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/**
* @file llfontregistry.h
* @author Brad Payne
* @brief Storage for fonts.
*
* $LicenseInfo:firstyear=2008&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_LLFONTREGISTRY_H
#define LL_LLFONTREGISTRY_H
#include "llpointer.h"
class LLFontGL;
typedef std::vector<std::string> string_vec_t;
struct LLFontFileInfo
{
LLFontFileInfo(const std::string& file_name, const std::function<bool(llwchar)>& char_functor = nullptr)
: FileName(file_name)
, CharFunctor(char_functor)
{
}
LLFontFileInfo(const LLFontFileInfo& ffi)
: FileName(ffi.FileName)
, CharFunctor(ffi.CharFunctor)
{
}
std::string FileName;
std::function<bool(llwchar)> CharFunctor;
};
typedef std::vector<LLFontFileInfo> font_file_info_vec_t;
class LLFontDescriptor
{
public:
LLFontDescriptor();
LLFontDescriptor(const std::string& name, const std::string& size, const U8 style);
LLFontDescriptor(const std::string& name, const std::string& size, const U8 style, const font_file_info_vec_t& font_list);
LLFontDescriptor(const std::string& name, const std::string& size, const U8 style, const font_file_info_vec_t& font_list, const font_file_info_vec_t& font_collection_list);
LLFontDescriptor normalize() const;
bool operator<(const LLFontDescriptor& b) const;
bool isTemplate() const;
const std::string& getName() const { return mName; }
void setName(const std::string& name) { mName = name; }
const std::string& getSize() const { return mSize; }
void setSize(const std::string& size) { mSize = size; }
void addFontFile(const std::string& file_name, const std::string& char_functor = LLStringUtil::null);
const font_file_info_vec_t & getFontFiles() const { return mFontFiles; }
void setFontFiles(const font_file_info_vec_t& font_files) { mFontFiles = font_files; }
void addFontCollectionFile(const std::string& file_name, const std::string& char_functor = LLStringUtil::null);
const font_file_info_vec_t& getFontCollectionFiles() const { return mFontCollectionFiles; }
void setFontCollectionFiles(const font_file_info_vec_t& font_collection_files) { mFontCollectionFiles = font_collection_files; }
const U8 getStyle() const { return mStyle; }
void setStyle(U8 style) { mStyle = style; }
private:
std::string mName;
std::string mSize;
font_file_info_vec_t mFontFiles;
font_file_info_vec_t mFontCollectionFiles;
U8 mStyle;
typedef std::map<std::string, std::function<bool(llwchar)>> char_functor_map_t;
static char_functor_map_t mCharFunctors;
};
class LLFontRegistry
{
public:
friend bool init_from_xml(LLFontRegistry*, LLPointer<class LLXMLNode>);
// create_gl_textures - set to false for test apps with no OpenGL window,
// such as llui_libtest
LLFontRegistry(bool create_gl_textures);
~LLFontRegistry();
// Load standard font info from XML file(s).
bool parseFontInfo(const std::string& xml_filename);
// Clear cached glyphs for all fonts.
void reset();
// Destroy all fonts.
void clear();
// GL cleanup
void destroyGL();
LLFontGL *getFont(const LLFontDescriptor& desc);
const LLFontDescriptor *getMatchingFontDesc(const LLFontDescriptor& desc);
const LLFontDescriptor *getClosestFontTemplate(const LLFontDescriptor& desc);
bool nameToSize(const std::string& size_name, F32& size);
void dump();
void dumpTextures();
const string_vec_t& getUltimateFallbackList() const;
private:
LLFontRegistry(const LLFontRegistry& other); // no-copy
LLFontGL *createFont(const LLFontDescriptor& desc);
typedef std::map<LLFontDescriptor,LLFontGL*> font_reg_map_t;
typedef std::map<std::string,F32> font_size_map_t;
// Given a descriptor, look up specific font instantiation.
font_reg_map_t mFontMap;
// Given a size name, look up the point size.
font_size_map_t mFontSizes;
string_vec_t mUltimateFallbackList;
bool mCreateGLTextures;
};
#endif // LL_LLFONTREGISTRY_H
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