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()
  83 {
  84     if ( wxThePenList )
  85         wxThePenList->AddPen(this);
  86 }
  87
  88 wxPen::wxPen(const wxColour &colour, int width, int style)
  89 {
  90     m_refData = new wxPenRefData();
  91     M_PENDATA->m_width = width;
  92     M_PENDATA->m_style = style;
  93     M_PENDATA->m_colour = colour;
  94
  95     if ( wxThePenList )
  96         wxThePenList->AddPen(this);
  97 }
  98
  99 wxPen::wxPen(const wxBitmap& stipple, int width)
 100 {
 101     wxCHECK_RET( stipple.Ok(), _T("invalid bitmap") );
 102     wxCHECK_RET( stipple.GetWidth() == 8 && stipple.GetHeight() == 8,
 103                   _T("stipple bitmap must be 8x8") );
 104
 105     m_refData = new wxPenRefData();
 106     M_PENDATA->m_width = width;
 107     M_PENDATA->m_style = wxSTIPPLE;
 108     M_PENDATA->m_stipple = stipple;
 109     wxBitmapToPixPattern(stipple, &(M_PENDATA->m_pixPattern), NULL);
 110
 111     if ( wxThePenList )
 112         wxThePenList->AddPen(this);
 113 }
 114
 115 wxPen::wxPen(const wxPen& pen)
 116 {
 117     Ref(pen);
 118     if ( wxThePenList )
 119         wxThePenList->AddPen(this);
 120 }
 121
 122 wxPen::~wxPen()
 123 {
 124     if ( wxThePenList )
 125         wxThePenList->RemovePen(this);
 126 }
 127
 128 wxPen& wxPen::operator = (const wxPen& pen)
 129 {
 130     if (*this == pen) return (*this);
 131     Ref(pen);
 132     return *this;
 133 }
 134
 135 bool wxPen::operator == (const wxPen& pen) const
 136 {
 137     return m_refData == pen.m_refData;
 138 }
 139
 140 bool wxPen::operator != (const wxPen& pen) const
 141 {
 142     return m_refData != pen.m_refData;
 143 }
 144
 145 void wxPen::SetColour(const wxColour &colour)
 146 {
 147     Unshare();
 148     M_PENDATA->m_colour = colour;
 149 }
 150
 151 void wxPen::SetDashes(int number_of_dashes, const wxDash *dash)
 152 {
 153     Unshare();
 154     M_PENDATA->m_countDashes = number_of_dashes;
 155     M_PENDATA->m_dash = (wxDash *)dash; /* TODO */
 156 }
 157
 158 void wxPen::SetColour(int red, int green, int blue)
 159 {
 160     Unshare();
 161     M_PENDATA->m_colour.Set(red, green, blue);
 162 }
 163
 164 void wxPen::SetCap(int capStyle)
 165 {
 166     Unshare();
 167     M_PENDATA->m_capStyle = capStyle;
 168 }
 169
 170 void wxPen::SetJoin(int joinStyle)
 171 {
 172     Unshare();
 173     M_PENDATA->m_joinStyle = joinStyle;
 174 }
 175
 176 void wxPen::SetStyle(int style)
 177 {
 178     Unshare();
 179     M_PENDATA->m_style = style;
 180 }
 181
 182 void wxPen::SetStipple(const wxBitmap& stipple)
 183 {
 184     wxCHECK_RET( stipple.Ok(), _T("invalid bitmap") );
 185     wxCHECK_RET( stipple.GetWidth() == 8 && stipple.GetHeight() == 8,
 186                   _T("stipple bitmap must be 8x8") );
 187
 188     Unshare();
 189     M_PENDATA->m_stipple = stipple;
 190     wxBitmapToPixPattern(stipple, &(M_PENDATA->m_pixPattern), NULL);
 191 }
 192
 193 void wxPen::SetWidth(int width)
 194 {
 195     Unshare();
 196     M_PENDATA->m_width = width;
 197 }
 198
 199 int wxPen::GetDashes(wxDash **ptr) const
 200 {
 201      *ptr = (M_PENDATA ? (wxDash*)M_PENDATA->m_dash : (wxDash*) NULL);
 202      return (M_PENDATA ? M_PENDATA->m_countDashes : 0);
 203 }
 204
 205 int wxPen::GetDashCount() const
 206 {
 207     return (M_PENDATA->m_countDashes);
 208 }
 209
 210 wxDash* wxPen::GetDash() const
 211 {
 212     return (wxDash*)M_PENDATA->m_dash;
 213 }
 214
 215 int wxPen::GetCap() const
 216 {
 217     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 218
 219     return M_PENDATA->m_capStyle;
 220 }
 221
 222 int wxPen::GetJoin() const
 223 {
 224     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 225
 226     return M_PENDATA->m_joinStyle;
 227 }
 228
 229 int wxPen::GetStyle() const
 230 {
 231     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 232
 233     return M_PENDATA->m_style;
 234 }
 235
 236 int wxPen::GetWidth() const
 237 {
 238     wxCHECK_MSG( Ok(), -1, wxT("invalid pen") );
 239
 240     return M_PENDATA->m_width;
 241 }
 242
 243 wxColour &wxPen::GetColour() const
 244 {
 245     wxCHECK_MSG( Ok(), wxNullColour, wxT("invalid pen") );
 246
 247     return M_PENDATA->m_colour;
 248 }
 249
 250 wxBitmap *wxPen::GetStipple() const
 251 {
 252     wxCHECK_MSG( Ok(), NULL, wxT("invalid pen") );
 253
 254     return &(M_PENDATA->m_stipple);
 255 }
 256
 257 void* wxPen::GetPixPattern() const
 258 {
 259     wxCHECK_MSG( Ok(), NULL, wxT("invalid pen") );
 260
 261     return (void*)&(M_PENDATA->m_pixPattern);
 262 }
 263
 264
 265 bool wxPen::Ok() const
 266 {
 267     return (m_refData != NULL);
 268 }
 269
 270 void wxPen::Unshare()
 271 {
 272     if (!m_refData)
 273     {
 274         m_refData = new wxPenRefData();
 275     }
 276     else
 277     {
 278         wxPenRefData* ref = new wxPenRefData( *(wxPenRefData*)m_refData );
 279         UnRef();
 280         m_refData = ref;
 281     }
 282 }
 283