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AddCircle, AddCircleFilled: Add auto-calculation of circle segment counts (amends)

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Tweak default max error value, Changelog, comments, path-fast for 12 segments circles, made LUT store ImU8
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omar
2020-01-08 00:10:18 +01:00
parent 051ce0765e
commit 5363af7f47
6 changed files with 89 additions and 61 deletions
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11
imgui.h
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@@ -1941,6 +1941,9 @@ struct ImDrawList
// Primitives
// - For rectangular primitives, "p_min" and "p_max" represent the upper-left and lower-right corners.
// - For circle primitives, use "num_segments == 0" to automatically calculate tessellation (preferred).
// In future versions we will use textures to provide cheaper and higher-quality circles.
// Use AddNgon() and AddNgonFilled() functions if you need to guaranteed a specific number of sides.
IMGUI_API void AddLine(const ImVec2& p1, const ImVec2& p2, ImU32 col, float thickness = 1.0f);
IMGUI_API void AddRect(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding = 0.0f, ImDrawCornerFlags rounding_corners = ImDrawCornerFlags_All, float thickness = 1.0f); // a: upper-left, b: lower-right (== upper-left + size), rounding_corners_flags: 4 bits corresponding to which corner to round
IMGUI_API void AddRectFilled(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding = 0.0f, ImDrawCornerFlags rounding_corners = ImDrawCornerFlags_All); // a: upper-left, b: lower-right (== upper-left + size)
@@ -1949,10 +1952,10 @@ struct ImDrawList
IMGUI_API void AddQuadFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col);
IMGUI_API void AddTriangle(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness = 1.0f);
IMGUI_API void AddTriangleFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col);
IMGUI_API void AddCircle(const ImVec2& center, float radius, ImU32 col, int num_segments = 12, float thickness = 1.0f); // Draw a circle - use num_segments <= 0 to automatically calculate tessellation (preferred). Use AddNgon() instead if you need a specific segment count.
IMGUI_API void AddCircleFilled(const ImVec2& center, float radius, ImU32 col, int num_segments = 12); // Draw a filled circle - use num_segments <= 0 to automatically calculate tessellation (preferred). Use AddNgonFilled() instead if you need a specific segment count.
IMGUI_API void AddNgon(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness = 1.0f); // Draw an n-gon with a specific number of sides. Use AddCircle() instead if you want an actual circle and don't care about the exact side count.
IMGUI_API void AddNgonFilled(const ImVec2& center, float radius, ImU32 col, int num_segments); // Draw a filled n-gon with a specific number of sides. Use AddCircleFilled() instead if you want an actual circle and don't care about the exact side count.
IMGUI_API void AddCircle(const ImVec2& center, float radius, ImU32 col, int num_segments = 12, float thickness = 1.0f);
IMGUI_API void AddCircleFilled(const ImVec2& center, float radius, ImU32 col, int num_segments = 12);
IMGUI_API void AddNgon(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness = 1.0f);
IMGUI_API void AddNgonFilled(const ImVec2& center, float radius, ImU32 col, int num_segments);
IMGUI_API void AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end = NULL);
IMGUI_API void AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end = NULL, float wrap_width = 0.0f, const ImVec4* cpu_fine_clip_rect = NULL);
IMGUI_API void AddPolyline(const ImVec2* points, int num_points, ImU32 col, bool closed, float thickness);