src/gtk/brush.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/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 }
  54
  55 wxBrush::wxBrush( const wxColour &colour, int style )
  56 {
  57     m_refData = new wxBrushRefData();
  58     M_BRUSHDATA->m_style = style;
  59     M_BRUSHDATA->m_colour = colour;
  60 }
  61
  62 wxBrush::wxBrush( const wxBitmap &stippleBitmap )
  63 {
  64     m_refData = new wxBrushRefData();
  65     M_BRUSHDATA->m_colour = *wxBLACK;
  66
  67     M_BRUSHDATA->m_stipple = stippleBitmap;
  68
  69     if (M_BRUSHDATA->m_stipple.GetMask())
  70         M_BRUSHDATA->m_style = wxSTIPPLE_MASK_OPAQUE;
  71     else
  72         M_BRUSHDATA->m_style = wxSTIPPLE;
  73 }
  74
  75 wxBrush::wxBrush( const wxBrush &brush )
  76 {
  77     Ref( brush );
  78 }
  79
  80 wxBrush::~wxBrush()
  81 {
  82 }
  83
  84 wxBrush& wxBrush::operator = ( const wxBrush& brush )
  85 {
  86     if ( m_refData != brush.m_refData )
  87         Ref( brush );
  88
  89     return *this;
  90 }
  91
  92 bool wxBrush::operator == ( const wxBrush& brush ) const
  93 {
  94     return m_refData == brush.m_refData;
  95 }
  96
  97 bool wxBrush::operator != ( const wxBrush& brush ) const
  98 {
  99     return m_refData != brush.m_refData;
 100 }
 101
 102 bool wxBrush::Ok() const
 103 {
 104     return ((m_refData) && M_BRUSHDATA->m_colour.Ok());
 105 }
 106
 107 int wxBrush::GetStyle() const
 108 {
 109     if (m_refData == NULL)
 110     {
 111         wxFAIL_MSG( wxT("invalid brush") );
 112         return 0;
 113     }
 114
 115     return M_BRUSHDATA->m_style;
 116 }
 117
 118 wxColour &wxBrush::GetColour() const
 119 {
 120     if (m_refData == NULL)
 121     {
 122         wxFAIL_MSG( wxT("invalid brush") );
 123         return wxNullColour;
 124     }
 125
 126     return M_BRUSHDATA->m_colour;
 127 }
 128
 129 wxBitmap *wxBrush::GetStipple() const
 130 {
 131     if (m_refData == NULL)
 132     {
 133         wxFAIL_MSG( wxT("invalid brush") );
 134         return &wxNullBitmap;
 135     }
 136
 137     return &M_BRUSHDATA->m_stipple;
 138 }
 139
 140 void wxBrush::SetColour( const wxColour& col )
 141 {
 142     Unshare();
 143     M_BRUSHDATA->m_colour = col;
 144 }
 145
 146 void wxBrush::SetColour( unsigned char r, unsigned char g, unsigned char b )
 147 {
 148     Unshare();
 149     M_BRUSHDATA->m_colour.Set( r, g, b );
 150 }
 151
 152 void wxBrush::SetStyle( int style )
 153 {
 154     Unshare();
 155     M_BRUSHDATA->m_style = style;
 156 }
 157
 158 void wxBrush::SetStipple( const wxBitmap& stipple )
 159 {
 160     Unshare();
 161     M_BRUSHDATA->m_stipple = stipple;
 162     if (M_BRUSHDATA->m_stipple.GetMask())
 163     {
 164         M_BRUSHDATA->m_style = wxSTIPPLE_MASK_OPAQUE;
 165     }
 166     else
 167     {
 168         M_BRUSHDATA->m_style = wxSTIPPLE;
 169     }
 170 }
 171
 172 void wxBrush::Unshare()
 173 {
 174     if (!m_refData)
 175     {
 176         m_refData = new wxBrushRefData();
 177     }
 178     else
 179     {
 180         wxBrushRefData* ref = new wxBrushRefData( *(wxBrushRefData*)m_refData );
 181         UnRef();
 182         m_refData = ref;
 183     }
 184 }
 185