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Diffstat (limited to 'vendor/png/examples/png-generate.rs')
-rw-r--r-- | vendor/png/examples/png-generate.rs | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/vendor/png/examples/png-generate.rs b/vendor/png/examples/png-generate.rs deleted file mode 100644 index 9036a04..0000000 --- a/vendor/png/examples/png-generate.rs +++ /dev/null @@ -1,55 +0,0 @@ -// For reading and opening files -use png::text_metadata::{ITXtChunk, ZTXtChunk}; -use std::env; -use std::fs::File; -use std::io::BufWriter; - -fn main() { - let path = env::args() - .nth(1) - .expect("Expected a filename to output to."); - let file = File::create(path).unwrap(); - let w = &mut BufWriter::new(file); - - let mut encoder = png::Encoder::new(w, 2, 1); // Width is 2 pixels and height is 1. - encoder.set_color(png::ColorType::Rgba); - encoder.set_depth(png::BitDepth::Eight); - // Adding text chunks to the header - encoder - .add_text_chunk( - "Testing tEXt".to_string(), - "This is a tEXt chunk that will appear before the IDAT chunks.".to_string(), - ) - .unwrap(); - encoder - .add_ztxt_chunk( - "Testing zTXt".to_string(), - "This is a zTXt chunk that is compressed in the png file.".to_string(), - ) - .unwrap(); - encoder - .add_itxt_chunk( - "Testing iTXt".to_string(), - "iTXt chunks support all of UTF8. Example: हिंदी.".to_string(), - ) - .unwrap(); - - let mut writer = encoder.write_header().unwrap(); - - let data = [255, 0, 0, 255, 0, 0, 0, 255]; // An array containing a RGBA sequence. First pixel is red and second pixel is black. - writer.write_image_data(&data).unwrap(); // Save - - // We can add a tEXt/zTXt/iTXt at any point before the encoder is dropped from scope. These chunks will be at the end of the png file. - let tail_ztxt_chunk = ZTXtChunk::new( - "Comment".to_string(), - "A zTXt chunk after the image data.".to_string(), - ); - writer.write_text_chunk(&tail_ztxt_chunk).unwrap(); - - // The fields of the text chunk are public, so they can be mutated before being written to the file. - let mut tail_itxt_chunk = ITXtChunk::new("Author".to_string(), "सायंतन खान".to_string()); - tail_itxt_chunk.compressed = true; - tail_itxt_chunk.language_tag = "hi".to_string(); - tail_itxt_chunk.translated_keyword = "लेखक".to_string(); - writer.write_text_chunk(&tail_itxt_chunk).unwrap(); -} |