X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/fa8bc37bc20613e53136f26882aee31e11bef131..a69476643b44e06bab1090a92a29ce4faeb5402d:/include/wx/colour.h?ds=sidebyside diff --git a/include/wx/colour.h b/include/wx/colour.h index 98a8c29891..c6f0e91f23 100644 --- a/include/wx/colour.h +++ b/include/wx/colour.h @@ -16,16 +16,23 @@ #include "wx/gdiobj.h" -// the standard wxColour constructors; -// this macro avoids to repeat these lines across all colour.h files, since -// Set() is a virtual function and thus cannot be called by wxColourBase -// constructors -#define DEFINE_STD_WXCOLOUR_CONSTRUCTORS \ - wxColour( unsigned char red, unsigned char green, unsigned char blue, unsigned char alpha = 255 ) \ - { Set(red, green, blue, alpha); } \ - wxColour( unsigned long colRGB ) { Set(colRGB); } \ - wxColour(const wxString &colourName) { Set(colourName); } \ - wxColour(const wxChar *colourName) { Set(colourName); } +class WXDLLIMPEXP_FWD_CORE wxColour; + +// A macro to define the standard wxColour constructors: +// +// It avoids the need to repeat these lines across all colour.h files, since +// Set() is a virtual function and thus cannot be called by wxColourBase ctors +#define DEFINE_STD_WXCOLOUR_CONSTRUCTORS \ + wxColour() { Init(); } \ + wxColour(ChannelType red, \ + ChannelType green, \ + ChannelType blue, \ + ChannelType alpha = wxALPHA_OPAQUE) \ + { Init(); Set(red, green, blue, alpha); } \ + wxColour(unsigned long colRGB) { Init(); Set(colRGB ); } \ + wxColour(const wxString& colourName) { Init(); Set(colourName); } \ + wxColour(const char *colourName) { Init(); Set(colourName); } \ + wxColour(const wchar_t *colourName) { Init(); Set(colourName); } // flags for wxColour -> wxString conversion (see wxColour::GetAsString) @@ -34,29 +41,44 @@ #define wxC2S_HTML_SYNTAX 4 // return colour in #rrggbb syntax -class WXDLLEXPORT wxColour; +const unsigned char wxALPHA_TRANSPARENT = 0; +const unsigned char wxALPHA_OPAQUE = 0xff; +// ---------------------------------------------------------------------------- +// wxVariant support +// ---------------------------------------------------------------------------- + +#if wxUSE_VARIANT +#include "wx/variant.h" +DECLARE_VARIANT_OBJECT_EXPORTED(wxColour,WXDLLEXPORT) +#endif //----------------------------------------------------------------------------- // wxColourBase: this class has no data members, just some functions to avoid // code redundancy in all native wxColour implementations //----------------------------------------------------------------------------- -class WXDLLEXPORT wxColourBase : public wxGDIObject -{ -protected: - - virtual void InitWith(unsigned char red, unsigned char green, unsigned char blue) = 0; - - // this will be overridden in alpha supporting classes - virtual void InitWith(unsigned char red, unsigned char green, unsigned char blue, unsigned char alpha) - { - InitWith( red, green, blue ) ; - } - - virtual bool FromString(const wxChar *); +/* Transition from wxGDIObject to wxObject is incomplete. If your port does + not need the wxGDIObject machinery to handle colors, please add it to the + list of ports which do not need it. + */ +#if defined( __WXMAC__ ) || defined( __WXMSW__ ) || defined( __WXPM__ ) || defined( __WXCOCOA__ ) +#define wxCOLOUR_IS_GDIOBJECT 0 +#else +#define wxCOLOUR_IS_GDIOBJECT 1 +#endif +class WXDLLEXPORT wxColourBase : public +#if wxCOLOUR_IS_GDIOBJECT + wxGDIObject +#else + wxObject +#endif +{ public: + // type of a single colour component + typedef unsigned char ChannelType; + wxColourBase() {} virtual ~wxColourBase() {} @@ -64,23 +86,23 @@ public: // Set() functions // --------------- - void Set(unsigned char red, unsigned char green, unsigned char blue, unsigned char alpha = 