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();
  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   int        m_countDashes;
  36   wxDash    *m_dash;
  37 };
  38
  39 wxPenRefData::wxPenRefData()
  40 {
  41     m_width = 1;
  42     m_style = wxSOLID;
  43     m_joinStyle = wxJOIN_ROUND;
  44     m_capStyle = wxCAP_ROUND;
  45     m_dash = (wxDash*) NULL;
  46     m_countDashes = 0;
  47 }
  48
  49 wxPenRefData::wxPenRefData( const wxPenRefData& data )
  50 {
  51     m_style = data.m_style;
  52     m_width = data.m_width;
  53     m_joinStyle = data.m_joinStyle;
  54     m_capStyle = data.m_capStyle;
  55     m_colour = data.m_colour;
  56     m_countDashes = data.m_countDashes;
  57 /*
  58     if (data.m_dash)  TODO
  59       m_dash = new
  60 */
  61     m_dash = data.m_dash;
  62 }
  63
  64 //-----------------------------------------------------------------------------
  65
  66 #define M_PENDATA ((wxPenRefData *)m_refData)
  67
  68 IMPLEMENT_DYNAMIC_CLASS(wxPen,wxGDIObject)
  69
  70 wxPen::wxPen()
  71 {
  72     if (wxThePenList) wxThePenList->AddPen( this );
  73 }
  74
  75 wxPen::wxPen( const wxColour &colour, int width, int style )
  76 {
  77     m_refData = new wxPenRefData();
  78     M_PENDATA->m_width = width;
  79     M_PENDATA->m_style = style;
  80     M_PENDATA->m_colour = colour;
  81
  82     if (wxThePenList) wxThePenList->AddPen( this );
  83 }
  84
  85 wxPen::wxPen( const wxPen& pen )
  86 {
  87     Ref( pen );
  88     if (wxThePenList) wxThePenList->AddPen( this );
  89 }
  90
  91 wxPen::~wxPen()
  92 {
  93     if (wxThePenList) wxThePenList->RemovePen( this );
  94 }
  95
  96 wxPen& wxPen::operator = ( const wxPen& pen )
  97 {
  98     if (*this == pen) return (*this);
  99     Ref( pen );
 100     return *this;
 101 }
 102
 103 bool wxPen::operator == ( const wxPen& pen )
 104 {
 105     return m_refData == pen.m_refData;
 106 }
 107
 108 bool wxPen::operator != ( const wxPen& pen )
 109 {
 110     return m_refData != pen.m_refData;
 111 }
 112
 113 void wxPen::SetColour( const wxColour &colour )
 114 {
 115     Unshare();
 116     M_PENDATA->m_colour = colour;
 117 }
 118
 119 void wxPen::SetDashes( int number_of_dashes, const wxDash *dash )
 120 {
 121     Unshare();
 122     M_PENDATA->m_countDashes = number_of_dashes;
 123     M_PENDATA->m_dash = (wxDash *)dash; /* TODO */
 124 }
 125
 126 void wxPen::SetColour( int red, int green, int blue )
 127 {
 128     Unshare();
 129     M_PENDATA->m_colour.Set( red, green, blue );
 130 }
 131
 132 void wxPen::SetCap( int capStyle )
 133 {
 134     Unshare();
 135     M_PENDATA->m_capStyle = capStyle;
 136 }
 137
 138 void wxPen::SetJoin( int joinStyle )
 139 {
 140     Unshare();
 141     M_PENDATA->m_joinStyle = joinStyle;
 142 }
 143
 144 void wxPen::SetStyle( int style )
 145 {
 146     Unshare();
 147     M_PENDATA->m_style = style;
 148 }
 149
 150 void wxPen::SetWidth( int width )
 151 {
 152     Unshare();
 153     M_PENDATA->m_width = width;
 154 }
 155
 156 int wxPen::GetDashes( wxDash **ptr ) const
 157 {
 158      *ptr = (M_PENDATA ? M_PENDATA->m_dash : (wxDash*) NULL);
 159      return (M_PENDATA ? M_PENDATA->m_countDashes : 0);
 160 }
 161
 162 int wxPen::GetDashCount() const
 163 {
 164     return (M_PENDATA->m_countDashes);
 165 }
 166
 167 wxDash* wxPen::GetDash() const
 168 {
 169     return (M_PENDATA->m_dash);
 170 }
 171
 172 int wxPen::GetCap() const
 173 {
 174     wxCHECK_MSG( Ok(), -1, T("invalid pen") );
 175
 176     return M_PENDATA->m_capStyle;
 177 }
 178
 179 int wxPen::GetJoin() const
 180 {
 181     wxCHECK_MSG( Ok(), -1, T("invalid pen") );
 182
 183     return M_PENDATA->m_joinStyle;
 184 }
 185
 186 int wxPen::GetStyle() const
 187 {
 188     wxCHECK_MSG( Ok(), -1, T("invalid pen") );
 189
 190     return M_PENDATA->m_style;
 191 }
 192
 193 int wxPen::GetWidth() const
 194 {
 195     wxCHECK_MSG( Ok(), -1, T("invalid pen") );
 196
 197     return M_PENDATA->m_width;
 198 }
 199
 200 wxColour &wxPen::GetColour() const
 201 {
 202     wxCHECK_MSG( Ok(), wxNullColour, T("invalid pen") );
 203
 204     return M_PENDATA->m_colour;
 205 }
 206
 207 bool wxPen::Ok() const
 208 {
 209     return (m_refData != NULL);
 210 }
 211
 212 void wxPen::Unshare()
 213 {
 214     if (!m_refData)
 215     {
 216         m_refData = new wxPenRefData();
 217     }
 218     else
 219     {
 220         wxPenRefData* ref = new wxPenRefData( *(wxPenRefData*)m_refData );
 221         UnRef();
 222         m_refData = ref;
 223     }
 224 }
 225