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