gfxFontGroup Class Reference

#include <gfxFont.h>

Inheritance diagram for gfxFontGroup:

Collaboration diagram for gfxFontGroup:

List of all members.

Public Types
enum	{ UNDERLINE_OFFSET_NOT_SET = 32767 }
typedef PRBool(*	FontCreationCallback )(const nsAString &aName, const nsACString &aGenericName, void *closure)
Public Member Functions
	gfxFontGroup (const nsAString &aFamilies, const gfxFontStyle *aStyle, gfxUserFontSet *aUserFontSet=0L)
virtual	~gfxFontGroup ()
virtual gfxFont *	GetFontAt (PRInt32 i)
virtual PRUint32	FontListLength () const
PRBool	Equals (const gfxFontGroup &other) const
const gfxFontStyle *	GetStyle () const
virtual gfxFontGroup *	Copy (const gfxFontStyle *aStyle)
gfxTextRun *	MakeEmptyTextRun (const Parameters *aParams, PRUint32 aFlags)
	Make a textrun for an empty string.
gfxTextRun *	MakeSpaceTextRun (const Parameters *aParams, PRUint32 aFlags)
	Make a textrun for a single ASCII space.
virtual gfxTextRun *	MakeTextRun (const PRUnichar *aString, PRUint32 aLength, const Parameters *aParams, PRUint32 aFlags)
	Make a textrun for a given string.
virtual gfxTextRun *	MakeTextRun (const PRUint8 *aString, PRUint32 aLength, const Parameters *aParams, PRUint32 aFlags)
	Make a textrun for a given string.
PRBool	ForEachFont (const nsAString &aFamilies, nsIAtom *aLanguage, FontCreationCallback fc, void *closure)
PRBool	ForEachFont (FontCreationCallback fc, void *closure)
PRBool	HasFont (const gfxFontEntry *aFontEntry)
	Check whether a given font (specified by its gfxFontEntry) is already in the fontgroup's list of actual fonts.
const nsString_external &	GetFamilies ()
virtual gfxFloat	GetUnderlineOffset ()
virtual already_AddRefed< gfxFont >	FindFontForChar (PRUint32 ch, PRUint32 prevCh, PRInt32 aRunScript, gfxFont *aPrevMatchedFont)
virtual already_AddRefed< gfxFont >	WhichPrefFontSupportsChar (PRUint32 aCh)
virtual already_AddRefed< gfxFont >	WhichSystemFontSupportsChar (PRUint32 aCh)
void	ComputeRanges (nsTArray< gfxTextRange > &mRanges, const PRUnichar *aString, PRUint32 begin, PRUint32 end, PRInt32 aRunScript)
gfxUserFontSet *	GetUserFontSet ()
PRUint64	GetGeneration ()
virtual void	UpdateFontList ()
Static Public Member Functions
static void	Shutdown ()
static PRBool	IsInvalidChar (PRUnichar ch)
	The listed characters should not be passed in to MakeTextRun and should be treated as invisible and zero-width.
Protected Member Functions
void	SetUserFontSet (gfxUserFontSet *aUserFontSet)
void	BuildFontList ()
void	InitMetricsForBadFont (gfxFont *aBadFont)
void	InitTextRun (gfxContext *aContext, gfxTextRun *aTextRun, const PRUnichar *aString, PRUint32 aLength)
void	InitScriptRun (gfxContext *aContext, gfxTextRun *aTextRun, const PRUnichar *aString, PRUint32 aTotalLength, PRUint32 aScriptRunStart, PRUint32 aScriptRunEnd, PRInt32 aRunScript)
PRBool	ForEachFontInternal (const nsAString &aFamilies, nsIAtom *aLanguage, PRBool aResolveGeneric, PRBool aResolveFontName, FontCreationCallback fc, void *closure)
Static Protected Member Functions
static PRBool	FontResolverProc (const nsAString &aName, void *aClosure)
static PRBool	FindPlatformFont (const nsAString &aName, const nsACString &aGenericName, void *closure)
Protected Attributes
nsString_external	mFamilies
gfxFontStyle	mStyle
nsTArray< nsRefPtr< gfxFont > >	mFonts
gfxFloat	mUnderlineOffset
gfxUserFontSet *	mUserFontSet
PRUint64	mCurrGeneration
nsRefPtr< gfxFontFamily >	mLastPrefFamily
nsRefPtr< gfxFont >	mLastPrefFont
eFontPrefLang	mLastPrefLang
PRBool	mLastPrefFirstFont
eFontPrefLang	mPageLang
Static Protected Attributes
static nsILanguageAtomService *	gLangService

