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ImDrawList::PathArcToAdaptive - path arc that automatically adjust precision according to arc radius #3491

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ImDrawList::PathArcToAdaptive - path arc that automatically adjust precision according to arc radius #3491

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42923c6
Add version of PathArcTo() and PathArcToFast() with adaptive renderin…
thedmd Feb 13, 2021
cfa7862
**DO NOT MERGE** Dirty demo/benchmark
thedmd Feb 13, 2021
d836189
Replace PathArcTo() and PathArcToFast() with adaptive versions.
thedmd Mar 2, 2021
915f9f7
**DO NOT MERGE** Dirty demo/benchmark - Redirect calls to PathArcTo()…
thedmd Mar 2, 2021
8701404
Convert to full circle.
thedmd Mar 10, 2021
98feaff
Convert to quarter of the circle.
thedmd Mar 10, 2021
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7 changes: 5 additions & 2 deletions imgui.h
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Expand Up @@ -2418,8 +2418,8 @@ struct ImDrawList
inline void PathLineToMergeDuplicate(const ImVec2& pos) { if (_Path.Size == 0 || memcmp(&_Path.Data[_Path.Size - 1], &pos, 8) != 0) _Path.push_back(pos); }
inline void PathFillConvex(ImU32 col) { AddConvexPolyFilled(_Path.Data, _Path.Size, col); _Path.Size = 0; } // Note: Anti-aliased filling requires points to be in clockwise order.
inline void PathStroke(ImU32 col, bool closed, float thickness = 1.0f) { AddPolyline(_Path.Data, _Path.Size, col, closed, thickness); _Path.Size = 0; }
IMGUI_API void PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments = 10);
IMGUI_API void PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12); // Use precomputed angles for a 12 steps circle
IMGUI_API void PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments = 0);
IMGUI_API void PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12); // Use precomputed angles for a 12 steps circle
IMGUI_API void PathBezierCubicCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments = 0); // Cubic Bezier (4 control points)
IMGUI_API void PathBezierQuadraticCurveTo(const ImVec2& p2, const ImVec2& p3, int num_segments = 0); // Quadratic Bezier (3 control points)
IMGUI_API void PathRect(const ImVec2& rect_min, const ImVec2& rect_max, float rounding = 0.0f, ImDrawCornerFlags rounding_corners = ImDrawCornerFlags_All);
Expand Down Expand Up @@ -2464,6 +2464,9 @@ struct ImDrawList
IMGUI_API void _OnChangedTextureID();
IMGUI_API void _OnChangedVtxOffset();
IMGUI_API int _CalcCircleAutoSegmentCount(float radius) const;
IMGUI_API int _CalcArcAutoSegmentStepSize(float radius) const;
IMGUI_API void _PathArcToFastEx(const ImVec2& center, float radius, int a_min_sample, int a_max_sample, int a_step);
IMGUI_API void _PathArcToN(const ImVec2& center, float radius, float a_min, float a_max, int num_segments);
};

// All draw data to render a Dear ImGui frame
Expand Down