src/mgl/pen.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mgl/pen.cpp
   3 // Purpose:
   4 // Author:      Vaclav Slavik
   5 // Id:          $Id$
   6 // Copyright:   (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com)
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #ifdef __BORLANDC__
  14     #pragma hdrstop
  15 #endif
  16
  17 #include "wx/pen.h"
  18
  19 #ifndef WX_PRECOMP
  20     #include "wx/bitmap.h"
  21     #include "wx/colour.h"
  22 #endif
  23
  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     bool operator==(const wxPenRefData& data) const
  37     {
  38         // we intentionally don't compare m_hPen fields here
  39         return m_style == data.m_style &&
  40                m_width == data.m_width &&
  41                memcmp(&m_pixPattern,
  42                       &data.m_pixPattern, sizeof(m_pixPattern)) == 0 &&
  43                m_capStyle == data.m_capStyle &&
  44                m_joinStyle == data.m_joinStyle &&
  45                m_colour == data.m_colour &&
  46                (m_style != wxPENSTYLE_STIPPLE || m_stipple.IsSameAs(data.m_stipple)) &&
  47                (m_style != wxPENSTYLE_USER_DASH ||
  48                 (m_dash == data.m_dash &&
  49                     memcmp(m_dash, data.m_dash, m_countDashes*sizeof(wxDash)) == 0));
  50     }
  51
  52     int            m_width;
  53     wxPenStyle     m_style;
  54     wxColour       m_colour;
  55     wxBitmap       m_stipple;
  56     pixpattern24_t m_pixPattern;
  57
  58     // not used by wxMGL, but we want to preserve values
  59     wxPenJoin      m_joinStyle;
  60     wxPenCap       m_capStyle;
  61     int            m_countDashes;
  62     wxDash        *m_dash;
  63 };
  64
  65 wxPenRefData::wxPenRefData()
  66 {
  67     m_width = 1;
  68     m_style = wxPENSTYLE_SOLID;
  69     m_joinStyle = wxJOIN_ROUND;
  70     m_capStyle = wxCAP_ROUND;
  71     m_dash = (wxDash*) NULL;
  72     m_countDashes = 0;
  73
  74     int x, y, c;
  75     for (y = 0; y < 8; y++)
  76         for (x = 0; x < 8; x++)
  77             for (c = 0; c < 3; c++)
  78                 m_pixPattern.p[x][y][c] = 0;
  79 }
  80
  81 wxPenRefData::wxPenRefData(const wxPenRefData& data)
  82 {
  83     m_style = data.m_style;
  84     m_width = data.m_width;
  85     m_joinStyle = data.m_joinStyle;
  86     m_capStyle = data.m_capStyle;
  87     m_colour = data.m_colour;
  88     m_countDashes = data.m_countDashes;
  89     m_dash = data.m_dash;
  90     m_stipple = data.m_stipple;
  91
  92     int x, y, c;
  93     for (y = 0; y < 8; y++)
  94         for (x = 0; x < 8; x++)
  95             for (c = 0; c < 3; c++)
  96                 m_pixPattern.p[x][y][c] = data.m_pixPattern.p[x][y][c];
  97 }
  98
  99 //-----------------------------------------------------------------------------
 100
 101 #define M_PENDATA ((wxPenRefData *)m_refData)
 102
 103 IMPLEMENT_DYNAMIC_CLASS(wxPen,wxGDIObject)
 104
 105 wxPen::wxPen(const wxColour &colour, int width, wxPenStyle style)
 106 {
 107     m_refData = new wxPenRefData();
 108     M_PENDATA->m_width = width;
 109     M_PENDATA->m_style = style;
 110     M_PENDATA->m_colour = colour;
 111 }
 112
 113 wxPen::wxPen(const wxColour& colour, int width, wxBrushStyle style)
 114 {
 115     m_refData = new wxPenRefData();
 116     M_PENDATA->m_width = width;
 117     M_PENDATA->m_style = (wxPenStyle)style;
 118     M_PENDATA->m_colour = colour;
 119 }
 120
 121 wxPen::wxPen(const wxBitmap& stipple, int width)
 122 {
 123     wxCHECK_RET( stipple.Ok(), _T("invalid bitmap") );
 124     wxCHECK_RET( stipple.GetWidth() == 8 && stipple.GetHeight() == 8,
 125                   _T("stipple bitmap must be 8x8") );
 126
 127     m_refData = new wxPenRefData();
 128     M_PENDATA->m_width = width;
