src/gtk/pen.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        pen.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "pen.h"
  13 #endif
  14
  15 #include "wx/pen.h"
  16
  17 //-----------------------------------------------------------------------------
  18 // wxPen
  19 //-----------------------------------------------------------------------------
  20
  21 class wxPenRefData: public wxObjectRefData
  22 {
  23 public:
  24
  25   wxPenRefData(void);
  26   wxPenRefData(const wxPenRefData& data);
  27
  28   int        m_width;
  29   int        m_style;
  30   int        m_joinStyle;
  31   int        m_capStyle;
  32   wxColour   m_colour;
  33 };
  34
  35 wxPenRefData::wxPenRefData()
  36 {
  37     m_width = 1;
  38     m_style = wxSOLID;
  39     m_joinStyle = wxJOIN_ROUND;
  40     m_capStyle = wxCAP_ROUND;
  41 }
  42
  43 wxPenRefData::wxPenRefData( const wxPenRefData& data )
  44 {
  45     m_style = data.m_style;
  46     m_width = data.m_width;
  47     m_joinStyle = data.m_joinStyle;
  48     m_capStyle = data.m_capStyle;
  49     m_colour = data.m_colour;
  50 }
  51
  52 //-----------------------------------------------------------------------------
  53
  54 #define M_PENDATA ((wxPenRefData *)m_refData)
  55
  56 IMPLEMENT_DYNAMIC_CLASS(wxPen,wxGDIObject)
  57
  58 wxPen::wxPen()
  59 {
  60     if (wxThePenList) wxThePenList->AddPen( this );
  61 }
  62
  63 wxPen::wxPen( const wxColour &colour, int width, int style )
  64 {
  65     m_refData = new wxPenRefData();
  66     M_PENDATA->m_width = width;
  67     M_PENDATA->m_style = style;
  68     M_PENDATA->m_colour = colour;
  69
  70     if (wxThePenList) wxThePenList->AddPen( this );
  71 }
  72
  73 wxPen::wxPen( const wxPen& pen )
  74 {
  75     Ref( pen );
  76     if (wxThePenList) wxThePenList->AddPen( this );
  77 }
  78
  79 wxPen::~wxPen()
  80 {
  81     if (wxThePenList) wxThePenList->RemovePen( this );
  82 }
  83
  84 wxPen& wxPen::operator = ( const wxPen& pen )
  85 {
  86     if (*this == pen) return (*this);
  87     Ref( pen );
  88     return *this;
  89 }
  90
  91 bool wxPen::operator == ( const wxPen& pen )
  92 {
  93     return m_refData == pen.m_refData;
  94 }
  95
  96 bool wxPen::operator != ( const wxPen& pen )
  97 {
  98     return m_refData != pen.m_refData;
  99 }
 100
 101 void wxPen::SetColour( const wxColour &colour )
 102 {
 103     Unshare();
 104     M_PENDATA->m_colour = colour;
 105 }
 106
 107 void wxPen::SetColour( int red, int green, int blue )
 108 {
 109     Unshare();
 110     M_PENDATA->m_colour.Set( red, green, blue );
 111 }
 112
 113 void wxPen::SetCap( int capStyle )
 114 {
 115     Unshare();
 116     M_PENDATA->m_capStyle = capStyle;
 117 }
 118
 119 void wxPen::SetJoin( int joinStyle )
 120 {
 121     Unshare();
 122     M_PENDATA->m_joinStyle = joinStyle;
 123 }
 124
 125 void wxPen::SetStyle( int style )
 126 {
 127     Unshare();
 128     M_PENDATA->m_style = style;
 129 }
 130
 131 void wxPen::SetWidth( int width )
 132 {
 133     Unshare();
 134     M_PENDATA->m_width = width;
 135 }
 136
 137 int wxPen::GetCap() const
 138 {
 139     wxCHECK_MSG( Ok(), -1, "invalid pen" );
 140
 141     return M_PENDATA->m_capStyle;
 142 }
 143
 144 int wxPen::GetJoin() const
 145 {
 146     wxCHECK_MSG( Ok(), -1, "invalid pen" );
 147
 148     return M_PENDATA->m_joinStyle;
 149 }
 150
 151 int wxPen::GetStyle() const
 152 {
 153     wxCHECK_MSG( Ok(), -1, "invalid pen" );
 154
 155     return M_PENDATA->m_style;
 156 }
 157
 158 int wxPen::GetWidth() const
 159 {
 160     wxCHECK_MSG( Ok(), -1, "invalid pen" );
 161
 162     return M_PENDATA->m_width;
 163 }
 164
 165 wxColour &wxPen::GetColour() const
 166 {
 167     wxCHECK_MSG( Ok(), wxNullColour, "invalid pen" );
 168
 169     return M_PENDATA->m_colour;
 170 }
 171
 172 bool wxPen::Ok() const
 173 {
 174     return (m_refData != NULL);
 175 }
 176
 177 void wxPen::Unshare()
 178 {
 179     if (!m_refData)
 180     {
 181         m_refData = new wxPenRefData();
 182     }
 183     else
 184     {
 185         wxPenRefData* ref = new wxPenRefData( *(wxPenRefData*)m_refData );
 186         UnRef();
 187         m_refData = ref;
 188     }
 189 }
 190