src/mac/carbon/colour.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mac/carbon/colour.cpp
   3 // Purpose:     wxColour class
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/colour.h"
  15
  16 #ifndef WX_PRECOMP
  17     #include "wx/gdicmn.h"
  18 #endif
  19
  20 #include "wx/mac/private.h"
  21
  22 IMPLEMENT_DYNAMIC_CLASS(wxColour, wxObject)
  23
  24 wxColour::wxColour(const RGBColor& col)
  25 {
  26     InitRGBColor(col);
  27 }
  28
  29 wxColour::wxColour(CGColorRef col)
  30 {
  31     InitCGColorRef(col);
  32 }
  33
  34 void wxColour::GetRGBColor( RGBColor *col ) const
  35 {
  36     col->red = (m_red << 8) + m_red;
  37     col->blue = (m_blue << 8) + m_blue;
  38     col->green = (m_green << 8) + m_green;
  39 }
  40
  41 wxColour& wxColour::operator=(const RGBColor& col)
  42 {
  43     InitRGBColor(col);
  44     return *this;
  45 }
  46
  47 wxColour& wxColour::operator=(CGColorRef col)
  48 {
  49     InitCGColorRef(col);
  50     return *this;
  51 }
  52
  53 wxColour& wxColour::operator=(const wxColour& col)
  54 {
  55     m_red = col.m_red;
  56     m_green = col.m_green;
  57     m_blue = col.m_blue;
  58     m_alpha = col.m_alpha;
  59     m_cgColour = col.m_cgColour;
  60     return *this;
  61 }
  62
  63 void wxColour::InitRGBA (ChannelType r, ChannelType g, ChannelType b, ChannelType a)
  64 {
  65     m_red = r;
  66     m_green = g;
  67     m_blue = b;
  68     m_alpha = a ;
  69
  70     CGColorRef col = 0 ;
  71 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
  72     if ( CGColorCreateGenericRGB )
  73         col = CGColorCreateGenericRGB( (CGFloat)(r / 255.0), (CGFloat) (g / 255.0), (CGFloat) (b / 255.0), (CGFloat) (a / 255.0) );
  74     else
  75 #endif
  76     {
  77         CGFloat components[4] = { (CGFloat)(r / 255.0), (CGFloat) (g / 255.0), (CGFloat) (b / 255.0), (CGFloat) (a / 255.0) } ;
  78         col = CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ;
  79     }
  80     m_cgColour.reset( col );
  81 }
  82
  83 void wxColour::InitRGBColor( const RGBColor& col )
  84 {
  85     m_red = col.red >> 8;
  86     m_blue = col.blue >> 8;
  87     m_green = col.green >> 8;
  88     m_alpha = wxALPHA_OPAQUE;
  89     CGColorRef cfcol;
  90 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
  91     if ( CGColorCreateGenericRGB )
  92         cfcol = CGColorCreateGenericRGB((CGFloat)(col.red / 65535.0), (CGFloat)(col.green / 65535.0),
  93                                         (CGFloat)(col.blue / 65535.0), (CGFloat) 1.0 );
  94     else
  95 #endif
  96     {
  97         CGFloat components[4] = {   (CGFloat)(col.red / 65535.0), (CGFloat)(col.green / 65535.0),
  98                                     (CGFloat)(col.blue / 65535.0), (CGFloat) 1.0 } ;
  99         cfcol = CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ;
 100     }
 101     m_cgColour.reset( cfcol );
 102 }
 103
 104 void wxColour::InitCGColorRef( CGColorRef col )
 105 {
 106     m_cgColour.reset( col );
 107     size_t noComp = CGColorGetNumberOfComponents( col );
 108     if ( noComp >= 1 && noComp <= 4 )
 109     {
 110         // TODO verify whether we really are on a RGB color space
 111         m_alpha = wxALPHA_OPAQUE;
 112         const CGFloat *components = CGColorGetComponents( col );
 113         if ( noComp >= 3 )
 114         {
 115             m_red = (int)(components[0]*255+0.5);
 116             m_green = (int)(components[1]*255+0.5);
 117             m_blue = (int)(components[2]*255+0.5);
 118             if ( noComp == 4 )
 119                 m_alpha =  (int)(components[3]*255+0.5);
 120         }
 121         else
 122         {
 123             m_red = (int)(components[0]*255+0.5);
 124             m_green = (int)(components[0]*255+0.5);
 125             m_blue = (int)(components[0]*255+0.5);
 126         }
 127     }
 128     else
 129     {
 130         m_alpha = wxALPHA_OPAQUE;
 131         m_red = m_green = m_blue = 0;
 132     }
 133 }
 134
 135 bool wxColour::operator == (const wxColour& colour) const
 136 {
 137     return ( (IsOk() == colour.IsOk()) && (!IsOk() ||
 138                                            CGColorEqualToColor( m_cgColour, colour.m_cgColour ) ) );
 139 }
 140
 141