add scrolling support to file preview

2 files changed, 8 insertions, 3 deletions

diff --git a/src/ui/views/tui_folder_view.rs b/src/ui/views/tui_folder_view.rs
index 398c3d8..944e1f5 100644
--- a/src/ui/views/tui_folder_view.rs
+++ b/src/ui/views/tui_folder_view.rs
@@ -48,7 +48,7 @@ impl<'a> Widget for TuiFolderView<'a> {
                     Some(_) => (true, &display_options.default_layout),
                     None => match curr_entry {
                         None => (false, &display_options.no_preview_layout),
-                        Some(e) => match preview_context.get_preview(e.file_path()) {
+                        Some(e) => match preview_context.get_preview_ref(e.file_path()) {
                             Some(Some(p)) if p.status.code() != Some(1) => {
                                 (true, &display_options.default_layout)
                             }
@@ -158,7 +158,7 @@ impl<'a> Widget for TuiFolderView<'a> {
         if let Some(list) = child_list.as_ref() {
             TuiDirList::new(list).render(layout_rect[2], buf);
         } else if let Some(entry) = curr_entry {
-            if let Some(Some(preview)) = preview_context.get_preview(entry.file_path()) {
+            if let Some(Some(preview)) = preview_context.get_preview_ref(entry.file_path()) {
                 match preview.status.code() {
                     Some(1) | None => {}
                     _ => {
diff --git a/src/ui/widgets/tui_file_preview.rs b/src/ui/widgets/tui_file_preview.rs
index 0a784cc..cc9e7bd 100644
--- a/src/ui/widgets/tui_file_preview.rs
+++ b/src/ui/widgets/tui_file_preview.rs
@@ -21,7 +21,12 @@ impl<'a> TuiFilePreview<'a> {
 impl<'a> Widget for TuiFilePreview<'a> {
     fn render(self, area: Rect, buf: &mut Buffer) {
         let text: Text = ansi_to_text(self.preview.output.as_str().as_bytes().to_vec()).unwrap();
-        for (y, line) in (area.y..area.y + area.height).zip(text.lines) {
+        for (line, y) in text
+            .lines
+            .iter()
+            .skip(self.preview.index)
+            .zip(area.y..area.y + area.height)
+        {
             buf.set_spans(area.x, y, &line, area.width);
         }
     }