+#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);
+
+
+
projects / wxWidgets.git / blobdiff