New subject: [Pharo-users] Call for action for Roassal

10 Mar 2016

On Thu, Mar 10, 2016 at 12:36 AM, Martin Bähr &lt;martin(a)realss.com&gt; wrote:

...
  hi,

 i just remembered two things:

 i'd like to see rounded corners on nodes.

We've added this quite some time ago, unless you have something else in
mind.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|v e|
v := RTView new.
e := RTRoundedBox new
size: 100;
borderRadius: 20;
borderColor: Color black;
borderWidth: 1;
element.
v add: e.
v
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

...

 Excerpts from stepharo's message of 2016-02-24 12:42:49 +0100:
       - having a better output (arrows, edge)

 and related to edges:

 i'd like edges to connect to a node on the border of the box, not to the
 center
 of the node. this means the connecting point would always be at the middle
 of
 the side of one edge:

We have about 10 different attach points already. See the 'attach point'
protocol of RTAbstractLine.
Some of them also automatically add extra space if there are multiple lines
between the same elements.

As for bezier and multiline edges, their curvature isn't currently handled
properly, but it's in my todo list (I'll work on this probably during the
weekend).

I'm sure it can be presented in more revealing way, but it's too late for
me today (or is it too early?).

You can play with it (drag the elements to see how it behaves).

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|v attachOptions es e offset|
v := RTView new.
attachOptions := RTAbstractLine selectors select: [ :each | each
 beginsWith: #with ].

offset := 0 @ 0.
attachOptions do: [ :each |
es := RTBox new borderColor: Color black; size: 50; elementsOn: #(a b).
each = #withContinuousCircleAttachPoint
ifTrue: [ es := RTEllipse new borderColor: Color black; size: 50;
elementsOn: #(a b). ].
es translateBy: offset.
es @ RTDraggable.
offset := offset + (0 @ 100).
v addAll: es.

es second translateBy: 300 @ 25.

e := RTArrowedLine new
color: Color black;
perform: each;
edgeFrom: es first to: es second.
e model: each.
v add: e.
e @ (RTLabelled new color: Color black).
].

v
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

...

          ___\|/___
         |         |
        \|         |/
       --|         |--
        /|         |\
         |_________|
             /|\

 bezier edges should always leave at a 90deg angle:
          ____|____
         |         |
         |         |
       --|         |--
         |         |
         |_________|
              |

 optionally, starting at the corners could also be nice:

         \_________/
         |         |
         |         |
         |         |
         |         |
         |_________|
         /         \

 and in such a case bezier edges should leave at 135deg to each side.

 by default the edge should find the nearest connection point, but i'd like
 to
 configure a list of allowed points.

 finally, multiple edges in the same general direction should either leave
 at
 the same point, pick the nearest side that doesn't have an edge already.
 or spaced evenly along the same side if all available sides have edges
 already.

 the list of allowed connection points would have 12 options:
 the middle of 4 sides, 4 corners, and 4 sides as a whole when multiple
 edges
 should be spaced evenly.

 greetings, martin.

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Re: [Pharo-users] Call for action for Roassal