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CFAST User Guide: more work on image fonts for Windows #2499

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rmcdermo merged 1 commit into from
Sep 17, 2026
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CFAST User Guide: more work on image fonts for Windows #2499

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24 changes: 24 additions & 0 deletions Manuals/CFAST_Users_Guide/generate_cedit_figures.py
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,10 @@
if sys.platform == "win32":
windows_fonts = Path(os.environ.get("WINDIR", r"C:\Windows")) / "Fonts"
os.environ.setdefault("QT_QPA_FONTDIR", str(windows_fonts))
# Keep offscreen captures independent of the desktop's display scaling.
os.environ.setdefault("QT_FONT_DPI", "96")
os.environ.setdefault("QT_SCALE_FACTOR", "1")
os.environ.setdefault("QT_SCREEN_SCALE_FACTORS", "1")


@dataclass(frozen=True)
Expand All @@ -43,6 +47,24 @@ class TabFigure:
_QT_MESSAGE_HANDLER = None


def configure_windows_font(app, font_dir: Path) -> None:
from PySide6.QtGui import QFont, QFontDatabase

# Register an outline font explicitly; offscreen's default font may be bitmap.
for regular, bold in (("segoeui.ttf", "segoeuib.ttf"), ("arial.ttf", "arialbd.ttf")):
font_id = QFontDatabase.addApplicationFont(str(font_dir / regular))
families = QFontDatabase.applicationFontFamilies(font_id)
if not families:
continue
if (font_dir / bold).is_file():
QFontDatabase.addApplicationFont(str(font_dir / bold))
font = QFont(families[0], 9)
font.setStyleStrategy(QFont.StyleStrategy.PreferAntialias | QFont.StyleStrategy.PreferOutline)
app.setFont(font)
return
raise RuntimeError(f"Could not load Segoe UI or Arial TrueType fonts from {font_dir}")


def parse_args() -> argparse.Namespace:
parser = argparse.ArgumentParser(
description=(
Expand Down Expand Up @@ -347,6 +369,8 @@ def main() -> int:
patch_message_boxes(QMessageBox)

app = QApplication.instance() or QApplication([])
if sys.platform == "win32":
configure_windows_font(app, windows_fonts)
window = CeditMainWindow()
window.resize(args.width, args.height)
window.load_cfast_input(input_path)
Expand Down
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