fmt

CHANGELOG.md

@@ -2,7 +2,6 @@
 
 - Added windows support! (thank you to [@jarjk](https://github.com/jarjk) for helping out!)
 - Added keybindings (`0`/`$`) to scroll to left or right side of zoomed-in image ([#131](https://github.com/itsjunetime/tdf/pull/131), thank you [@IshDeshpa](https://github.com/IshDeshpa)!)
-- Added `-t` flag to use terminal foreground/background colors in pdf rendering ([#138](https://github.com/itsjunetime/tdf/pull/138), thank you [@unorsk](https://github.com/unorsk)!
 - Fixed issue with images clearing/flashing after displaying a certain number on kitty
 - (Internal) decreased runtime footprint of tokio runtime
 

src/converter.rs

@@ -72,7 +72,7 @@ pub async fn run_conversion_loop(
 	picker: Picker,
 	prerender: usize,
 	shms_work: bool
-) -> Result<(), Box<SendError<Result<ConvertedPage, RenderError>>>> {
+) -> Result<(), SendError<Result<ConvertedPage, RenderError>>> {
 	let mut images = vec![];
 	let mut page: usize = 0;
 	let pid = std::process::id();

src/main.rs

@@ -5,7 +5,7 @@ use core::{
 use std::{
 	borrow::Cow,
 	ffi::OsString,
-	io::{BufReader, IsTerminal as _, Read as _, Stdout, Write as _, stdout},
+	io::{BufReader, Read as _, Stdout, Write as _, stdout},
 	mem,
 	path::PathBuf,
 	sync::{Arc, Mutex},
@@ -116,8 +116,6 @@ async fn inner_main() -> Result<(), WrappedErr> {
 		optional -w,--white-color white: String
 		/// Custom black color, specified in css format (e.g "000000" or "rgb(0, 0, 0)")
 		optional -b,--black-color black: String
-		/// Use terminal foreground/background colors for the PDF
-		optional -t,--terminal-colors
 		/// Print the version and exit
 		optional --version
 		/// PDF file to read
@@ -139,49 +137,37 @@ async fn inner_main() -> Result<(), WrappedErr> {
 		.canonicalize()
 		.map_err(|e| WrappedErr(format!("Cannot canonicalize provided file: {e}").into()))?;
 
-	if flags.terminal_colors && (flags.black_color.is_some() || flags.white_color.is_some()) {
-		return Err(WrappedErr(
-			"--terminal-colors cannot be combined with --black-color or --white-color".into()
-		));
-	}
-
-	let (black, white) = if flags.terminal_colors {
-		query_terminal_colors()
-	} else {
-		let black = flags
-			.black_color
-			.as_deref()
-			.map(|color| {
-				parse_color_to_i32(color).map_err(|e| {
-					WrappedErr(
-						format!(
-							"Couldn't parse black color {color:?}: {e} - is it formatted like a CSS color?"
-						)
-						.into()
+	let black = flags
+		.black_color
+		.as_deref()
+		.map(|color| {
+			parse_color_to_i32(color).map_err(|e| {
+				WrappedErr(
+					format!(
+						"Couldn't parse black color {color:?}: {e} - is it formatted like a CSS color?"
 					)
-				})
+					.into()
+				)
 			})
-			.transpose()?
-			.unwrap_or(MUPDF_BLACK);
+		})
+		.transpose()?
+		.unwrap_or(MUPDF_BLACK);
 
-		let white = flags
-			.white_color
-			.as_deref()
-			.map(|color| {
-				parse_color_to_i32(color).map_err(|e| {
-					WrappedErr(
-						format!(
-							"Couldn't parse white color {color:?}: {e} - is it formatted like a CSS color?"
-						)
-						.into()
+	let white = flags
+		.white_color
+		.as_deref()
+		.map(|color| {
+			parse_color_to_i32(color).map_err(|e| {
+				WrappedErr(
+					format!(
+						"Couldn't parse white color {color:?}: {e} - is it formatted like a CSS color?"
 					)
-				})
+					.into()
+				)
 			})
-			.transpose()?
-			.unwrap_or(MUPDF_WHITE);
-
-		(black, white)
-	};
+		})
+		.transpose()?
+		.unwrap_or(MUPDF_WHITE);
 
 	// need to keep it around throughout the lifetime of the program, but don't rly need to use it.
 	// Just need to make sure it doesn't get dropped yet.
@@ -579,89 +565,6 @@ fn parse_color_to_i32(cs: &str) -> Result<i32, csscolorparser::ParseColorError>
 	Ok(i32::from_be_bytes([0, r, g, b]))
 }
 
