Struct tiff_encoder::TiffFile

pub struct TiffFile { /* private fields */ }

Representation of a Tagged Image File.

This is the central structure of the crate. It holds all the other structures of the TIFF file and is responsible for writing them to a fs::File.

Implementations

impl TiffFile

pub fn new(ifds: IfdChain) -> TiffFile

Creates a new TiffFile from an IfdChain.

By default, a TiffFile is little-endian and has 42 as the magic number. If you want to change the endianness, consider chaining this function wih with_endianness.

Examples

Creating the simplest valid TiffFile: a single Ifd with only one entry.

use tiff_encoder::*;
use tiff_encoder::tiff_type::*;
let tiff_file = TiffFile::new(
    Ifd::new()
        .with_entry(0x0000, BYTE::single(0))
        .single()
);

pub fn with_endianness(self, endian: Endianness) -> Self

Returns the same TiffFile, but with the specified Endianness.

Examples

As this method returns Self, it can be chained when building a TiffFile.

use tiff_encoder::*;
use tiff_encoder::tiff_type::*;
 
let tiff_file = TiffFile::new(
    Ifd::new()
        .with_entry(0x0000, BYTE::single(0))
        .single()
).with_endianness(Endianness::MM);

pub fn write_to(self, file_path: &str) -> Result<File>

Writes the TiffFile content to a new file created at the given path.

Doing so consumes the TiffFile. Returns the new fs::File wrapped in an io::Result.

Examples

Note that, in this example, file is a fs::File, not a TiffFile.

use tiff_encoder::*;
use tiff_encoder::tiff_type::*;
 
let file = TiffFile::new(
    Ifd::new()
        .with_entry(0x0000, BYTE::single(0))
        .single()
).write_to("file.tif").unwrap();

Errors

This method returns the same errors as Write::write_all.

Panics

This function will panic if the file trying to be written would exceed the maximum size of a TIFF file (2**32 bytes, or 4 GiB).