[Glade-users] GtkEntry

[domfe at tiscali.it (Domenico Ferrari)]

Hi Ian,
cancel_open is a callback function called during the gtk_main loop.
In the openfile code you unref the builder hence you can't use the
builder instance anymore.

You could take two solutions:
1. move g_object_unref (G_OBJECT (builder)) after gtk_main
2. use the same approach on Open variable: declare entry1 outside
cancel_open and get the "FileName" object before g_object_unref
(G_OBJECT (builder))

When the callback on_filechooserwidget2_confirm_overwrite get fired the object
GtkFileChooser is valid and is automatically passed to the function.

Hope you will have your program running soon.
Bye



2014-06-17 1:53 GMT+02:00 Ian Chapman <ichapman at videotron.ca>:
> Hi Dome,
>     Thanks for all your help getting me going with Glade.  (3.14.2 by the
> way)  I have attached the file, just extract to a directory and run make
> then ./main then File/Open and hit the cancel button that's modified to work
> on the problem.  The code is in open.c and open.glade so you will be able to
> see all the errors that I have made.  What I find odd is code in line 42 of
> open is able to get the file's name without any reference to builder.  I
> have much to learn.  Thanks Ian.
>
>
> On 06/16/2014 03:49 AM, Domenico Ferrari wrote:
> > Hi Ian.
> > Please post the entire code...
> > You don't need the reference to the build when you have the object.
> > The builder is used for loading and presenting the dialog and is
> > needed to get the object with gtk_builder_get_object.
> >
> > Cheers.
> > Dome
> >
> >
> > 2014-06-13 21:15 GMT+02:00 Ian Chapman <ichapman at videotron.ca>:
> > > Hi and thanks Dome,
> > > I have
> > > void
> > > cancel_open () {
> > >      printf("\n Cancel button clicked. \n");
> > >
> > > GtkWidget *entry1;
> > > entry1 = GTK_WIDGET(gtk_builder_get_object(builder, "FileName"));
> > > gtk_entry_set_text(GTK_ENTRY(entry1), "Hello Ian");
> > >
> > > //        gtk_main_quit();
> > >      return;  }
> > > Where FileName is what I called the GtkEntry in Glade 3.14.2.  It
> > > compiles
> > > without error using FileName or entry1 in its place, links too but when I
> > > run I get
> > >   Cancel button clicked.
> > >
> > > (main:24755): Gtk-CRITICAL **: gtk_builder_get_object: assertion
> > > `GTK_IS_BUILDER (builder)' failed
> > >
> > > (main:24755): Gtk-CRITICAL **: gtk_entry_set_text: assertion
> > > `GTK_IS_ENTRY
> > > (entry)' failed
> > >
> > >          but the program does not crash in fact the rest of it is still
> > > running.  Another thing that strikes me as odd
> > >
> > >      gchar *cName_pt = NULL;
> > >      cName_pt = gtk_file_chooser_get_uri(GTK_FILE_CHOOSER(fs));
> > >      printf("\n cName_pt =  %s .\n", cName_pt);
> > >
> > >          because I can get the selected file without any reference to
> > > builder?  Any suggestions greatly appreciated.  Ian.
> > >
> > >
> > > On 06/11/2014 04:00 AM, Domenico Ferrari wrote:
> > > > Hi Ian.
> > > > Some hints...
> > > >
> > > > To get the entry object from GtkBuilder
> > > > GtkWidget *entry1=GTK_WIDGET(gtk_builder_get_object(builder, "entry1"));
> > > >
> > > > set the text
> > > > gtk_entry_set_text(GTK_ENTRY(entry1), "some text");
> > > >
> > > > and then get the text
> > > > text = gtk_entry_get_text( GTK_ENTRY(entry1));
> > > >
> > > > see the manual at
> > > >
> > > >
> > > > https://developer.gnome.org/gtk3/stable/GtkBuilder.html#gtk-builder-get-object
> > > >
> > > > have a nice day,
> > > > Dome
> > > >
> > > >
> > > > 2014-06-11 1:26 GMT+02:00 Ian Chapman <ichapman at videotron.ca>:
> > > > > Thanks Dome,
> > > > >       This code you sent me compiled so that's a step forward.  As I
> > > > > understand it "myEntry=gtk_entry_new(); " creates a new widget.  Going
> > > > > back
> > > > > to my original post, "I have In glade 3.14.2 I have window with a
> > > > > container
> > > > > box and in one of the compartments of the box I have Text Entry that
> > > > > shows
> > > > > in the inspector as GtkEntry (FileName)". I'm not able to connect what
> > > > > you
> > > > > have to what I have in glade.  I can connect and service signals from
> > > > > glade
> > > > > and now I want to initiate a action on GtkEntry(FileName) so as to read
> > > > > and
> > > > > write into the test field.  Please help Ian.
> > > > > PS
> > > > > I'm using old glade2 tutorials and the manual
> > > > > https://developer.gnome.org/gtk3/stable/GtkEntry.html which is rater
> > > > > terse.
> > > > > I need to find more on macros.
> > > > >
> > > > >
> > > > > On 06/10/2014 05:22 AM, Domenico Ferrari wrote:
> > > > > > You should use GTK_ENTRY instead of a direct cast because GTK_ENTRY
> > > > > > does type checking.
> > > > > >
> > > > > > GtkWidget *myEntry;
> > > > > > const char* text ;
> > > > > >
> > > > > > myEntry=gtk_entry_new();
> > > > > >
> > > > > > ...
> > > > > >
> > > > > > text = gtk_entry_get_text( GTK_ENTRY(myEntry));
> > > > > >
> > > > > >
> > > > > > Cheers,
> > > > > > Dome
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