src/mgl/font.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        font.cpp
   3 // Author:      Vaclav Slavik
   4 // Id:          $Id$
   5 // Copyright:   (c) 2001, Vaclav Slavik
   6 // Licence:     wxWindows licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 // ============================================================================
  10 // declarations
  11 // ============================================================================
  12
  13 // ----------------------------------------------------------------------------
  14 // headers
  15 // ----------------------------------------------------------------------------
  16
  17 #ifdef __GNUG__
  18     #pragma implementation "font.h"
  19 #endif
  20
  21 #include "wx/font.h"
  22 #include "wx/fontutil.h"
  23 #include "wx/cmndata.h"
  24 #include "wx/utils.h"
  25 #include "wx/log.h"
  26 #include "wx/gdicmn.h"
  27 #include "wx/tokenzr.h"
  28 #include "wx/settings.h"
  29
  30 #include <strings.h>
  31
  32 // ----------------------------------------------------------------------------
  33 // wxFontRefData
  34 // ----------------------------------------------------------------------------
  35
  36 class wxFontRefData : public wxObjectRefData
  37 {
  38 public:
  39     wxFontRefData(int size = wxDEFAULT,
  40                   int family = wxDEFAULT,
  41                   int style = wxDEFAULT,
  42                   int weight = wxDEFAULT,
  43                   bool underlined = FALSE,
  44                   const wxString& faceName = wxEmptyString,
  45                   wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
  46     wxFontRefData(const wxFontRefData& data);
  47     virtual ~wxFontRefData();
  48
  49 protected:
  50     // common part of all ctors
  51     void Init(int pointSize,
  52               int family,
  53               int style,
  54               int weight,
  55               bool underlined,
  56               const wxString& faceName,
  57               wxFontEncoding encoding);
  58
  59 private:
  60     int              m_pointSize;
  61     int              m_family,
  62                      m_style,
  63                      m_weight;
  64     bool             m_underlined;
  65     wxString         m_faceName;
  66     wxFontEncoding   m_encoding;
  67
  68     wxMGLFontLibrary *m_library;
  69     bool              m_valid;
  70
  71     friend class wxFont;
  72 };
  73
  74 // ============================================================================
  75 // implementation
  76 // ============================================================================
  77
  78 // ----------------------------------------------------------------------------
  79 // wxFontRefData
  80 // ----------------------------------------------------------------------------
  81
  82 void wxFontRefData::Init(int pointSize,
  83                          int family,
  84                          int style,
  85                          int weight,
  86                          bool underlined,
  87                          const wxString& faceName,
  88                          wxFontEncoding encoding)
  89 {
  90     if ( family == wxDEFAULT )
  91         m_family = wxSWISS;
  92     else
  93         m_family = family;
  94
  95     m_faceName = faceName;
  96
  97     if ( style == wxDEFAULT )
  98         m_style = wxNORMAL;
  99     else
 100         m_style = style;
 101
 102     if ( weight == wxDEFAULT )
 103         m_weight = wxNORMAL;
 104     else
 105         m_weight = weight;
 106
 107     if ( pointSize == wxDEFAULT )
 108         m_pointSize = 12;
 109     else
 110         m_pointSize = pointSize;
 111
 112     m_underlined = underlined;
 113     m_encoding = encoding;
 114
 115     m_library = NULL;
 116     m_valid = FALSE;
 117 }
 118
 119 wxFontRefData::wxFontRefData(const wxFontRefData& data)
 120 {
 121     Init(data.m_pointSize, data.m_family, data.m_style, data.m_weight,
 122          data.m_underlined, data.m_faceName, data.m_encoding);
 123
 124     m_library = data.m_library;
 125     m_valid = data.m_valid;
 126     if ( m_library )
 127         m_library->IncRef();
 128 }
 129
 130 wxFontRefData::wxFontRefData(int size, int family, int style,
 131                              int weight, bool underlined,
 132                              const wxString& faceName,
 133                              wxFontEncoding encoding)
 134 {
 135     Init(size, family, style, weight, underlined, faceName, encoding);
 136 }
 137
 138 wxFontRefData::~wxFontRefData()
 139 {
 140     if ( m_library )
 141         m_library->DecRef();
 142 }
 143
 144 // ----------------------------------------------------------------------------
