src/mgl/font.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mgl/font.cpp
   3 // Author:      Vaclav Slavik
   4 // Id:          $Id$
   5 // Copyright:   (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com)
   6 // Licence:     wxWindows licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 // ============================================================================
  10 // declarations
  11 // ============================================================================
  12
  13 // ----------------------------------------------------------------------------
  14 // headers
  15 // ----------------------------------------------------------------------------
  16
  17 // For compilers that support precompilation, includes "wx.h".
  18 #include "wx/wxprec.h"
  19
  20 #ifdef __BORLANDC__
  21     #pragma hdrstop
  22 #endif
  23
  24 #include "wx/font.h"
  25 #include "wx/fontutil.h"
  26 #include "wx/cmndata.h"
  27 #include "wx/utils.h"
  28 #include "wx/log.h"
  29 #include "wx/gdicmn.h"
  30 #include "wx/tokenzr.h"
  31 #include "wx/settings.h"
  32 #include "wx/mgl/private.h"
  33
  34 // ----------------------------------------------------------------------------
  35 // wxFontRefData
  36 // ----------------------------------------------------------------------------
  37
  38 class wxFontRefData : public wxObjectRefData
  39 {
  40 public:
  41     wxFontRefData(int size = wxDEFAULT,
  42                   int family = wxDEFAULT,
  43                   int style = wxDEFAULT,
  44                   int weight = wxDEFAULT,
  45                   bool underlined = FALSE,
  46                   const wxString& faceName = wxEmptyString,
  47                   wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
  48     wxFontRefData(const wxFontRefData& data);
  49     virtual ~wxFontRefData();
  50
  51 protected:
  52     // common part of all ctors
  53     void Init(int pointSize,
  54               int family,
  55               int style,
  56               int weight,
  57               bool underlined,
  58               const wxString& faceName,
  59               wxFontEncoding encoding);
  60
  61 private:
  62     int              m_pointSize;
  63     int              m_family,
  64                      m_style,
  65                      m_weight;
  66     bool             m_underlined;
  67     wxString         m_faceName;
  68     wxFontEncoding   m_encoding;
  69
  70     wxMGLFontLibrary *m_library;
  71     bool              m_valid;
  72
  73     wxNativeFontInfo  m_info;
  74
  75     friend class wxFont;
  76 };
  77
  78 // ============================================================================
  79 // implementation
  80 // ============================================================================
  81
  82 // ----------------------------------------------------------------------------
  83 // wxFontRefData
  84 // ----------------------------------------------------------------------------
  85
  86 void wxFontRefData::Init(int pointSize,
  87                          int family,
  88                          int style,
  89                          int weight,
  90                          bool underlined,
  91                          const wxString& faceName,
  92                          wxFontEncoding encoding)
  93 {
  94     if ( family == wxDEFAULT )
  95         m_family = wxSWISS;
  96     else
  97         m_family = family;
  98
  99     m_faceName = faceName;
 100
 101     if ( style == wxDEFAULT )
 102         m_style = wxNORMAL;
 103     else
 104         m_style = style;
 105
 106     if ( weight == wxDEFAULT )
 107         m_weight = wxNORMAL;
 108     else
 109         m_weight = weight;
 110
 111     if ( pointSize == wxDEFAULT )
 112         m_pointSize = 12;
 113     else
 114         m_pointSize = pointSize;
 115
 116     m_underlined = underlined;
 117     m_encoding = encoding;
 118
 119     m_library = NULL;
 120     m_valid = FALSE;
 121 }
 122
 123 wxFontRefData::wxFontRefData(const wxFontRefData& data)
 124 {
 125     Init(data.m_pointSize, data.m_family, data.m_style, data.m_weight,
 126          data.m_underlined, data.m_faceName, data.m_encoding);
 127
 128     m_library = data.m_library;
 129     m_valid = data.m_valid;
 130     if ( m_library )
 131         m_library->IncRef();
 132     wxLogTrace("mgl_font", "created fntrefdata %p, library is %p", this, m_library);
 133 }
 134
 135 wxFontRefData::wxFontRefData(int size, int family, int style,
 136                              int weight, bool underlined,
 137                              const wxString& faceName,
 138                              wxFontEncoding encoding)
 139 {
 140     Init(size, family, style, weight, underlined, faceName, encoding);
 141     wxLogTrace("mgl_font", "created fntrefdata %p, library is %p", this, m_library);
 142 }
 143
 144 wxFontRefData::~wxFontRefData()
 145 {
 146     wxLogTrace("mgl_font", "destructing fntrefdata %p, library is %p", this, m_library);
 147     if ( m_library )
