qr-gen

main.py

import os

from flet import *
from flet import icons, colors
import pyqrcode


def main(page: Page):
    page.title = "QRcode Generator"
    page.theme_mode = "light"
    page.window_always_on_top = True
    page.splash = ProgressBar(visible=False)
    # page.vertical_alignment = "center"
    page.horizontal_alignment = "center"
    page.count = len(os.listdir("assets/generated-codes"))


    def change_theme(e):
        """
        Changes the app's theme_mode, from dark to light or light to dark. A splash(progress bar) is also shown.

        :param e: The event that triggered the function
        :type e: ControlEvent
        """
        page.splash.visible = True
        page.update()
        page.theme_mode = "light" if page.theme_mode == "dark" else "dark"  # changes the page's theme_mode
        page.splash.visible = False
        theme_icon_button.selected = not theme_icon_button.selected  # changes the icon
        time.sleep(1)  # shows the progress bar for a second indicating that work is being done..
        page.update()

    def generate_qr(e):
        # global qr_count
        try:
            if qr_text.current.value.strip():
                page.splash.visible = True
                page.update()
                qr_code = pyqrcode.create(qr_text.current.value)
                qr_code.svg(f"assets/generated-codes/output_{page.count}.svg", scale=10, debug=True)
                # qr_image.current.src = os.listdir("assets/generated-codes")[-1]
                qr_image.current.src = f"generated-codes/output_{page.count}.svg"
                qr_image.current.update()
                page.splash.visible = False
                page.update()
                print(qr_image.current.src)

                # os.remove(f"assets/generated-codes/output_{page.count}.svg")
                page.count += 1
                # page.count = len(os.listdir("assets/generated-codes")) + 1
            else:
                page.show_snack_bar(
                    SnackBar(
                        Text("No Text was entered!"),
                        open=True
                    )
                )
        except Exception as e:
            page.show_snack_bar(
                SnackBar(
                    Text(f"An Error occured: {e}"),
                    open=True
                )
            )

    def save(e):
        if qr_text.current.value.strip():
            pass
        else:
            page.show_snack_bar(
                SnackBar(
                    Text("No Text was entered!"),
                    open=True
                )
            )

    theme_icon_button = IconButton(
        icons.DARK_MODE,
        selected=False,
        selected_icon=icons.LIGHT_MODE,
        icon_size=35,
        tooltip="change theme",
        on_click=change_theme,
        style=ButtonStyle(color={"": colors.BLACK, "selected": colors.WHITE}, ),
    )

    page.appbar = AppBar(
        title=Text(
            "QRcode Generator",
            color="white"
        ),
        center_title=True,
        bgcolor="blue",
        actions=[theme_icon_button],
    )

    qr_image = Ref[Image]()
    qr_text = Ref[TextField]()
    # qr_count = 0

    page.add(
        Column(
            [
                TextField(
                    ref=qr_text,
                    max_length=250,
                    hint_text="enter text here..",
                    label="Text Field",
                    width=500,
                    height=90,
                    suffix=FilledButton("Generate", on_click=generate_qr),
                    on_submit=generate_qr,
                ),
                Divider(),
                Container(Image(
                    ref=qr_image,
                    src="i",
                    # scale=1,
                    width=370,
                    height=370,
                    # gapless_playback=True,
                ), alignment=Alignment(0, 0), ),

            ]
        )
    )


flet.app(target=main, assets_dir="assets")