage()
+{
+    fprintf(stderr, 
+	    "xgpsspeed <Toolkit Options> [-rv] [-nc needlecolor]\n");
+    exit(-1);
+}
+
+
+#if 0
+#if defined(i386) || defined(__hpux)
+#define rint (int)
+#endif	
+#endif
+
+void update_display()
+{
+  int new = rint(gNMEAdata.speed * 6076.12 / 5280);
+  //  fprintf(stderr, "gNMEAspeed %f scaled %f %d\n", gNMEAdata.speed, rint(gNMEAdata.speed * 5208/6706.12), (int)rint(gNMEAdata.speed * 5208/6706.12));
+  if (new > 100)
+    new = 100;
+
+  TachometerSetValue(tacho, new);
+}
+
+static void handle_input(XtPointer client_data, int *source, XtInputId * id)
+{
+  double speed;
+  static unsigned char buf[BUFSIZE];  /* that is more than a sentence */
+  static int offset = 0;
+  int count;
+
+  ioctl(*source, FIONREAD, &count);   // this is BAD! Why can't I make the
+  // socket non blocking for read?
+
+  while (offset < BUFSIZE && count--) {
+    if (read(*source, buf + offset, 1) != 1)
+      return;
+
+    if (buf[offset] == '\n') {
+      if (buf[offset - 1] == '\r')
+	buf[offset - 1] = '\0';
+      handle_message(buf);
+      update_display();
+      offset = 0;
+      return;
+    }
+    offset++;
+  }
+}
+
+int my_serial_open()
+{
+    char *temp;
+    char *p;
+    char *port = DEFAULTPORT;
+    char *device_name="gps.mayko.com";
+    int one = 1;
+    int ttyfd;
+
+    temp = malloc(strlen(device_name) + 1);
+    strcpy(temp, device_name);
+
+    //temp now holds the HOSTNAME portion and port the port number.
+    ttyfd = connectTCP(temp, port);
+    free(temp);
+    port = 0;
+
+    setsockopt(ttyfd, SOL_SOCKET, SO_REUSEADDR, (char *) &one, sizeof(one));
+
+    if (write(ttyfd, "r\n", 2) != 2)
+      errexit("Can't write to socket");
+    return ttyfd;
+}
+
+static void open_input(XtAppContext app)
+{
+    int input = 0;
+    XtInputId input_id;
+
+    input = my_serial_open();
+
+    input_id = XtAppAddInput(app, input, (XtPointer) XtInputReadMask,
+                             handle_input, NULL);
+}