Hi Alex,
This composition is exciting.
However, I think there is still another opportunity. RTComposer should be
just a view with some nodes inside where the other views reside. Then, the
instructions like #move:above: should be the ability of a layout. This
would imply less concepts and you would also get the ability of creating a
custom layout. What do you think?
Cheers,
Doru
On Mon, Aug 4, 2014 at 1:31 AM, Alexandre Bergel <alexandre.bergel(a)me.com>
wrote:
Dear All,
This week end has been intense for Roassal (yeah, I got a flu, so I stayed
home :-)
Two major improvements of Roassal: Pie builder and Builder composition
have been added.
I will send a post about the pie builder later on. In this email I want to
discuss the composition. Here is an example of builder composition:
The code is available from RTComposerExample>>exampleClassAnalysis
The cool thing, is that highlights are propagated across different
builders. This means that you can globally highlight some elements.
The class RTComposer is actually quite simple.
Here is a short and simple example, in which code dedicated to the
composition is indicated in *bold*:
-=-=—=-=-=—=-=-=—=-=-=—=-=-=—=
classes := Collection withAllSubclasses.
*c := RTComposer new.*
b1 := RTMondrianViewBuilder new.
*b1 view: c view. *b1 nodes: classes.
b1 gridLayout.
b1 build.
*c propagateHighlight.c group: #hierarchy.*
b2 := RTCharterBuilder new.
*b2 view: c view.*b2 extent: 200 @ 200.
b2 points: classes.
b2 allY: #numberOfMethods.
b2 stackX.
b2 curve.
b2 axisX.
b2 axisYWithNumberOfTicks: 4.
*c propagateHighlight.c group: #curve.c move: #hierarchy above: #curve.c
open*
-=-=—=-=-=—=-=-=—=-=-=—=-=-=—=
This is still early work. Many more things have to be improved. For
example, the layout of builder is quite simple. Maybe we will need
something more complex. The propagation of events may also be improved.
Feedbacks are welcome. This is a crucial point of Roassal, and it has to
be done right.
Cheers,
Alexandre
--
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel
http://www.bergel.eu
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