Qt第五章：渲染表格

╰半夏微凉° 2024-04-07 14:54 115阅读 0赞

#### 数据渲染 ####

def handle_search(self):
            # 获取数据
            self.users = get_user_info(token=self.token, username=self.lineEdit.text())
            # QTableWidget句柄
            widget: QTableWidget = self.tableWidget
            # 设置行数
            widget.setRowCount(len(self.users))
            # 设置列数
            widget.setColumnCount(4)
            # 设置表头
            widget.setHorizontalHeaderLabels(["姓名", "组织", "手机号码", "操作"])
    
            # 设置表头宽度自适应
            widget.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
            widget.horizontalHeader().setSectionResizeMode(0, QHeaderView.Fixed)
            widget.horizontalHeader().setSectionResizeMode(2, QHeaderView.Fixed)
    
            # 设置表格数据
            for i in range(len(self.users)):
                # 第i行第一列
                item_username = QTableWidgetItem(self.users[i]['userName'])
                # 文字居中
                item_username.setTextAlignment(Qt.AlignCenter | Qt.AlignCenter)
                widget.setItem(i, 0, item_username)
                # 第i行第二列
                widget.setItem(i, 1, QTableWidgetItem(self.users[i]['orgName']))
                # 第i行第三列
                item_phone = QTableWidgetItem(self.users[i]['phone'])
                item_phone.setTextAlignment(Qt.AlignCenter | Qt.AlignCenter)
                widget.setItem(i, 2, item_phone)
    
                button = QPushButton()
                button.setObjectName("button_" + str(i))
                button.setText("同步")
                # 添加图标
                icon = QIcon()
                icon.addFile(u"icons/同步Sync.png", QSize(), QIcon.Normal, QIcon.Off)
                button.setIcon(icon)
                # 绑定处理函数
                button.clicked.connect(self.handle_select)
                # 第i行第四列（设置成一个按钮）
                widget.setCellWidget(i, 3, button)
    
        # 按钮点击事件
        def handle_select(self):
            widget: QTableWidget = self.tableWidget
    
            # 当前行
            # row = widget.currentRow()
            
            button = self.sender()
            if button:
                # 确定按钮所在行
                row = widget.indexAt(button.pos()).row()
                # 确定按钮所在列
                column = widget.indexAt(button.pos()).column()
                # 处理函数
                send_mq(self.users[row])

#### 渲染控件 ####

例1：在一个方格中渲染两个按钮

button_add = QPushButton(self)
                button_add.setObjectName("button_add_" + str(i))
                button_add.setText("新增")
                button_add.clicked.connect(self.handle_add)
    
                button_del = QPushButton(self)
                button_del.setObjectName("button_del_" + str(i))
                button_del.setText("删除")
                button_del.clicked.connect(self.handle_del)
                # 新建一个QWidget对象
                widget_op = QWidget()
                # 两个按钮水平局部
                layout_op = QHBoxLayout()
                # 添加两个
                layout_op.addWidget(button_add)
                layout_op.addWidget(button_del)
                # 设置边距
                layout_op.setContentsMargins(5, 2, 5, 2)
                # 将布局设置到QWidget对象上
                widget_op.setLayout(layout_op)
                # 将QWidget对象设置到方格中
                self.table_widget.setCellWidget(i, 3, widget_op)
    
        def handle_add(self):
            save_path = SavePath(path='',
                                 create_time=str(datetime.datetime.now()),
                                 update_time=str(datetime.datetime.now()))
            save_path_add(save_path)
            self.init_ui()
    
        def handle_del(self):
            if len(self.data_list) <= 1:
                QMessageBox.warning(self, "提示", "最后一条不允许删除！！！")
                return
            # 当前行
            sender = self.sender()
            if sender:
                row = str(sender.objectName()).split("_")[-1]
                question = QMessageBox.question(self, "删除确认", "确认要删除吗？", QMessageBox.Yes | QMessageBox.No)
                if question is QMessageBox.StandardButton.Yes:
                    # 处理函数
                    save_path_del(self.data_list[int(row)].id)
                    # 重新渲染
                    self.init_ui()

例2：在一个方格中渲染一个QLabel和一个按钮

# 第i行第二列
                label_path = QLabel()
                label_path.setText(self.data_list[i].path)
    
                button_select_path = QPushButton(self)
                # 固定一下按钮的大小
                button_select_path.setFixedWidth(50)
                # 取带有编号的objectName,用来判断是哪一行的按钮
                button_select_path.setObjectName("button_select_path_" + str(i))
                button_select_path.setText("选择...")
                button_select_path.clicked.connect(self.handle_select_path)
    
                widget_path = QWidget()
                layout_path = QHBoxLayout()
                layout_path.addWidget(label_path)
                layout_path.addWidget(button_select_path)
                layout_path.setContentsMargins(5, 2, 5, 2)
                widget_path.setLayout(layout_path)
                self.table_widget.setCellWidget(i, 1, widget_path)
    
        def handle_select_path(self):
            sender = self.sender()
            if sender:
                directory = QFileDialog.getExistingDirectory(self, "选取文件夹", "C:/")
                row = str(sender.objectName()).split("_")[-1]
                data = self.data_list[int(row)]
                data.path = directory
                save_path_update(data)
                # 重新渲染
                self.init_ui()