// SetCursor sets the cursor position in the current buffer.
func (g *TermboxGui) SetCursor(screenColumn, screenLine int) (err error) {
b := g.CurrBuff
if !b.ValidScreenLine(screenLine) {
return vigoerror.Err(0, screenLine)
}
if !b.ValidScreenColumn(screenColumn, screenLine) {
return vigoerror.Err(1, screenColumn)
}
termbox.SetCursor(screenColumn-1, screenLine-1)
return err
}
// SetScreenPos sets the Line number and Column position of this Buffer's Cursor.
func (b *Buffer) SetScreenPos(screenLine, screenColumn int) error {
if !b.ValidScreenLine(screenLine) {
return vigoerror.Err(0, screenLine)
}
if !b.ValidScreenColumn(screenColumn, screenLine) {
return vigoerror.Err(1, screenColumn)
}
b.setLine(screenLine - 1)
b.setCol(screenColumn - 1)
return nil
}
// SetCol sets the column position of this Buffer's Cursor.
func (b *Buffer) SetScreenCol(screenColumn int) error {
screenLine := b.Cursor.Line + 1
if !b.ValidScreenColumn(screenColumn, screenLine) {
return vigoerror.Err(1, screenColumn)
}
b.setCol(screenColumn - 1)
return nil
}
// SetScreenLine returns the line number of this Buffer's Cursor.
func (b *Buffer) SetScreenLine(screenLine int) error {
if !b.ValidScreenLine(screenLine) {
return vigoerror.Err(0, screenLine)
}
b.setLine(screenLine - 1)
screenColumn := b.Cursor.Col + 1
if !b.ValidScreenColumn(screenColumn, screenLine) {
b.setCol(len(b.Lines[b.Cursor.Line]) - 1)
}
return nil
}
