chromium/third_party/pdfium/public/fpdf_sysfontinfo.h

// Copyright 2014 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com

#ifndef PUBLIC_FPDF_SYSFONTINFO_H_
#define PUBLIC_FPDF_SYSFONTINFO_H_

#include <stddef.h>

// clang-format off
// NOLINTNEXTLINE(build/include)
#include "fpdfview.h"

// Character sets for the font
#define FXFONT_ANSI_CHARSET …
#define FXFONT_DEFAULT_CHARSET …
#define FXFONT_SYMBOL_CHARSET …
#define FXFONT_SHIFTJIS_CHARSET …
#define FXFONT_HANGEUL_CHARSET …
#define FXFONT_GB2312_CHARSET …
#define FXFONT_CHINESEBIG5_CHARSET …
#define FXFONT_GREEK_CHARSET …
#define FXFONT_VIETNAMESE_CHARSET …
#define FXFONT_HEBREW_CHARSET …
#define FXFONT_ARABIC_CHARSET …
#define FXFONT_CYRILLIC_CHARSET …
#define FXFONT_THAI_CHARSET …
#define FXFONT_EASTERNEUROPEAN_CHARSET …

// Font pitch and family flags
#define FXFONT_FF_FIXEDPITCH …
#define FXFONT_FF_ROMAN …
#define FXFONT_FF_SCRIPT …

// Typical weight values
#define FXFONT_FW_NORMAL …
#define FXFONT_FW_BOLD …

// Exported Functions
#ifdef __cplusplus
extern "C" {
#endif

// Interface: FPDF_SYSFONTINFO
//          Interface for getting system font information and font mapping
FPDF_SYSFONTINFO;

// Struct: FPDF_CharsetFontMap
//    Provides the name of a font to use for a given charset value.
FPDF_CharsetFontMap;

// Function: FPDF_GetDefaultTTFMap
//    Returns a pointer to the default character set to TT Font name map. The
//    map is an array of FPDF_CharsetFontMap structs, with its end indicated
//    by a { -1, NULL } entry.
// Parameters:
//     None.
// Return Value:
//     Pointer to the Charset Font Map.
// Note:
//     Once FPDF_GetDefaultTTFMapCount() and FPDF_GetDefaultTTFMapEntry() are no
//     longer experimental, this API will be marked as deprecated.
//     See https://crbug.com/348468114
FPDF_EXPORT const FPDF_CharsetFontMap* FPDF_CALLCONV FPDF_GetDefaultTTFMap();

// Experimental API.
//
// Function: FPDF_GetDefaultTTFMapCount
//    Returns the number of entries in the default character set to TT Font name
//    map.
// Parameters:
//    None.
// Return Value:
//    The number of entries in the map.
FPDF_EXPORT size_t FPDF_CALLCONV FPDF_GetDefaultTTFMapCount();

// Experimental API.
//
// Function: FPDF_GetDefaultTTFMapEntry
//    Returns an entry in the default character set to TT Font name map.
// Parameters:
//    index    -   The index to the entry in the map to retrieve.
// Return Value:
//     A pointer to the entry, if it is in the map, or NULL if the index is out
//     of bounds.
FPDF_EXPORT const FPDF_CharsetFontMap* FPDF_CALLCONV
FPDF_GetDefaultTTFMapEntry(size_t index);

// Function: FPDF_AddInstalledFont
//          Add a system font to the list in PDFium.
// Comments:
//          This function is only called during the system font list building
//          process.
// Parameters:
//          mapper          -   Opaque pointer to Foxit font mapper
//          face            -   The font face name
//          charset         -   Font character set. See above defined constants.
// Return Value:
//          None.
FPDF_EXPORT void FPDF_CALLCONV FPDF_AddInstalledFont(void* mapper,
                                                     const char* face,
                                                     int charset);

// Function: FPDF_SetSystemFontInfo
//          Set the system font info interface into PDFium
// Parameters:
//          pFontInfo       -   Pointer to a FPDF_SYSFONTINFO structure
// Return Value:
//          None
// Comments:
//          Platform support implementation should implement required methods of
//          FFDF_SYSFONTINFO interface, then call this function during PDFium
//          initialization process.
//
//          Call this with NULL to tell PDFium to stop using a previously set
//          |FPDF_SYSFONTINFO|.
FPDF_EXPORT void FPDF_CALLCONV
FPDF_SetSystemFontInfo(FPDF_SYSFONTINFO* pFontInfo);

// Function: FPDF_GetDefaultSystemFontInfo
//          Get default system font info interface for current platform
// Parameters:
//          None
// Return Value:
//          Pointer to a FPDF_SYSFONTINFO structure describing the default
//          interface, or NULL if the platform doesn't have a default interface.
//          Application should call FPDF_FreeDefaultSystemFontInfo to free the
//          returned pointer.
// Comments:
//          For some platforms, PDFium implements a default version of system
//          font info interface. The default implementation can be passed to
//          FPDF_SetSystemFontInfo().
FPDF_EXPORT FPDF_SYSFONTINFO* FPDF_CALLCONV FPDF_GetDefaultSystemFontInfo();

// Function: FPDF_FreeDefaultSystemFontInfo
//           Free a default system font info interface
// Parameters:
//           pFontInfo       -   Pointer to a FPDF_SYSFONTINFO structure
// Return Value:
//           None
// Comments:
//           This function should be called on the output from
//           FPDF_GetDefaultSystemFontInfo() once it is no longer needed.
FPDF_EXPORT void FPDF_CALLCONV
FPDF_FreeDefaultSystemFontInfo(FPDF_SYSFONTINFO* pFontInfo);

#ifdef __cplusplus
}
#endif

#endif  // PUBLIC_FPDF_SYSFONTINFO_H_