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1 | // onHover is called with null value when mouse moves outside of image surface |
2 | // onHover receives image coordinates |
3 | svoid imageSurfaceOnHover(ImageSurface is, VF1<Pt> onHover) {
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4 | if (is == null || onHover == null) ret; |
5 | swing {
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6 | MouseAdapter ma = new MouseAdapter {
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7 | public void mouseMoved(MouseEvent e) { pick(e); }
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8 | public void mouseEntered(MouseEvent e) { pick(e); }
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9 | public void mouseExited(MouseEvent e) { pick(null); }
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10 | |
11 | void pick(MouseEvent e) pcall {
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12 | callF(onHover, e == null ? (Pt) null : is.pointFromEvent(e)); |
13 | } |
14 | }; |
15 | is.addMouseMotionListener(ma); |
16 | is.addMouseListener(ma); |
17 | } |
18 | } |
19 | |
20 | svoid imageSurfaceOnHover(ImageSurface is, IVF1<Pt> onHover) {
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21 | imageSurfaceOnHover(is, toVF1(onHover)); |
22 | } |
Began life as a copy of #1024564
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| Snippet ID: | #1024565 |
| Snippet name: | imageSurfaceOnHover |
| Eternal ID of this version: | #1024565/4 |
| Text MD5: | 68369fbd8f6bcf3bc42d63e677da116d |
| Transpilation MD5: | 9a3f38911f944e2daa6133404f604aa9 |
| Author: | stefan |
| Category: | javax / image analysis |
| Type: | JavaX fragment (include) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2022-03-14 20:18:31 |
| Source code size: | 775 bytes / 22 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 198 / 304 |
| Version history: | 3 change(s) |
| Referenced in: | [show references] |