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: * ApplyCommitStep.java
27: * ------------
28: * (C) Copyright 2001-2007, by Object Refinery Ltd, Pentaho Corporation and Contributors.
29: */package org.jfree.report.layout.process;
30:
31: import org.jfree.report.layout.model.BlockRenderBox;
32: import org.jfree.report.layout.model.CanvasRenderBox;
33: import org.jfree.report.layout.model.InlineRenderBox;
34: import org.jfree.report.layout.model.LogicalPageBox;
35: import org.jfree.report.layout.model.ParagraphRenderBox;
36: import org.jfree.report.layout.model.RenderBox;
37:
38: /**
39: * Applies the createRollbackInformation-marker to all closed boxes and applies the pending marker to all currently open boxes.
40: * During a roll-back, we can use these markers to identify boxes that have been added since the last createRollbackInformation
41: * to remove them from the model.
42: *
43: * @author Thomas Morgner
44: */
45: public class ApplyCommitStep extends IterateStructuralProcessStep {
46: public ApplyCommitStep() {
47: }
48:
49: public void compute(final LogicalPageBox pageBox) {
50: startProcessing(pageBox);
51: }
52:
53: protected void processParagraphChilds(final ParagraphRenderBox box) {
54: processBoxChilds(box);
55: }
56:
57: private boolean processBox(final RenderBox box) {
58: if (box.isCommited()) {
59: return false;
60: }
61:
62: box.commitApplyMark();
63: return true;
64: }
65:
66: protected boolean startCanvasBox(final CanvasRenderBox box) {
67: return processBox(box);
68: }
69:
70: protected boolean startBlockBox(final BlockRenderBox box) {
71: return processBox(box);
72: }
73:
74: protected boolean startInlineBox(final InlineRenderBox box) {
75: return processBox(box);
76: }
77:
78: protected boolean startOtherBox(final RenderBox box) {
79: return processBox(box);
80: }
81: }
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