[英]How to generate new pages on wxPython notebook with close buttons?
我有以下玩具示例代碼,其中在wxPython
筆記本中創建了兩個選項卡。 有一個用於添加新頁面的按鈕,並且在每個頁面中我都希望有一個用於關閉頁面的按鈕。 但是,以下代碼在單擊關閉按鈕時不起作用。
import wx
class TabPanel(wx.Panel):
def __init__(self, parent, pageNum):
self.parent = parent
self.pageNum = pageNum
wx.Panel.__init__(self, parent=parent)
btn = wx.Button(self, label="Close Page " + str(pageNum))
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(btn, 0, wx.ALL, 10)
self.SetSizer(sizer)
btn.Bind(wx.EVT_BUTTON, self.closeTab)
def closeTab(self,event):
self.Close()
class DemoFrame(wx.Frame):
def __init__(self):
wx.Frame.__init__(self, None, wx.ID_ANY, "Notebook", size=(600,400))
panel = wx.Panel(self)
self.tab_num = 2
self.notebook = wx.Notebook(panel)
tabOne = TabPanel(self.notebook, 1)
self.notebook.AddPage(tabOne, "Page 1")
tabTwo = TabPanel(self.notebook, 2)
self.notebook.AddPage(tabTwo, "Page 2")
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(self.notebook, 1, wx.ALL|wx.EXPAND, 5)
btn = wx.Button(panel, label="Add Page")
btn.Bind(wx.EVT_BUTTON, self.addPage)
sizer.Add(btn)
panel.SetSizer(sizer)
self.Layout()
self.Show()
def addPage(self, event):
self.tab_num += 1
new_tab = TabPanel(self.notebook, self.tab_num)
self.notebook.AddPage(new_tab, "Page %s" % self.tab_num)
if __name__ == "__main__":
app = wx.App(False)
frame = DemoFrame()
app.MainLoop()
該代碼在窗口下方產生:
關閉按鈕不執行任何操作。
如何更改代碼以獲取關閉按鈕以關閉其所在的相應頁面?
如果你使用它可以更容易GetSelection()
一個方法wx.Notebook
。 該方法返回當前所選頁面的索引。 之后,您可以直接刪除所選頁面。
帶有注釋的代碼(####):
import wx
class TabPanel(wx.Panel):
def __init__(self, parent, pageNum):
self.parent = parent
self.pageNum = pageNum
wx.Panel.__init__(self, parent=parent)
btn = wx.Button(self, label="Close Page " + str(pageNum))
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(btn, 0, wx.ALL, 10)
self.SetSizer(sizer)
btn.Bind(wx.EVT_BUTTON, self.closeTab)
def closeTab(self,event):
#### Just one line and no extra variable to remove the selected page
self.parent.RemovePage(self.parent.GetSelection())
class DemoFrame(wx.Frame):
def __init__(self):
wx.Frame.__init__(self, None, wx.ID_ANY, "Notebook", size=(600,400))
panel = wx.Panel(self)
self.tab_num = 2
self.notebook = wx.Notebook(panel)
tabOne = TabPanel(self.notebook, 1)
self.notebook.AddPage(tabOne, "Page 1")
tabTwo = TabPanel(self.notebook, 2)
self.notebook.AddPage(tabTwo, "Page 2")
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(self.notebook, 1, wx.ALL|wx.EXPAND, 5)
btn = wx.Button(panel, label="Add Page")
btn.Bind(wx.EVT_BUTTON, self.addPage)
sizer.Add(btn)
panel.SetSizer(sizer)
self.Layout()
self.Show()
def addPage(self, event):
self.tab_num += 1
new_tab = TabPanel(self.notebook, self.tab_num)
self.notebook.AddPage(new_tab, "Page %s" % self.tab_num)
if __name__ == "__main__":
app = wx.App(False)
frame = DemoFrame()
app.MainLoop()
不知道是否有更好的解決方案,而是添加一個全局變量tabs
,該列表是一個包含實際選項卡的列表,並且對closeTab
函數進行了一些更改。
關閉選項卡的方法是使用Notebook
對象中的RemovePage
函數。
import wx
tabs = [1,2]
class TabPanel(wx.Panel):
def __init__(self, parent, pageNum):
self.parent = parent
self.pageNum = pageNum
wx.Panel.__init__(self, parent=parent)
btn = wx.Button(self, label="Close Page " + str(pageNum))
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(btn, 0, wx.ALL, 10)
self.SetSizer(sizer)
btn.Bind(wx.EVT_BUTTON, self.closeTab)
def closeTab(self,event):
notebook = self.parent
notebook.RemovePage(tabs.index(self.pageNum))
tabs.remove(self.pageNum)
class DemoFrame(wx.Frame):
def __init__(self):
wx.Frame.__init__(self, None, wx.ID_ANY, "Notebook", size=(600,400))
panel = wx.Panel(self)
self.tab_num = len(tabs)
self.notebook = wx.Notebook(panel)
tabOne = TabPanel(self.notebook, 1)
self.notebook.AddPage(tabOne, "Page 1")
tabTwo = TabPanel(self.notebook, 2)
self.notebook.AddPage(tabTwo, "Page 2")
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(self.notebook, 1, wx.ALL|wx.EXPAND, 5)
btn = wx.Button(panel, label="Add Page")
btn.Bind(wx.EVT_BUTTON, self.addPage)
sizer.Add(btn)
panel.SetSizer(sizer)
self.Layout()
self.Show()
def addPage(self, event):
self.tab_num += 1
new_tab = TabPanel(self.notebook, self.tab_num)
self.notebook.AddPage(new_tab, "Page %s" % self.tab_num)
tabs.append(self.tab_num)
print tabs
if __name__ == "__main__":
app = wx.App(False)
frame = DemoFrame()
app.MainLoop()
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