src/gtk/brush.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        brush.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifdef __GNUG__
  11 #pragma implementation "brush.h"
  12 #endif
  13
  14 #include "wx/brush.h"
  15
  16 #include <gdk/gdk.h>
  17
  18 //-----------------------------------------------------------------------------
  19 // wxBrush
  20 //-----------------------------------------------------------------------------
  21
  22 class wxBrushRefData: public wxObjectRefData
  23 {
  24 public:
  25     wxBrushRefData();
  26     wxBrushRefData( const wxBrushRefData& data );
  27
  28     int        m_style;
  29     wxBitmap   m_stipple;
  30     wxColour   m_colour;
  31 };
  32
  33 wxBrushRefData::wxBrushRefData()
  34 {
  35     m_style = 0;
  36 }
  37
  38 wxBrushRefData::wxBrushRefData( const wxBrushRefData& data )
  39 {
  40     m_style = data.m_style;
  41     m_stipple = data.m_stipple;
  42     m_colour = data.m_colour;
  43 }
  44
  45 //-----------------------------------------------------------------------------
  46
  47 #define M_BRUSHDATA ((wxBrushRefData *)m_refData)
  48
  49 IMPLEMENT_DYNAMIC_CLASS(wxBrush,wxGDIObject)
  50
  51 wxBrush::wxBrush()
  52 {
  53     if (wxTheBrushList) wxTheBrushList->AddBrush( this );
  54 }
  55
  56 wxBrush::wxBrush( const wxColour &colour, int style )
  57 {
  58     m_refData = new wxBrushRefData();
  59     M_BRUSHDATA->m_style = style;
  60     M_BRUSHDATA->m_colour = colour;
  61
  62     if (wxTheBrushList) wxTheBrushList->AddBrush( this );
  63 }
  64
  65 wxBrush::wxBrush( const wxBitmap &stippleBitmap )
  66 {
  67     m_refData = new wxBrushRefData();
  68     M_BRUSHDATA->m_colour = *wxBLACK;
  69
  70     M_BRUSHDATA->m_stipple = stippleBitmap;
  71
  72     if (M_BRUSHDATA->m_stipple.GetMask())
  73                 M_BRUSHDATA->m_style = wxSTIPPLE_MASK_OPAQUE;
  74         else
  75                 M_BRUSHDATA->m_style = wxSTIPPLE;
  76
  77     if (wxTheBrushList) wxTheBrushList->AddBrush( this );
  78 }
  79
  80 wxBrush::wxBrush( const wxBrush &brush )
  81 {
  82     Ref( brush );
  83
  84     if (wxTheBrushList) wxTheBrushList->AddBrush( this );
  85 }
  86
  87 wxBrush::~wxBrush()
  88 {
  89     if (wxTheBrushList) wxTheBrushList->RemoveBrush( this );
  90 }
  91
  92 wxBrush& wxBrush::operator = ( const wxBrush& brush )
  93 {
  94     if (*this == brush) return (*this);
  95     Ref( brush );
  96     return *this;
  97 }
  98
  99 bool wxBrush::operator == ( const wxBrush& brush ) const
 100 {
 101     return m_refData == brush.m_refData;
 102 }
 103
 104 bool wxBrush::operator != ( const wxBrush& brush ) const
 105 {
 106     return m_refData != brush.m_refData;
 107 }
 108
 109 bool wxBrush::Ok() const
 110 {
 111     return ((m_refData) && M_BRUSHDATA->m_colour.Ok());
 112 }
 113
 114 int wxBrush::GetStyle() const
 115 {
 116     if (m_refData == NULL)
 117     {
 118         wxFAIL_MSG( wxT("invalid brush") );
 119         return 0;
 120     }
 121
 122     return M_BRUSHDATA->m_style;
 123 }
 124
 125 wxColour &wxBrush::GetColour() const
 126 {
 127     if (m_refData == NULL)
 128     {
 129         wxFAIL_MSG( wxT("invalid brush") );
 130         return wxNullColour;
 131     }
 132
 133     return M_BRUSHDATA->m_colour;
 134 }
 135
 136 wxBitmap *wxBrush::GetStipple() const
 137 {
 138     if (m_refData == NULL)
 139     {
 140         wxFAIL_MSG( wxT("invalid brush") );
 141         return &wxNullBitmap;
 142     }
 143
 144     return &M_BRUSHDATA->m_stipple;
 145 }
 146
 147 void wxBrush::SetColour( const wxColour& col )
 148 {
 149     Unshare();
 150     M_BRUSHDATA->m_colour = col;
 151 }
 152
 153 void wxBrush::SetColour( unsigned char r, unsigned char g, unsigned char b )
 154 {
 155     Unshare();
 156     M_BRUSHDATA->m_colour.Set( r, g, b );
 157 }
 158
 159 void wxBrush::SetStyle( int style )
 160 {
 161     Unshare();
 162     M_BRUSHDATA->m_style = style;
 163 }
 164
 165 void wxBrush::SetStipple( const wxBitmap& stipple )
 166 {
 167     Unshare();
 168     M_BRUSHDATA->m_stipple = stipple;
 169     if (M_BRUSHDATA->m_stipple.GetMask())
 170     {
 171                    M_BRUSHDATA->m_style = wxSTIPPLE_MASK_OPAQUE;
 172          }
 173          else
 174          {
 175                    M_BRUSHDATA->m_style = wxSTIPPLE;
 176          }
 177 }
 178
 179 void wxBrush::Unshare()
 180 {
 181     if (!m_refData)
 182     {
 183         m_refData = new wxBrushRefData();
 184     }
 185     else
 186     {
 187         wxBrushRefData* ref = new wxBrushRefData( *(wxBrushRefData*)m_refData );
 188         UnRef();
 189         m_refData = ref;
 190     }
 191 }
 192