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start process of introducing an interface for Styles and Themes Tables

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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1836732 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
PJ Fanning 2018-07-26 14:18:13 +00:00
parent 577be83a1d
commit 2900fcf9af
7 changed files with 165 additions and 17 deletions
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3
src/examples/src/org/apache/poi/xssf/eventusermodel/XLSX2CSV.java
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@ -34,6 +34,7 @@ import org.apache.poi.ooxml.util.SAXHelper;
import org.apache.poi.xssf.eventusermodel.XSSFSheetXMLHandler.SheetContentsHandler;
import org.apache.poi.xssf.extractor.XSSFEventBasedExcelExtractor;
import org.apache.poi.xssf.model.SharedStrings;
import org.apache.poi.xssf.model.Styles;
import org.apache.poi.xssf.model.StylesTable;
import org.apache.poi.xssf.usermodel.XSSFComment;
import org.xml.sax.ContentHandler;
@ -180,7 +181,7 @@ public class XLSX2CSV {
* @throws SAXException if parsing the XML data fails.
*/
public void processSheet(
StylesTable styles,
Styles styles,
SharedStrings strings,
SheetContentsHandler sheetHandler,
InputStream sheetInputStream) throws IOException, SAXException {

13
src/ooxml/java/org/apache/poi/xssf/eventusermodel/XSSFSheetXMLHandler.java
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@ -27,10 +27,7 @@ import org.apache.poi.ss.usermodel.RichTextString;
import org.apache.poi.ss.util.CellAddress;
import org.apache.poi.util.POILogFactory;
import org.apache.poi.util.POILogger;
import org.apache.poi.xssf.model.Comments;
import org.apache.poi.xssf.model.CommentsTable;
import org.apache.poi.xssf.model.SharedStrings;
import org.apache.poi.xssf.model.StylesTable;
import org.apache.poi.xssf.model.*;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFComment;
import org.apache.poi.xssf.usermodel.XSSFRichTextString;
@ -63,7 +60,7 @@ public class XSSFSheetXMLHandler extends DefaultHandler {
/**
* Table with the styles used for formatting
*/
private StylesTable stylesTable;
private Styles stylesTable;
/**
* Table with cell comments
@ -117,7 +114,7 @@ public class XSSFSheetXMLHandler extends DefaultHandler {
* @param strings Table of shared strings
*/
public XSSFSheetXMLHandler(
StylesTable styles,
Styles styles,
CommentsTable comments,
SharedStrings strings,
SheetContentsHandler sheetContentsHandler,
@ -140,7 +137,7 @@ public class XSSFSheetXMLHandler extends DefaultHandler {
* @param strings Table of shared strings
*/
public XSSFSheetXMLHandler(
StylesTable styles,
Styles styles,
SharedStrings strings,
SheetContentsHandler sheetContentsHandler,
DataFormatter dataFormatter,
@ -155,7 +152,7 @@ public class XSSFSheetXMLHandler extends DefaultHandler {
* @param strings Table of shared strings
*/
public XSSFSheetXMLHandler(
StylesTable styles,
Styles styles,
SharedStrings strings,
SheetContentsHandler sheetContentsHandler,
boolean formulasNotResults) {

7
src/ooxml/java/org/apache/poi/xssf/extractor/XSSFEventBasedExcelExtractor.java
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@ -39,10 +39,7 @@ import org.apache.poi.xssf.eventusermodel.ReadOnlySharedStringsTable;
import org.apache.poi.xssf.eventusermodel.XSSFReader;
import org.apache.poi.xssf.eventusermodel.XSSFSheetXMLHandler;
import org.apache.poi.xssf.eventusermodel.XSSFSheetXMLHandler.SheetContentsHandler;
import org.apache.poi.xssf.model.Comments;
import org.apache.poi.xssf.model.CommentsTable;
import org.apache.poi.xssf.model.SharedStrings;
import org.apache.poi.xssf.model.StylesTable;
import org.apache.poi.xssf.model.*;
import org.apache.poi.xssf.usermodel.XSSFComment;
import org.apache.poi.xssf.usermodel.XSSFShape;
import org.apache.poi.xssf.usermodel.XSSFSimpleShape;
@ -232,7 +229,7 @@ public class XSSFEventBasedExcelExtractor extends POIXMLTextExtractor
*/
public void processSheet(
SheetContentsHandler sheetContentsExtractor,
StylesTable styles,
Styles styles,
CommentsTable comments,
SharedStrings strings,
InputStream sheetInputStream)

