Hi Wim,
On Mon, Feb 23, 2009 at 3:54 PM, Wim Dumon <[email protected]> wrote:
> 2009/2/21 Maurice Gittens <[email protected]>:
> > Hi all,
> >
> > I'm wondering what it would take to have Wt create right-to-left trees
> like
> > the following example I found on the Web.
> >
> > http://www.obout.com/t2/ertl.aspx
> >
>
> It never occured to me to do it this way. It's a matter of
> implementing it, I don't see technical objections. Do you see a lot of
> applications for this kind of trees?
>
Yes I do.
In fact this was one of the first things I looked for when I started playing
with Wt.
However I haven't seen many toolkits which allow trees to grow from right to
left.
like the example presented above.
> > Would vertical ones (top-to-bottom or bottom-to-top) be feasible?
> >
>
> I'm having trouble to understand exactly what you mean here... If I'm
> not mistaken, you propose 4 kinds of trees, opposed to our current
> version:
> 1. 'vertical' trees (like the current implementation), where the tree
> is positioned at either side of the axis (left or right)
> 2. 'horizontal' trees, where the tree is positioned either above or
> below an axis.
> Do you also want rotated text? Do you have a screenshot?
>
I'm afraid I do not have a screenshot of top-to-bottom or bottom-to-top
trees;
I have personally never seen them implemented.
But consider the Wt treeview example:
http://www.webtoolkit.eu/wt/examples/treeview-dragdrop/treeview-dragdrop.wt
In the case that there are very many columns to be presented to the user,
I would like to use a vertically growing tree to collapse/expand columns
in the same way that I can currently collapse/expand rows using a
horizontally growing tree.
It also seems quite natural to be able to place the tree used for collapsing
columns
above or below the table of cells. No?
It is this type of flexibility that I am seeking; I can't imagine that I am
the only one who would
find flexibility useful.
Kind regards,
Maurice
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