mrtm/image-placeholder-generator
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Resize and center text

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This commit is contained in:
torbjornmolin
2025-09-28 18:32:38 +02:00
parent c2736613a9
commit eb4a06b669
2 changed files with 21 additions and 7 deletions
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21
src/main.rs
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@@ -74,28 +74,39 @@ fn get_files(options: GenerateOptions) -> Vec<(String, Vec<u8>)> {
let mut files: Vec<(String, Vec<u8>)> = Vec::new();
use text_to_png::TextRenderer;
let renderer = TextRenderer::default();
let image_file_ending = "png";
for f in options.filenames {
let mut imgbuf = image::ImageBuffer::new(options.width, options.height);
for (x, y, pixel) in imgbuf.enumerate_pixels_mut() {
*pixel = image::Rgba([255, 0, 2, 255]);
*pixel = image::Rgba([190, 190, 190, 255]);
}
let textpngdata = renderer
.render_text_to_png_data(&f, 64, "Dark Turquoise")
.render_text_to_png_data(format!("{}.{}", &f, image_file_ending), 100, "White")
.unwrap();
let other = image::ImageReader::new(Cursor::new(textpngdata.data))
let pngtextsource = image::ImageReader::new(Cursor::new(textpngdata.data))
.with_guessed_format()
.unwrap()
.decode()
.unwrap();
imgbuf.copy_from(&other, 0, 0).unwrap();
let resized_text = pngtextsource.resize(
options.width / 2,
options.height,
image::imageops::FilterType::Nearest,
);
let xpos = (imgbuf.width() - resized_text.width()) / 2;
let ypos = (imgbuf.height() - resized_text.height()) / 2;
imgbuf.copy_from(&resized_text, xpos, ypos).unwrap();
let mut buf = Cursor::new(Vec::new());
imgbuf.write_to(&mut buf, image::ImageFormat::Png).unwrap();
files.push((String::from(format!("{}.png", f)), buf.into_inner()));
files.push((
String::from(format!("{}.{}", f, image_file_ending)),
buf.into_inner(),
));
}
files