Re: Can't get JPanel to open

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I assume you are trying to do this with a NetBeans Platform app or module,
no? Besides the missing UI do you see any errors?

You might want to take a look at the way the NetBeans Module System works.

Perhaps ImageJ accepts a ClassLoader argument? You can get the main
ClassLoader from Lookup.getDefault()
http://wiki.netbeans.org/ClassloaderTrick



--emi

On Wed, Mar 15, 2017 at 8:28 PM, Christopher Coulon <
[email protected]> wrote:

> I am trying to get my JPanel to display in my Netbeans project; I am usin=
g
> the Maven git hub Process_Pixels, and I can run that class with the image
> and the instance of ImageJ, but I cannot find any way to display my GUI
> (JPanel).  I created a class from my RoA_.java code, and I tried this cod=
e,
> which creates an instance of ImageJ, but does not show the JPanel.  I tri=
ed
> the code "IJ.runPlugIn(clazz.getName(), "=E2=80=9D);=E2=80=9D and " RoA_ =
ra =3D new RoA_();
> ra.setVisible(true);=E2=80=9D, but nothing works.  How do I get the JPane=
l to show
> up?
>
> public static void main(String[] args) {
> // set the plugins.dir property to make the plugin appear in the Plugins
> menu
> Class<?> clazz =3D RoA_.class;
> String url =3D clazz.getResource("/" + clazz.getName().replace('.', '/') =
+
> ".class").toString();
> String pluginsDir =3D url.substring("file:".length(), url.length() -
> clazz.getName().length() - ".class".length());
> System.setProperty("plugins.dir", pluginsDir);
>
> // start ImageJ
> new ImageJ();
>
> // open the Clown sample
> // ImagePlus image =3D IJ.openImage("http://imagej.net/images/clown.jpg")=
;
> // image.show();
>
> // run the plugin
> IJ.runPlugIn(clazz.getName(), "");
>                 RoA_ ra =3D new RoA_();
>                 ra.setVisible(true);
> }
>
>

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<div dir=3D"ltr">I assume you are trying to do this with a NetBeans Platfor=
m app or module, no? Besides the missing UI do you see any errors?<div><br>=
</div><div>You might want to take a look at the way the NetBeans Module Sys=
tem works.</div><div><br></div><div>Perhaps ImageJ accepts a ClassLoader ar=
gument? You can get the main ClassLoader from Lookup.getDefault()=C2=A0<a h=
ref=3D"http://wiki.netbeans.org/ClassloaderTrick">http://wiki.netbeans.org/=
ClassloaderTrick</a></div><div><br></div></div><div class=3D"gmail_extra"><=
br clear=3D"all"><div><div class=3D"gmail_signature" data-smartmail=3D"gmai=
l_signature"><div dir=3D"ltr"><div><br></div><div>--emi<br></div></div></di=
v></div>
<br><div class=3D"gmail_quote">On Wed, Mar 15, 2017 at 8:28 PM, Christopher=
 Coulon <span dir=3D"ltr">&lt;<a href=3D"mailto:[email protected]=
m" target=3D"_blank">[email protected]</a>&gt;</span> wrote:<br>=
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div style=3D"word-wrap:break-word">I am try=
ing to get my JPanel to display in my Netbeans project; I am using the Mave=
n git hub Process_Pixels, and I can run that class with the image and the i=
nstance of ImageJ, but I cannot find any way to display my GUI (JPanel).=C2=
=A0 I created a class from my RoA_.java code, and I tried this code, which =
creates an instance of ImageJ, but does not show the JPanel.=C2=A0 I tried =
the code &quot;IJ.runPlugIn(clazz.getName(), &quot;=E2=80=9D);=E2=80=9D and=
 &quot; RoA_ ra =3D new RoA_(); ra.setVisible(true);=E2=80=9D, but nothing =
works.=C2=A0 How do I get the JPanel to show up?<div><br></div><blockquote =
style=3D"margin:0px 0px 0px 40px;border:none;padding:0px"><div><div><span c=
lass=3D"m_-2452230949949566499Apple-tab-span" style=3D"white-space:pre-wrap=
">	</span>public static void main(String[] args) {</div><div><span class=3D=
"m_-2452230949949566499Apple-tab-span" style=3D"white-space:pre-wrap">		</s=
pan>// set the plugins.dir property to make the plugin appear in the Plugin=
s menu</div><div><span class=3D"m_-2452230949949566499Apple-tab-span" style=
=3D"white-space:pre-wrap">		</span>Class&lt;?&gt; clazz =3D RoA_.class;</di=
v><div><span class=3D"m_-2452230949949566499Apple-tab-span" style=3D"white-=
space:pre-wrap">		</span>String url =3D clazz.getResource(&quot;/&quot; + c=
lazz.getName().replace(&#39;.&#39;, &#39;/&#39;) + &quot;.class&quot;).toSt=
ring();</div><div><span class=3D"m_-2452230949949566499Apple-tab-span" styl=
e=3D"white-space:pre-wrap">		</span>String pluginsDir =3D url.substring(&qu=
ot;file:&quot;.length()<wbr>, url.length() - clazz.getName().length() - &qu=
ot;.class&quot;.length());</div><div><span class=3D"m_-2452230949949566499A=
pple-tab-span" style=3D"white-space:pre-wrap">		</span>System.setProperty(&=
quot;plugins.<wbr>dir&quot;, pluginsDir);</div><div><br></div><div><span cl=
ass=3D"m_-2452230949949566499Apple-tab-span" style=3D"white-space:pre-wrap"=
>		</span>// start ImageJ</div><div><span class=3D"m_-2452230949949566499Ap=
ple-tab-span" style=3D"white-space:pre-wrap">		</span>new ImageJ();</div><d=
iv><br></div><div><span class=3D"m_-2452230949949566499Apple-tab-span" styl=
e=3D"white-space:pre-wrap">		</span>// open the Clown sample</div><div>//<s=
pan class=3D"m_-2452230949949566499Apple-tab-span" style=3D"white-space:pre=
-wrap">		</span>ImagePlus image =3D IJ.openImage(&quot;<a href=3D"http://im=
agej.net/images/clown.jpg" target=3D"_blank">http://imagej.<wbr>net/images/=
clown.jpg</a>&quot;);</div><div>//<span class=3D"m_-2452230949949566499Appl=
e-tab-span" style=3D"white-space:pre-wrap">		</span>image.show();</div><div=
><br></div><div><span class=3D"m_-2452230949949566499Apple-tab-span" style=
=3D"white-space:pre-wrap">		</span>// run the plugin</div><div><span class=
=3D"m_-2452230949949566499Apple-tab-span" style=3D"white-space:pre-wrap">		=
</span>IJ.runPlugIn(clazz.getName(), &quot;&quot;);</div><div>=C2=A0 =C2=A0=
 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 RoA_ ra =3D new RoA_();</div><di=
v>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ra.setVisible(tru=
e);</div><div><span class=3D"m_-2452230949949566499Apple-tab-span" style=3D=
"white-space:pre-wrap">	</span>}</div></div></blockquote></div></blockquote=
></div><br></div>

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