 148         m_library->DecRef();
 149 }
 150
 151 // ----------------------------------------------------------------------------
 152 // wxFont
 153 // ----------------------------------------------------------------------------
 154
 155 IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)
 156
 157 bool wxFont::Create(const wxNativeFontInfo& info)
 158 {
 159     return Create(info.pointSize, info.family, info.style, info.weight,
 160                   info.underlined, info.faceName, info.encoding);
 161 }
 162
 163 bool wxFont::Create(int pointSize,
 164                     int family,
 165                     int style,
 166                     int weight,
 167                     bool underlined,
 168                     const wxString& face,
 169                     wxFontEncoding encoding)
 170 {
 171     m_refData = new wxFontRefData(pointSize, family, style, weight,
 172                                   underlined, face, encoding);
 173     return TRUE;
 174 }
 175
 176 struct font_t *wxFont::GetMGLfont_t(float scale, bool antialiased)
 177 {
 178     if ( !M_FONTDATA->m_valid )
 179     {
 180         wxMGLFontLibrary *old = M_FONTDATA->m_library;
 181         M_FONTDATA->m_library = wxTheFontsManager->GetFontLibrary(this);
 182         M_FONTDATA->m_library->IncRef();
 183         if ( old )
 184             old->DecRef();
 185     }
 186
 187     wxMGLFontInstance *instance =
 188         M_FONTDATA->m_library->GetFontInstance(this, scale, antialiased);
 189
 190     return instance->GetMGLfont_t();
 191 }
 192
 193 wxObjectRefData *wxFont::CreateRefData() const
 194 {
 195     return new wxFontRefData;
 196 }
 197
 198 wxObjectRefData *wxFont::CloneRefData(const wxObjectRefData *data) const
 199 {
 200     return new wxFontRefData(*(wxFontRefData *)data);
 201 }
 202
 203
 204 // ----------------------------------------------------------------------------
 205 // accessors
 206 // ----------------------------------------------------------------------------
 207
 208 int wxFont::GetPointSize() const
 209 {
 210     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 211
 212     return M_FONTDATA->m_pointSize;
 213 }
 214
 215 wxString wxFont::GetFaceName() const
 216 {
 217     wxCHECK_MSG( Ok(), wxEmptyString, wxT("invalid font") );
 218
 219     return M_FONTDATA->m_faceName;
 220 }
 221
 222 int wxFont::GetFamily() const
 223 {
 224     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 225
 226     return M_FONTDATA->m_family;
 227 }
 228
 229 int wxFont::GetStyle() const
 230 {
 231     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 232
 233     return M_FONTDATA->m_style;
 234 }
 235
 236 int wxFont::GetWeight() const
 237 {
 238     wxCHECK_MSG( Ok(), 0, wxT("invalid font") );
 239
 240     return M_FONTDATA->m_weight;
 241 }
 242
 243 bool wxFont::GetUnderlined() const
 244 {
 245     wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
 246
 247     return M_FONTDATA->m_underlined;
 248 }
 249
 250
 251 wxFontEncoding wxFont::GetEncoding() const
 252 {
 253     wxCHECK_MSG( Ok(), wxFONTENCODING_DEFAULT, wxT("invalid font") );
 254
 255     return M_FONTDATA->m_encoding;
 256 }
 257
 258 bool wxFont::IsFixedWidth() const
 259 {
 260     wxCHECK_MSG( Ok(), FALSE, wxT("invalid font") );
 261
 262     return (bool)(M_FONTDATA->m_library->GetFamily()->GetInfo()->isFixed);
 263 }
 264
 265 const wxNativeFontInfo *wxFont::GetNativeFontInfo() const
 266 {
 267     wxCHECK_MSG( Ok(), NULL, wxT("invalid font") );
 268
 269     M_FONTDATA->m_info.InitFromFont(*this);
 270
 271     return &(M_FONTDATA->m_info);
 272 }
 273
 274 // ----------------------------------------------------------------------------
 275 // change font attributes
 276 // ----------------------------------------------------------------------------
 277
 278 void wxFont::SetPointSize(int pointSize)
 279 {
 280     AllocExclusive();
 281
 282     M_FONTDATA->m_pointSize = pointSize;
 283     M_FONTDATA->m_valid = FALSE;
 284 }
 285
 286 void wxFont::SetFamily(int family)
 287 {
 288     AllocExclusive();
 289
 290     M_FONTDATA->m_family = family;
 291     M_FONTDATA->m_valid = FALSE;
 292 }
 293
 294 void wxFont::SetStyle(int style)
 295 {
 296     AllocExclusive();
 297
 298     M_FONTDATA->m_style = style;
 299     M_FONTDATA->m_valid = FALSE;
 300 }
 301
 302 void wxFont::SetWeight(int weight)
 303 {
 304     AllocExclusive();
 305
 306     M_FONTDATA->m_weight = weight;
 307     M_FONTDATA->m_valid = FALSE;
 308 }
 309
 310 void wxFont::SetFaceName(const wxString& faceName)
 311 {
 312     AllocExclusive();
 313
 314     M_FONTDATA->m_faceName = faceName;
 315     M_FONTDATA->m_valid = FALSE;
 316 }
 317
 318 void wxFont::SetUnderlined(bool underlined)
 319 {
 320     AllocExclusive();
 321
 322     M_FONTDATA->m_underlined = underlined;
 323 }
 324
 325 void wxFont::SetEncoding(wxFontEncoding encoding)
 326 {
 327     AllocExclusive();
 328
 329     M_FONTDATA->m_encoding = encoding;
 330     M_FONTDATA->m_valid = FALSE;
 331 }