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Fix rendering when line wraps

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This commit is contained in:
Kovid Goyal
2022-10-13 10:37:42 +05:30
parent d27cf045e5
commit 9419fbc77c
1 changed files with 14 additions and 7 deletions
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21
tools/tui/readline/draw.go
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@@ -13,7 +13,11 @@ func (self *Readline) write_line_with_prompt(line, prompt string, screen_width i
self.loop.QueueWriteString(prompt)
self.loop.QueueWriteString(line)
w := wcswidth.Stringwidth(prompt) + wcswidth.Stringwidth(line)
return w / screen_width
num_lines := w / screen_width
if w%screen_width == 0 {
num_lines--
}
return num_lines
}
func (self *Readline) move_cursor_to_text_position(pos, screen_width int) int {
@@ -26,18 +30,21 @@ func (self *Readline) move_cursor_to_text_position(pos, screen_width int) int {
}
func (self *Readline) redraw() {
if self.cursor_y > 0 {
self.loop.MoveCursorVertically(-self.cursor_y)
}
self.loop.QueueWriteString("\r")
self.loop.ClearToEndOfScreen()
line_with_cursor := 0
screen_size, err := self.loop.ScreenSize()
if err != nil {
screen_size.WidthCells = 80
screen_size.HeightCells = 24
}
screen_width := int(screen_size.WidthCells)
if screen_width < 4 {
return
}
if self.cursor_y > 0 {
self.loop.MoveCursorVertically(-self.cursor_y)
}
self.loop.QueueWriteString("\r")
self.loop.ClearToEndOfScreen()
line_with_cursor := 0
y := 0
for i, line := range self.lines {
p := self.prompt