/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: NPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Netscape Public License * Version 1.1 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://www.mozilla.org/NPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is mozilla.org code. * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1998 * the Initial Developer. All Rights Reserved. * * Contributor(s): * Tony Tsui * Tim Copperfield * Roland Mainz * * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the NPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the NPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #ifndef nsFontMetricsXlib_h__ #define nsFontMetricsXlib_h__ #include "nsICharRepresentable.h" #include "nsCompressedCharMap.h" #include "nsDeviceContextX.h" #include "nsIFontMetrics.h" #include "nsIFontEnumerator.h" #include "nsCOMPtr.h" #include "nsDrawingSurfaceXlib.h" #include "nsFont.h" #include "nsRenderingContextXlib.h" #include "nsString.h" #include "nsUnitConversion.h" #undef FONT_HAS_GLYPH #define FONT_HAS_GLYPH(map, char) IS_REPRESENTABLE(map, char) typedef struct nsFontCharSetXlibInfo nsFontCharSetXlibInfo; typedef int (*nsFontCharSetXlibConverter)(nsFontCharSetXlibInfo* aSelf, XFontStruct* aFont, const PRUnichar* aSrcBuf, PRInt32 aSrcLen, char* aDestBuf, PRInt32 aDestLen); struct nsFontCharSetXlib; struct nsFontFamilyXlib; struct nsFontNodeXlib; struct nsFontStretchXlib; class nsFontXlibUserDefined; class nsFontMetricsXlib; typedef XFontStruct *XFontStructPtr; class nsFontXlib { public: nsFontXlib(); virtual ~nsFontXlib(); NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW operator const XFontStructPtr() { return (const XFontStructPtr)mFont; } void LoadFont(void); PRBool IsEmptyFont(XFontStruct*); inline int SupportsChar(PRUnichar aChar) { return mFont && CCMAP_HAS_CHAR(mCCMap, aChar); }; virtual PRBool GetXlibFontIs10646(void); virtual int GetWidth(const PRUnichar* aString, PRUint32 aLength) = 0; virtual int DrawString(nsRenderingContextXlib* aContext, nsIDrawingSurfaceXlib* aSurface, nscoord aX, nscoord aY, const PRUnichar* aString, PRUint32 aLength) = 0; #ifdef MOZ_MATHML // bounding metrics for a string // remember returned values are not in app units // - to emulate GetWidth () above virtual nsresult GetBoundingMetrics(const PRUnichar* aString, PRUint32 aLength, nsBoundingMetrics& aBoundingMetrics) = 0; #endif /* MOZ_MATHML */ XFontStruct *mFont; PRUint16 *mCCMap; nsFontCharSetXlibInfo *mCharSetInfo; char *mName; nsFontXlibUserDefined *mUserDefinedFont; PRUint16 mSize; PRInt16 mBaselineAdjust; PRBool mAlreadyCalledLoadFont; // these values are not in app units, they need to be scaled with // nsIDeviceContext::GetDevUnitsToAppUnits() PRInt16 mMaxAscent; PRInt16 mMaxDescent; }; class nsFontMetricsXlib : public nsIFontMetrics { public: nsFontMetricsXlib(); virtual ~nsFontMetricsXlib(); #ifdef USE_XPRINT static void EnablePrinterMode(PRBool printermode); #endif /* USE_XPRINT */ static nsresult InitGlobals(nsIDeviceContext *); static void FreeGlobals(void); NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW NS_DECL_ISUPPORTS NS_IMETHOD Init(const nsFont& aFont, nsIAtom* aLangGroup, nsIDeviceContext* aContext); NS_IMETHOD Destroy(); NS_IMETHOD