DynCalculatedList [1015977]

< > BotCompany Repo | #1015977 // DynCalculatedList

JavaX fragment (include)

abstract sclass DynCalculatedList extends DynModule {
  transient JList list;
  transient L<S> results;
  transient bool calculateWhenHidden;

  visualize { ret list = jlist(calc()); }
  void unvisualize() { list = null; }  
  void update() {
    temp enter();
    if (list != null || calculateWhenHidden)
      fillListWithStrings(list, results = calc());
  }

  // Note: This is called on every update, so you should cache
  // results IN the calc function if they are expensive to make
  abstract L<S> calc();
  
  void scrollDown {
    scrollAllTheWayDown(list);
  }
  
  S selected() { ret selectedItem(list); }
}

Author comment

Began life as a copy of #1015929

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Snippet ID:

#1015977

Snippet name:

DynCalculatedList

Eternal ID of this version:

#1015977/16

Text MD5:

b555af5aa62cdef533a1df7628de0b1e

Author:

stefan

Category:

javax

Type:

JavaX fragment (include)

Public (visible to everyone):

Yes

Archived (hidden from active list):

Created/modified:

2019-01-02 17:08:17

Source code size:

642 bytes / 23 lines

Pitched / IR pitched:

No / No

Views / Downloads:

575 / 3293

Version history:

15 change(s)

Referenced in:

[show references]

1	abstract sclass DynCalculatedList extends DynModule {
2	transient JList list;
3	transient L<S> results;
4	transient bool calculateWhenHidden;
5
6	visualize { ret list = jlist(calc()); }
7	void unvisualize() { list = null; }
8	void update() {
9	temp enter();
10	if (list != null \|\| calculateWhenHidden)
11	fillListWithStrings(list, results = calc());
12	}
13
14	// Note: This is called on every update, so you should cache
15	// results IN the calc function if they are expensive to make
16	abstract L<S> calc();
17
18	void scrollDown {
19	scrollAllTheWayDown(list);
20	}
21
22	S selected() { ret selectedItem(list); }
23	}