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#include "Region.hpp"
#include <wlr/util/box.h>
CRegion::CRegion() {
pixman_region32_init(&m_rRegion);
}
CRegion::CRegion(pixman_region32_t* ref) {
pixman_region32_init(&m_rRegion);
pixman_region32_copy(&m_rRegion, ref);
}
CRegion::CRegion(double x, double y, double w, double h) {
pixman_region32_init_rect(&m_rRegion, x, y, w, h);
}
CRegion::CRegion(wlr_box* box) {
pixman_region32_init_rect(&m_rRegion, box->x, box->y, box->width, box->height);
}
CRegion::CRegion(pixman_box32_t* box) {
pixman_region32_init_rect(&m_rRegion, box->x1, box->y1, box->x2 - box->x1, box->y2 - box->y1);
}
CRegion::CRegion(const CRegion& other) {
pixman_region32_init(&m_rRegion);
pixman_region32_copy(&m_rRegion, const_cast<CRegion*>(&other)->pixman());
}
CRegion::CRegion(CRegion&& other) {
pixman_region32_init(&m_rRegion);
pixman_region32_copy(&m_rRegion, other.pixman());
}
CRegion::~CRegion() {
pixman_region32_fini(&m_rRegion);
}
CRegion& CRegion::clear() {
pixman_region32_clear(&m_rRegion);
return *this;
}
CRegion& CRegion::set(const CRegion& other) {
pixman_region32_copy(&m_rRegion, const_cast<CRegion*>(&other)->pixman());
return *this;
}
CRegion& CRegion::add(const CRegion& other) {
pixman_region32_union(&m_rRegion, &m_rRegion, const_cast<CRegion*>(&other)->pixman());
return *this;
}
CRegion& CRegion::add(double x, double y, double w, double h) {
pixman_region32_union_rect(&m_rRegion, &m_rRegion, x, y, w, h);
return *this;
}
CRegion& CRegion::subtract(const CRegion& other) {
pixman_region32_subtract(&m_rRegion, &m_rRegion, const_cast<CRegion*>(&other)->pixman());
return *this;
}
CRegion& CRegion::intersect(const CRegion& other) {
pixman_region32_intersect(&m_rRegion, &m_rRegion, const_cast<CRegion*>(&other)->pixman());
return *this;
}
CRegion& CRegion::intersect(double x, double y, double w, double h) {
pixman_region32_intersect_rect(&m_rRegion, &m_rRegion, x, y, w, h);
return *this;
}
CRegion& CRegion::invert(pixman_box32_t* box) {
pixman_region32_inverse(&m_rRegion, &m_rRegion, box);
return *this;
}
CRegion& CRegion::translate(const Vector2D& vec) {
pixman_region32_translate(&m_rRegion, vec.x, vec.y);
return *this;
}
std::vector<pixman_box32_t> CRegion::getRects() const {
std::vector<pixman_box32_t> result;
int rectsNum = 0;
const auto RECTSARR = pixman_region32_rectangles(&m_rRegion, &rectsNum);
result.assign(RECTSARR, RECTSARR + rectsNum);
return result;
}
wlr_box CRegion::getExtents() {
pixman_box32_t* box = pixman_region32_extents(&m_rRegion);
return {box->x1, box->y1, box->x2 - box->x1, box->y2 - box->y1};
}
bool CRegion::containsPoint(const Vector2D& vec) {
return pixman_region32_contains_point(&m_rRegion, vec.x, vec.y, nullptr);
}
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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