Python:右键单击objectlistview未显示选择的项目名称 [英] Python: Right click on objectlistview not showing item name selected
本文介绍了Python:右键单击objectlistview未显示选择的项目名称的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我一直在使用 http://wiki.wxpython.org/PopupMenuOnRightClick 下的示例.
I have been working with example stated under http://wiki.wxpython.org/PopupMenuOnRightClick .
右键单击项目时预期的输出将是 Perform 上.但是我得到的输出是 Perform
The output expected when right clicking on an item would be Perform <action> on <item selected> . However the output I get is Perform <action> on "."
我用来测试示例的代码是:
The code I used to test the example is:
import wx
import sys
sys.path.append("..")
from ObjectListView import ObjectListView, ColumnDefn
### 2. Launcher creates wxMenu. ###
menu_titles = [ "Open",
"Properties",
"Rename",
"Delete" ]
menu_title_by_id = {}
for title in menu_titles:
menu_title_by_id[ wx.wx.NewId() ] = title
class Track(object):
"""
Simple minded object that represents a song in a music library
"""
def __init__(self, title, artist, album):
self.title = title
self.artist = artist
self.album = album
def GetTracks():
"""
Return a collection of tracks
"""
return [
Track("Sweet Lullaby", "Deep Forest", "Deep Forest"),
Track("Losing My Religion", "U2", "Out of Time"),
Track("En el Pais de la Libertad", "Leon Gieco", "Leon Gieco"),
]
class MyFrame(wx.Frame):
def __init__(self, *args, **kwds):
wx.Frame.__init__(self, *args, **kwds)
self.Init()
def Init(self):
self.InitModel()
self.InitWidgets()
self.InitObjectListView()
def InitModel(self):
self.songs = GetTracks()
def InitWidgets(self):
panel = wx.Panel(self, -1)
sizer_1 = wx.BoxSizer(wx.VERTICAL)
sizer_1.Add(panel, 1, wx.ALL|wx.EXPAND)
self.SetSizer(sizer_1)
self.myOlv = ObjectListView(panel, -1, style=wx.LC_REPORT|wx.SUNKEN_BORDER)
sizer_2 = wx.BoxSizer(wx.VERTICAL)
sizer_2.Add(self.myOlv, 1, wx.ALL|wx.EXPAND, 4)
panel.SetSizer(sizer_2)
self.Layout()
def InitObjectListView(self):
self.myOlv.SetColumns([
ColumnDefn("Title", "left", 120, "title"),
ColumnDefn("Artist", "left", 100, "artist"),
ColumnDefn("Album", "left", 100, "album")
])
self.myOlv.SetObjects(self.songs)
self.myOlv.Bind(wx.EVT_LIST_ITEM_RIGHT_CLICK, self.RightClick)
def RightClick(self,event):
# record what was clicked
self.list_item_clicked = right_click_context = event.GetString()
menu = wx.wx.Menu()
menu.Bind(wx.EVT_MENU, self.MenuSelectionCb)
for (id,title) in menu_title_by_id.items():
### 3. Launcher packs menu with Append. ###
menu.Append( id, title )
### 5. Launcher displays menu with call to PopupMenu, invoked on the source component, passing event's GetPoint. ###
#self.frame.PopupMenu( menu, event.GetPoint() )
frame_1.PopupMenu(menu, event.GetPoint() )
menu.Destroy() # destroy to avoid mem leak
def MenuSelectionCb( self, event ):
# do something
operation = menu_title_by_id[ event.GetId() ]
target = self.list_item_clicked
print 'Perform "%(operation)s" on "%(target)s."' % vars()
class MyPopupMenu(wx.Menu):
def __init__(self, parent):
super(MyPopupMenu, self).__init__()
self.parent = parent
mmi = wx.MenuItem(self, wx.NewId(), 'Minimize')
self.AppendItem(mmi)
self.Bind(wx.EVT_MENU, self.OnMinimize, mmi)
cmi = wx.MenuItem(self, wx.NewId(), 'Close')
self.AppendItem(cmi)
self.Bind(wx.EVT_MENU, self.OnClose, cmi)
def OnMinimize(self, e):
self.parent.Iconize()
def OnClose(self, e):
self.parent.Close()
if __name__ == '__main__':
app = wx.PySimpleApp(1)
wx.InitAllImageHandlers()
frame_1 = MyFrame(None, -1, "ObjectListView Track Test")
app.SetTopWindow(frame_1)
frame_1.Show()
app.MainLoop()
那么，如何确保在右键单击该项目并选择该项目的操作时获得相应的项目名称?
So, how to ensure to get the corresponding item name when right clicking and selecting an action for that item?
注意事项:
- 我使用的是 wxpython 2.7.2.0 并在 Python 2.5 和 Python 2.7 下进行了测试
- 这已经在 python: 右单击列表菜单未显示所选项目.然而，提供的解决方案(将 GetText 更改为 GetString)没有达到预期的结果.
