C++ (Cpp) gdk_event_get_event_sequence 예제들

예제 #1

파일: TouchInputHandler.cpp 프로젝트: xournalpp/xournalpp

bool TouchInputHandler::handleImpl(GdkEvent* event)
{
	XOJ_CHECK_TYPE(TouchInputHandler);

	GdkEventSequence* sequence = gdk_event_get_event_sequence(event);

	// Disallow multitouch
	if (this->currentSequence && this->currentSequence != sequence)
	{
		return false;
	}

	if (event->type == GDK_TOUCH_BEGIN && this->currentSequence == nullptr)
	{
		this->currentSequence = sequence;
		actionStart(event);
	}

	if (event->type == GDK_TOUCH_UPDATE)
	{
		actionMotion(event);
	}

	if (event->type == GDK_TOUCH_END || event->type == GDK_TOUCH_CANCEL)
	{
		actionEnd(event);
		this->currentSequence = nullptr;
	}

	return false;
}

예제 #2

파일: GtkTouchContextHelper.cpp 프로젝트: CannedFish/webkitgtk

bool GtkTouchContextHelper::handleEvent(GdkEvent* touchEvent)
{
#ifndef GTK_API_VERSION_2
    uint32_t sequence = GPOINTER_TO_UINT(gdk_event_get_event_sequence(touchEvent));

    switch (touchEvent->type) {
    case GDK_TOUCH_BEGIN: {
        ASSERT(!m_touchEvents.contains(sequence));
        GUniquePtr<GdkEvent> event(gdk_event_copy(touchEvent));
        m_touchEvents.add(sequence, std::move(event));
        break;
    }
    case GDK_TOUCH_UPDATE: {
        auto it = m_touchEvents.find(sequence);
        ASSERT(it != m_touchEvents.end());
        it->value.reset(gdk_event_copy(touchEvent));
        break;
    }
    case GDK_TOUCH_END:
        ASSERT(m_touchEvents.contains(sequence));
        m_touchEvents.remove(sequence);
        break;
    default:
        return false;
    }
#endif // GTK_API_VERSION_2

    return true;
}