美文网首页
pyqt5的QCompleter自动补全-使用模板

pyqt5的QCompleter自动补全-使用模板

作者: 一心狮 | 来源:发表于2020-08-26 09:38 被阅读0次

    相关说明

    使用QCompleter类,就可以实现自动补全功能,效果图如下:


    对应的代码很简单

        def init_lineedit(self):
            # 增加自动补全
            self.completer = QCompleter(items_list)
            # 设置匹配模式  有三种: Qt.MatchStartsWith 开头匹配(默认)  Qt.MatchContains 内容匹配  Qt.MatchEndsWith 结尾匹配
            self.completer.setFilterMode(Qt.MatchContains)
            # 设置补全模式  有三种: QCompleter.PopupCompletion(默认)  QCompleter.InlineCompletion   QCompleter.UnfilteredPopupCompletion
            self.completer.setCompletionMode(QCompleter.PopupCompletion) 
            # 给lineedit设置补全器
            self.lineedit.setCompleter(self.completer)
    
    
        def init_combobox(self):
            # 增加选项元素
            for i in range(len(items_list)):
                self.combobox.addItem(items_list[i])
            self.combobox.setCurrentIndex(-1)
    
            # 增加自动补全
            self.completer = QCompleter(items_list)
            self.completer.setFilterMode(Qt.MatchContains)
            self.completer.setCompletionMode(QCompleter.PopupCompletion)
            self.combobox.setCompleter(self.completer)
    

    【如下代码,完全复制,直接运行,即可使用】

    import sys
    from PyQt5.QtWidgets import *
    from PyQt5.QtGui import *
    from PyQt5.QtCore import *
    ################################################
    
    items_list=["C","C++","Java","Python","JavaScript","C#","Swift","go","Ruby","Lua","PHP"]
    
    ################################################
    class Widget(QWidget):
        def __init__(self, *args, **kwargs):
            super(Widget, self).__init__(*args, **kwargs)
            layout = QHBoxLayout(self)
            self.lineedit = QLineEdit(self, minimumWidth=200)
            self.combobox = QComboBox(self, minimumWidth=200)
            self.combobox.setEditable(True)
    
    
            layout.addWidget(QLabel("QLineEdit", self))
            layout.addWidget(self.lineedit)
            layout.addItem(QSpacerItem(20, 20, QSizePolicy.Expanding, QSizePolicy.Minimum))
    
            layout.addWidget(QLabel("QComboBox", self))
            layout.addWidget(self.combobox)
    
    
            #初始化combobox
            self.init_lineedit()
            self.init_combobox()
    
    
            #增加选中事件
            self.combobox.activated.connect(self.on_combobox_Activate)
    
    
    
        def init_lineedit(self):
            # 增加自动补全
            self.completer = QCompleter(items_list)
            # 设置匹配模式  有三种: Qt.MatchStartsWith 开头匹配(默认)  Qt.MatchContains 内容匹配  Qt.MatchEndsWith 结尾匹配
            self.completer.setFilterMode(Qt.MatchContains)
            # 设置补全模式  有三种: QCompleter.PopupCompletion(默认)  QCompleter.InlineCompletion   QCompleter.UnfilteredPopupCompletion
            self.completer.setCompletionMode(QCompleter.PopupCompletion)
            # 给lineedit设置补全器
            self.lineedit.setCompleter(self.completer)
    
    
    
        def init_combobox(self):
            # 增加选项元素
            for i in range(len(items_list)):
                self.combobox.addItem(items_list[i])
            self.combobox.setCurrentIndex(-1)
    
            # 增加自动补全
            self.completer = QCompleter(items_list)
            self.completer.setFilterMode(Qt.MatchContains)
            self.completer.setCompletionMode(QCompleter.PopupCompletion)
            self.combobox.setCompleter(self.completer)
    
    
        def on_combobox_Activate(self, index):
            print(self.combobox.count())
            print(self.combobox.currentIndex())
            print(self.combobox.currentText())
            print(self.combobox.currentData())
            print(self.combobox.itemData(self.combobox.currentIndex()))
            print(self.combobox.itemText(self.combobox.currentIndex()))
            print(self.combobox.itemText(index))
    
    
    
    
    
    
    if __name__ == "__main__":
        app = QApplication(sys.argv)
        w = Widget()
        w.show()
        sys.exit(app.exec_())
    

    本文如有帮助,敬请留言鼓励。
    本文如有错误,敬请留言改进。

    相关文章

      网友评论

          本文标题:pyqt5的QCompleter自动补全-使用模板

          本文链接:https://www.haomeiwen.com/subject/biqpjktx.html