在 wxPython 中使动态 scrolledPanel 更高效

如何解决在 wxPython 中使动态 scrolledPanel 更高效

在我的应用程序中，我想在 scrolledPanel 内处理 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 sizers 会“呆在那里”，有效地占用空间，不会及时更新，等等。更好的解决方案是一遍又一遍地销毁和创建它们。

但这也是它的问题。 scrolledPanel 在我更新时闪烁，并且似乎资源很重。在我的实际应用中，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，我会全神贯注！

我正在寻找隐藏/显示解决方案！重置 scrolledPanel 的大小以仅容纳它当前拥有的 sizer 的东西也很好。

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,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,border=5)
        sizer.Add(text,flag=wx.LEFT,border=5)

        return sizer

    def addSizerToPanel(self,word):
        sizer = self.createSizer(word)
        self.scrolledPanelSizer.Add(sizer,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，看来我终于做到了。我仍然需要有关重置 scrolledPanel 大小的建议。 xD

import wx
import wx.lib.scrolledpanel as scrolled

class Frame(wx.Frame):
    def __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(),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,self.words[index])

        sizer.Add(checkBox,border=5)

        self.sizerRefs.append(sizer)
        return sizer

    def addSizerToPanel(self,index):
        sizer = self.createSizer(index)
        self.scrolledPanelSizer.Add(sizer,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()