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Exposed ColorConvertHSVtoRGB, ColorConvertRGBtoHSV, ColorConvertFloat4ToU32

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ocornut 2015-01-31 16:36:12 +00:00
parent 3cf47988b0
commit cb3b69c879
2 changed files with 11 additions and 12 deletions
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19
imgui.cpp
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@ -425,11 +425,6 @@ static ImU32 ImCrc32(const void* data, size_t data_size, ImU32 seed);
static bool ImLoadFileToMemory(const char* filename, const char* file_open_mode, void** out_file_data, size_t* out_file_size, size_t padding_bytes = 0);
static int ImUpperPowerOfTwo(int v) { v--; v |= v >> 1; v |= v >> 2; v |= v >> 4; v |= v >> 8; v |= v >> 16; v++; return v; }
// Helpers: Color Conversion
static ImU32 ImConvertColorFloat4ToU32(const ImVec4& in);
static void ImConvertColorRGBtoHSV(float r, float g, float b, float& out_h, float& out_s, float& out_v);
static void ImConvertColorHSVtoRGB(float h, float s, float v, float& out_r, float& out_g, float& out_b);
// Helpers: UTF-8 <> wchar
static int ImTextCharToUtf8(char* buf, size_t buf_size, unsigned int in_char); // return output UTF-8 bytes count
static ptrdiff_t ImTextStrToUtf8(char* buf, size_t buf_size, const ImWchar* in_text, const ImWchar* in_text_end); // return output UTF-8 bytes count
@ -701,7 +696,7 @@ static size_t ImFormatStringV(char* buf, size_t buf_size, const char* fmt, va_li
return (w == -1) ? buf_size : (size_t)w;
}
static ImU32 ImConvertColorFloat4ToU32(const ImVec4& in)
ImU32 ImGui::ColorConvertFloat4ToU32(const ImVec4& in)
{
ImU32 out = ((ImU32)(ImSaturate(in.x)*255.f));
out |= ((ImU32)(ImSaturate(in.y)*255.f) << 8);
@ -712,7 +707,7 @@ static ImU32 ImConvertColorFloat4ToU32(const ImVec4& in)
// Convert rgb floats ([0-1],[0-1],[0-1]) to hsv floats ([0-1],[0-1],[0-1]), from Foley & van Dam p592
// Optimized http://lolengine.net/blog/2013/01/13/fast-rgb-to-hsv
static void ImConvertColorRGBtoHSV(float r, float g, float b, float& out_h, float& out_s, float& out_v)
void ImGui::ColorConvertRGBtoHSV(float r, float g, float b, float& out_h, float& out_s, float& out_v)
{
float K = 0.f;
if (g < b)
@ -734,7 +729,7 @@ static void ImConvertColorRGBtoHSV(float r, float g, float b, float& out_h, floa
// Convert hsv floats ([0-1],[0-1],[0-1]) to rgb floats ([0-1],[0-1],[0-1]), from Foley & van Dam p593
// also http://en.wikipedia.org/wiki/HSL_and_HSV
static void ImConvertColorHSVtoRGB(float h, float s, float v, float& out_r, float& out_g, float& out_b)
void ImGui::ColorConvertHSVtoRGB(float h, float s, float v, float& out_r, float& out_g, float& out_b)
{
if (s == 0.0f)
{
@ -1085,8 +1080,8 @@ public:
float TitleBarHeight() const { return (Flags & ImGuiWindowFlags_NoTitleBar) ? 0 : FontSize() + GImGui.Style.FramePadding.y * 2.0f; }
ImGuiAabb TitleBarAabb() const { return ImGuiAabb(Pos, Pos + ImVec2(SizeFull.x, TitleBarHeight())); }
ImVec2 WindowPadding() const { return ((Flags & ImGuiWindowFlags_ChildWindow) && !(Flags & ImGuiWindowFlags_ShowBorders)) ? ImVec2(1,1) : GImGui.Style.WindowPadding; }
ImU32 Color(ImGuiCol idx, float a=1.f) const { ImVec4 c = GImGui.Style.Colors[idx]; c.w *= GImGui.Style.Alpha * a; return ImConvertColorFloat4ToU32(c); }
ImU32 Color(const ImVec4& col) const { ImVec4 c = col; c.w *= GImGui.Style.Alpha; return ImConvertColorFloat4ToU32(c); }
ImU32 Color(ImGuiCol idx, float a=1.f) const { ImVec4 c = GImGui.Style.Colors[idx]; c.w *= GImGui.Style.Alpha * a; return ImGui::ColorConvertFloat4ToU32(c); }
ImU32 Color(const ImVec4& col) const { ImVec4 c = col; c.w *= GImGui.Style.Alpha; return ImGui::ColorConvertFloat4ToU32(c); }
};
static ImGuiWindow* GetCurrentWindow()
@ -5591,7 +5586,7 @@ bool ImGui::ColorEdit4(const char* label, float col[4], bool alpha)
const ImVec4 col_display(fx, fy, fz, 1.0f);
if (edit_mode == ImGuiColorEditMode_HSV)
ImConvertColorRGBtoHSV(fx, fy, fz, fx, fy, fz);
ImGui::ColorConvertRGBtoHSV(fx, fy, fz, fx, fy, fz);
int ix = (int)(fx * 255.0f + 0.5f);
int iy = (int)(fy * 255.0f + 0.5f);
@ -5693,7 +5688,7 @@ bool ImGui::ColorEdit4(const char* label, float col[4], bool alpha)
fz = iz / 255.0f;
fw = iw / 255.0f;
if (edit_mode == 1)
ImConvertColorHSVtoRGB(fx, fy, fz, fx, fy, fz);
ImGui::ColorConvertHSVtoRGB(fx, fy, fz, fx, fy, fz);
if (value_changed)
{

4
imgui.h
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@ -323,6 +323,10 @@ namespace ImGui
IMGUI_API const char* GetStyleColName(ImGuiCol idx);
IMGUI_API ImVec2 CalcTextSize(const char* text, const char* text_end = NULL, bool hide_text_after_double_hash = false, float wrap_width = -1.0f);
IMGUI_API ImU32 ColorConvertFloat4ToU32(const ImVec4& in);
IMGUI_API void ColorConvertRGBtoHSV(float r, float g, float b, float& out_h, float& out_s, float& out_v);
IMGUI_API void ColorConvertHSVtoRGB(float h, float s, float v, float& out_r, float& out_g, float& out_b);
// Obsolete (will be removed)
IMGUI_API void GetDefaultFontData(const void** fnt_data, unsigned int* fnt_size, const void** png_data, unsigned int* png_size);