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Re: SpringLayout seems unworkable on OSX

Mark,

Are you 100% sure you're using Java 5 on Windows?  Your SpringLayout should be incorrect for any Java 4 or 5 platform.  The reason can be found in Sun bug ID 4726194.  Basically, Java 5's SpringLayout constraints are order-dependent.  So setting WEST then EAST is completely different to setting EAST then WEST.  The reason for this is that each axis actually has three types of constraints: EAST, WEST, WIDTH and NORTH, SOUTH, HEIGHT.  When you set the EAST spring, the WEST spring is automatically adjusted using the WIDTH spring.  When you set the WEST spring, the WIDTH spring is automatically adjusted using the EAST spring, etc.  e.g.  for the horizontal axis the following formula must hold true:  width = east - west 

The basic rule for Java 5 SpringLayout is EAST/SOUTH first, then WEST/NORTH.  I've attached a modified version of your example which works perfectly in all Java versions.  I suspect that on Windows you where using Java 6 without knowing it.

Regards,
Brendon.

Attachment: SpringLayoutTest.java
Description: Binary data



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References: 
 >Re: SpringLayout seems unworkable on OSX (From: Greg Guerin <email@hidden>)
 >Re: SpringLayout seems unworkable on OSX (From: Mark Leone <email@hidden>)



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