Trait tiff_encoder::Datablock[−][src]

pub trait Datablock {
    fn size(&self) -> u32;
    fn write_to(self, file: &mut EndianFile) -> Result<()>;
}

A block of data in the file pointed to by a field value, but that isn't part of the field itself (such as image strips).

It is also possible to store any block of data in a ByteBlock, but that would require to know the Endianness of the file beforehand, so the bytes are written in the correct order.

Using a Datablock, on the other hand, allows to make use of the functionality of an EndianFile, so the data can be written without worrying about the endianness.

Required Methods

`fn size(&self) -> u32`

The number of bytes occupied by this Datablock.

Panics

The number of written bytes to the EndianFile in write_to(self, &mut EndianFile) must be the same value returned by this function.

Failing to meet that specification will panic.

`fn write_to(self, file: &mut EndianFile) -> Result<()>`

Writes this Datablock to an EndianFile. The number of bytes written must be exactly same number as returned by size(&self).

Panics

Failing to write the exact same number of bytes as indicated in size(&self) will panic.

Implementors

impl Datablock for ByteBlock
[src]