src/gtk/pen.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        pen.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
  12 #ifdef __GNUG__
  13 #pragma implementation "pen.h"
  14 #endif
  15
  16 #include "wx/pen.h"
  17
  18 //-----------------------------------------------------------------------------
  19 // wxPen
  20 //-----------------------------------------------------------------------------
  21
  22 class wxPenRefData: public wxObjectRefData
  23 {
  24   public:
  25
  26     wxPenRefData(void);
  27     wxPenRefData(const wxPenRefData& data);
  28
  29     int        m_width;
  30     int        m_style;
  31     int        m_joinStyle;
  32     int        m_capStyle;
  33     wxColour   m_colour;
  34 };
  35
  36 wxPenRefData::wxPenRefData(void)
  37 {
  38   m_width = 1;
  39   m_style = wxSOLID;
  40   m_joinStyle = wxJOIN_ROUND;
  41   m_capStyle = wxCAP_ROUND;
  42 }
  43
  44 wxPenRefData::wxPenRefData( const wxPenRefData& data )
  45 {
  46   m_style = data.m_style;
  47   m_width = data.m_width;
  48   m_joinStyle = data.m_joinStyle;
  49   m_capStyle = data.m_capStyle;
  50   m_colour = data.m_colour;
  51 }
  52
  53 //-----------------------------------------------------------------------------
  54
  55 #define M_PENDATA ((wxPenRefData *)m_refData)
  56
  57 IMPLEMENT_DYNAMIC_CLASS(wxPen,wxGDIObject)
  58
  59 wxPen::wxPen(void)
  60 {
  61   if (wxThePenList) wxThePenList->AddPen( this );
  62 }
  63
  64 wxPen::wxPen( const wxColour &colour, int width, int style )
  65 {
  66   m_refData = new wxPenRefData();
  67   M_PENDATA->m_width = width;
  68   M_PENDATA->m_style = style;
  69   M_PENDATA->m_colour = colour;
  70
  71   if (wxThePenList) wxThePenList->AddPen( this );
  72 }
  73
  74 wxPen::wxPen( const wxString &colourName, int width, int style )
  75 {
  76   m_refData = new wxPenRefData();
  77   M_PENDATA->m_width = width;
  78   M_PENDATA->m_style = style;
  79   M_PENDATA->m_colour = colourName;
  80
  81   if (wxThePenList) wxThePenList->AddPen( this );
  82 }
  83
  84 wxPen::wxPen( const wxPen& pen )
  85 {
  86   Ref( pen );
  87   if (wxThePenList) wxThePenList->AddPen( this );
  88 }
  89
  90 wxPen::wxPen( const wxPen* pen )
  91 {
  92   UnRef();
  93   if (pen) Ref( *pen );
  94
  95   if (wxThePenList) wxThePenList->AddPen( this );
  96 }
  97
  98 wxPen::~wxPen(void)
  99 {
 100   if (wxThePenList) wxThePenList->RemovePen( this );
 101 }
 102
 103 wxPen& wxPen::operator = ( const wxPen& pen )
 104 {
 105   if (*this == pen) return (*this);
 106   Ref( pen );
 107   return *this;
 108 }
 109
 110 bool wxPen::operator == ( const wxPen& pen )
 111 {
 112   return m_refData == pen.m_refData;
 113 }
 114
 115 bool wxPen::operator != ( const wxPen& pen )
 116 {
 117   return m_refData != pen.m_refData;
 118 }
 119
 120 void wxPen::SetColour( const wxColour &colour )
 121 {
 122   Unshare();
 123   M_PENDATA->m_colour = colour;
 124 }
 125
 126 void wxPen::SetColour( const wxString &colourName )
 127 {
 128   Unshare();
 129   M_PENDATA->m_colour = colourName;
 130 }
 131
 132 void wxPen::SetColour( int red, int green, int blue )
 133 {
 134   Unshare();
 135   M_PENDATA->m_colour.Set( red, green, blue );
 136 }
 137
 138 void wxPen::SetCap( int capStyle )
 139 {
 140   Unshare();
 141   M_PENDATA->m_capStyle = capStyle;
 142 }
 143
 144 void wxPen::SetJoin( int joinStyle )
 145 {
 146   Unshare();
 147   M_PENDATA->m_joinStyle = joinStyle;
 148 }
 149
 150 void wxPen::SetStyle( int style )
 151 {
 152   Unshare();
 153   M_PENDATA->m_style = style;
 154 }
 155
 156 void wxPen::SetWidth( int width )
 157 {
 158   Unshare();
 159   M_PENDATA->m_width = width;
 160 }
 161
 162 int wxPen::GetCap(void) const
 163 {
 164   if (!m_refData)
 165   {
 166     wxFAIL_MSG( "invalid pen" );
 167     return -1;
 168   }
 169
 170   return M_PENDATA->m_capStyle;
 171 }
 172
 173 int wxPen::GetJoin(void) const
 174 {
 175   if (!m_refData)
 176   {
 177     wxFAIL_MSG( "invalid pen" );
 178     return -1;
 179   }
 180
 181   return M_PENDATA->m_joinStyle;
 182 }
 183
 184 int wxPen::GetStyle(void) const
 185 {
 186   if (!m_refData)
 187   {
 188     wxFAIL_MSG( "invalid pen" );
 189     return -1;
 190   }
 191
 192   return M_PENDATA->m_style;
 193 }
 194
 195 int wxPen::GetWidth(void) const
 196 {
 197   if (!m_refData)
 198   {
 199     wxFAIL_MSG( "invalid pen" );
 200     return -1;
 201   }
 202
 203   return M_PENDATA->m_width;
 204 }
 205
 206 wxColour &wxPen::GetColour(void) const
 207 {
 208   if (!m_refData)
 209   {
 210     wxFAIL_MSG( "invalid pen" );
 211     return wxNullColour;
 212   }
 213
 214   return M_PENDATA->m_colour;
 215 }
 216
 217 bool wxPen::Ok(void) const
 218 {
 219   return (m_refData != NULL);
 220 }
 221
 222 void wxPen::Unshare(void)
 223 {
 224   if (!m_refData)
 225   {
 226     m_refData = new wxPenRefData();
 227   }
 228   else
 229   {
 230     wxPenRefData* ref = new wxPenRefData( *(wxPenRefData*)m_refData );
 231     UnRef();
 232     m_refData = ref;
 233   }
 234 }
 235