Python GtkTreeview; 如何在选择项目时刷新列表
我正在制作一个简单的文件管理器,但在我帖子标题提到的问题上遇到了困难。
首先,它会查看一个文件夹,生成一个项目列表,然后把这些项目添加到树形视图中。
如果点击了一个子文件夹,它就会变成当前的文件夹。我只需要把这个信息传回到一个函数里,让它读取并显示当前文件夹的内容(我想是这样)。
import gtk, os
class PyApp(gtk.Window):
def __init__(self):
super(PyApp, self).__init__()
self.set_size_request(250, 200)
self.set_position(gtk.WIN_POS_CENTER)
self.connect("destroy", gtk.main_quit)
self.set_title("SteveFM")
vbox = gtk.VBox(False, 8)
sw = gtk.ScrolledWindow()
sw.set_shadow_type(gtk.SHADOW_ETCHED_IN)
sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
vbox.pack_start(sw, True, True, 0)
store = self.create_model()
treeView = gtk.TreeView(store)
treeView.connect("row-activated", self.on_activated)
treeView.set_rules_hint(True)
sw.add(treeView)
self.create_columns(treeView)
self.add(vbox)
self.show_all()
# Take the names of files and subdirectories in
# the current directory and sort them into a list for treeview
def create_model(self):
store = gtk.ListStore(str)
dirList=os.listdir(os.getcwd())
dircontents = []
for item in dirList:
if item[0] != '.':
if os.path.isdir(item):
dircontents.append(['/'+item])
else:
dircontents.append([item])
dircontents.sort()
for act in dircontents:
store.append([act[0]])
return store
# If a file is clicked, open with leafpad.
# If a directory is clicked, change the current working directory to it
# and (my hurdle) replace the current treeview list with the contents of the
# new directory, just like a file manager.
def on_activated(self, widget, row, col):
model = widget.get_model()
target = model[row][0]
if target[0] != "/":
cmd = "leafpad "+target
os.system(cmd)
else:
os.chdir(os.getcwd()+target)
print os.getcwd() # Just for debugging
def create_columns(self, treeView):
rendererText = gtk.CellRendererText()
column = gtk.TreeViewColumn(None, rendererText, text=0)
column.set_sort_column_id(0)
treeView.append_column(column)
PyApp()
gtk.main()
1 个回答
1
我做的更改:
把
treeView
替换成self.treeView
,这样我在其他方法里就能更方便地访问它。在
on_activated
方法里,使用create_model
创建一个新的模型,并通过gtk.TreeView.set_model
把self.treeView
设置为使用这个模型。
看起来这样是有效的。代码如下:
import gtk, os
class PyApp(gtk.Window):
def __init__(self):
super(PyApp, self).__init__()
self.set_size_request(250, 200)
self.set_position(gtk.WIN_POS_CENTER)
self.connect("destroy", gtk.main_quit)
self.set_title("SteveFM")
vbox = gtk.VBox(False, 8)
sw = gtk.ScrolledWindow()
sw.set_shadow_type(gtk.SHADOW_ETCHED_IN)
sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
vbox.pack_start(sw, True, True, 0)
store = self.create_model()
self.treeView = gtk.TreeView(store)
self.treeView.connect("row-activated", self.on_activated)
self.treeView.set_rules_hint(True)
sw.add(self.treeView)
self.create_columns(self.treeView)
self.add(vbox)
self.show_all()
# Take the names of files and subdirectories in
# the current directory and sort them into a list for treeview
def create_model(self):
store = gtk.ListStore(str)
dirList=os.listdir(os.getcwd())
dircontents = []
for item in dirList:
if item[0] != '.':
if os.path.isdir(item):
dircontents.append(['/'+item])
else:
dircontents.append([item])
dircontents.sort()
for act in dircontents:
store.append([act[0]])
return store
# If a file is clicked, open with leafpad.
# If a directory is clicked, change the current working directory to it
# and (my hurdle) replace the current treeview list with the contents of the
# new directory, just like a file manager.
def on_activated(self, widget, row, col):
model = widget.get_model()
target = model[row][0]
if target[0] != "/":
cmd = "leafpad "+target
os.system(cmd)
else:
os.chdir(os.getcwd()+target)
print os.getcwd() # Just for debugging
self.treeView.set_model(self.create_model())
def create_columns(self, treeView):
rendererText = gtk.CellRendererText()
column = gtk.TreeViewColumn(None, rendererText, text=0)
column.set_sort_column_id(0)
self.treeView.append_column(column)
PyApp()
gtk.main()