【发布时间】：2015-04-21 06:59:09
【问题描述】：
我在可调整大小的可滚动面板中有一个 wxgrid。我在 wxgrid 中动态添加/隐藏/显示行。当我尝试在 wxgrid 中添加/显示更多行时，它不适合面板中的可用空间，而是占据了它之前使用 wxgrid 滚动条占用的一小块区域。
像这样：
但在我调整面板或框架的大小后，它就非常适合了。像这样：
如何在不调整面板大小的情况下使其适合？
我尝试了 wx.EXPAND、wx.GROW、wx.ALL 的所有组合，同时将网格添加到 sizer 并尝试了 gridobj.Layout() 没有任何效果。有什么想法吗？
我在 windows 7 上使用 wx 3.0 和 python 2.7
编辑： 这是我的代码
controls.py
import wx
import wx.grid
import wx.combo
class SimpleGrid(wx.grid.Grid):
def __init__(self, parent):
wx.grid.Grid.__init__(self, parent, -1)
self.CreateGrid(10, 5)
for i in range(10):
self.SetRowLabelValue(i,str(i))
class ListCtrlComboPopup(wx.ListCtrl, wx.combo.ComboPopup):
def __init__(self,parent):
self.gfobj = parent
self.PostCreate(wx.PreListCtrl())
self.parent = parent
wx.combo.ComboPopup.__init__(self)
def AddItem(self, txt):
self.InsertStringItem(self.GetItemCount(), txt)
self.Select(0)
def GetSelectedItems(self):
del self.gfobj.selection[:]
current = -1
while True:
next = self.GetNextSelected(current)
if next == -1:
return
self.gfobj.selection.append(next)
current = next
def onItemSelected(self, event):
item = event.GetItem()
self.GetSelectedItems()
self.parent.draw_plot()
def onItemDeSelected(self, event):
self.GetSelectedItems()
self.parent.draw_plot()
def Init(self):
""" This is called immediately after construction finishes. You can
use self.GetCombo if needed to get to the ComboCtrl instance. """
self.value = -1
self.curitem = -1
def Create(self, parent):
""" Create the popup child control. Return True for success. """
wx.ListCtrl.Create(self, parent,
style=wx.LC_LIST|wx.SIMPLE_BORDER)
self.Bind(wx.EVT_LIST_ITEM_SELECTED, self.onItemSelected)
self.Bind(wx.EVT_LIST_ITEM_DESELECTED, self.onItemDeSelected)
return True
def GetControl(self):
""" Return the widget that is to be used for the popup. """
return self
def SetStringValue(self, val):
""" Called just prior to displaying the popup, you can use it to
'select' the current item. """
idx = self.FindItem(-1, val)
if idx != wx.NOT_FOUND:
self.Select(idx)
def GetStringValue(self):
""" Return a string representation of the current item. """
a = self.GetItemText(self.value)
if self.value >= 0:
return a
return ""
def OnPopup(self):
""" Called immediately after the popup is shown. """
self.state = []
for i in range(self.GetItemCount()):
item = self.GetItem(itemId=i)
self.state.append(item.GetState())
#print self.state
wx.combo.ComboPopup.OnPopup(self)
def OnDismiss(self):
" Called when popup is dismissed. """
wx.combo.ComboPopup.OnDismiss(self)
main.py
import wx
import wx.lib.scrolledpanel
from controls import SimpleGrid
from controls import ListCtrlComboPopup
class GraphFrame(wx.Frame):
title = 'Demo: Data Trending Tool'
def __init__(self):
self.selection = []
self.displaySize = wx.DisplaySize()
wx.Frame.__init__(self, None, -1, self.title,
style = wx.DEFAULT_FRAME_STYLE,
size = (self.displaySize[0]/2, self.displaySize[1]/2))
self.containingpanel = wx.Panel(self, -1)
self.toppanel = wx.Panel(self, -1)
self.splittedwin = wx.SplitterWindow(self.containingpanel, wx.ID_ANY, style=wx.SP_3D | wx.SP_BORDER)
self.splittedwin.SetMinimumPaneSize(20)
self.gridpanel = wx.lib.scrolledpanel.ScrolledPanel(self.splittedwin,-1, style = wx.SUNKEN_BORDER)
self.panel = wx.lib.scrolledpanel.ScrolledPanel(self.splittedwin,-1, style = wx.SUNKEN_BORDER)
#### GRID
self.grid = SimpleGrid(self.gridpanel)
self.gridpanelsizer= wx.BoxSizer(wx.HORIZONTAL)
self.gridpanelsizer.Add(self.grid, wx.GROW)
self.gridpanel.SetSizer(self.gridpanelsizer)
self.gridpanelsizer.Fit(self)
#### COMBOBOX
self.cc = wx.combo.ComboCtrl(self.toppanel, style=wx.CB_READONLY, size=(200,-1), )
self.cc.SetPopupMaxHeight(140)
popup = ListCtrlComboPopup(self)
self.cc.SetPopupControl(popup)
self.cc.SetText("--select--")
# Add some items to the listctrl
for i in range(10):
popup.AddItem(str(i))
#### SIZER FOR COMBOBOX
self.cbpanelsizer= wx.BoxSizer(wx.HORIZONTAL)
self.cbpanelsizer.Add(self.cc, border = 5,flag = wx.LEFT)
self.toppanel.SetSizer(self.cbpanelsizer)
self.splittedwin.SplitHorizontally(self.gridpanel,self.panel,100)
##### SIZER FOR CONTAININGPANEL
self.cpsizer = wx.BoxSizer(wx.VERTICAL)
self.cpsizer.Add(self.splittedwin, 1, wx.EXPAND, 0)
self.containingpanel.SetSizer(self.cpsizer)
self.cpsizer.Fit(self.containingpanel)
mainsizer = wx.BoxSizer(wx.VERTICAL)
mainsizer.Add(self.toppanel, 0, wx.EXPAND)
mainsizer.Add(self.containingpanel, 1, wx.EXPAND)
self.SetSizerAndFit(mainsizer)
self.panel.SetAutoLayout(1)
self.panel.SetupScrolling()
self.gridpanel.SetAutoLayout(1)
self.gridpanel.SetupScrolling()
self.draw_plot()
def draw_plot(self):
for i in range(10):
if i in self.selection:
self.grid.ShowRow(i)
else:
self.grid.HideRow(i)
self.Layout()
#self.gridpanel.Layout()
if __name__ == "__main__":
app = wx.PySimpleApp()
app.frame = GraphFrame()
app.frame.Show()
app.MainLoop()
模拟： 1. 运行main.py，它会在一个面板中显示一个带有单行网格的分割窗口。
- 使用下拉菜单选择多个项目（按住 ctrl 并选择）
- wxgrid 被 wxgrid 滚动条限制在一个行空间中
- 使用拆分器调整面板大小或调整窗口大小。现在所有选定的行都按要求显示。
【问题讨论】：
-
添加新数据/行后是否尝试在窗口上使用 self.Fit()？
-
是的，但这也没用
-
@Lokla 或者可能遗漏了什么。我已经编辑了我的问题以包含一个简化的代码。
标签： python-2.7 wxpython wxwidgets