python-根据来自QComboBox的用户输入添加和删除动态生成的QLineEdit小部件

Python 前端之家
前端之家收集整理的这篇文章主要介绍了python-根据来自QComboBox的用户输入添加和删除动态生成的QLineEdit小部件 ，前端之家小编觉得挺不错的，现在分享给大家，也给大家做个参考。

我正在构建一个应用程序来“滚动”同一张面孔的多个骰子,因此,如果我需要滚动5个8面骰子,则在QComboBox中选择标签D8下的5,然后弹出5个QLineEdit小部件,并带有5个值显示“骰子”.

当前,在选择QComboBox中的数字后,我能够显示正确数量的QLineEdit小部件.当我尝试完全删除模具胶卷显示器或将QLineEdit小部件的数量设置为小于第一个值时,就会出现问题.有时它会起作用,但永远不会在我尝试将显示设置为0时出现,否则我会抛出KeyError或RuntimeError.

from PySide2.QtCore import Qt
from PySide2.QtWidgets import QGridLayout,QPushButton,QLineEdit,QLabel,QComboBox,QDialog,QApplication

class RollMultiDiePopup(QDialog):
    def __init__(self,parent=None):
        super(RollMultiDiePopup,self).__init__(parent)
        #self.setGeometry(300,300,200)
        self.setWindowTitle('Additional Dies to roll')
        self.setContentsMargins(5,5,5)
        self.comboDict = {"D4": 4,"D6": 6,"D8": 8,"D10": 10,"D12": 12,"D20": 20}
        self.comboLblDict = {"# of D4s": 0,"# of D6s": 0,"# of D8s": 0,"# of D10s": 0,"# of D12s": 0,"# of D20s": 0}
        self.layoutGrid = QGridLayout(self)
        self.layoutGrid.setSpacing(10)
        self.gridRow = 0
        self.gridCol = 0
        self.comboLbl = {}
        self.comboBoxes = {}
        self.addnlInputs = {}
        self.generatecombolabels()
        self.generatecomboBoxes()
        self.generaterollbuttons()
        self.setLayout(self.layoutGrid)
        self.adjustSize()

    def generatecombolabels(self):
        self.gridCol = 0
        for key,val in self.comboLblDict.items():
            self.gridCol = self.gridCol + 1
            self.comboLbl[key] = QLabel(key,self)
            self.layoutGrid.addWidget(self.comboLbl[key],self.gridCol)

    def generatecomboBoxes(self):
        self.gridCol = 0
        for key,val in self.comboDict.items():
            self.gridCol = self.gridCol + 1
            self.comboBoxes[key] = QComboBox(self)
            self.comboBoxes[key].addItems([str(x) for x in range(21)])
            #self.comboBoxes[key].activated.connect(self.adddisplays)
            self.layoutGrid.addWidget(self.comboBoxes[key],1,self.gridCol)

    def generaterollbuttons(self):
        self.gridCol = 0
        for key,val in self.comboDict.items():
            self.gridCol = self.gridCol + 1
            buttons = QPushButton("Roll " + key + "s",self)
            buttons.setToolTip("Roll D" + str(self.comboDict[key]) + " (1 - " + str(self.comboDict[key]) + ")")
            #buttons.clicked.connect(partial(self.rolldie,val))
            buttons.clicked.connect(self.adddisplays)
            self.layoutGrid.addWidget(buttons,2,self.gridCol)

    def rolldie(self):
        pass

    def adddisplays(self):
        d4s = int(self.comboBoxes["D4"].currentText())
        d6s = int(self.comboBoxes["D6"].currentText())
        d8s = int(self.comboBoxes["D8"].currentText())
        d10s = int(self.comboBoxes["D10"].currentText())
        d12s = int(self.comboBoxes["D12"].currentText())
        d20s = int(self.comboBoxes["D20"].currentText())
        dies = {1: d4s,2: d6s,3: d8s,4: d10s,5: d12s,6: d20s}
        #if d4s == 0 or d6s == 0 or d8s == 0 or d10s == 0 or d12s == 0 or d20s == 0:
        self.removeaddeddisplays()
        if d4s > 0 or d6s > 0 or d8s > 0 or d10s > 0 or d12s > 0 or d20s > 0:
            for keys,vals in dies.items():
                self.gridRow = 3
                for i in range(vals):
                    self.gridRow += 1
                    self.addnlInputs["addnlInput" + str(i + 1)] = QLineEdit(self)
                    self.addnlInputs["addnlInput" + str(i + 1)].setAlignment(Qt.AlignRight)
                    self.addnlInputs["addnlInput" + str(i + 1)].setText("")
                    self.addnlInputs["addnlInput" + str(i + 1)].setPlaceholderText("Die Roll #" + str(i + 1))
                    self.layoutGrid.addWidget(self.addnlInputs["addnlInput" + str(i + 1)],self.gridRow,keys)

