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
  26     wxBrushRefData();
  27     wxBrushRefData( const wxBrushRefData& data );
  28
  29     int        m_style;
  30     wxBitmap   m_stipple;
  31     wxColour   m_colour;
  32 };
  33
  34 wxBrushRefData::wxBrushRefData()
  35 {
  36   m_style = 0;
  37 }
  38
  39 wxBrushRefData::wxBrushRefData( const wxBrushRefData& data )
  40 {
  41   m_style = data.m_style;
  42   m_stipple = data.m_stipple;
  43   m_colour = data.m_colour;
  44 }
  45
  46 //-----------------------------------------------------------------------------
  47
  48 #define M_BRUSHDATA ((wxBrushRefData *)m_refData)
  49
  50 IMPLEMENT_DYNAMIC_CLASS(wxBrush,wxGDIObject)
  51
  52 wxBrush::wxBrush()
  53 {
  54   if (wxTheBrushList) wxTheBrushList->AddBrush( this );
  55 }
  56
  57 wxBrush::wxBrush( const wxColour &colour, int style )
  58 {
  59   m_refData = new wxBrushRefData();
  60   M_BRUSHDATA->m_style = style;
  61   M_BRUSHDATA->m_colour = colour;
  62
  63   if (wxTheBrushList) wxTheBrushList->AddBrush( this );
  64 }
  65
  66 wxBrush::wxBrush( const wxBitmap &stippleBitmap )
  67 {
  68   m_refData = new wxBrushRefData();
  69   M_BRUSHDATA->m_style = wxSTIPPLE;
  70   M_BRUSHDATA->m_colour = *wxBLACK;
  71   M_BRUSHDATA->m_stipple = stippleBitmap;
  72
  73   if (wxTheBrushList) wxTheBrushList->AddBrush( this );
  74 }
  75
  76 wxBrush::wxBrush( const wxBrush &brush )
  77 {
  78   Ref( brush );
  79
  80   if (wxTheBrushList) wxTheBrushList->AddBrush( this );
  81 }
  82
  83 wxBrush::~wxBrush()
  84 {
  85   if (wxTheBrushList) wxTheBrushList->RemoveBrush( this );
  86 }
  87
  88 wxBrush& wxBrush::operator = ( const wxBrush& brush )
  89 {
  90   if (*this == brush) return (*this);
  91   Ref( brush );
  92   return *this;
  93 }
  94
  95 bool wxBrush::operator == ( const wxBrush& brush )
  96 {
  97   return m_refData == brush.m_refData;
  98 }
  99
 100 bool wxBrush::operator != ( const wxBrush& brush )
 101 {
 102   return m_refData != brush.m_refData;
 103 }
 104
 105 bool wxBrush::Ok() const
 106 {
 107   return ((m_refData) && M_BRUSHDATA->m_colour.Ok());
 108 }
 109
 110 int wxBrush::GetStyle() const
 111 {
 112   if (m_refData == NULL)
 113   {
 114     wxFAIL_MSG( wxT("invalid brush") );
 115     return 0;
 116   }
 117
 118   return M_BRUSHDATA->m_style;
 119 }
 120
 121 wxColour &wxBrush::GetColour() const
 122 {
 123   if (m_refData == NULL)
 124   {
 125     wxFAIL_MSG( wxT("invalid brush") );
 126     return wxNullColour;
 127   }
 128
 129   return M_BRUSHDATA->m_colour;
 130 }
 131
 132 wxBitmap *wxBrush::GetStipple() const
 133 {
 134   if (m_refData == NULL)
 135   {
 136     wxFAIL_MSG( wxT("invalid brush") );
 137     return &wxNullBitmap;
 138   }
 139
 140   return &M_BRUSHDATA->m_stipple;
 141 }
 142
 143 void wxBrush::SetColour( const wxColour& col )
 144 {
 145   Unshare();
 146   M_BRUSHDATA->m_colour = col;
 147 }
 148
 149 void wxBrush::SetColour( unsigned char r, unsigned char g, unsigned char b )
 150 {
 151   Unshare();
 152   M_BRUSHDATA->m_colour.Set( r, g, b );
 153 }
 154
 155 void wxBrush::SetStyle( int style )
 156 {
 157   Unshare();
 158   M_BRUSHDATA->m_style = style;
 159 }
 160
 161 void wxBrush::SetStipple( const wxBitmap& stipple )
 162 {
 163   Unshare();
 164   M_BRUSHDATA->m_stipple = stipple;
 165 }
 166
 167 void wxBrush::Unshare()
 168 {
 169   if (!m_refData)
 170   {
 171     m_refData = new wxBrushRefData();
 172   }
 173   else
 174   {
 175     wxBrushRefData* ref = new wxBrushRefData( *(wxBrushRefData*)m_refData );
 176     UnRef();
 177     m_refData = ref;
 178   }
 179 }
 180