Hi,
Le 10/06/2013 12:26, Thomas A. Moulton a écrit :
> On 06/09/2013 05:21 PM, Thomas A. Moulton wrote:
>> Ok here is a single file example of my code... it works the same way
>> it does in my larger project
>>
>> Any suggestions would be GREATLY appreciated!
>>
>> tom
>>
> What happens is when you enter enough lines of text to fill the window
> the scrolled window does not scroll up
> when the "eob" mark is not visible (eob=last line of text buffer)
The problem you have is that you insert the TextView in the
ScrolledWindow through a Viewport. This results in a widget hierarchy
like this:
...
+ GtkScrolledWindow
+ GtkViewport
+ GtkTextView
This means that the TextView doesn't get to control the ScrolledWinodw,
its the Viewport that does. So when you ask scroll_to_mark() the
ScrolledWindow won't get the request, and so won't scroll.
What you need it NOT to add a Viewport, so you get a hierarchy like this:
...
+ GtkScrolledWindow
+ GtkTextView
Like this, the thing that gets scrolled is the TextView, not a kind of
proxy. GtkViewport is only useful if you want to add a non-scrollable
widget (e.g. boxes, grids, etc) to a scrolled window: it acts as a proxy
that implements the scrolling. On the other hand, if the widget you
want to add IS scrollable (implement the GtkScrollable interface), it
must NOT be in a Viewport: if it does, it will expect scrolling requests
and alike, but never get them since its the Viewport that gets them.
In practice, just replace
gtk_scrolled_window_add_with_viewport(scroll, GTK_WIDGET(text));
with
gtk_container_add(GTK_CONTAINER(scroll), GTK_WIDGET(text));
and it will work as you expect. Not that
gtk_scrolled_window_add_with_viewport() is even deprecated nowadays,
simply adding a child to a ScrolledWindow is enough (it will
automatically add a Viewport for you if required -- which is NOT the
case for GtkTextViews).
Regards,
Colomban
PS:
you do:
char line[512];
const gchar *cmd;
cmd = gtk_entry_get_text(entry);
strcpy(line, cmd);
gtk_entry_set_text(entry, "");
...
gtk_text_buffer_insert_with_tags(buf, ..., line, -1, ...);
Why do you copy the line in a static buffer (that might be too small,
and cause a crash since strcpy() doesn't have a max size parameter)?
You could just put the line into the buffer:
const gchar *line;
line = gtk_entry_get_text(entry);
...
gtk_text_buffer_insert_with_tags(buf, ..., line, -1, ...);
gtk_entry_set_text(entry, "");
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