20 Mar
2015
20 Mar
'15
12:42 a.m.
Hi Jan,
Help me to understand what’s going on :-)
Here is a script:
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
compo := RTCompositeShape new.
compo add: (RTEllipse new size: [ :tupple | tupple third ]; color: Color lightBlue).
compo add: (RTEllipse new size: [ :tupple | tupple second ]; color: Color blue).
compo add: (RTLabel new text: [ :tupple | tupple first ]; color: Color red).
v := RTView new.
data := {{ 'hello' . 30 . 50 } . { 'World' . 20 . 70} }.
v addAll: (compo elementsOn: data).
RTHorizontalLineLayout new alignCenter; on: v elements.
v elements @ RTDraggable.
v
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
It produces the following:
Why do you want to call #update?
Alexandre
On Mar 19, 2015, at 6:22 PM, Jan B.
<bliznjan(a)fit.cvut.cz> wrote:
Hello
I am trying to work with composite shapes, but I encountered a problem.
Let's say I need to create a circle... and in the center of it is another,
smaller, circle with label (but I need it to be centered according to both
label and smaller circle, that's why I decided to use composite shapes
instead of RTLabelled).
I am able to create it just fine, problem is when I call update on its
RTElement. I'm not sure whether I am even supposed to do it, but I think I
should be.
I start with just the inner circle with label:
| composite view |
composite := (RTLabel new
text: 'label';
yourself)
+
(RTEllipse new
size: 10;
yourself).
composite horizontal.
element := composite element.
view := RTView new.
view
add: element;
open.
element update.
Before element update, it looks fine, but when I call update, composite
layout (horizontal) gets lost.
Let's say I can ignore this problem (which I can't), and I will try the same
thing with whole shape
| composite view subcomposite |
subcomposite := (RTLabel new
text: 'label';
yourself)
+
(RTEllipse new
size: 10;
yourself).
subcomposite horizontal.
composite := (RTEllipse new
size: 50;
color: Color transparent;
borderColor: Color black;
yourself) + subcomposite.
element := composite element.
view := RTView new.
view
add: element;
open.
element update
this time I get exception MessageNotUnderstood: TRCompositeShape>>text:on:
I will appreciate any help, either by fixing something if it is broken, or
explaining how to reach my goal the correct way.
Jan
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Alexandre Bergel http://www.bergel.eu
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