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Allow cimgui.h to be included in a plain C project

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Add `struct` keywords where required.  The messy part is the ImFont::Glyph inner
struct, which needs to match the implementation in fontAtlas.cpp when building
the library, but the namespace syntax is invalid C, so we have to use a macro to
satisfy both use cases.
This commit is contained in:
fmdkdd
2017-10-16 20:29:44 +02:00
committed by Stephan Dilly
parent 01578cb1bd
commit f12e74c20f
1 changed files with 17 additions and 10 deletions
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27
cimgui/cimgui.h
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@@ -41,6 +41,13 @@ struct ImDrawCmd;
struct ImGuiListClipper;
struct ImGuiTextFilter;
#if defined __cplusplus
#define IMFONTGLYPH ImFont::Glyph
#else
struct Glyph;
#define IMFONTGLYPH Glyph
#endif
typedef unsigned short ImDrawIdx;
typedef unsigned int ImU32;
typedef unsigned short ImWchar;
@@ -936,20 +943,20 @@ CIMGUI_API int ImFontAtlas_GetTexDesiredWidth(struct ImFontAtlas* a
CIMGUI_API void ImFontAtlas_SetTexDesiredWidth(struct ImFontAtlas* atlas, int TexDesiredWidth_);
CIMGUI_API int ImFontAtlas_GetTexGlyphPadding(struct ImFontAtlas* atlas);
CIMGUI_API void ImFontAtlas_SetTexGlyphPadding(struct ImFontAtlas* atlas, int TexGlyphPadding_);
CIMGUI_API void ImFontAtlas_GetTexUvWhitePixel(struct ImFontAtlas* atlas, ImVec2* pOut);
CIMGUI_API void ImFontAtlas_GetTexUvWhitePixel(struct ImFontAtlas* atlas, struct ImVec2* pOut);
// ImFontAtlas::Fonts;
CIMGUI_API int ImFontAtlas_Fonts_size(struct ImFontAtlas* atlas);
CIMGUI_API ImFont* ImFontAtlas_Fonts_index(struct ImFontAtlas* atlas, int index);
CIMGUI_API struct ImFont* ImFontAtlas_Fonts_index(struct ImFontAtlas* atlas, int index);
// ImFont
CIMGUI_API float ImFont_GetFontSize(const struct ImFont* font);
CIMGUI_API void ImFont_SetFontSize(struct ImFont* font, float FontSize_);
CIMGUI_API float ImFont_GetScale(const struct ImFont* font);
CIMGUI_API void ImFont_SetScale(struct ImFont* font, float Scale_);
CIMGUI_API void ImFont_GetDisplayOffset(const struct ImFont* font, ImVec2* pOut);
CIMGUI_API const struct ImFont::Glyph* ImFont_GetFallbackGlyph(const struct ImFont* font);
CIMGUI_API void ImFont_SetFallbackGlyph(struct ImFont* font, const struct ImFont::Glyph* FallbackGlyph_);
CIMGUI_API void ImFont_GetDisplayOffset(const struct ImFont* font, struct ImVec2* pOut);
CIMGUI_API const struct IMFONTGLYPH* ImFont_GetFallbackGlyph(const struct ImFont* font);
CIMGUI_API void ImFont_SetFallbackGlyph(struct ImFont* font, const struct IMFONTGLYPH* FallbackGlyph_);
CIMGUI_API float ImFont_GetFallbackXAdvance(const struct ImFont* font);
CIMGUI_API ImWchar ImFont_GetFallbackChar(const struct ImFont* font);
CIMGUI_API short ImFont_GetConfigDataCount(const struct ImFont* font);
@@ -960,17 +967,17 @@ CIMGUI_API float ImFont_GetDescent(const struct ImFont* font);
CIMGUI_API int ImFont_GetMetricsTotalSurface(const struct ImFont* font);
CIMGUI_API void ImFont_Clear(struct ImFont* font);
CIMGUI_API void ImFont_BuildLookupTable(struct ImFont* font);
CIMGUI_API const struct ImFont::Glyph* ImFont_FindGlyph(const struct ImFont* font, ImWchar c);
CIMGUI_API const struct IMFONTGLYPH* ImFont_FindGlyph(const struct ImFont* font, ImWchar c);
CIMGUI_API void ImFont_SetFallbackChar(struct ImFont* font, ImWchar c);
CIMGUI_API float ImFont_GetCharAdvance(const struct ImFont* font, ImWchar c);
CIMGUI_API bool ImFont_IsLoaded(const struct ImFont* font);
CIMGUI_API void ImFont_CalcTextSizeA(const struct ImFont* font, ImVec2* pOut, float size, float max_width, float wrap_width, const char* text_begin, const char* text_end = NULL, const char** remaining = NULL); // utf8
CIMGUI_API void ImFont_CalcTextSizeA(const struct ImFont* font, struct ImVec2* pOut, float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining); // utf8
CIMGUI_API const char* ImFont_CalcWordWrapPositionA(const struct ImFont* font, float scale, const char* text, const char* text_end, float wrap_width);
CIMGUI_API void ImFont_RenderChar(const struct ImFont* font, ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, unsigned short c);
CIMGUI_API void ImFont_RenderText(const struct ImFont* font, ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, const ImVec4* clip_rect, const char* text_begin, const char* text_end, float wrap_width = 0.0f, bool cpu_fine_clip = false);
CIMGUI_API void ImFont_RenderChar(const struct ImFont* font, struct ImDrawList* draw_list, float size, struct ImVec2 pos, ImU32 col, unsigned short c);
CIMGUI_API void ImFont_RenderText(const struct ImFont* font, struct ImDrawList* draw_list, float size, struct ImVec2 pos, ImU32 col, const struct ImVec4* clip_rect, const char* text_begin, const char* text_end, float wrap_width, bool cpu_fine_clip);
// ImFont::Glyph
CIMGUI_API int ImFont_Glyphs_size(const struct ImFont* font);
CIMGUI_API struct ImFont::Glyph* ImFont_Glyphs_index(struct ImFont* font, int index);
CIMGUI_API struct IMFONTGLYPH* ImFont_Glyphs_index(struct ImFont* font, int index);
// ImFont::IndexXAdvance
CIMGUI_API int ImFont_IndexXAdvance_size(const struct ImFont* font);
CIMGUI_API float ImFont_IndexXAdvance_index(const struct ImFont* font, int index);