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Content-Type: text/plain
Message-ID:  <8C3ACF2AFE15D411AFFD00805FA6303B252999@PFINT1>
Date:         Tue, 28 May 2002 13:03:03 +0200
Reply-To:     ImageJ Interest Group <[log in to unmask]>
Sender:       ImageJ Interest Group <[log in to unmask]>
From:         Gary Chinga <[log in to unmask]>
Subject:      Re: Generic dialog...

Thanks Wayne (and all the other replies), I have added your code to the
plugin and it works greit!

Regards,

Gary.






> -----Original Message-----
> From: Wayne Rasband [SMTP:[log in to unmask]]
> Sent: 27. mai 2002 19:46
> To:   [log in to unmask]
> Subject:      Re: Generic dialog...
>
> >        I am wondering if it is possible to change values in a dialog box
> >automatically if one of the fields is changed. In the example below I
> want
> >the min Sample size (4) to change according to the entered pixel size. I
> >also want to avoid having two different dialogs but both fields in the
> same.
> >
> >                        GenericDialog gd = new GenericDialog("Roughness
> >statistics...");
> >                        gd.addNumericField("Pixel size: ", 1, 0);
> >                        gd.addNumericField("Sampling size: ", 4, 0);
> >
> >
> >        Thanks for any help,
>
> You can do this by subclassing GenericDialog. I have included an example
> plugin that sets the sample size to four times the pixel size whenever the
> pixel size is changed. The ScaleDialog (Analyze->Set Scale) and
> FolderOpener (File->Import->Image Sequence) internal plugins also subclass
> Generic Dialog.
>
> -wayne
>
> /*********** Generic_Dialog_Test.java  *************/
> import ij.*;
> import ij.process.*;
> import ij.gui.*;
> import java.awt.*;
> import ij.plugin.*;
> import java.awt.event.*;
>
> public class Generic_Dialog_Test implements PlugIn {
>     static int pixelSize = 1;
>     static int sampleSize = 4;
>
>     public void run(String arg) {
>         GenericDialog gd = new RoughnessDialog("Roughness statistics...");
>         gd.addNumericField("Pixel size: ", pixelSize, 0);
>         gd.addNumericField("Sampling size: ", sampleSize, 0);
>         gd.showDialog();
>         if (gd.wasCanceled())
>             return;
>         pixelSize = (int)gd.getNextNumber();
>         pixelSize = (int)gd.getNextNumber();
>     }
> }
>
> class RoughnessDialog extends GenericDialog {
>     int oldPixelSize = 0;
>
>     RoughnessDialog(String title) {
>         super(title);
>     }
>
>     public void textValueChanged(TextEvent e) {
>         TextField tf1 = ((TextField)numberField.elementAt(0));
>         Double d = getValue(tf1.getText());
>         if (d==null)
>             return;
>         int pixelSize = (int)d.doubleValue();
>         if (pixelSize==oldPixelSize)
>             return;
>         oldPixelSize = pixelSize;
>         int sampleSize = 4*pixelSize;
>         TextField tf2 = ((TextField)numberField.elementAt(1));
>         tf2.setText(""+sampleSize);
>     }
>
> }

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