[Gpredict-svn] SF.net SVN: gpredict:[898] trunk

[<aa...@us...>]

Revision: 898
          http://gpredict.svn.sourceforge.net/gpredict/?rev=898&view=rev
Author:   aa1vs
Date:     2011-09-19 12:00:59 +0000 (Mon, 19 Sep 2011)
Log Message:
-----------
Speed up tle-update by updating the gui less frequently.

Modified Paths:
--------------
    trunk/ChangeLog
    trunk/src/tle-update.c

Modified: trunk/ChangeLog
===================================================================
--- trunk/ChangeLog	2011-09-18 14:09:26 UTC (rev 897)
+++ trunk/ChangeLog	2011-09-19 12:00:59 UTC (rev 898)
@@ -1,6 +1,13 @@
 2011-09-18 Charles Suprin <hamaa1vs at gmail.com>
 
     * ChangeLog
+    * src/tle-update.c
+    Speed up tle-update by updating the gui less frequently.
+
+
+2011-09-18 Charles Suprin <hamaa1vs at gmail.com>
+
+    * ChangeLog
     * src/qth-data.c
     Remove error message if latitude, longitude, or altitude is zero.
 

Modified: trunk/src/tle-update.c
===================================================================
--- trunk/src/tle-update.c	2011-09-18 14:09:26 UTC (rev 897)
+++ trunk/src/tle-update.c	2011-09-19 12:00:59 UTC (rev 898)
@@ -326,18 +326,28 @@
 
                         }
 
-                        /* Force the drawing queue to be processed otherwise there will
-                            not be any visual feedback, ie. frozen GUI
-                            - see Gtk+ FAQ http://www.gtk.org/faq/#AEN602
-                        */
-                        while (g_main_context_iteration (NULL, FALSE));
-
-                        /* give user a chance to follow progress */
-                        g_usleep (G_USEC_PER_SEC / 1000);
+                        /* update the gui only every so often to speed up the process */
+                        /* 47 was selected empirically to balance the update looking smooth but not take too much time. */
+                        /* it also tumbles all digits in the numbers so that there is no obvious pattern. */
+                        /* on a developer machine this improved an update from 5 minutes to under 20 seconds. */
+                        if (total%47 == 0) {
+                            /* Force the drawing queue to be processed otherwise there will
+                               not be any visual feedback, ie. frozen GUI
+                               - see Gtk+ FAQ http://www.gtk.org/faq/#AEN602
+                            */
+                            while (g_main_context_iteration (NULL, FALSE));
+                        
+                            /* give user a chance to follow progress */
+                            g_usleep (G_USEC_PER_SEC / 1000);
+                        }
                     }
                 }
             }
+            
+            /* force gui update */
+            while (g_main_context_iteration (NULL, FALSE));
 
+
             /* close directory handle */
             g_dir_close (loc_dir);
             

This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.