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1cc8234416
Backed out changeset d5b1f2b78915 (bug 1056479) Backed out changeset bcc65b714dd6 (bug 1056479) Backed out changeset 0b35e8a463d2 (bug 1056479) Backed out changeset 0933391809c9 (bug 1056479) Backed out changeset 93bd67204fac (bug 1056479) Backed out changeset 5260b93eb0b9 (bug 1056479) Backed out changeset 130bea3f8623 (bug 1056479) Backed out changeset 408e078cc18d (bug 1056479) Backed out changeset a651c240979d (bug 1056479) Backed out changeset d74ae8fcaac9 (bug 1056479)
357 lines
11 KiB
C++
357 lines
11 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_GDIFONTLIST_H
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#define GFX_GDIFONTLIST_H
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#include "mozilla/MemoryReporting.h"
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#include "gfxWindowsPlatform.h"
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#include "gfxPlatformFontList.h"
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#include "nsGkAtoms.h"
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#include <windows.h>
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class AutoDC // get the global device context, and auto-release it on destruction
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{
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public:
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AutoDC() {
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mDC = ::GetDC(nullptr);
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}
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~AutoDC() {
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::ReleaseDC(nullptr, mDC);
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}
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HDC GetDC() {
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return mDC;
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}
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private:
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HDC mDC;
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};
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class AutoSelectFont // select a font into the given DC, and auto-restore
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{
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public:
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AutoSelectFont(HDC aDC, LOGFONTW *aLogFont)
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: mOwnsFont(false)
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{
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mFont = ::CreateFontIndirectW(aLogFont);
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if (mFont) {
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mOwnsFont = true;
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mDC = aDC;
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mOldFont = (HFONT)::SelectObject(aDC, mFont);
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} else {
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mOldFont = nullptr;
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}
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}
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AutoSelectFont(HDC aDC, HFONT aFont)
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: mOwnsFont(false)
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{
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mDC = aDC;
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mFont = aFont;
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mOldFont = (HFONT)::SelectObject(aDC, aFont);
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}
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~AutoSelectFont() {
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if (mOldFont) {
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::SelectObject(mDC, mOldFont);
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if (mOwnsFont) {
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::DeleteObject(mFont);
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}
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}
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}
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bool IsValid() const {
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return mFont != nullptr;
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}
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HFONT GetFont() const {
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return mFont;
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}
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private:
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HDC mDC;
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HFONT mFont;
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HFONT mOldFont;
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bool mOwnsFont;
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};
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/**
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* List of different types of fonts we support on Windows.
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* These can generally be lumped in to 3 categories where we have to
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* do special things: Really old fonts bitmap and vector fonts (device
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* and raster), Type 1 fonts, and TrueType/OpenType fonts.
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*
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* This list is sorted in order from least prefered to most prefered.
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* We prefer Type1 fonts over OpenType fonts to avoid falling back to
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* things like Arial (opentype) when you ask for Helvetica (type1)
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**/
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enum gfxWindowsFontType {
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GFX_FONT_TYPE_UNKNOWN = 0,
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GFX_FONT_TYPE_DEVICE,
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GFX_FONT_TYPE_RASTER,
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GFX_FONT_TYPE_TRUETYPE,
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GFX_FONT_TYPE_PS_OPENTYPE,
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GFX_FONT_TYPE_TT_OPENTYPE,
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GFX_FONT_TYPE_TYPE1
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};
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// A single member of a font family (i.e. a single face, such as Times Italic)
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// represented as a LOGFONT that will resolve to the correct face.
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// This replaces FontEntry from gfxWindowsFonts.h/cpp.
