dlls/dwrite/font.c

   1 /*
   2  *    Font and collections
   3  *
   4  * Copyright 2012 Nikolay Sivov for CodeWeavers
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #define COBJMACROS
  22
  23 #include "dwrite.h"
  24 #include "dwrite_private.h"
  25
  26 #include "wine/debug.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(dwrite);
  29
  30 struct dwrite_fontfamily {
  31     IDWriteFontFamily IDWriteFontFamily_iface;
  32     LONG ref;
  33 };
  34
  35 struct dwrite_font {
  36     IDWriteFont IDWriteFont_iface;
  37     LONG ref;
  38
  39     IDWriteFontFamily *family;
  40     DWRITE_FONT_STYLE style;
  41 };
  42
  43 static inline struct dwrite_font *impl_from_IDWriteFont(IDWriteFont *iface)
  44 {
  45     return CONTAINING_RECORD(iface, struct dwrite_font, IDWriteFont_iface);
  46 }
  47
  48 static inline struct dwrite_fontfamily *impl_from_IDWriteFontFamily(IDWriteFontFamily *iface)
  49 {
  50     return CONTAINING_RECORD(iface, struct dwrite_fontfamily, IDWriteFontFamily_iface);
  51 }
  52
  53 static HRESULT WINAPI dwritefont_QueryInterface(IDWriteFont *iface, REFIID riid, void **obj)
  54 {
  55     struct dwrite_font *This = impl_from_IDWriteFont(iface);
  56
  57     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), obj);
  58
  59     if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IDWriteFont))
  60     {
  61         *obj = iface;
  62         IDWriteFont_AddRef(iface);
  63         return S_OK;
  64     }
  65
  66     *obj = NULL;
  67     return E_NOINTERFACE;
  68 }
  69
  70 static ULONG WINAPI dwritefont_AddRef(IDWriteFont *iface)
  71 {
  72     struct dwrite_font *This = impl_from_IDWriteFont(iface);
  73     ULONG ref = InterlockedIncrement(&This->ref);
  74     TRACE("(%p)->(%d)\n", This, ref);
  75     return ref;
  76 }
  77
  78 static ULONG WINAPI dwritefont_Release(IDWriteFont *iface)
  79 {
  80     struct dwrite_font *This = impl_from_IDWriteFont(iface);
  81     ULONG ref = InterlockedDecrement(&This->ref);
  82
  83     TRACE("(%p)->(%d)\n", This, ref);
  84
  85     if (!ref)
  86     {
  87         IDWriteFontFamily_Release(This->family);
  88         heap_free(This);
  89     }
  90
  91     return S_OK;
  92 }
  93
  94 static HRESULT WINAPI dwritefont_GetFontFamily(IDWriteFont *iface, IDWriteFontFamily **family)
  95 {
  96     struct dwrite_font *This = impl_from_IDWriteFont(iface);
  97     TRACE("(%p)->(%p)\n", This, family);
  98
  99     *family = This->family;
 100     IDWriteFontFamily_AddRef(*family);
 101     return S_OK;
 102 }
 103
 104 static DWRITE_FONT_WEIGHT WINAPI dwritefont_GetWeight(IDWriteFont *iface)
 105 {
 106     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 107     FIXME("(%p): stub\n", This);
 108     return 0;
 109 }
 110
 111 static DWRITE_FONT_STRETCH WINAPI dwritefont_GetStretch(IDWriteFont *iface)
 112 {
 113     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 114     FIXME("(%p): stub\n", This);
 115     return DWRITE_FONT_STRETCH_UNDEFINED;
 116 }
 117
 118 static DWRITE_FONT_STYLE WINAPI dwritefont_GetStyle(IDWriteFont *iface)
 119 {
 120     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 121     TRACE("(%p)\n", This);
 122     return This->style;
 123 }
 124
 125 static BOOL WINAPI dwritefont_IsSymbolFont(IDWriteFont *iface)
 126 {
 127     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 128     FIXME("(%p): stub\n", This);
 129     return FALSE;
 130 }
 131
