我正在尝试使用包含GenericDirCtrl wiget的左窗格创建一个splitwindow框架，这将允许我选择包含pdf文件的目录/文件夹，然后我想以按钮的形式在右窗格中显示文件找到每个文件。我能够按需要显示UI，但我不确定如何使用GenricDirCtrl小部件中选择的文件夹刷新右窗格。能帮我解决一下这个问题吗？我尝试声明一个全局变种但是没有用，我对wxpython很新，所以请原谅我缺乏技巧..
#!/usr/bin/env python
import datetime
import glob
import os
import sys
import wx
import wx.lib.scrolledpanel as scrolled
global directory
global pdfpath
directory = []
print directory
if directory != []:
valid_pdffiles = []
pdfpath = []
valid_pdffiles += [each for each in os.listdir(directory) if each.endswith('.pdf')]
#print valid_pdffiles
for files in valid_pdffiles:
pdfpath.append(str(directory + "/" + files))
print pdfpath
else:
pdfpath = ['testing_blank.pdf']
for files in pdfpath:
print "pdf - " + files
class scrolledpanel(scrolled.ScrolledPanel):
def __init__(self,parent,id):
scrolled.ScrolledPanel.__init__(self,parent, id,style = wx.TAB_TRAVERSAL|wx.SUNKEN_BORDER)
self.SetBackgroundColour(wx.NamedColour("pink"))
self.sizer = wx.WrapSizer()
self.SetupScrolling(scroll_x = False)
self.parent = parent
self.addButton(self.sizer , 1000)
self.SetSizer(self.sizer )
self.Bind(wx.EVT_SIZE, self.onSize)
self.SetAutoLayout(1)
self.SetupScrolling()
self.Layout()
def onSize(self, evt):
size = self.GetSize()
vsize = self.GetVirtualSize()
self.SetVirtualSize((size[0], vsize[1]))
evt.Skip()
def OnButton(self, Event, button_label):
print "In OnButton:", button_label
def addButton(self, sizer, num):
print "Executed addButton here..."
for files in pdfpath:
#print "PDFFROMADDBUTTON - " + files
btn =wx.Button( self, wx.ID_ANY, "btn_"+str(files), wx.DefaultPosition, size=(100,100), style=wx.ALIGN_CENTER)
sizer.Add(btn, 0, wx.ALL, 10)
class MainWindow(wx.Frame):
def __init__(self, parent=None, start_fresh=False):
wx.Frame.__init__(self, parent, wx.ID_ANY, u'This is App title..', wx.DefaultPosition, size=(800,600), name=u'Thisisthename..', style=wx.DEFAULT_FRAME_STYLE)
locale = wx.Locale(wx.LANGUAGE_ENGLISH)
self._init_contents()
def _init_contents(self):
self.statusBar = self.CreateStatusBar()
sizer = wx.BoxSizer(orient=wx.VERTICAL)
self.dirPicker = wx.DirPickerCtrl (self, id=wx.ID_ANY, style=wx.DIRP_DIR_MUST_EXIST | wx.DIRP_USE_TEXTCTRL)
sizer.Add(
self.dirPicker,
0, # make vertically unstretchable
wx.EXPAND | # make horizontally stretchable
wx.ALL, # and make border all around
)
self.splitter1 = wx.SplitterWindow(self, id=wx.ID_ANY, style=wx.SP_3D)
sizer.Add(
self.splitter1,
1, # make vertically stretchable
wx.EXPAND | # make horizontally stretchable
wx.ALL, # and make border all around
)
self.textCtrl1 = scrolledpanel(self.splitter1,-1)
self.dir = wx.GenericDirCtrl(self.splitter1, wx.ID_ANY,
dir="C:/python27",
filter="*.pdf"
)
self.splitter1.SplitVertically(self.dir, self.textCtrl1)
self.splitter1.SetSashGravity(0.2)
tree = self.dir.GetTreeCtrl()
wx.EVT_TREE_SEL_CHANGED(self, tree.GetId(), self.OnSelectTreeCtrlItem)
self.Bind(wx.EVT_DIRPICKER_CHANGED, self.OnSelectDirPicker)
self.SetSizerAndFit(sizer)
def OnSelectTreeCtrlItem(self, event):
'''user selected something in the directory list tree control'''
if not isinstance(event, wx.Event):
self.setStatusText( "Not an event: %s" % str(event) )
event.Skip()
return
selectedItem = self.dir.GetPath()
print 'selected: ' + selectedItem
self.selectedDir = selectedItem
scrolledpanel.refresh
def OnSelectDirPicker(self, event):
'''user changed the text or browsed to a directory in the picker'''
if not isinstance(event, wx.Event):
self.setStatusText( "Not an event: %s" % str(event) )
event.Skip()
return
selectedItem = self.dirPicker.GetPath()
print 'selectedDir: ' + selectedItem
def main():
'''presents the GUI'''
app = wx.App()
win = MainWindow(None)
win.Show()
app.MainLoop()
if __name__ == '__main__':
main()
建议后编辑代码：
#!/usr/bin/env python
import datetime
import glob
import os
import sys
import wx
import wx.lib.scrolledpanel as scrolled
global directory
global pdfpath
directory = []
print directory
if directory != []:
valid_pdffiles = []
pdfpath = []
valid_pdffiles += [each for each in os.listdir(directory) if each.endswith('.pdf')]
#print valid_pdffiles
for files in valid_pdffiles:
pdfpath.append(str(directory + "/" + files))
print pdfpath
else:
pdfpath = ['testing_blank.pdf']
for files in pdfpath:
print "pdf - " + files
class scrolledpanel(scrolled.ScrolledPanel):
def __init__(self,parent,id):
scrolled.ScrolledPanel.__init__(self,parent, id,style = wx.TAB_TRAVERSAL|wx.SUNKEN_BORDER)
self.SetBackgroundColour(wx.NamedColour("pink"))
self.sizer = wx.WrapSizer()
self.SetupScrolling(scroll_x = False)
self.parent = parent
self.addButton()
self.SetSizer(self.sizer )
self.Bind(wx.EVT_SIZE, self.onSize)
self.SetAutoLayout(1)
self.SetupScrolling()
self.Layout()
def onSize(self, evt):
size = self.GetSize()
vsize = self.GetVirtualSize()
self.SetVirtualSize((size[0], vsize[1]))
evt.Skip()
def OnButton(self, Event, button_label):
print "In OnButton:", button_label
def addButton(self):
print "Executed addButton here..."
