90 lines
3.1 KiB
Python
90 lines
3.1 KiB
Python
from io import BytesIO
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from PIL import Image, ImageDraw, ImageFont
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import PySimpleGUI as sg
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"""
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Demo Rounded Rectangle Buttons created using PIL
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A BIG thank you to @jason990420 for his talented work creating this demo.
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Demonstrates how you can draw buttons rather than using the built-in buttons
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with the help of the PIL module.
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One advantage is that the buttons will match your window's theme.
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You'll find more PySimpleGUI programs featured in
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Mike Driscoll's PIL book - "Pillow: Image Processing with Python"
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Copyright 2021 PySimpleGUI, @jason990420
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"""
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def im_to_data(im):
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"""
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Convert a PIL.Image.Image to a bytes image
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:param im: Image
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:type: PIL.Image.Image object
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:return image in bytes
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:type: bytes
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"""
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with BytesIO() as buffer:
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im.save(buffer, format='PNG')
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data = buffer.getvalue()
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return data
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def rounded_rectangle(text, font=('arial.ttf', 14), button_color=None,):
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"""
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Generate rounded image with text aligned center.
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:param text: text to show on image, '\n' to split lines.
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:type text: str
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:param font: font for text
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:type font: Tuple
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:return image in bytes
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:type: bytes
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"""
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pad, radius, spacing = 5, 10, 5
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ttf_font = ImageFont.truetype(font=font[0], size=font[1])
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if not text:
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text = ' '
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paragraph = text.split('\n')
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w = max(map(lambda x: ttf_font.getsize(x)[0], paragraph)) + 2 * pad
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h = sum(map(lambda x: ttf_font.getsize(x)[1], paragraph)) + 2 * pad + len(paragraph) * spacing
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c0, c1 = button_color if button_color else sg.theme_button_color()
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c0 = c0 if c0 != sg.COLOR_SYSTEM_DEFAULT else 'white'
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c1 = c1 if c1 != sg.COLOR_SYSTEM_DEFAULT else 'white'
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im = Image.new("RGBA", (w, h), (255, 255, 255, 0))
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draw = ImageDraw.Draw(im)
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draw.rounded_rectangle((0, 0, w-1, h-1), fill=c1, width=0, radius=radius)
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draw.multiline_text((pad, pad), text, align='center', font=ttf_font, fill=c0, spacing=spacing)
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return im_to_data(im)
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# sg.theme("dark red")
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sg.theme("dark green 7")
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# sg.set_options(font=("Arial", 16))
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layout = [[sg.Button('Normal Button')],
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[sg.Button('', image_data=sg.EMOJI_BASE64_HAPPY_THUMBS_UP, border_width=0, button_color=(sg.theme_background_color(), sg.theme_background_color()))],
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[sg.Button(image_data=rounded_rectangle('Button text\nwith 2 lines', font=('arial.ttf', 25)), button_color=(sg.theme_background_color(), sg.theme_background_color()), border_width=0)]]
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layout += [
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[sg.Button(
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image_data=rounded_rectangle(text, font=('cour.ttf', 25)),
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button_color=(sg.theme_button_color()[0], sg.theme_background_color()),
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border_width=0)]
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for text in (
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"My button",
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"Button with\n2 lines",
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"A long long ..................long line",
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"123\n2\n3")
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]
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window = sg.Window('Image and Rounded Button', layout, finalize=True, keep_on_top=True, use_custom_titlebar=True)
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while True:
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event, values = window.read()
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if event in (sg.WINDOW_CLOSED, "Exit"):
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break
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window.close()
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