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#include "cru/platform/graphics/quartz/Geometry.h"
#include <cstdlib>
#include <memory>
#include "cru/base/log/Logger.h"
namespace cru::platform::graphics::quartz {
QuartzGeometry::QuartzGeometry(IGraphicsFactory* graphics_factory,
CGPathRef cg_path)
: OsxQuartzResource(graphics_factory), cg_path_(cg_path) {}
QuartzGeometry::~QuartzGeometry() { CGPathRelease(cg_path_); }
bool QuartzGeometry::FillContains(const Point& point) {
return CGPathContainsPoint(cg_path_, nullptr, CGPoint{point.x, point.y},
kCGPathFill);
}
Rect QuartzGeometry::GetBounds() {
auto bounds = CGPathGetPathBoundingBox(cg_path_);
if (CGRectIsNull(bounds)) return {};
return Convert(bounds);
}
std::unique_ptr<IGeometry> QuartzGeometry::Transform(const Matrix& matrix) {
auto cg_matrix = Convert(matrix);
auto cg_path = CGPathCreateCopyByTransformingPath(cg_path_, &cg_matrix);
return std::make_unique<QuartzGeometry>(GetGraphicsFactory(), cg_path);
}
std::unique_ptr<IGeometry> QuartzGeometry::CreateStrokeGeometry(float width) {
auto cg_path = CGPathCreateCopyByStrokingPath(
cg_path_, nullptr, width, kCGLineCapButt, kCGLineJoinMiter, 10);
return std::make_unique<QuartzGeometry>(GetGraphicsFactory(), cg_path);
}
QuartzGeometryBuilder::QuartzGeometryBuilder(IGraphicsFactory* graphics_factory)
: OsxQuartzResource(graphics_factory) {
cg_mutable_path_ = CGPathCreateMutable();
}
QuartzGeometryBuilder::~QuartzGeometryBuilder() {
CGPathRelease(cg_mutable_path_);
}
Point QuartzGeometryBuilder::GetCurrentPosition() {
return Convert(CGPathGetCurrentPoint(cg_mutable_path_));
}
void QuartzGeometryBuilder::MoveTo(const Point& point) {
CGPathMoveToPoint(cg_mutable_path_, nullptr, point.x, point.y);
}
void QuartzGeometryBuilder::LineTo(const Point& point) {
CGPathAddLineToPoint(cg_mutable_path_, nullptr, point.x, point.y);
}
void QuartzGeometryBuilder::CubicBezierTo(const Point& start_control_point,
const Point& end_control_point,
const Point& end_point) {
CGPathAddCurveToPoint(cg_mutable_path_, nullptr, start_control_point.x,
start_control_point.y, end_control_point.x,
end_control_point.y, end_point.x, end_point.y);
}
void QuartzGeometryBuilder::QuadraticBezierTo(const Point& control_point,
const Point& end_point) {
CGPathAddQuadCurveToPoint(cg_mutable_path_, nullptr, control_point.x,
control_point.y, end_point.x, end_point.y);
}
namespace {
bool Near(const Point& p1, const Point& p2) {
return std::abs(p1.x - p2.x) < 0.0001 && std::abs(p1.y - p2.y) < 0.0001;
}
} // namespace
void QuartzGeometryBuilder::ArcTo(const Point& radius, float angle,
bool is_large_arc, bool is_clockwise,
const Point& end_point) {
auto pos = GetCurrentPosition();
auto info = CalculateArcInfo(pos, radius, angle, is_large_arc, is_clockwise,
end_point);
CruLogDebug(
kLogTag,
"Arc to {}, radius {}, angle {}, is_large_arc {}, is_clockwise {}, "
"end_point {}. Calculated, center {}, start_angle {}, end_angle {}.",
pos, radius, angle, is_large_arc, is_clockwise, end_point, info.center,
info.start_angle, info.end_angle);
auto matrix = Matrix::Scale(radius.x, radius.y);
CGAffineTransform transform = Convert(matrix);
CGPathAddArc(cg_mutable_path_, &transform, info.center.x, info.center.y, 1,
info.start_angle, info.end_angle, true);
assert(Near(GetCurrentPosition(), end_point));
}
void QuartzGeometryBuilder::CloseFigure(bool close) {
if (close) CGPathCloseSubpath(cg_mutable_path_);
}
std::unique_ptr<IGeometry> QuartzGeometryBuilder::Build() {
return std::make_unique<QuartzGeometry>(GetGraphicsFactory(),
CGPathCreateCopy(cg_mutable_path_));
}
} // namespace cru::platform::graphics::quartz
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