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class GDIFontEntry : public gfxFontEntry
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{
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public:
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LPLOGFONTW GetLogFont() { return &mLogFont; }
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nsresult ReadCMAP(FontInfoData *aFontInfoData = nullptr);
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virtual bool IsSymbolFont();
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void FillLogFont(LOGFONTW *aLogFont, uint16_t aWeight, gfxFloat aSize,
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bool aUseCleartype);
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static gfxWindowsFontType DetermineFontType(const NEWTEXTMETRICW& metrics,
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DWORD fontType)
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{
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gfxWindowsFontType feType;
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if (metrics.ntmFlags & NTM_TYPE1)
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feType = GFX_FONT_TYPE_TYPE1;
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else if (metrics.ntmFlags & NTM_PS_OPENTYPE)
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feType = GFX_FONT_TYPE_PS_OPENTYPE;
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else if (metrics.ntmFlags & NTM_TT_OPENTYPE)
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feType = GFX_FONT_TYPE_TT_OPENTYPE;
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else if (fontType == TRUETYPE_FONTTYPE)
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feType = GFX_FONT_TYPE_TRUETYPE;
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else if (fontType == RASTER_FONTTYPE)
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feType = GFX_FONT_TYPE_RASTER;
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else if (fontType == DEVICE_FONTTYPE)
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feType = GFX_FONT_TYPE_DEVICE;
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else
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feType = GFX_FONT_TYPE_UNKNOWN;
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return feType;
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}
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bool IsType1() const {
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return (mFontType == GFX_FONT_TYPE_TYPE1);
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}
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bool IsTrueType() const {
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return (mFontType == GFX_FONT_TYPE_TRUETYPE ||
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mFontType == GFX_FONT_TYPE_PS_OPENTYPE ||
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mFontType == GFX_FONT_TYPE_TT_OPENTYPE);
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}
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virtual bool MatchesGenericFamily(const nsACString& aGeneric) const {
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if (aGeneric.IsEmpty()) {
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return true;
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}
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// Japanese 'Mincho' fonts do not belong to FF_MODERN even if
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// they are fixed pitch because they have variable stroke width.
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if (mWindowsFamily == FF_ROMAN && mWindowsPitch & FIXED_PITCH) {
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return aGeneric.EqualsLiteral("monospace");
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}
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// Japanese 'Gothic' fonts do not belong to FF_SWISS even if
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// they are variable pitch because they have constant stroke width.
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if (mWindowsFamily == FF_MODERN && mWindowsPitch & VARIABLE_PITCH) {
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return aGeneric.EqualsLiteral("sans-serif");
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}
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// All other fonts will be grouped correctly using family...
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switch (mWindowsFamily) {
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case FF_DONTCARE:
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return false;
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case FF_ROMAN:
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return aGeneric.EqualsLiteral("serif");
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case FF_SWISS:
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return aGeneric.EqualsLiteral("sans-serif");
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case FF_MODERN:
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return aGeneric.EqualsLiteral("monospace");
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case FF_SCRIPT:
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return aGeneric.EqualsLiteral("cursive");
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case FF_DECORATIVE:
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return aGeneric.EqualsLiteral("fantasy");
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}
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return false;
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}
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virtual bool SupportsLangGroup(nsIAtom* aLangGroup) const {
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if (!aLangGroup || aLangGroup == nsGkAtoms::Unicode) {
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return true;
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}
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int16_t bit = -1;
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/* map our langgroup names in to Windows charset bits */
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if (aLangGroup == nsGkAtoms::x_western) {
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bit = ANSI_CHARSET;
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} else if (aLangGroup == nsGkAtoms::Japanese) {
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bit = SHIFTJIS_CHARSET;
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} else if (aLangGroup == nsGkAtoms::ko) {
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bit = HANGEUL_CHARSET;
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} else if (aLangGroup == nsGkAtoms::ko_xxx) {
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bit = JOHAB_CHARSET;
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} else if (aLangGroup == nsGkAtoms::zh_cn) {
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bit = GB2312_CHARSET;
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} else if (aLangGroup == nsGkAtoms::zh_tw) {
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bit = CHINESEBIG5_CHARSET;
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} else if (aLangGroup == nsGkAtoms::el_) {
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bit = GREEK_CHARSET;
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} else if (aLangGroup == nsGkAtoms::he) {
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bit = HEBREW_CHARSET;
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} else if (aLangGroup == nsGkAtoms::ar) {
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bit = ARABIC_CHARSET;
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} else if (aLangGroup == nsGkAtoms::x_cyrillic) {
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bit = RUSSIAN_CHARSET;
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} else if (aLangGroup == nsGkAtoms::th) {
