01: /*
02: * Copyright 2001-2006 C:1 Financial Services GmbH
03: *
04: * This software is free software; you can redistribute it and/or
05: * modify it under the terms of the GNU Lesser General Public
06: * License Version 2.1, as published by the Free Software Foundation.
07: *
08: * This software is distributed in the hope that it will be useful,
09: * but WITHOUT ANY WARRANTY; without even the implied warranty of
10: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11: * Lesser General Public License for more details.
12: *
13: * You should have received a copy of the GNU Lesser General Public
14: * License along with this library; if not, write to the Free Software
15: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
16: */
17:
18: package de.finix.contelligent.client.gui;
19:
20: /**
21: * Abstract superclass for GUIs having editor and renderer in common.
22: */
23: public abstract class AbstractGUIWithCommonRendererAndEditor extends
24: AbstractGUI {
25:
26: private ComponentEditor editor = null;
27:
28: abstract protected ComponentEditor createEditor(boolean editable);
29:
30: private void assureEditorCreated(boolean editable) {
31: if (editor == null) {
32: editor = createEditor(editable);
33: } else if (editor.isEditable() != editable) {
34: // only change this, if neccessary as it may take quite some time...
35: editor.setEditable(editable);
36: }
37: }
38:
39: public ComponentEditor getEditor(int type)
40: throws UnsupportedGUIException {
41: if (!isSupported(type)) {
42: throw new UnsupportedGUIException(getComponent());
43: }
44: assureEditorCreated(true);
45: return editor;
46: }
47:
48: public ComponentRenderer getRenderer(int type)
49: throws UnsupportedGUIException {
50: if (!isSupported(type)) {
51: throw new UnsupportedGUIException(getComponent());
52: }
53: assureEditorCreated(false);
54: return editor;
55: }
56: }
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