01: /**
02: * ===========================================
03: * JFreeReport : a free Java reporting library
04: * ===========================================
05: *
06: * Project Info: http://reporting.pentaho.org/
07: *
08: * (C) Copyright 2001-2007, by Object Refinery Ltd, Pentaho Corporation and Contributors.
09: *
10: * This library is free software; you can redistribute it and/or modify it under the terms
11: * of the GNU Lesser General Public License as published by the Free Software Foundation;
12: * either version 2.1 of the License, or (at your option) any later version.
13: *
14: * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
15: * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16: * See the GNU Lesser General Public License for more details.
17: *
18: * You should have received a copy of the GNU Lesser General Public License along with this
19: * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
20: * Boston, MA 02111-1307, USA.
21: *
22: * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
23: * in the United States and other countries.]
24: *
25: * ------------
26: * RenderableTextFactory.java
27: * ------------
28: * (C) Copyright 2001-2007, by Object Refinery Ltd, Pentaho Corporation and Contributors.
29: */package org.jfree.report.layout.text;
30:
31: import org.jfree.report.layout.model.RenderNode;
32: import org.jfree.report.style.StyleSheet;
33:
34: /**
35: * Problem: Text may span more than one chunk, and text may influence the break behaviour of the next chunk.
36: * <p/>
37: * Possible solution: TextFactory does not return the complete text. It returns the text up to the last whitespace
38: * encountered and returns the text chunk only if either finishText has been called or some more text comes in. The ugly
39: * sideffect: Text may result in more than one renderable text chunk returned.
40: * <p/>
41: * If we return lines (broken by an LineBreak-occurence) we can safe us a lot of trouble later.
42: *
43: * @author Thomas Morgner
44: */
45: public interface RenderableTextFactory {
46: /**
47: * The text is given as CodePoints.
48: *
49: * @param text
50: * @return
51: */
52: public RenderNode[] createText(final int[] text, final int offset,
53: final int length, final StyleSheet layoutContext);
54:
55: public RenderNode[] finishText();
56:
57: public void startText();
58: }
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