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https://gitlab.winehq.org/wine/wine-gecko.git
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863943dfb7
CLOSED TREE Backed out changeset d66c3f19a210 (bug 1235261) Backed out changeset 467d945426bb (bug 1235261) Backed out changeset 32b61df13142 (bug 1235261) Backed out changeset c50bb8ed4196 (bug 1235261) Backed out changeset 0ff0fa6fe81f (bug 1235261) Backed out changeset df70e89669da (bug 1235261) Backed out changeset 064969357fc9 (bug 1235261)
446 lines
14 KiB
C++
446 lines
14 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GFX_DWRITEFONTLIST_H
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#define GFX_DWRITEFONTLIST_H
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#include "mozilla/MemoryReporting.h"
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#include "gfxDWriteCommon.h"
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#include "gfxFont.h"
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#include "gfxUserFontSet.h"
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#include "cairo-win32.h"
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#include "gfxPlatformFontList.h"
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#include "gfxPlatform.h"
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#include <algorithm>
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/**
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* gfxDWriteFontFamily is a class that describes one of the fonts on the
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* users system. It holds each gfxDWriteFontEntry (maps more directly to
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* a font face) which holds font type, charset info and character map info.
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*/
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class gfxDWriteFontEntry;
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/**
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* \brief Class representing directwrite font family.
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*/
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class gfxDWriteFontFamily : public gfxFontFamily
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{
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public:
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/**
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* Constructs a new DWriteFont Family.
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*
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* \param aName Name identifying the family
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* \param aFamily IDWriteFontFamily object representing the directwrite
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* family object.
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*/
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gfxDWriteFontFamily(const nsAString& aName,
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IDWriteFontFamily *aFamily)
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: gfxFontFamily(aName), mDWFamily(aFamily), mForceGDIClassic(false) {}
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virtual ~gfxDWriteFontFamily();
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virtual void FindStyleVariations(FontInfoData *aFontInfoData = nullptr);
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virtual void LocalizedName(nsAString& aLocalizedName);
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virtual void ReadFaceNames(gfxPlatformFontList *aPlatformFontList,
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bool aNeedFullnamePostscriptNames);
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void SetForceGDIClassic(bool aForce) { mForceGDIClassic = aForce; }
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virtual void AddSizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf,
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FontListSizes* aSizes) const;
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virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf,
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FontListSizes* aSizes) const;
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already_AddRefed<IDWriteFont> GetDefaultFont();
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protected:
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/** This font family's directwrite fontfamily object */
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RefPtr<IDWriteFontFamily> mDWFamily;
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bool mForceGDIClassic;
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};
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/**
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* \brief Class representing DirectWrite FontEntry (a unique font style/family)
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*/
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class gfxDWriteFontEntry : public gfxFontEntry
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{
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public:
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/**
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* Constructs a font entry.
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*
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* \param aFaceName The name of the corresponding font face.
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* \param aFont DirectWrite font object
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*/
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gfxDWriteFontEntry(const nsAString& aFaceName,
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IDWriteFont *aFont)
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: gfxFontEntry(aFaceName), mFont(aFont), mFontFile(nullptr),
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mForceGDIClassic(false)
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{
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DWRITE_FONT_STYLE dwriteStyle = aFont->GetStyle();
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mStyle = (dwriteStyle == DWRITE_FONT_STYLE_ITALIC ?
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NS_FONT_STYLE_ITALIC :
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(dwriteStyle == DWRITE_FONT_STYLE_OBLIQUE ?
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NS_FONT_STYLE_OBLIQUE : NS_FONT_STYLE_NORMAL));
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mStretch = FontStretchFromDWriteStretch(aFont->GetStretch());
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uint16_t weight = NS_ROUNDUP(aFont->GetWeight() - 50, 100);
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weight = std::max<uint16_t>(100, weight);
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weight = std::min<uint16_t>(900, weight);
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mWeight = weight;
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mIsCJK = UNINITIALIZED_VALUE;
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}
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/**
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* Constructs a font entry using a font. But with custom font values.
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* This is used for creating correct font entries for @font-face with local
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* font source.
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*
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* \param aFaceName The name of the corresponding font face.
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* \param aFont DirectWrite font object
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* \param aWeight Weight of the font
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* \param aStretch Stretch of the font
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* \param aStyle italic or oblique of font
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*/
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gfxDWriteFontEntry(const nsAString& aFaceName,
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IDWriteFont *aFont,
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uint16_t aWeight,
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int16_t aStretch,
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uint8_t aStyle)
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: gfxFontEntry(aFaceName), mFont(aFont), mFontFile(nullptr),
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mForceGDIClassic(false)
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{
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mWeight = aWeight;
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mStretch = aStretch;
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mStyle = aStyle;
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mIsLocalUserFont = true;
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mIsCJK = UNINITIALIZED_VALUE;
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}
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/**
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* Constructs a font entry using a font file.
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*
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* \param aFaceName The name of the corresponding font face.
