diff options
Diffstat (limited to 'src/helpers/Region.cpp')
| -rw-r--r-- | src/helpers/Region.cpp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/helpers/Region.cpp b/src/helpers/Region.cpp index 38a3760b..644bd5d4 100644 --- a/src/helpers/Region.cpp +++ b/src/helpers/Region.cpp @@ -104,3 +104,34 @@ bool CRegion::containsPoint(const Vector2D& vec) { bool CRegion::empty() { return !pixman_region32_not_empty(&m_rRegion); } + +Vector2D CRegion::closestPoint(const Vector2D& vec) { + double bestDist = __FLT_MAX__; + Vector2D leader = vec; + + for (auto& box : getRects()) { + double x = 0, y = 0; + + if (vec.x >= box.x2) + x = box.x2 - 1; + else if (vec.x < box.x1) + x = box.x1; + else + x = vec.x; + + if (vec.y >= box.y2) + y = box.y2 - 1; + else if (vec.y < box.y1) + y = box.y1; + else + y = vec.y; + + double distance = sqrt(pow(x, 2) + pow(y, 2)); + if (distance < bestDist) { + bestDist = distance; + leader = {x, y}; + } + } + + return leader; +}
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