    def removeaddeddisplays(self):
        try:
            for i in range(3,21):
                self.layoutGrid.removeWidget(self.addnlInputs["addnlInput" + str(i + 1)])
                self.addnlInputs["addnlInput" + str(i + 1)].deleteLater()
                self.addnlInputs["addnlInput" + str(i + 1)] = None
                self.adjustSize()
        except KeyError:
            print("1")
        except RuntimeError:
            print("2")


if __name__ == "__main__":
    app = QApplication()
    w = RollMultiDiePopup()
    w.show()
    app.exec_()

这是最初生成QComboBoxes并填充#s列表的代码.

self.gridCol = 0
for key,val in self.comboDict.items():
    self.gridCol = self.gridCol + 1
    self.comboBoxes[key] = QComboBox(self)
    self.comboBoxes[key].addItems([str(x) for x in range(21)])
    #self.comboBoxes[key].activated.connect(self.adddisplays)
    self.layoutGrid.addWidget(self.comboBoxes[key],self.gridCol)

这是当与D#标签/组合框相对应的按钮时添加显示的代码

d4s = int(self.comboBoxes["D4"].currentText())
d6s = int(self.comboBoxes["D6"].currentText())
d8s = int(self.comboBoxes["D8"].currentText())
d10s = int(self.comboBoxes["D10"].currentText())
d12s = int(self.comboBoxes["D12"].currentText())
d20s = int(self.comboBoxes["D20"].currentText())
dies = {1: d4s,6: d20s}
#if d4s == 0 or d6s == 0 or d8s == 0 or d10s == 0 or d12s == 0 or d20s == 0:
self.removeaddeddisplays()
if d4s > 0 or d6s > 0 or d8s > 0 or d10s > 0 or d12s > 0 or d20s > 0:
    for keys,vals in dies.items():
        self.gridRow = 3
        for i in range(vals):
            self.gridRow += 1
            self.addnlInputs["addnlInput" + str(i + 1)] = QLineEdit(self)
            self.addnlInputs["addnlInput" + str(i + 1)].setAlignment(Qt.AlignRight)
            self.addnlInputs["addnlInput" + str(i + 1)].setText("")
            self.addnlInputs["addnlInput" + str(i + 1)].setPlaceholderText("Die Roll #" + str(i + 1))
            self.layoutGrid.addWidget(self.addnlInputs["addnlInput" + str(i + 1)],keys)

这是removeaddeddisplays函数

try:
    for i in range(3,21):
        self.layoutGrid.removeWidget(self.addnlInputs["addnlInput" + str(i + 1)])
        self.addnlInputs["addnlInput" + str(i + 1)].deleteLater()
        self.addnlInputs["addnlInput" + str(i + 1)] = None
        self.adjustSize()
except KeyError:
     print("1")
except RuntimeError:
     print("2")

我尝试了几种不同的方式来删除小部件,并最终获得不同的结果,只删除了所有其他显示,所有内容,三分之一..etc.这是迄今为止我发现的最一致的方法.

我使用的是python 3和pyside 2,在显示器正常工作后,我会担心处理模版.

@H_502_40@最佳答案
如果要从布局中删除窗口小部件,只需使用deleteLater,但这并不意味着如果将引用存储在列表中,则这些引用将被删除.在我的策略中,我使用deleteLater消除了所有QLineEdits,重置了存储它的列表,并创建了新的QLineEdits.