- I am using wxpython 2.7.2.0 and tested it under Python 2.5 and Python 2.7
- This has been asked already under python: Right Click on list menu not showing item selected . However the solution provided (to change GetText to GetString) hadn't the expected results.
推荐答案
要在 RightClick 事件处理程序中获取所选对象可以使用 objectlistviews GetSelectedObject() 方法，修改下面的代码使用此方法，然后显示所选对象标题.
To get the selected object inside of the RightClick event handler you can use objectlistviews GetSelectedObject() method, the code below is modified to use this method and then display the selected objects title.
我认为您不会从事件 wx.EVT_LIST_ITEM_RIGHT_CLICK 中获取所选对象，因为它不是特定于 objectlistview 的事件，而是一个普通的 listview 事件.
I don't think you will get the selected object from the event wx.EVT_LIST_ITEM_RIGHT_CLICK as it is not a objectlistview specific event, its a plain listview event.
import wx
import sys
sys.path.append("..")
from ObjectListView import ObjectListView, ColumnDefn
### 2. Launcher creates wxMenu. ###
menu_titles = [ "Open",
"Properties",
"Rename",
"Delete" ]
menu_title_by_id = {}
for title in menu_titles:
menu_title_by_id[ wx.NewId() ] = title
class Track(object):
"""
Simple minded object that represents a song in a music library
"""
def __init__(self, title, artist, album):
self.title = title
self.artist = artist
self.album = album
def GetTracks():
"""
Return a collection of tracks
"""
return [
Track("Sweet Lullaby", "Deep Forest", "Deep Forest"),
Track("Losing My Religion", "U2", "Out of Time"),
Track("En el Pais de la Libertad", "Leon Gieco", "Leon Gieco"),
]
class MyFrame(wx.Frame):
def __init__(self, *args, **kwds):
wx.Frame.__init__(self, *args, **kwds)
self.Init()
def Init(self):
self.InitModel()
self.InitWidgets()
self.InitObjectListView()
def InitModel(self):
self.songs = GetTracks()
def InitWidgets(self):
panel = wx.Panel(self, -1)
sizer_1 = wx.BoxSizer(wx.VERTICAL)
sizer_1.Add(panel, 1, wx.ALL | wx.EXPAND)
self.SetSizer(sizer_1)
self.myOlv = ObjectListView(panel, -1, style=wx.LC_REPORT | wx.SUNKEN_BORDER)
sizer_2 = wx.BoxSizer(wx.VERTICAL)
sizer_2.Add(self.myOlv, 1, wx.ALL | wx.EXPAND, 4)
panel.SetSizer(sizer_2)
self.Layout()
def InitObjectListView(self):
self.myOlv.SetColumns([
ColumnDefn("Title", "left", 120, "title"),
ColumnDefn("Artist", "left", 100, "artist"),
ColumnDefn("Album", "left", 100, "album")
])
self.myOlv.SetObjects(self.songs)
self.myOlv.Bind(wx.EVT_LIST_ITEM_RIGHT_CLICK, self.RightClick)
def RightClick(self, event):
# record what was clicked
self.list_item_clicked = self.myOlv.GetSelectedObject()
menu = wx.Menu()
menu.Bind(wx.EVT_MENU, self.MenuSelectionCb)
for (id_, title) in menu_title_by_id.items():
### 3. Launcher packs menu with Append. ###
menu.Append(id_, title)
### 5. Launcher displays menu with call to PopupMenu, invoked on the source component, passing event's GetPoint. ###
# self.frame.PopupMenu( menu, event.GetPoint() )
frame_1.PopupMenu(menu, event.GetPoint())
menu.Destroy() # destroy to avoid mem leak
def MenuSelectionCb(self, event):
# do something
operation = menu_title_by_id[ event.GetId() ]
target = self.list_item_clicked.title
print 'Perform "%(operation)s" on "%(target)s."' % vars()
class MyPopupMenu(wx.Menu):
def __init__(self, parent):
super(MyPopupMenu, self).__init__()
self.parent = parent
mmi = wx.MenuItem(self, wx.NewId(), 'Minimize')
self.AppendItem(mmi)
self.Bind(wx.EVT_MENU, self.OnMinimize, mmi)
cmi = wx.MenuItem(self, wx.NewId(), 'Close')
self.AppendItem(cmi)
self.Bind(wx.EVT_MENU, self.OnClose, cmi)
def OnMinimize(self, e):
self.parent.Iconize()
def OnClose(self, e):
self.parent.Close()
if __name__ == '__main__':
app = wx.App(True)
wx.InitAllImageHandlers()
frame_1 = MyFrame(None, -1, "ObjectListView Track Test")
app.SetTopWindow(frame_1)
frame_1.Show()
app.MainLoop()
这篇关于Python:右键单击objectlistview未显示选择的项目名称的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
