Re: GtkTextView / GtkTextBuffer and g_signal_connect

[Olivier Sessink <olivier lx student wau nl>]

On Mon, 19 Aug 2002 19:11:12 -0700 "Joe" <joeja mindspring com> wrote:

> Hello,
>     I am not on this list and I have a few questions.  I am attempting 
> to develop a simple editor using the GtkTextView / GtkTextBuffer.
>
>     1) I am not sure this is a bug but here goes. I have created a 
> composit textwidget called GXTEXT.  The buffer is a text buffer and the 
> textarea is the textview.  I add the two signals below:    
>
>     g_signal_connect(GXTEXT(maintext)->buffer, "changed",
>                         (GtkSignalFunc)lineposition, label);
>
>     // this signal fails to pass the label but the previous one does ?
>     g_signal_connect(GXTEXT(maintext)->textarea, "move_cursor",
>                         (GtkSignalFunc)textlineposition, label);
>
>     The function prototypes are below:
>
>         static void lineposition (GtkTextBuffer *, GtkWidget *);
>         static void textlineposition (GtkWidget *, GtkWidget *);

read the f)(&^%$ manual
according to the reference guide the prototype for move-cursor is:
"move-cursor"
            void        user_function      (GtkTextView *textview,
                                            GtkMovementStep arg1,
                                            gint arg2,
                                            gboolean arg3,
                                            gpointer user_data);

>     2) Do I need to do something special to get scrolling to work?  I 
> get scroll bars in the scrolled window, but when I am typing and I hit 
> carriage return or get out of the viewport I have to manually move the 
> window.  Is this a bug?

set the scrolling of the scrolwin to auto

>     3) How do I select all the text in the textbuffer?  I know how to 
> get the textbounds, but how would I implement a 'select all' menu type 
> item?  Is there a special tag I should use or something?

just set the insert and selection markers to the beginning and the end of
the buffer

>     4) Is there an easy way to do syntax highlightening?

depends on what you want, about 1100 lines of code needed in bluefish

regards,
        Olivier
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