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kitten diff: add support for sticky header

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This commit is contained in:
Petar Dobrev
2026-04-18 18:26:30 +03:00
parent 2af98fd4fd
commit 7729e6e1ae
3 changed files with 50 additions and 2 deletions
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26
kittens/diff/ui.go
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@@ -414,7 +414,11 @@ func (self *Handler) draw_screen() {
}
pos := self.scroll_pos
seen_images := utils.NewSet[int]()
for num_written := 0; num_written < self.screen_size.num_lines; num_written++ {
num_written := 0
if conf != nil && conf.Sticky_header {
num_written = self.draw_sticky_header(&pos)
}
for ; num_written < self.screen_size.num_lines; num_written++ {
ll := self.logical_lines.At(pos.logical_line)
if ll == nil || self.logical_lines.ScreenLineAt(pos) == nil {
num_written--
@@ -443,6 +447,26 @@ func (self *Handler) draw_screen() {
self.draw_status_line()
}
func (self *Handler) draw_sticky_header(pos *ScrollPos) int {
title_idx := self.logical_lines.TitleLineIdxFor(pos.logical_line)
if title_idx < 0 {
return 0
}
// file title
self.logical_lines.At(title_idx).render_screen_line(0, self.lp, self.logical_lines.margin_size, self.logical_lines.columns)
self.lp.MoveCursorVertically(1)
self.lp.QueueWriteString("\x1b[m\r")
self.logical_lines.IncrementScrollPosBy(pos, 1)
// separator
self.logical_lines.At(title_idx+1).render_screen_line(0, self.lp, self.logical_lines.margin_size, self.logical_lines.columns)
self.lp.MoveCursorVertically(1)
self.lp.QueueWriteString("\x1b[m\r")
self.logical_lines.IncrementScrollPosBy(pos, 1)
return 2
}
func (self *Handler) draw_status_line() {
if self.logical_lines == nil || self.diff_map == nil {
return