pythontruetypearcade

Python Arcade 3.3.0 not using custom font loaded from TTF file

I'm trying to load a custom font from a .ttf file into my Python program using the Arcade library, like so:

arcade.load_font("Assets/Fonts/CopperplateGothic.ttf")

self.actionsLabel = arcade.Text("Actions", font_name="CopperplateGothicStd-32BC", color=highlightColour, font_size=32, x=0, y=buttonY+buttonHeight+20, batch=self.headingTexts)

print(self.actionsLabel.font_name)

The call to arcade.load_font doesn't produce an exception, so the font appears to be loaded correctly. However, the font isn't actually used when displaying the self.actionsLabel.

I've tried these values for font_name in the arcade.Text constructor:

But none of these work; the text simply appears in a fallback font (Segoe UI). However, using the name "MS Comic Sans" chooses that font, as expected, so the problem must be somewhere else.

I also tried converting the font file to OpenType first, to no avail.

How can I use a font that I've loaded explicitly in the code, rather than one pre-installed in the system?

Solution

  • I tested on font file Copperplate-Gothic-Std-32-BC.ttf downloaded from:
    Copperplate Gothic Std Font Family Download | Free Font.Download

    Arcade uses pyglet and digging in source code of Arcade and pyglet I found class freetype which loads ttf and it has function to display font name.

    import pyglet.font.freetype

filename = 'Copperplate-Gothic-Std-32-BC.ttf'
font = pyglet.font.freetype.FreeTypeFace.from_file(filename)
print(font.name)

    and it displays me name Copperplate Gothic Std

    This name works for me in pyglet with pyglet.font.add_file
    which is used in arcade.load_font

    import pyglet

filename = 'Copperplate-Gothic-Std-32-BC.ttf'
pyglet.font.add_file(filename )

font_name = 'Copperplate Gothic Std'
font = pyglet.font.load(font_name)
print(font.name)

    Minimal working code to test this name in Arcade

    import arcade

WIDTH = 400
HEIGHT = 300
TITLE = "Example"

filename = 'Copperplate-Gothic-Std-32-BC.ttf'
font_name = "Copperplate Gothic Std"

class MyGame(arcade.Window):
    def __init__(self):
        super().__init__(WIDTH, HEIGHT, TITLE)

        arcade.load_font(filename)
        self.actionsLabel = arcade.Text("Actions", font_name=font_name, font_size=32, x=WIDTH//2, y=HEIGHT//2, anchor_x="center", anchor_y="center")
        print(self.actionsLabel.font_name)

    def on_draw(self):
        self.clear()
        self.actionsLabel.draw()

if __name__ == "__main__":
    MyGame()
    arcade.run()

    Result:

    enter image description here

    EDIT:

    I tested only on Linux but Windows may use different classes to load fonts:
    Win32DirectWriteFont or GDIPlusFont (see source code in pyglet/font),
    and it may work in different way.