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Computer Graphics in Python and Pycairo

Font Style

Explore how to apply different font styles such as italic, oblique, and bold in Pycairo. Understand how font slant and weight parameters affect text appearance and how to combine styles for rich text effects in your graphics projects.

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In addition to the normal font style, the text is displayed in italic or bold styles. These styles are applied via optional parameters when we create the font.

FontSlant

This is how we can create italic fonts:

Python 3.8
import cairo
# Set up surface
surface = cairo.ImageSurface(cairo.FORMAT_RGB24, 600, 400)
ctx = cairo.Context(surface)
ctx.set_source_rgb(0.8, 0.8, 0.8)
ctx.paint()
# Select font
ctx.set_font_size(50)
ctx.set_source_rgb(0, 0, 0)
ctx.select_font_face('Times', cairo.FontSlant.NORMAL)
ctx.move_to(100, 100)
ctx.show_text("Normal")
ctx.select_font_face('Times', cairo.FontSlant.ITALIC)
ctx.move_to(100, 200)
ctx.show_text("Italic")
ctx.select_font_face('Times', cairo.FontSlant.OBLIQUE)
ctx.move_to(100, 300)
ctx.show_text("Oblique")

The first example creates normal ...