Qt4/PyQt4 - 无法为 QTextDocument 设置默认字体 [英] Qt4/PyQt4 - Can not set the default font for QTextDocument

问题描述

我的代码是这样的:

from PyQt4 import QtGui

doc = QtGui.QTextDocument()
d_font = QtGui.QFont('Times New Roman')
doc.setDefaultFont(d_font)

cur = QtGui.QTextCursor(doc)
cur.insertText('sample text')

writer = QtGui.QTextDocumentWriter()
writer.setFormat(writer.supportedDocumentFormats()[1])
writer.setFileName('CV')
writer.write(doc)

输出中的示例文本"在我的电脑上仍然是Sans"，而不是Times New Roman".我已经确保我的电脑有Times New Roman"字体.我怀疑这是一个错误.我'm 使用 PyQt v4.9.5.

The 'sample text' in the output is still 'Sans' on my computer rather than "Times New Roman'. I have made sure my computer has 'Times New Roman' font. I suspect this is a bug. I'm using PyQt v4.9.5.

我使用的是 Ubuntu 12.04.我很确定 PyQt4 可以找到字体，因为以下代码有效:

I'm using Ubuntu 12.04. I'm quite sure that PyQt4 can find the font, because the following code works:

d_font = QFont('Times New Roman')
char_fmt = QTextCharFormat()
char_fmt.setFont(d_font)
cur.insertText('Times New Roman', char_fmt)

<小时>

以 odt/odt 格式保存时，似乎并非所有格式都受支持，但在打印为 pdf 时一切正常.

---

It appears that not all formating is supported when saving in odt/odt format, but everything works as expected when printing to a pdf.

from PyQt4.QtGui import *
import sys

doc = QTextDocument()
cur = QTextCursor(doc)

d_font = QFont('Times New Roman')
doc.setDefaultFont(d_font)

table_fmt = QTextTableFormat()
table_fmt.setColumnWidthConstraints([
    QTextLength(QTextLength.PercentageLength, 30),
    QTextLength(QTextLength.PercentageLength, 70)
    ])
table = cur.insertTable(5,2, table_fmt)
cur.insertText('sample text 1')
cur.movePosition(cur.NextCell)
cur.insertText('sample text 2')

# Print to a pdf file
# QPrinter: Must construct a QApplication before a QPaintDevice
app = QApplication(sys.argv)
printer = QPrinter(QPrinter.HighResolution)
printer.setOutputFormat(QPrinter.PdfFormat)
printer.setOutputFileName('sample.pdf')

# Save to file
writer = QTextDocumentWriter()
writer.setFormat(writer.supportedDocumentFormats()[1])
writer.setFileName('sample.odt')
writer.write(doc)

setDefaultfonts 和 setColumnWidthConstraints 影响 sample.pdf，但不影响 sample.odt.

setDefaultfonts and setColumnWidthConstraints affect sample.pdf, but not sample.odt.

推荐答案

我可以在使用 PyQt4.8.5 的 Ubuntu Oneiric 机器上看到相同的行为.我不认为这是一个错误.书写文本的字体取决于用于书写文本的光标字体.

I can see the same behavior on my Ubuntu Oneiric box with PyQt4.8.5. I don't think it is a bug. The font of the written text depends on the font of the cursor used to write the text.

以下应该对您有用:

from PyQt4 import QtGui

doc = QtGui.QTextDocument()
cur = QtGui.QTextCursor(doc)

d_font = QtGui.QFont('Courier')
c_format = QtGui.QTextCharFormat()
c_format.setFont(d_font)
cur.setCharFormat(c_format)
cur.insertText('sample text')

writer = QtGui.QTextDocumentWriter()
writer.setFormat(writer.supportedDocumentFormats()[1])
writer.setFileName('CV')
writer.write(doc)

我使用了 Courier，因为我的系统上没有安装 Times New Roman.

I've used Courier because Times New Roman is not installed on my system.

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