---

Member Typedef Documentation

typedef PRBool(* gfxFontGroup::FontCreationCallback)(const nsAString &aName, const nsACString &aGenericName, void *closure)

---

Member Enumeration Documentation

anonymous enum

Enumerator:

UNDERLINE_OFFSET_NOT_SET

---

Constructor & Destructor Documentation

gfxFontGroup::gfxFontGroup	(	const nsAString &	aFamilies,
		const gfxFontStyle *	aStyle,
		gfxUserFontSet *	aUserFontSet = 0L
	)

virtual gfxFontGroup::~gfxFontGroup

(

)

[virtual]

---

Member Function Documentation

void gfxFontGroup::BuildFontList

(

)

[protected]

void gfxFontGroup::ComputeRanges	(	nsTArray< gfxTextRange > &	mRanges,
		const PRUnichar *	aString,
		PRUint32	begin,
		PRUint32	end,
		PRInt32	aRunScript
	)

virtual gfxFontGroup* gfxFontGroup::Copy

(

const gfxFontStyle *

aStyle

)

[virtual]

Reimplemented in gfxPangoFontGroup.

PRBool gfxFontGroup::Equals

(

const gfxFontGroup &

other

)

const [inline]

virtual already_AddRefed<gfxFont> gfxFontGroup::FindFontForChar	(	PRUint32	ch,
		PRUint32	prevCh,
		PRInt32	aRunScript,
		gfxFont *	aPrevMatchedFont
	)			[virtual]

Reimplemented in gfxPangoFontGroup.

static PRBool gfxFontGroup::FindPlatformFont	(	const nsAString &	aName,
		const nsACString &	aGenericName,
		void *	closure
	)			[static, protected]

virtual PRUint32 gfxFontGroup::FontListLength

(

)

const [inline, virtual]

static PRBool gfxFontGroup::FontResolverProc	(	const nsAString &	aName,
		void *	aClosure
	)			[static, protected]

PRBool gfxFontGroup::ForEachFont	(	const nsAString &	aFamilies,
		nsIAtom *	aLanguage,
		FontCreationCallback	fc,
		void *	closure
	)

PRBool gfxFontGroup::ForEachFont	(	FontCreationCallback	fc,
		void *	closure
	)

PRBool gfxFontGroup::ForEachFontInternal	(	const nsAString &	aFamilies,
		nsIAtom *	aLanguage,
		PRBool	aResolveGeneric,
		PRBool	aResolveFontName,
		FontCreationCallback	fc,
		void *	closure
	)			[protected]

const nsString_external& gfxFontGroup::GetFamilies

(

)

[inline]

virtual gfxFont* gfxFontGroup::GetFontAt

(

PRInt32

i

)

[inline, virtual]

Reimplemented in gfxPangoFontGroup.

