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https://github.com/itsjunetime/tdf.git
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4 Commits
| Author | SHA1 | Date | |
|---|---|---|---|
| 8d73a38c51 | |||
| 2fbf7b3ef2 | |||
| 7f07c21791 | |||
| 25579ad2c3 |
+1
-1
@@ -72,7 +72,7 @@ pub async fn run_conversion_loop(
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picker: Picker,
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prerender: usize,
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shms_work: bool
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) -> Result<(), Box<SendError<Result<ConvertedPage, RenderError>>>> {
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) -> Result<(), SendError<Result<ConvertedPage, RenderError>>> {
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let mut images = vec![];
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let mut page: usize = 0;
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let pid = std::process::id();
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+30
-60
@@ -72,7 +72,7 @@ struct PageConstraints {
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r_to_l: bool
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}
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#[derive(Default, Debug, Clone, Copy)]
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#[derive(Default, Debug)]
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struct Zoom {
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// just how much 'zoom' you have. 0 means it fills the screen (instead of fits), such
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// that one axis is fully on-screen
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@@ -86,7 +86,7 @@ struct Zoom {
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}
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impl Zoom {
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/// Returns the zoom factor, where 1 is the default and means fill-screen
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fn factor(self) -> f32 {
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fn factor(&self) -> f32 {
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// TODO: Make these configurable once we have a good way to set options after startup
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const ZOOM_RATE: f32 = 1.1;
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const ZOOM_RATE_GRANULAR: f32 = 1.05;
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@@ -262,7 +262,7 @@ impl Tui {
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let img_page_w_ratio = img_section_w / initial_page_w;
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let img_page_h_ratio = img_section_h / initial_page_h;
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fn shrink_move_page(dim: &mut u16, pos: &mut u16, axis_zoom_factor: f32) {
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let shrink_move_page = |dim: &mut u16, pos: &mut u16, axis_zoom_factor: f32| {
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let old_dim = *dim;
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// The axis zoom factor tells us what portion of the axis
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// we need to show.
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@@ -272,56 +272,26 @@ impl Tui {
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.checked_sub(*dim)
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.expect("zooming out should shrink the image")
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/ 2;
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}
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fn shrink_move_two_pass(
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zoom: &mut Zoom,
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dim: &mut u16,
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pos: &mut u16,
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zoom_factor: f32,
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axis_zoom_factor: f32
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) {
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// To detect if we're already at fit-screen, we perform a first
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// pass on `img_area` that emulates the last call to
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// `render_zoomed` by subtracting from the `zoom`'s level. This
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// holds because the `img_area` that gets passed is always the
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// same.
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let mut first_pass_dim = *dim;
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let mut first_pass_pos = *pos;
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let mut first_pass_zoom = *zoom;
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if first_pass_zoom.level.is_negative() {
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first_pass_zoom.step_in();
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}
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let first_pass_zoom_factor = first_pass_zoom.factor();
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shrink_move_page(
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&mut first_pass_dim,
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&mut first_pass_pos,
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first_pass_zoom_factor.max(1.0 / axis_zoom_factor)
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);
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log::debug!("first_pass_dim: {first_pass_dim}, first_pass_pos: {first_pass_pos}");
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// vertical scroll / tall image. zooming out means decreasing
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// the width of the page area
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// use `max` to disallow zooming out past fit-screen
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shrink_move_page(dim, pos, zoom_factor.max(1.0 / axis_zoom_factor));
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log::debug!("new dim: {dim}, new pos: {pos}");
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// The moment the image area is left unmodified, we've hit
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// fit-screen and the zoom level ought be normalized.
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if first_pass_dim == *dim && first_pass_pos == *pos {
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zoom.step_in();
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}
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}
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let (dim, pos, axis_zoom_factor) = if img_page_w_ratio < img_page_h_ratio {
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(&mut img_area.width, &mut img_area.x, img_page_h_ratio)
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} else {
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// horizontal scroll / wide image. zooming out means decreasing
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// the height of the page area
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(&mut img_area.height, &mut img_area.y, img_page_w_ratio)
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};
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shrink_move_two_pass(zoom, dim, pos, zoom_factor, axis_zoom_factor);
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// TODO: Detect max zoom-out in zoom levels
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if img_page_w_ratio < img_page_h_ratio {
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// vertical scroll / tall image. zooming out means decreasing the width of the page area
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shrink_move_page(
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&mut img_area.width,
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&mut img_area.x,
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// disallow zooming out past fit-screen
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zoom_factor.max(1.0 / img_page_h_ratio)
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);
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} else {
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// horizontal scroll / wide image. zooming out means decreasing the width of the page area
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shrink_move_page(
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&mut img_area.height,
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&mut img_area.y,
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// disallow zooming out past fit-screen
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zoom_factor.max(1.0 / img_page_w_ratio)
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);
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}
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}
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log::debug!("after adjustment, page area is {img_area:#?}");
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@@ -738,20 +708,20 @@ impl Tui {
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term.push(c);
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InputAction::Redraw.into()
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}
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KeyCode::Char(c)
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if let BottomMessage::Input(InputCommand::GoToPage(_)) =
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self.bottom_msg && matches!(c, 'g' if self.is_kitty) =>
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{
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self.set_msg(MessageSetting::Pop);
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self.update_zoom(Zoom::pan_bottom)
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}
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KeyCode::Char(c)
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if let BottomMessage::Input(InputCommand::GoToPage(ref mut page)) =
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self.bottom_msg =>
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self.bottom_msg && matches!(c, 'g' if self.is_kitty) =>
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c.to_digit(10).map(|input_num| {
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*page = (*page * 10) + input_num as usize;
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InputAction::Redraw
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}),
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KeyCode::Char(_)
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if let BottomMessage::Input(InputCommand::GoToPage(_)) =
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self.bottom_msg =>
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{
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self.set_msg(MessageSetting::Pop);
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self.update_zoom(Zoom::pan_bottom)
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}
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KeyCode::Char(c) => match c {
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'l' => self.change_page(PageChange::Next, ChangeAmount::Single),
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'j' => self.change_page(PageChange::Next, ChangeAmount::WholeScreen),
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