| 39 | } |
| 40 | |
| 41 | float VPath::VPathData::length() const |
| 42 | { |
| 43 | if (!mLengthDirty) return mLength; |
| 44 | |
| 45 | mLengthDirty = false; |
| 46 | mLength = 0.0; |
| 47 | |
| 48 | size_t i = 0; |
| 49 | for (auto e : m_elements) { |
| 50 | switch (e) { |
| 51 | case VPath::Element::MoveTo: |
| 52 | i++; |
| 53 | break; |
| 54 | case VPath::Element::LineTo: { |
| 55 | mLength += VLine(m_points[i - 1], m_points[i]).length(); |
| 56 | i++; |
| 57 | break; |
| 58 | } |
| 59 | case VPath::Element::CubicTo: { |
| 60 | mLength += VBezier::fromPoints(m_points[i - 1], m_points[i], |
| 61 | m_points[i + 1], m_points[i + 2]) |
| 62 | .length(); |
| 63 | i += 3; |
| 64 | break; |
| 65 | } |
| 66 | case VPath::Element::Close: |
| 67 | break; |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | return mLength; |
| 72 | } |
| 73 | |
| 74 | void VPath::VPathData::checkNewSegment() |
| 75 | { |