erase()

MAYAFLUX_API void MayaFlux::Portal::Text::erase	(	EditableText &	s,
		int	n
	)

Erase n codepoints from the cursor.

Positive n erases forward: the codepoints at and after the cursor, which does not move. Negative n erases backward: the codepoints before the cursor, which moves back by the same count. Clamps at whichever text boundary is reached first.

Definition at line 31 of file TextEdit.cpp.

{
    if (n > 0) {
        for (int i = 0; i < n && s.cursor < s.text.size(); ++i) {
            const size_t next = next_codepoint_offset(s.text, s.cursor);
            s.text.erase(s.cursor, next - s.cursor);
        }
    } else {
        for (int i = 0; i > n && s.cursor > 0; --i) {
            const size_t prev = previous_codepoint_offset(s.text, s.cursor);
            s.text.erase(prev, s.cursor - prev);
            s.cursor = prev;
        }
    }
}

References MayaFlux::Portal::Text::EditableText::cursor, next_codepoint_offset(), previous_codepoint_offset(), and MayaFlux::Portal::Text::EditableText::text.

Referenced by MayaFlux::Portal::Forma::TextField::wire().

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