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( const wxColour& col )
  30 {
  31     m_red = col.m_red;
  32     m_green = col.m_green;
  33     m_blue = col.m_blue;
  34     m_alpha = col.m_alpha;
  35     m_cgColour = col.m_cgColour;
  36 }
  37
  38 wxColour::wxColour(CGColorRef col)
  39 {
  40     InitCGColorRef(col);
  41 }
  42
  43 void wxColour::GetRGBColor( RGBColor *col ) const
  44 {
  45     col->red = (m_red << 8) + m_red;
  46     col->blue = (m_blue << 8) + m_blue;
  47     col->green = (m_green << 8) + m_green;
  48 }
  49
  50 wxColour::~wxColour ()
  51 {
  52 }
  53
  54 wxColour& wxColour::operator=(const RGBColor& col)
  55 {
  56     InitRGBColor(col);
  57     return *this;
  58 }
  59
  60 wxColour& wxColour::operator=(CGColorRef col)
  61 {
  62     InitCGColorRef(col);
  63     return *this;
  64 }
  65
  66 wxColour& wxColour::operator=(const wxColour& col)
  67 {
  68     m_red = col.m_red;
  69     m_green = col.m_green;
  70     m_blue = col.m_blue;
  71     m_alpha = col.m_alpha;
  72     m_cgColour = col.m_cgColour;
  73     return *this;
  74 }
  75
  76 void wxColour::InitRGBA (ChannelType r, ChannelType g, ChannelType b, ChannelType a)
  77 {
  78     m_red = r;
  79     m_green = g;
  80     m_blue = b;
  81     m_alpha = a ;
  82
  83     CGColorRef col = 0 ;
  84 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
  85     if ( CGColorCreateGenericRGB )
  86         col = CGColorCreateGenericRGB( r / 255.0, g / 255.0, b / 255.0, a / 255.0 );
  87     else
  88 #endif
  89     {
  90         CGFloat components[4] = { r / 255.0, g / 255.0, b / 255.0, a / 255.0 } ;
  91         col = CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ;
  92     }
  93     m_cgColour.reset( col );
  94 }
  95
  96 void wxColour::InitRGBColor( const RGBColor& col )
  97 {
  98     m_red = col.red >> 8;
  99     m_blue = col.blue >> 8;
 100     m_green = col.green >> 8;
 101     m_alpha = wxALPHA_OPAQUE;
 102     CGColorRef cfcol;
 103 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
 104     if ( CGColorCreateGenericRGB )
 105         cfcol = CGColorCreateGenericRGB( col.red / 65535.0, col.green / 65535.0, col.blue / 65535.0, 1.0 );
 106     else
 107 #endif
 108     {
 109         CGFloat components[4] = { col.red / 65535.0, col.green / 65535.0, col.blue / 65535.0, 1.0 } ;
 110         cfcol = CGColorCreate( wxMacGetGenericRGBColorSpace() , components ) ;
 111     }
 112     m_cgColour.reset( cfcol );
 113 }
 114
 115 void wxColour::InitCGColorRef( CGColorRef col )
 116 {
 117     m_cgColour.reset( col );
 118     size_t noComp = CGColorGetNumberOfComponents( col );
 119     if ( noComp >=3 && noComp <= 4 )
 120     {
 121         // TODO verify whether we really are on a RGB color space
 122         const CGFloat *components = CGColorGetComponents( col );
 123         m_red = (int)(components[0]*255+0.5);
 124         m_green = (int)(components[1]*255+0.5);
 125         m_blue = (int)(components[2]*255+0.5);
 126         if ( noComp == 4 )
 127             m_alpha =  (int)(components[3]*255+0.5);
 128         else
 129             m_alpha = wxALPHA_OPAQUE;
 130     }
 131     else
 132     {
 133         m_alpha = wxALPHA_OPAQUE;
 134         m_red = m_green = m_blue = 0;
 135     }
 136 }
 137
 138 bool wxColour::operator == (const wxColour& colour) const
 139 {
 140     return ( (IsOk() == colour.IsOk()) && (!IsOk() ||
 141                                            CGColorEqualToColor( m_cgColour, colour.m_cgColour ) ) );
 142 }
 143
 144