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* \param aFontFile DirectWrite fontfile object
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* \param aFontFileStream DirectWrite fontfile stream object
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* \param aWeight Weight of the font
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* \param aStretch Stretch of the font
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* \param aStyle italic or oblique of font
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*/
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gfxDWriteFontEntry(const nsAString& aFaceName,
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IDWriteFontFile *aFontFile,
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IDWriteFontFileStream *aFontFileStream,
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uint16_t aWeight,
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int16_t aStretch,
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uint8_t aStyle)
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: gfxFontEntry(aFaceName), mFont(nullptr), mFontFile(aFontFile),
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mFontFileStream(aFontFileStream), mForceGDIClassic(false)
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{
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mWeight = aWeight;
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mStretch = aStretch;
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mStyle = aStyle;
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mIsDataUserFont = true;
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mIsCJK = UNINITIALIZED_VALUE;
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}
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virtual ~gfxDWriteFontEntry();
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virtual bool IsSymbolFont();
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virtual hb_blob_t* GetFontTable(uint32_t aTableTag) override;
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nsresult ReadCMAP(FontInfoData *aFontInfoData = nullptr);
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bool IsCJKFont();
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void SetForceGDIClassic(bool aForce) { mForceGDIClassic = aForce; }
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bool GetForceGDIClassic() { return mForceGDIClassic; }
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virtual void AddSizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf,
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FontListSizes* aSizes) const;
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virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf,
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FontListSizes* aSizes) const;
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IDWriteFont* GetFont() {
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return mFont;
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}
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protected:
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friend class gfxDWriteFont;
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friend class gfxDWriteFontList;
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virtual nsresult CopyFontTable(uint32_t aTableTag,
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FallibleTArray<uint8_t>& aBuffer) override;
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virtual gfxFont *CreateFontInstance(const gfxFontStyle *aFontStyle,
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bool aNeedsBold);
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nsresult CreateFontFace(
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IDWriteFontFace **aFontFace,
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DWRITE_FONT_SIMULATIONS aSimulations = DWRITE_FONT_SIMULATIONS_NONE);
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static bool InitLogFont(IDWriteFont *aFont, LOGFONTW *aLogFont);
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/**
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* A fontentry only needs to have either of these. If it has both only
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* the IDWriteFont will be used.
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*/
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RefPtr<IDWriteFont> mFont;
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RefPtr<IDWriteFontFile> mFontFile;
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// For custom fonts, we hold a reference to the IDWriteFontFileStream for
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// for the IDWriteFontFile, so that the data is available.
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RefPtr<IDWriteFontFileStream> mFontFileStream;
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// font face corresponding to the mFont/mFontFile *without* any DWrite
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// style simulations applied
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RefPtr<IDWriteFontFace> mFontFace;
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DWRITE_FONT_FACE_TYPE mFaceType;
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int8_t mIsCJK;
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bool mForceGDIClassic;
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};
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// custom text renderer used to determine the fallback font for a given char
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class DWriteFontFallbackRenderer final : public IDWriteTextRenderer
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{
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public:
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DWriteFontFallbackRenderer(IDWriteFactory *aFactory)
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: mRefCount(0)
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{
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HRESULT hr = S_OK;
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hr = aFactory->GetSystemFontCollection(getter_AddRefs(mSystemFonts));
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NS_ASSERTION(SUCCEEDED(hr), "GetSystemFontCollection failed!");
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}
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~DWriteFontFallbackRenderer()
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{}
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// IDWriteTextRenderer methods
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IFACEMETHOD(DrawGlyphRun)(
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void* clientDrawingContext,
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FLOAT baselineOriginX,
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FLOAT baselineOriginY,
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DWRITE_MEASURING_MODE measuringMode,
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DWRITE_GLYPH_RUN const* glyphRun,
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DWRITE_GLYPH_RUN_DESCRIPTION const* glyphRunDescription,
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IUnknown* clientDrawingEffect
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);
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IFACEMETHOD(DrawUnderline)(
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void* clientDrawingContext,
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FLOAT baselineOriginX,
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FLOAT baselineOriginY,
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DWRITE_UNDERLINE const* underline,
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IUnknown* clientDrawingEffect
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)
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{
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return E_NOTIMPL;
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}
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IFACEMETHOD(DrawStrikethrough)(
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void* clientDrawingContext,
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FLOAT baselineOriginX,
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FLOAT baselineOriginY,
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DWRITE_STRIKETHROUGH const* strikethrough,
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IUnknown* clientDrawingEffect
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)
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{
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return E_NOTIMPL;
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}
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IFACEMETHOD(DrawInlineObject)(
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void* clientDrawingContext,
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FLOAT originX,
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FLOAT originY,
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IDWriteInlineObject* inlineObject,
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BOOL isSideways,
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BOOL isRightToLeft,
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IUnknown* clientDrawingEffect
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)
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{
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return E_NOTIMPL;
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}
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// IDWritePixelSnapping methods
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IFACEMETHOD(IsPixelSnappingDisabled)(
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void* clientDrawingContext,
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BOOL* isDisabled
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)
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{
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*isDisabled = FALSE;
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return S_OK;
