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More work on mouse selection

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This commit is contained in:
Kovid Goyal 2023-03-28 10:29:45 +05:30
parent 45c1e36de9
commit 277dea647e
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 10 additions and 3 deletions
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9
kittens/diff/mouse.go
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@ -17,6 +17,7 @@ var _ = fmt.Print
type SelectionBoundary struct {
line ScrollPos
x int
in_first_half_of_cell bool
}
type MouseSelection struct {
@ -25,6 +26,8 @@ type MouseSelection struct {
min_x, max_x int
}
func (self *MouseSelection) IsEmpty() bool { return self.start == self.end }
type KittyOpts struct {
Wheel_scroll_multiplier int
}
@ -81,6 +84,8 @@ func (self *Handler) start_mouse_selection(ev *loop.MouseEvent) {
ms.max_x += available_cols
}
ms.start.x = utils.Max(ms.min_x, utils.Min(ms.start.x, ms.max_x))
cell_start := self.screen_size.cell_width * ev.Cell.X
ms.start.in_first_half_of_cell = ev.Pixel.X <= cell_start+self.screen_size.cell_width/2
ms.end = ms.start
ms.is_active = true
@ -97,6 +102,8 @@ func (self *Handler) update_mouse_selection(ev *loop.MouseEvent) {
self.logical_lines.IncrementScrollPosBy(&pos, y)
ms.end.x = ev.Cell.X
ms.end.x = utils.Max(ms.min_x, utils.Min(ms.end.x, ms.max_x))
cell_start := self.screen_size.cell_width * ms.end.x
ms.end.in_first_half_of_cell = ev.Pixel.X <= cell_start+self.screen_size.cell_width/2
ms.end.line = pos
self.draw_screen()
}
@ -121,7 +128,7 @@ func format_part_of_line(sgr string, start_x, end_x, y int) string {
func (self *Handler) add_mouse_selection_to_line(line string, line_pos ScrollPos, y int) string {
ms := &self.mouse_selection
if !ms.is_active {
if ms.IsEmpty() {
return line
}
a, b := ms.start.line, ms.end.line