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 = 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 #if FUTURE_WXWIN_COMPATIBILITY_3_0
 114 wxPen::wxPen(const wxColour& colour, int width, int style)
 115 {
 116     m_refData = new wxPenRefData();
 117     M_PENDATA->m_width = width;
 118     M_PENDATA->m_style = (wxPenStyle)style;
 119     M_PENDATA->m_colour = colour;
 120 }
 121 #endif
 122
 123 wxPen::wxPen(const wxBitmap& stipple, int width)
 124 {
 125     wxCHECK_RET( stipple.Ok(), _T("invalid bitmap") );
 126     wxCHECK_RET( stipple.GetWidth() == 8 && stipple.GetHeight() == 8,
 127                   _T("stipple bitmap must be 8x8") );
 128
 129     m_refData = new wxPenRefData();
 130     M_PENDATA->m_width = width;
 131     M_PENDATA->m_style = wxPENSTYLE_STIPPLE;
 132     M_PENDATA->m_stipple = stipple;
 133     wxBitmapToPixPattern(stipple, &(M_PENDATA->m_pixPattern), NULL);
 134 }
 135
 136 bool wxPen::operator == (const wxPen& pen) const
 137 {
 138     if (m_refData == pen.m_refData) return true;
 139
 140     if (!m_refData || !pen.m_refData) return false;
 141
 142     return ( *(wxPenRefData*)m_refData == *(wxPenRefData*)pen.m_refData );
 143 }
 144
 145 bool wxPen::operator != (const wxPen& pen) const
 146 {
 147     return m_refData != pen.m_refData;
 148 }
 149
 150 void wxPen::SetColour(const wxColour &colour)
 151 {
 152     AllocExclusive();
 153     M_PENDATA->m_colour = colour;
 154 }
 155
 156 void wxPen::SetDashes(int number_of_dashes, const wxDash *dash)
 157 {
 158     AllocExclusive();
 159     M_PENDATA->m_countDashes = number_of_dashes;
 160     M_PENDATA->m_dash = (wxDash *)dash; /* TODO */
 161 }
 162
 163 void wxPen::SetColour(unsigned char red, unsigned char green, unsigned char blue)
 164 {
 165     AllocExclusive();
 166     M_PENDATA->m_colour.Set(red, green, blue);
 167 }
 168
 169 void wxPen::SetCap(wxPenCap capStyle)
 170 {
 171     AllocExclusive();
 172     M_PENDATA->m_capStyle = capStyle;
 173 }
 174
 175 void wxPen::SetJoin(wxPenJoin joinStyle)
 176 {
 177     AllocExclusive();
 178     M_PENDATA->m_joinStyle = joinStyle;
 179 }
 180
 181 void wxPen::SetStyle(wxPenStyle style)
 182 {
 183     AllocExclusive();
 184     M_PENDATA->m_style = style;
 185 }
 186
 187 void wxPen::SetStipple(const wxBitmap& stipple)
 188 {
 189     wxCHECK_RET( stipple.Ok(), _T("invalid bitmap") );
 190     wxCHECK_RET( stipple.GetWidth() == 8 && stipple.GetHeight() == 8,
 191                   _T("stipple bitmap must be 8x8") );
 192
 193     AllocExclusive();
 194     M_PENDATA->m_stipple = stipple;
 195     wxBitmapToPixPattern(stipple, &(M_PENDATA->m_pixPattern), NULL);
 196 }
 197
 198 void wxPen::SetWidth(int width)
 199 {
 200     AllocExclusive();
 201     M_PENDATA->m_width = width;
 202 }
 203
 204 int wxPen::GetDashes(wxDash **ptr) const
 205 {
 206     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 207
 208     *ptr = (wxDash*)M_PENDATA->m_dash;
 209     return M_PENDATA->m_countDashes;
 210 }
 211
 212 int wxPen::GetDashCount() const
 213 {
 214     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 215
 216     return (M_PENDATA->m_countDashes);
 217 }
 218
 219 wxDash* wxPen::GetDash() const
 220 {
 221     wxCHECK_MSG( Ok(), NULL, wxT("invalid pen") );
 222
 223     return (wxDash*)M_PENDATA->m_dash;
 224 }
 225
 226 wxPenCap wxPen::GetCap() const
 227 {
 228     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 229
 230     return M_PENDATA->m_capStyle;
 231 }
 232
 233 wxPenJoin wxPen::GetJoin() const
 234 {
 235     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 236
 237     return M_PENDATA->m_joinStyle;
 238 }
 239
 240 wxPenStyle wxPen::GetStyle() const
 241 {
 242     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 243
 244     return M_PENDATA->m_style;
 245 }
 246
 247 int wxPen::GetWidth() const
 248 {
 249     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 250
 251     return M_PENDATA->m_width;
 252 }
 253
 254 wxColour wxPen::GetColour() const
 255 {
 256     wxCHECK_MSG( Ok(), wxNullColour, wxT("invalid pen") );
 257
 258     return M_PENDATA->m_colour;
 259 }
 260
 261 wxBitmap *wxPen::GetStipple() const
 262 {
 263     wxCHECK_MSG( Ok(), NULL, wxT("invalid pen") );
 264
 265     return &(M_PENDATA->m_stipple);
 266 }
 267
 268 void* wxPen::GetPixPattern() const
 269 {
 270     wxCHECK_MSG( Ok(), NULL, wxT("invalid pen") );
 271
 272     return (void*)&(M_PENDATA->m_pixPattern);
 273 }
 274
 275
 276 wxGDIRefData *wxPen::CreateGDIRefData() const
 277 {
 278     return new wxPenRefData;
 279 }
 280
 281 wxGDIRefData *wxPen::CloneGDIRefData(const wxGDIRefData *data) const
 282 {
 283     return new wxPenRefData(*(wxPenRefData *)data);
 284 }