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Diffstat (limited to 'src/mbgl/text/rotation_range.hpp')
-rw-r--r-- | src/mbgl/text/rotation_range.hpp | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/mbgl/text/rotation_range.hpp b/src/mbgl/text/rotation_range.hpp new file mode 100644 index 0000000000..4968fda164 --- /dev/null +++ b/src/mbgl/text/rotation_range.hpp @@ -0,0 +1,54 @@ +#ifndef MBGL_TEXT_ROTATION_RANGE +#define MBGL_TEXT_ROTATION_RANGE + +#include <mbgl/util/math.hpp> +#include <mbgl/text/types.hpp> + +#include <vector> +#include <cassert> + +namespace mbgl { + +/* + * Combine an array of collision ranges to form a continuous + * range that includes 0. Collisions within the ignoreRange are ignored + */ +CollisionRange mergeCollisions(const CollisionList &collisions, + PlacementRange ignoreRange); + +/* + * Calculate collision ranges for two rotating boxes.e + */ +CollisionList rotatingRotatingCollisions(const CollisionRect &a, + const CollisionRect &b, + const CollisionAnchor &anchorToAnchor); + +/* + * Return the intersection points of a circle and a line segment; + */ +void circleEdgeCollisions(std::back_insert_iterator<CollisionAngles> angles, + const CollisionPoint &corner, float radius, + const CollisionPoint &p1, const CollisionPoint &p2); + +/* + * Calculate the ranges for which the corner, + * rotatated around the anchor, is within the box; + */ +void cornerBoxCollisions(std::back_insert_iterator<CollisionList> collisions, + const CollisionPoint &corner, + const CollisionCorners &boxCorners, bool flip = false); + +/* + * Calculate collision ranges for a rotating box and a fixed box; + */ +CollisionList rotatingFixedCollisions(const CollisionRect &rotating, + const CollisionRect &fixed); + +/* + * Calculate the range a box conflicts with a second box + */ +CollisionRange rotationRange(const GlyphBox &inserting, + const PlacementBox &blocker, float scale); +} + +#endif |