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     M_BRUSHDATA->m_stipple = stippleBitmap;
  70     if (M_BRUSHDATA->m_stipple.GetMask())
  71     {
  72                    M_BRUSHDATA->m_style = wxSTIPPLE_MASK_OPAQUE;
  73          }
  74          else
  75          {
  76                    M_BRUSHDATA->m_style = wxSTIPPLE;
  77          }
  78
  79     if (wxTheBrushList) wxTheBrushList->AddBrush( this );
  80 }
  81
  82 wxBrush::wxBrush( const wxBrush &brush )
  83 {
  84     Ref( brush );
  85
  86     if (wxTheBrushList) wxTheBrushList->AddBrush( this );
  87 }
  88
  89 wxBrush::~wxBrush()
  90 {
  91     if (wxTheBrushList) wxTheBrushList->RemoveBrush( this );
  92 }
  93
  94 wxBrush& wxBrush::operator = ( const wxBrush& brush )
  95 {
  96     if (*this == brush) return (*this);
  97     Ref( brush );
  98     return *this;
  99 }
 100
 101 bool wxBrush::operator == ( const wxBrush& brush )
 102 {
 103     return m_refData == brush.m_refData;
 104 }
 105
 106 bool wxBrush::operator != ( const wxBrush& brush )
 107 {
 108     return m_refData != brush.m_refData;
 109 }
 110
 111 bool wxBrush::Ok() const
 112 {
 113     return ((m_refData) && M_BRUSHDATA->m_colour.Ok());
 114 }
 115
 116 int wxBrush::GetStyle() const
 117 {
 118     if (m_refData == NULL)
 119     {
 120         wxFAIL_MSG( wxT("invalid brush") );
 121         return 0;
 122     }
 123
 124     return M_BRUSHDATA->m_style;
 125 }
 126
 127 wxColour &wxBrush::GetColour() const
 128 {
 129     if (m_refData == NULL)
 130     {
 131         wxFAIL_MSG( wxT("invalid brush") );
 132         return wxNullColour;
 133     }
 134
 135     return M_BRUSHDATA->m_colour;
 136 }
 137
 138 wxBitmap *wxBrush::GetStipple() const
 139 {
 140     if (m_refData == NULL)
 141     {
 142         wxFAIL_MSG( wxT("invalid brush") );
 143         return &wxNullBitmap;
 144     }
 145
 146     return &M_BRUSHDATA->m_stipple;
 147 }
 148
 149 void wxBrush::SetColour( const wxColour& col )
 150 {
 151     Unshare();
 152     M_BRUSHDATA->m_colour = col;
 153 }
 154
 155 void wxBrush::SetColour( unsigned char r, unsigned char g, unsigned char b )
 156 {
 157     Unshare();
 158     M_BRUSHDATA->m_colour.Set( r, g, b );
 159 }
 160
 161 void wxBrush::SetStyle( int style )
 162 {
 163     Unshare();
 164     M_BRUSHDATA->m_style = style;
 165 }
 166
 167 void wxBrush::SetStipple( const wxBitmap& stipple )
 168 {
 169     Unshare();
 170     M_BRUSHDATA->m_stipple = stipple;
 171     if (M_BRUSHDATA->m_stipple.GetMask())
 172     {
 173                    M_BRUSHDATA->m_style = wxSTIPPLE_MASK_OPAQUE;
 174          }
 175          else
 176          {
 177                    M_BRUSHDATA->m_style = wxSTIPPLE;
 178          }
 179 }
 180
 181 void wxBrush::Unshare()
 182 {
 183     if (!m_refData)
 184     {
 185         m_refData = new wxBrushRefData();
 186     }
 187     else
 188     {
 189         wxBrushRefData* ref = new wxBrushRefData( *(wxBrushRefData*)m_refData );
 190         UnRef();
 191         m_refData = ref;
 192     }
 193 }
 194