255) - { InitWith(red,green,blue, alpha); } + void Set(ChannelType red, + ChannelType green, + ChannelType blue, + ChannelType alpha = wxALPHA_OPAQUE) + { InitRGBA(red,green,blue, alpha); } // implemented in colourcmn.cpp - bool Set(const wxChar *str) - { return FromString(str); } - bool Set(const wxString &str) - { return Set((const wxChar *)str); } + { return FromString(str); } void Set(unsigned long colRGB) { // we don't need to know sizeof(long) here because we assume that the three // least significant bytes contain the R, G and B values - Set((unsigned char)colRGB, - (unsigned char)(colRGB >> 8), - (unsigned char)(colRGB >> 16)); + Set((ChannelType)(0xFF & colRGB), + (ChannelType)(0xFF & (colRGB >> 8)), + (ChannelType)(0xFF & (colRGB >> 16))); } @@ -88,18 +110,22 @@ public: // accessors // --------- - virtual bool Ok() const = 0; - - virtual unsigned char Red() const = 0; - virtual unsigned char Green() const = 0; - virtual unsigned char Blue() const = 0; - virtual unsigned char Alpha() const - { return 255 ; } + virtual ChannelType Red() const = 0; + virtual ChannelType Green() const = 0; + virtual ChannelType Blue() const = 0; + virtual ChannelType Alpha() const + { return wxALPHA_OPAQUE ; } // implemented in colourcmn.cpp virtual wxString GetAsString(long flags = wxC2S_NAME | wxC2S_CSS_SYNTAX) const; - +#if !wxCOLOUR_IS_GDIOBJECT + virtual bool IsOk() const= 0; + + // older version, for backwards compatibility only (but not deprecated + // because it's still widely used) + bool Ok() const { return IsOk(); } +#endif // old, deprecated // --------------- @@ -108,33 +134,68 @@ public: wxDEPRECATED( static wxColour CreateByName(const wxString& name) ); wxDEPRECATED( void InitFromName(const wxString& col) ); #endif + +protected: + // Some ports need Init() and while we don't, provide a stub so that the + // ports which don't need it are not forced to define it + void Init() { } + + virtual void + InitRGBA(ChannelType r, ChannelType g, ChannelType b, ChannelType a) = 0; + + virtual bool FromString(const wxString& s); + +#if wxCOLOUR_IS_GDIOBJECT + // wxColour doesn't use reference counted data (at least not in all ports) + // so provide stubs for the functions which need to be defined if we do use + // them + virtual wxGDIRefData *CreateGDIRefData() const + { + wxFAIL_MSG( "must be overridden if used" ); + + return NULL; + } + + virtual wxGDIRefData *CloneGDIRefData(const wxGDIRefData *WXUNUSED(data)) const + { + wxFAIL_MSG( "must be overridden if used" ); + + return NULL; + } +#endif }; +// wxColour <-> wxString utilities, used by wxConfig, defined in colourcmn.cpp +WXDLLIMPEXP_CORE wxString wxToString(const wxColourBase& col); +WXDLLIMPEXP_CORE bool wxFromString(const wxString& str, wxColourBase* col); + + #if defined(__WXPALMOS__) -#include "wx/generic/colour.h" + #include "wx/generic/colour.h" #elif defined(__WXMSW__) -#include "wx/msw/colour.h" + #include "wx/msw/colour.h" #elif defined(__WXMOTIF__) -#include "wx/motif/colour.h" + #include "wx/motif/colour.h" #elif defined(__WXGTK20__) -#include "wx/gtk/colour.h" + #include "wx/gtk/colour.h" #elif defined(__WXGTK__) -#include "wx/gtk1/colour.h" + #include "wx/gtk1/colour.h" #elif defined(__WXMGL__) -#include "wx/generic/colour.h" + #include "wx/generic/colour.h" +#elif defined(__WXDFB__) + #include "wx/generic/colour.h" #elif defined(__WXX11__) -#include "wx/x11/colour.h" + #include "wx/x11/colour.h" #elif defined(__WXMAC__) -#include "wx/mac/colour.h" + #include "wx/mac/colour.h" #elif defined(__WXCOCOA__) -#include "wx/cocoa/colour.h" + #include "wx/cocoa/colour.h" #elif defined(__WXPM__) -#include "wx/os2/colour.h" + #include "wx/os2/colour.h" #endif #define wxColor wxColour -#endif - // _WX_COLOUR_H_BASE_ +#endif // _WX_COLOUR_H_BASE_