Piotr OsiewiczandSmit Barmase
d359a814f8
Closes #5355 Release Notes: - Fixed rendering glitches with files with more than 16 million lines (that occured due to floating number rounding errors). --------- Co-authored-by: Smit Barmase <heysmitbarmase@gmail.com>
98 lines
3.1 KiB
Rust
98 lines
3.1 KiB
Rust
use anyhow::Result;
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use base64::{
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Engine as _, alphabet,
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engine::{DecodePaddingMode, GeneralPurpose, GeneralPurposeConfig},
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};
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use gpui::{App, ClipboardItem, Image, ImageFormat, RenderImage, Window, img};
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use std::sync::Arc;
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use ui::{IntoElement, Styled, div, prelude::*};
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use crate::outputs::OutputContent;
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/// ImageView renders an image inline in an editor, adapting to the line height to fit the image.
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pub struct ImageView {
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clipboard_image: Arc<Image>,
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height: u32,
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width: u32,
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image: Arc<RenderImage>,
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}
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pub const STANDARD_INDIFFERENT: GeneralPurpose = GeneralPurpose::new(
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&alphabet::STANDARD,
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GeneralPurposeConfig::new()
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.with_encode_padding(false)
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.with_decode_padding_mode(DecodePaddingMode::Indifferent),
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);
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impl ImageView {
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pub fn from(base64_encoded_data: &str) -> Result<Self> {
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let filtered =
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base64_encoded_data.replace(&[' ', '\n', '\t', '\r', '\x0b', '\x0c'][..], "");
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let bytes = STANDARD_INDIFFERENT.decode(filtered)?;
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let format = image::guess_format(&bytes)?;
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let mut data = image::load_from_memory_with_format(&bytes, format)?.into_rgba8();
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// Convert from RGBA to BGRA.
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for pixel in data.chunks_exact_mut(4) {
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pixel.swap(0, 2);
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}
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let height = data.height();
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let width = data.width();
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let gpui_image_data = RenderImage::new(vec![image::Frame::new(data)]);
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let format = match format {
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image::ImageFormat::Png => ImageFormat::Png,
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image::ImageFormat::Jpeg => ImageFormat::Jpeg,
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image::ImageFormat::Gif => ImageFormat::Gif,
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image::ImageFormat::WebP => ImageFormat::Webp,
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image::ImageFormat::Tiff => ImageFormat::Tiff,
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image::ImageFormat::Bmp => ImageFormat::Bmp,
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format => {
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anyhow::bail!("unsupported image format {format:?}");
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}
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};
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// Convert back to a GPUI image for use with the clipboard
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let clipboard_image = Arc::new(Image::from_bytes(format, bytes));
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Ok(ImageView {
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clipboard_image,
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height,
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width,
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image: Arc::new(gpui_image_data),
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})
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}
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}
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impl Render for ImageView {
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fn render(&mut self, window: &mut Window, _: &mut Context<Self>) -> impl IntoElement {
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let line_height = window.line_height();
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let (height, width) = if self.height as f32 / f32::from(line_height) == u8::MAX as f32 {
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let height = u8::MAX as f32 * line_height;
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let width = self.width as f32 * height / self.height as f32;
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(height, width)
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} else {
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(self.height.into(), self.width.into())
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};
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let image = self.image.clone();
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div().h(height).w(width).child(img(image))
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}
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}
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impl OutputContent for ImageView {
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fn clipboard_content(&self, _window: &Window, _cx: &App) -> Option<ClipboardItem> {
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Some(ClipboardItem::new_image(self.clipboard_image.as_ref()))
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}
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fn has_clipboard_content(&self, _window: &Window, _cx: &App) -> bool {
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true
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}
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}
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