Crate embedded_graphics_profont 

embedded-graphics-profont

Bitmap font rendering for embedded-graphics with text anchoring and tracking support.

Quick Start

use embedded_graphics::{
    pixelcolor::Rgb666,
    prelude::*,
};
use embedded_graphics_profont::{Text, Anchor, WithAnchor};

mod fonts;
use fonts::FONT;

// Render text
let text = Text::new("Hello", Point::new(0, 0), &FONT, Rgb666::BLACK);
display.draw(&text).ok();

// With anchoring and spacing
let text = Text::new("Centered", Point::new(160, 120), &FONT, Rgb666::BLACK)
    .with_anchor(Anchor::MiddleCenter)
    .with_tracking(2);
display.draw(&text).ok();

Features

• no_std compatible
• Bitmap fonts (monospace & proportional)
• 9-point text anchoring (TopLeft, TopCenter, TopRight, MiddleLeft, MiddleCenter, MiddleRight, BottomLeft, BottomCenter, BottomRight)
• Character tracking (letter spacing)
• Transparent rendering (only font pixels drawn)
• Text measurement via font.measure_str()

Font Generation

See TOOLS.md for complete font generation workflow.

Quick workflow:

1. Create/edit font in GLCD Font Creator
2. Export as .c (Format: MikroC, Method: “Export for tft”)
3. Convert with main.py → generates fonts.rs
4. Copy to project

API Overview

Méthod	Description
Font::new(lookup_table, data, ascii_begin, ascii_end, max_height, proportional)	Create font
font.measure_str(text, tracking)	Get text width in pixels
text.with_anchor(anchor)	Set anchor point
text.with_tracking(pixels)	Set letter spacing
Character::new(ch, pos, font, color)	Render single char

Modules

• font - Font definition, Text, Character, Anchor
• renderer - Low-level draw_char/draw_str functions

See cargo doc --open for full API reference.

embedded-graphics-profont

A lightweight bitmap font rendering library for embedded-graphics.

Quick Start

use embedded_graphics::geometry::Point;
use embedded_graphics_profont::{Font, Text, Anchor};

// Create a font from pre-compiled bitmap data
let font = Font::new(&LOOKUP_TABLE, &FONT_DATA, 32, 126, 8, true);

// Render text with center anchor
let text = Text::new("Hello", Point::new(64, 32), &font, color)
    .with_anchor(Anchor::MiddleCenter);
target.draw(&text)?;

Re-exports

pub use font::Anchor;

pub use font::Character;

pub use font::Font;

pub use font::GlyphEntry;

pub use font::Text;

pub use font::WithAnchor;

Modules

font

renderer

Low-level text rendering algorithms.