src/mgl/pen.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        pen.cpp
   3 // Purpose:
   4 // Author:      Vaclav Slavik
   5 // Id:          $Id$
   6 // Copyright:   (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "pen.h"
  13 #endif
  14
  15 // For compilers that support precompilation, includes "wx.h".
  16 #include "wx/wxprec.h"
  17
  18 #ifdef __BORLANDC__
  19     #pragma hdrstop
  20 #endif
  21
  22 #include "wx/pen.h"
  23 #include "wx/bitmap.h"
  24 #include "wx/mgl/private.h"
  25
  26 //-----------------------------------------------------------------------------
  27 // wxPen
  28 //-----------------------------------------------------------------------------
  29
  30 class wxPenRefData: public wxObjectRefData
  31 {
  32     public:
  33         wxPenRefData();
  34         wxPenRefData(const wxPenRefData& data);
  35
  36         int            m_width;
  37         int            m_style;
  38         wxColour       m_colour;
  39         wxBitmap       m_stipple;
  40         pixpattern24_t m_pixPattern;
  41
  42         // not used by wxMGL, but we want to preserve values
  43         int            m_joinStyle;
  44         int            m_capStyle;
  45         int            m_countDashes;
  46         wxDash        *m_dash;
  47 };
  48
  49 wxPenRefData::wxPenRefData()
  50 {
  51     m_width = 1;
  52     m_style = wxSOLID;
  53     m_joinStyle = wxJOIN_ROUND;
  54     m_capStyle = wxCAP_ROUND;
  55     m_dash = (wxDash*) NULL;
  56     m_countDashes = 0;
  57
  58     int x, y, c;
  59     for (y = 0; y < 8; y++)
  60         for (x = 0; x < 8; x++)
  61             for (c = 0; c < 3; c++)
  62                 m_pixPattern.p[x][y][c] = 0;
  63 }
  64
  65 wxPenRefData::wxPenRefData(const wxPenRefData& data)
  66 {
  67     m_style = data.m_style;
  68     m_width = data.m_width;
  69     m_joinStyle = data.m_joinStyle;
  70     m_capStyle = data.m_capStyle;
  71     m_colour = data.m_colour;
  72     m_countDashes = data.m_countDashes;
  73     m_dash = data.m_dash;
  74     m_stipple = data.m_stipple;
  75
  76     int x, y, c;
  77     for (y = 0; y < 8; y++)
  78         for (x = 0; x < 8; x++)
  79             for (c = 0; c < 3; c++)
  80                 m_pixPattern.p[x][y][c] = data.m_pixPattern.p[x][y][c];
  81 }
  82
  83 //-----------------------------------------------------------------------------
  84
  85 #define M_PENDATA ((wxPenRefData *)m_refData)
  86
  87 IMPLEMENT_DYNAMIC_CLASS(wxPen,wxGDIObject)
  88
  89 wxPen::wxPen(const wxColour &colour, int width, int style)
  90 {
  91     m_refData = new wxPenRefData();
  92     M_PENDATA->m_width = width;
  93     M_PENDATA->m_style = style;
  94     M_PENDATA->m_colour = colour;
  95 }
  96
  97 wxPen::wxPen(const wxBitmap& stipple, int width)
  98 {
  99     wxCHECK_RET( stipple.Ok(), _T("invalid bitmap") );
 100     wxCHECK_RET( stipple.GetWidth() == 8 && stipple.GetHeight() == 8,
 101                   _T("stipple bitmap must be 8x8") );
 102
 103     m_refData = new wxPenRefData();
 104     M_PENDATA->m_width = width;
 105     M_PENDATA->m_style = wxSTIPPLE;
 106     M_PENDATA->m_stipple = stipple;
 107     wxBitmapToPixPattern(stipple, &(M_PENDATA->m_pixPattern), NULL);
 108 }
 109
 110 wxPen::wxPen(const wxPen& pen)
 111 {
 112     Ref(pen);
 113 }
 114
 115 wxPen& wxPen::operator = (const wxPen& pen)
 116 {
 117     if (*this == pen) return (*this);
 118     Ref(pen);
 119     return *this;
 120 }
 121
