Help/help_widget.py at master · suyou5/Help · GitHub

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from PyQt5.QtWidgets import *
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QPixmap, QPalette, QIcon
from PyQt5.QtCore import QSize
from PyQt5.QtCore import QEvent
import pysnooper
import sys

class HelpWindow(QWidget):
    def __init__(self):
        super(HelpWindow, self).__init__()
        self.setWindowTitle('帮助文档')


        self.topFiller = QWidget()
        self.topFiller.setMinimumSize(1000, 2000)  #######设置滚动条的尺寸
        self.label3 = QLabel(self.topFiller)
        self.label3.setAlignment(Qt.AlignCenter)     # 设置文本标签居中显示
        self.label3.setScaledContents(True)
        pixmap = QPixmap('0002.jpg')
        # Qt.KeepAspectRatio设置为等比例缩放
        # Qt.IgnoreAspectRatio为不按比例缩放
        scaredPixmap = pixmap.scaled(QSize(1000, 2000), aspectRatioMode = Qt.KeepAspectRatio)
        self.label3.setScaledContents(True)
        self.label3.setPixmap(scaredPixmap)

        ##创建一个滚动条
        self.scroll = QScrollArea()
        self.scroll.setWidget(self.topFiller)
        self.hSb = self.scroll.verticalScrollBar()

        vbox1 = QVBoxLayout()
        vbox1.addWidget(self.label3)
        self.topFiller.setLayout(vbox1)

        vbox2 = QVBoxLayout()
        vbox2.addWidget(self.topFiller)
        self.scroll.setLayout(vbox2)

        self.vbox = QVBoxLayout()
        self.vbox.addWidget(self.scroll)
        self.setLayout(self.vbox)

    def wheelEvent(self, event):
        angle = event.angleDelta()
        y = angle.y()
        self.hSb.setValue(self.hSb.value() - y)


if __name__ == '__main__':
    app  =QApplication(sys.argv)
    win = HelpWindow()
    win.setWindowIcon(QIcon('interface/icon.ico'))
    win.show()
    sys.exit(app.exec_())