| eclipse forms example not working [message #62349] |
Tue, 10 May 2005 03:53  |
Eclipse User |
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Originally posted by: jtrentlyon.comptrak.com
Hello anyone,
i've created a plugin project and have been trying to get a view using an
eclipse scrollable form (ScrolledForm) to work but am having no luck.
i've attached the forms.jar as an external jar in the Java Build Path. My
code compiles, but when i try to open the view from the runtime workbench
i get a red error. The .log file in the
C:\eclipse\runtime-workbench-workspace\.metadata folder says:
java.lang.NoClassDefFoundError: org/eclipse/ui/forms/widgets/FormToolkit
at ScrollingFormViewer.createPartControl(ScrollingFormViewer.ja va:74)
at org.eclipse.ui.internal.PartPane$2.run(PartPane.java:137)
at
org.eclipse.core.internal.runtime.InternalPlatform.run(Inter nalPlatform.java:616)
at org.eclipse.core.runtime.Platform.run(Platform.java:747)
at org.eclipse.ui.internal.PartPane.createChildControl(PartPane .java:133)
.....
Any help would be greatly appreciated. btw, there seems to be little info
on the web on eclipse forms. I was using the 'Eclipse Forms Programming
Guide', but cant get past first base on it. Are there any other resources?
thanks for some help,
Jesse
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| Re: eclipse forms example not working [message #62372 is a reply to message #62349] |
Tue, 10 May 2005 04:16  |
| Eclipse User |
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Originally posted by: dangallery.seanet.com
hi jesse,
i had a similiar problem. i'm not sure why this works, but you need to
remove teh forms.jar from the java build path, and add the following line
into the requires section of your plugin.xml:
<import plugin="org.eclipse.ui.forms"/>
my complete requires section looks like this:
<requires>
<import plugin="org.eclipse.ui"/>
<import plugin="org.eclipse.core.runtime"/>
<import plugin="org.eclipse.ui.forms"/>
</requires>
i don't know why you cant attach the forms.jar as an external jar. the
code does compiles, so the compiler at least can find the library. why
cant the runtime workbench.
As far as resources, here is a crude sample scrolling form viewpart that i
wrote at one point. Hope you dont mind me pasting the wole thing in.
(note: it doesnt have a package reference becuz i created it in the
default package (under \src). It also has a main() method opening the
scrollable form so you can run it as a java app or in a runtime workbench.
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.eclipse.ui.forms.widgets.ScrolledForm;
import org.eclipse.ui.part.ViewPart;
public class ScrollingFormViewer extends ViewPart {
FormToolkit toolkit;
ScrolledForm scrollingForm;
public static void main (String [] args) {
FormToolkit toolkit;
ScrolledForm scrollingForm;
final Display display = new Display ();
Shell shell = new Shell(display);
shell.setLayout (new FillLayout());
toolkit = new FormToolkit(shell.getDisplay());
scrollingForm = toolkit.createScrolledForm(shell);
scrollingForm.setText("An eclipse Scrolling Form");
Composite body = scrollingForm.getBody();
GridLayout layout = new GridLayout();
body.setLayout(layout);
layout.numColumns = 4;
GridData gd = new GridData();
gd.horizontalSpan = 4;
Label label = toolkit.createLabel(body, "Text field label:");
Text text = toolkit.createText(body, "");
// text.setBackground()
text.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
text.setData(FormToolkit.KEY_DRAW_BORDER, FormToolkit.TEXT_BORDER);
Label label0;
for (int i=0;i<=100;i++) {
label0 = toolkit.createLabel(body, "Text field label "+i);
Text text2 = toolkit.createText(body, new Integer(i).toString());
text2.setData(FormToolkit.KEY_DRAW_BORDER, FormToolkit.TEXT_BORDER);
// toolkit.createText(body,
"nill").setData(FormToolkit.KEY_DRAW_BORDER, FormToolkit.TEXT_BORDER);
}
toolkit.paintBordersFor(body);
// scrollingForm.setWeights(new int[] {30,40,30});
shell.open ();
while (!shell.isDisposed ()) {
if (!display.readAndDispatch ()) display.sleep ();
}
display.dispose ();
}
public void createPartControl(Composite parent) {
toolkit = new FormToolkit(parent.getDisplay());
scrollingForm = toolkit.createScrolledForm(parent);
scrollingForm.setText("An eclipse ScrolledForm, a scrolling form");
Composite body = scrollingForm.getBody();
GridLayout layout = new GridLayout();
body.setLayout(layout);
layout.numColumns = 2;
GridData gd = new GridData();
gd.horizontalSpan = 2;
Label label0;
for (int i=0;i<=100;i++) {
label0 = toolkit.createLabel(body, "Text field label "+i);
Text text2 = toolkit.createText(body, new Integer(i).toString());
text2.setData(FormToolkit.KEY_DRAW_BORDER, FormToolkit.TEXT_BORDER);
// toolkit.createText(body,
"nill").setData(FormToolkit.KEY_DRAW_BORDER, FormToolkit.TEXT_BORDER);
}
Label label = toolkit.createLabel(body, "Text field label:");
Text text = toolkit.createText(body, "");
text.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
text.setData(FormToolkit.KEY_DRAW_BORDER, FormToolkit.TEXT_BORDER);
toolkit.paintBordersFor(body);
}
public void setFocus() {
}
}
// end of code--------------------------------------------------
Hope that helps,
dan
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