Added some explanations about the 'failed to connect graphics to gui' error message

git-svn-id: https://navit.svn.sourceforge.net/svnroot/navit/trunk@443 ffa7fe5e-494d-0410-b361-a75ebd5db220

diff --git a/navit/src/navit.c b/navit/src/navit.c
index 58ee426..e59a3c0 100644 (file)
--- a/navit/src/navit.c
+++ b/navit/src/navit.c
@@ -384,8 +384,6 @@ navit_set_destination(struct navit *this_, struct coord *c, char *description)
        navit_append_coord(this_, "destination.txt", c, "former_destination", description, this_->destinations, NULL, navit_set_destination_from_destination);
        if (this_->route) {
                 route_set_destination(this_->route, c);
-               if (this_->navigation) 
-                       navigation_update(this_->navigation, this_->route);
                 navit_draw(this_);
         }
 }
@@ -780,6 +778,20 @@ navit_init(struct navit *this_)
 
        if (!this_->gui || !this_->gra || gui_set_graphics(this_->gui, this_->gra)) {
                g_warning("failed to connect graphics to gui\n");
+               g_warning("It can be one of the following : \n");
+               g_warning("- You choosed a gui which doesn't exist or doesn't work");
+               g_warning("    -> Check the <plugin path> section of your navit.xml");
+               g_warning("- You choosed a graphics which doesn't exist or doesn't work");
+               g_warning("    -> Check the <plugin path> section of your navit.xml");
+               g_warning("- The graphics driver is not compatible with the gui");
+               g_warning("    -> Currently you can use :");
+               g_warning("             gtk_drawing_area graphic driver with gtk");
+               g_warning("             opengl graphic driver with sdl");
+               g_warning("             null graphic driver with both (but do you want that? :) )");
+               g_warning("");
+               g_warning(" The most common reason is that something went wrong when you compiled navit, and either :");
+               g_warning(" - the gui or graphics driver you want to use wasn't compiled, maybe because of a missing dependency");
+               g_warning(" - make install didn't install the library where it should have.");
                navit_destroy(this_);
                return;
        }