[Glade-users] how can I display an entire text file in Gtktext widget?

[Alexey Kurochkin]

On Tue, 2008-07-08 at 13:20 +0530, vishudh ps wrote:
> The second argument is "gpointer  user_data". What change should I
> make to the second argument to get the pointer of textview, and
> where(only in callback.c, or anywere else needed)?

There are three options.
1. You can type your textview widget name in User data field for
"clicked" signal of your button in glade. Then your user_data pointer
will be pointer to the button, and the first argument will be pointer to
the textview. It is ugly and not very useful, cause most likely you will
need to access more than just textview widget in your callback.
2. You can use glade_xml_signal_connect_data() for each callback instead
of just using glade_xml_signal_autoconnect(), and set your user_data to
whatever you please (usually a structure containing relevant pointers).
It is somewhat tedious, but it is the proper way. I use it for big
projects.
3. Make everything you need to access global. It is perfectly fine for a
small app. Just do not forget to initialize your globals with
glade_xml_get_widget(). If you do not do this your globals are pointing
nowhere which was likely your problem in the initial case.

> 
> On 7/8/08, Lukasz Gromotowicz <gromot at gmail.com> wrote:
>         Hi,
>         first of all read here:
>         http://library.gnome.org/devel/gtk/2.6/GtkText.html
>         It says the GtkText is deprecated... instead it use
>         GtkTextView. Then having a pointer to GtkTextView use
>         gtk_text_view_get_buffer to get its buffer. You must load
>         whatever you want to display to this buffer.
>          
>         When you define the callback function you can add a pointer to
>         any structure / object you want (last parameter of the
>         callback). Pass a pointer to your textView.
>          
>         Regards,
>         LUK
>         
>         
>          
>         2008/7/7 vishudh ps <vishudh at gmail.com>:
>                 I am new to glade and trying to create an editor in
>                 glade.So, I want to change the content of a Gtktext
>                 widget with a text file when a button is clicked.Both
>                 the text and button are children of diffrent windows.
>                 The problem is, I cannot access the text widget from
>                 the callback function of the button.what is the
>                 solution to get the text widget on "clicked" callback
>                 of the button? I tried with global variables, But make
>                 returns error: 
>                 "gtk_text_insert: assertion 'GTK_IS_TEXT(text)'
>                 failed". 
>                 Please help me to insert text in to the text widget.
>                 Thanks in advance.
>                 
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