X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1be7a35c5ec31b6cfcab9d969c7969586441a945..f8b1df0b15f843b8f47efb9bee38f1de0fa95020:/include/wx/colour.h

diff --git a/include/wx/colour.h b/include/wx/colour.h
index 7daa7cf935..b0296e860e 100644
--- a/include/wx/colour.h
+++ b/include/wx/colour.h
@@ -1,8 +1,8 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        wx/colour.h
-// Purpose:     Includes platform-specific wxColour file
+// Purpose:     wxColourBase definition
 // Author:      Julian Smart
-// Modified by:
+// Modified by: Francesco Montorsi
 // Created:
 // RCS-ID:      $Id$
 // Copyright:   Julian Smart
@@ -12,29 +12,186 @@
 #ifndef _WX_COLOUR_H_BASE_
 #define _WX_COLOUR_H_BASE_
 
+#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)
+#define wxC2S_NAME              1   // return colour name, when possible
+#define wxC2S_CSS_SYNTAX        2   // return colour in rgb(r,g,b) syntax
+#define wxC2S_HTML_SYNTAX       4   // return colour in #rrggbb syntax
+
+
+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
+//-----------------------------------------------------------------------------
+
+#if defined( __WXMAC__ ) || defined( __WXMSW__ )
+#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() {}
+
+
+    // 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;
+
+#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
+    // ---------------
+
+#if WXWIN_COMPATIBILITY_2_6
+    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/palmos/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/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/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_