Re: GtkCellRendererToggle toggles when clicking on other cell renderers in same column

[Grumpy Buffalo <grumpybuffalo+gtk gmail com>]

I take that back; my solution caused another problem: now the
GtkCellRendererToggle does not fire the toggle event unless the row is
selected prior to clicking on the checkbox. I don't even understand why this
might be happening. Does anybody have a solution for this new problem? This
is getting a little ridiculous. Shouldn't it be fairly easy to have a
treeview containing items with checkboxes and text without the checkbox
being toggled when the text is clicked?

On Sat, Aug 15, 2009 at 5:15 PM, Grumpy Buffalo
<grumpybuffalo+gtk gmail com<grumpybuffalo%2Bgtk gmail com>
> wrote:

> I came up with a solution.
>
> I changed the GtkCellRendererText to a GtkCellRendererCombo. I didn't add
> any items to the combo or even set the model of the combo; the only property
> I set was the "editable" property to true. This created exactly the
> functionality I was looking for. The user can't even tell that the cell
> renderer is a combo box, because it has nothing in it. Clicking on the combo
> does not toggle the GtkCellRendererToggle. I suppose this is because GTK no
> longer considers the column one activatable entity.
>
>
> On Wed, Aug 12, 2009 at 12:38 AM, Grumpy Buffalo <
> grumpybuffalo+gtk gmail com <grumpybuffalo%2Bgtk gmail com>> wrote:
>
> > Hi,
> >
> > I understand why this behavior occurs; I do realize that it would be
> > what is wanted in most circumstances. In this particular case,
> > selecting the row causes one action to occur and toggling the checkbox
> > causes another action to occur. Because all of the cell renderers are
> > considered one activatable entity, it is very difficult to select the
> > row without toggling the checkbox; the user would have to click in
> > another column. I considered having the GtkCellRendererToggle in a
> > separate column, but this is not acceptable either, because the
> > checkbox, pixbuf, and text must all be indented together when a row in
> > the tree is expanded.
> >
> > I suppose overriding the activate method is probably going to be the
> > easiest way of doing this. I'm not looking forward to it; it seems
> > like there should be a more elegant solution to the problem.
> >
> > Thanks a lot for your help.
> >
> > On Wed, Aug 12, 2009 at 12:16 AM, Kristian Rietveld<kris gtk org> wrote:
> > > Hello,
> > >
> > > On Wed, Aug 12, 2009 at 2:32 AM, Grumpy
> > > Buffalo<grumpybuffalo+gtk gmail com <grumpybuffalo%2Bgtk gmail com>>
> > wrote:
> > > > Hi, I am working on a C++ GTK project. I have a GtkTreeView containing
> > > > several columns. In the first column, I have packed in 3 cell
> > > > renderers - the first, a GtkCellRendererToggle; the second, a
> > > > GtkCellRendererPixbuf; the third, a GtkCellRendererText. Everything
> > > > works fine, except that clicking on the text in the
> > > > GtkCellRendererText causes the 'toggled' event to fire on the
> > >
> > > This is happening because the column that you have created has a
> > > single activatable cell renderer.  The column is then seen as a single
> > > activatable entity.  (It is more clearly seen in keyboard navigation,
> > > when this column gets focus it will draw the focus indicator around
> > > all cell renderers instead of around a single cell renderer, again
> > > because there is only a single cell renderer that can be activated).
> > > Often this is the behavior you want, for example when you pack a text
> > > renderer next to the toggle renderer.  It will act the same as a
> > > regular toggle button which also allows clicking on the text.
> > >
> > > > GtkCellRendererToggle. This is no good in this particular case. Is
> > >
> > > Why exactly is it no good in this case?  The contents packed together
> > > in a column surely belong together in some way?
> > >
> > >
> > > > there any way, besides keeping track of where the mouse pointer is, to
> > > > determine whether the user clicked on the checkbox itself or another
> > > > cell renderer in the same column? Thanks in advance for any ideas.
> > >
> > > The only way I can think of so quickly to work around this is probably
> > > to subclass GtkCellRendererToggle and override the activate method to
> > > check the event coordinates that are provided with the cell_area or
> > > background_area coordinates. (GtkCellRendererToggle itself does not do
> > > this and immediately emits the toggled signal).
> > >
> > >
> > > regards,
> > >
> > > -kris.
> >
> > --
> > Grumpy Buffalo
>
>
>
> --
> Grumpy Buffalo



-- 
Grumpy Buffalo