- Code: Select all
package au.com.emia.claim.gui.view;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.RowData;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
public class Test extends Composite {
private Label mLabel;
public Test(Composite parent, int style) {
super(parent, style);
setLayout(new RowLayout());
{
mLabel = new Label(this, SWT.NONE);
final RowData rowData = new RowData();
rowData.width = 20;
mLabel.setLayoutData(rowData);
mLabel.setText("");
}
}
public void dispose() {
super.dispose();
}
protected void checkSubclass() {
}
}
The problem goes away if I hide the setLayoutData line with
- Code: Select all
mLabel.setLayoutData(rowData); //$hide$
The exception thrown is
- Code: Select all
!ENTRY com.swtdesigner 4 4 2005-07-27 18:11:32.739
!MESSAGE Designer internal error: java.lang.NullPointerException
!STACK 0
java.lang.NullPointerException
at com.swtdesigner.model.swt.layout.row.RowDataInfo.setLayoutData(RowDataInfo.java:56)
at com.swtdesigner.model.swt.layout.LayoutInfo.setLayoutData(LayoutInfo.java:345)
at com.swtdesigner.model.swt.widgets.control.ControlInfo.applyLayoutData(ControlInfo.java:632)
at com.swtdesigner.model.swt.widgets.control.ControlInfo.createControl(ControlInfo.java:493)
at com.swtdesigner.model.swt.widgets.composite.AbstractCompositeInfo.createControl(AbstractCompositeInfo.java:346)
at com.swtdesigner.model.swt.widgets.composite.ThisCompositeInfo.createControl(ThisCompositeInfo.java:99)
at com.swtdesigner.model.swt.widgets.composite.AbstractCompositeInfo.createControl(AbstractCompositeInfo.java:309)
at com.swtdesigner.model.JavaInfo.notifyPropertyChanged(JavaInfo.java:5703)
at com.swtdesigner.model.swt.widgets.control.ControlInfo.notifyPropertyChanged(ControlInfo.java:255)
at com.swtdesigner.model.JavaInfo.notifyPropertyChanged(JavaInfo.java:5688)
at com.swtdesigner.gef.common.property.DesignerEditorPropertyComposite.handleRootNodeSelected(DesignerEditorPropertyComposite.java:546)
at com.swtdesigner.gef.common.property.DesignerEditorPropertyComposite.updatePropertyComposite(DesignerEditorPropertyComposite.java:725)
at com.swtdesigner.gef.DesignerEditor.parseCompilationUnit(DesignerEditor.java:1022)
at com.swtdesigner.gef.DesignerEditor.handleActivate(DesignerEditor.java:921)
at com.swtdesigner.gef.DesignerEditor.handleActivate(DesignerEditor.java:887)
at com.swtdesigner.editors.MultiPageEditor.showDesignEditor(MultiPageEditor.java:325)
at com.swtdesigner.editors.MultiPageEditor$2.widgetSelected(MultiPageEditor.java:168)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:90)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:867)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:852)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:660)
at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:3138)
at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1922)
at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.java:288)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3080)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2713)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1699)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1663)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:367)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103)
at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:226)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:163)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334)
at org.eclipse.core.launcher.Main.basicRun(Main.java:278)
at org.eclipse.core.launcher.Main.run(Main.java:973)
at org.eclipse.core.launcher.Main.main(Main.java:948)
Cheers
James
