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125 lines
5.3 KiB
C++
125 lines
5.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Novell code.
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*
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* The Initial Developer of the Original Code is Novell Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2006
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* robert@ocallahan.org
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef NSTEXTRUNTRANSFORMATIONS_H_
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#define NSTEXTRUNTRANSFORMATIONS_H_
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#include "gfxFont.h"
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class nsCaseTransformingTextRun;
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class nsStyleContext;
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class nsTransformingTextRunFactory : public gfxTextRunFactory {
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public:
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nsTransformingTextRunFactory(gfxTextRunFactory* aInnerTextRunFactory,
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nsTransformingTextRunFactory* aInnerTransformingTextRunFactory)
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: mInnerTextRunFactory(aInnerTextRunFactory),
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mInnerTransformingTextRunFactory(aInnerTransformingTextRunFactory),
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mStyles(nsnull) {}
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// Assign style contexts to each character in the string. Call this before
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// calling MakeTextRun. The array needs to have a lifetime covering the
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// call to MakeTextRun.
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virtual void SetStyles(nsStyleContext** aStyles) { mStyles = aStyles; }
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// Default 8-bit path just transforms to Unicode and takes that path
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virtual gfxTextRun* MakeTextRun(const PRUint8* aString, PRUint32 aLength,
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Parameters* aParams);
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// Redeclare this to make C++ compiler shut up
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virtual gfxTextRun* MakeTextRun(const PRUnichar* aString, PRUint32 aLength,
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Parameters* aParams) = 0;
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protected:
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nsRefPtr<gfxTextRunFactory> mInnerTextRunFactory;
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nsRefPtr<nsTransformingTextRunFactory> mInnerTransformingTextRunFactory;
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nsStyleContext** mStyles;
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};
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/**
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* Builds textruns that render their text using a font-variant (i.e.,
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* smallcaps).
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*/
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class nsFontVariantTextRunFactory : public nsTransformingTextRunFactory {
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public:
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nsFontVariantTextRunFactory(gfxFontGroup* aFontGroup)
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: nsTransformingTextRunFactory(aFontGroup, nsnull), mFontGroup(aFontGroup) {}
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// Redeclare this to make C++ compiler shut up
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virtual gfxTextRun* MakeTextRun(const PRUint8* aString, PRUint32 aLength,
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Parameters* aParams) {
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return nsTransformingTextRunFactory::MakeTextRun(aString, aLength, aParams);
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}
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virtual gfxTextRun* MakeTextRun(const PRUnichar* aString, PRUint32 aLength,
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Parameters* aParams);
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private:
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nsRefPtr<gfxFontGroup> mFontGroup;
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};
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/**
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* Builds textruns that transform the text in some way (e.g., capitalize)
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* and then render the text using some other textrun implementation.
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*/
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class nsCaseTransformTextRunFactory : public nsTransformingTextRunFactory {
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public:
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nsCaseTransformTextRunFactory(gfxTextRunFactory* aInnerTextRunFactory,
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nsTransformingTextRunFactory* aInnerTransformingTextRunFactory,
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PRBool aAllUppercase = PR_FALSE)
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: nsTransformingTextRunFactory(aInnerTextRunFactory, aInnerTransformingTextRunFactory),
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mAllUppercase(aAllUppercase) {}
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// Redeclare this to make C++ compiler shut up
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virtual gfxTextRun* MakeTextRun(const PRUint8* aString, PRUint32 aLength,
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Parameters* aParams) {
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return nsTransformingTextRunFactory::MakeTextRun(aString, aLength, aParams);
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}
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virtual gfxTextRun* MakeTextRun(const PRUnichar* aString, PRUint32 aLength,
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Parameters* aParams);
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// We need these for the implementation of case-transforming text runs
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gfxTextRunFactory* GetInnerTextRunFactory() { return mInnerTextRunFactory; }
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nsTransformingTextRunFactory* GetInnerTransformingTextRunFactory() {
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return mInnerTransformingTextRunFactory;
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}
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nsStyleContext** GetStyles() { return mStyles; }
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PRBool IsAllUppercase() { return mAllUppercase; }
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private:
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PRPackedBool mAllUppercase;
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};
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#endif /*NSTEXTRUNTRANSFORMATIONS_H_*/
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