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}
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IFACEMETHOD(GetCurrentTransform)(
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void* clientDrawingContext,
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DWRITE_MATRIX* transform
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)
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{
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const DWRITE_MATRIX ident = {1.0, 0.0, 0.0, 1.0, 0.0, 0.0};
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*transform = ident;
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return S_OK;
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}
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IFACEMETHOD(GetPixelsPerDip)(
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void* clientDrawingContext,
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FLOAT* pixelsPerDip
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)
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{
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*pixelsPerDip = 1.0f;
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return S_OK;
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}
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// IUnknown methods
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IFACEMETHOD_(unsigned long, AddRef) ()
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{
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return InterlockedIncrement(&mRefCount);
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}
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IFACEMETHOD_(unsigned long, Release) ()
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{
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unsigned long newCount = InterlockedDecrement(&mRefCount);
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if (newCount == 0)
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{
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delete this;
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return 0;
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}
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return newCount;
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}
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IFACEMETHOD(QueryInterface) (IID const& riid, void** ppvObject)
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{
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if (__uuidof(IDWriteTextRenderer) == riid) {
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*ppvObject = this;
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} else if (__uuidof(IDWritePixelSnapping) == riid) {
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*ppvObject = this;
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} else if (__uuidof(IUnknown) == riid) {
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*ppvObject = this;
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} else {
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*ppvObject = nullptr;
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return E_FAIL;
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}
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this->AddRef();
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return S_OK;
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}
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const nsString& FallbackFamilyName() { return mFamilyName; }
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protected:
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long mRefCount;
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RefPtr<IDWriteFontCollection> mSystemFonts;
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nsString mFamilyName;
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};
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class gfxDWriteFontList : public gfxPlatformFontList {
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public:
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gfxDWriteFontList();
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static gfxDWriteFontList* PlatformFontList() {
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return static_cast<gfxDWriteFontList*>(sPlatformFontList);
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}
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// initialize font lists
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virtual nsresult InitFontList();
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virtual gfxFontFamily* GetDefaultFont(const gfxFontStyle* aStyle);
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virtual gfxFontEntry* LookupLocalFont(const nsAString& aFontName,
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uint16_t aWeight,
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int16_t aStretch,
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uint8_t aStyle);
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virtual gfxFontEntry* MakePlatformFont(const nsAString& aFontName,
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uint16_t aWeight,
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int16_t aStretch,
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uint8_t aStyle,
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const uint8_t* aFontData,
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uint32_t aLength);
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bool GetStandardFamilyName(const nsAString& aFontName,
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nsAString& aFamilyName);
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IDWriteGdiInterop *GetGDIInterop() { return mGDIInterop; }
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bool UseGDIFontTableAccess() { return mGDIFontTableAccess; }
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gfxFontFamily* FindFamily(const nsAString& aFamily,
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gfxFontStyle* aStyle = nullptr,
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gfxFloat aDevToCssSize = 1.0) override;
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gfxFloat GetForceGDIClassicMaxFontSize() { return mForceGDIClassicMaxFontSize; }
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virtual void AddSizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf,
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FontListSizes* aSizes) const;
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virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf,
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FontListSizes* aSizes) const;
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private:
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friend class gfxDWriteFontFamily;
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nsresult GetFontSubstitutes();
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void GetDirectWriteSubstitutes();
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// search fonts system-wide for a given character, null otherwise
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virtual gfxFontEntry* GlobalFontFallback(const uint32_t aCh,
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int32_t aRunScript,
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const gfxFontStyle* aMatchStyle,
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uint32_t& aCmapCount,
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gfxFontFamily** aMatchedFamily);
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virtual bool UsesSystemFallback() { return true; }
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void GetFontsFromCollection(IDWriteFontCollection* aCollection);
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#ifdef MOZ_BUNDLED_FONTS
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already_AddRefed<IDWriteFontCollection>
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CreateBundledFontsCollection(IDWriteFactory* aFactory);
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#endif
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/**
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* Fonts listed in the registry as substitutes but for which no actual
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* font family is found.
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*/
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nsTArray<nsString> mNonExistingFonts;
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/**
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* Table of font substitutes, we grab this from the registry to get
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* alternative font names.
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*/
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FontFamilyTable mFontSubstitutes;
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virtual already_AddRefed<FontInfoData> CreateFontInfoData();
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gfxFloat mForceGDIClassicMaxFontSize;
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// whether to use GDI font table access routines
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bool mGDIFontTableAccess;
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RefPtr<IDWriteGdiInterop> mGDIInterop;
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RefPtr<DWriteFontFallbackRenderer> mFallbackRenderer;
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RefPtr<IDWriteTextFormat> mFallbackFormat;
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RefPtr<IDWriteFontCollection> mSystemFonts;
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#ifdef MOZ_BUNDLED_FONTS
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RefPtr<IDWriteFontCollection> mBundledFonts;
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#endif
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};
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#endif /* GFX_DWRITEFONTLIST_H */
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