7 Oct
2014
7 Oct
'14
10:53 p.m.
Hi Nicolai,
I investigated the new RTNest and your example and it seems that it does
pretty much all I was looking for, so thank you both!
(looks a bit ugly, and I don't know why I have to
make some boxes
translucent to make the text show up).
The reason is quite simple, the elements are placed to the view in the
order in which they were added. So the colored boxes are added on top of
the label.
You can also see this when you move them, they kind of go through each
other. Maybe it would be more natural to move all elements to top when they
are being dragged?
One possible solution would be to add them to a collection and then change
the order on canvas... something like
-------------------
"your other code...."
labels := RTGroup new.
RTNest new for: classesElements add: [ :group :model | ....
....
labels addAll: varShapes.
labels add: methodShape.
].
labels do: [ :each | each trachelShape pushFront ].
"the rest of your code"
-------------------------
However this feels hacky...
Perhaps there could be TRAddCallback (as a counterpart
to TRRemoveCallback), which would be called when the element was added to
the view? It would also eliminate the need to have view already available
in places like RTLabelled.
Peter
On Tue, Oct 7, 2014 at 5:38 PM, Alexandre Bergel <alexandre.bergel(a)me.com>
wrote:
I started to write a chapter about Trachel:
https://dl.dropboxusercontent.com/u/31543901/AgileVisualization/Trachel/010…
There is not much for now… But it is growing. By the way, if someone could
help, it would be fantastic :-)
Alexandre
--
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
On Oct 3, 2014, at 5:03 PM, Peter Uhnák <i.uhnak(a)gmail.com> wrote:
Hi,
I am wondering what is the proper level at which should be addressed
composition
of elements.
Imagine I want to create a diagram of UML class but I want to be able to
dynamically add and remove new lines and sections, including various
formatting (underline, italics, bold, ...) of each line separately. The
RTUMLClassBuilder (or any other builder for that matter) is not an option
since it's a one time build.
The option I see is to subclass RTShape (let's name it MyRTUmlClass) and
implement method trachelShapeFor: .
Now the issue is, that I cannot use other RTShape
(Roassal) elements,
because they would have to be inserted into RTView which may
not be
available at the time - is there a way around it?
So the other option is to use TRShape (Trachel) elements instead which
would be
fine except I feel like I am duplicating code of roassal elements
(so for TRLabelShape I would copy RTLabel trachelShapeFor: and bend it for
my needs), and the second issue is that in updateFor:trachelShape: I would
need to access internal structure of the element and change it (because for
example a new method was added) - does that break encapsulation?
And finally, from conceptual standpoint what should be the content of
RTView
elements? Because if I have diagram full of UML classes I probably
don't care about the content of them when doing layouting - so I would
prefer to have only MyRTUmlClass elements there and not every single label
inside it (as is the case of RTUmlClassBuilder), because otherwise having
access to RTView elements is useless and I must keep reference to correct
objects myself.
Thanks!
Peter
p.s.: Is it currently possible to format text? I saw only color, font
and size...
what about underline/italics/bold?
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