wx 网格 SetCellBackGroundColor() 没有按预期工作

Question

我有以下程序创建一个 wx 网格，设置一个单元格的背景颜色，然后通过设置被单击单元格的背景颜色来处理左键单击事件：

import wx
import wx.grid as gridlib
class MyForm(wx.Frame):

    def __init__(self):
        wx.Frame.__init__(self, None, wx.ID_ANY, "Sample grid")

        self.grid = gridlib.Grid(self)
        self.grid.CreateGrid(5,4)
        self.grid.SetCellSize(4,1,1,2)

        self.grid.SetDefaultCellAlignment(wx.ALIGN_CENTRE, wx.ALIGN_CENTRE)

        self.grid.SetColLabelSize(0)            # eliminates spreadsheet-style row & col headers
        self.grid.SetRowLabelSize(0)

        self.grid.SetCellBackgroundColour(4, 3, wx.LIGHT_GREY)

        rowHeight = 50
        colWidth  = 50
        for i in range(1,5):
            self.grid.SetRowSize(i, rowHeight)
        for i in range(0,4):
            self.grid.SetColSize(i, colWidth)

        self.grid.Bind(gridlib.EVT_GRID_CELL_LEFT_CLICK, self.GridLeftClick, self.grid)

    def GridLeftClick(self, event):
        col = event.GetCol()
        row = event.GetRow()
        print(f"Got col {col} and row {row}")
        self.grid.SetCellBackgroundColour(row, col, wx.LIGHT_GREY)

app = wx.App()
frame = MyForm().Show()
app.MainLoop()

除 self.grid.SetCellBackgroundColor(row, col, wx.LIGHT_GREY) 语句外，一切都如我所料。当我设置网格时调用有效，所以我认为我是正确的。我得到打印语句，所以事件绑定正在工作。对于该方法，我还需要做什么才能在单击的单元格上放置背景颜色？

Answer 1

您只需刷新 window。
我添加了一个颜色切换器，因此它会在单击时在灰色和白色之间切换。

import wx
import wx.grid as gridlib
class MyForm(wx.Frame):

    def __init__(self):
        wx.Frame.__init__(self, None, wx.ID_ANY, "Sample grid")

        self.grid = gridlib.Grid(self)
        self.grid.CreateGrid(5,4)
        self.grid.SetCellSize(4,1,1,2)

        self.grid.SetDefaultCellAlignment(wx.ALIGN_CENTRE, wx.ALIGN_CENTRE)

        self.grid.SetColLabelSize(0)            # eliminates spreadsheet-style row & col headers
        self.grid.SetRowLabelSize(0)

        self.grid.SetCellBackgroundColour(4, 3, wx.LIGHT_GREY)

        rowHeight = 50
        colWidth  = 50
        for i in range(1,5):
            self.grid.SetRowSize(i, rowHeight)
        for i in range(0,4):
            self.grid.SetColSize(i, colWidth)

        self.grid.Bind(gridlib.EVT_GRID_CELL_LEFT_CLICK, self.GridLeftClick, self.grid)

    def GridLeftClick(self, event):
        col = event.GetCol()
        row = event.GetRow()
        clr = self.grid.GetCellBackgroundColour(row, col)
        if clr != wx.LIGHT_GREY:
            self.grid.SetCellBackgroundColour(row, col, wx.LIGHT_GREY)
        else:
            self.grid.SetCellBackgroundColour(row, col, wx.WHITE)
        self.Refresh()

app = wx.App()
frame = MyForm().Show()
app.MainLoop()

wx 网格 SetCellBackGroundColor() 没有按预期工作

wx grid SetCellBackGroundColor() is not working as expected

python

wxpython