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C is not clearing the data in the TextInput

Paul Ng'ang'a answered on July 16, 2023 Popularity 1/10 Helpfulness 1/10

answer C is not clearing the data in the TextInput

C is not clearing the data in the TextInput

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from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.button import Button
from kivy.uix.textinput import TextInput


class CalculatorApp(App):
    def build(self):
        self.icon = "calculator.png"
        self.operators = ["/", "*", "+", "-"]
        self.last_was_operator = None
        self.last_button = None
        self.solution = TextInput(background_color="black", foreground_color="white", readonly=True)
        main_layout = BoxLayout(orientation="vertical")
        main_layout.add_widget(self.solution)

        buttons = [
            ["7", "8", "9", "/"],
            ["4", "5", "6", "*"],
            ["1", "2", "3", "+"],
            [".", "0", "C", "-"],
        ]

        for row in buttons:
            h_layout = BoxLayout()
            for label in row:
                button = Button(
                    text=label, font_size=30, background_color="grey",
                    pos_hint={"center_x": 0.5, "center_y": 0.5}
                )
                if label == "C":
                    button.bind(on_press=self.clear_text)
                else:
                    button.bind(on_press=self.button_press)
                h_layout.add_widget(button)
            main_layout.add_widget(h_layout)

        equal_button = Button(
            text="=", font_size=30, background_color="grey",
            pos_hint={"center_x": 0.5, "center_y": 0.5}
        )
        equal_button.bind(on_press=self.calculate)
        main_layout.add_widget(equal_button)

        return main_layout

    def button_press(self, instance):
        current_text = self.solution.text
        button_text = instance.text

        if button_text in self.operators:
            if self.last_was_operator:
                return
            elif current_text == "":
                return

            self.last_was_operator = True
            self.solution.text += button_text
        else:
            self.last_was_operator = False
            self.solution.text += button_text

    def calculate(self, instance):
        current_text = self.solution.text
        if current_text:
            try:
                self.solution.text = str(eval(current_text))
            except Exception:
                self.solution.text = "Error"

    def clear_text(self, instance):
        self.solution.text = ""


if __name__ == "__main__":
    app = CalculatorApp()
    app.run()

Popularity 1/10 Helpfulness 1/10 Language python

Source: chat.openai.com

Tags: c python textinput

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Contributed on Jul 16 2023

Paul Ng'ang'a

0 Answers Avg Quality 2/10

C is not clearing the data in the TextInput

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