是否有一个PyQt表/列表视图,可以使用其中一列中的组合框动态填充?

时间:2017-08-15 16:34:03

标签: python pyqt pyqt4 qgis

我正在使用PyQt作为qgis插件。我希望有一些table / listview,其中第一列是open shapefile中的层,然后第二列是组合框,将从数据库输入中加载值。这是可能的,如果是这样,我需要使用listview,tableview或treeview吗?提前致谢!!

1 个答案:

答案 0 :(得分:1)

如果我理解你,我前段时间做了类似的事情。

在我的情况下,我想用QDoubleSpinBoxes填充以下QTableWidget,并为每个QToubleWinBox设置特定的属性。

enter image description here

所以我在QDesigner中创建了一个“模型”空QTableWidget,在我的代码中我使用了以下函数:

填充QTableWidget

def QTableWidget_populate(self, table):
    # Create an empty matrix with the same dimensions as your table
    self.ele_mat = [
        [0 for x in range(table.columnCount())] for x in range(table.rowCount())]
    # For each cell in the table define its characteristics
    for row in xrange(table.rowCount()):
        for column in xrange(table.columnCount()):
            # Define row name prefix
            if row == 0:
                element = 'Begin_'
            elif row == 1:
                element = 'MidMinus_'
            elif row == 2:
                element = 'MidPlus_'
            elif row == 3:
                element = 'End_'

            # Define columns paraters
            if column == 0:
                element += 'Pow'    # Name column sufix
                param1 = '2'        # setDecimals settings
                param2 = '-99,99'   # setRange
                param3 = '"dBm"'    # seSuffix
            elif column == 1:
                element += 'PD'
                param1 = '0'
                param2 = '0,999'
                param3 = '"uA"'
            elif column == 2:
                element += 'TMVoltage'
                param1 = '2'
                param2 = '-99,99'
                param3 = '"V"'
            elif column == 3:
                element += 'Wav'
                param1 = '1'
                param2 = '0,2000'
                param3 = '"nm"'
            # Popule matrix with dict of parameters
            self.ele_mat[row][column] = {
                'name': element, 'type': 'QtGui.QDoubleSpinBox()',
                                         'Adjustments': ['setDecimals', 'setRange', 'setSuffix'],
                                         'Params':  [param1, param2, param3]}
    # Using the matrix populate the QTableWidget                                  
    for row in xrange(table.rowCount()):
        for column in xrange(table.columnCount()):
            # Create Widget with name and type defined in the matrix
            exec('self.{} = {}' .format(
                self.ele_mat[row][column]['name'],
                self.ele_mat[row][column]['type']))

            # Give it its settings
            for adjustment, param in zip(self.ele_mat[row][column]['Adjustments'],
                                         self.ele_mat[row][column]['Params']):
                exec('self.{}.{}({})' .format(self.ele_mat[
                     row][column]['name'], adjustment, param))

            # Set the created widget to the QTableWidget
            table.setCellWidget(row, column, eval(
                'self.{}' .format(self.ele_mat[row][column]['name'])))

    # For better clarity in GUI
    table.horizontalHeader().setResizeMode(QtGui.QHeaderView.Stretch)
    table.verticalHeader().setResizeMode(QtGui.QHeaderView.Stretch)

我不知道您正在阅读的文件格式是怎样的,但我确定您可以根据文件中的条目在我的函数中添加for循环以将setValue添加到QDoubleSpinBox。此外,您还可以使用setVerticalHeaderLabelssetHorizontalHeaderLabels方法通过代码设置标题标签。

即使我使用pyqt,我通常使用pyside的文档,因为它们在大多数时候是相同的,并且pyside更容易阅读和导航。 QTableWidget Docs

希望它有用。