diff options
author | CossonLeo | 2021-11-09 02:11:45 +0000 |
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committer | GitHub | 2021-11-09 02:11:45 +0000 |
commit | a69caff450ff8201e16d0a0b4617114e03ed3c97 (patch) | |
tree | dc33ad1996083c776234645cf4afd30167c2a136 /helix-view | |
parent | f96be0fcbc69e7a2fd6cb4ccd16ae99002109893 (diff) |
search_impl will only align cursor center when it isn't in view (#959)
Diffstat (limited to 'helix-view')
-rw-r--r-- | helix-view/src/view.rs | 41 |
1 files changed, 33 insertions, 8 deletions
diff --git a/helix-view/src/view.rs b/helix-view/src/view.rs index 11f30155..6a624ded 100644 --- a/helix-view/src/view.rs +++ b/helix-view/src/view.rs @@ -85,7 +85,12 @@ impl View { self.area.clip_left(OFFSET).clip_bottom(1) // -1 for statusline } - pub fn ensure_cursor_in_view(&mut self, doc: &Document, scrolloff: usize) { + // + pub fn offset_coords_to_in_view( + &self, + doc: &Document, + scrolloff: usize, + ) -> Option<(usize, usize)> { let cursor = doc .selection(self.id) .primary() @@ -104,23 +109,43 @@ impl View { let last_col = self.offset.col + inner_area.width.saturating_sub(1) as usize; - if line > last_line.saturating_sub(scrolloff) { + let row = if line > last_line.saturating_sub(scrolloff) { // scroll down - self.offset.row += line - (last_line.saturating_sub(scrolloff)); + self.offset.row + line - (last_line.saturating_sub(scrolloff)) } else if line < self.offset.row + scrolloff { // scroll up - self.offset.row = line.saturating_sub(scrolloff); - } + line.saturating_sub(scrolloff) + } else { + self.offset.row + }; - if col > last_col.saturating_sub(scrolloff) { + let col = if col > last_col.saturating_sub(scrolloff) { // scroll right - self.offset.col += col - (last_col.saturating_sub(scrolloff)); + self.offset.col + col - (last_col.saturating_sub(scrolloff)) } else if col < self.offset.col + scrolloff { // scroll left - self.offset.col = col.saturating_sub(scrolloff); + col.saturating_sub(scrolloff) + } else { + self.offset.col + }; + if row == self.offset.row && col == self.offset.col { + None + } else { + Some((row, col)) } } + pub fn ensure_cursor_in_view(&mut self, doc: &Document, scrolloff: usize) { + if let Some((row, col)) = self.offset_coords_to_in_view(doc, scrolloff) { + self.offset.row = row; + self.offset.col = col; + } + } + + pub fn is_cursor_in_view(&mut self, doc: &Document, scrolloff: usize) -> bool { + self.offset_coords_to_in_view(doc, scrolloff).is_none() + } + /// Calculates the last visible line on screen #[inline] pub fn last_line(&self, doc: &Document) -> usize { |