01: /*
02: *
03: *
04: * Copyright 1990-2007 Sun Microsystems, Inc. All Rights Reserved.
05: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
06: *
07: * This program is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU General Public License version
09: * 2 only, as published by the Free Software Foundation.
10: *
11: * This program is distributed in the hope that it will be useful, but
12: * WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: * General Public License version 2 for more details (a copy is
15: * included at /legal/license.txt).
16: *
17: * You should have received a copy of the GNU General Public License
18: * version 2 along with this work; if not, write to the Free Software
19: * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA
21: *
22: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
23: * Clara, CA 95054 or visit www.sun.com if you need additional
24: * information or have any questions.
25: */
26:
27: package javax.microedition.lcdui;
28:
29: /**
30: * Implementation class for <code>TickerLF</code> interface.
31: */
32: class TickerLFImpl implements TickerLF {
33:
34: /**
35: * Constructs a new <code>TickerLFImpl</code> object for a given
36: * <code>Ticker</code>.
37: *
38: * @param ticker <code>Ticker</code> object for which L&F has
39: * to be created
40: */
41: TickerLFImpl(Ticker ticker) {
42: this .ticker = ticker;
43: }
44:
45: /**
46: * This is needed in order to delegate the string setting to
47: * <code>DisplayableLFImpl</code>.
48: *
49: * @param owner the last <code>Displayable</code> this ticker was set to
50: */
51: public void lSetOwner(DisplayableLF owner) {
52: this .owner = (DisplayableLFImpl) owner;
53: }
54:
55: /**
56: * Change the string set to this ticker.
57: *
58: * @param str string to set on this ticker.
59: */
60: public void lSetString(String str) {
61:
62: // this method should have no effect if this ticker is not owned
63: // by the current displayable. This is checked by DisplayableLFImpl
64:
65: if (owner != null) {
66: owner.tickerTextChanged(ticker);
67: }
68: }
69:
70: /**
71: * <code>Ticker</code> object that corresponds to this Look & Feel
72: * object.
73: */
74: private Ticker ticker;
75:
76: /** The last <code>Displayable</code> this ticker was set to. */
77: private DisplayableLFImpl owner = null;
78: }
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