PRUint64 gfxFontGroup::GetGeneration

(

)

const gfxFontStyle* gfxFontGroup::GetStyle

(

)

const [inline]

virtual gfxFloat gfxFontGroup::GetUnderlineOffset

(

)

[inline, virtual]

gfxUserFontSet* gfxFontGroup::GetUserFontSet

(

)

PRBool gfxFontGroup::HasFont

(

const gfxFontEntry *

aFontEntry

)

Check whether a given font (specified by its gfxFontEntry) is already in the fontgroup's list of actual fonts.

void gfxFontGroup::InitMetricsForBadFont

(

gfxFont *

aBadFont

)

[protected]

void gfxFontGroup::InitScriptRun	(	gfxContext *	aContext,
		gfxTextRun *	aTextRun,
		const PRUnichar *	aString,
		PRUint32	aTotalLength,
		PRUint32	aScriptRunStart,
		PRUint32	aScriptRunEnd,
		PRInt32	aRunScript
	)			[protected]

void gfxFontGroup::InitTextRun	(	gfxContext *	aContext,
		gfxTextRun *	aTextRun,
		const PRUnichar *	aString,
		PRUint32	aLength
	)			[protected]

static PRBool gfxFontGroup::IsInvalidChar

(

PRUnichar

ch

)

[static]

The listed characters should not be passed in to MakeTextRun and should be treated as invisible and zero-width.

gfxTextRun* gfxFontGroup::MakeEmptyTextRun	(	const Parameters *	aParams,
		PRUint32	aFlags
	)

Make a textrun for an empty string.

This is fast; if you call it, don't bother caching the result.

gfxTextRun* gfxFontGroup::MakeSpaceTextRun	(	const Parameters *	aParams,
		PRUint32	aFlags
	)

Make a textrun for a single ASCII space.

This is fast; if you call it, don't bother caching the result.

virtual gfxTextRun* gfxFontGroup::MakeTextRun	(	const PRUint8 *	aString,
		PRUint32	aLength,
		const Parameters *	aParams,
		PRUint32	aFlags
	)			[virtual]

Make a textrun for a given string.

If aText is not persistent (aFlags & TEXT_IS_PERSISTENT), the textrun will copy it. This calls FetchGlyphExtents on the textrun.

virtual gfxTextRun* gfxFontGroup::MakeTextRun	(	const PRUnichar *	aString,
		PRUint32	aLength,
		const Parameters *	aParams,
		PRUint32	aFlags
	)			[virtual]

Make a textrun for a given string.

If aText is not persistent (aFlags & TEXT_IS_PERSISTENT), the textrun will copy it. This calls FetchGlyphExtents on the textrun.

void gfxFontGroup::SetUserFontSet

(

gfxUserFontSet *

aUserFontSet

)

[protected]

static void gfxFontGroup::Shutdown

(

)

[static]

Reimplemented in gfxPangoFontGroup.

virtual void gfxFontGroup::UpdateFontList

(

)

[virtual]

Reimplemented in gfxPangoFontGroup.

virtual already_AddRefed<gfxFont> gfxFontGroup::WhichPrefFontSupportsChar

(

PRUint32

aCh

)

[virtual]

virtual already_AddRefed<gfxFont> gfxFontGroup::WhichSystemFontSupportsChar

(

PRUint32

aCh

)

[virtual]

---

Member Data Documentation

nsILanguageAtomService* gfxFontGroup::gLangService [static, protected]

PRUint64 gfxFontGroup::mCurrGeneration [protected]

nsString_external gfxFontGroup::mFamilies [protected]

nsTArray< nsRefPtr<gfxFont> > gfxFontGroup::mFonts [protected]

nsRefPtr<gfxFontFamily> gfxFontGroup::mLastPrefFamily [protected]

PRBool gfxFontGroup::mLastPrefFirstFont [protected]

nsRefPtr<gfxFont> gfxFontGroup::mLastPrefFont [protected]

eFontPrefLang gfxFontGroup::mLastPrefLang [protected]

eFontPrefLang gfxFontGroup::mPageLang [protected]

gfxFontStyle gfxFontGroup::mStyle [protected]

gfxFloat gfxFontGroup::mUnderlineOffset [protected]

gfxUserFontSet* gfxFontGroup::mUserFontSet [protected]

---

The documentation for this class was generated from the following file:

• gfxFont.h