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< > BotCompany Repo | #1024564 // imageSurfaceColorPicker

JavaX fragment (include) [tags: use-pretranspiled]

Uses 108K of libraries. Click here for Pure Java version (9058L/65K).

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// onColor is called with null value when mouse moves outside of image surface
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svoid imageSurfaceColorPicker(ImageSurface is, VF1<RGB> onColor) {
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  if (is == null || onColor == null) ret;
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  swing {
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    MouseAdapter ma = new MouseAdapter {
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      public void mouseMoved(MouseEvent e) { pick(e); }
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      public void mouseEntered(MouseEvent e) { pick(e); }
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      public void mouseExited(MouseEvent e) { pick(null); }
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      void pick(MouseEvent e) {
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        if (e == null) callF(onColor, (RGB) null);
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        else callF(onColor, bufferedImage_getRGB(is.getImage(), is.pointFromEvent(e)));
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      }
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    };
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    is.addMouseMotionListener(ma);
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    is.addMouseListener(ma);
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  }
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}

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Snippet ID: #1024564
Snippet name: imageSurfaceColorPicker
Eternal ID of this version: #1024564/4
Text MD5: 69ff8d5247413dc46aefa9060ceca58b
Transpilation MD5: a3dd21e019c980ee367671645f1dc831
Author: stefan
Category: javax / image analysis
Type: JavaX fragment (include)
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2019-08-18 14:52:56
Source code size: 692 bytes / 18 lines
Pitched / IR pitched: No / No
Views / Downloads: 137 / 211
Version history: 3 change(s)
Referenced in: [show references]