1 | static int updateCanvas_retryInterval = 50; |
2 | |
3 | // if makeImg returns null, it is recalled after a delay |
4 | static void updateCanvas(final Canvas canvas, fO makeImg) {
|
5 | awtIfNecessary {
|
6 | if (canvas.updating || canvas.getWidth() == 0) ret; |
7 | canvas.updating = true; |
8 | try {
|
9 | BufferedImage img = asBufferedImage(callF(makeImg, canvas.getWidth(), canvas.getHeight())); |
10 | if (img != null) {
|
11 | canvas.setImage(img); |
12 | canvas.updating = false; |
13 | } else |
14 | awtLater(updateCanvas_retryInterval, r {
|
15 | canvas.updating = false; |
16 | updateCanvas(canvas, makeImg); |
17 | }); |
18 | } catch e {
|
19 | canvas.updating = false; |
20 | throw rethrow(e); |
21 | } |
22 | } |
23 | } |
24 | |
25 | static void updateCanvas(final Canvas canvas) {
|
26 | if (canvas != null) canvas.update(); |
27 | } |
Began life as a copy of #1007284
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| Snippet ID: | #1007300 |
| Snippet name: | updateCanvas - repaint jcanvas |
| Eternal ID of this version: | #1007300/16 |
| Text MD5: | bdca4fb73c2192d9b9ba1418dfb98f1c |
| Author: | stefan |
| Category: | javax / gui |
| Type: | JavaX fragment (include) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2017-08-21 16:52:32 |
| Source code size: | 809 bytes / 27 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 643 / 674 |
| Version history: | 15 change(s) |
| Referenced in: | [show references] |