 122 bool wxPen::operator == (const wxPen& pen) const
 123 {
 124     return m_refData == pen.m_refData;
 125 }
 126
 127 bool wxPen::operator != (const wxPen& pen) const
 128 {
 129     return m_refData != pen.m_refData;
 130 }
 131
 132 void wxPen::SetColour(const wxColour &colour)
 133 {
 134     Unshare();
 135     M_PENDATA->m_colour = colour;
 136 }
 137
 138 void wxPen::SetDashes(int number_of_dashes, const wxDash *dash)
 139 {
 140     Unshare();
 141     M_PENDATA->m_countDashes = number_of_dashes;
 142     M_PENDATA->m_dash = (wxDash *)dash; /* TODO */
 143 }
 144
 145 void wxPen::SetColour(int red, int green, int blue)
 146 {
 147     Unshare();
 148     M_PENDATA->m_colour.Set(red, green, blue);
 149 }
 150
 151 void wxPen::SetCap(int capStyle)
 152 {
 153     Unshare();
 154     M_PENDATA->m_capStyle = capStyle;
 155 }
 156
 157 void wxPen::SetJoin(int joinStyle)
 158 {
 159     Unshare();
 160     M_PENDATA->m_joinStyle = joinStyle;
 161 }
 162
 163 void wxPen::SetStyle(int style)
 164 {
 165     Unshare();
 166     M_PENDATA->m_style = style;
 167 }
 168
 169 void wxPen::SetStipple(const wxBitmap& stipple)
 170 {
 171     wxCHECK_RET( stipple.Ok(), _T("invalid bitmap") );
 172     wxCHECK_RET( stipple.GetWidth() == 8 && stipple.GetHeight() == 8,
 173                   _T("stipple bitmap must be 8x8") );
 174
 175     Unshare();
 176     M_PENDATA->m_stipple = stipple;
 177     wxBitmapToPixPattern(stipple, &(M_PENDATA->m_pixPattern), NULL);
 178 }
 179
 180 void wxPen::SetWidth(int width)
 181 {
 182     Unshare();
 183     M_PENDATA->m_width = width;
 184 }
 185
 186 int wxPen::GetDashes(wxDash **ptr) const
 187 {
 188      *ptr = (M_PENDATA ? (wxDash*)M_PENDATA->m_dash : (wxDash*) NULL);
 189      return (M_PENDATA ? M_PENDATA->m_countDashes : 0);
 190 }
 191
 192 int wxPen::GetDashCount() const
 193 {
 194     return (M_PENDATA->m_countDashes);
 195 }
 196
 197 wxDash* wxPen::GetDash() const
 198 {
 199     return (wxDash*)M_PENDATA->m_dash;
 200 }
 201
 202 int wxPen::GetCap() const
 203 {
 204     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 205
 206     return M_PENDATA->m_capStyle;
 207 }
 208
 209 int wxPen::GetJoin() const
 210 {
 211     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 212
 213     return M_PENDATA->m_joinStyle;
 214 }
 215
 216 int wxPen::GetStyle() const
 217 {
 218     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 219
 220     return M_PENDATA->m_style;
 221 }
 222
 223 int wxPen::GetWidth() const
 224 {
 225     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 226
 227     return M_PENDATA->m_width;
 228 }
 229
 230 wxColour &wxPen::GetColour() const
 231 {
 232     wxCHECK_MSG( Ok(), wxNullColour, wxT("invalid pen") );
 233
 234     return M_PENDATA->m_colour;
 235 }
 236
 237 wxBitmap *wxPen::GetStipple() const
 238 {
 239     wxCHECK_MSG( Ok(), NULL, wxT("invalid pen") );
 240
 241     return &(M_PENDATA->m_stipple);
 242 }
 243
 244 void* wxPen::GetPixPattern() const
 245 {
 246     wxCHECK_MSG( Ok(), NULL, wxT("invalid pen") );
 247
 248     return (void*)&(M_PENDATA->m_pixPattern);
 249 }
 250
 251
 252 bool wxPen::Ok() const
 253 {
 254     return (m_refData != NULL);
 255 }
 256
 257 void wxPen::Unshare()
 258 {
 259     if (!m_refData)
 260     {
 261         m_refData = new wxPenRefData();
 262     }
 263     else
 264     {
 265         wxPenRefData* ref = new wxPenRefData( *(wxPenRefData*)m_refData );
 266         UnRef();
 267         m_refData = ref;
 268     }
 269 }
 270