iText 7 – 单元格文本旋转

huangapple
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英文:

iText 7 - cell text rotation

问题

I am using iText 7 C# to build a pdf.
Here is my issue.. I am trying to add a date to the last row. Since I do not have much space available I am trying to rotate it vertically.. but the text is wrapping to the next line. Also, I wanted the text to be exactly center of cell (vertically and horizontally after the rotation). Can I have the rotation slightly fall to the right like '/'?

  1. // add signed date row
  2. table.AddCell(new Cell().Add(new Paragraph("")).SetWidth(UnitValue.CreatePercentValue(1 * 5)).SetBorder(Border.NO_BORDER));
  3. table.AddCell(new Cell().Add(new Paragraph("")).SetWidth(UnitValue.CreatePercentValue(7 * 5)).SetBorder(Border.NO_BORDER));
  4. index = 0;
  5. foreach (var month in months)
  6. {
  7.     var dateCell = new Cell().SetWidth(UnitValue.CreatePercentValue(1 * 5))
  8.                             .Add(new Paragraph("3/5/23")).SetFontSize(8);
  9.     dateCell.SetRotationAngle(Math.PI/2);
  10.     table.AddCell(dateCell);
  11.     index++;
  12.  }

iText 7 – 单元格文本旋转

英文:

I am using iText 7 C# to build a pdf.
Here is my issue.. I am trying to add a date to the last row. Since I do not have much space available I am trying to rotate it vertically.. but the text is wrapping to the next line. Also, I wanted the text to be exactly center of cell (vertically and horizontally after the rotation). Can I have the rotation slightly fall to the right like '/'?

  1. // add signed date row
  2. table.AddCell(new Cell().Add(new Paragraph("")).SetWidth(UnitValue.CreatePercentValue(1 * 5)).SetBorder(Border.NO_BORDER));
  3. table.AddCell(new Cell().Add(new Paragraph("")).SetWidth(UnitValue.CreatePercentValue(7 * 5)).SetBorder(Border.NO_BORDER));
  4. index = 0;
  5. foreach (var month in months)
  6. {
  7.     var dateCell = new Cell().SetWidth(UnitValue.CreatePercentValue(1 * 5))
  8.                             .Add(new Paragraph("3/5/23")).SetFontSize(8);
  9.     dateCell.SetRotationAngle(Math.PI/2);
  10.     table.AddCell(dateCell);
  11.     index++;
  12.  }

iText 7 – 单元格文本旋转

答案1

得分: 1

这应该可以胜任工作，包括TextAlignment和防止换行的设置。

  1. var dateCell = new Cell().SetWidth(UnitValue.CreatePercentValue(1 * 5))
  2.         .SetHeight(UnitValue.CreatePercentValue(30)) // 根据需要调整单元格高度
  3.         .SetTextAlignment(TextAlignment.CENTER) // 将文本对齐方式设置为居中
  4.         .SetPaddingBottom(10) // 根据需要调整底部填充
  5.         .Add(new Paragraph("3/5/23")).SetFontSize(8);
  7. // 调整旋转角度使其稍微向右倾斜
  8. dateCell.SetRotationAngle(Math.PI / 4);
  10. // 从注释中的替代方法
  11. var paragraph = new Paragraph("3/5/23");
  13. // 调整旋转角度使其稍微向右倾斜
  14. paragraph.SetRotationAngle(Math.PI / 4);
  16. var dateCell = new Cell().SetWidth(UnitValue.CreatePercentValue(1 * 5))
  17.         .SetHeight(UnitValue.CreatePercentValue(30)) // 根据需要调整单元格高度
  18.         .SetTextAlignment(TextAlignment.CENTER) // 将文本对齐方式设置为居中
  19.         .SetPaddingBottom(10) // 根据需要调整底部填充
  20.         .Add(paragraph).SetFontSize(8);

希望这对你有所帮助！如果有任何其他问题，请随时提出。

英文:

This should do the job, including the TextAlignment and preventing of word wrap

  1. var dateCell = new Cell().SetWidth(UnitValue.CreatePercentValue(1 * 5))
  2.         .SetHeight(UnitValue.CreatePercentValue(30)) // Adjust the cell height as needed
  3.         .SetTextAlignment(TextAlignment.CENTER) // Set text alignment to center
  4.         .SetPaddingBottom(10) // Adjust the bottom padding as needed
  5.         .Add(new Paragraph("3/5/23")).SetFontSize(8);
  7.     // Adjust rotation angle to make it fall slightly to the right
  8.     dateCell.SetRotationAngle(Math.PI / 4);

Alternative from comment

  1. var paragraph = new Paragraph("3/5/23");
  3. // Adjust rotation angle to make it fall slightly to the right    
  4. paragraph.SetRotationAngle(Math.PI / 4);
  6. var dateCell = new Cell().SetWidth(UnitValue.CreatePercentValue(1 * 5))
  7.         .SetHeight(UnitValue.CreatePercentValue(30)) // Adjust the cell height as needed
  8.         .SetTextAlignment(TextAlignment.CENTER) // Set text alignment to center
  9.         .SetPaddingBottom(10) // Adjust the bottom padding as needed
  10.         .Add(paragraph).SetFontSize(8);

huangapple
  • 本文由 发表于 2023年5月28日 17:54:23
  • 转载请务必保留本文链接：https://go.coder-hub.com/76350886.html
  • c#
  • itext7
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