如何在graphics.py中设置超大文本？突破36号字号限制方法咨询

Great question! I’ve hit this exact issue with graphics.py before—its built-in Text widget has a hardcoded upper limit of size 36, but there are solid workarounds to get much larger text. Let’s walk through your options step by step:

1. Bypass the limit by accessing the underlying Tkinter widget #

graphics.py is just a wrapper around Tkinter, and its Text object uses a Tkinter Label under the hood. You can directly grab this raw widget and override the font size, no need to modify the graphics.py source code. Here’s how:

from graphics import *

# Create your window
win = GraphWin("Huge Text Demo", 800, 600)

# Initialize a regular Text object (size doesn't matter here—we'll overwrite it)
big_text = Text(Point(400, 300), "THIS IS ENORMOUS!")
big_text.draw(win)

# Get the underlying Tkinter label widget using the internal `_item` attribute
tk_label = big_text._item
# Set your desired font size (72 is just an example—use any number you want)
tk_label.config(font=('Helvetica', 72, 'bold'))

# Wait for user input before closing
win.getMouse()
win.close()

This method is quick and keeps all the other Text functionality (like moving or changing the text content dynamically) intact.

2. Generate text as an image (using Pillow) #

If you’d rather avoid accessing internal attributes of graphics.py, you can create a text image with the Pillow library and display it in your window. This is also great if you want fancy text styles (gradients, shadows, etc.) that graphics.py doesn’t support natively:

from graphics import *
from PIL import Image, ImageDraw, ImageFont

# Configure your text and font
text_content = "MASSIVE STATIC TEXT"
font_size = 96
font = ImageFont.truetype("arial.ttf", font_size)  # Use a system font path if needed

# Calculate text dimensions to size the image
text_width, text_height = font.getsize(text_content)
# Create a white background image with padding
img = Image.new("RGB", (text_width + 20, text_height + 20), "white")
draw = ImageDraw.Draw(img)
# Draw the text onto the image
draw.text((10, 10), text_content, font=font, fill="darkblue")

# Save the image temporarily (or use ImageTk for in-memory display)
img.save("big_text.png")

# Display the image in graphics.py
win = GraphWin("Image Text Demo", text_width + 40, text_height + 40)
text_image = Image(Point((text_width + 20)/2, (text_height + 20)/2), "big_text.png")
text_image.draw(win)

win.getMouse()
win.close()

Note: You’ll need to install Pillow first with pip install pillow if you haven’t already.

3. Build a reusable BigText class #

If you need large text frequently, wrap the Tkinter workaround into a custom class that behaves exactly like the built-in Text but supports any font size:

from graphics import *

class BigText(Text):
    def __init__(self, anchor_point, text_str, font_size=48, font_family="Helvetica", style="normal"):
        super().__init__(anchor_point, text_str)
        self.font_size = font_size
        self.font_family = font_family
        self.style = style

    def draw(self, win):
        # Draw the text normally first, then override the font
        super().draw(win)
        tk_label = self._item
        # Map style strings to Tkinter font styles
        style_arg = ""
        if self.style == "bold":
            style_arg = "bold"
        elif self.style == "italic":
            style_arg = "italic"
        tk_label.config(font=(self.font_family, self.font_size, style_arg))

# Example usage
win = GraphWin("Custom Big Text", 800, 600)
my_text = BigText(Point(400, 300), "CUSTOM HUGE TEXT!", font_size=80, style="bold")
my_text.draw(win)

# You can still modify the text content later, just like a regular Text object
my_text.setText("UPDATED ENORMOUS TEXT!")

win.getMouse()
win.close()

This class inherits all the methods of Text, so you can move it, change its color, or update the text just like you would with a regular Text widget.

内容的提问来源于stack exchange，提问作者Ryan Smith