src/gtk/brush.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        brush.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Created:     01/02/97
   6 // Id:
   7 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "brush.h"
  13 #endif
  14
  15 #include "wx/brush.h"
  16
  17 //-----------------------------------------------------------------------------
  18 // wxBrush
  19 //-----------------------------------------------------------------------------
  20
  21 class wxBrushRefData: public wxObjectRefData
  22 {
  23   public:
  24
  25     wxBrushRefData(void);
  26     wxBrushRefData( const wxBrushRefData& data );
  27
  28     int        m_style;
  29     wxBitmap   m_stipple;
  30     wxColour   m_colour;
  31 };
  32
  33 wxBrushRefData::wxBrushRefData(void)
  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(void)
  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 wxString &colourName, int style )
  66 {
  67   m_refData = new wxBrushRefData();
  68   M_BRUSHDATA->m_style = style;
  69   M_BRUSHDATA->m_colour = colourName;
  70
  71   if (wxTheBrushList) wxTheBrushList->AddBrush( this );
  72 }
  73
  74 wxBrush::wxBrush( const wxBitmap &stippleBitmap )
  75 {
  76   m_refData = new wxBrushRefData();
  77   M_BRUSHDATA->m_style = wxSTIPPLE;
  78   M_BRUSHDATA->m_colour = *wxBLACK;
  79   M_BRUSHDATA->m_stipple = stippleBitmap;
  80
  81   if (wxTheBrushList) wxTheBrushList->AddBrush( this );
  82 }
  83
  84 wxBrush::wxBrush( const wxBrush &brush )
  85 {
  86   Ref( brush );
  87
  88   if (wxTheBrushList) wxTheBrushList->AddBrush( this );
  89 }
  90
  91 wxBrush::wxBrush( const wxBrush *brush )
  92 {
  93   if (brush) Ref( *brush );
  94
  95   if (wxTheBrushList) wxTheBrushList->Append( this );
  96 }
  97
  98 wxBrush::~wxBrush(void)
  99 {
 100   if (wxTheBrushList) wxTheBrushList->RemoveBrush( this );
 101 }
 102
 103 wxBrush& wxBrush::operator = ( const wxBrush& brush )
 104 {
 105   if (*this == brush) return (*this);
 106   Ref( brush );
 107   return *this;
 108 }
 109
 110 bool wxBrush::operator == ( const wxBrush& brush )
 111 {
 112   return m_refData == brush.m_refData;
 113 }
 114
 115 bool wxBrush::operator != ( const wxBrush& brush )
 116 {
 117   return m_refData != brush.m_refData;
 118 }
 119
 120 bool wxBrush::Ok(void) const
 121 {
 122   return ((m_refData) && M_BRUSHDATA->m_colour.Ok());
 123 }
 124
 125 int wxBrush::GetStyle(void) const
 126 {
 127   if (m_refData == NULL)
 128   {
 129     wxFAIL_MSG( "invalid brush" );
 130     return 0;
 131   }
 132
 133   return M_BRUSHDATA->m_style;
 134 }
 135
 136 wxColour &wxBrush::GetColour(void) const
 137 {
 138   if (m_refData == NULL)
 139   {
 140     wxFAIL_MSG( "invalid brush" );
 141     return wxNullColour;
 142   }
 143
 144   return M_BRUSHDATA->m_colour;
 145 }
 146
 147 wxBitmap *wxBrush::GetStipple(void) const
 148 {
 149   if (m_refData == NULL)
 150   {
 151     wxFAIL_MSG( "invalid brush" );
 152     return &wxNullBitmap;
 153   }
 154
 155   return &M_BRUSHDATA->m_stipple;
 156 }
 157
 158 void wxBrush::SetColour( const wxColour& col )
 159 {
 160   Unshare();
 161   M_BRUSHDATA->m_colour = col;
 162 }
 163
 164 void wxBrush::SetColour( const wxString& col )
 165 {
 166   Unshare();
 167   M_BRUSHDATA->m_colour = col;
 168 }
 169
 170 void wxBrush::SetColour( unsigned char r, unsigned char g, unsigned char b )
 171 {
 172   Unshare();
 173   M_BRUSHDATA->m_colour.Set( r, g, b );
 174 }
 175
 176 void wxBrush::SetStyle( int style )
 177 {
 178   Unshare();
 179   M_BRUSHDATA->m_style = style;
 180 }
 181
 182 void wxBrush::SetStipple( const wxBitmap& stipple )
 183 {
 184   Unshare();
 185   M_BRUSHDATA->m_stipple = stipple;
 186 }
 187
 188 void wxBrush::Unshare(void)
 189 {
 190   if (!m_refData)
 191   {
 192     m_refData = new wxBrushRefData();
 193   }
 194   else
 195   {
 196     wxBrushRefData* ref = new wxBrushRefData( *(wxBrushRefData*)m_refData );
 197     UnRef();
 198     m_refData = ref;
 199   }
 200 }
 201