 129     M_PENDATA->m_style = wxPENSTYLE_STIPPLE;
 130     M_PENDATA->m_stipple = stipple;
 131     wxBitmapToPixPattern(stipple, &(M_PENDATA->m_pixPattern), NULL);
 132 }
 133
 134 bool wxPen::operator == (const wxPen& pen) const
 135 {
 136     if (m_refData == pen.m_refData) return true;
 137
 138     if (!m_refData || !pen.m_refData) return false;
 139
 140     return ( *(wxPenRefData*)m_refData == *(wxPenRefData*)pen.m_refData );
 141 }
 142
 143 bool wxPen::operator != (const wxPen& pen) const
 144 {
 145     return m_refData != pen.m_refData;
 146 }
 147
 148 void wxPen::SetColour(const wxColour &colour)
 149 {
 150     AllocExclusive();
 151     M_PENDATA->m_colour = colour;
 152 }
 153
 154 void wxPen::SetDashes(int number_of_dashes, const wxDash *dash)
 155 {
 156     AllocExclusive();
 157     M_PENDATA->m_countDashes = number_of_dashes;
 158     M_PENDATA->m_dash = (wxDash *)dash; /* TODO */
 159 }
 160
 161 void wxPen::SetColour(unsigned char red, unsigned char green, unsigned char blue)
 162 {
 163     AllocExclusive();
 164     M_PENDATA->m_colour.Set(red, green, blue);
 165 }
 166
 167 void wxPen::SetCap(wxPenCap capStyle)
 168 {
 169     AllocExclusive();
 170     M_PENDATA->m_capStyle = capStyle;
 171 }
 172
 173 void wxPen::SetJoin(wxPenJoin joinStyle)
 174 {
 175     AllocExclusive();
 176     M_PENDATA->m_joinStyle = joinStyle;
 177 }
 178
 179 void wxPen::SetStyle(wxPenStyle style)
 180 {
 181     AllocExclusive();
 182     M_PENDATA->m_style = style;
 183 }
 184
 185 void wxPen::SetStipple(const wxBitmap& stipple)
 186 {
 187     wxCHECK_RET( stipple.Ok(), _T("invalid bitmap") );
 188     wxCHECK_RET( stipple.GetWidth() == 8 && stipple.GetHeight() == 8,
 189                   _T("stipple bitmap must be 8x8") );
 190
 191     AllocExclusive();
 192     M_PENDATA->m_stipple = stipple;
 193     wxBitmapToPixPattern(stipple, &(M_PENDATA->m_pixPattern), NULL);
 194 }
 195
 196 void wxPen::SetWidth(int width)
 197 {
 198     AllocExclusive();
 199     M_PENDATA->m_width = width;
 200 }
 201
 202 int wxPen::GetDashes(wxDash **ptr) const
 203 {
 204      *ptr = (M_PENDATA ? (wxDash*)M_PENDATA->m_dash : (wxDash*) NULL);
 205      return (M_PENDATA ? M_PENDATA->m_countDashes : 0);
 206 }
 207
 208 int wxPen::GetDashCount() const
 209 {
 210     return (M_PENDATA->m_countDashes);
 211 }
 212
 213 wxDash* wxPen::GetDash() const
 214 {
 215     return (wxDash*)M_PENDATA->m_dash;
 216 }
 217
 218 wxPenCap wxPen::GetCap() const
 219 {
 220     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 221
 222     return M_PENDATA->m_capStyle;
 223 }
 224
 225 wxPenJoin wxPen::GetJoin() const
 226 {
 227     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 228
 229     return M_PENDATA->m_joinStyle;
 230 }
 231
 232 wxPenStyle wxPen::GetStyle() const
 233 {
 234     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 235
 236     return M_PENDATA->m_style;
 237 }
 238
 239 int wxPen::GetWidth() const
 240 {
 241     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 242
 243     return M_PENDATA->m_width;
 244 }
 245
 246 wxColour &wxPen::GetColour() const
 247 {
 248     wxCHECK_MSG( Ok(), wxNullColour, wxT("invalid pen") );
 249
 250     return M_PENDATA->m_colour;
 251 }
 252
 253 wxBitmap *wxPen::GetStipple() const
 254 {
 255     wxCHECK_MSG( Ok(), NULL, wxT("invalid pen") );
 256
 257     return &(M_PENDATA->m_stipple);
 258 }
 259
 260 void* wxPen::GetPixPattern() const
 261 {
 262     wxCHECK_MSG( Ok(), NULL, wxT("invalid pen") );
 263
 264     return (void*)&(M_PENDATA->m_pixPattern);
 265 }
 266
 267
 268 wxGDIRefData *wxPen::CreateGDIRefData() const
 269 {
 270     return new wxPenRefData;
 271 }
 272
 273 wxGDIRefData *wxPen::CloneGDIRefData(const wxGDIRefData *data) const
 274 {
 275     return new wxPenRefData(*(wxPenRefData *)data);
 276 }