LinHES-timezone: add help option. add guess failure handling. add title

1 files changed, 96 insertions, 11 deletions

diff --git a/abs/core-testing/LinHES-timezone/linhes_timezone.c b/abs/core-testing/LinHES-timezone/linhes_timezone.c
index d295091..4ab4ab0 100644
--- a/abs/core-testing/LinHES-timezone/linhes_timezone.c
+++ b/abs/core-testing/LinHES-timezone/linhes_timezone.c
@@ -52,6 +52,11 @@ double acceleration = 0.01;
 char input_keys[200];
 
 int guessing_timezone = FALSE;
+time_t guess_timeout = 0;
+int guess_failed = FALSE;
+time_t guess_failed_timeout = 0;
+int show_information = FALSE;
+int info_displayed = FALSE;
 
 void select_place (int place)
 {
@@ -186,7 +191,7 @@ void draw_zone (
   }
 }
 
-void draw_string (int x, int y, char*s, unsigned long colour)
+void draw_string (int x, int y, const char*s, unsigned long colour)
 {
   XSetForeground (display, gc, BlackPixel (display, screen));
   for (int x_pos = x - 3; x_pos <= x + 3; x_pos++)
@@ -296,12 +301,39 @@ void redraw_map ()
   for (int zone = 0; zone < NUM_ZONES - 1; zone++)
     draw_zone (pixmap, zone, 0, 0);
   
-  if (guessing_timezone)
+  if (show_information)
+  {
+    info_displayed = TRUE;
+    char *s[4] = {"Left/Right: Change Offset",
+                  "Up/Down: Change Location",
+                  "Enter: Select Location",
+		  "Esc: Abort"};
+    int num = XtNumber(s);
+    for (int i = 0; i < num; i++)
+    {
+      int text_width = XTextWidth (font, s[i], strlen (s[i]));
+      draw_string (width/2 - text_width/2, 
+		   height/2 + (-2 + i) * (font->ascent + font->descent), 
+		   s[i], name_colour.pixel);
+    }
+  }
+  else if (guessing_timezone || (info_displayed = FALSE))
   {
     char *s = "Guessing Timezone";
     int text_width = XTextWidth (font, s, strlen (s));
     draw_string (width/2 - text_width/2, height/2, s, name_colour.pixel);
   }
+  else if (guess_failed)
+  {
+    char *s = "Unable to Guess Timezone";
+    char *s2 = "Please Select Timezone Manually";
+    int text_width = XTextWidth (font, s, strlen (s));
+    draw_string (width/2 - text_width/2, height/2, s, name_colour.pixel);
+    text_width = XTextWidth (font, s2, strlen (s2));
+    draw_string (width/2 - text_width/2, 
+                 height/2 + font->ascent + font->descent, 
+		 s2, name_colour.pixel);
+  }
   else
   {
     draw_zone (pixmap, selected_zone, 1, 1);
@@ -332,14 +364,28 @@ void redraw_map ()
       char zone_offset[100];
       sprintf (zone_offset, "UTC%s", zone_data[selected_zone].offset);
       draw_string (
-        ((width * 0.95 - XTextWidth (font, zone_offset, strlen (zone_offset))) +
+        ((width * 0.95 - XTextWidth (font, "UTC+88", strlen ("UTC+88"))) +
          ((width / 2) + radius / sqrt (2))) / 2, 
         ((lrint (height * 0.05) + font->ascent) +
          (height / 2 - radius / sqrt (2))) / 2, 
         zone_offset, name_colour.pixel);
     }
   }
-  
+
+  if (!guessing_timezone && !guess_failed)
+  {
+    const char *title = "Select Your Time Zone";
+    const char *help = "Help = i";
+
+    draw_string (width / 2 - XTextWidth (font, title, strlen (title)) / 2,
+        ((lrint (height * 0.05) + font->ascent) +
+         (height / 2 - radius / sqrt (2))) / 2, 
+	title, WhitePixel (display,screen));
+
+    draw_string (width * 0.05, height * 0.95 - font->descent - font->ascent, 
+		 help, name_colour.pixel);
+  }  
+
   XCopyArea (display, pixmap, window, gc, 0, 0, width, height, 0, 0);
 }
 
