如何在LibreOffice Calc中使用PyUNO更改单元格边框的线宽？

如何解决如何在LibreOffice Calc中使用PyUNO更改单元格边框的线宽？

我正在编写一个Python脚本来自动调整LibreOffice Calc中的单元格边框。我想我知道我需要更改什么属性，但是当我为该属性分配新值时，该值不会更改。

例如，我编写了这段代码，将单个单元格的TopLine.linewidth从0更改为10。

package com.stackoverflow.questions;

import static org.apache.commons.io.FileUtils.forceDelete;
import static org.awaitility.Awaitility.await;
import static org.springframework.test.annotation.DirtiesContext.ClassMode.BEFORE_EACH_TEST_METHOD;

import com.stackoverflow.questions.service.DirectoryManagerService;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import org.apache.commons.io.FileUtils;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBoottest;
import org.springframework.core.io.ClassPathResource;
import org.springframework.integration.dsl.StandardIntegrationFlow;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.util.ReflectionTestUtils;

@SpringBoottest
public class MainFlowIntegrationTests {


  private static final String MOCK_FILE_DIR = "intFiles/";
  private static final String VALID_XML_MOCK_FILE = "valid01-student-01.xml";
  private static final String INVALID_XML_MOCK_FILE = "invalid02-student-02.xml";

  @Autowired
  private MessageChannel fileReaderChannel;

  @Autowired
  private StandardIntegrationFlow mainStudentIntegrationFlow;

  @Autowired
  private DirectoryManagerService directoryManagerService;

  private File queueDir;
  private File processed;
  private File error;

  @BeforeEach
  public void setup() throws IOException {
    createrequiredDirectories();
    moveFilesToQueueDir();
    injectProperties();
    mainStudentIntegrationFlow.start();
  }

  @AfterEach
  public void tearDown() throws IOException {
    mainStudentIntegrationFlow.stop();
    deleterequiredDirectories();
  }

  @Test
  public void readingFileAndMoveItToProcessedDir() throws IOException,InterruptedException {
    // When: the fileReaderChannel receives a valid XML file
    fileReaderChannel
        .send(MessageBuilder.withPayload(new File(queueDir,VALID_XML_MOCK_FILE)).build());

    // Then: the valid XML file should be sent to the processedDir
    await().until(() -> processed.list().length == 1);
  }

  @Test
  public void readingInvalidFileAndMoveItToErrorDir() throws IOException,InterruptedException {
    // When: the fileReaderChannel receives a invalid XML file
    fileReaderChannel
        .send(MessageBuilder.withPayload(new File(queueDir,INVALID_XML_MOCK_FILE)).build());

    // Then: the invalid XML file should be sent to the errorDir
    await().until(() -> error.list().length == 1);
  }

  private void injectProperties() {
    ReflectionTestUtils
        .setField(directoryManagerService,"errorDir",error.getAbsolutePath().concat("/"));
    ReflectionTestUtils
        .setField(directoryManagerService,"processedDir",processed.getAbsolutePath().concat("/"));
  }

  private void copyFilesToQueueDir() throws IOException {
    File intFiles = new ClassPathResource(MOCK_FILE_DIR).getFile();

    for (String filename : intFiles.list()) {
      FileUtils.copyFile(new File(intFiles,filename),new File(queueDir,filename));
    }
  }

  private void createrequiredDirectories() throws IOException {
    queueDir = Files.createTempDirectory("queueDir").toFile();
    processed = Files.createTempDirectory("processedDir").toFile();
    error = Files.createTempDirectory("errorDir").toFile();
  }

  private void deleterequiredDirectories() throws IOException {
    forceDelete(queueDir);
    forceDelete(processed);
    forceDelete(error);
  }

}

运行此代码后，我没有任何错误。并且我还确保我正在访问要修改的单元格。但是，此代码不会更改单元格的边框宽度。

我尝试通过在赋值前后打印值来进行一些调试：

# Access the current calc document
model = desktop.getCurrentComponent()
# Access the active sheet
active_sheet = model.CurrentController.ActiveSheet
# Get the cell and change the value of linewidth
cell = active_sheet.getCellByPosition(2,2)
cell.TableBorder2.TopLine.linewidth = 10

有人知道我在做什么错吗？

解决方法

您需要将单元格属性设置为更改的边框对象。来自https://ask.libreoffice.org/en/question/145885/border-macro-no-longer-works/：

aThinBorder = oRange.TopBorder2
aThinBorder.LineWidth = 1
oRange.TopBorder2 = aThinBorder

,

因此，在进行了大量研究之后，我发现至少三种更改边框设置的方法。因为花了我很多力气，所以我认为我应该把它们留在这里，以便将来其他人可能更容易找到答案。

在所有示例中，我将单个单元格的TopBorder的LineWidth设置为10。

方法1：使用getPropertyValue（）和setPropertyValue（）

cell = active_sheet.getCellByPosition(1,1)
border_prop = cell.getPropertyValue("TopBorder")
border_prop.LineWidth = 10
cell.setPropertyValue("TopBorder",border_prop)

方法2（源自Jim K的答案）

cell = active_sheet.getCellByPosition(1,1)
border_prop = cell.TopBorder2
border_prop.LineWidth = 10
cell.TopBorder2 = border_prop

方法3：使用BorderLine2结构

border_prop = uno.createUnoStruct("com.sun.star.table.BorderLine2")
border_prop.LineWidth = 10
cell = active_sheet.getCellByPosition(1,1)
cell.setPropertyValue("TopBorder",border_prop)