 132 static HRESULT WINAPI dwritefont_GetFaceNames(IDWriteFont *iface, IDWriteLocalizedStrings **names)
 133 {
 134     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 135     FIXME("(%p)->(%p): stub\n", This, names);
 136     return E_NOTIMPL;
 137 }
 138
 139 static HRESULT WINAPI dwritefont_GetInformationalStrings(IDWriteFont *iface,
 140     DWRITE_INFORMATIONAL_STRING_ID stringid, IDWriteLocalizedStrings **strings, BOOL *exists)
 141 {
 142     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 143     FIXME("(%p)->(%d %p %p): stub\n", This, stringid, strings, exists);
 144     return E_NOTIMPL;
 145 }
 146
 147 static DWRITE_FONT_SIMULATIONS WINAPI dwritefont_GetSimulations(IDWriteFont *iface)
 148 {
 149     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 150     FIXME("(%p): stub\n", This);
 151     return DWRITE_FONT_SIMULATIONS_NONE;
 152 }
 153
 154 static void WINAPI dwritefont_GetMetrics(IDWriteFont *iface, DWRITE_FONT_METRICS *metrics)
 155 {
 156     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 157     FIXME("(%p)->(%p): stub\n", This, metrics);
 158 }
 159
 160 static HRESULT WINAPI dwritefont_HasCharacter(IDWriteFont *iface, UINT32 value, BOOL *exists)
 161 {
 162     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 163     FIXME("(%p)->(0x%08x %p): stub\n", This, value, exists);
 164     return E_NOTIMPL;
 165 }
 166
 167 static HRESULT WINAPI dwritefont_CreateFontFace(IDWriteFont *iface, IDWriteFontFace **face)
 168 {
 169     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 170     FIXME("(%p)->(%p): stub\n", This, face);
 171     return E_NOTIMPL;
 172 }
 173
 174 static const IDWriteFontVtbl dwritefontvtbl = {
 175     dwritefont_QueryInterface,
 176     dwritefont_AddRef,
 177     dwritefont_Release,
 178     dwritefont_GetFontFamily,
 179     dwritefont_GetWeight,
 180     dwritefont_GetStretch,
 181     dwritefont_GetStyle,
 182     dwritefont_IsSymbolFont,
 183     dwritefont_GetFaceNames,
 184     dwritefont_GetInformationalStrings,
 185     dwritefont_GetSimulations,
 186     dwritefont_GetMetrics,
 187     dwritefont_HasCharacter,
 188     dwritefont_CreateFontFace
 189 };
 190
 191 static HRESULT WINAPI dwritefontfamily_QueryInterface(IDWriteFontFamily *iface, REFIID riid, void **obj)
 192 {
 193     struct dwrite_fontfamily *This = impl_from_IDWriteFontFamily(iface);
 194     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), obj);
 195
 196     if (IsEqualIID(riid, &IID_IUnknown) ||
 197         IsEqualIID(riid, &IID_IDWriteFontList) ||
 198         IsEqualIID(riid, &IID_IDWriteFontFamily))
 199     {
 200         *obj = iface;
 201         IDWriteFontFamily_AddRef(iface);
 202         return S_OK;
 203     }
 204
 205     *obj = NULL;
 206     return E_NOINTERFACE;
 207 }
 208
 209 static ULONG WINAPI dwritefontfamily_AddRef(IDWriteFontFamily *iface)
 210 {
 211     struct dwrite_fontfamily *This = impl_from_IDWriteFontFamily(iface);
 212     ULONG ref = InterlockedIncrement(&This->ref);
 213     TRACE("(%p)->(%d)\n", This, ref);
 214     return ref;
 215 }
 216
 217 static ULONG WINAPI dwritefontfamily_Release(IDWriteFontFamily *iface)
 218 {
 219     struct dwrite_fontfamily *This = impl_from_IDWriteFontFamily(iface);
 220     ULONG ref = InterlockedDecrement(&This->ref);
 221
 222     TRACE("(%p)->(%d)\n", This, ref);
 223
 224     if (!ref)
 225         heap_free(This);
 226
 227     return S_OK;
 228 }
 229
 230 static HRESULT WINAPI dwritefontfamily_GetFontCollection(IDWriteFontFamily *iface, IDWriteFontCollection **collection)
 231 {
 232     struct dwrite_fontfamily *This = impl_from_IDWriteFontFamily(iface);
 233     FIXME("(%p)->(%p): stub\n", This, collection);
 234     return E_NOTIMPL;
 235 }
 236
 237 static UINT32 WINAPI dwritefontfamily_GetFontCount(IDWriteFontFamily *iface)
 238 {
 239     struct dwrite_fontfamily *This = impl_from_IDWriteFontFamily(iface);
 240     FIXME("(%p): stub\n", This);
 241     return 0;
 242 }
 243
 244 static HRESULT WINAPI dwritefontfamily_GetFont(IDWriteFontFamily *iface, UINT32 index, IDWriteFont **font)
 245 {
 246     struct dwrite_fontfamily *This = impl_from_IDWriteFontFamily(iface);
 247     FIXME("(%p)->(%u %p): stub\n", This, index, font);
 248     return E_NOTIMPL;
 249 }
 250
 251 static HRESULT WINAPI dwritefontfamily_GetFamilyNames(IDWriteFontFamily *iface, IDWriteLocalizedStrings **names)
 252 {
 253     struct dwrite_fontfamily *This = impl_from_IDWriteFontFamily(iface);
 254     FIXME("(%p)->(%p): stub\n", This, names);
 255     return E_NOTIMPL;
 256 }
 257
 258 static HRESULT WINAPI dwritefontfamily_GetFirstMatchingFont(IDWriteFontFamily *iface, DWRITE_FONT_WEIGHT weight,
 259     DWRITE_FONT_STRETCH stretch, DWRITE_FONT_STYLE style, IDWriteFont **font)
 260 {
 261     struct dwrite_fontfamily *This = impl_from_IDWriteFontFamily(iface);
 262     FIXME("(%p)->(%d %d %d %p): stub\n", This, weight, stretch, style, font);
 263     return E_NOTIMPL;
 264 }
 265
 266 static HRESULT WINAPI dwritefontfamily_GetMatchingFonts(IDWriteFontFamily *iface, DWRITE_FONT_WEIGHT weight,
 267     DWRITE_FONT_STRETCH stretch, DWRITE_FONT_STYLE style, IDWriteFontList **fonts)
 268 {
 269     struct dwrite_fontfamily *This = impl_from_IDWriteFontFamily(iface);
 270     FIXME("(%p)->(%d %d %d %p): stub\n", This, weight, stretch, style, fonts);
 271     return E_NOTIMPL;
 272 }
 273
 274 static const IDWriteFontFamilyVtbl fontfamilyvtbl = {
 275     dwritefontfamily_QueryInterface,
 276     dwritefontfamily_AddRef,
 277     dwritefontfamily_Release,
 278     dwritefontfamily_GetFontCollection,
 279     dwritefontfamily_GetFontCount,
 280     dwritefontfamily_GetFont,
 281     dwritefontfamily_GetFamilyNames,
 282     dwritefontfamily_GetFirstMatchingFont,
 283     dwritefontfamily_GetMatchingFonts
 284 };
 285
 286 static HRESULT create_fontfamily(IDWriteFontFamily **family)
 287 {
 288     struct dwrite_fontfamily *This;
 289
 290     *family = NULL;
 291
 292     This = heap_alloc(sizeof(struct dwrite_fontfamily));
 293     if (!This) return E_OUTOFMEMORY;
 294
 295     This->IDWriteFontFamily_iface.lpVtbl = &fontfamilyvtbl;
 296     This->ref = 1;
 297
 298     *family = &This->IDWriteFontFamily_iface;
 299
 300     return S_OK;
 301 }
 302
 303 HRESULT create_font_from_logfont(const LOGFONTW *logfont, IDWriteFont **font)
 304 {
 305     struct dwrite_font *This;
 306     IDWriteFontFamily *family;
 307     HRESULT hr;
 308
 309     *font = NULL;
 310
 311     hr = create_fontfamily(&family);
 312     if (hr != S_OK) return hr;
 313
 314     This = heap_alloc(sizeof(struct dwrite_font));
 315     if (!This)
 316     {
 317         IDWriteFontFamily_Release(family);
 318         return E_OUTOFMEMORY;
 319     }
 320
 321     This->IDWriteFont_iface.lpVtbl = &dwritefontvtbl;
 322     This->ref = 1;
 323     This->family = family;
 324     This->style = logfont->lfItalic ? DWRITE_FONT_STYLE_ITALIC : DWRITE_FONT_STYLE_NORMAL;
 325
 326     *font = &This->IDWriteFont_iface;
 327
 328     return S_OK;
 329 }