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 != wxSTIPPLE || m_stipple.IsSameAs(data.m_stipple)) &&
  47                (m_style != wxUSER_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     int            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     int            m_joinStyle;
  60     int            m_capStyle;
  61     int            m_countDashes;
  62     wxDash        *m_dash;
  63 };
  64
  65 wxPenRefData::wxPenRefData()
  66 {
  67     m_width = 1;
  68     m_style = wxSOLID;
  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, int 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 wxBitmap& stipple, int width)
 114 {
 115     wxCHECK_RET( stipple.Ok(), _T("invalid bitmap") );
 116     wxCHECK_RET( stipple.GetWidth() == 8 && stipple.GetHeight() == 8,
 117                   _T("stipple bitmap must be 8x8") );
 118
 119     m_refData = new wxPenRefData();
 120     M_PENDATA->m_width = width;
 121     M_PENDATA->m_style = wxSTIPPLE;
 122     M_PENDATA->m_stipple = stipple;
 123     wxBitmapToPixPattern(stipple, &(M_PENDATA->m_pixPattern), NULL);
 124 }
 125
 126 bool wxPen::operator == (const wxPen& pen) const
 127 {
 128     if (m_refData == pen.m_refData) return true;
 129
 130     if (!m_refData || !pen.m_refData) return false;
 131
 132     return ( *(wxPenRefData*)m_refData == *(wxPenRefData*)pen.m_refData );
 133 }
 134
 135 bool wxPen::operator != (const wxPen& pen) const
 136 {
 137     return m_refData != pen.m_refData;
 138 }
 139
 140 void wxPen::SetColour(const wxColour &colour)
 141 {
 142     AllocExclusive();
 143     M_PENDATA->m_colour = colour;
 144 }
 145
 146 void wxPen::SetDashes(int number_of_dashes, const wxDash *dash)
 147 {
 148     AllocExclusive();
 149     M_PENDATA->m_countDashes = number_of_dashes;
 150     M_PENDATA->m_dash = (wxDash *)dash; /* TODO */
 151 }
 152
 153 void wxPen::SetColour(unsigned char red, unsigned char green, unsigned char blue)
 154 {
 155     AllocExclusive();
 156     M_PENDATA->m_colour.Set(red, green, blue);
 157 }
 158
 159 void wxPen::SetCap(int capStyle)
 160 {
 161     AllocExclusive();
 162     M_PENDATA->m_capStyle = capStyle;
 163 }
 164
 165 void wxPen::SetJoin(int joinStyle)
 166 {
 167     AllocExclusive();
 168     M_PENDATA->m_joinStyle = joinStyle;
 169 }
 170
 171 void wxPen::SetStyle(int style)
 172 {
 173     AllocExclusive();
 174     M_PENDATA->m_style = style;
 175 }
 176
 177 void wxPen::SetStipple(const wxBitmap& stipple)
 178 {
 179     wxCHECK_RET( stipple.Ok(), _T("invalid bitmap") );
 180     wxCHECK_RET( stipple.GetWidth() == 8 && stipple.GetHeight() == 8,
 181                   _T("stipple bitmap must be 8x8") );
 182
 183     AllocExclusive();
 184     M_PENDATA->m_stipple = stipple;
 185     wxBitmapToPixPattern(stipple, &(M_PENDATA->m_pixPattern), NULL);
 186 }
 187
 188 void wxPen::SetWidth(int width)
 189 {
 190     AllocExclusive();
 191     M_PENDATA->m_width = width;
 192 }
 193
 194 int wxPen::GetDashes(wxDash **ptr) const
 195 {
 196      *ptr = (M_PENDATA ? (wxDash*)M_PENDATA->m_dash : (wxDash*) NULL);
 197      return (M_PENDATA ? M_PENDATA->m_countDashes : 0);
 198 }
 199
 200 int wxPen::GetDashCount() const
 201 {
 202     return (M_PENDATA->m_countDashes);
 203 }
 204
 205 wxDash* wxPen::GetDash() const
 206 {
 207     return (wxDash*)M_PENDATA->m_dash;
 208 }
 209
 210 int wxPen::GetCap() const
 211 {
 212     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 213
 214     return M_PENDATA->m_capStyle;
 215 }
 216
 217 int wxPen::GetJoin() const
 218 {
 219     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 220
 221     return M_PENDATA->m_joinStyle;
 222 }
 223
 224 int wxPen::GetStyle() const
 225 {
 226     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 227
 228     return M_PENDATA->m_style;
 229 }
 230
 231 int wxPen::GetWidth() const
 232 {
 233     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 234
 235     return M_PENDATA->m_width;
 236 }
 237
 238 wxColour &wxPen::GetColour() const
 239 {
 240     wxCHECK_MSG( Ok(), wxNullColour, wxT("invalid pen") );
 241
 242     return M_PENDATA->m_colour;
 243 }
 244
 245 wxBitmap *wxPen::GetStipple() const
 246 {
 247     wxCHECK_MSG( Ok(), NULL, wxT("invalid pen") );
 248
 249     return &(M_PENDATA->m_stipple);
 250 }
 251
 252 void* wxPen::GetPixPattern() const
 253 {
 254     wxCHECK_MSG( Ok(), NULL, wxT("invalid pen") );
 255
 256     return (void*)&(M_PENDATA->m_pixPattern);
 257 }
 258
 259
 260 bool wxPen::IsOk() const
 261 {
 262     return (m_refData != NULL);
 263 }
 264
 265 wxObjectRefData *wxPen::CreateRefData() const
 266 {
 267     return new wxPenRefData;
 268 }
 269
 270 wxObjectRefData *wxPen::CloneRefData(const wxObjectRefData *data) const
 271 {
 272     return new wxPenRefData(*(wxPenRefData *)data);
 273 }