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use crate::block::{ColorTable, ImageDescriptor, IndexedImage};
pub struct ImageBuilder {
left_offset: u16,
top_offset: u16,
width: u16,
height: u16,
color_table: Option<ColorTable>,
indicies: Vec<u8>,
}
impl ImageBuilder {
pub fn new(width: u16, height: u16) -> Self {
Self {
left_offset: 0,
top_offset: 0,
width,
height,
color_table: None,
indicies: vec![],
}
}
pub fn offsets(mut self, left_offset: u16, top_offset: u16) -> Self {
self.left_offset = left_offset;
self.top_offset = top_offset;
self
}
pub fn left_offset(mut self, offset: u16) -> Self {
self.left_offset = offset;
self
}
pub fn top_offset(mut self, offset: u16) -> Self {
self.top_offset = offset;
self
}
pub fn color_table(mut self, table: ColorTable) -> Self {
self.color_table = Some(table);
self
}
pub fn indicies(mut self, vec: Vec<u8>) -> Self {
self.indicies = vec;
self
}
pub fn build(self) -> IndexedImage {
let mut imgdesc = ImageDescriptor {
left: self.left_offset,
top: self.top_offset,
width: self.width,
height: self.height,
packed: 0, // Set later
};
if let Some(lct) = &self.color_table {
imgdesc.set_color_table_present(true);
imgdesc.set_color_table_size(lct.packed_len());
}
IndexedImage {
image_descriptor: imgdesc,
local_color_table: self.color_table,
indicies: self.indicies,
}
}
}
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