Help with Gnome applet developement

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Help with Gnome applet developement

 
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Nov 15th, 2008
Hi all.
I am attempting my first Gnome applet creation and I found a great
tutorial at http://projects.gnome.org/ORBit2/appletstutorial.html .
Unfortunately, I am stuck where the example goes to load an image. I can
compile the applet and make it run but when I add it to the Gnome bar it
doesn't show anything. I have some printf's in the code and those work on
the console.
Here's the code I am working on:

C Syntax (Toggle Plain Text) 
  1. #include <string.h>
  2. #include <stdio.h>
  3.  
  4. #include <panel-applet.h>
  5. #include <gtk/gtklabel.h>
  6. #include <gtk/gtkimage.h>
  7. #include <gtk/gtkbox.h>
  8.  
  9. static gboolean
  10.   on_button_press (GtkWidget      *event_box,
  11.                          GdkEventButton *event,
  12.                          gpointer        data)
  13.   {
  14.         static int window_shown;
  15.         static GtkWidget *window, *box, *image, *label;
  16.         /* Don't react to anything other than the left mouse button;
  17.            return FALSE so the event is passed to the default handler */
  18.         if (event->button != 1)
  19.                 return FALSE;
  20.  
  21.         if (!window_shown) {
  22.                 window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  23.                 box = GTK_BOX (gtk_vbox_new (TRUE, 12));
  24.                 gtk_container_add (GTK_CONTAINER (window), box);
  25.  
  26.                 image = GTK_IMAGE (gtk_image_new_from_file
  27. ("/usr/share/pixmaps/camorama.png"));
  28.                 gtk_box_pack_start (GTK_BOX (box), image, TRUE, TRUE, 12);
  29.  
  30.                 label = gtk_label_new ("Hello World");
  31.                 gtk_box_pack_start (GTK_BOX (box), label, TRUE, TRUE, 12);
  32.  
  33.                 gtk_widget_show_all (window);
  34.         }
  35.         else
  36.                 gtk_widget_hide (GTK_WIDGET (window));
  37.  
  38.         window_shown = !window_shown;
  39.         return TRUE;
  40.   }
  41.  
  42. static gboolean
  43. myexample_applet_fill (PanelApplet *applet,
  44.    const gchar *iid,
  45.    gpointer data)
  46.  
  47. {
  48.         GtkWidget *image, *event_box;
  49.         printf("I just instantiated the image\n");
  50.         if (strcmp (iid, "OAFIID:ExampleApplet") != 0)
  51.                 return FALSE;
  52.  
  53.         image = gtk_image_new_from_file ("/usr/share/pixmaps/camorama.png");
  54. printf("I just loaded the image\n");
  55.         event_box = gtk_event_box_new ();
  56.         gtk_container_add (GTK_CONTAINER (event_box), image);
  57.         printf("I just created the EB container\n");
  58.         gtk_widget_show_all (GTK_WIDGET (applet));
  59.         printf("I should be showing stuff\n");
  60.  
  61.         g_signal_connect (G_OBJECT (event_box),
  62.                   "button_press_event",
  63.                   G_CALLBACK (on_button_press),
  64.                   image);
  65.  
  66.         return TRUE;
  67. }
  68.  
  69.  
  70. PANEL_APPLET_BONOBO_FACTORY ("OAFIID:ExampleApplet_Factory",
  71.                              PANEL_TYPE_APPLET,
  72.                              "The Hello World Applet",
  73.                              "0",
  74.                              myexample_applet_fill,
  75.                              NULL);

What am I doing wrong?
Thanks
OttoBit.org - IT News & Forums
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