X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e64df9bcc331d49d05a6dc7729ee08071e4c6408..0995b9dc18a7ce898c1c1be0e2790b258cab0fee:/include/wx/colour.h diff --git a/include/wx/colour.h b/include/wx/colour.h index a8d4381599..cf19ba4838 100644 --- a/include/wx/colour.h +++ b/include/wx/colour.h @@ -1,25 +1,242 @@ +///////////////////////////////////////////////////////////////////////////// +// Name: wx/colour.h +// Purpose: wxColourBase definition +// Author: Julian Smart +// Modified by: Francesco Montorsi +// Created: +// RCS-ID: $Id$ +// Copyright: Julian Smart +// Licence: wxWindows licence +///////////////////////////////////////////////////////////////////////////// + #ifndef _WX_COLOUR_H_BASE_ #define _WX_COLOUR_H_BASE_ -#if defined(__WXMSW__) -#include "wx/msw/colour.h" +#include "wx/defs.h" +#include "wx/gdiobj.h" + +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) +enum { + wxC2S_NAME = 1, // return colour name, when possible + wxC2S_CSS_SYNTAX = 2, // return colour in rgb(r,g,b) syntax + wxC2S_HTML_SYNTAX = 4 // return colour in #rrggbb syntax +}; + +const unsigned char wxALPHA_TRANSPARENT = 0; +const unsigned char wxALPHA_OPAQUE = 0xff; + +// a valid but fully transparent colour +#define wxTransparentColour wxColour(0, 0, 0, wxALPHA_TRANSPARENT) +#define wxTransparentColor wxTransparentColour + +// ---------------------------------------------------------------------------- +// wxVariant support +// ---------------------------------------------------------------------------- + +#if wxUSE_VARIANT +#include "wx/variant.h" +DECLARE_VARIANT_OBJECT_EXPORTED(wxColour,WXDLLIMPEXP_CORE) +#endif + +//----------------------------------------------------------------------------- +// wxColourBase: this class has no data members, just some functions to avoid +// code redundancy in all native wxColour implementations +//----------------------------------------------------------------------------- + +/* 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 WXDLLIMPEXP_CORE wxColourBase : public +#if wxCOLOUR_IS_GDIOBJECT + wxGDIObject +#else + wxObject +#endif +{ +public: + // type of a single colour component + typedef unsigned char ChannelType; + + wxColourBase() {} + virtual ~wxColourBase() {} + + + // Set() functions + // --------------- + + void Set(ChannelType red, + ChannelType green, + ChannelType blue, + ChannelType alpha = wxALPHA_OPAQUE) + { InitRGBA(red, green, blue, alpha); } + + // implemented in colourcmn.cpp + bool Set(const wxString &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((ChannelType)(0xFF & colRGB), + (ChannelType)(0xFF & (colRGB >> 8)), + (ChannelType)(0xFF & (colRGB >> 16))); + } + + + + // accessors + // --------- + + 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; + + void SetRGB(wxUint32 colRGB) + { + Set((ChannelType)(0xFF & colRGB), + (ChannelType)(0xFF & (colRGB >> 8)), + (ChannelType)(0xFF & (colRGB >> 16))); + } + + void SetRGBA(wxUint32 colRGBA) + { + Set((ChannelType)(0xFF & colRGBA), + (ChannelType)(0xFF & (colRGBA >> 8)), + (ChannelType)(0xFF & (colRGBA >> 16)), + (ChannelType)(0xFF & (colRGBA >> 24))); + } + + wxUint32 GetRGB() const + { return Red() | (Green() << 8) | (Blue() << 16); } + + wxUint32 GetRGBA() const + { return Red() | (Green() << 8) | (Blue() << 16) | (Alpha() << 24); } + +#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 + + // manipulation + // ------------ + + // These methods are static because they are mostly used + // within tight loops (where we don't want to instantiate wxColour's) + + static void MakeMono (unsigned char* r, unsigned char* g, unsigned char* b, bool on); + static void MakeDisabled(unsigned char* r, unsigned char* g, unsigned char* b, unsigned char brightness = 255); + static void MakeGrey (unsigned char* r, unsigned char* g, unsigned char* b); // integer version + static void MakeGrey (unsigned char* r, unsigned char* g, unsigned char* b, + double weight_r, double weight_g, double weight_b); // floating point version + static unsigned char AlphaBlend (unsigned char fg, unsigned char bg, double alpha); + static void ChangeLightness(unsigned char* r, unsigned char* g, unsigned char* b, int ialpha); + + wxColour ChangeLightness(int ialpha) const; + + // old, deprecated + // --------------- + +#if WXWIN_COMPATIBILITY_2_6 + static wxDEPRECATED( 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" +#elif defined(__WXMSW__) + #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" #elif defined(__WXGTK__) -#include "wx/gtk/colour.h" + #include "wx/gtk1/colour.h" #elif defined(__WXMGL__) -#include "wx/mgl/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/osx/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_