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(void)
  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( const wxPen* pen )
  80 {
  81     UnRef();
  82     if (pen) Ref( *pen );
  83
  84     if (wxThePenList) wxThePenList->AddPen( this );
  85 }
  86
  87 wxPen::~wxPen()
  88 {
  89     if (wxThePenList) wxThePenList->RemovePen( this );
  90 }
  91
  92 wxPen& wxPen::operator = ( const wxPen& pen )
  93 {
  94     if (*this == pen) return (*this);
  95     Ref( pen );
  96     return *this;
  97 }
  98
  99 bool wxPen::operator == ( const wxPen& pen )
 100 {
 101     return m_refData == pen.m_refData;
 102 }
 103
 104 bool wxPen::operator != ( const wxPen& pen )
 105 {
 106     return m_refData != pen.m_refData;
 107 }
 108
 109 void wxPen::SetColour( const wxColour &colour )
 110 {
 111     Unshare();
 112     M_PENDATA->m_colour = colour;
 113 }
 114
 115 void wxPen::SetColour( int red, int green, int blue )
 116 {
 117     Unshare();
 118     M_PENDATA->m_colour.Set( red, green, blue );
 119 }
 120
 121 void wxPen::SetCap( int capStyle )
 122 {
 123     Unshare();
 124     M_PENDATA->m_capStyle = capStyle;
 125 }
 126
 127 void wxPen::SetJoin( int joinStyle )
 128 {
 129     Unshare();
 130     M_PENDATA->m_joinStyle = joinStyle;
 131 }
 132
 133 void wxPen::SetStyle( int style )
 134 {
 135     Unshare();
 136     M_PENDATA->m_style = style;
 137 }
 138
 139 void wxPen::SetWidth( int width )
 140 {
 141     Unshare();
 142     M_PENDATA->m_width = width;
 143 }
 144
 145 int wxPen::GetCap() const
 146 {
 147     wxCHECK_MSG( Ok(), -1, "invalid pen" );
 148
 149     return M_PENDATA->m_capStyle;
 150 }
 151
 152 int wxPen::GetJoin() const
 153 {
 154     wxCHECK_MSG( Ok(), -1, "invalid pen" );
 155
 156     return M_PENDATA->m_joinStyle;
 157 }
 158
 159 int wxPen::GetStyle() const
 160 {
 161     wxCHECK_MSG( Ok(), -1, "invalid pen" );
 162
 163     return M_PENDATA->m_style;
 164 }
 165
 166 int wxPen::GetWidth() const
 167 {
 168     wxCHECK_MSG( Ok(), -1, "invalid pen" );
 169
 170     return M_PENDATA->m_width;
 171 }
 172
 173 wxColour &wxPen::GetColour() const
 174 {
 175     wxCHECK_MSG( Ok(), wxNullColour, "invalid pen" );
 176
 177     return M_PENDATA->m_colour;
 178 }
 179
 180 bool wxPen::Ok() const
 181 {
 182     return (m_refData != NULL);
 183 }
 184
 185 void wxPen::Unshare()
 186 {
 187     if (!m_refData)
 188     {
 189         m_refData = new wxPenRefData();
 190     }
 191     else
 192     {
 193         wxPenRefData* ref = new wxPenRefData( *(wxPenRefData*)m_refData );
 194         UnRef();
 195         m_refData = ref;
 196     }
 197 }
 198