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