114
src/ooxml/java/org/apache/poi/xssf/model/Styles.java Normal file
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@ -0,0 +1,114 @@
package org.apache.poi.xssf.model;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFFont;
import org.apache.poi.xssf.usermodel.extensions.XSSFCellBorder;
import org.apache.poi.xssf.usermodel.extensions.XSSFCellFill;
public interface Styles {
/**
* Get number format string given its id
*
* @param fmtId number format id
* @return number format code
*/
String getNumberFormatAt(short fmtId);
/**
* Puts <code>fmt</code> in the numberFormats map if the format is not
* already in the the number format style table.
* Does nothing if <code>fmt</code> is already in number format style table.
*
* @param fmt the number format to add to number format style table
* @return the index of <code>fmt</code> in the number format style table
* @throws IllegalStateException if adding the number format to the styles table
* would exceed the max allowed.
*/
int putNumberFormat(String fmt);
/**
* Add a number format with a specific ID into the numberFormats map.
* If a format with the same ID already exists, overwrite the format code
* with <code>fmt</code>
* This may be used to override built-in number formats.
*
* @param index the number format ID
* @param fmt the number format code
*/
void putNumberFormat(short index, String fmt);
/**
* Remove a number format from the style table if it exists.
* All cell styles with this number format will be modified to use the default number format.
*
* @param index the number format id to remove
* @return true if the number format was removed
*/
boolean removeNumberFormat(short index);
/**
* Remove a number format from the style table if it exists
* All cell styles with this number format will be modified to use the default number format
*
* @param fmt the number format to remove
* @return true if the number format was removed
*/
boolean removeNumberFormat(String fmt);
XSSFFont getFontAt(int idx);
/**
* Records the given font in the font table.
* Will re-use an existing font index if this
* font matches another, EXCEPT if forced
* registration is requested.
* This allows people to create several fonts
* then customise them later.
* Note - End Users probably want to call
* {@link XSSFFont#registerTo(StylesTable)}
*/
int putFont(XSSFFont font, boolean forceRegistration);
/**
* Records the given font in the font table.
* Will re-use an existing font index if this
* font matches another.
*/
int putFont(XSSFFont font);
/**
*
* @param idx style index
* @return XSSFCellStyle or null if idx is out of bounds for xfs array
*/
XSSFCellStyle getStyleAt(int idx);
int putStyle(XSSFCellStyle style);
XSSFCellBorder getBorderAt(int idx);
/**
* Adds a border to the border style table if it isn't already in the style table
* Does nothing if border is already in borders style table
*
* @param border border to add
* @return the index of the added border
*/
int putBorder(XSSFCellBorder border);
XSSFCellFill getFillAt(int idx);
/**
* Adds a fill to the fill style table if it isn't already in the style table
* Does nothing if fill is already in fill style table
*
* @param fill fill to add
* @return the index of the added fill
*/
int putFill(XSSFCellFill fill);
int getNumCellStyles();
int getNumDataFormats();
}

