在我的应用程序中，我想在 scrolledPanel 中处理 sizer 的分配/解除分配。在我的第一次尝试中，我隐藏/显示了 sizer 的内容，但这导致了很多问题。隐藏的 sizer 会“呆在那里”，有效地占用空间，它不会正确更新，等等。效果更好的解决方案是一遍又一遍地破坏和创建它们。
但这也是它的问题。scrolledPanel 在我更新它时闪烁，似乎资源很重。在我的真实应用程序中，我将按钮和复选框的引用放在列表中，处理它们变得更加困难。
所以，如果有人有更好的解决方案，我会全力以赴！
我有一个隐藏/显示的解决方案！重置scrolledPanel的大小以仅容纳它当前拥有的大小的东西也会很好。
谢谢！
import wx
import wx.lib.scrolledpanel as scrolled
class WaterDataBase(wx.Frame):
def __init__(self, parent):
wx.Frame.__init__(self, parent)
self.setupSizers()
self.setupData()
def setupSizers(self):
masterSizer = wx.BoxSizer(wx.HORIZONTAL)
itemsSizer = wx.BoxSizer(wx.VERTICAL)
itemsSizer.Add(self.addSearchControl(), flag=wx.ALL, border=7)
self.scrolledPanelSizer = wx.BoxSizer(wx.VERTICAL)
self.scrolled_panel = scrolled.ScrolledPanel(self, wx.ID_ANY, size=(200, 200))
self.scrolled_panel.SetSizer(self.scrolledPanelSizer)
itemsSizer.Add(self.scrolled_panel, flag=wx.ALL, border=7)
masterSizer.Add(itemsSizer)
self.scrolled_panel.SetupScrolling()
self.SetSizer(masterSizer)
def addSearchControl(self):
sizer = wx.BoxSizer(wx.HORIZONTAL)
self.searchField = wx.TextCtrl(self, -1)
self.searchField.Bind(wx.EVT_TEXT, self.OnSearched)
sizer.Add(self.searchField)
return sizer
def setupData(self):
self.words = "I'm trying to make this work, please. Let's keep it on! The day is beautiful today. Together we are stronger!".split()
for word in self.words:
self.addSizerToPanel(word)
def createSizer(self, word):
# Creates a sizer with a CheckBox and a StaticText to display.
sizer = wx.BoxSizer(wx.HORIZONTAL)
checkBox = wx.CheckBox(self.scrolled_panel, -1)
text = wx.StaticText(self.scrolled_panel, -1, word)
sizer.Add(checkBox, flag=wx.ALL, border=5)
sizer.Add(text, flag=wx.LEFT, border=5)
return sizer
def addSizerToPanel(self, word):
sizer = self.createSizer(word)
self.scrolledPanelSizer.Add(sizer, flag=wx.ALL, border=5)
def OnSearched(self, event):
query = self.searchField.GetValue().lower()
result = []
# If query's empty, print all words
if not query or query.isspace():
for word in self.words:
result.append(word)
else:
for word in self.words:
if word.lower().find(query) != -1:
result.append(word)
# Destroy all panel sizers and put exactly the ones we want.
self.scrolled_panel.DestroyChildren()
for word in result:
self.addSizerToPanel(word)
self.scrolled_panel.Layout()
self.scrolled_panel.Scroll(0, 0) # Using this to cause the scrollPanel get back to the top.
app = wx.App()
frame = WaterDataBase(None).Show()
app.MainLoop()
所以，看来我终于成功了。我仍然想要关于重置滚动面板大小的建议。xD
import wx
import wx.lib.scrolledpanel as scrolled
class Frame(wx.Frame):
def __init__(self, parent):
wx.Frame.__init__(self, parent)
self.sizerRefs = []
self.words = []
self.setupSizers()
self.setupData()
def setupSizers(self):
masterSizer = wx.BoxSizer(wx.HORIZONTAL)
itemsSizer = wx.BoxSizer(wx.VERTICAL)
itemsSizer.Add(self.addSearchControl(), flag=wx.ALL, border=7)
self.scrolledPanelSizer = wx.BoxSizer(wx.VERTICAL)
self.scrolled_panel = scrolled.ScrolledPanel(self, wx.ID_ANY, size=(200, 200))
self.scrolled_panel.SetSizer(self.scrolledPanelSizer)
itemsSizer.Add(self.scrolled_panel, flag=wx.ALL, border=7)
masterSizer.Add(itemsSizer)
self.scrolled_panel.SetupScrolling()
self.SetSizer(masterSizer)
def addSearchControl(self):
sizer = wx.BoxSizer(wx.HORIZONTAL)
self.searchField = wx.TextCtrl(self, -1)
self.searchField.Bind(wx.EVT_TEXT, self.OnSearched)
sizer.Add(self.searchField)
return sizer
def setupData(self):
self.words = "I'm trying to make this work, please. Let's keep it on! The day is beautiful today. Together we are stronger!".split()
for i in range(0, len(self.words)):
self.addSizerToPanel(i)
def createSizer(self, index):
sizer = wx.BoxSizer(wx.HORIZONTAL)
checkBox = wx.CheckBox(self.scrolled_panel, -1)
text = wx.StaticText(self.scrolled_panel, -1, self.words[index])
sizer.Add(checkBox, flag=wx.ALL, border=5)
sizer.Add(text, flag=wx.LEFT, border=5)
self.sizerRefs.append(sizer)
return sizer
def addSizerToPanel(self, index):
sizer = self.createSizer(index)
self.scrolledPanelSizer.Add(sizer, flag=wx.ALL, border=5)
def hideAllSizers(self):
for sizer in self.sizerRefs:
sizer.ShowItems(False)
def unhideSizer(self, index):
self.sizerRefs[index].ShowItems(True)
def OnSearched(self, event):
query = self.searchField.GetValue().lower()
result = [] # Storing the indexes of the words found
# If query's empty, print all words
if not query or query.isspace():
for i in range(0, len(self.words)):
result.append(i)
else:
for i in range(0, len(self.words)):
if self.words[i].lower().find(query) != -1:
result.append(i)
# Hides all panel sizers and unhide exactly the ones we want.
self.hideAllSizers()
for i in range(0, len(result)):
self.unhideSizer(result[i])
self.scrolled_panel.Layout()
self.scrolled_panel.Scroll(0, 0) # Using this to cause the scrollPanel get back to the top.
app = wx.App()
frame = Frame(None).Show()
app.MainLoop()