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authorAdrian Cumiskey <acumiskey@apache.org>2008-10-27 11:11:31 +0000
committerAdrian Cumiskey <acumiskey@apache.org>2008-10-27 11:11:31 +0000
commit17bc8aa0870e3d6043ea2865e44fc2433dd5b36b (patch)
tree30bd6ed354f94bcf2ed696bcd450c9398378a250 /src/java/org/apache/fop/afp/modca/PresentationTextObject.java
parent00de9a8fc1a67e93c512ba67451d1e8815d57b39 (diff)
downloadxmlgraphics-fop-17bc8aa0870e3d6043ea2865e44fc2433dd5b36b.tar.gz
xmlgraphics-fop-17bc8aa0870e3d6043ea2865e44fc2433dd5b36b.zip
All AFP library classes without Renderer dependencies moved from org.apache.fop.renderer.afp.* to org.apache.fop.afp.*.
AbstractNamedAFPObject now truncates names to the last x characters of the name string instead of the first x (where x is the name length of the structured field). Removed redundant package org.apache.fop.store. git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_AFPGOCAResources@708134 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'src/java/org/apache/fop/afp/modca/PresentationTextObject.java')
-rw-r--r--src/java/org/apache/fop/afp/modca/PresentationTextObject.java169
1 files changed, 169 insertions, 0 deletions
diff --git a/src/java/org/apache/fop/afp/modca/PresentationTextObject.java b/src/java/org/apache/fop/afp/modca/PresentationTextObject.java
new file mode 100644
index 000000000..070a33a84
--- /dev/null
+++ b/src/java/org/apache/fop/afp/modca/PresentationTextObject.java
@@ -0,0 +1,169 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* $Id$ */
+
+package org.apache.fop.afp.modca;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.List;
+
+import org.apache.fop.afp.AFPLineDataInfo;
+import org.apache.fop.afp.AFPTextDataInfo;
+
+/**
+ * The Presentation Text object is the data object used in document processing
+ * environments for representing text which has been prepared for presentation.
+ * Text, as used here, means an ordered string of characters, such as graphic
+ * symbols, numbers, and letters, that are suitable for the specific purpose of
+ * representing coherent information. Text which has been prepared for
+ * presentation has been reduced to a primitive form through explicit
+ * specification of the characters and their placement in the presentation
+ * space. Control sequences which designate specific control functions may be
+ * embedded within the text. These functions extend the primitive form by
+ * applying specific characteristics to the text when it is presented. The
+ * collection of the graphic characters and control codes is called Presentation
+ * Text, and the object that contains the Presentation Text is called the
+ * PresentationText object.
+ */
+public class PresentationTextObject extends AbstractNamedAFPObject {
+
+ /**
+ * The current presentation text data
+ */
+ private PresentationTextData currentPresentationTextData = null;
+
+ /**
+ * The presentation text data list
+ */
+ private List/*<PresentationTextData>*/ presentationTextDataList = null;
+
+ /**
+ * Construct a new PresentationTextObject for the specified name argument,
+ * the name should be an 8 character identifier.
+ *
+ * @param name the name of this presentation object
+ */
+ public PresentationTextObject(String name) {
+ super(name);
+ }
+
+ /**
+ * Create the presentation text data for the byte array of data.
+ *
+ * @param textDataInfo
+ * The afp text data
+ */
+ public void createTextData(AFPTextDataInfo textDataInfo) {
+ if (currentPresentationTextData == null) {
+ startPresentationTextData();
+ }
+ try {
+ currentPresentationTextData.createTextData(textDataInfo);
+ } catch (MaximumSizeExceededException msee) {
+ endPresentationTextData();
+ createTextData(textDataInfo);
+ }
+ }
+
+ /**
+ * Drawing of lines using the starting and ending coordinates, thickness and
+ * orientation arguments.
+ *
+ * @param lineDataInfo the line data information.
+ */
+ public void createLineData(AFPLineDataInfo lineDataInfo) {
+ if (currentPresentationTextData == null) {
+ startPresentationTextData();
+ }
+ try {
+ currentPresentationTextData.createLineData(lineDataInfo);
+ } catch (MaximumSizeExceededException msee) {
+ endPresentationTextData();
+ createLineData(lineDataInfo);
+ }
+ }
+
+ /**
+ * Helper method to mark the start of the presentation text data
+ */
+ private void startPresentationTextData() {
+ if (presentationTextDataList == null) {
+ presentationTextDataList = new java.util.ArrayList/*<PresentationTextData>*/();
+ }
+ if (presentationTextDataList.size() == 0) {
+ currentPresentationTextData = new PresentationTextData(true);
+ } else {
+ currentPresentationTextData = new PresentationTextData();
+ }
+ presentationTextDataList.add(currentPresentationTextData);
+ }
+
+ /**
+ * Helper method to mark the end of the presentation text data
+ */
+ private void endPresentationTextData() {
+ this.currentPresentationTextData = null;
+ }
+
+ /** {@inheritDoc} */
+ protected void writeStart(OutputStream os) throws IOException {
+ byte[] data = new byte[17];
+ copySF(data, Type.BEGIN, Category.PRESENTATION_TEXT);
+ os.write(data);
+ }
+
+ /** {@inheritDoc} */
+ protected void writeContent(OutputStream os) throws IOException {
+ writeObjects(this.presentationTextDataList, os);
+ }
+
+ /** {@inheritDoc} */
+ protected void writeEnd(OutputStream os) throws IOException {
+ byte[] data = new byte[17];
+ copySF(data, Type.END, Category.PRESENTATION_TEXT);
+ os.write(data);
+ }
+
+ /**
+ * A control sequence is a sequence of bytes that specifies a control
+ * function. A control sequence consists of a control sequence introducer
+ * and zero or more parameters. The control sequence can extend multiple
+ * presentation text data objects, but must eventually be terminated. This
+ * method terminates the control sequence.
+ */
+ public void endControlSequence() {
+ if (currentPresentationTextData == null) {
+ startPresentationTextData();
+ }
+ try {
+ currentPresentationTextData.endControlSequence();
+ } catch (MaximumSizeExceededException msee) {
+ endPresentationTextData();
+ endControlSequence();
+ }
+ }
+
+ /** {@inheritDoc} */
+ public String toString() {
+ if (presentationTextDataList != null) {
+ return presentationTextDataList.toString();
+ }
+ return null;
+ }
+}