| /* |
| * Copyright 2014 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkTypeface_win_dw_DEFINED |
| #define SkTypeface_win_dw_DEFINED |
| |
| #include "SkAdvancedTypefaceMetrics.h" |
| #include "SkDWrite.h" |
| #include "SkHRESULT.h" |
| #include "SkTScopedComPtr.h" |
| #include "SkTypeface.h" |
| #include "SkTypefaceCache.h" |
| #include "SkTypes.h" |
| |
| #include <dwrite.h> |
| |
| class SkFontDescriptor; |
| struct SkScalerContextRec; |
| |
| static SkTypeface::Style get_style(IDWriteFont* font) { |
| int style = SkTypeface::kNormal; |
| DWRITE_FONT_WEIGHT weight = font->GetWeight(); |
| if (DWRITE_FONT_WEIGHT_DEMI_BOLD <= weight) { |
| style |= SkTypeface::kBold; |
| } |
| DWRITE_FONT_STYLE angle = font->GetStyle(); |
| if (DWRITE_FONT_STYLE_OBLIQUE == angle || DWRITE_FONT_STYLE_ITALIC == angle) { |
| style |= SkTypeface::kItalic; |
| } |
| return static_cast<SkTypeface::Style>(style); |
| } |
| |
| class DWriteFontTypeface : public SkTypeface { |
| private: |
| DWriteFontTypeface(SkTypeface::Style style, SkFontID fontID, |
| IDWriteFactory* factory, |
| IDWriteFontFace* fontFace, |
| IDWriteFont* font, |
| IDWriteFontFamily* fontFamily, |
| IDWriteFontFileLoader* fontFileLoader = NULL, |
| IDWriteFontCollectionLoader* fontCollectionLoader = NULL) |
| : SkTypeface(style, fontID, false) |
| , fFactory(SkRefComPtr(factory)) |
| , fDWriteFontCollectionLoader(SkSafeRefComPtr(fontCollectionLoader)) |
| , fDWriteFontFileLoader(SkSafeRefComPtr(fontFileLoader)) |
| , fDWriteFontFamily(SkRefComPtr(fontFamily)) |
| , fDWriteFont(SkRefComPtr(font)) |
| , fDWriteFontFace(SkRefComPtr(fontFace)) |
| { } |
| |
| public: |
| SkTScopedComPtr<IDWriteFactory> fFactory; |
| SkTScopedComPtr<IDWriteFontCollectionLoader> fDWriteFontCollectionLoader; |
| SkTScopedComPtr<IDWriteFontFileLoader> fDWriteFontFileLoader; |
| SkTScopedComPtr<IDWriteFontFamily> fDWriteFontFamily; |
| SkTScopedComPtr<IDWriteFont> fDWriteFont; |
| SkTScopedComPtr<IDWriteFontFace> fDWriteFontFace; |
| |
| static DWriteFontTypeface* Create(IDWriteFactory* factory, |
| IDWriteFontFace* fontFace, |
| IDWriteFont* font, |
| IDWriteFontFamily* fontFamily, |
| IDWriteFontFileLoader* fontFileLoader = NULL, |
| IDWriteFontCollectionLoader* fontCollectionLoader = NULL) { |
| SkTypeface::Style style = get_style(font); |
| SkFontID fontID = SkTypefaceCache::NewFontID(); |
| return SkNEW_ARGS(DWriteFontTypeface, (style, fontID, |
| factory, fontFace, font, fontFamily, |
| fontFileLoader, fontCollectionLoader)); |
| } |
| |
| protected: |
| virtual void weak_dispose() const SK_OVERRIDE { |
| if (fDWriteFontCollectionLoader.get()) { |
| HRV(fFactory->UnregisterFontCollectionLoader(fDWriteFontCollectionLoader.get())); |
| } |
| if (fDWriteFontFileLoader.get()) { |
| HRV(fFactory->UnregisterFontFileLoader(fDWriteFontFileLoader.get())); |
| } |
| |
| //SkTypefaceCache::Remove(this); |
| INHERITED::weak_dispose(); |
| } |
| |
| virtual SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE; |
| virtual SkScalerContext* onCreateScalerContext(const SkDescriptor*) const SK_OVERRIDE; |
| virtual void onFilterRec(SkScalerContextRec*) const SK_OVERRIDE; |
| virtual SkAdvancedTypefaceMetrics* onGetAdvancedTypefaceMetrics( |
| SkAdvancedTypefaceMetrics::PerGlyphInfo, |
| const uint32_t*, uint32_t) const SK_OVERRIDE; |
| virtual void onGetFontDescriptor(SkFontDescriptor*, bool*) const SK_OVERRIDE; |
| virtual int onCharsToGlyphs(const void* chars, Encoding encoding, |
| uint16_t glyphs[], int glyphCount) const SK_OVERRIDE; |
| virtual int onCountGlyphs() const SK_OVERRIDE; |
| virtual int onGetUPEM() const SK_OVERRIDE; |
| virtual SkTypeface::LocalizedStrings* onCreateFamilyNameIterator() const SK_OVERRIDE; |
| virtual int onGetTableTags(SkFontTableTag tags[]) const SK_OVERRIDE; |
| virtual size_t onGetTableData(SkFontTableTag, size_t offset, |
| size_t length, void* data) const SK_OVERRIDE; |
| |
| private: |
| typedef SkTypeface INHERITED; |
| }; |
| |
| #endif |