Python: 右键单击 objectlistview 未显示所选项目名称
Python: Right click on objectlistview not showing item name selected
我一直在使用 http://wiki.wxpython.org/PopupMenuOnRightClick 下所述的示例。
右键单击某个项目时的预期输出为 Perform <action> on <item selected>。但是我得到的输出是 Perform <action> on "."
我用来测试例子的代码是：
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并选择该项目的操作时获得相应的项目名称？
备注：
- 我正在使用 wxpython 2.7.2.0 并在 Python 2.5 和 Python 2.7
下进行了测试
- python: Right Click on list menu not showing item selected 下已经有人问过这个问题。然而，提供的解决方案（将 GetText 更改为 GetString）并未达到预期结果。
要在 RightClick 事件处理程序中获取选定的 object，您可以使用 objectlistviews GetSelectedObject() 方法，下面的代码被修改为使用此方法，然后显示选定的 object的标题。
我认为您不会从事件 wx.EVT_LIST_ITEM_RIGHT_CLICK 中获得选定的 object，因为它不是 objectlistview 特定事件，它是一个普通的 listview 事件。
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()
我一直在使用 http://wiki.wxpython.org/PopupMenuOnRightClick 下所述的示例。
右键单击某个项目时的预期输出为 Perform <action> on <item selected>。但是我得到的输出是 Perform <action> on "."
我用来测试例子的代码是：
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并选择该项目的操作时获得相应的项目名称？
备注：
- 我正在使用 wxpython 2.7.2.0 并在 Python 2.5 和 Python 2.7 下进行了测试
- python: Right Click on list menu not showing item selected 下已经有人问过这个问题。然而，提供的解决方案（将 GetText 更改为 GetString）并未达到预期结果。
要在 RightClick 事件处理程序中获取选定的 object，您可以使用 objectlistviews GetSelectedObject() 方法，下面的代码被修改为使用此方法，然后显示选定的 object的标题。
我认为您不会从事件 wx.EVT_LIST_ITEM_RIGHT_CLICK 中获得选定的 object，因为它不是 objectlistview 特定事件，它是一个普通的 listview 事件。
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()