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bit = THAI_CHARSET;
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} else if (aLangGroup == nsGkAtoms::x_symbol) {
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bit = SYMBOL_CHARSET;
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}
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if (bit != -1) {
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return mCharset.test(bit);
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}
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return false;
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}
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virtual bool SupportsRange(uint8_t range) {
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return mUnicodeRanges.test(range);
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}
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virtual bool SkipDuringSystemFallback() {
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return !HasCmapTable(); // explicitly skip non-SFNT fonts
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}
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virtual bool TestCharacterMap(uint32_t aCh);
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virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf,
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FontListSizes* aSizes) const;
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// create a font entry for a font with a given name
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static GDIFontEntry* CreateFontEntry(const nsAString& aName,
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gfxWindowsFontType aFontType,
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bool aItalic,
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uint16_t aWeight, int16_t aStretch,
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gfxUserFontData* aUserFontData,
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bool aFamilyHasItalicFace);
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// create a font entry for a font referenced by its fullname
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static GDIFontEntry* LoadLocalFont(const nsAString& aFontName,
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uint16_t aWeight,
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int16_t aStretch,
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bool aItalic);
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uint8_t mWindowsFamily;
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uint8_t mWindowsPitch;
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gfxWindowsFontType mFontType;
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bool mForceGDI : 1;
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// For src:local user-fonts, we keep track of whether the platform family
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// contains an italic face, because in this case we can't safely ask GDI
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// to create synthetic italics (oblique) via the LOGFONT.
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// (For other types of font, this is just set to false.)
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bool mFamilyHasItalicFace : 1;
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gfxSparseBitSet mCharset;
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gfxSparseBitSet mUnicodeRanges;
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protected:
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friend class gfxWindowsFont;
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GDIFontEntry(const nsAString& aFaceName, gfxWindowsFontType aFontType,
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bool aItalic, uint16_t aWeight, int16_t aStretch,
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gfxUserFontData *aUserFontData, bool aFamilyHasItalicFace);
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void InitLogFont(const nsAString& aName, gfxWindowsFontType aFontType);
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virtual gfxFont *CreateFontInstance(const gfxFontStyle *aFontStyle, bool aNeedsBold);
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virtual nsresult CopyFontTable(uint32_t aTableTag,
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FallibleTArray<uint8_t>& aBuffer) override;
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LOGFONTW mLogFont;
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};
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// a single font family, referencing one or more faces
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class GDIFontFamily : public gfxFontFamily
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{
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public:
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GDIFontFamily(nsAString &aName) :
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gfxFontFamily(aName) {}
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virtual void FindStyleVariations(FontInfoData *aFontInfoData = nullptr);
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private:
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static int CALLBACK FamilyAddStylesProc(const ENUMLOGFONTEXW *lpelfe,
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const NEWTEXTMETRICEXW *nmetrics,
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DWORD fontType, LPARAM data);
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};
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class gfxGDIFontList : public gfxPlatformFontList {
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public:
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static gfxGDIFontList* PlatformFontList() {
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return static_cast<gfxGDIFontList*>(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 gfxFontFamily* FindFamily(const nsAString& aFamily,
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bool aUseSystemFonts = false);
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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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bool aItalic);
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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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bool aItalic,
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const uint8_t* aFontData,
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uint32_t aLength);
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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 gfxWindowsPlatform;
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gfxGDIFontList();
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nsresult GetFontSubstitutes();
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static int CALLBACK EnumFontFamExProc(ENUMLOGFONTEXW *lpelfe,
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NEWTEXTMETRICEXW *lpntme,
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DWORD fontType,
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LPARAM lParam);
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virtual already_AddRefed<FontInfoData> CreateFontInfoData();
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#ifdef MOZ_BUNDLED_FONTS
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void ActivateBundledFonts();
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#endif
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typedef nsRefPtrHashtable<nsStringHashKey, gfxFontFamily> FontTable;
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FontTable mFontSubstitutes;
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nsTArray<nsString> mNonExistingFonts;
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};
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#endif /* GFX_GDIFONTLIST_H */
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