wxColour is implemented using CoreGraphics

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@54877 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/osx/core/colour.cpp

@@ -0,0 +1,147 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        src/mac/carbon/colour.cpp
+// Purpose:     wxColour class
+// Author:      Stefan Csomor
+// Modified by:
+// Created:     1998-01-01
+// RCS-ID:      $Id$
+// Copyright:   (c) Stefan Csomor
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#include "wx/wxprec.h"
+
+#include "wx/colour.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/gdicmn.h"
+#endif
+
+#include "wx/osx/private.h"
+
+IMPLEMENT_DYNAMIC_CLASS(wxColour, wxObject)
+
+#if wxOSX_USE_CARBON
+wxColour::wxColour(const RGBColor& col)
+{
+    InitRGBColor(col);
+}
+#endif
+
+wxColour::wxColour(CGColorRef col)
+{
+    InitCGColorRef(col);
+}
+
+#if wxOSX_USE_CARBON
+void wxColour::GetRGBColor( RGBColor *col ) const
+{
+    col->red = (m_red << 8) + m_red;
+    col->blue = (m_blue << 8) + m_blue;
+    col->green = (m_green << 8) + m_green;
+}
+
+wxColour& wxColour::operator=(const RGBColor& col)
+{
+    InitRGBColor(col);
+    return *this;
+}
+#endif
+
+wxColour& wxColour::operator=(CGColorRef col)
+{
+    InitCGColorRef(col);
+    return *this;
+}
+
+wxColour& wxColour::operator=(const wxColour& col)
+{
+    m_red = col.m_red;
+    m_green = col.m_green;
+    m_blue = col.m_blue;
+    m_alpha = col.m_alpha;
+    m_cgColour = col.m_cgColour;
+    return *this;
+}
+
+void wxColour::InitRGBA (ChannelType r, ChannelType g, ChannelType b, ChannelType a)
+{
+    m_red = r;
+    m_green = g;
+    m_blue = b;
+    m_alpha = a ;
+
+    CGColorRef col = 0 ;
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
+    if ( CGColorCreateGenericRGB )
+        col = CGColorCreateGenericRGB( (CGFloat)(r / 255.0), (CGFloat) (g / 255.0), (CGFloat) (b / 255.0), (CGFloat) (a / 255.0) );
+    else
+#endif
+    {
+        CGFloat components[4] = { (CGFloat)(r / 255.0), (CGFloat) (g / 255.0), (CGFloat) (b / 255.0), (CGFloat) (a / 255.0) } ;    
+        col = CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ;
+    }
+    m_cgColour.reset( col );
+}
+
+#if wxOSX_USE_CARBON
+void wxColour::InitRGBColor( const RGBColor& col )
+{
+    m_red = col.red >> 8;
+    m_blue = col.blue >> 8;
+    m_green = col.green >> 8;
+    m_alpha = wxALPHA_OPAQUE;
+    CGColorRef cfcol;
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
+    if ( CGColorCreateGenericRGB )
+        cfcol = CGColorCreateGenericRGB((CGFloat)(col.red / 65535.0), (CGFloat)(col.green / 65535.0),  
+                                        (CGFloat)(col.blue / 65535.0), (CGFloat) 1.0 );
+    else
+#endif
+    {
+        CGFloat components[4] = {   (CGFloat)(col.red / 65535.0), (CGFloat)(col.green / 65535.0),  
+                                    (CGFloat)(col.blue / 65535.0), (CGFloat) 1.0 } ;    
+        cfcol = CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ;
+    }
+    m_cgColour.reset( cfcol );
+}
+#endif
+
+void wxColour::InitCGColorRef( CGColorRef col )
+{
+    m_cgColour.reset( col );
+    size_t noComp = CGColorGetNumberOfComponents( col );
+    if ( noComp >= 1 && noComp <= 4 )
+    {
+        // TODO verify whether we really are on a RGB color space
+        m_alpha = wxALPHA_OPAQUE;
+        const CGFloat *components = CGColorGetComponents( col );
+        if ( noComp >= 3 )
+        {
+            m_red = (int)(components[0]*255+0.5);
+            m_green = (int)(components[1]*255+0.5);
+            m_blue = (int)(components[2]*255+0.5);
+            if ( noComp == 4 )
+                m_alpha =  (int)(components[3]*255+0.5);
+        }
+        else
+        {
+            m_red = (int)(components[0]*255+0.5);
+            m_green = (int)(components[0]*255+0.5);
+            m_blue = (int)(components[0]*255+0.5);
+        }
+    }
+    else
+    {
+        m_alpha = wxALPHA_OPAQUE;
+        m_red = m_green = m_blue = 0;
+    }
+}
+
+bool wxColour::operator == (const wxColour& colour) const
+{
+    return ( (IsOk() == colour.IsOk()) && (!IsOk() ||
+                                           CGColorEqualToColor( m_cgColour, colour.m_cgColour ) ) );
+}
+
+