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Add gfx::painter::circle() with different center & border colors

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This commit is contained in:
Nikita Lisitsa 2025-05-14 22:54:05 +03:00
parent 1d8ba361fc
commit 132a521b6a
2 changed files with 8 additions and 2 deletions
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1
libs/gfx/include/psemek/gfx/painter.hpp
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@ -56,6 +56,7 @@ namespace psemek::gfx
void triangle(math::point<float, 2> const & p0, math::point<float, 2> const & p1, math::point<float, 2> const & p2, color const & c0, color const & c1, color const & c2);
void rect(math::box<float, 2> const & box, color const & c);
void circle(math::point<float, 2> const & center, float radius, color const & c, int quality = 24);
void circle(math::point<float, 2> const & center, float radius, color const & c0, color const & c1, int quality = 24);
void line(math::point<float, 2> const & p0, math::point<float, 2> const & p1, float width, color const & c, bool smooth = true);
void line(math::point<float, 2> const & p0, math::point<float, 2> const & p1, float w0, float w1, color const & c0, color const & c1, bool smooth = true);
void besier(math::point<float, 2> const & p0, math::point<float, 2> const & p1, math::point<float, 2> const & p2, float width, color const & c, int quality = 8, bool smooth = true);

9
libs/gfx/source/painter.cpp
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@ -216,14 +216,19 @@ namespace psemek::gfx
}
void painter::circle(math::point<float, 2> const & p, float r, color const & c, int quality)
{
circle(p, r, c, c, quality);
}
void painter::circle(math::point<float, 2> const & p, float r, color const & c0, color const & c1, int quality)
{
std::uint32_t const base = impl().vertices.size();
impl().vertices.push_back({{p[0], p[1], 0.f}, c});
impl().vertices.push_back({{p[0], p[1], 0.f}, c0});
for (int i = 0; i < quality; ++i)
{
float const a = (math::pi * 2.f * i) / quality;
impl().vertices.push_back({{p[0] + r * std::cos(a), p[1] + r * std::sin(a), 0.f}, c});
impl().vertices.push_back({{p[0] + r * std::cos(a), p[1] + r * std::sin(a), 0.f}, c1});
}
for (int i = 0; i < quality; ++i)