fallback_settings property

FontSettings.fallback_settings property

Settings related to font fallback mechanism.

def fallback_settings(self) -> aspose.words.fonts.FontFallbackSettings:


Shows how to distribute fallback fonts across Unicode character code ranges.

doc = aw.Document()
font_settings = aw.fonts.FontSettings()
doc.font_settings = font_settings
font_fallback_settings = font_settings.fallback_settings
# Configure our font settings to source fonts only from the "MyFonts" folder.
folder_font_source = aw.fonts.FolderFontSource(FONTS_DIR, False)
# Calling the "build_automatic" method will generate a fallback scheme that
# distributes accessible fonts across as many Unicode character codes as possible.
# In our case, it only has access to the handful of fonts inside the "MyFonts" folder.
font_fallback_settings.save(ARTIFACTS_DIR + 'FontSettings.fallback_settings_custom.build_automatic.xml')
# We can also load a custom substitution scheme from a file like this.
# This scheme applies the "AllegroOpen" font across the "0000-00ff" Unicode blocks, the "AllegroOpen" font across "0100-024f",
# and the "M+ 2m" font in all other ranges that other fonts in the scheme do not cover.
font_fallback_settings.load(MY_DIR + 'Custom font fallback settings.xml')
# Create a document builder and set its font to one that does not exist in any of our sources.
# Our font settings will invoke the fallback scheme for characters that we type using the unavailable font.
builder = aw.DocumentBuilder(doc)
builder.font.name = 'Missing Font'
# Use the builder to print every Unicode character from 0x0021 to 0x052F,
# with descriptive lines dividing Unicode blocks we defined in our custom font fallback scheme.
for i in range(33, 1328):
    if i == 33:
        builder.writeln('\n\n0x0021 - 0x00FF: \nBasic Latin/Latin-1 Supplement Unicode blocks in "AllegroOpen" font:')
    elif i == 256:
        builder.writeln('\n\n0x0100 - 0x024F: \nLatin Extended A/B blocks, mostly in "AllegroOpen" font:')
    elif i == 592:
        builder.writeln('\n\n0x0250 - 0x052F: \nIPA/Greek/Cyrillic blocks in "M+ 2m" font:')
doc.save(ARTIFACTS_DIR + 'FontSettings.fallback_settings_custom.pdf')

See Also