Programatic(Java) zooming issue(s)

Posted by Fred Damen on
URL: http://imagej.273.s1.nabble.com/Programatic-Java-zooming-issue-s-tp5024578.html

Greetings,

Resizing image windows thru the GUI seems to always work as expected.
Resizing the windows from within a Java plugin seem to work undesirably
about 40% of the time.  The undesirable effects tend to be consistent,
e.g., the second,third, and fifth windows exhibit the same effect each
time the plugin is run.  I suspect that the issue is some sort of a race
condition between ImageJ and Java/System GUI proper, as the symptoms vary
somewhat with load and computer.

The symptoms include:
Window has slightly wrong size and image appears to be the correct
magnification.
Window has correct size and the image is original size.

Both these statements produce these results:
IJ.run("In [+]", "");
IJ.run("Set... ", "zoom=200");

I have found that after show(ing) all the windows if I ...
      Dimension ws = imps[0].getWindow().getSize();
      for(ImagePlus imp : imps)
         imp.getWindow().setSize(ws.width,ws.height);
      for(ImagePlus imp : imps)
         imp.getWindow().getCanvas().fitToWindow();
This seems to adjust the window and image sizes appropriately most of the
time.

Is there a recommended way to zoom a window programmatically that works
consistently and correctly like it does from Image>Zoom>... ?

Thanks in advance,

Fred

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