55 lines
1.8 KiB
Python
55 lines
1.8 KiB
Python
# ui/context_menu.py
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# -*- coding: utf-8 -*-
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import tkinter as tk
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import customtkinter as ctk
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class TextWidgetContextMenu:
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"""
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为 customtkinter.TextBox 或 tkinter.Text 提供右键复制/剪切/粘贴/全选的功能。
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"""
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def __init__(self, widget):
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self.widget = widget
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self.menu = tk.Menu(widget, tearoff=0)
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self.menu.add_command(label="复制", command=self.copy)
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self.menu.add_command(label="粘贴", command=self.paste)
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self.menu.add_command(label="剪切", command=self.cut)
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self.menu.add_separator()
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self.menu.add_command(label="全选", command=self.select_all)
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# 绑定右键事件
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self.widget.bind("<Button-3>", self.show_menu)
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def show_menu(self, event):
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if isinstance(self.widget, ctk.CTkTextbox):
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try:
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self.menu.tk_popup(event.x_root, event.y_root)
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finally:
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self.menu.grab_release()
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def copy(self):
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try:
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text = self.widget.get("sel.first", "sel.last")
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self.widget.clipboard_clear()
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self.widget.clipboard_append(text)
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except tk.TclError:
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pass # 没有选中文本时忽略错误
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def paste(self):
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try:
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text = self.widget.clipboard_get()
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self.widget.insert("insert", text)
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except tk.TclError:
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pass # 剪贴板为空时忽略错误
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def cut(self):
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try:
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text = self.widget.get("sel.first", "sel.last")
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self.widget.delete("sel.first", "sel.last")
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self.widget.clipboard_clear()
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self.widget.clipboard_append(text)
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except tk.TclError:
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pass # 没有选中文本时忽略错误
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def select_all(self):
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self.widget.tag_add("sel", "1.0", "end")
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