miércoles, 19 de agosto de 2015

Kivy - variable Label

Lately I have been working with Kivy to produce some simple Apps. One of the things I needed was a Label which text could be changed by double clicking on it. I came up with this derived class that merges Label, TextInput and Popup.

from import App

from kivy.uix.label import Label
from kivy.uix.popup import Popup
from kivy.uix.textinput import TextInput

class variableLabel (Label):

    def __init__(self, text):
        super(variableLabel, self).__init__()
        self.text  = text

    def on_touch_down(self, touch):
        if touch.is_double_tap and self.collide_point(*touch.pos):
          _input = TextInput(text=self.text, multiline=False, auto_dismiss=False)
          popup = Popup(title='Editing Label text', content=_input)
          _input.bind (text=self.on_text)
          _input.bind (on_text_validate=popup.dismiss)

    def on_text (self, instance, value):
        self.text = value

class MyApp(App):

    def build(self):
        return variableLabel("New")

if __name__ == '__main__':

Do you have suggestions for improvement?

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