src/mgl/font.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        font.cpp
   3 // Author:      Vaclav Slavik
   4 // Id:          $Id$
   5 // Copyright:   (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
   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     wxLogTrace("mgl_font", "created fntrefdata %p, library is %p", this, m_library);
 129 }
 130
 131 wxFontRefData::wxFontRefData(int size, int family, int style,
 132                              int weight, bool underlined,
 133                              const wxString& faceName,
 134                              wxFontEncoding encoding)
 135 {
 136     Init(size, family, style, weight, underlined, faceName, encoding);
 137     wxLogTrace("mgl_font", "created fntrefdata %p, library is %p", this, m_library);
 138 }
 139
 140 wxFontRefData::~wxFontRefData()
 141 {
 142     wxLogTrace("mgl_font", "destructing fntrefdata %p, library is %p", this, m_library);
 143     if ( m_library )
 144         m_library->DecRef();
 145 }
 146
 147 // ----------------------------------------------------------------------------
 148 // wxFont
 149 // ----------------------------------------------------------------------------
 150
 151 IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)
 152
 153 void wxFont::Init()
 154 {
 155     if (wxTheFontList)
 156         wxTheFontList->Append(this);
 157 }
 158
 159 bool wxFont::Create(const wxNativeFontInfo& info)
 160 {
 161     return Create(info.pointSize, info.family, info.style, info.weight,
 162                   info.underlined, info.faceName, info.encoding);
 163 }
 164
 165 bool wxFont::Create(int pointSize,
 166                     int family,
 167                     int style,
 168                     int weight,
 169                     bool underlined,
 170                     const wxString& face,
 171                     wxFontEncoding encoding)
 172 {
 173     m_refData = new wxFontRefData(pointSize, family, style, weight,
 174                                   underlined, face, encoding);
 175     return TRUE;
 176 }
 177
 178 struct font_t *wxFont::GetMGLfont_t(float scale, bool antialiased)
 179 {
 180     // FIXME_MGL -- no antialiasing for fonts smaller than certain treshold!
 181     if ( !M_FONTDATA->m_valid )
 182     {
 183         wxMGLFontLibrary *old = M_FONTDATA->m_library;
 184         M_FONTDATA->m_library = wxTheFontsManager->GetFontLibrary(this);
 185         M_FONTDATA->m_library->IncRef();
 186         if ( old )
 187             old->DecRef();
 188     }
 189
 190     wxMGLFontInstance *instance =
 191         M_FONTDATA->m_library->GetFontInstance(this, scale, antialiased);
 192
 193     return instance->GetMGLfont_t();
 194 }
 195
 196 void wxFont::Unshare()
 197 {
 198     if ( !m_refData )
 199     {
 200         m_refData = new wxFontRefData();
 201     }
 202     else
 203     {
 204         wxFontRefData* ref = new wxFontRefData(*(wxFontRefData*)m_refData);
 205         UnRef();
 206         m_refData = ref;
 207     }
 208 }
 209
 210 wxFont::~wxFont()
 211 {
 212     if (wxTheFontList)
 213         wxTheFontList->DeleteObject(this);
 214 }
 215
 216 // ----------------------------------------------------------------------------
 217 // accessors
 218 // ----------------------------------------------------------------------------
 219
 220 int wxFont::GetPointSize() const
 221 {
 222     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 223
 224     return M_FONTDATA->m_pointSize;
 225 }
 226
 227 wxString wxFont::GetFaceName() const
 228 {
 229     wxCHECK_MSG( Ok(), wxT(""), wxT("invalid font") );
 230
 231     return M_FONTDATA->m_faceName;
 232 }
 233
 234 int wxFont::GetFamily() const
 235 {
 236     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 237
 238     return M_FONTDATA->m_family;
 239 }
 240
 241 int wxFont::GetStyle() const
 242 {
 243     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 244
 245     return M_FONTDATA->m_style;
 246 }
 247
 248 int wxFont::GetWeight() const
 249 {
 250     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 251
 252     return M_FONTDATA->m_weight;
 253 }
 254
 255 bool wxFont::GetUnderlined() const
 256 {
 257     wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
 258
 259     return M_FONTDATA->m_underlined;
 260 }
 261
 262
 263 wxFontEncoding wxFont::GetEncoding() const
 264 {
 265     wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
 266
 267     return M_FONTDATA->m_encoding;
 268 }
 269
 270
 271 // ----------------------------------------------------------------------------
 272 // change font attributes
 273 // ----------------------------------------------------------------------------
 274
 275 void wxFont::SetPointSize(int pointSize)
 276 {
 277     Unshare();
 278
 279     M_FONTDATA->m_pointSize = pointSize;
 280     M_FONTDATA->m_valid = FALSE;
 281 }
 282
 283 void wxFont::SetFamily(int family)
 284 {
 285     Unshare();
 286
 287     M_FONTDATA->m_family = family;
 288     M_FONTDATA->m_valid = FALSE;
 289 }
 290
 291 void wxFont::SetStyle(int style)
 292 {
 293     Unshare();
 294
 295     M_FONTDATA->m_style = style;
 296     M_FONTDATA->m_valid = FALSE;
 297 }
 298
 299 void wxFont::SetWeight(int weight)
 300 {
 301     Unshare();
 302
 303     M_FONTDATA->m_weight = weight;
 304     M_FONTDATA->m_valid = FALSE;
 305 }
 306
 307 void wxFont::SetFaceName(const wxString& faceName)
 308 {
 309     Unshare();
 310
 311     M_FONTDATA->m_faceName = faceName;
 312     M_FONTDATA->m_valid = FALSE;
 313 }
 314
 315 void wxFont::SetUnderlined(bool underlined)
 316 {
 317     Unshare();
 318
 319     M_FONTDATA->m_underlined = underlined;
 320 }
 321
 322 void wxFont::SetEncoding(wxFontEncoding encoding)
 323 {
 324     Unshare();
 325
 326     M_FONTDATA->m_encoding = encoding;
 327     M_FONTDATA->m_valid = FALSE;
 328 }