 145 // wxFont
 146 // ----------------------------------------------------------------------------
 147
 148 IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)
 149
 150 void wxFont::Init()
 151 {
 152     if (wxTheFontList)
 153         wxTheFontList->Append(this);
 154 }
 155
 156 bool wxFont::Create(const wxNativeFontInfo& info)
 157 {
 158     return Create(info.pointSize, info.family, info.style, info.weight,
 159                   info.underlined, info.faceName, info.encoding);
 160 }
 161
 162 bool wxFont::Create(int pointSize,
 163                     int family,
 164                     int style,
 165                     int weight,
 166                     bool underlined,
 167                     const wxString& face,
 168                     wxFontEncoding encoding)
 169 {
 170     m_refData = new wxFontRefData(pointSize, family, style, weight,
 171                                   underlined, face, encoding);
 172     return TRUE;
 173 }
 174
 175 struct font_t *wxFont::GetMGLfont_t(float scale, bool antialiased)
 176 {
 177     if ( !M_FONTDATA->m_valid )
 178     {
 179         wxMGLFontLibrary *old = M_FONTDATA->m_library;
 180         M_FONTDATA->m_library = wxTheFontsManager->GetFontLibrary(this);
 181         M_FONTDATA->m_library->IncRef();
 182         if ( old )
 183             old->DecRef();
 184     }
 185
 186     wxMGLFontInstance *instance =
 187         M_FONTDATA->m_library->GetFontInstance(this, scale, antialiased);
 188
 189     return instance->GetMGLfont_t();
 190 }
 191
 192 void wxFont::Unshare()
 193 {
 194     if ( !m_refData )
 195     {
 196         m_refData = new wxFontRefData();
 197     }
 198     else
 199     {
 200         wxFontRefData* ref = new wxFontRefData(*(wxFontRefData*)m_refData);
 201         UnRef();
 202         m_refData = ref;
 203     }
 204 }
 205
 206 wxFont::~wxFont()
 207 {
 208     if (wxTheFontList)
 209         wxTheFontList->DeleteObject(this);
 210 }
 211
 212 // ----------------------------------------------------------------------------
 213 // accessors
 214 // ----------------------------------------------------------------------------
 215
 216 int wxFont::GetPointSize() const
 217 {
 218     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 219
 220     return M_FONTDATA->m_pointSize;
 221 }
 222
 223 wxString wxFont::GetFaceName() const
 224 {
 225     wxCHECK_MSG( Ok(), wxT(""), wxT("invalid font") );
 226
 227     return M_FONTDATA->m_faceName;
 228 }
 229
 230 int wxFont::GetFamily() const
 231 {
 232     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 233
 234     return M_FONTDATA->m_family;
 235 }
 236
 237 int wxFont::GetStyle() const
 238 {
 239     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 240
 241     return M_FONTDATA->m_style;
 242 }
 243
 244 int wxFont::GetWeight() const
 245 {
 246     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 247
 248     return M_FONTDATA->m_weight;
 249 }
 250
 251 bool wxFont::GetUnderlined() const
 252 {
 253     wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
 254
 255     return M_FONTDATA->m_underlined;
 256 }
 257
 258
 259 wxFontEncoding wxFont::GetEncoding() const
 260 {
 261     wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
 262
 263     return M_FONTDATA->m_encoding;
 264 }
 265
 266
 267 // ----------------------------------------------------------------------------
 268 // change font attributes
 269 // ----------------------------------------------------------------------------
 270
 271 void wxFont::SetPointSize(int pointSize)
 272 {
 273     Unshare();
 274
 275     M_FONTDATA->m_pointSize = pointSize;
 276     M_FONTDATA->m_valid = FALSE;
 277 }
 278
 279 void wxFont::SetFamily(int family)
 280 {
 281     Unshare();
 282
 283     M_FONTDATA->m_family = family;
 284     M_FONTDATA->m_valid = FALSE;
 285 }
 286
 287 void wxFont::SetStyle(int style)
 288 {
 289     Unshare();
 290
 291     M_FONTDATA->m_style = style;
 292     M_FONTDATA->m_valid = FALSE;
 293 }
 294
 295 void wxFont::SetWeight(int weight)
 296 {
 297     Unshare();
 298
 299     M_FONTDATA->m_weight = weight;
 300     M_FONTDATA->m_valid = FALSE;
 301 }
 302
 303 void wxFont::SetFaceName(const wxString& faceName)
 304 {
 305     Unshare();
 306
 307     M_FONTDATA->m_faceName = faceName;
 308     M_FONTDATA->m_valid = FALSE;
 309 }
 310
 311 void wxFont::SetUnderlined(bool underlined)
 312 {
 313     Unshare();
 314
 315     M_FONTDATA->m_underlined = underlined;
 316 }
 317
 318 void wxFont::SetEncoding(wxFontEncoding encoding)
 319 {
 320     Unshare();
 321
 322     M_FONTDATA->m_encoding = encoding;
 323     M_FONTDATA->m_valid = FALSE;
 324 }