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justpdf_render/
error.rs

1use std::fmt;
2
3pub type Result<T> = std::result::Result<T, RenderError>;
4
5#[derive(Debug)]
6pub enum RenderError {
7    /// Error from justpdf-core.
8    Core(justpdf_core::JustPdfError),
9    /// Invalid page dimensions or rendering parameters.
10    InvalidDimensions { detail: String },
11    /// Image decoding/rendering error.
12    Image { detail: String },
13    /// PNG encoding error.
14    Encode { detail: String },
15    /// I/O error.
16    Io(std::io::Error),
17}
18
19impl fmt::Display for RenderError {
20    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
21        match self {
22            Self::Core(e) => write!(f, "PDF error: {e}"),
23            Self::InvalidDimensions { detail } => write!(f, "invalid dimensions: {detail}"),
24            Self::Image { detail } => write!(f, "image error: {detail}"),
25            Self::Encode { detail } => write!(f, "encode error: {detail}"),
26            Self::Io(e) => write!(f, "I/O error: {e}"),
27        }
28    }
29}
30
31impl std::error::Error for RenderError {}
32
33impl From<justpdf_core::JustPdfError> for RenderError {
34    fn from(e: justpdf_core::JustPdfError) -> Self {
35        Self::Core(e)
36    }
37}
38
39impl From<std::io::Error> for RenderError {
40    fn from(e: std::io::Error) -> Self {
41        Self::Io(e)
42    }
43}