问题:
我遇到的问题是,在一个地方调用时,只是创建Grid()的函数可以工作,而不是在另一个地方调用。当从“其他”非工作场所调用它时,它会在窗口的角落创建一个非常小的正方形。在这个时候,我不明白为什么,我希望有人可以提供帮助。
代码:(随意复制粘贴到文本编辑器中,然后开始吧!)
import wx
import wx.grid as gridlib
class MainFrame(wx.Frame):
def __init__(self, parent, title):
super(MainFrame, self).__init__(parent, title=title,
size=(350, 250))
self.init_ux()
self.main_grid = None
def init_ux(self):
menu_bar = wx.MenuBar()
file_menu = wx.Menu()
file_menu.AppendSeparator()
menu_bar.Append(file_menu, '&File')
# add open file menu
open_menu = wx.Menu()
my_btn = open_menu.Append(wx.ID_ANY, 'button description')
# append open_menu to the file_menu
file_menu.Append(wx.ID_OPEN, '&Open', open_menu)
self.SetMenuBar(menu_bar)
self.Bind(wx.EVT_MENU, lambda event: self.open_dialog(data="i love string literals."), my_btn)
self.SetSize((300, 200))
self.Centre()
# the create_grid_view() below DOES work when uncommented
#self.create_grid_view(10, 10)
def create_grid_view(self, row_count, col_count):
print("Creating grid view!")
# set up grid panel
panel = wx.Panel(self)
self.main_grid = gridlib.Grid(panel)
self.main_grid.CreateGrid(row_count, col_count)
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(self.main_grid, 1, wx.EXPAND)
panel.SetSizer(sizer)
def open_dialog(self, data):
# data is being used for populating wildcard, etc
with wx.FileDialog(self, "Open a file!",
style=wx.FD_OPEN | wx.FD_FILE_MUST_EXIST) as fileDialog:
if fileDialog.ShowModal() == wx.ID_CANCEL:
return
file_path = fileDialog.GetPath()
try:
# here, I do some fun data "things" with the file_path
# open it, use other functions, etc.
# afterwards, I need to create a grid
self.create_grid_view(10, 10)
# ^^ This creates a small square instead of a grid.
except IOError:
wx.LogError("Cannot open file '%s'." % file_path)
if __name__ == "__main__":
app = wx.App()
frame = MainFrame(None, title='Window Title :)')
frame.Show()
app.MainLoop()
期望:
实际结果:
摘要:
为什么create_grid_view()
函数在从init_ux()
函数调用时显示正确的网格,而不是open_dialog()
函数?
提前致谢!
你有panel.SetSizer(sizer)
使用的地方:
panel.SetSizerAndFit(sizer)
或使用:
panel.SetSizer(sizer)
panel.Fit()