Hi all on this thread,
First I apologize: I was tired last evening and did not remember this
thread when I sent my own post.
Thanks to Jonathan and Claudi.
With a clear mind this morning, I found a very easy solution to my
problem (relaying a sub group to front while keeping it in its main
group):
on MoveGroupToFront pGroup
copy grp pGroup to the owner of grp pGroup
hide grp pGroup -- for reactivity
delete grp pGroup
end MoveGroupToFront
Best Regards from Paris,
Eric Chatonet
Le 2 févr. 06 à 23:44, Jonathan Lynch a écrit :
The only method I know of, is to move your subgroup to the bottom
of the
group, then move all the other subgroups, in their current order,
to the
bottom of the group. When you do this, your desired subgroup will
wind up on
top, without any ownership changes.
Le 2 févr. 06 à 23:54, Claudi Cornaz a écrit :
There is a trick I use to get sub-groups within a master group to
the top when they get selected.
I have 2 invisible grafics (just empty small rects) at the top of
the master group.
Let's call them lowBoundry and highBoundry
Now when the user selects a sub group and I want to bring it to the
front, I first move the
sub group inbetween the 2 invisible graphics. In this way the sub
group
does not become part of the highest sub group. Next I move the the
lowBoundry graphic
to the top. So now from top to bottom: lowBoundry - highBoundy -
the sub group that was moved.
So all we need to do now is move the highBoundry again to the top
to restore there right order.
There is one important little "snag" though. Say the sub group to
move to the top is on layer 10
and consists of 2 controls. The total of layers in the master group
(including the 2
invisible graphics) is 16. This means the lowBoundry wil be on
layer 15.
The moment you change the layer of a sub group it will first be
taken out of the stack.
In this case the sub group consists of 2 controls, so the total
number of layers this sub group
occupies is 3. This means the lowBoundry graphic will first fall
down to layer 12 (15 - 3). In essence
all the controls above the sub group we move, will fall down by the
number of layers the moving group occupies.
This trick works very fast and it doesn't matter how many sub
groups there are. Of course it only
works to bring a sub group to the top, but probably when selecting
objects, something like this might
just be what you need.
I use it in a slightly more complex way in an application where I
have many sub groups but the
sub groups are of different specific types. Let's say some have a
triangular shape, others
a circular shape and the third kind are of square shape. Now when
the user selects a triangle
it should move to the front of all triangles but always stay behind
the circles and the squares. The same applies
of course to the circles and the squares. Each should move to the
top of it's kind but not cross the boundry to other types.
Here I use 3 invisible graphics between the kinds. So above all
triangles there are 3 invis grc's then come
the circles with also 3 invis grc's and next come the squares and
finaly again 3 invis grc's (actualy for the top,
2 graphics is enough) In between you need 3 graphics of which the
topmost never moves, but prevents
the other 2 graphics to become part of a sub group when they are
switched around.
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