fontmesh 0.5.0

Pure Rust library for converting TrueType and OpenType (including CFF/PostScript) font glyphs to 2D/3D triangle meshes
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51

//! Error types for fontmesh

use std::fmt;

/// Errors that can occur during font mesh generation
#[derive(Debug, Clone, PartialEq)]
pub enum FontMeshError {
    /// Failed to parse the font file
    ParseError(String),

    /// Glyph not found for the given character
    GlyphNotFound(char),

    /// Failed to extract glyph outline
    OutlineExtractionFailed(String),

    /// Failed to linearize curves
    LinearizationFailed(String),

    /// Failed to triangulate the outline
    TriangulationFailed(String),

    /// Failed to extrude the mesh
    ExtrusionFailed(String),

    /// Invalid quality parameter
    InvalidQuality(u8),

    /// The glyph has no outline (e.g., space character)
    NoOutline,
}

impl fmt::Display for FontMeshError {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match self {
            Self::ParseError(msg) => write!(f, "Font parse error: {}", msg),
            Self::GlyphNotFound(c) => write!(f, "Glyph not found for character: '{}'", c),
            Self::OutlineExtractionFailed(msg) => write!(f, "Outline extraction failed: {}", msg),
            Self::LinearizationFailed(msg) => write!(f, "Linearization failed: {}", msg),
            Self::TriangulationFailed(msg) => write!(f, "Triangulation failed: {}", msg),
            Self::ExtrusionFailed(msg) => write!(f, "Extrusion failed: {}", msg),
            Self::InvalidQuality(q) => write!(f, "Invalid quality parameter: {}", q),
            Self::NoOutline => write!(f, "Glyph has no outline"),
        }
    }
}

impl std::error::Error for FontMeshError {}

/// Result type for fontmesh operations
pub type Result<T> = std::result::Result<T, FontMeshError>;