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 ()
  42 {
  43 }
  44
  45 wxColour& wxColour::operator=(const RGBColor& col)
  46 {
  47     InitRGBColor(col);
  48     return *this;
  49 }
  50
  51 wxColour& wxColour::operator=(CGColorRef col)
  52 {
  53     InitCGColorRef(col);
  54     return *this;
  55 }
  56
  57 bool wxColour::IsOk() const
  58 {
  59     return m_cgColour.get() != NULL;
  60 }
  61
  62 void wxColour::InitRGBA (ChannelType r, ChannelType g, ChannelType b, ChannelType a)
  63 {
  64     m_red = r;
  65     m_green = g;
  66     m_blue = b;
  67     m_alpha = a ;
  68
  69     CGColorRef col = 0 ;
  70 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
  71     if ( CGColorCreateGenericRGB )
  72         col = CGColorCreateGenericRGB( r / 255.0, g / 255.0, b / 255.0, a / 255.0 );
  73     else
  74 #endif
  75     {
  76         CGFloat components[4] = { r / 255.0, g / 255.0, b / 255.0, a / 255.0 } ;
  77         col = CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ;
  78     }
  79     m_cgColour.reset( col );
  80 }
  81
  82 void wxColour::InitRGBColor( const RGBColor& col )
  83 {
  84     m_red = col.red >> 8;
  85     m_blue = col.blue >> 8;
  86     m_green = col.green >> 8;
  87     m_alpha = wxALPHA_OPAQUE;
  88     CGColorRef cfcol;
  89 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
  90     if ( CGColorCreateGenericRGB )
  91         cfcol = CGColorCreateGenericRGB( col.red / 65535.0, col.green / 65535.0, col.blue / 65535.0, 1.0 );
  92     else
  93 #endif
  94     {
  95         CGFloat components[4] = { col.red / 65535.0, col.green / 65535.0, col.blue / 65535.0, 1.0 } ;
  96         cfcol = CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ;
  97     }
  98     m_cgColour.reset( cfcol );
  99 }
 100
 101 void wxColour::InitCGColorRef( CGColorRef col )
 102 {
 103     m_cgColour.reset( col );
 104     size_t noComp = CGColorGetNumberOfComponents( col );
 105     if ( noComp >=3 && noComp <= 4 )
 106     {
 107         // TODO verify whether we really are on a RGB color space
 108         const CGFloat *components = CGColorGetComponents( col );
 109         m_red = (int)(components[0]*255+0.5);
 110         m_green = (int)(components[1]*255+0.5);
 111         m_blue = (int)(components[2]*255+0.5);
 112         if ( noComp == 4 )
 113             m_alpha =  (int)(components[3]*255+0.5);
 114         else
 115             m_alpha = wxALPHA_OPAQUE;
 116     }
 117     else
 118     {
 119         m_alpha = wxALPHA_OPAQUE;
 120         m_red = m_green = m_blue = 0;
 121     }
 122 }
 123
 124 bool wxColour::operator == (const wxColour& colour) const
 125 {
 126     return ( (IsOk() == colour.IsOk()) && (!IsOk() ||
 127                                            CGColorEqualToColor( m_cgColour, colour.m_cgColour ) ) );
 128 }
 129
 130