如下所示：
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#!/usr/bin/evn python3# -*- coding: utf-8 -*- import sysfrom pyqt5.qtwidgets import (qapplication, qwidget, qscrollarea, qlabel)from pyqt5.qtcore import qevent class testwindow(qwidget): def __init__(self): super(testwindow, self).__init__() self.resize(800, 600) self.move(0, 0) # self.setmousetracking(false) self.last_time_move = 0 self.initui() def initui(self): self.central_widget = qwidget(self) self.scroll_area = qscrollarea(self) self.scroll_area.setgeometry(0, 0, 400, 400) self.scroll_area.setwidgetresizable(true) self.scroll_bar = self.scroll_area.verticalscrollbar() self.scroll_contents = qwidget() self.scroll_contents.setgeometry(0, 0, 400, 800) self.scroll_contents.setminimumsize(380, 1000) self.label_1 = qlabel(self.scroll_contents) self.label_1.move(50, 100) self.label_1.settext("helloryan") self.label_2 = qlabel(self.scroll_contents) self.label_2.move(50, 200) self.label_2.settext("你好") self.label_3 = qlabel(self.scroll_contents) self.label_3.move(50, 300) self.label_3.settext("-----------") self.label_4 = qlabel(self.scroll_contents) self.label_4.move(50, 400) self.label_4.settext("542543255235432543252") self.label_5 = qlabel(self.scroll_contents) self.label_5.move(50, 500) self.label_5.settext("5432543262542") self.label_6 = qlabel(self.scroll_contents) self.label_6.move(50, 600) self.label_6.settext("4325432532") self.scroll_area.setwidget(self.scroll_contents) self.scroll_area.installeventfilter(self) # def mousemoveevent(self, event): # if event.pos().x() > 0 and event.pos().x() < 400 and event.pos().y() > 0 and event.pos().y() < 400: # if self.last_time_move == 0: # self.last_time_move = event.pos().y() # # distance = self.last_time_move - event.pos().y() # self.scroll_bar.setvalue(self.scroll_bar.value() + distance) # # self.last_time_move = event.pos().y() # print("move%d" % event.pos().y()) # # def mousereleaseevent(self, event): # self.last_time_move = 0 # print("up") def eventfilter(self, source, event): if event.type() == qevent.mousemove: print(event.pos().y()) if self.last_time_move == 0: self.last_time_move = event.pos().y() distance = self.last_time_move - event.pos().y() self.scroll_bar.setvalue(self.scroll_bar.value() + distance) self.last_time_move = event.pos().y() elif event.type() == qevent.mousebuttonrelease: self.last_time_move = 0 return qwidget.eventfilter(self, source, event) if __name__ == "__main__": app = qapplication(sys.argv) test = testwindow() test.show() sys.exit(app.exec_()) |
以上这篇pyqt5实现让qscrollarea支持鼠标拖动的操作方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/SongAla/article/details/78732040
