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nsXFont.h
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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00003 /* ***** BEGIN LICENSE BLOCK *****
00004  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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00006  * The contents of this file are subject to the Mozilla Public License Version
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00011  * Software distributed under the License is distributed on an "AS IS" basis,
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00015  *
00016  * The Original Code is mozilla.org code.
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00018  * The Initial Developer of the Original Code is
00019  * Netscape Communications Corporation.
00020  * Portions created by the Initial Developer are Copyright (C) 2001
00021  * the Initial Developer. All Rights Reserved.
00022  *
00023  * Contributor(s):
00024  *   Brian Stell <bstell@netscape.com>
00025  *
00026  * Alternatively, the contents of this file may be used under the terms of
00027  * either of the GNU General Public License Version 2 or later (the "GPL"),
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00038  * ***** END LICENSE BLOCK ***** */
00039 
00040 #ifndef nsXFont_h__
00041 #define nsXFont_h__
00042 
00043 class nsXFont {
00044 public:
00045   virtual ~nsXFont() { };
00046   virtual void         DrawText8(GdkDrawable *Drawable, GdkGC *GC, PRInt32,
00047                                  PRInt32, const char *, PRUint32) = 0;
00048   virtual void         DrawText16(GdkDrawable *Drawable, GdkGC *GC, PRInt32,
00049                                   PRInt32, const XChar2b *, PRUint32) = 0;
00050   virtual PRBool       GetXFontProperty(Atom, unsigned long *) = 0;
00051   virtual XFontStruct *GetXFontStruct() = 0;
00052   inline  PRBool       IsSingleByte() { return mIsSingleByte; };
00053   virtual PRBool       LoadFont() = 0;
00054   virtual void         TextExtents8(const char *, PRUint32, PRInt32*, PRInt32*,
00055                                    PRInt32*, PRInt32*, PRInt32*) = 0;
00056   virtual void         TextExtents16(const XChar2b *, PRUint32, PRInt32*,
00057                                      PRInt32*, PRInt32*, PRInt32*, PRInt32*) =0;
00058   virtual PRInt32      TextWidth8(const char *, PRUint32) = 0;
00059   virtual PRInt32      TextWidth16(const XChar2b *, PRUint32) = 0;
00060 //protected:
00061   virtual void         UnloadFont() = 0;
00062 protected:
00063   PRBool mIsSingleByte;
00064 };
00065 
00066 #endif /* nsXFont_h__ */