diff options
Diffstat (limited to 'plugins/selectionhighlight.lua')
| -rw-r--r-- | plugins/selectionhighlight.lua | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/plugins/selectionhighlight.lua b/plugins/selectionhighlight.lua new file mode 100644 index 0000000..31a5042 --- /dev/null +++ b/plugins/selectionhighlight.lua @@ -0,0 +1,26 @@ +local style = require "core.style" +local DocView = require "core.docview" + +-- originally written by luveti + +local draw_line_body = DocView.draw_line_body + +function DocView:draw_line_body(idx, x, y) + local line1, col1, line2, col2 = self.doc:get_selection(true) + if line1 == line2 and col1 ~= col2 then + local lh = self:get_line_height() + local selected_text = self:get_cached_line(line1).text:sub(col1, col2 - 1) + local current_line_text = self:get_cached_line(idx).text + local last_col = 1 + while true do + local start_col, end_col = current_line_text:find(selected_text, last_col, true) + if start_col == nil then break end + local x1 = x + self:get_col_x_offset(idx, start_col) + local x2 = x + self:get_col_x_offset(idx, end_col + 1) + renderer.draw_rect(x1, y, x2 - x1, lh, style.selection) + last_col = end_col + 1 + end + end + draw_line_body(self, idx, x, y) +end + |