[Glade-users] GtkEntry

[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
>>>>>> _______________________________________________
>>>>>> Glade-users maillist  -  Glade-users at lists.ximian.com
>>>>>> http://lists.ximian.com/mailman/listinfo/glade-users
>>>>>>
>