handle_drag()

void MayaFlux::Portal::Forma::Context::handle_drag ( double  px, double  py, IO::MouseButtons  btn  )

private

Definition at line 342 of file Context.cpp.

{
    const glm::vec2 ndc = to_ndc(px, py);
    const int btn_idx = static_cast<int>(btn);
 
    if (!m_dragging[btn_idx]) {
        const auto hit = m_layer->hit_test(ndc);
        if (hit)
            m_dragging[btn_idx] = hit;
        else
            return;
    }
 
    auto it = m_callbacks.find(*m_dragging[btn_idx]);
    if (it != m_callbacks.end() && it->second.drag.count(btn_idx))
        it->second.drag[btn_idx](*m_dragging[btn_idx], ndc);
}

References m_callbacks, m_dragging, m_layer, and to_ndc().

Referenced by register_handlers().

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