@@ -393,6 +439,10 @@ void handle_key (char key)
       select_place (nearest_z (selected_z));
       break;
             
+    case 'I':
+      show_information = !show_information;
+      break;
+
     case 'X':
       printf ("%s\n", zone_data[selected_zone].place_info[selected_place].zonename);
       exit (0);
@@ -434,7 +484,12 @@ void handle_event (XEvent *xevent)
           break;
 
 	case XK_Escape:
-	  handle_key('E');
+	  handle_key ('E');
+	  break;
+
+	case XK_I:
+	case XK_i:
+	  handle_key ('I');
 	  break;
       }
 
@@ -588,7 +643,12 @@ void *timezone_guess (void *unused)
   if (!guess_data)
   {
     fprintf (stderr, "error parsing web page for timezone guess\n");
-    guessing_timezone = FALSE;
+    if (guessing_timezone)
+    {
+      guessing_timezone = FALSE;
+      guess_failed = TRUE;
+      guess_failed_timeout = time (NULL) + 3;
+    }
     return NULL;
   }
 
@@ -648,7 +708,12 @@ void *timezone_guess (void *unused)
     if (zone == NUM_ZONES)
     {
       fprintf (stderr, "couldnt find zone %s\n", guess_zone);
-      default_zone ("");
+      if (guessing_timezone)
+      {
+	guessing_timezone = FALSE;
+        guess_failed = TRUE;
+        guess_failed_timeout = time (NULL) + 3;
+      }
     }
     else
     {
@@ -699,7 +764,12 @@ void *timezone_guess (void *unused)
   }
   else
   {
-    default_zone ("");
+    if (guessing_timezone)
+    {
+      guessing_timezone = FALSE;
+      guess_failed = TRUE;
+      guess_failed_timeout = time (NULL) + 3;
+    }
   }
   
   guessing_timezone = FALSE;
@@ -882,8 +952,9 @@ int main (int argc, char *argv[])
 
   // Load the font.
   
-  font = XLoadQueryFont (display, (width > 800) ? "-*-lucida-bold-r-*-*-34-*-*-*-*-*-*-*" : 
-                              "-*-lucida-bold-r-*-*-20-*-*-*-*-*-*-*");
+  font = XLoadQueryFont (display, (width > 800) ? 
+                         "-*-lucida-bold-r-*-*-34-*-*-*-*-*-*-*" : 
+                         "-*-lucida-bold-r-*-*-20-*-*-*-*-*-*-*");
   if (!font) 
     fprintf (stderr,"error loading font\n");
 
@@ -967,6 +1038,7 @@ int main (int argc, char *argv[])
   if (guessing_timezone)
   {
     pthread_create (&tid, NULL, timezone_guess, NULL);
+    guess_timeout = time (NULL) + 10;
     displayed_lat = M_PI/2;
     displayed_lon = 0;
   }
@@ -986,9 +1058,22 @@ int main (int argc, char *argv[])
     
   while (1)
   {
+    if (guessing_timezone && (time (NULL) > guess_timeout))
+    {
+      guessing_timezone = FALSE;
+      guess_failed_timeout = time (NULL) + 3;
+      guess_failed = TRUE;
+    }
+
     if ((displayed_lat != target_lat) || (displayed_lon != target_lon) || 
-        guessing_timezone)
+        guessing_timezone || guess_failed ||
+  	(info_displayed ^ show_information))
     {
+      if (guess_failed && (time (NULL) > guess_failed_timeout))
+      {
+        guess_failed = FALSE;
+      }
+
       next_view ();
       redraw_map ();
     }