Project: Eclipse_Platform_UI
Bug 279553 [FieldAssist] ControlDecoration strange behavior when description text is empty string
Reported: 2009-06-08 22:28:12 | Status: verified fixed

Build ID: 3.5RC3 With the following simple code, when I hover over the control decoration, a huge yellow box quickly flashes on the screen and then disappears. I also tried on 3.4.2 and observed the same behavior. Display display = new Display(); Shell shell = new Shell(display); shell.setLayout(new GridLayout(1, false)); Text t = new Text(shell, SWT.BORDER); t.setText("hover on decoration ->"); ControlDecoration decoration = new ControlDecoration(t, SWT.RIGHT); decoration.setImage(FieldDecorationRegistry.getDefault() .getFieldDecoration(FieldDecorationRegistry.DEC_INFORMATION).getImage()); decoration.setDescriptionText(""); shell.pack(); shell.open(); while (!isInterrupted() && !shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } display.dispose();

Files changed in fix:
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ControlDecoration.java tests/org.eclipse.ui.tests/Eclipse JFace Tests/org/eclipse/jface/tests/fieldassist/AbstractFieldAssistTestCase.java tests/org.eclipse.ui.tests/Eclipse JFace Tests/org/eclipse/jface/tests/fieldassist/FieldAssistTestCase.java