PyQT - 在 QTableWidget 单元格中显示垂直文本

PyQT - Displaying vertical text in QTableWidget cells

本文关键字：显示 垂直 文本 单元格 QTableWidget PyQT      更新时间：2023-10-16

我找到了C++代码来回答我的问题，但我无法使用Python使其工作。 我不知道C++，就像那里的递归...

class VerticalTextDelegate(QtGui.QStyledItemDelegate):
def __init__(self, parent):
super(VerticalTextDelegate, self).__init__()
def paint(self, painter, option, index):
optionCopy = QtGui.QStyleOptionViewItem(option)
rectCenter = QtCore.QPointF(QtCore.QRectF(option.rect).center())
painter.save()
painter.translate(rectCenter.x(), rectCenter.y())
painter.rotate(-90.0)
painter.translate(-rectCenter.x(), -rectCenter.y())
optionCopy.rect = painter.worldTransform().mapRect(option.rect)
# recursion here, I don't understand how it works in C++
# self.paint(painter, optionCopy, index)
self.painter.restore()
def sizeHint(self, option, index):
val = QtGui.QSize(self.sizeHint(option, index))
return QtGui.QSize(val.height(), val.width())

运行代码：

item = QtGui.QTableWidgetItem("test")
self.table_widget.setItem(2, 0, item)
self.table_widget.setItemDelegateForColumn(0,VerticalTextDelegate(self))

如果你看一下你引用的C++例子，你会发现VerticalTextDelegate::paint实现基本上是修复QPainter转换，然后调用基类实现QStyledItemDelegate::paint。 您也需要这样做(未经测试(...

def paint(self, painter, option, index):
optionCopy = QtGui.QStyleOptionViewItem(option)
rectCenter = QtCore.QPointF(QtCore.QRectF(option.rect).center())
painter.save()
painter.translate(rectCenter.x(), rectCenter.y())
painter.rotate(-90.0)
painter.translate(-rectCenter.x(), -rectCenter.y())
optionCopy.rect = painter.worldTransform().mapRect(option.rect)
# Call the base class implementation
super(VerticalTextDelegate, self).paint(painter, optionCopy, index)
painter.restore()
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