-fn query_terminal_colors() -> (i32, i32) {
-	if !std::io::stdin().is_terminal() || !std::io::stdout().is_terminal() {
-		return (MUPDF_BLACK, MUPDF_WHITE);
-	}
-
-	let Ok(()) = enable_raw_mode() else {
-		return (MUPDF_BLACK, MUPDF_WHITE);
-	};
-
-	struct RawModeGuard;
-	impl Drop for RawModeGuard {
-		fn drop(&mut self) {
-			let _ = disable_raw_mode();
-		}
-	}
-	let _guard = RawModeGuard;
-
-	let stdin = std::io::stdin();
-	let mut handle = stdin.lock();
-
-	let fg = query_osc_color(10, &mut handle);
-	let bg = query_osc_color(11, &mut handle);
-	drop(handle);
-
-	(fg.unwrap_or(MUPDF_BLACK), bg.unwrap_or(MUPDF_WHITE))
-}
-
-fn query_osc_color(osc: u8, handle: &mut std::io::StdinLock<'_>) -> Option<i32> {
-	print!("\x1b]{osc};?\x1b\\");
-	std::io::stdout().flush().ok()?;
-
-	// response looks like "\u{1b}]10;rgb:rrrr/bbbb/gggg\u{1b}\\" or "\u{1b}]10;rgb:rr/bb/gg\u{1b}\\"
-	// or if osc is 11, "\u{1b}]11;rgb:rrrr/bbbb/gggg\u{1b}\\" or "\u{1b}]11;rgb:rr/bb/gg\u{1b}\\"
-
-	// We expect the response to be either 19 or 25 bytes.
-	let mut response_buf = [0u8; 25];
-
-	handle.read_exact(&mut response_buf[..19])
-		.inspect_err(|e| eprintln!("Couldn't get a response from your terminal for querying OSC {osc}; please file a bug with tdf with your terminal emulator (underlying err: {e})"))
-		.ok()?;
-
-	let two_digit_colors = response_buf[11] == b'/';
-
-	if !two_digit_colors {
-		handle.read_exact(&mut response_buf[19..])
-			.inspect_err(|e| eprintln!("Couldn't get a response from your terminal for querying OSC {osc}; please file a bug with tdf with your terminal emulator (underlying err: {e})"))
-			.ok()?;
-	}
-
-	osc_response_buf_to_color(response_buf)
-}
-
-fn osc_response_buf_to_color(response_buf: [u8; 25]) -> Option<i32> {
-	fn parse(ascii_hex_bytes: &[u8]) -> Option<u8> {
-		let mut color = 0;
-
-		for byte in ascii_hex_bytes {
-			color = (color << 4)
-				+ (match byte {
-					b'0'..=b'9' => byte - b'0',
-					b'A'..=b'F' => byte - (b'A' - 10),
-					b'a'..=b'f' => byte - (b'a' - 10),
-					_ => return None
-				});
-		}
-
-		Some(color)
-	}
-
-	let two_digit_colors = response_buf[11] == b'/';
-
-	// this is minimimal validation.
-	// the response either has `rrrr/gggg/bbbb` or `rr/gg/bb` starting at byte 9.
-	// So we grab the first two digits out of the r, g, and b sections (since we can only support
-	// 8-bit colors with mupdf; we can't do the 16-bits that the terminal might respond with), we
-	// parse them, and we return it as an i32.
-	let r = parse(&response_buf[9..11])?;
-	let g = parse(&response_buf[if two_digit_colors { 12..14 } else { 14..16 }])?;
-	let b = parse(&response_buf[if two_digit_colors { 15..17 } else { 19..21 }])?;
-
-	Some(i32::from_be_bytes([0, r, g, b]))
-}
-
 fn get_font_size_through_stdio() -> Result<(u16, u16), WrappedErr> {
 	// send the command code to get the terminal window size
 	print!("\x1b[14t");
@@ -728,19 +631,3 @@ fn get_font_size_through_stdio() -> Result<(u16, u16), WrappedErr> {
 
 	Ok((w, h))
 }
-
-#[cfg(test)]
-mod tests {
-	use super::*;
-
-	#[test]
-	fn osc_response_parsing() {
-		fn eq(bytes: [u8; 25], r: u8, g: u8, b: u8) {
-			let resp = osc_response_buf_to_color(bytes);
-			assert_eq!(resp, Some(i32::from_be_bytes([0, r, g, b])));
-		}
-
-		eq(*b"\x1b]10;rgb:11/22/33\x1b\\000000", 0x11, 0x22, 0x33);
-		eq(*b"\x1b]11;rgb:aa11/23bf/fff0\x1b1", 0xaa, 0x23, 0xff);
-	}
-}

src/tui.rs

@@ -72,7 +72,7 @@ struct PageConstraints {
 	r_to_l: bool
 }
 
-#[derive(Default, Debug, Clone, Copy)]
+#[derive(Default, Debug)]
 struct Zoom {
 	// just how much 'zoom' you have. 0 means it fills the screen (instead of fits), such
 	// that one axis is fully on-screen
@@ -86,7 +86,7 @@ struct Zoom {
 }
 impl Zoom {
 	/// Returns the zoom factor, where 1 is the default and means fill-screen
-	fn factor(self) -> f32 {
+	fn factor(&self) -> f32 {
 		// TODO: Make these configurable once we have a good way to set options after startup
 		const ZOOM_RATE: f32 = 1.1;
 		const ZOOM_RATE_GRANULAR: f32 = 1.05;
@@ -262,7 +262,7 @@ impl Tui {
 			let img_page_w_ratio = img_section_w / initial_page_w;
 			let img_page_h_ratio = img_section_h / initial_page_h;
 