20
src/ooxml/java/org/apache/poi/xssf/model/StylesTable.java
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@ -56,7 +56,7 @@ import org.openxmlformats.schemas.spreadsheetml.x2006.main.*;
/**
* Table of styles shared across all sheets in a workbook.
*/
public class StylesTable extends POIXMLDocumentPart {
public class StylesTable extends POIXMLDocumentPart implements Styles {
private final SortedMap<Short, String> numberFormats = new TreeMap<>();
private final List<XSSFFont> fonts = new ArrayList<>();
private final List<XSSFCellFill> fills = new ArrayList<>();
@ -261,6 +261,7 @@ public class StylesTable extends POIXMLDocumentPart {
* @param fmtId number format id
* @return number format code
*/
@Override
public String getNumberFormatAt(short fmtId) {
return numberFormats.get(fmtId);
}
@ -285,6 +286,7 @@ public class StylesTable extends POIXMLDocumentPart {
* @throws IllegalStateException if adding the number format to the styles table
* would exceed the {@link #MAXIMUM_NUMBER_OF_DATA_FORMATS} allowed.
*/
@Override
public int putNumberFormat(String fmt) {
// Check if number format already exists
if (numberFormats.containsValue(fmt)) {
@ -334,6 +336,7 @@ public class StylesTable extends POIXMLDocumentPart {
* @param index the number format ID
* @param fmt the number format code
*/
@Override
public void putNumberFormat(short index, String fmt) {
numberFormats.put(index, fmt);
}
@ -345,6 +348,7 @@ public class StylesTable extends POIXMLDocumentPart {
* @param index the number format id to remove
* @return true if the number format was removed
*/
@Override
public boolean removeNumberFormat(short index) {
String fmt = numberFormats.remove(index);
boolean removed = (fmt != null);
@ -366,11 +370,13 @@ public class StylesTable extends POIXMLDocumentPart {
* @param fmt the number format to remove
* @return true if the number format was removed
*/
@Override
public boolean removeNumberFormat(String fmt) {
short id = getNumberFormatId(fmt);
return removeNumberFormat(id);
}
@Override
public XSSFFont getFontAt(int idx) {
return fonts.get(idx);
}
@ -385,6 +391,7 @@ public class StylesTable extends POIXMLDocumentPart {
* Note - End Users probably want to call
* {@link XSSFFont#registerTo(StylesTable)}
*/
@Override
public int putFont(XSSFFont font, boolean forceRegistration) {
int idx = -1;
if(!forceRegistration) {
@ -399,6 +406,8 @@ public class StylesTable extends POIXMLDocumentPart {
fonts.add(font);
return idx;
}
@Override
public int putFont(XSSFFont font) {
return putFont(font, false);
}
@ -408,6 +417,7 @@ public class StylesTable extends POIXMLDocumentPart {
* @param idx style index
* @return XSSFCellStyle or null if idx is out of bounds for xfs array
*/
@Override
public XSSFCellStyle getStyleAt(int idx) {
int styleXfId = 0;
@ -422,6 +432,8 @@ public class StylesTable extends POIXMLDocumentPart {
return new XSSFCellStyle(idx, styleXfId, this, theme);
}
@Override
public int putStyle(XSSFCellStyle style) {
CTXf mainXF = style.getCoreXf();
@ -431,6 +443,7 @@ public class StylesTable extends POIXMLDocumentPart {
return xfs.indexOf(mainXF);
}
@Override
public XSSFCellBorder getBorderAt(int idx) {
return borders.get(idx);
}
@ -442,6 +455,7 @@ public class StylesTable extends POIXMLDocumentPart {
* @param border border to add
* @return the index of the added border
*/
@Override
public int putBorder(XSSFCellBorder border) {
int idx = borders.indexOf(border);
if (idx != -1) {
@ -452,6 +466,7 @@ public class StylesTable extends POIXMLDocumentPart {
return borders.size() - 1;
}
@Override
public XSSFCellFill getFillAt(int idx) {
return fills.get(idx);
}
@ -479,6 +494,7 @@ public class StylesTable extends POIXMLDocumentPart {
* @param fill fill to add
* @return the index of the added fill
*/
@Override
public int putFill(XSSFCellFill fill) {
int idx = fills.indexOf(fill);
if (idx != -1) {
@ -543,6 +559,7 @@ public class StylesTable extends POIXMLDocumentPart {
/**
* get the size of cell styles
*/
@Override
public int getNumCellStyles() {
// Each cell style has a unique xfs entry
// Several might share the same styleXfs entry
@ -552,6 +569,7 @@ public class StylesTable extends POIXMLDocumentPart {
/**
* @return number of data formats in the styles table
*/
@Override
public int getNumDataFormats() {
return numberFormats.size();
}

19
src/ooxml/java/org/apache/poi/xssf/model/Themes.java Normal file
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@ -0,0 +1,19 @@
package org.apache.poi.xssf.model;
import org.apache.poi.xssf.usermodel.XSSFColor;
public interface Themes {
/**
* Convert a theme "index" (as used by fonts etc) into a color.
* @param idx A theme "index"
* @return The mapped XSSFColor, or null if not mapped.
*/
XSSFColor getThemeColor(int idx);
/**
* If the colour is based on a theme, then inherit
* information (currently just colours) from it as
* required.
*/
void inheritFromThemeAsRequired(XSSFColor color);
}

4
src/ooxml/java/org/apache/poi/xssf/model/ThemesTable.java
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@ -34,7 +34,7 @@ import org.openxmlformats.schemas.drawingml.x2006.main.ThemeDocument;
* Class that represents theme of XLSX document. The theme includes specific
* colors and fonts.
*/
public class ThemesTable extends POIXMLDocumentPart {
public class ThemesTable extends POIXMLDocumentPart implements Themes {
public enum ThemeElement {
LT1(0, "Lt1"),
DK1(1,"Dk1"),
@ -110,6 +110,7 @@ public class ThemesTable extends POIXMLDocumentPart {
* @param idx A theme "index"
* @return The mapped XSSFColor, or null if not mapped.
*/
@Override
public XSSFColor getThemeColor(int idx) {
// Theme color references are NOT positional indices into the color scheme,
// i.e. these keys are NOT the same as the order in which theme colors appear
@ -150,6 +151,7 @@ public class ThemesTable extends POIXMLDocumentPart {
* information (currently just colours) from it as
* required.
*/
@Override
public void inheritFromThemeAsRequired(XSSFColor color) {
if(color == null) {
// Nothing for us to do