1 ////////////////////////////////////////////////////////////////////////////////
2 // MillScript: an Open Spice interpreter and batch website creation tool
3 // Copyright (C) 2001-2005 Open World Ltd
4 //
5 // This file is part of MillScript.
6 //
7 // MillScript is free software; you can redistribute it and/or modify it under
8 // the terms of the GNU General Public License as published by the Free
9 // Software Foundation; either version 2 of the License, or (at your option)
10 // any later version.
11 //
12 // MillScript 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 with
18 // MillScript; if not, write to the Free Software Foundation, Inc., 59 Temple
19 // Place, Suite 330, Boston, MA 02111-1307 USA
20 ////////////////////////////////////////////////////////////////////////////////
21 package org.millscript.millscript.loaders;
22
23 import org.millscript.commons.vfs.VFile;
24 import org.millscript.millscript.alert.Alerts;
25
26 import java.awt.Font;
27 import java.awt.FontFormatException;
28 import java.io.IOException;
29
30 /**
31 * TrueType font loader. This will allow you to load custom fonts for drawing
32 * on images, or creating PDFs.
33 */
34 public class TTFLoader extends ValueLoader {
35
36 /**
37 * @see org.millscript.millscript.loaders.Loader#loadValue()
38 */
39 @Override
40 public Object loadValue() throws IOException {
41 if ( this.entry instanceof VFile && this.entry.exists() ) {
42 try {
43 // Return a new font object
44 return Font.createFont( Font.TRUETYPE_FONT, ((VFile) this.entry).getInputStream() );
45 } catch ( IllegalArgumentException ex ) {
46 // This should not happen in practice, unless we haven't been
47 // testing our code...
48 throw(
49 Alerts.fault(
50 "Only TrueType fonts can be loaded"
51 ).mishap()
52 );
53 } catch ( FontFormatException ex ) {
54 // The font is invalid
55 throw(
56 Alerts.compile(
57 "Cannot load requested font",
58 "Font file contains invalid data"
59 ).setParentThrowable( ex ).mishap()
60 );
61 }
62 } else {
63 throw(
64 Alerts.compile(
65 "Inventory entry is not a file",
66 "TrueType font loader can only be used to load files"
67 ).culprit( "entry", this.entry ).mishap()
68 );
69 }
70 }
71
72 }