self.sizer.DeleteWindows() # destroy all the chilren this sizer has
global pdfpath
print pdfpath
for files in pdfpath:
#print "PDFFROMADDBUTTON - " + files
btn =wx.Button( self, wx.ID_ANY, "btn_"+str(files), wx.DefaultPosition, size=(100,100), style=wx.ALIGN_CENTER)
btn.SetToolTipString(str(files))
self.sizer.Add(btn, 0, wx.ALL, 10)
self.sizer.Layout()
self.FitInside()
#self.Layout()
class MainWindow(wx.Frame):
def __init__(self, parent=None, start_fresh=False):
wx.Frame.__init__(self, parent, wx.ID_ANY, u'This is App title..', wx.DefaultPosition, size=(800,600), name=u'Thisisthename..', style=wx.DEFAULT_FRAME_STYLE)
locale = wx.Locale(wx.LANGUAGE_ENGLISH)
self._init_contents()
def _init_contents(self):
self.statusBar = self.CreateStatusBar()
sizer = wx.BoxSizer(orient=wx.VERTICAL)
self.dirPicker = wx.DirPickerCtrl (self, id=wx.ID_ANY, style=wx.DIRP_DIR_MUST_EXIST | wx.DIRP_USE_TEXTCTRL)
sizer.Add(
self.dirPicker,
0, # make vertically unstretchable
wx.EXPAND | # make horizontally stretchable
wx.ALL, # and make border all around
)
self.splitter1 = wx.SplitterWindow(self, id=wx.ID_ANY, style=wx.SP_3D)
sizer.Add(
self.splitter1,
1, # make vertically stretchable
wx.EXPAND | # make horizontally stretchable
wx.ALL, # and make border all around
)
self.textCtrl1 = scrolledpanel(self.splitter1,-1)
self.dir = wx.GenericDirCtrl(self.splitter1, wx.ID_ANY,
dir="C:/python27",
filter="*.pdf"
)
self.splitter1.SplitVertically(self.dir, self.textCtrl1)
self.splitter1.SetSashGravity(0.2)
tree = self.dir.GetTreeCtrl()
wx.EVT_TREE_SEL_CHANGED(self, tree.GetId(), self.OnSelectTreeCtrlItem)
self.Bind(wx.EVT_DIRPICKER_CHANGED, self.OnSelectDirPicker)
self.SetSizerAndFit(sizer)
def OnSelectTreeCtrlItem(self, event):
'''user selected something in the directory list tree control'''
if not isinstance(event, wx.Event):
self.setStatusText( "Not an event: %s" % str(event) )
event.Skip()
return
selectedItem = self.dir.GetPath()
print 'selected: ' + selectedItem
self.selectedDir = selectedItem
global pdfpath
pdfpath = selectedItem
from os import listdir
from os.path import isfile, join
pdfpath = [f for f in listdir(pdfpath) if isfile(join(pdfpath, f))]
print pdfpath
self.textCtrl1.addButton()
def OnSelectDirPicker(self, event):
'''user changed the text or browsed to a directory in the picker'''
if not isinstance(event, wx.Event):
self.setStatusText( "Not an event: %s" % str(event) )
event.Skip()
return
selectedItem = self.dirPicker.GetPath()
print 'selectedDir: ' + selectedItem
global pdfpath
pdfpath = selectedItem
from os import listdir
from os.path import isfile, join
pdfpath = [f for f in listdir(pdfpath) if isfile(join(pdfpath, f))]
print pdfpath
self.textCtrl1.addButton()
def main():
'''presents the GUI'''
app = wx.App()
win = MainWindow(None)
win.Show()
app.MainLoop()
if __name__ == '__main__':
main()
答案 0 :(得分：1)
我认为你需要自己重新填充按钮给sizer。
基本上，addButton方法可以修改为：
def addButton(self):
print "Executed addButton here..."
self.sizer.DeleteWindows() # destroy all the chilren this sizer has
for files in pdfpath:
#print "PDFFROMADDBUTTON - " + files
btn =wx.Button( self, wx.ID_ANY, "btn_"+str(files), wx.DefaultPosition, size=(100,100), style=wx.ALIGN_CENTER)
self.sizer.Add(btn, 0, wx.ALL, 10)
self.Layout()
sizer已经是一个类成员，因此您可以将其称为self.sizer，无需将其作为arg传递。
此外，您必须刷新OnSelectTreeCtrlItem中的pdf文件列表，如：
def OnSelectTreeCtrlItem(self, event):
'''user selected something in the directory list tree control'''
if not isinstance(event, wx.Event):
self.setStatusText( "Not an event: %s" % str(event) )
event.Skip()
return
selectedItem = os.path.dirname(self.dir.GetPath())
print 'selected: ' + selectedItem
self.selectedDir = selectedItem
global pdfpath
pdfpath = []
pattern = os.path.join(selectedItem, '*.pdf')
for f in glob.glob(pattern):
pdfpath.append(f)
self.textCtrl1.addButton()