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// Copyright 2014 PDFium Authors. All rights reserved.
// 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 CORE_FXGE_FX_FONT_H_
#define CORE_FXGE_FX_FONT_H_
#include <memory>
#include <utility>
#include <vector>
#include "core/fxcrt/fx_system.h"
#include "core/fxcrt/unowned_ptr.h"
#include "core/fxge/cfx_substfont.h"
#include "core/fxge/dib/cfx_dibitmap.h"
#include "core/fxge/fx_dib.h"
#include "core/fxge/fx_freetype.h"
#if defined _SKIA_SUPPORT_ || defined _SKIA_SUPPORT_PATHS_
class SkTypeface;
using CFX_TypeFace = SkTypeface;
#endif
/* Font pitch and family flags */
#define FXFONT_FF_FIXEDPITCH (1 << 0)
#define FXFONT_FF_ROMAN (1 << 4)
#define FXFONT_FF_SCRIPT (4 << 4)
/* Typical weight values */
#define FXFONT_FW_NORMAL 400
#define FXFONT_FW_BOLD 700
/* Font styles as defined in PDF 1.7 Table 5.20 */
#define FXFONT_FIXED_PITCH (1 << 0)
#define FXFONT_SERIF (1 << 1)
#define FXFONT_SYMBOLIC (1 << 2)
#define FXFONT_SCRIPT (1 << 3)
#define FXFONT_NONSYMBOLIC (1 << 5)
#define FXFONT_ITALIC (1 << 6)
#define FXFONT_ALLCAP (1 << 16)
#define FXFONT_SMALLCAP (1 << 17)
#define FXFONT_BOLD (1 << 18)
/* Other font flags */
#define FXFONT_USEEXTERNATTR 0x80000
#define FXFONT_CIDFONT 0x100000
#ifdef PDF_ENABLE_XFA
#define FXFONT_EXACTMATCH 0x80000000
#endif // PDF_ENABLE_XFA
#define GET_TT_SHORT(w) (uint16_t)(((w)[0] << 8) | (w)[1])
#define GET_TT_LONG(w) \
(uint32_t)(((w)[0] << 24) | ((w)[1] << 16) | ((w)[2] << 8) | (w)[3])
// Sets the given transform on the font, and resets it to the identity when it
// goes out of scope.
class ScopedFontTransform {
public:
ScopedFontTransform(FT_Face face, FXFT_Matrix* matrix);
~ScopedFontTransform();
private:
FT_Face m_Face;
};
class CFX_GlyphBitmap {
public:
CFX_GlyphBitmap();
~CFX_GlyphBitmap();
int m_Top;
int m_Left;
RetainPtr<CFX_DIBitmap> m_pBitmap;
};
inline CFX_GlyphBitmap::CFX_GlyphBitmap()
: m_pBitmap(pdfium::MakeRetain<CFX_DIBitmap>()) {}
inline CFX_GlyphBitmap::~CFX_GlyphBitmap() {}
class FXTEXT_GLYPHPOS {
public:
FXTEXT_GLYPHPOS();
FXTEXT_GLYPHPOS(const FXTEXT_GLYPHPOS&);
~FXTEXT_GLYPHPOS();
const CFX_GlyphBitmap* m_pGlyph;
CFX_Point m_Origin;
CFX_PointF m_fOrigin;
};
FX_RECT FXGE_GetGlyphsBBox(const std::vector<FXTEXT_GLYPHPOS>& glyphs,
int anti_alias,
float retinaScaleX,
float retinaScaleY);
ByteString GetNameFromTT(const uint8_t* name_table,
uint32_t name_table_size,
uint32_t name);
int PDF_GetStandardFontName(ByteString* name);
#endif // CORE_FXGE_FX_FONT_H_
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