[Glade-users] Loading widgets from XML file using libglade

[ajwood at theiet.org (Andrew Wood)]

Ah.  The rightpanevbox is inside the right portion of an HPane. I want 
the left side of the HPane to stay the same (declared in code) but the 
contents of the right side to change (and be loaded from Glade).


The page1.glade file is as follows. I dont actually want that 'window1' 
but I cant seem to find a way of setting the top level as just a vbox.

<?xml version="1.0"?>
<glade-interface>
 <!-- interface-requires gtk+ 2.16 -->
 <!-- interface-naming-policy project-wide -->
 <widget class="GtkWindow" id="window1">
   <child>
     <widget class="GtkVBox" id="mainvbox">
       <property name="visible">True</property>
       <property name="orientation">vertical</property>
       <child>
         <widget class="GtkLabel" id="label1">
           <property name="visible">True</property>
           <property name="label" translatable="yes">PAGE1</property>
         </widget>
         <packing>
           <property name="position">0</property>
         </packing>
       </child>
     </widget>
   </child>
 </widget>
</glade-interface>



David L?pez Luengo wrote:
> The problem comes because your rightpanevbox widget is already inside 
> another widget. Are you sure that in the mainvbox file definition, 
> rightpanevbox is the top widget? If you post the xml would help a lot. 
> It seems to be an easy-to-solve problem :-)
>
> Good luck!
>
>
> -- 
> David
>
>
> 2009/12/16 Andrew Wood <ajwood at theiet.org <mailto:ajwood at theiet.org>>
>
>     Im having problems getting libglade to load widgets from an XML file.
>     My aim is to have a GtkVBox in a window - the window is made in
>     code not
>     Glade, and the contents of the vbox will be loaded from Glade
>     files such
>     that the contents of the vbox can change as the app runs.
>
>     To test it out I created 2 Glade XML files page1.glade and 
> page2.glade
>     each have the following hierarchy:  GtkWindow->GtkVBox->GtkLabel
>
>     The label contains the text "Page1" or "Page2" accordingly. I want to
>     load the GtkVBox from either file and use it to 'replace' a manually
>     created vbox which is in code.
>
>     In the code which is just a short 'main' file Ive declared the
>     following:
>
>     GladeXML* page1xml;
>     GladeXML* page2xml;
>
>     GtkWidget* mainwindow;
>     GtkWidget* rightpanescrollview;
>     GtkWidget* rightpanevbox;
>
>     page1xml=glade_xml_new("./page1.glade",NULL,NULL);
>     rightpanevbox= glade_xml_get_widget(page1xml,"mainvbox");
>
>     
> gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(rightpanescrollview),rightpanevbox); 
>
>
>     The rightpanevbox is then put into the window.
>
>     But when the app runs the label from Glade doesnt appear and the
>     following is printed on the console:
>
>     (a.out:3894): Gtk-CRITICAL **: gtk_scrolled_window_add_with_viewport:
>     assertion `child->parent == NULL' failed
>     I tried decalring in code a GtkWindow and loading the top-level 
> window
>     widget from the XML file but again I got an error similar but 
> slightly
>     different suggesting that no widgets are actually being found in
>     the file.
>
>     The file itself is found because it throws up an error if I change 
> the
>     filename in the call to  glade_xml_new but it seemingly cant find
>     anything in that file.
>
>     Any suggestions? I can post the entire main code file if it would 
> help
>     its not very long.
>
>     Thanks
>     Andrew
>
>     _______________________________________________
>     Glade-users maillist  -  Glade-users at lists.ximian.com
>     <mailto:Glade-users at lists.ximian.com>
>     http://lists.ximian.com/mailman/listinfo/glade-users
>
>
>
>
> -- 
> David
>
> ______________________________________________________________________
> This email has been scanned by the MessageLabs Email Security System.
> For more information please visit http://www.messagelabs.com/email
> ______________________________________________________________________


David L?pez Luengo wrote:
> The problem comes because your rightpanevbox widget is already inside 
> another widget. Are you sure that in the mainvbox file definition, 
> rightpanevbox is the top widget? If you post the xml would help a lot. 
> It seems to be an easy-to-solve problem :-)
>
> Good luck!
>
>
> --
> David
>
>
> 2009/12/16 Andrew Wood <ajwood at theiet.org <mailto:ajwood at theiet.org>>
>
>     Im having problems getting libglade to load widgets from an XML file.
>     My aim is to have a GtkVBox in a window - the window is made in
>     code not
>     Glade, and the contents of the vbox will be loaded from Glade
>     files such
>     that the contents of the vbox can change as the app runs.
>
>     To test it out I created 2 Glade XML files page1.glade and page2.glade
>     each have the following hierarchy:  GtkWindow->GtkVBox->GtkLabel
>
>     The label contains the text "Page1" or "Page2" accordingly. I want to
>     load the GtkVBox from either file and use it to 'replace' a manually
>     created vbox which is in code.
>
>     In the code which is just a short 'main' file Ive declared the
>     following:
>
>     GladeXML* page1xml;
>     GladeXML* page2xml;
>
>     GtkWidget* mainwindow;
>     GtkWidget* rightpanescrollview;
>     GtkWidget* rightpanevbox;
>
>     page1xml=glade_xml_new("./page1.glade",NULL,NULL);
>     rightpanevbox= glade_xml_get_widget(page1xml,"mainvbox");
>
>     gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(rightpanescrollview),rightpanevbox);
>
>     The rightpanevbox is then put into the window.
>
>     But when the app runs the label from Glade doesnt appear and the
>     following is printed on the console:
>
>     (a.out:3894): Gtk-CRITICAL **: gtk_scrolled_window_add_with_viewport:
>     assertion `child->parent == NULL' failed
>     I tried decalring in code a GtkWindow and loading the top-level window
>     widget from the XML file but again I got an error similar but slightly
>     different suggesting that no widgets are actually being found in
>     the file.
>
>     The file itself is found because it throws up an error if I change the
>     filename in the call to  glade_xml_new but it seemingly cant find
>     anything in that file.
>
>     Any suggestions? I can post the entire main code file if it would help
>     its not very long.
>
>     Thanks
>     Andrew
>
>     _______________________________________________
>     Glade-users maillist  -  Glade-users at lists.ximian.com
>     <mailto:Glade-users at lists.ximian.com>
>     http://lists.ximian.com/mailman/listinfo/glade-users
>
>
>
>
> -- 
> David
>
> ______________________________________________________________________
> This email has been scanned by the MessageLabs Email Security System.
> For more information please visit http://www.messagelabs.com/email
> ______________________________________________________________________