qt-qtable能否将列标签旋转90度?

你可能需要子类 QTableWidgetItem 并实现自己的垂直文本绘制。然后使用 setHorizontalHeaderItem() 在您的表上指向新小部件的一个实例。

在寻找这个问题的答案时,我发现了很多提示,但没有真正的答案。提示告诉我们将qheaderview子类化并重新实现paintsection。当我在Pyqt4中尝试这样做,并尝试从头开始实现paintsection时,遵循qheaderview的来源,我没有成功。但是,只需旋转paint实例并调整所有大小提示就可以成功了。 该代码仅适用于水平标题,并且非常紧凑:

from PyQt4 import QtGui, QtCore

class RotatedHeaderView( QtGui.QHeaderView ):
    def __init__(self, orientation, parent=None ):
        super(RotatedHeaderView, self).__init__(orientation, parent)
        self.setMinimumSectionSize(20)

    def paintSection(self, painter, rect, logicalIndex ):
        painter.save()
        # translate the painter such that rotate will rotate around the correct point
        painter.translate(rect.x()+rect.width(), rect.y())
        painter.rotate(90)
        # and have parent code paint at this location
        newrect = QtCore.QRect(0,0,rect.height(),rect.width())
        super(RotatedHeaderView, self).paintSection(painter, newrect, logicalIndex)
        painter.restore()

    def minimumSizeHint(self):
        size = super(RotatedHeaderView, self).minimumSizeHint()
        size.transpose()
        return size

    def sectionSizeFromContents(self, logicalIndex):
        size = super(RotatedHeaderView, self).sectionSizeFromContents(logicalIndex)
        size.transpose()
        return size

我已经制作了一个自定义脚本,根据前面的答案,它可以正常工作。

复制并粘贴旋转.py文件中的下一个代码

#!/usr/bin/env python

from PyQt4.QtCore import *
from PyQt4.QtGui import *

class RotatedHeaderView(QHeaderView):
    def __init__(self, parent=None):
        super(RotatedHeaderView, self).__init__(Qt.Horizontal, parent)
        self.setMinimumSectionSize(20)

    def paintSection(self, painter, rect, logicalIndex ):
        painter.save()
        # translate the painter such that rotate will rotate around the correct point
        painter.translate(rect.x()+rect.width(), rect.y())
        painter.rotate(90)
        # and have parent code paint at this location
        newrect = QRect(0,0,rect.height(),rect.width())
        super(RotatedHeaderView, self).paintSection(painter, newrect, logicalIndex)
        painter.restore()

    def minimumSizeHint(self):
        size = super(RotatedHeaderView, self).minimumSizeHint()
        size.transpose()
        return size

    def sectionSizeFromContents(self, logicalIndex):
        size = super(RotatedHeaderView, self).sectionSizeFromContents(logicalIndex)
        size.transpose()
        return size

然后使用此行从main.py文件导入此类:

from rotated import RotatedHeaderView

并完成以下操作:

self.YourTableName.setHorizontalHeader(RotatedHeaderView(self.YourTableName))

希望值得!