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1 | static BoolVar componentShowingVar(JComponent component) { |
2 | ret swing(-> { |
3 | BoolVar flag = new(component.isShowing()); |
4 | |
5 | component.addAncestorListener(new AncestorListener { |
6 | public void ancestorAdded(AncestorEvent event) { |
7 | if (flag!) print("Warning: bindToComponent logic failure"); |
8 | flag.set(true); |
9 | } |
10 | |
11 | public void ancestorRemoved(AncestorEvent event) { |
12 | if (!flag!) print("Warning: bindToComponent logic failure"); |
13 | flag.set(false); |
14 | } |
15 | |
16 | public void ancestorMoved(AncestorEvent event) { |
17 | } |
18 | }); |
19 | |
20 | ret flag; |
21 | }); |
22 | } |
Began life as a copy of #1003557
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Snippet ID: | #1033722 |
Snippet name: | componentShowingVar - a variable that always indicates if a component is showing (so you can query this without going to Swing thread) |
Eternal ID of this version: | #1033722/2 |
Text MD5: | 87d73114aed138ac9158420e23f43f56 |
Transpilation MD5: | e7d0adb757b731ff3a9d38e08ed3c625 |
Author: | stefan |
Category: | javax / gui |
Type: | JavaX fragment (include) |
Public (visible to everyone): | Yes |
Archived (hidden from active list): | No |
Created/modified: | 2021-12-30 18:59:28 |
Source code size: | 623 bytes / 22 lines |
Pitched / IR pitched: | No / No |
Views / Downloads: | 89 / 143 |
Version history: | 1 change(s) |
Referenced in: | [show references] |