Kivy Textinput

Question

如何配置Kivy文本输入框，使其将粘贴到其中的文本包装起来？例如，假设我有一个长度为1,000个字母的字符串，并将其粘贴到已启用multiline的文本输入框中。粘贴的文本将显示为超出窗口宽度的一行，而不是包装到下一行。非常意外的行为。

粘贴到TextInput中的带有id seq_input_box的字符串

UUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUUUUCUUAUUU

.kv文件：

MinRoot:

<MinRoot>:
    MyForm

<MyForm>:
    orientation: "vertical"
    seq_input: seq_input_box
    BoxLayout:
        height: "40dp"
        size_hint_y: None
        Button:
            text: "Go!"
            on_press: root.calc_seq()
    TextInput:
        id: seq_input_box
        focus: True

结果：

​

​

谢谢

Answer 1

@zeeMonkeez，谢谢你调查这个问题的根源。下面是我最后使用的解决方案：

.py文件：

class MyTextBox(TextInput):

    def insert_text(self, substring, from_undo=False):

        line_length = 50

        # Remove all whitespace in string.
        seq = ''.join(substring.split())

        # For every line_length characters, insert a newline character.
        if len(seq) > line_length:

            # Splits seq by every Nth character and creates a list.
            # Example: [abc,def,ghi]
            # Then join the list items together using a newline character
            # as the separator.
            seq = '\n'.join([seq[i:i+line_length] for i in range(0, len(seq), line_length)])

        return super(MyTextBox, self).insert_text(seq, from_undo=from_undo)

关于insert_text的更多信息是可用的这里。