Tkinter 拖拽功能求助

liangychao

我用tkinter做了一个窗口，用treeview做了个文件浏览器，我现在想实现如下功能，可以把treeview中列出的文件拖扯出窗口，移动到指定的文件夹，并获取目标文件夹的路径，我用TkinterDND实现了这个功能，可以正常移动文件，但我无法获取文件位置，希望大神帮忙，谢谢！

ba21

TkinterDND2 就可以很简单的实现。TkinterDND不清楚。
示例代码：

1. # -*- coding: utf-8 -*-
   
2. 
   
3. import os
   
4. import platform
   
5. from tkinterdnd2 import *
   
6. try:
   
7.     from Tkinter import *
   
8.     from ScrolledText import ScrolledText
   
9. except ImportError:
   
10.     from tkinter import *
    
11.     from tkinter.scrolledtext import ScrolledText
    
12. 
    
13. root = TkinterDnD.Tk()
    
14. root.withdraw()
    
15. root.title('TkinterDnD demo')
    
16. root.grid_rowconfigure(1, weight=1, minsize=250)
    
17. root.grid_columnconfigure(0, weight=1, minsize=300)
    
18. root.grid_columnconfigure(1, weight=1, minsize=300)
    
19. 
    
20. def print_event_info(event):
    
21.     print('\nAction:', event.action)
    
22.     print('Supported actions:', event.actions)
    
23.     print('Mouse button:', event.button)
    
24.     print('Type codes:', event.codes)
    
25.     print('Current type code:', event.code)
    
26.     print('Common source types:', event.commonsourcetypes)
    
27.     print('Common target types:', event.commontargettypes)
    
28.     print('Data:', event.data)
    
29.     print('Event name:', event.name)
    
30.     print('Supported types:', event.types)
    
31.     print('Modifier keys:', event.modifiers)
    
32.     print('Supported source types:', event.supportedsourcetypes)
    
33.     print('Operation type:', event.type)
    
34.     print('Source types:', event.sourcetypes)
    
35.     print('Supported target types:', event.supportedtargettypes)
    
36.     print('Widget:', event.widget, '(type: %s)' % type(event.widget))
    
37.     print('X:', event.x_root)
    
38.     print('Y:', event.y_root, '\n')
    
39. 
    
40. Label(root, text='Drag and drop files here:').grid(
    
41.                     row=0, column=0, padx=10, pady=5)
    
42. Label(root, text='Drag and drop text here:').grid(
    
43.                     row=0, column=1, padx=10, pady=5)
    
44. buttonbox = Frame(root)
    
45. buttonbox.grid(row=2, column=0, columnspan=2, pady=5)
    
46. Button(buttonbox, text='Quit', command=root.quit).pack(
    
47.                     side=LEFT, padx=5)
    
48. 
    
49. ##############################################################################
    
50. ######   Basic demo window: a Listbox to drag & drop files                  ##
    
51. ######   and a Text widget to drag & drop text                              ##
    
52. ##############################################################################
    
53. listbox = Listbox(root, name='dnd_demo_listbox',
    
54.                     selectmode='extended', width=1, height=1)
    
55. listbox.grid(row=1, column=0, padx=5, pady=5, sticky='news')
    
56. text = Text(root, name='dnd_demo_text', wrap='word', undo=True, width=1, height=1)
    
57. text.grid(row=1, column=1, pady=5, sticky='news')
    
58. 
    
59. listbox.insert(END, os.path.abspath(__file__))
    
60. info = 'TkinterDnD demo\nDetected versions:\n'
    
61. info += '    Python: %s\n' % platform.python_version()
    
62. info += '    Tk    : %f\n' % TkVersion
    
63. info += '    Tkdnd : %s\n' % TkinterDnD.TkdndVersion
    
64. info += 'Use mouse button 3 to drag hightlighted text from the text box.\n'
    
65. text.insert(END, info)
    
66. 
    
67. # Drop callbacks can be shared between the Listbox and Text;
    
68. # according to the man page these callbacks must return an action type,
    
69. # however they also seem to work without
    
70. 
    
71. def drop_enter(event):
    
72.     event.widget.focus_force()
    
73.     print('Entering widget: %s' % event.widget)
    
74.     #print_event_info(event)
    
75.     return event.action
    
76. 
    
77. def drop_position(event):
    
78.     print('Position: x %d, y %d' %(event.x_root, event.y_root))
    
79.     #print_event_info(event)
    
80.     return event.action
    
81. 
    
82. def drop_leave(event):
    
83.     print('Leaving %s' % event.widget)
    
84.     #print_event_info(event)
    
85.     return event.action
    
86. 
    
