覆盖 tkinter 'ctrl+v' 以在多个条目之间拆分粘贴，而不是将其全部粘贴到一个条目中

Question

self.mrEntry.event_delete(\'<<Paste>>\', \'<Control-v>\')\nself.mrEntry.event_add(\'<Control-v>\', lambda *_: self.handle_clipboard()) # ERROR occurs\n\ndef handle_clipboard(self):\n    # Split the clipboard text up by every \'\\n\' and distribute them among the entries\n    # In contrast to pasting all the text into one entry\n

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是否可以覆盖Control-v快捷方式，将剪贴板分布在多个条目中，而不是将所有内容粘贴到一个条目中？

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从聚焦的条目开始，对于\\n剪贴板中的每个条目，将其粘贴到后续条目中。

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负责剪贴板处理的函数：（它粘贴文本两次，因为我们有一个要粘贴的全局绑定，以及一个对某些选定条目的显式绑定。）

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def handle_clipboard(self, focused_entry):\n    """Function to destribute the clipboard data into seperate entries"""\n\n    if \'\\n\' not in root.clipboard_get():\n        # If there is only one line in clipboard, paste it all in the focused cell\n        return\n\n    # count number of lines (cells) there is in the clipboard\n    clipboard_cells = (cell for line in root.clipboard_get().split(\'\\n\')[:-1]\n                                for cell in line.split(\'\\t\'))\n    print(clipboard_cells)\n\n    # Find corresponding \'key\' for the \'focused entry\'\n    for key, entry in self.entries.items():\n        if entry == focused_entry:\n            break\n\n    # We start from the focused cell and insert until there are no more entries\n    index = self.n\xc3\xb8gletal.index(key)\n    for entry in (self.entries[entry] for entry in self.n\xc3\xb8gletal[index:]):\n\n        try:\n            n = next(clipboard_cells)\n            entry.delete(0, \'end\')\n            entry.insert(0, n)\n        except StopIteration:\n            # There is not more to paste\n            # but still more entries to paste in\n            pass\n

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Answer 1

从可用性角度来看，这似乎是一个坏主意，但实现非常简单。您不必使用event_deleteor event_add，您只需绑定到<<Paste>>事件即可。

如果您绑定到特殊的 catch-all "all"，则只需执行一个绑定，无论哪个小部件具有焦点，该绑定都将起作用，但如果您愿意，您可以只绑定到条目小部件。

重要的是让您的函数返回字符串"break"，以防止任何其他事件处理程序处理粘贴事件。

这是一个人为的例子：

import tkinter as tk

root = tk.Tk()
text = tk.Text(height=6)
text.pack(side="top", fill="x")

for i in range(10):
    text.insert("end", "this is line #%d\n" % i)

entrys = []
for i in range(10):
    entry = tk.Entry(root)
    entry.pack(side="top", fill="x")
    entrys.append(entry)

def handle_clipboard(event):
    for entry in entrys:
        entry.delete(0, "end")

    lines = root.clipboard_get().split("\n")
    for entry, line in zip(entrys, lines):
        entry.insert(0, line)
    return "break"

root.bind_all("<<Paste>>", handle_clipboard)

root.mainloop()