01: /*
02: * ProGuard -- shrinking, optimization, obfuscation, and preverification
03: * of Java bytecode.
04: *
05: * Copyright (c) 2002-2007 Eric Lafortune (eric@graphics.cornell.edu)
06: *
07: * This program is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU General Public License as published by the Free
09: * Software Foundation; either version 2 of the License, or (at your option)
10: * any later version.
11: *
12: * This program is distributed in the hope that it will be useful, but WITHOUT
13: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15: * more details.
16: *
17: * You should have received a copy of the GNU General Public License along
18: * with this program; if not, write to the Free Software Foundation, Inc.,
19: * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20: */
21: package proguard.gui.splash;
22:
23: import java.awt.*;
24:
25: /**
26: * This VariableFont varies in size with respect to its Timing.
27: *
28: * @author Eric Lafortune
29: */
30: public class VariableSizeFont implements VariableFont {
31: private final Font font;
32: private final VariableDouble size;
33:
34: private float cachedSize = -1.0f;
35: private Font cachedFont;
36:
37: /**
38: * Creates a new VariableSizeFont
39: * @param font the base font.
40: * @param size the variable size of the font.
41: */
42: public VariableSizeFont(Font font, VariableDouble size) {
43: this .font = font;
44: this .size = size;
45: }
46:
47: // Implementation for VariableFont.
48:
49: public Font getFont(long time) {
50: float s = (float) size.getDouble(time);
51:
52: if (s != cachedSize) {
53: cachedSize = s;
54: cachedFont = font.deriveFont((float) s);
55: }
56:
57: return cachedFont;
58: }
59: }
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