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Fix cursor column tracking in TextEdit

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This commit is contained in:
Luke I. Wilson 2021-03-11 23:16:19 -06:00
parent a4e2dae43e
commit b0cb1bedd8
1 changed files with 6 additions and 0 deletions
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6
ui/textedit.go
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@ -181,6 +181,7 @@ func (t *TextEdit) Insert(contents string) {
t.SetLineCol(t.cury, t.curx+1) // Advance the cursor t.SetLineCol(t.cury, t.curx+1) // Advance the cursor
} }
} }
t.prevCurCol = t.curx
} }
// insertNewLine inserts a line break at the cursor and sets the cursor position to the first // insertNewLine inserts a line break at the cursor and sets the cursor position to the first
@ -198,6 +199,7 @@ func (t *TextEdit) insertNewLine() {
t.buffer[t.cury+1] = string(newLineRunes) // Assign the new line t.buffer[t.cury+1] = string(newLineRunes) // Assign the new line
t.SetLineCol(t.cury+1, 0) // Go to start of new line t.SetLineCol(t.cury+1, 0) // Go to start of new line
t.prevCurCol = t.curx
} }
// GetLineCol returns (line, col) of the cursor. Zero is origin for both. // GetLineCol returns (line, col) of the cursor. Zero is origin for both.
@ -402,12 +404,16 @@ func (t *TextEdit) HandleEvent(event tcell.Event) bool {
t.CursorRight() t.CursorRight()
case tcell.KeyHome: case tcell.KeyHome:
t.SetLineCol(t.cury, 0) t.SetLineCol(t.cury, 0)
t.prevCurCol = t.curx
case tcell.KeyEnd: case tcell.KeyEnd:
t.SetLineCol(t.cury, len(t.buffer[t.cury])) t.SetLineCol(t.cury, len(t.buffer[t.cury]))
t.prevCurCol = t.curx
case tcell.KeyPgUp: case tcell.KeyPgUp:
t.SetLineCol(t.scrolly-t.height, t.curx) // Go a page up t.SetLineCol(t.scrolly-t.height, t.curx) // Go a page up
t.prevCurCol = t.curx
case tcell.KeyPgDn: case tcell.KeyPgDn:
t.SetLineCol(t.scrolly+t.height*2-1, t.curx) // Go a page down t.SetLineCol(t.scrolly+t.height*2-1, t.curx) // Go a page down
t.prevCurCol = t.curx
// Deleting // Deleting
case tcell.KeyBackspace: case tcell.KeyBackspace: