| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/common/fontmgrcmn.cpp |
| 3 | // Purpose: font management for ports that don't have their own |
| 4 | // Author: Vaclav Slavik |
| 5 | // Created: 2006-11-18 |
| 6 | // RCS-ID: $Id$ |
| 7 | // Copyright: (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com) |
| 8 | // (c) 2006 REA Elektronik GmbH |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // For compilers that support precompilation, includes "wx.h". |
| 13 | #include "wx/wxprec.h" |
| 14 | |
| 15 | #ifdef __BORLANDC__ |
| 16 | #pragma hdrstop |
| 17 | #endif |
| 18 | |
| 19 | #include "wx/private/fontmgr.h" |
| 20 | |
| 21 | #include "wx/listimpl.cpp" |
| 22 | #include "wx/hashmap.h" |
| 23 | |
| 24 | WX_DECLARE_LIST(wxFontInstance, wxFontInstanceList); |
| 25 | WX_DEFINE_LIST(wxFontInstanceList) |
| 26 | WX_DEFINE_LIST(wxFontBundleList) |
| 27 | |
| 28 | WX_DECLARE_HASH_MAP(wxString, wxFontBundle*, |
| 29 | wxStringHash, wxStringEqual, |
| 30 | wxFontBundleHashBase); |
| 31 | // in STL build, hash class is typedef to a template, so it can't be forward |
| 32 | // declared, as we do; solve it by having a dummy class: |
| 33 | class wxFontBundleHash : public wxFontBundleHashBase |
| 34 | { |
| 35 | }; |
| 36 | |
| 37 | // ============================================================================ |
| 38 | // implementation |
| 39 | // ============================================================================ |
| 40 | |
| 41 | // ---------------------------------------------------------------------------- |
| 42 | // wxFontFaceBase |
| 43 | // ---------------------------------------------------------------------------- |
| 44 | |
| 45 | wxFontFaceBase::wxFontFaceBase() |
| 46 | : m_refCnt(0) |
| 47 | { |
| 48 | m_instances = new wxFontInstanceList; |
| 49 | m_instances->DeleteContents(true); |
| 50 | } |
| 51 | |
| 52 | wxFontFaceBase::~wxFontFaceBase() |
| 53 | { |
| 54 | delete m_instances; |
| 55 | } |
| 56 | |
| 57 | void wxFontFaceBase::Acquire() |
| 58 | { |
| 59 | m_refCnt++; |
| 60 | } |
| 61 | |
| 62 | void wxFontFaceBase::Release() |
| 63 | { |
| 64 | if ( --m_refCnt == 0 ) |
| 65 | { |
| 66 | m_instances->Clear(); |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | wxFontInstance *wxFontFaceBase::GetFontInstance(float ptSize, bool aa) |
| 71 | { |
| 72 | wxASSERT_MSG( m_refCnt > 0, wxT("font library not loaded!") ); |
| 73 | |
| 74 | for ( wxFontInstanceList::const_iterator i = m_instances->begin(); |
| 75 | i != m_instances->end(); ++i ) |
| 76 | { |
| 77 | if ( (*i)->GetPointSize() == ptSize && (*i)->IsAntiAliased() == aa ) |
| 78 | return *i; |
| 79 | } |
| 80 | |
| 81 | wxFontInstance *i = CreateFontInstance(ptSize, aa); |
| 82 | m_instances->Append(i); |
| 83 | return i; |
| 84 | } |
| 85 | |
| 86 | // ---------------------------------------------------------------------------- |
| 87 | // wxFontBundleBase |
| 88 | // ---------------------------------------------------------------------------- |
| 89 | |
| 90 | wxFontBundleBase::wxFontBundleBase() |
| 91 | { |
| 92 | for (int i = 0; i < FaceType_Max; i++) |
| 93 | m_faces[i] = NULL; |
| 94 | } |
| 95 | |
| 96 | wxFontBundleBase::~wxFontBundleBase() |
| 97 | { |
| 98 | for (int i = 0; i < FaceType_Max; i++) |
| 99 | delete m_faces[i]; |
| 100 | } |
| 101 | |
| 102 | wxFontFace *wxFontBundleBase::GetFace(FaceType type) const |
| 103 | { |
| 104 | wxFontFace *f = m_faces[type]; |
| 105 | |
| 106 | wxCHECK_MSG( f, NULL, wxT("no such face in font bundle") ); |
| 107 | |
| 108 | f->Acquire(); |
| 109 | |
| 110 | return f; |
| 111 | } |
| 112 | |
| 113 | wxFontFace * |
| 114 | wxFontBundleBase::GetFaceForFont(const wxFontMgrFontRefData& font) const |
| 115 | { |
| 116 | wxASSERT_MSG( font.GetFaceName().empty() || |
| 117 | GetName().CmpNoCase(font.GetFaceName()) == 0, |
| 118 | wxT("calling GetFaceForFont for incompatible font") ); |
| 119 | |
| 120 | int type = FaceType_Regular; |
| 121 | |
| 122 | if ( font.GetWeight() == wxBOLD ) |
| 123 | type |= FaceType_Bold; |
| 124 | |
| 125 | // FIXME -- this should read "if ( font->GetStyle() == wxITALIC )", |
| 126 | // but since MGL neither DFB supports slant, we try to display it with |
| 127 | // italic face (better than nothing...) |
| 128 | if ( font.GetStyle() == wxITALIC || font.GetStyle() == wxSLANT ) |
| 129 | { |
| 130 | if ( HasFace((FaceType)(type | FaceType_Italic)) ) |
| 131 | type |= FaceType_Italic; |
| 132 | } |
| 133 | |
| 134 | if ( !HasFace((FaceType)type) ) |
| 135 | { |
| 136 | // if we can't get the exact font requested, substitute it with |
| 137 | // some other variant: |
| 138 | for (int i = 0; i < FaceType_Max; i++) |
| 139 | { |
| 140 | if ( HasFace((FaceType)i) ) |
| 141 | return GetFace((FaceType)i); |
| 142 | } |
| 143 | |
| 144 | wxFAIL_MSG( wxT("no face") ); |
| 145 | return NULL; |
| 146 | } |
| 147 | |
| 148 | return GetFace((FaceType)type); |
| 149 | } |
| 150 | |
| 151 | // ---------------------------------------------------------------------------- |
| 152 | // wxFontsManagerBase |
| 153 | // ---------------------------------------------------------------------------- |
| 154 | |
| 155 | wxFontsManager *wxFontsManagerBase::ms_instance = NULL; |
| 156 | |
| 157 | wxFontsManagerBase::wxFontsManagerBase() |
| 158 | { |
| 159 | m_hash = new wxFontBundleHash(); |
| 160 | m_list = new wxFontBundleList; |
| 161 | m_list->DeleteContents(true); |
| 162 | } |
| 163 | |
| 164 | wxFontsManagerBase::~wxFontsManagerBase() |
| 165 | { |
| 166 | delete m_hash; |
| 167 | delete m_list; |
| 168 | } |
| 169 | |
| 170 | /* static */ |
| 171 | wxFontsManager *wxFontsManagerBase::Get() |
| 172 | { |
| 173 | if ( !ms_instance ) |
| 174 | ms_instance = new wxFontsManager(); |
| 175 | return ms_instance; |
| 176 | } |
| 177 | |
| 178 | /* static */ |
| 179 | void wxFontsManagerBase::CleanUp() |
| 180 | { |
| 181 | wxDELETE(ms_instance); |
| 182 | } |
| 183 | |
| 184 | wxFontBundle *wxFontsManagerBase::GetBundle(const wxString& name) const |
| 185 | { |
| 186 | return (*m_hash)[name.Lower()]; |
| 187 | } |
| 188 | |
| 189 | wxFontBundle * |
| 190 | wxFontsManagerBase::GetBundleForFont(const wxFontMgrFontRefData& font) const |
| 191 | { |
| 192 | wxFontBundle *bundle = NULL; |
| 193 | |
| 194 | wxString facename = font.GetFaceName(); |
| 195 | if ( !facename.empty() ) |
| 196 | bundle = GetBundle(facename); |
| 197 | |
| 198 | if ( !bundle ) |
| 199 | { |
| 200 | facename = GetDefaultFacename((wxFontFamily)font.GetFamily()); |
| 201 | if ( !facename.empty() ) |
| 202 | bundle = GetBundle(facename); |
| 203 | } |
| 204 | |
| 205 | if ( !bundle ) |
| 206 | { |
| 207 | if ( m_list->GetFirst() ) |
| 208 | bundle = m_list->GetFirst()->GetData(); |
| 209 | else |
| 210 | wxFAIL_MSG(wxT("Fatal error, no fonts available!")); |
| 211 | } |
| 212 | |
| 213 | return bundle; |
| 214 | } |
| 215 | |
| 216 | void wxFontsManagerBase::AddBundle(wxFontBundle *bundle) |
| 217 | { |
| 218 | (*m_hash)[bundle->GetName().Lower()] = bundle; |
| 219 | m_list->Append(bundle); |
| 220 | } |
| 221 | |
| 222 | |
| 223 | // ---------------------------------------------------------------------------- |
| 224 | // wxFontMgrFontRefData |
| 225 | // ---------------------------------------------------------------------------- |
| 226 | |
| 227 | wxFontMgrFontRefData::wxFontMgrFontRefData(int size, |
| 228 | wxFontFamily family, |
| 229 | wxFontStyle style, |
| 230 | wxFontWeight weight, |
| 231 | bool underlined, |
| 232 | const wxString& faceName, |
| 233 | wxFontEncoding encoding) |
| 234 | { |
| 235 | if ( family == wxFONTFAMILY_DEFAULT ) |
| 236 | family = wxFONTFAMILY_SWISS; |
| 237 | if ( size == wxDEFAULT ) |
| 238 | size = 12; |
| 239 | |
| 240 | m_info.family = (wxFontFamily)family; |
| 241 | m_info.faceName = faceName; |
| 242 | m_info.style = (wxFontStyle)style; |
| 243 | m_info.weight = (wxFontWeight)weight; |
| 244 | m_info.pointSize = size; |
| 245 | m_info.underlined = underlined; |
| 246 | m_info.encoding = encoding; |
| 247 | |
| 248 | m_fontFace = NULL; |
| 249 | m_fontBundle = NULL; |
| 250 | m_fontValid = false; |
| 251 | } |
| 252 | |
| 253 | wxFontMgrFontRefData::wxFontMgrFontRefData(const wxFontMgrFontRefData& data) |
| 254 | { |
| 255 | m_info = data.m_info; |
| 256 | |
| 257 | m_fontFace = data.m_fontFace; |
| 258 | m_fontBundle = data.m_fontBundle; |
| 259 | m_fontValid = data.m_fontValid; |
| 260 | if ( m_fontFace ) |
| 261 | m_fontFace->Acquire(); |
| 262 | } |
| 263 | |
| 264 | wxFontMgrFontRefData::~wxFontMgrFontRefData() |
| 265 | { |
| 266 | if ( m_fontFace ) |
| 267 | m_fontFace->Release(); |
| 268 | } |
| 269 | |
| 270 | wxFontBundle *wxFontMgrFontRefData::GetFontBundle() const |
| 271 | { |
| 272 | wxConstCast(this, wxFontMgrFontRefData)->EnsureValidFont(); |
| 273 | return m_fontBundle; |
| 274 | } |
| 275 | |
| 276 | wxFontInstance * |
| 277 | wxFontMgrFontRefData::GetFontInstance(float scale, bool antialiased) const |
| 278 | { |
| 279 | wxConstCast(this, wxFontMgrFontRefData)->EnsureValidFont(); |
| 280 | return m_fontFace->GetFontInstance(m_info.pointSize * scale, |
| 281 | antialiased); |
| 282 | } |
| 283 | |
| 284 | void wxFontMgrFontRefData::SetPointSize(int pointSize) |
| 285 | { |
| 286 | m_info.pointSize = pointSize; |
| 287 | m_fontValid = false; |
| 288 | } |
| 289 | |
| 290 | void wxFontMgrFontRefData::SetFamily(wxFontFamily family) |
| 291 | { |
| 292 | m_info.family = family; |
| 293 | m_fontValid = false; |
| 294 | } |
| 295 | |
| 296 | void wxFontMgrFontRefData::SetStyle(wxFontStyle style) |
| 297 | { |
| 298 | m_info.style = style; |
| 299 | m_fontValid = false; |
| 300 | } |
| 301 | |
| 302 | void wxFontMgrFontRefData::SetWeight(wxFontWeight weight) |
| 303 | { |
| 304 | m_info.weight = weight; |
| 305 | m_fontValid = false; |
| 306 | } |
| 307 | |
| 308 | void wxFontMgrFontRefData::SetFaceName(const wxString& faceName) |
| 309 | { |
| 310 | m_info.faceName = faceName; |
| 311 | m_fontValid = false; |
| 312 | } |
| 313 | |
| 314 | void wxFontMgrFontRefData::SetUnderlined(bool underlined) |
| 315 | { |
| 316 | m_info.underlined = underlined; |
| 317 | m_fontValid = false; |
| 318 | } |
| 319 | |
| 320 | void wxFontMgrFontRefData::SetEncoding(wxFontEncoding encoding) |
| 321 | { |
| 322 | m_info.encoding = encoding; |
| 323 | m_fontValid = false; |
| 324 | } |
| 325 | |
| 326 | void wxFontMgrFontRefData::EnsureValidFont() |
| 327 | { |
| 328 | if ( !m_fontValid ) |
| 329 | { |
| 330 | wxFontFace *old = m_fontFace; |
| 331 | |
| 332 | m_fontBundle = wxFontsManager::Get()->GetBundleForFont(*this); |
| 333 | m_fontFace = m_fontBundle->GetFaceForFont(*this); |
| 334 | |
| 335 | if ( old ) |
| 336 | old->Release(); |
| 337 | } |
| 338 | } |