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| -rw-r--r-- | README.md | 1 | ||||
| -rw-r--r-- | plugins/motiontrail.lua | 46 |
2 files changed, 47 insertions, 0 deletions
@@ -51,6 +51,7 @@ Plugin | Description [`linter`](https://github.com/drmargarido/linters)* | Linters for multiple languages [`macmodkeys`](plugins/macmodkeys.lua?raw=1) | Remaps mac modkeys `command/option` to `ctrl/alt` [`markers`](plugins/markers.lua?raw=1) | Add markers to docs and jump between them quickly *([screenshot](https://user-images.githubusercontent.com/3920290/82252149-5faaa200-9946-11ea-9199-bea2efb7ee23.png))* +[`motiontrail`](plugins/motiontrail.lua?raw=1) | Adds a motion-trail to the caret *([screenshot](https://user-images.githubusercontent.com/3920290/83256814-085ccb00-a1ab-11ea-9e35-e6633cbed1a9.gif))* [`openfilelocation`](plugins/openfilelocation.lua?raw=1) | Opens the parent directory of the current file in the file manager [`openselected`](plugins/openselected.lua?raw=1) | Opens the selected filename or url [`selectionhighlight`](plugins/selectionhighlight.lua?raw=1) | Highlights regions of code that match the current selection *([screenshot](https://user-images.githubusercontent.com/3920290/80710883-5f597c80-8ae7-11ea-97f0-76dfacc08439.png))* diff --git a/plugins/motiontrail.lua b/plugins/motiontrail.lua new file mode 100644 index 0000000..e688e1b --- /dev/null +++ b/plugins/motiontrail.lua @@ -0,0 +1,46 @@ +local core = require "core" +local config = require "core.config" +local style = require "core.style" +local DocView = require "core.docview" + +config.motiontrail_steps = 50 + + +local function lerp(a, b, t) + return a + (b - a) * t +end + + +local function get_caret_rect(dv) + local line, col = dv.doc:get_selection() + local x, y = dv:get_line_screen_position(line) + x = x + dv:get_col_x_offset(line, col) + return x, y, style.caret_width, dv:get_line_height() +end + + +local last_x, last_y, last_view + +local draw = DocView.draw + +function DocView:draw(...) + draw(self, ...) + if self ~= core.active_view then return end + + local x, y, w, h = get_caret_rect(self) + + if last_view == self and (x ~= last_x or y ~= last_y) then + local lx = x + for i = 0, 1, 1 / config.motiontrail_steps do + local ix = lerp(x, last_x, i) + local iy = lerp(y, last_y, i) + local iw = math.max(w, math.ceil(math.abs(ix - lx))) + renderer.draw_rect(ix, iy, iw, h, style.caret) + lx = ix + end + core.redraw = true + end + + last_view, last_x, last_y = self, x, y +end + |