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More work on mouse selection

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This commit is contained in:
Kovid Goyal
2023-03-28 08:10:29 +05:30
parent 40ca46d8d8
commit 45c1e36de9
3 changed files with 40 additions and 6 deletions
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30
kittens/diff/mouse.go
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@@ -98,6 +98,7 @@ func (self *Handler) update_mouse_selection(ev *loop.MouseEvent) {
ms.end.x = ev.Cell.X
ms.end.x = utils.Max(ms.min_x, utils.Min(ms.end.x, ms.max_x))
ms.end.line = pos
self.draw_screen()
}
func (self *Handler) clear_mouse_selection() {
@@ -113,9 +114,34 @@ func (self *Handler) finish_mouse_selection(ev *loop.MouseEvent) {
ms.is_active = false
}
func (self *Handler) add_mouse_selection_to_line(line string, line_pos ScrollPos) {
func format_part_of_line(sgr string, start_x, end_x, y int) string {
// DECCARA used to set formatting in specified region using zero based indexing
return fmt.Sprintf("\x1b[%d;%d;%d;%d;%s$r", y+1, start_x+1, y+1, end_x+1, sgr)
}
func (self *Handler) add_mouse_selection_to_line(line string, line_pos ScrollPos, y int) string {
ms := &self.mouse_selection
if !ms.is_active {
return
return line
}
a, b := ms.start.line, ms.end.line
ax, bx := ms.start.x, ms.end.x
if b.Less(a) {
a, b = b, a
ax, bx = bx, ax
}
if a.Less(line_pos) {
if line_pos.Less(b) {
line += format_part_of_line(selection_sgr, 0, ms.max_x, y)
} else if b == line_pos {
line += format_part_of_line(selection_sgr, 0, bx, y)
}
} else if a == line_pos {
if line_pos.Less(b) {
line += format_part_of_line(selection_sgr, ax, ms.max_x, y)
} else if b == line_pos {
line += format_part_of_line(selection_sgr, ax, bx, y)
}
}
return line
}