Move the SharedStringsTable to a more generic package, and make a start on the styles table

git-svn-id: https://svn.apache.org/repos/asf/poi/branches/ooxml@637624 13f79535-47bb-0310-9956-ffa450edef68

src/ooxml/java/org/apache/poi/xssf/model/SharedStringsTable.java

@@ -15,7 +15,7 @@
    limitations under the License.
 ==================================================================== */
 
-package org.apache.poi.xssf.strings;
+package org.apache.poi.xssf.model;
 
 import java.io.IOException;
 import java.io.InputStream;

src/ooxml/java/org/apache/poi/xssf/model/StylesTable.java

@@ -0,0 +1,156 @@
+/* ====================================================================
+   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.
+==================================================================== */
+
+package org.apache.poi.xssf.model;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.LinkedList;
+
+import org.apache.poi.ss.usermodel.SharedStringSource;
+import org.apache.xmlbeans.XmlException;
+import org.apache.xmlbeans.XmlOptions;
+import org.openxml4j.opc.PackagePart;
+import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTBorder;
+import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTFill;
+import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTFont;
+import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTNumFmt;
+import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTNumFmts;
+import org.openxmlformats.schemas.spreadsheetml.x2006.main.StyleSheetDocument;;
+
+
+/**
+ * Table of styles shared across all sheets in a workbook.
+ * 
+ * FIXME: I don't like having a dependency on PackagePart (from OpenXML4J) in model classes.
+ * I'd rather let Workbook keep track of all part-document relationships and keep all other
+ * classes clean. -- Ugo
+ * 
+ * @version $Id: SharedStringsTable.java 612495 2008-01-16 16:08:22Z ugo $
+ */
+public class StylesTable {
+    private final LinkedList<String> numberFormats = new LinkedList<String>();
+    private final LinkedList<CTFont> fonts = new LinkedList<CTFont>();
+    private final LinkedList<CTFill> fills = new LinkedList<CTFill>();
+    private final LinkedList<CTBorder> borders = new LinkedList<CTBorder>();
+    
+    private PackagePart part;
+    private StyleSheetDocument doc;
+   
+    /**
+     * Create a new StylesTable by reading it from a PackagePart.
+     * 
+     * @param part The PackagePart to read.
+     * @throws IOException if an error occurs while reading.
+     */
+    public StylesTable(PackagePart part) throws IOException {
+        this.part = part;
+        InputStream is = part.getInputStream();
+        try {
+            readFrom(is);
+        } finally {
+            if (is != null) is.close();
+        }
+    }
+
+    /**
+     * Read this shared styles table from an XML file.
+     * 
+     * @param is The input stream containing the XML document.
+     * @throws IOException if an error occurs while reading.
+     */
+    public void readFrom(InputStream is) throws IOException {
+        try {
+        	doc = StyleSheetDocument.Factory.parse(is);
+        	
+        	// Grab all the different bits we care about
+        	for (CTNumFmt nfmt : doc.getStyleSheet().getNumFmts().getNumFmtArray()) {
+        		numberFormats.add(nfmt.getFormatCode());
+        	}
+        	for (CTFont font : doc.getStyleSheet().getFonts().getFontArray()) {
+        		fonts.add(font);
+        	}
+        	for (CTFill fill : doc.getStyleSheet().getFills().getFillArray()) {
+        		fills.add(fill);
+        	}
+        	for (CTBorder border : doc.getStyleSheet().getBorders().getBorderArray()) {
+        		borders.add(border);
+        	}
+        } catch (XmlException e) {
+            throw new IOException(e.getLocalizedMessage());
+        }
+    }
+
+    public String getNumberFormatAt(int idx) {
+        return numberFormats.get(idx);
+    }
+
+    public synchronized int putNumberFormat(String fmt) {
+        if (numberFormats.contains(fmt)) {
+            return numberFormats.indexOf(fmt);
+        }
+        numberFormats.add(fmt);
+        return numberFormats.size() - 1;
+    }
+
+    /**
+     * Save this table to its own PackagePart.
+     * 
+     * @throws IOException if an error occurs while writing.
+     */
+    public void save() throws IOException {
+        OutputStream out = this.part.getOutputStream();
+        try {
+            writeTo(out);
+        } finally {
+            out.close();
+        }
+    }
+
+    /**
+     * Write this table out as XML.
+     * 
+     * @param out The stream to write to.
+     * @throws IOException if an error occurs while writing.
+     */
+    public void writeTo(OutputStream out) throws IOException {
+        XmlOptions options = new XmlOptions();
+        options.setSaveOuter();
+        
+        // Work on the current one
+        // Need to do this, as we don't handle
+        //  all the possible entries yet
+
+    	// Formats
+    	CTNumFmts formats = CTNumFmts.Factory.newInstance(); 
+    	formats.setCount(numberFormats.size());
+    	for (String fmt : numberFormats) {
+    		formats.addNewNumFmt().setFormatCode(fmt);
+    	}
+    	doc.getStyleSheet().setNumFmts(formats);
+    	
+    	// Fonts
+    	
+    	// Fills
+    	
+    	// Borders
+    	
+        // Save
+        doc.save(out);
+    }
+}

src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFWorkbook.java

@@ -38,7 +38,7 @@ import org.apache.poi.ss.usermodel.Sheet;
 import org.apache.poi.ss.usermodel.Workbook;
 import org.apache.poi.util.POILogFactory;
 import org.apache.poi.util.POILogger;
-import org.apache.poi.xssf.strings.SharedStringsTable;
+import org.apache.poi.xssf.model.SharedStringsTable;
 import org.apache.xmlbeans.XmlException;
 import org.apache.xmlbeans.XmlObject;
 import org.apache.xmlbeans.XmlOptions;