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/*
* Copyright 2011 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SFNTLY_CPP_SRC_SFNTLY_TOOLS_SUBSETTER_SUBSETTER_H_
#define SFNTLY_CPP_SRC_SFNTLY_TOOLS_SUBSETTER_SUBSETTER_H_
#include <vector>
#include "sfntly/font.h"
#include "sfntly/font_factory.h"
#include "sfntly/table/core/cmap_table.h"
#include "sfntly/tools/subsetter/table_subsetter.h"
namespace sfntly {
class Subsetter : public RefCounted<Subsetter> {
public:
Subsetter(Font* font, FontFactory* font_factory);
virtual ~Subsetter();
virtual void SetGlyphs(IntegerList* glyphs);
// Set the cmaps to be used in the subsetted font. The cmaps are listed in
// order of priority and the number parameter gives a count of how many of the
// list should be put into the subsetted font. If there are no matches in the
// font for any of the provided cmap ids which would lead to a font with no
// cmap then an error will be thrown during subsetting.
// The two most common cases would be: <list>
// * a list of one or more cmap ids with a count setting of 1
// This will use the list of cmap ids as an ordered priority and look for
// an available cmap in the font that matches the requests. Only the first
// such match will be placed in the subsetted font.
// * a list of one or more cmap ids with a count setting equal to the list
// length
// This will use the list of cmap ids and try to place each one specified
// into the subsetted font.
// @param cmapIds the cmap ids to use for the subsetted font
// @param number the maximum number of cmaps to place in the subsetted font
virtual void SetCMaps(CMapIdList* cmap_ids, int32_t number);
virtual void SetRemoveTables(IntegerSet* remove_tables);
virtual CALLER_ATTACH Font::Builder* Subset();
virtual IntegerList* GlyphPermutationTable();
virtual CMapIdList* CMapId();
private:
FontPtr font_;
FontFactoryPtr font_factory_;
TableSubsetterList table_subsetters_;
// Settings from user
IntegerSet remove_tables_;
IntegerList new_to_old_glyphs_;
CMapIdList cmap_ids_;
};
} // namespace sfntly
#endif // SFNTLY_CPP_SRC_SFNTLY_TOOLS_SUBSETTER_SUBSETTER_H_
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