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 //-----------------------------------------------------------------------------
  17 // wxBrush
  18 //-----------------------------------------------------------------------------
  19
  20 class wxBrushRefData: public wxObjectRefData
  21 {
  22   public:
  23
  24     wxBrushRefData();
  25     wxBrushRefData( const wxBrushRefData& data );
  26
  27     int        m_style;
  28     wxBitmap   m_stipple;
  29     wxColour   m_colour;
  30 };
  31
  32 wxBrushRefData::wxBrushRefData()
  33 {
  34   m_style = 0;
  35 }
  36
  37 wxBrushRefData::wxBrushRefData( const wxBrushRefData& data )
  38 {
  39   m_style = data.m_style;
  40   m_stipple = data.m_stipple;
  41   m_colour = data.m_colour;
  42 }
  43
  44 //-----------------------------------------------------------------------------
  45
  46 #define M_BRUSHDATA ((wxBrushRefData *)m_refData)
  47
  48 IMPLEMENT_DYNAMIC_CLASS(wxBrush,wxGDIObject)
  49
  50 wxBrush::wxBrush()
  51 {
  52   if (wxTheBrushList) wxTheBrushList->AddBrush( this );
  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   if (wxTheBrushList) wxTheBrushList->AddBrush( this );
  62 }
  63
  64 wxBrush::wxBrush( const wxBitmap &stippleBitmap )
  65 {
  66   m_refData = new wxBrushRefData();
  67   M_BRUSHDATA->m_style = wxSTIPPLE;
  68   M_BRUSHDATA->m_colour = *wxBLACK;
  69   M_BRUSHDATA->m_stipple = stippleBitmap;
  70
  71   if (wxTheBrushList) wxTheBrushList->AddBrush( this );
  72 }
  73
  74 wxBrush::wxBrush( const wxBrush &brush )
  75 {
  76   Ref( brush );
  77
  78   if (wxTheBrushList) wxTheBrushList->AddBrush( this );
  79 }
  80
  81 wxBrush::~wxBrush()
  82 {
  83   if (wxTheBrushList) wxTheBrushList->RemoveBrush( this );
  84 }
  85
  86 wxBrush& wxBrush::operator = ( const wxBrush& brush )
  87 {
  88   if (*this == brush) return (*this);
  89   Ref( brush );
  90   return *this;
  91 }
  92
  93 bool wxBrush::operator == ( const wxBrush& brush )
  94 {
  95   return m_refData == brush.m_refData;
  96 }
  97
  98 bool wxBrush::operator != ( const wxBrush& brush )
  99 {
 100   return m_refData != brush.m_refData;
 101 }
 102
 103 bool wxBrush::Ok() const
 104 {
 105   return ((m_refData) && M_BRUSHDATA->m_colour.Ok());
 106 }
 107
 108 int wxBrush::GetStyle() const
 109 {
 110   if (m_refData == NULL)
 111   {
 112     wxFAIL_MSG( "invalid brush" );
 113     return 0;
 114   }
 115
 116   return M_BRUSHDATA->m_style;
 117 }
 118
 119 wxColour &wxBrush::GetColour() const
 120 {
 121   if (m_refData == NULL)
 122   {
 123     wxFAIL_MSG( "invalid brush" );
 124     return wxNullColour;
 125   }
 126
 127   return M_BRUSHDATA->m_colour;
 128 }
 129
 130 wxBitmap *wxBrush::GetStipple() const
 131 {
 132   if (m_refData == NULL)
 133   {
 134     wxFAIL_MSG( "invalid brush" );
 135     return &wxNullBitmap;
 136   }
 137
 138   return &M_BRUSHDATA->m_stipple;
 139 }
 140
 141 void wxBrush::SetColour( const wxColour& col )
 142 {
 143   Unshare();
 144   M_BRUSHDATA->m_colour = col;
 145 }
 146
 147 void wxBrush::SetColour( unsigned char r, unsigned char g, unsigned char b )
 148 {
 149   Unshare();
 150   M_BRUSHDATA->m_colour.Set( r, g, b );
 151 }
 152
 153 void wxBrush::SetStyle( int style )
 154 {
 155   Unshare();
 156   M_BRUSHDATA->m_style = style;
 157 }
 158
 159 void wxBrush::SetStipple( const wxBitmap& stipple )
 160 {
 161   Unshare();
 162   M_BRUSHDATA->m_stipple = stipple;
 163 }
 164
 165 void wxBrush::Unshare()
 166 {
 167   if (!m_refData)
 168   {
 169     m_refData = new wxBrushRefData();
 170   }
 171   else
 172   {
 173     wxBrushRefData* ref = new wxBrushRefData( *(wxBrushRefData*)m_refData );
 174     UnRef();
 175     m_refData = ref;
 176   }
 177 }
 178