GetXHeight(nscoord& aResult); NS_IMETHOD GetSuperscriptOffset(nscoord& aResult); NS_IMETHOD GetSubscriptOffset(nscoord& aResult); NS_IMETHOD GetStrikeout(nscoord& aOffset, nscoord& aSize); NS_IMETHOD GetUnderline(nscoord& aOffset, nscoord& aSize); NS_IMETHOD GetHeight(nscoord &aHeight); NS_IMETHOD GetNormalLineHeight(nscoord &aHeight); NS_IMETHOD GetLeading(nscoord &aLeading); NS_IMETHOD GetEmHeight(nscoord &aHeight); NS_IMETHOD GetEmAscent(nscoord &aAscent); NS_IMETHOD GetEmDescent(nscoord &aDescent); NS_IMETHOD GetMaxHeight(nscoord &aHeight); NS_IMETHOD GetMaxAscent(nscoord &aAscent); NS_IMETHOD GetMaxDescent(nscoord &aDescent); NS_IMETHOD GetMaxAdvance(nscoord &aAdvance); NS_IMETHOD GetFont(const nsFont *&aFont); NS_IMETHOD GetLangGroup(nsIAtom** aLangGroup); NS_IMETHOD GetFontHandle(nsFontHandle &aHandle); NS_IMETHOD GetSpaceWidth(nscoord &aSpaceWidth); nsFontXlib* FindFont(PRUnichar aChar); nsFontXlib* FindUserDefinedFont(PRUnichar aChar); nsFontXlib* FindStyleSheetSpecificFont(PRUnichar aChar); nsFontXlib* FindStyleSheetGenericFont(PRUnichar aChar); nsFontXlib* FindLangGroupPrefFont(nsIAtom* aLangGroup, PRUnichar aChar); nsFontXlib* FindLangGroupFont(nsIAtom* aLangGroup, PRUnichar aChar, nsCString* aName); nsFontXlib* FindAnyFont(PRUnichar aChar); nsFontXlib* FindSubstituteFont(PRUnichar aChar); nsFontXlib* SearchNode(nsFontNodeXlib* aNode, PRUnichar aChar); nsFontXlib* TryAliases(nsCString* aName, PRUnichar aChar); nsFontXlib* TryFamily(nsCString* aName, PRUnichar aChar); nsFontXlib* TryNode(nsCString* aName, PRUnichar aChar); nsFontXlib* TryNodes(nsAWritableCString &aFFREName, PRUnichar aChar); nsFontXlib* TryLangGroup(nsIAtom* aLangGroup, nsCString* aName, PRUnichar aChar); nsFontXlib* AddToLoadedFontsList(nsFontXlib* aFont); nsFontXlib* PickASizeAndLoad(nsFontStretchXlib* aStretch, nsFontCharSetXlibInfo* aCharSet, PRUnichar aChar); static nsresult FamilyExists(nsIDeviceContext*, const nsString& aFontName); nsCAutoString mDefaultFont; nsCString *mGeneric; PRUint8 mIsUserDefined; nsCOMPtr mLangGroup; nsCAutoString mUserDefined; nsCStringArray mFonts; PRUint16 mFontsAlloc; PRUint16 mFontsCount; PRUint16 mFontsIndex; nsAutoVoidArray mFontIsGeneric; nsFontXlib **mLoadedFonts; PRUint16 mLoadedFontsAlloc; PRUint16 mLoadedFontsCount; PRUint8 mTriedAllGenerics; nsFontXlib *mSubstituteFont; protected: void RealizeFont(); nsIDeviceContext *mDeviceContext; nsFont *mFont; XFontStruct *mFontHandle; XFontStruct *mFontStruct; nsFontXlib *mWesternFont; nscoord mAscent; nscoord mDescent; nscoord mLeading; nscoord mEmHeight; nscoord mEmAscent; nscoord mEmDescent; nscoord mMaxHeight; nscoord mMaxAscent; nscoord mMaxDescent; nscoord mMaxAdvance; nscoord mXHeight; nscoord mSuperscriptOffset; nscoord mSubscriptOffset; nscoord mStrikeoutSize; nscoord mStrikeoutOffset; nscoord mUnderlineSize; nscoord mUnderlineOffset; nscoord mSpaceWidth; PRUint16 mPixelSize; PRUint8 mStretchIndex; PRUint8 mStyleIndex; nsFontCharSetXlibConverter mDocConverterType; #ifdef USE_XPRINT public: static PRPackedBool mPrinterMode; #endif /* USE_XPRINT */ }; class nsFontEnumeratorXlib : public nsIFontEnumerator { public: nsFontEnumeratorXlib(); NS_DECL_ISUPPORTS NS_DECL_NSIFONTENUMERATOR }; #endif /* !nsFontMetricsXlib_h__ */