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

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Ben Carter
2019-12-09 15:57:24 +09:00
committed by omar
parent 2eda3585e7
commit 051ce0765e
5 changed files with 62 additions and 8 deletions
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9
imgui.h
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@ -1359,6 +1359,7 @@ struct ImGuiStyle
bool AntiAliasedLines; // Enable anti-aliasing on lines/borders. Disable if you are really tight on CPU/GPU.
bool AntiAliasedFill; // Enable anti-aliasing on filled shapes (rounded rectangles, circles, etc.)
float CurveTessellationTol; // Tessellation tolerance when using PathBezierCurveTo() without a specific number of segments. Decrease for highly tessellated curves (higher quality, more polygons), increase to reduce quality.
float CircleSegmentMaxError; // Maximum error (in pixels) allowed when using AddCircle()/AddCircleFilled() or drawing rounded corner rectangles with no explicit segment count specified. Decrease for higher quality but more geometry.
ImVec4 Colors[ImGuiCol_COUNT];
IMGUI_API ImGuiStyle();
@ -1948,10 +1949,10 @@ 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);
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 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 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);