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 // For compilers that support precompilation, includes "wx.h".
  22 #include "wx/wxprec.h"
  23
  24 #ifdef __BORLANDC__
  25     #pragma hdrstop
  26 #endif
  27
  28 #include "wx/font.h"
  29 #include "wx/fontutil.h"
  30 #include "wx/cmndata.h"
  31 #include "wx/utils.h"
  32 #include "wx/log.h"
  33 #include "wx/gdicmn.h"
  34 #include "wx/tokenzr.h"
  35 #include "wx/settings.h"
  36 #include "wx/mgl/private.h"
  37
  38 // ----------------------------------------------------------------------------
  39 // wxFontRefData
  40 // ----------------------------------------------------------------------------
  41
  42 class wxFontRefData : public wxObjectRefData
  43 {
  44 public:
  45     wxFontRefData(int size = wxDEFAULT,
  46                   int family = wxDEFAULT,
  47                   int style = wxDEFAULT,
  48                   int weight = wxDEFAULT,
  49                   bool underlined = FALSE,
  50                   const wxString& faceName = wxEmptyString,
  51                   wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
  52     wxFontRefData(const wxFontRefData& data);
  53     virtual ~wxFontRefData();
  54
  55 protected:
  56     // common part of all ctors
  57     void Init(int pointSize,
  58               int family,
  59               int style,
  60               int weight,
  61               bool underlined,
  62               const wxString& faceName,
  63               wxFontEncoding encoding);
  64
  65 private:
  66     int              m_pointSize;
  67     int              m_family,
  68                      m_style,
  69                      m_weight;
  70     bool             m_underlined;
  71     wxString         m_faceName;
  72     wxFontEncoding   m_encoding;
  73
  74     wxMGLFontLibrary *m_library;
  75     bool              m_valid;
  76
  77     friend class wxFont;
  78 };
  79
  80 // ============================================================================
  81 // implementation
  82 // ============================================================================
  83
  84 // ----------------------------------------------------------------------------
  85 // wxFontRefData
  86 // ----------------------------------------------------------------------------
  87
  88 void wxFontRefData::Init(int pointSize,
  89                          int family,
  90                          int style,
  91                          int weight,
  92                          bool underlined,
  93                          const wxString& faceName,
  94                          wxFontEncoding encoding)
  95 {
  96     if ( family == wxDEFAULT )
  97         m_family = wxSWISS;
  98     else
  99         m_family = family;
 100
 101     m_faceName = faceName;
 102
 103     if ( style == wxDEFAULT )
 104         m_style = wxNORMAL;
 105     else
 106         m_style = style;
 107
 108     if ( weight == wxDEFAULT )
 109         m_weight = wxNORMAL;
 110     else
 111         m_weight = weight;
 112
 113     if ( pointSize == wxDEFAULT )
 114         m_pointSize = 12;
 115     else
 116         m_pointSize = pointSize;
 117
 118     m_underlined = underlined;
 119     m_encoding = encoding;
 120
 121     m_library = NULL;
 122     m_valid = FALSE;
 123 }
 124
 125 wxFontRefData::wxFontRefData(const wxFontRefData& data)
 126 {
 127     Init(data.m_pointSize, data.m_family, data.m_style, data.m_weight,
 128          data.m_underlined, data.m_faceName, data.m_encoding);
 129
 130     m_library = data.m_library;
 131     m_valid = data.m_valid;
 132     if ( m_library )
 133         m_library->IncRef();
 134     wxLogTrace("mgl_font", "created fntrefdata %p, library is %p", this, m_library);
 135 }
 136
 137 wxFontRefData::wxFontRefData(int size, int family, int style,
 138                              int weight, bool underlined,
 139                              const wxString& faceName,
 140                              wxFontEncoding encoding)
 141 {
 142     Init(size, family, style, weight, underlined, faceName, encoding);
 143     wxLogTrace("mgl_font", "created fntrefdata %p, library is %p", this, m_library);
 144 }
 145
 146 wxFontRefData::~wxFontRefData()
 147 {
 148     wxLogTrace("mgl_font", "destructing fntrefdata %p, library is %p", this, m_library);
 149     if ( m_library )
 150         m_library->DecRef();
 151 }
 152
 153 // ----------------------------------------------------------------------------
 154 // wxFont
 155 // ----------------------------------------------------------------------------
 156
 157 IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)
 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     if ( !M_FONTDATA->m_valid )
 181     {
 182         wxMGLFontLibrary *old = M_FONTDATA->m_library;
 183         M_FONTDATA->m_library = wxTheFontsManager->GetFontLibrary(this);
 184         M_FONTDATA->m_library->IncRef();
 185         if ( old )
 186             old->DecRef();
 187     }
 188
 189     wxMGLFontInstance *instance =
 190         M_FONTDATA->m_library->GetFontInstance(this, scale, antialiased);
 191
 192     return instance->GetMGLfont_t();
 193 }
 194
 195 void wxFont::Unshare()
 196 {
 197     if ( !m_refData )
 198     {
 199         m_refData = new wxFontRefData();
 200     }
 201     else
 202     {
 203         wxFontRefData* ref = new wxFontRefData(*(wxFontRefData*)m_refData);
 204         UnRef();
 205         m_refData = ref;
 206     }
 207 }
 208
 209 // ----------------------------------------------------------------------------
 210 // accessors
 211 // ----------------------------------------------------------------------------
 212
 213 int wxFont::GetPointSize() const
 214 {
 215     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 216
 217     return M_FONTDATA->m_pointSize;
 218 }
 219
 220 wxString wxFont::GetFaceName() const
 221 {
 222     wxCHECK_MSG( Ok(), wxT(""), wxT("invalid font") );
 223
 224     return M_FONTDATA->m_faceName;
 225 }
 226
 227 int wxFont::GetFamily() const
 228 {
 229     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 230
 231     return M_FONTDATA->m_family;
 232 }
 233
 234 int wxFont::GetStyle() const
 235 {
 236     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 237
 238     return M_FONTDATA->m_style;
 239 }
 240
 241 int wxFont::GetWeight() const
 242 {
 243     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 244
 245     return M_FONTDATA->m_weight;
 246 }
 247
 248 bool wxFont::GetUnderlined() const
 249 {
 250     wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
 251
 252     return M_FONTDATA->m_underlined;
 253 }
 254
 255
 256 wxFontEncoding wxFont::GetEncoding() const
 257 {
 258     wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
 259
 260     return M_FONTDATA->m_encoding;
 261 }
 262
 263 bool wxFont::IsFixedWidth() const
 264 {
 265     wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
 266
 267     return (bool)(M_FONTDATA->m_library->GetFamily()->GetInfo()->isFixed);
 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 }