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# Copyright (c) 2023, Manfred Moitzi
# License: MIT License
from __future__ import annotations
import time
import pathlib
CWD = pathlib.Path("~/Desktop/Outbox").expanduser()
if not CWD.exists():
CWD = pathlib.Path(".")
import ezdxf
import ezdxf.path
from ezdxf.math import Matrix44
from ezdxf.fonts.font_manager import FontManager, FontNotFoundError
from ezdxf.fonts.ttfonts import TTFontRenderer
font_manager = FontManager()
def make_example(doc, font_name: str, y: float, text: str, kerning: bool):
try:
font = font_manager.get_ttf_font(font_name)
font_renderer = TTFontRenderer(font, kerning=kerning)
except FontNotFoundError:
return
style = f"STYLE{y}"
doc.styles.add(style, font=font_name)
msp = doc.modelspace()
cap_height = 100
measurements = font_renderer.font_measurements
x_height = measurements.x_height * font_renderer.get_scaling_factor(cap_height)
s = f"{font_renderer.font_name}: {text}"
text_path = font_renderer.get_text_path(s, cap_height=cap_height)
length = font_renderer.get_text_length(s, cap_height=cap_height)
msp.add_line((0, y), (length, y), dxfattribs={"color": 3})
msp.add_line((0, y + cap_height), (length, y + cap_height), dxfattribs={"color": 3})
msp.add_line((0, y + x_height), (length, y + x_height), dxfattribs={"color": 5})
msp.add_text(
s, height=cap_height, dxfattribs={"color": 6, "layer": "TEXT", "style": style}
).set_placement((0, y))
ezdxf.path.render_hatches(
msp,
[text_path.transform(Matrix44.translate(0, y, 0))],
dxfattribs={"color": 7, "layer": "HATCH"},
)
FONTS = [
"simsun.ttc",
"arial.ttf",
"arialn.ttf",
"ariblk.ttf",
"isocpeur.ttf",
"LiberationSans-Regular.ttf",
"LiberationSerif-Regular.ttf",
"LiberationSansNarrow-Regular.ttf",
"LiberationMono-Regular.ttf",
"OpenSans-Regular.ttf",
"OpenSansCondensed-Light.ttf",
"DejavuSerif.ttf",
"DejavuSerifCondensed.ttf",
"DejavuSans.ttf",
"DejavuSansCondensed.ttf",
]
def latin():
doc = ezdxf.new()
doc.layers.add("TEXT")
doc.layers.add("HATCH").off()
y = 0
for font in FONTS:
print(f"render font: {font}")
make_example(
doc,
font,
y,
text="AXxpEHIäüöÄÜÖß%& VA LW T. TA Ts ... and much more text !!!!!!",
kerning=False,
)
y += 150
doc.saveas(CWD / "latin_glyphs.dxf")
def chinese():
doc = ezdxf.new()
doc.layers.add("TEXT")
doc.layers.add("HATCH").off()
y = 0
for font in FONTS:
print(f"render font: {font}")
make_example(
doc,
font,
y,
text="AXxp 向中国问好 向中国问好 向中国问好 !!!!!!",
kerning=False,
)
y += 150
doc.saveas(CWD / "chinese_glyphs.dxf")
def cache_reloading():
t0 = time.perf_counter()
cache_file = pathlib.Path("font_cache.json")
if cache_file.exists():
with open(cache_file, "rt") as fp:
font_manager.loads(fp.read())
print(f"loaded cache in {time.perf_counter() - t0:.4f} seconds")
else:
print(f"build cache file: {cache_file.name}")
font_manager.build()
print(f"build cache in {time.perf_counter() - t0:.4f} seconds")
s = font_manager.dumps()
print(f"writing cache file: {cache_file.name}")
with open("font_cache.json", "wt") as fp:
fp.write(s)
if __name__ == "__main__":
cache_reloading()
latin()
chinese()
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