from PySide2 import QtCore,QtWidgets

class RollMultiDiePopup(QtWidgets.QDialog):
    def __init__(self,self).__init__(parent)

        self._data = {
            "D4": 4,"D20": 20
        }

        self._lineedits = [[] for _ in self._data]
        self._comboBoxes = []

        grid_layout = QtWidgets.QGridLayout(self)
        self.create_labels()
        self.create_comboBoxes()
        self.create_buttons()

    def create_labels(self):
        row = 0
        grid_layout = self.layout()
        for i,k in enumerate(self._data.keys()):
            label = QtWidgets.QLabel("# of {}s".format(k))
            grid_layout.addWidget(label,row,i)

    def create_comboBoxes(self):
        row = 1
        grid_layout = self.layout()
        for i in range(len(self._data)):
            combo = QtWidgets.QComboBox()
            combo.addItems([str(j) for j in range(21)])
            self._comboBoxes.append(combo)
            grid_layout.addWidget(combo,i)

    def create_buttons(self):
        row = 2
        grid_layout = self.layout()
        for i,(k,v) in enumerate(self._data.items()):
            button = QtWidgets.QPushButton("Roll {}s".format(k))
            button.setToolTip("Roll {}(1 - {})".format(k,v))
            button.clicked.connect(self.update_lineedits)
            grid_layout.addWidget(button,i)

    @QtCore.Slot()
    def update_lineedits(self):
        row = 3
        grid_layout = self.layout()
        for r in self._lineedits:
            for le in r:
                le.deleteLater()
        self._lineedits = [[] for _ in self._data]
        for i,(les,combo) in enumerate(zip(self._lineedits,self._comboBoxes)):
            v = int(combo.currentText())
            for j in range(v):
                le = QtWidgets.QLineEdit()
                le.setPlaceholderText("Die Roll #{}".format(j+1))
                grid_layout.addWidget(le,row+j,i)
                les.append(le)
        QtCore.QTimer.singleShot(0,self.adjust_size)

    @QtCore.Slot()
    def adjust_size(self):
        animation = QtCore.QPropertyAnimation(self,b"size",self)
        animation.setStartValue(self.size())
        animation.setEndValue(self.minimumSizeHint())
        animation.start(QtCore.QAbstractAnimation.DeleteWhenStopped)

if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    w = RollMultiDiePopup()
    w.show()
    sys.exit(app.exec_())
pyside2

猜你在找的Python相关文章

爬虫实战：探索XPath爬虫技巧之热榜新闻
在这篇文章中，我们深入学习了XPath作为一种常见的网络爬虫技巧。XPath是一种用于定位和选...
谁说后端不能画出美丽的动图？让我来给大家拜个年！
祝福大家龙年快乐！愿你们的生活像龙一样充满力量和勇气，愿你们在新的一年里，追逐梦想，...
爬虫实战：从网页到本地，如何轻松实现小说离线阅读
今天在爬虫实战中，除了正常爬取网页数据外，我们还添加了一个下载功能，主要任务是爬取小...
爬虫实战+数据分析：全国消费支出分析及未来预测
完美收官，本文是爬虫实战的最后一章了，所以尽管本文着重呈现爬虫实战，但其中有一大部分...
Java开发者的Python进修指南：JSON利器之官方json库、demjson和orjson的实用指南
JSON是一种流行的数据传输格式，Python中有多种处理JSON的方式。官方的json库是最常用的，...
使用Python的turtle模块绘制美丽的樱花树
通过本文的学习和实践，我们掌握了使用Python的turtle模块来创作樱花树图画的技巧，这个过...
利用大型语言模型轻松打造浪漫时刻
在这篇文章中，我们介绍了如何利用大型语言模型为情人节营造难忘的氛围。通过上传图片并进...
成为一个合格程序员所必备的三种常见LeetCode排序算法
排序算法是一种通过特定的算法因式将一组或多组数据按照既定模式进行重新排序的方法。通过...
5分钟上手Python爬虫：从干饭开始，轻松掌握技巧
本文的重点在于引导读者如何初步掌握爬虫技术。初步掌握爬虫技术并不难，但是在实际操作中...
AI实用指南：5分钟搭建你自己的LLM聊天应用
本文介绍了如何快速搭建一个基于大型语言模型（LLM）的混元聊天应用。强调了开发速度的重要...
PHPJavaJava SEPythonC#C&C++RubyVBasp.NetGoPerlnettyDjangoDelphiJsp.NET CoreSpringFlaskSpringbootSpringMVCLuaLaravelMybatisAspGroovyThinkPHPYiiswoole
文件时间pythonm相等性PHP Warning时间问题问题解决pcntl_signal采样点wav模块动态文本调用频率限制对外暴露多个访问请求更新数据表模型结构type()方法比较速度手写体sobel算子保存模型Image类nn.Conv2dpytorch1.0kaggleDCGAN交并比range()用法打印模型反卷积卷积