diff options
Diffstat (limited to 'helix-view/src/view.rs')
| -rw-r--r-- | helix-view/src/view.rs | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/helix-view/src/view.rs b/helix-view/src/view.rs index 93bb005e..1bf7c370 100644 --- a/helix-view/src/view.rs +++ b/helix-view/src/view.rs @@ -81,26 +81,28 @@ impl View { let pos = coords_at_pos(doc.text().slice(..), cursor); let line = pos.row; let col = pos.col; - let last_line = self.first_line + (self.area.height as usize).saturating_sub(2); + let last_line = self.last_line(doc); + + let scrolloff = PADDING.min(self.area.height as usize / 2); // TODO: user pref // TODO: not ideal const OFFSET: usize = 7; // 1 diagnostic + 5 linenr + 1 gutter let last_col = self.first_col + (self.area.width as usize - OFFSET); - if line > last_line.saturating_sub(PADDING) { + if line > last_line.saturating_sub(scrolloff) { // scroll down - self.first_line += line - (last_line.saturating_sub(PADDING)); - } else if line < self.first_line + PADDING { + self.first_line += line - (last_line.saturating_sub(scrolloff)); + } else if line < self.first_line + scrolloff { // scroll up - self.first_line = line.saturating_sub(PADDING); + self.first_line = line.saturating_sub(scrolloff); } - if col > last_col.saturating_sub(PADDING) { + if col > last_col.saturating_sub(scrolloff) { // scroll right - self.first_col += col - (last_col.saturating_sub(PADDING)); - } else if col < self.first_col + PADDING { + self.first_col += col - (last_col.saturating_sub(scrolloff)); + } else if col < self.first_col + scrolloff { // scroll left - self.first_col = col.saturating_sub(PADDING); + self.first_col = col.saturating_sub(scrolloff); } } |