-			fn shrink_move_page(dim: &mut u16, pos: &mut u16, axis_zoom_factor: f32) {
+			let shrink_move_page = |dim: &mut u16, pos: &mut u16, axis_zoom_factor: f32| {
 				let old_dim = *dim;
 				// The axis zoom factor tells us what portion of the axis
 				// we need to show.
@@ -272,56 +272,26 @@ impl Tui {
 					.checked_sub(*dim)
 					.expect("zooming out should shrink the image")
 					/ 2;
-			}
-
-			fn shrink_move_two_pass(
-				zoom: &mut Zoom,
-				dim: &mut u16,
-				pos: &mut u16,
-				zoom_factor: f32,
-				axis_zoom_factor: f32
-			) {
-				// To detect if we're already at fit-screen, we perform a first
-				// pass on `img_area` that emulates the last call to
-				// `render_zoomed` by subtracting from the `zoom`'s level. This
-				// holds because the `img_area` that gets passed is always the
-				// same.
-				let mut first_pass_dim = *dim;
-				let mut first_pass_pos = *pos;
-				let mut first_pass_zoom = *zoom;
-
-				if first_pass_zoom.level.is_negative() {
-					first_pass_zoom.step_in();
-				}
-				let first_pass_zoom_factor = first_pass_zoom.factor();
-				shrink_move_page(
-					&mut first_pass_dim,
-					&mut first_pass_pos,
-					first_pass_zoom_factor.max(1.0 / axis_zoom_factor)
-				);
-
-				log::debug!("first_pass_dim: {first_pass_dim}, first_pass_pos: {first_pass_pos}");
-				// vertical scroll / tall image. zooming out means decreasing
-				// the width of the page area
-				// use `max` to disallow zooming out past fit-screen
-				shrink_move_page(dim, pos, zoom_factor.max(1.0 / axis_zoom_factor));
-
-				log::debug!("new dim: {dim}, new pos: {pos}");
-				// The moment the image area is left unmodified, we've hit
-				// fit-screen and the zoom level ought be normalized.
-				if first_pass_dim == *dim && first_pass_pos == *pos {
-					zoom.step_in();
-				}
-			}
-
-			let (dim, pos, axis_zoom_factor) = if img_page_w_ratio < img_page_h_ratio {
-				(&mut img_area.width, &mut img_area.x, img_page_h_ratio)
-			} else {
-				// horizontal scroll / wide image. zooming out means decreasing
-				// the height of the page area
-				(&mut img_area.height, &mut img_area.y, img_page_w_ratio)
 			};
-			shrink_move_two_pass(zoom, dim, pos, zoom_factor, axis_zoom_factor);
+
+			// TODO: Detect max zoom-out in zoom levels
+			if img_page_w_ratio < img_page_h_ratio {
+				// vertical scroll / tall image. zooming out means decreasing the width of the page area
+				shrink_move_page(
+					&mut img_area.width,
+					&mut img_area.x,
+					// disallow zooming out past fit-screen
+					zoom_factor.max(1.0 / img_page_h_ratio)
+				);
+			} else {
+				// horizontal scroll / wide image. zooming out means decreasing the width of the page area
+				shrink_move_page(
+					&mut img_area.height,
+					&mut img_area.y,
+					// disallow zooming out past fit-screen
+					zoom_factor.max(1.0 / img_page_w_ratio)
+				);
+			}
 		}
 		log::debug!("after adjustment, page area is {img_area:#?}");
 
@@ -738,20 +708,20 @@ impl Tui {
 						term.push(c);
 						InputAction::Redraw.into()
 					}
-					KeyCode::Char(c)
-						if let BottomMessage::Input(InputCommand::GoToPage(_)) =
-							self.bottom_msg && matches!(c, 'g' if self.is_kitty) =>
-					{
-						self.set_msg(MessageSetting::Pop);
-						self.update_zoom(Zoom::pan_bottom)
-					}
 					KeyCode::Char(c)
 						if let BottomMessage::Input(InputCommand::GoToPage(ref mut page)) =
-							self.bottom_msg =>
+							self.bottom_msg && matches!(c, 'g' if self.is_kitty) =>
 						c.to_digit(10).map(|input_num| {
 							*page = (*page * 10) + input_num as usize;
 							InputAction::Redraw
 						}),
+					KeyCode::Char(_)
+						if let BottomMessage::Input(InputCommand::GoToPage(_)) =
+							self.bottom_msg =>
+					{
+						self.set_msg(MessageSetting::Pop);
+						self.update_zoom(Zoom::pan_bottom)
+					}
 					KeyCode::Char(c) => match c {
 						'l' => self.change_page(PageChange::Next, ChangeAmount::Single),
 						'j' => self.change_page(PageChange::Next, ChangeAmount::WholeScreen),