Re: Disabling menu And Modal dialog boxes!

[APR Trainees <apr trainees gmail com>]

On Wed, 23 Mar 2005 11:16:33 +0100, Iago Rubio <iago rubio hispalinux es> wrote:
> On Wed, 2005-03-23 at 14:34 +0530, APR Trainees wrote:
> > Hello,
> >
> > We're making an application using gnome 2.0 that adds an icon on the
> > statusbar.We've added a context menu to display the menu when the icon
> > is clicked using the right mouse button.
> > tride to do the follwoing in glade too but couldnt!
> >
> > 2 QUERIES
> > 1.   Now we need to disable(i.e. gray the menuitem) a particular menu item
> >       in this menu when a certain condition occurs.
> >       We thought probably the following function wud be useful:
> >
> >      applet_widget_callback_set_sensitive defined in applet-widget.h but
> >      this is for gnome 1.0
> >      and when we include the .h in our application,a zillion errors are
> >      generated!!!!!!!!
> >
> >      Then we tried applet_object_callback_set_sensitive which is
> > defined for 2.0
> >      But again we aren't able to compile it.Says the function used is
> >      UNREFERENCED.Probably an extra header is required.
> >
> > Could some1 pls help us with this ..........suggest how to remove the
> > error....orr disable the context menu's menuitem.
>
> Save the menu item in any sort of structure, or set it as data for any
> accesible object and use gtk_widget_set_sensitive(menu_item, FALSE)


hi again,

Thanx for the help...
as u mentioned here id tried using this earlier too.Irwin had
suggested set_sensitive also.
The problem is when i try to use these it says that the 1st argument
if from an incompatible pointer type.
now the function is:-
gtk_widget_set_sensitive(*GTKWIDGET ,FALSE)
so if i pass the name of the menu or the verb associated wth the
context menu to this function it gives an error!
i'm pasting my code here so that u could get a better idea!
as u said about using a structure or data etc for referencing,i cudnt
quite implement it!
the code:-

#include <panel-applet.h>
#include <gtk/gtklabel.h>
#include <gnome.h>
#include <bonobo.h>


GtkWidget* create_dialog (int type, char * message);
static const BonoboUIVerb myexample_menu_verbs [];

static const char Context_menu_un_xml [] =
  "<popup name=\"button3\">\n"
  "   <menuitem name=\"mnuGet\" "
  "             verb=\"pepGet\" "
  "           _label=\"_Get Status\"\n"
  "          pixtype=' "
  "          pixname=' />\n"
  "   <menuitem name=\"mnuStatus\" "
  "             verb=\"pepStatus\" "
  "           _label=\"_Unknown\"\n"
  "          pixtype=' "
  "          sensitive=False "
  "          pixname=' />\n"
  "   <menuitem name=\"mnuAbout\" "
  "             verb=\"pepAbout\" "
  "           _label=\"_About\"\n"
  "          pixtype=' "
  "          pixname=' />\n"
  "</popup>\n";


Now in another function i try to use:

gtk_widget_set_sensitive("pepStatus",FALSE);


//Function called to make dialog and set it modal
//modal not yet working!

GtkWidget* create_dialog (int type, char * message)
{
GtkWidget *dialog;
GtkWidget *dialog_vbox;
GtkWidget *hbox;
GtkWidget *dialog_action_area;
GtkWidget *okbutton;
GtkWidget *image;
GtkWidget *label1;
GtkWidget *label2;
GtkWidget *label3;
char about_data[256];
int retVal;

dialog = gtk_dialog_new ();
gtk_window_set_title (GTK_WINDOW (dialog), _("About"));
gtk_window_set_modal (GTK_WINDOW (dialog), 1);
   
       //gtk_window_set_modal(GTK_WINDOW (dialog),TRUE);       

gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);

dialog_vbox = GTK_DIALOG (dialog)->vbox;
gtk_widget_show (dialog_vbox);
gnome_dialog_run_and_close (GNOME_DIALOG (dialog));

hbox = gtk_hbox_new (TRUE, 0);
gtk_widget_show (hbox);
gtk_box_pack_start (GTK_BOX (dialog_vbox), hbox, TRUE, TRUE, 0);

image = gtk_image_new_from_file ("icon.ico");
gtk_widget_show (image);
gtk_box_pack_start (GTK_BOX (hbox), image, TRUE, TRUE, 0);

   sprintf(about_data,"about");
   label1 = gtk_label_new (_(about_data));
   gtk_widget_show (label1);
   gtk_box_pack_start (GTK_BOX (dialog_vbox), label1, FALSE, FALSE, 0);
   gtk_label_set_justify (GTK_LABEL (label1), GTK_JUSTIFY_LEFT);
    
dialog_action_area = GTK_DIALOG (dialog)->action_area;
gtk_widget_show (dialog_action_area);
gtk_button_box_set_layout (GTK_BUTTON_BOX (dialog_action_area),
GTK_BUTTONBOX_SPREAD);

okbutton = gtk_button_new_from_stock ("gtk-ok");
gtk_widget_show (okbutton);
gtk_dialog_add_action_widget (GTK_DIALOG (dialog), okbutton, GTK_RESPONSE_OK);
GTK_WIDGET_SET_FLAGS (okbutton, GTK_CAN_DEFAULT);


       g_signal_connect_data ((gpointer) okbutton, "clicked",
                        G_CALLBACK (gtk_widget_destroy),
                        GTK_OBJECT (dialog),
                        NULL, G_CONNECT_AFTER | G_CONNECT_SWAPPED);

g_object_set_data (G_OBJECT(dialog), "dialog", dialog);
g_object_set_data (G_OBJECT(dialog), "dialog_vbox", dialog_vbox);
       g_object_set_data (G_OBJECT(dialog), "hbox", hbox);
g_object_set_data (G_OBJECT(dialog), "image", image);

     g_object_set_data (G_OBJECT(dialog), "label1", label1);


g_object_set_data (G_OBJECT(dialog), "dialog_action_area", dialog_action_area);
g_object_set_data (G_OBJECT(dialog), "okbutton", okbutton);
       
       return dialog;
}

static const BonoboUIVerb myexample_menu_verbs [] = 
{
       BONOBO_UI_VERB ("pepGet", get_request),
       BONOBO_UI_VERB ("pepAbout", display_about),
       BONOBO_UI_VERB ("pepStatus", set_request),
       BONOBO_UI_VERB_END
};

static gboolean
myexample_applet_fill (PanelApplet *applet,
  const gchar *iid,
  gpointer data)
{
GtkWidget *event_box;
GtkWidget *image;

if (strcmp (iid, "OAFIID:ExampleApplet") != 0)
return FALSE;

image = gtk_image_new_from_file("icon.ico");
//("/usr/share/pixmaps/InmarsatIcon.png");
event_box = gtk_event_box_new();

gtk_container_add (GTK_CONTAINER (event_box), image);

gtk_container_add (GTK_CONTAINER (applet), event_box);

gtk_widget_show_all (GTK_WIDGET (applet));


panel_applet_setup_menu (PANEL_APPLET (applet),
                        Context_menu_un_xml,
                        myexample_menu_verbs,
                        NULL);


return TRUE;
}

PANEL_APPLET_BONOBO_FACTORY ("OAFIID:ExampleApplet_Factory",
                            PANEL_TYPE_APPLET,
                            "The Hello World Applet",
                            "0",
                            myexample_applet_fill,
                            NULL);