Thanks a lot!!!!
> A while back I recall Owen saying that GtkWidget's 'expose-event' signal > could be relied on as an indication that the idle thread that does the > rendering has completed updating. > > http://library.gnome.org/devel/gtk/stable/GtkWidget.html#GtkWidget-expose-event > This works perfectly for me. Regards, LUK 2008/11/13 Andrew Cowie <[EMAIL PROTECTED]> > On Thu, 2008-11-13 at 09:23 +0000, Lukasz Gromotowicz wrote: > > is there any way to check if the whole GtkTextBuffer had been rendered > > to the GtkTextView? > > A while back I recall Owen saying that GtkWidget's 'expose-event' signal > could be relied on as an indication that the idle thread that does the > rendering has completed updating. > > http://library.gnome.org/devel/gtk/stable/GtkWidget.html#GtkWidget-expose-event > > Which certainly makes sense, seeing as how the result of doing all the > line height calculations is to _draw_ the resultant lines, and thence > expose. So that might work for you. > > > I want to display the procentage of the data displayed on the screen > > (and update it during scrolling) > > I ran into something similar; in my case the problem was the fact that > all the line height calculations and conversions are *wrong* before > [re]validation of the line heights has occurred. > > Reading the GtkTextView source code I discovered that the emission of > the 'value-changed' signal on the GtkAdjustment (controlling the > position of the GtkScrollbar) is the internal trigger for the > revalidation to occur. > > http://library.gnome.org/devel/gtk/stable/GtkAdjustment.html#GtkAdjustment-value-changed > > So, manually emitting that signal can be a mechanism to initiate the > redrawing process. This isn't public API, but it does seem to work. See > line 53 of > http://svn.gnome.org/viewvc/gtk%2B/trunk/gtk/gtktextview.c?view=markup > > I wrote about our experience of using it here: > > http://java-gnome.sourceforge.net/4.0/doc/api/org/gnome/gtk/TextView.html#height > > The issue of validation seems to come up a lot. It's a shame that there > isn't a "force redraw" or "force validate" method on GtkTreeView. > > AfC > Sydney > > -- > Andrew Frederick Cowie > > Operational Dynamics is an operations and engineering consultancy > focusing on IT strategy, organizational architecture, systems > review, and effective procedures for change management. We actively > carry out research and development in these areas on behalf of our > clients, and enable successful use of open source in their mission > critical enterprises, worldwide. > > http://www.operationaldynamics.com/ > > Sydney New York Toronto London > > _______________________________________________ > gtk-list mailing list > [email protected] > http://mail.gnome.org/mailman/listinfo/gtk-list > >
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