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 wxPen& pen )
  75 {
  76   Ref( pen );
  77   if (wxThePenList) wxThePenList->AddPen( this );
  78 }
  79
  80 wxPen::wxPen( const wxPen* pen )
  81 {
  82   UnRef();
  83   if (pen) Ref( *pen );
  84
  85   if (wxThePenList) wxThePenList->AddPen( this );
  86 }
  87
  88 wxPen::~wxPen(void)
  89 {
  90   if (wxThePenList) wxThePenList->RemovePen( this );
  91 }
  92
  93 wxPen& wxPen::operator = ( const wxPen& pen )
  94 {
  95   if (*this == pen) return (*this);
  96   Ref( pen );
  97   return *this;
  98 }
  99
 100 bool wxPen::operator == ( const wxPen& pen )
 101 {
 102   return m_refData == pen.m_refData;
 103 }
 104
 105 bool wxPen::operator != ( const wxPen& pen )
 106 {
 107   return m_refData != pen.m_refData;
 108 }
 109
 110 void wxPen::SetColour( const wxColour &colour )
 111 {
 112   Unshare();
 113   M_PENDATA->m_colour = colour;
 114 }
 115
 116 void wxPen::SetColour( int red, int green, int blue )
 117 {
 118   Unshare();
 119   M_PENDATA->m_colour.Set( red, green, blue );
 120 }
 121
 122 void wxPen::SetCap( int capStyle )
 123 {
 124   Unshare();
 125   M_PENDATA->m_capStyle = capStyle;
 126 }
 127
 128 void wxPen::SetJoin( int joinStyle )
 129 {
 130   Unshare();
 131   M_PENDATA->m_joinStyle = joinStyle;
 132 }
 133
 134 void wxPen::SetStyle( int style )
 135 {
 136   Unshare();
 137   M_PENDATA->m_style = style;
 138 }
 139
 140 void wxPen::SetWidth( int width )
 141 {
 142   Unshare();
 143   M_PENDATA->m_width = width;
 144 }
 145
 146 int wxPen::GetCap(void) const
 147 {
 148   if (!m_refData)
 149   {
 150     wxFAIL_MSG( "invalid pen" );
 151     return -1;
 152   }
 153
 154   return M_PENDATA->m_capStyle;
 155 }
 156
 157 int wxPen::GetJoin(void) const
 158 {
 159   if (!m_refData)
 160   {
 161     wxFAIL_MSG( "invalid pen" );
 162     return -1;
 163   }
 164
 165   return M_PENDATA->m_joinStyle;
 166 }
 167
 168 int wxPen::GetStyle(void) const
 169 {
 170   if (!m_refData)
 171   {
 172     wxFAIL_MSG( "invalid pen" );
 173     return -1;
 174   }
 175
 176   return M_PENDATA->m_style;
 177 }
 178
 179 int wxPen::GetWidth(void) const
 180 {
 181   if (!m_refData)
 182   {
 183     wxFAIL_MSG( "invalid pen" );
 184     return -1;
 185   }
 186
 187   return M_PENDATA->m_width;
 188 }
 189
 190 wxColour &wxPen::GetColour(void) const
 191 {
 192   if (!m_refData)
 193   {
 194     wxFAIL_MSG( "invalid pen" );
 195     return wxNullColour;
 196   }
 197
 198   return M_PENDATA->m_colour;
 199 }
 200
 201 bool wxPen::Ok(void) const
 202 {
 203   return (m_refData != NULL);
 204 }
 205
 206 void wxPen::Unshare(void)
 207 {
 208   if (!m_refData)
 209   {
 210     m_refData = new wxPenRefData();
 211   }
 212   else
 213   {
 214     wxPenRefData* ref = new wxPenRefData( *(wxPenRefData*)m_refData );
 215     UnRef();
 216     m_refData = ref;
 217   }
 218 }
 219