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LibGfx: Implement cubic bezier curves by splitting them to subcurves

This makes them significantly more nicer-looking, and fixes a FIXME :^)
This commit is contained in:
Ali Mohammad Pur 2021-09-17 18:42:30 +04:30 committed by Ali Mohammad Pur
parent 02d949cfb6
commit 433725fef2
6 changed files with 145 additions and 12 deletions

View file

@ -54,6 +54,7 @@ public:
void set_pixel(int x, int y, Color color) { set_pixel({ x, y }, color); }
void draw_line(IntPoint const&, IntPoint const&, Color, int thickness = 1, LineStyle style = LineStyle::Solid, Color alternate_color = Color::Transparent);
void draw_quadratic_bezier_curve(IntPoint const& control_point, IntPoint const&, IntPoint const&, Color, int thickness = 1, LineStyle style = LineStyle::Solid);
void draw_cubic_bezier_curve(IntPoint const& control_point_0, IntPoint const& control_point_1, IntPoint const&, IntPoint const&, Color, int thickness = 1, LineStyle style = LineStyle::Solid);
void draw_elliptical_arc(IntPoint const& p1, IntPoint const& p2, IntPoint const& center, FloatPoint const& radii, float x_axis_rotation, float theta_1, float theta_delta, Color, int thickness = 1, LineStyle style = LineStyle::Solid);
void blit(IntPoint const&, Gfx::Bitmap const&, IntRect const& src_rect, float opacity = 1.0f, bool apply_alpha = true);
void blit_dimmed(IntPoint const&, Gfx::Bitmap const&, IntRect const& src_rect);
@ -88,6 +89,9 @@ public:
static void for_each_line_segment_on_bezier_curve(FloatPoint const& control_point, FloatPoint const& p1, FloatPoint const& p2, Function<void(FloatPoint const&, FloatPoint const&)>&);
static void for_each_line_segment_on_bezier_curve(FloatPoint const& control_point, FloatPoint const& p1, FloatPoint const& p2, Function<void(FloatPoint const&, FloatPoint const&)>&&);
static void for_each_line_segment_on_cubic_bezier_curve(FloatPoint const& control_point_0, FloatPoint const& control_point_1, FloatPoint const& p1, FloatPoint const& p2, Function<void(FloatPoint const&, FloatPoint const&)>&);
static void for_each_line_segment_on_cubic_bezier_curve(FloatPoint const& control_point_0, FloatPoint const& control_point_1, FloatPoint const& p1, FloatPoint const& p2, Function<void(FloatPoint const&, FloatPoint const&)>&&);
static void for_each_line_segment_on_elliptical_arc(FloatPoint const& p1, FloatPoint const& p2, FloatPoint const& center, FloatPoint const radii, float x_axis_rotation, float theta_1, float theta_delta, Function<void(FloatPoint const&, FloatPoint const&)>&);
static void for_each_line_segment_on_elliptical_arc(FloatPoint const& p1, FloatPoint const& p2, FloatPoint const& center, FloatPoint const radii, float x_axis_rotation, float theta_1, float theta_delta, Function<void(FloatPoint const&, FloatPoint const&)>&&);