public DataTypeCombo(Composite parent, int style, DataTypeRegistry registry) {
super(parent, style);
this.registry = registry;
setLayout(new FillLayout());
dataTypeCombo = new ComboViewer(this, SWT.READ_ONLY);
dataTypeCombo.setLabelProvider(
new LabelProvider() {
public String getText(Object element) {
return ((DataTypeRegistry.IDataTypeInfo) element).getName();
}
});
dataTypeCombo.add(registry.getDataTypes().toArray(new DataTypeRegistry.IDataTypeInfo[0]));
}
public void setDataType(DataType dataType) {
if (dataType == null) {
dataTypeCombo.setSelection(null);
} else {
// TODO : check what happens if dataType not in combo
try {
dataTypeCombo.setSelection(
new StructuredSelection(registry.getDataTypeInfo(dataType.getClass())));
} catch (IllegalArgumentException e) {
// "DataTypeInfo not found in registry: " + dataType.getClass()
DroolsEclipsePlugin.log(e);
}
}
}
public void setDataType(DataType type) {
((Composite) editor).dispose();
if (type == null) {
editor = new EmptyEditor(this);
} else {
Class editorClass = null;
try {
editorClass = registry.getDataTypeInfo(type.getClass()).getValueEditorClass();
editor =
(Editor)
editorClass
.getConstructor(new Class[] {Composite.class})
.newInstance(new Object[] {this});
} catch (IllegalArgumentException e) {
// "Could not find data type info for type " + type.getClass()
DroolsEclipsePlugin.log(e);
editor = new EmptyEditor(this);
} catch (InstantiationException e) {
// "Could not create editor for editor " + editorClass
DroolsEclipsePlugin.log(e);
editor = new EmptyEditor(this);
} catch (NoSuchMethodException e) {
// "Could not create editor for editor " + editorClass
DroolsEclipsePlugin.log(e);
editor = new EmptyEditor(this);
} catch (InvocationTargetException e) {
// "Could not create editor for editor " + editorClass
DroolsEclipsePlugin.log(e);
editor = new EmptyEditor(this);
} catch (IllegalAccessException e) {
// "Could not create editor for editor " + editorClass
DroolsEclipsePlugin.log(e);
editor = new EmptyEditor(this);
}
editor.setDataType(type);
layout();
}
}