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