src/cocoa/colour.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        colour.mm
   3 // Purpose:     wxColour class
   4 // Author:      David Elliott
   5 // Modified by:
   6 // Created:     2003/06/17
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2003 David Elliott
   9 // Licence:     wxWidgets licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13 #ifndef WX_PRECOMP
  14 #endif //WX_PRECOMP
  15
  16 #include "wx/gdicmn.h"
  17 #include "wx/colour.h"
  18
  19 #include "wx/cocoa/autorelease.h"
  20
  21 #import <AppKit/NSColor.h>
  22
  23 IMPLEMENT_DYNAMIC_CLASS(wxColour, wxObject)
  24
  25 void wxColour::Init()
  26 {
  27     m_cocoaNSColor = NULL;
  28     m_red =
  29     m_blue =
  30     m_green = 0;
  31 }
  32
  33 wxColour::wxColour (const wxColour& col)
  34 :   m_cocoaNSColor(col.m_cocoaNSColor)
  35 ,   m_red(col.m_red)
  36 ,   m_green(col.m_green)
  37 ,   m_blue(col.m_blue)
  38 {
  39     [m_cocoaNSColor retain];
  40 }
  41
  42 wxColour::wxColour( WX_NSColor aColor )
  43 :   m_cocoaNSColor(nil)
  44 {
  45     Set(aColor);
  46 }
  47
  48 wxColour& wxColour::operator =(const wxColour& col)
  49 {
  50     m_cocoaNSColor = col.m_cocoaNSColor;
  51     m_red = col.m_red;
  52     m_green = col.m_green;
  53     m_blue = col.m_blue;
  54     [m_cocoaNSColor retain];
  55     return *this;
  56 }
  57
  58 void wxColour::InitFromName(const wxString& name)
  59 {
  60     if ( wxTheColourDatabase )
  61     {
  62         wxColour col = wxTheColourDatabase->Find(name);
  63         if ( col.Ok() )
  64         {
  65             *this = col;
  66             return;
  67         }
  68     }
  69
  70     // leave invalid
  71     Init();
  72 }
  73
  74 wxColour::~wxColour ()
  75 {
  76     [m_cocoaNSColor release];
  77 }
  78
  79 void wxColour::Set (unsigned char r, unsigned char g, unsigned char b)
  80 {
  81     wxAutoNSAutoreleasePool pool;
  82     [m_cocoaNSColor release];
  83     m_cocoaNSColor = [[NSColor colorWithCalibratedRed:r/255.0 green:g/255.0 blue:b/255.0 alpha:1.0] retain];
  84     m_red = r;
  85     m_green = g;
  86     m_blue = b;
  87 }
  88
  89 void wxColour::Set( WX_NSColor aColor )
  90 {
  91     [aColor retain];
  92     [m_cocoaNSColor release];
  93     m_cocoaNSColor = aColor;
  94
  95     /* Make a temporary color in RGB format and get the values.  Note that
  96        unless the color was actually RGB to begin with it's likely that
  97        these will be fairly bogus. Particulary if the color is a pattern. */
  98     NSColor *rgbColor = [m_cocoaNSColor colorUsingColorSpaceName:NSCalibratedRGBColorSpace];
  99     m_red       = (wxUint8) ([rgbColor redComponent]   * 255.0);
 100     m_green = (wxUint8) ([rgbColor greenComponent] * 255.0);
 101     m_blue      = (wxUint8) ([rgbColor blueComponent]  * 255.0);
 102 }
 103