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 #endif
  22
  23 #include "wx/colour.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 bool wxPen::operator == (const wxPen& pen) const
 111 {
 112     return m_refData == pen.m_refData;
 113 }
 114
 115 bool wxPen::operator != (const wxPen& pen) const
 116 {
 117     return m_refData != pen.m_refData;
 118 }
 119
 120 void wxPen::SetColour(const wxColour &colour)
 121 {
 122     AllocExclusive();
 123     M_PENDATA->m_colour = colour;
 124 }
 125
 126 void wxPen::SetDashes(int number_of_dashes, const wxDash *dash)
 127 {
 128     AllocExclusive();
 129     M_PENDATA->m_countDashes = number_of_dashes;
 130     M_PENDATA->m_dash = (wxDash *)dash; /* TODO */
 131 }
 132
 133 void wxPen::SetColour(unsigned char red, unsigned char green, unsigned char blue)
 134 {
 135     AllocExclusive();
 136     M_PENDATA->m_colour.Set(red, green, blue);
 137 }
 138
 139 void wxPen::SetCap(int capStyle)
 140 {
 141     AllocExclusive();
 142     M_PENDATA->m_capStyle = capStyle;
 143 }
 144
 145 void wxPen::SetJoin(int joinStyle)
 146 {
 147     AllocExclusive();
 148     M_PENDATA->m_joinStyle = joinStyle;
 149 }
 150
 151 void wxPen::SetStyle(int style)
 152 {
 153     AllocExclusive();
 154     M_PENDATA->m_style = style;
 155 }
 156
 157 void wxPen::SetStipple(const wxBitmap& stipple)
 158 {
 159     wxCHECK_RET( stipple.Ok(), _T("invalid bitmap") );
 160     wxCHECK_RET( stipple.GetWidth() == 8 && stipple.GetHeight() == 8,
 161                   _T("stipple bitmap must be 8x8") );
 162
 163     AllocExclusive();
 164     M_PENDATA->m_stipple = stipple;
 165     wxBitmapToPixPattern(stipple, &(M_PENDATA->m_pixPattern), NULL);
 166 }
 167
 168 void wxPen::SetWidth(int width)
 169 {
 170     AllocExclusive();
 171     M_PENDATA->m_width = width;
 172 }
 173
 174 int wxPen::GetDashes(wxDash **ptr) const
 175 {
 176      *ptr = (M_PENDATA ? (wxDash*)M_PENDATA->m_dash : (wxDash*) NULL);
 177      return (M_PENDATA ? M_PENDATA->m_countDashes : 0);
 178 }
 179
 180 int wxPen::GetDashCount() const
 181 {
 182     return (M_PENDATA->m_countDashes);
 183 }
 184
 185 wxDash* wxPen::GetDash() const
 186 {
 187     return (wxDash*)M_PENDATA->m_dash;
 188 }
 189
 190 int wxPen::GetCap() const
 191 {
 192     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 193
 194     return M_PENDATA->m_capStyle;
 195 }
 196
 197 int wxPen::GetJoin() const
 198 {
 199     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 200
 201     return M_PENDATA->m_joinStyle;
 202 }
 203
 204 int wxPen::GetStyle() const
 205 {
 206     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 207
 208     return M_PENDATA->m_style;
 209 }
 210
 211 int wxPen::GetWidth() const
 212 {
 213     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 214
 215     return M_PENDATA->m_width;
 216 }
 217
 218 wxColour &wxPen::GetColour() const
 219 {
 220     wxCHECK_MSG( Ok(), wxNullColour, wxT("invalid pen") );
 221
 222     return M_PENDATA->m_colour;
 223 }
 224
 225 wxBitmap *wxPen::GetStipple() const
 226 {
 227     wxCHECK_MSG( Ok(), NULL, wxT("invalid pen") );
 228
 229     return &(M_PENDATA->m_stipple);
 230 }
 231
 232 void* wxPen::GetPixPattern() const
 233 {
 234     wxCHECK_MSG( Ok(), NULL, wxT("invalid pen") );
 235
 236     return (void*)&(M_PENDATA->m_pixPattern);
 237 }
 238
 239
 240 bool wxPen::Ok() const
 241 {
 242     return (m_refData != NULL);
 243 }
 244
 245 wxObjectRefData *wxPen::CreateRefData() const
 246 {
 247     return new wxPenRefData;
 248 }
 249
 250 wxObjectRefData *wxPen::CloneRefData(const wxObjectRefData *data) const
 251 {
 252     return new wxPenRefData(*(wxPenRefData *)data);
 253 }