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

[Praveen Innamuri <ajay praveen2002 gmail com>]

I had a similar problem (clicking on the text in GtkCellRendererText
causes the 'toggled' event to fire), and I circumvent the problem by
setting GtkCellRendererText to be activable cell using API -
g_object_set (pixbufRenderer, mode, GTK_CELL_RENDERER_MODE_ACTIVATABLE, 0);

Now, that column has 2 activable cells - depending on where the mouse
is clicked, the focus or activate event goes to that particular cell
directly. Using this solution, the row need not to be activated before
the Check box has to be toggled. :)

Hope this helps.

Regards,
Praveen



On Mon, Aug 24, 2009 at 12:01 PM, Grumpy
Buffalo<grumpybuffalo+gtk gmail com> wrote:
> 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
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