問題描述

由于 pyqt 在垂直選項卡選項中沒有水平文本，我遵循了這個

Since pyqt doesn't have horizontal text in vertical tab option, I followed this link to make it happen. I wanted to have icons on the left and then text after icon and different color for selected tab text, inactive tabs text. Below code gets it done almost. The only problem is text alignment is center. I tried changing tabRect.center() but changing it with left and top or right etc is making it crash.

The commented code which I got from this linkgets me left alignment but it didn't have icons which I added. But in that I am unable to change text color of inactive tabs.

I am new to python and I am unable to find a solution for this. I tried this as well link but this only sets background color. tried using this option as well setTabTextColor link but it didn't work for some reason. been trying from 2 days.

Whenever I try to set text color using stylesheet with commented code, the "color" option won't work in stylesheet. any ideas on how to get this done? thanks

from PyQt5 import QtCore, QtGui, QtWidgets

class TabBar(QtWidgets.QTabBar):
    def tabSizeHint(self, index):
        s = QtWidgets.QTabBar.tabSizeHint(self, index)
        s.transpose()
        return s

    def paintEvent(self, event):
        painter = QtWidgets.QStylePainter(self)
        opt = QtWidgets.QStyleOptionTab()

        for i in range(self.count()):
            self.initStyleOption(opt, i)
            painter.drawControl(QtWidgets.QStyle.CE_TabBarTabShape, opt)
            painter.save()

            s = opt.rect.size()
            s.transpose()
            r = QtCore.QRect(QtCore.QPoint(), s)
            r.moveCenter(opt.rect.center())
            opt.rect = r

            c = self.tabRect(i).center()
            painter.translate(c)
            painter.rotate(90)
            painter.translate(-c)
            painter.drawControl(QtWidgets.QStyle.CE_TabBarTabLabel, opt)
            painter.restore()

        # for i in range(self.count()):
        #     self.initStyleOption(opt, i)
        #     c = self.tabRect(i)
        #     c.moveLeft(35)
        #     painter.drawControl(QtWidgets.QStyle.CE_TabBarTabShape, opt)
        #     # painter.setPen(QColor(255, 255, 255))
        #     painter.drawText(c, QtCore.Qt.AlignVCenter | QtCore.Qt.TextDontClip, self.tabText(i))
        #     if i == 0:
        #         painter.drawImage(QtCore.QRectF(8, 8, 20, 20), QtGui.QImage("images/logo.png"))
        #     if i == 1:
        #         painter.drawImage(QtCore.QRectF(8, 44, 20, 20), QtGui.QImage("images/data.png"))
        #     if i == 2:
        #         painter.drawImage(QtCore.QRectF(8, 82, 20, 20), QtGui.QImage("images/browse.png"))
        #     if i == 3:
        #         painter.drawImage(QtCore.QRectF(8, 120, 20, 20), QtGui.QImage("images/off.png"))
        #     if i == 4:
        #         painter.drawImage(QtCore.QRectF(8, 158, 20, 20), QtGui.QImage("images/cal.png"))
        #     if i == 5:
        #         painter.drawImage(QtCore.QRectF(8, 196, 20, 20), QtGui.QImage("images/fol.png"))
        #     if i == 6:
        #         painter.drawImage(QtCore.QRectF(8, 232, 20, 20), QtGui.QImage("images/exc.png"))
        # painter.end()


class TabWidget(QtWidgets.QTabWidget):
    def __init__(self, *args, **kwargs):
        QtWidgets.QTabWidget.__init__(self, *args, **kwargs)
        self.setTabBar(TabBar(self))
        self.setTabPosition(QtWidgets.QTabWidget.West)

The solution is to use a QProxyStyle to redirect text painting:

from PyQt5 import QtCore, QtGui, QtWidgets


class TabBar(QtWidgets.QTabBar):
    def tabSizeHint(self, index):
        s = QtWidgets.QTabBar.tabSizeHint(self, index)
        s.transpose()
        return s

    def paintEvent(self, event):
        painter = QtWidgets.QStylePainter(self)
        opt = QtWidgets.QStyleOptionTab()

        for i in range(self.count()):
            self.initStyleOption(opt, i)
            painter.drawControl(QtWidgets.QStyle.CE_TabBarTabShape, opt)
            painter.save()

            s = opt.rect.size()
            s.transpose()
            r = QtCore.QRect(QtCore.QPoint(), s)
            r.moveCenter(opt.rect.center())
            opt.rect = r

            c = self.tabRect(i).center()
            painter.translate(c)
            painter.rotate(90)
            painter.translate(-c)
            painter.drawControl(QtWidgets.QStyle.CE_TabBarTabLabel, opt);
            painter.restore()


class TabWidget(QtWidgets.QTabWidget):
    def __init__(self, *args, **kwargs):
        QtWidgets.QTabWidget.__init__(self, *args, **kwargs)
        self.setTabBar(TabBar(self))
        self.setTabPosition(QtWidgets.QTabWidget.West)

class ProxyStyle(QtWidgets.QProxyStyle):
    def drawControl(self, element, opt, painter, widget):
        if element == QtWidgets.QStyle.CE_TabBarTabLabel:
            ic = self.pixelMetric(QtWidgets.QStyle.PM_TabBarIconSize)
            r = QtCore.QRect(opt.rect)
            w =  0 if opt.icon.isNull() else opt.rect.width() + self.pixelMetric(QtWidgets.QStyle.PM_TabBarIconSize)
            r.setHeight(opt.fontMetrics.width(opt.text) + w)
            r.moveBottom(opt.rect.bottom())
            opt.rect = r
        QtWidgets.QProxyStyle.drawControl(self, element, opt, painter, widget)

if __name__ == '__main__':
    import sys

    app = QtWidgets.QApplication(sys.argv)
    QtWidgets.QApplication.setStyle(ProxyStyle())
    w = TabWidget()
    w.addTab(QtWidgets.QWidget(), QtGui.QIcon("zoom.png"), "ABC")
    w.addTab(QtWidgets.QWidget(), QtGui.QIcon("zoom-in.png"), "ABCDEFGH")
    w.addTab(QtWidgets.QWidget(), QtGui.QIcon("zoom-out.png"), "XYZ")

    w.resize(640, 480)
    w.show()

    sys.exit(app.exec_())

這篇關于pyqt5 tabwidget 垂直制表符 水平文本左對齊的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！