87. def drop(event):
    
88.     if event.data:
    
89.         print('Dropped data:\n', event.data)
    
90.         #print_event_info(event)
    
91.         if event.widget == listbox:
    
92.             # event.data is a list of filenames as one string;
    
93.             # if one of these filenames contains whitespace characters
    
94.             # it is rather difficult to reliably tell where one filename
    
95.             # ends and the next begins; the best bet appears to be
    
96.             # to count on tkdnd's and tkinter's internal magic to handle
    
97.             # such cases correctly; the following seems to work well
    
98.             # at least with Windows and Gtk/X11
    
99.             files = listbox.tk.splitlist(event.data)
    
100.             for f in files:
     
101.                 if os.path.exists(f):
     
102.                     print('Dropped file: "%s"' % f)
     
103.                     listbox.insert('end', f)
     
104.                 else:
     
105.                     print('Not dropping file "%s": file does not exist.' % f)
     
106.         elif event.widget == text:
     
107.             # calculate the mouse pointer's text index
     
108.             bd = text['bd'] + text['highlightthickness']
     
109.             x = event.x_root - text.winfo_rootx() - bd
     
110.             y = event.y_root - text.winfo_rooty() - bd
     
111.             index = text.index('@%d,%d' % (x,y))
     
112.             text.insert(index, event.data)
     
113.         else:
     
114.             print('Error: reported event.widget not known')
     
115.     return event.action
     
116. 
     
117. # now make the Listbox and Text drop targets
     
118. listbox.drop_target_register(DND_FILES, DND_TEXT)
     
119. text.drop_target_register(DND_TEXT)
     
120. 
     
121. for widget in (listbox, text):
     
122.     widget.dnd_bind('<<DropEnter>>', drop_enter)
     
123.     widget.dnd_bind('<<DropPosition>>', drop_position)
     
124.     widget.dnd_bind('<<DropLeave>>', drop_leave)
     
125.     widget.dnd_bind('<<Drop>>', drop)
     
126.     #widget.dnd_bind('<<Drop:DND_Files>>', drop)
     
127.     #widget.dnd_bind('<<Drop:DND_Text>>', drop)
     
128. 
     
129. # define drag callbacks
     
130. 
     
131. def drag_init_listbox(event):
     
132.     print_event_info(event)
     
133.     # use a tuple as file list, this should hopefully be handled gracefully
     
134.     # by tkdnd and the drop targets like file managers or text editors
     
135.     data = ()
     
136.     if listbox.curselection():
     
137.         data = tuple([listbox.get(i) for i in listbox.curselection()])
     
138.         print('Dragging :', data)
     
139.     # tuples can also be used to specify possible alternatives for
     
140.     # action type and DnD type:
     
141.     return ((ASK, COPY), (DND_FILES, DND_TEXT), data)
     
142. 
     
143. def drag_init_text(event):
     
144.     print_event_info(event)
     
145.     # use a string if there is only a single text string to be dragged
     
146.     data = ''
     
147.     sel = text.tag_nextrange(SEL, '1.0')
     
148.     if sel:
     
149.         data = text.get(*sel)
     
150.         print('Dragging :\n', data)
     
151.     # if there is only one possible alternative for action and DnD type
     
152.     # we can also use strings here
     
153.     return (COPY, DND_TEXT, data)
     
154. 
     
155. def drag_end(event):
     
156.     #print_event_info(event)
     
157.     # this callback is not really necessary if it doesn't do anything useful
     
158.     print('Drag ended for widget:', event.widget)
     
159. 
     
160. # finally make the widgets a drag source
     
161. 
     
162. listbox.drag_source_register(1, DND_TEXT, DND_FILES)
     
163. text.drag_source_register(3, DND_TEXT)
     
164. 
     
165. listbox.dnd_bind('<<DragInitCmd>>', drag_init_listbox)
     
166. listbox.dnd_bind('<<DragEndCmd>>', drag_end)
     
167. text.dnd_bind('<<DragInitCmd>>', drag_init_text)
     
168. # skip the useless drag_end() binding for the text widget
     
169. 
     
170. root.update_idletasks()
     
171. root.deiconify()
     
172. root.mainloop()
     
173. 
     
174. 
     

复制代码

liangychao

多谢回复，我没说说清楚，我实际也是用的TkinterDND2，基本的拖拽功能也实现了，但是，我先获取我拖拽的目标路径，请问要如何做到.比如下图中高亮的文件，我可以把它拖拽到桌面上，但我要怎样在程序中得到我拖拽的目标文件夹是桌面呢？感谢
D:\Users\liangyc3\Desktop\新建文件夹 (4)\截图.jpg

liangychao

D:\Users\liangyc3\Desktop\新建文件夹 (4)\截图.jpg

liangychao

实在不好意思，我还不不会发送图片

D:\Users\liangyc3\Desktop\新建文件夹