| 47 | } |
| 48 | |
| 49 | void WidgetRemoteView::drawDecoration(QPainter *p) |
| 50 | { |
| 51 | if (!m_tabFocusEnabled) |
| 52 | return; |
| 53 | |
| 54 | const auto data = frame().data.value<WidgetFrameData>(); |
| 55 | if (data.tabFocusRects.size() < 2) |
| 56 | return; |
| 57 | |
| 58 | p->save(); |
| 59 | p->setPen(Qt::darkGreen); |
| 60 | for (const auto &rect : data.tabFocusRects) |
| 61 | p->drawRect(mapFromSource(rect)); |
| 62 | |
| 63 | QVector<QLineF> lines; |
| 64 | lines.reserve(data.tabFocusRects.size()); |
| 65 | for (int i = 0; i < data.tabFocusRects.size() - 1; ++i) { |
| 66 | const auto r1 = mapFromSource(data.tabFocusRects.at(i)); |
| 67 | const auto r2 = mapFromSource(data.tabFocusRects.at(i + 1)); |
| 68 | |
| 69 | p->setPen(Qt::green); |
| 70 | QLineF l(r1.center(), r2.center()); |
| 71 | for (const auto &prevLine : std::as_const(lines)) { |
| 72 | QPointF pnt; |
| 73 | if (l.intersects(prevLine, &pnt) == QLineF::BoundedIntersection && pnt != l.p1() && pnt != l.p2()) { |
| 74 | p->setPen(Qt::red); |
| 75 | break; |
| 76 | } |
| 77 | } |
| 78 | lines.push_back(l); |
| 79 | drawArrow(p, r1.center(), r2.center()); |
| 80 | } |
| 81 | p->restore(); |
| 82 | } |