不同工作表中的 LibreOffice 参考单元格、工作表名称和空格 - C 编程语言

在 LibreOffice 中，您可以在一个电子表格中使用其他电子表格的值。这在处理数据量较大的情况下非常有用。在 C 编程语言中，您可以使用 LibreOffice 的 API 来实现此功能。

获取工作表中的值

要从另一个工作表中获取值，您需要使用 com.sun.star.sheet.XSpreadsheet 接口。您可以使用 com.sun.star.sheet.XSpreadsheet.getCellByPosition 方法来获取单元格的值。获取单元格值的示例代码如下：

#include <stdio.h>
#include <stdlib.h>
#include "sal/main.h"
#include "osl/file.hxx"
#include "com/sun/star/bridge/XUnoUrlResolver.hpp"
#include "com/sun/star/frame/XComponentLoader.hpp"
#include "com/sun/star/sheet/XSpreadsheet.hpp"
#include "com/sun/star/beans/XPropertySet.hpp"
#include "com/sun/star/table/XCell.hpp"
#include "cppuhelper/bootstrap.hxx"

using namespace com::sun::star::bridge;
using namespace com::sun::star::frame;
using namespace com::sun::star::sheet;
using namespace com::sun::star::beans;
using namespace com::sun::star::table;
using namespace rtl;
using namespace cppu;

void main() {
    // initialize the bootstrap environment
    Bootstrap::initialize();
    
    try {
        // create an UnoUrlResolver
        Reference<XUnoUrlResolver> resolver = new XUnoUrlResolver;
        
        // resolve the URL of the document
        OUString url = OUString::createFromAscii("file:///path/to/your/document.ods");
        Reference<XInterface> object = resolver->resolve(url);
        
        // query the XComponentLoader interface
        Reference<XComponentLoader> loader(object, UNO_QUERY_THROW);
        
        // load the document
        Reference<XComponent> document = loader->loadComponentFromURL(url, OUString::createFromAscii("_blank"), 0,
                                                                       Sequence<PropertyValue>());
        
        // query the XSpreadsheet interface
        Reference<XSpreadsheet> sheet(document->getSheets()->getByName(OUString::createFromAscii("Sheet1")),
                                      UNO_QUERY_THROW);
        
        // get the value of cell A1 in Sheet2
        Any value = sheet->getCellByPosition(0, 0)->getValue();
        
        // output the value
        printf("%d\n", *(int*)value.getValue());
    } catch (Exception& ex) {
        // handle exception
    }
}

获取工作表名称

要获取工作表的名称，您可以使用 com.sun.star.sheet.XSpreadsheetDocument 接口。使用 getName 方法即可获取该工作表的名称。获取工作表名称的示例代码如下：

#include <stdio.h>
#include <stdlib.h>
#include "sal/main.h"
#include "osl/file.hxx"
#include "com/sun/star/bridge/XUnoUrlResolver.hpp"
#include "com/sun/star/frame/XComponentLoader.hpp"
#include "com/sun/star/sheet/XSpreadsheetDocument.hpp"
#include "cppuhelper/bootstrap.hxx"

using namespace com::sun::star::bridge;
using namespace com::sun::star::frame;
using namespace com::sun::star::sheet;
using namespace rtl;
using namespace cppu;

void main() {
    // initialize the bootstrap environment
    Bootstrap::initialize();
    
    try {
        // create an UnoUrlResolver
        Reference<XUnoUrlResolver> resolver = new XUnoUrlResolver;
        
        // resolve the URL of the document
        OUString url = OUString::createFromAscii("file:///path/to/your/document.ods");
        Reference<XInterface> object = resolver->resolve(url);
        
        // query the XComponentLoader interface
        Reference<XComponentLoader> loader(object, UNO_QUERY_THROW);
        
        // load the document
        Reference<XComponent> document = loader->loadComponentFromURL(url, OUString::createFromAscii("_blank"), 0,
                                                                       Sequence<PropertyValue>());
        
        // query the XSpreadsheetDocument interface
        Reference<XSpreadsheetDocument> spreadsheet(document, UNO_QUERY_THROW);
        
        // get the name of the sheet
        OUString sheetName = spreadsheet->getSheets()->getElementNames()[0];
        
        // output the sheet name
        printf("%s\n", OUStringToOString(sheetName, RTL_TEXTENCODING_UTF8).getStr());
    } catch (Exception& ex) {
        // handle exception
    }
}

在单元格中使用空格

要在单元格中使用空格，您可以使用 com.sun.star.table.XCell 接口。使用 setString 方法并将空格的字符串传递给该方法即可在单元格中插入空格。插入空格的示例代码如下：

#include <stdio.h>
#include <stdlib.h>
#include "sal/main.h"
#include "osl/file.hxx"
#include "com/sun/star/bridge/XUnoUrlResolver.hpp"
#include "com/sun/star/frame/XComponentLoader.hpp"
#include "com/sun/star/sheet/XSpreadsheet.hpp"
#include "com/sun/star/beans/XPropertySet.hpp"
#include "com/sun/star/table/XCell.hpp"
#include "cppuhelper/bootstrap.hxx"

using namespace com::sun::star::bridge;
using namespace com::sun::star::frame;
using namespace com::sun::star::sheet;
using namespace com::sun::star::beans;
using namespace com::sun::star::table;
using namespace rtl;
using namespace cppu;

void main() {
    // initialize the bootstrap environment
    Bootstrap::initialize();
    
    try {
        // create an UnoUrlResolver
        Reference<XUnoUrlResolver> resolver = new XUnoUrlResolver;
        
        // resolve the URL of the document
        OUString url = OUString::createFromAscii("file:///path/to/your/document.ods");
        Reference<XInterface> object = resolver->resolve(url);
        
        // query the XComponentLoader interface
        Reference<XComponentLoader> loader(object, UNO_QUERY_THROW);
        
        // load the document
        Reference<XComponent> document = loader->loadComponentFromURL(url, OUString::createFromAscii("_blank"), 0,
                                                                       Sequence<PropertyValue>());
        
        // query the XSpreadsheet interface
        Reference<XSpreadsheet> sheet(document->getSheets()->getByName(OUString::createFromAscii("Sheet1")),
                                      UNO_QUERY_THROW);
        
        // get the cell A1 in Sheet2
        Reference<XCell> cell = sheet->getCellByPosition(0, 0);
        
        // set the value of the cell to a string containing a space
        cell->setString(OUString::createFromAscii(" "));
    } catch (Exception& ex) {
        // handle exception
    }
}

以上是在 C 编程语言中使用 LibreOffice API 获取不同工作表中的单元格、工作表名称和空格的示例代码。