diff options
Diffstat (limited to 'alacritty_terminal/src/selection.rs')
| -rw-r--r-- | alacritty_terminal/src/selection.rs | 44 |
1 files changed, 22 insertions, 22 deletions
diff --git a/alacritty_terminal/src/selection.rs b/alacritty_terminal/src/selection.rs index 369846cf..7f5c21ec 100644 --- a/alacritty_terminal/src/selection.rs +++ b/alacritty_terminal/src/selection.rs @@ -12,7 +12,7 @@ // See the License for the specific language governing permissions and // limitations under the License. -//! State management for a selection in the grid +//! State management for a selection in the grid. //! //! A selection should start when the mouse is clicked, and it should be //! finalized when the button is released. The selection should be cleared @@ -117,7 +117,7 @@ impl Selection { scrolling_region: &Range<Line>, offset: isize, ) -> Option<Selection> { - // Convert scrolling region from viewport to buffer coordinates + // Convert scrolling region from viewport to buffer coordinates. let region_start = num_lines - scrolling_region.start.0; let region_end = num_lines - scrolling_region.end.0; @@ -126,18 +126,18 @@ impl Selection { mem::swap(&mut start, &mut end); } - // Rotate start of selection + // Rotate start of selection. if (start.point.line < region_start || region_start == num_lines) && start.point.line >= region_end { start.point.line = usize::try_from(start.point.line as isize + offset).unwrap_or(0); - // If end is within the same region, delete selection once start rotates out + // If end is within the same region, delete selection once start rotates out. if start.point.line < region_end && end.point.line >= region_end { return None; } - // Clamp selection to start of region + // Clamp selection to start of region. if start.point.line >= region_start && region_start != num_lines { if self.ty != SelectionType::Block { start.point.col = Column(0); @@ -147,18 +147,18 @@ impl Selection { } } - // Rotate end of selection + // Rotate end of selection. if (end.point.line < region_start || region_start == num_lines) && end.point.line >= region_end { end.point.line = usize::try_from(end.point.line as isize + offset).unwrap_or(0); - // Delete selection if end has overtaken the start + // Delete selection if end has overtaken the start. if end.point.line > start.point.line { return None; } - // Clamp selection to end of region + // Clamp selection to end of region. if end.point.line < region_end { if self.ty != SelectionType::Block { end.point.col = Column(num_cols - 1); @@ -180,7 +180,7 @@ impl Selection { } // Simple selection is empty when the points are identical - // or two adjacent cells have the sides right -> left + // or two adjacent cells have the sides right -> left. start == end || (start.side == Side::Right && end.side == Side::Left @@ -228,13 +228,13 @@ impl Selection { let grid = term.grid(); let num_cols = grid.num_cols(); - // Order start above the end + // Order start above the end. let (mut start, mut end) = (self.region.start, self.region.end); if Self::points_need_swap(start.point, end.point) { mem::swap(&mut start, &mut end); } - // Clamp to inside the grid buffer + // Clamp to inside the grid buffer. let is_block = self.ty == SelectionType::Block; let (start, end) = Self::grid_clamp(start, end, is_block, grid.len()).ok()?; @@ -246,7 +246,7 @@ impl Selection { } } - // Bring start and end points in the correct order + /// Bring start and end points in the correct order. fn points_need_swap(start: Point<usize>, end: Point<usize>) -> bool { start.line < end.line || start.line == end.line && start.col > end.col } @@ -258,14 +258,14 @@ impl Selection { is_block: bool, lines: usize, ) -> Result<(Anchor, Anchor), ()> { - // Clamp selection inside of grid to prevent OOB + // Clamp selection inside of grid to prevent OOB. if start.point.line >= lines { - // Remove selection if it is fully out of the grid + // Remove selection if it is fully out of the grid. if end.point.line >= lines { return Err(()); } - // Clamp to grid if it is still partially visible + // Clamp to grid if it is still partially visible. if !is_block { start.side = Side::Left; start.point.col = Column(0); @@ -322,9 +322,9 @@ impl Selection { return None; } - // Remove last cell if selection ends to the left of a cell + // Remove last cell if selection ends to the left of a cell. if end.side == Side::Left && start.point != end.point { - // Special case when selection ends to left of first cell + // Special case when selection ends to left of first cell. if end.point.col == Column(0) { end.point.col = num_cols - 1; end.point.line += 1; @@ -333,11 +333,11 @@ impl Selection { } } - // Remove first cell if selection starts at the right of a cell + // Remove first cell if selection starts at the right of a cell. if start.side == Side::Right && start.point != end.point { start.point.col += 1; - // Wrap to next line when selection starts to the right of last column + // Wrap to next line when selection starts to the right of last column. if start.point.col == num_cols { start.point = Point::new(start.point.line.saturating_sub(1), Column(0)); } @@ -351,18 +351,18 @@ impl Selection { return None; } - // Always go top-left -> bottom-right + // Always go top-left -> bottom-right. if start.point.col > end.point.col { mem::swap(&mut start.side, &mut end.side); mem::swap(&mut start.point.col, &mut end.point.col); } - // Remove last cell if selection ends to the left of a cell + // Remove last cell if selection ends to the left of a cell. if end.side == Side::Left && start.point != end.point && end.point.col.0 > 0 { end.point.col -= 1; } - // Remove first cell if selection starts at the right of a cell + // Remove first cell if selection starts at the right of a cell. if start.side == Side::Right && start.point != end.point { start.point.col += 1; } |