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Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK. http://www.xara.com/ =================================XARAHEADEREND============================ */ // colmodel.h - Camelot colour models // This defines the available colour models and storage structures for them // The actual conversions between colours in various colur models are handled // by colour contexts, which incorporate colour models plus conversion modifiers // such as gamma correction etc. See colcontx.h #ifndef INC_COLMODEL #define INC_COLMODEL #ifndef INC_FIXED24 #include "fixed24.h" #endif /******************************************************************************************** < TransType < TransparencyType Comment: Camelot supports 4 different models for transparency. The TransType enumerated type enumerates the 4 possible values: TRANSTYPE_NONE, _REFLECTIVE, _SUBTRACTIVE, _ADDITIVE. TRANSTYPE_DEFAULT is set to the default value with which all Doc/Indexed Colour objects will be initially created. (Current = 1) SeeAlso: DocColour::SetTransparencyType; IndexedColour::SetTransparencyType ********************************************************************************************/ typedef enum { TRANSTYPE_MINIMUM = 0, TRANSTYPE_NONE = 0, TRANSTYPE_DEFAULT = 1, TRANSTYPE_REFLECTIVE = 1, TRANSTYPE_SUBTRACTIVE = 2, TRANSTYPE_ADDITIVE = 3, TRANSTYPE_MAXIMUM = 3 } TransType; /******************************************************************************************** < ColourModel Comment: Enumerated type of the available colour models. There can be no more than 16 models (as references to colour models are 4-bit fields) MonoOn typedef enum { COLOURMODEL_INDEXED = 0, // 0 Private to Colour system COLOURMODEL_NOTCACHED = 0, // 0 Private to Colour system COLOURMODEL_CIET, // 1 CIE coordinate (X,Y,Z), Trans COLOURMODEL_RGBT, // 2 Red, Green, Blue, Trans COLOURMODEL_CMYK, // 3 Cyan, Magenta, Yellow, Key COLOURMODEL_HSVT, // 4 Hue, Saturation, Value, Trans COLOURMODEL_GREYT, // 5 Greyscale intensity, Trans MAX_COLOURMODELS // 6 Number of available models } ColourModel; MonoOff SeeAlso: Keyword MAX_COLOURMODELS ********************************************************************************************/ /******************************************************************************************** < MAX_COLOURMODELS Comment: This contains the number of colour models available for use in Camelot. The main use for this is internal to the colour system, for processing all colour models, using a loop of the form: MonoOn for (INT32 colourmodel = 0; colourmodel < MAX_COLOURMODELS; colourmodel++) ... Do something relating to colour model 'colourmodel'...; MonoOff SeeAlso: Keyword ColourModel ********************************************************************************************/ typedef enum { COLOURMODEL_INDEXED = 0, // 0 Reference to an indexed colour // (ONLY valid for SourceColourModel // field of immediate colours) COLOURMODEL_NOTCACHED = 0, // 0 Indicator that the cache is invalid // (ONLY valid for CacheColourModel // field of immediate colours) COLOURMODEL_CIET, // 1 CIE coordinate (X,Y,Z), Transparent COLOURMODEL_RGBT, // 2 Red, Green, Blue, Transparent COLOURMODEL_CMYK, // 3 Cyan, Magenta, Yellow, Key COLOURMODEL_HSVT, // 4 Hue, Saturation, Value, Transparent COLOURMODEL_GREYT, // 5 Greyscale intensity, Transparent COLOURMODEL_WEBRGBT, // 6 Same as COLOURMODEL_RGBT; but allows us // to (correctly) provide a new ColourContext // that can be selected within the colour editor // for hex input (but still functions internally // as a COLOURMODEL_RGBT // Insert new colour models here... MAX_COLOURMODELS // This is automagically set to the // number of available models. // You MAY: // for (cm=0; cm