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/*
* Copyright (c) 2006, 2007, 2008, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_FONTS_FONT_PLATFORM_DATA_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_FONTS_FONT_PLATFORM_DATA_H_
#include "SkPaint.h"
#include "SkTypeface.h"
#include "base/memory/scoped_refptr.h"
#include "build/build_config.h"
#include "third_party/blink/public/platform/web_font_render_style.h"
#include "third_party/blink/renderer/platform/fonts/font_description.h"
#include "third_party/blink/renderer/platform/fonts/font_orientation.h"
#include "third_party/blink/renderer/platform/fonts/small_caps_iterator.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/allocator.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"
#include "third_party/blink/renderer/platform/wtf/hash_table_deleted_value_type.h"
#include "third_party/blink/renderer/platform/wtf/text/cstring.h"
#include "third_party/blink/renderer/platform/wtf/text/string_impl.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"
#include "third_party/skia/include/core/SkRefCnt.h"
#include "third_party/skia/include/core/SkTypeface.h"
#if defined(OS_MACOSX)
OBJC_CLASS NSFont;
typedef struct CGFont* CGFontRef;
typedef const struct __CTFont* CTFontRef;
#include <objc/objc-auto.h>
inline CTFontRef toCTFontRef(NSFont* nsFont) {
return reinterpret_cast<CTFontRef>(nsFont);
}
inline NSFont* toNSFont(CTFontRef ctFontRef) {
return const_cast<NSFont*>(reinterpret_cast<const NSFont*>(ctFontRef));
}
#endif // defined(OS_MACOSX)
class SkFont;
class SkTypeface;
typedef uint32_t SkFontID;
namespace blink {
class Font;
class HarfBuzzFace;
class FontVariationSettings;
class PLATFORM_EXPORT FontPlatformData {
USING_FAST_MALLOC(FontPlatformData);
public:
// Used for deleted values in the font cache's hash tables. The hash table
// will create us with this structure, and it will compare other values
// to this "Deleted" one. It expects the Deleted one to be differentiable
// from the 0 one (created with the empty constructor), so we can't just
// set everything to 0.
FontPlatformData(WTF::HashTableDeletedValueType);
FontPlatformData();
FontPlatformData(const FontPlatformData&);
FontPlatformData(float size,
bool synthetic_bold,
bool synthetic_italic,
FontOrientation = FontOrientation::kHorizontal);
FontPlatformData(const FontPlatformData& src, float text_size);
#if defined(OS_MACOSX)
FontPlatformData(NSFont*,
float size,
bool synthetic_bold,
bool synthetic_italic,
FontOrientation,
FontVariationSettings*);
#endif
FontPlatformData(const sk_sp<SkTypeface>,
const CString& name,
float text_size,
bool synthetic_bold,
bool synthetic_italic,
FontOrientation = FontOrientation::kHorizontal);
~FontPlatformData();
#if defined(OS_MACOSX)
// These methods return a nullptr for FreeType backed SkTypefaces, compare
// FontCustomPlatformData, which are used for variable fonts on Mac OS <
// 10.12. They should not return nullptr otherwise. So they allow
// distinguishing which backend the SkTypeface is using.
CTFontRef CtFont() const;
CGFontRef CgFont() const;
#endif
String FontFamilyName() const;
float size() const { return text_size_; }
bool SyntheticBold() const { return synthetic_bold_; }
bool SyntheticItalic() const { return synthetic_italic_; }
SkTypeface* Typeface() const;
HarfBuzzFace* GetHarfBuzzFace() const;
bool HasSpaceInLigaturesOrKerning(TypesettingFeatures) const;
SkFontID UniqueID() const;
unsigned GetHash() const;
FontOrientation Orientation() const { return orientation_; }
bool IsVerticalAnyUpright() const {
return blink::IsVerticalAnyUpright(orientation_);
}
void SetOrientation(FontOrientation orientation) {
orientation_ = orientation;
}
void SetSyntheticBold(bool synthetic_bold) {
synthetic_bold_ = synthetic_bold;
}
void SetSyntheticItalic(bool synthetic_italic) {
synthetic_italic_ = synthetic_italic;
}
void SetAvoidEmbeddedBitmaps(bool embedded_bitmaps) {
avoid_embedded_bitmaps_ = embedded_bitmaps;
}
bool operator==(const FontPlatformData&) const;
const FontPlatformData& operator=(const FontPlatformData&);
bool IsHashTableDeletedValue() const { return is_hash_table_deleted_value_; }
bool FontContainsCharacter(UChar32 character);
#if !defined(OS_WIN) && !defined(OS_MACOSX)
const WebFontRenderStyle& GetFontRenderStyle() const { return style_; }
#endif
// TODO(reed): SetupSkPaint is deprecated. Remove this once all call sites
// are moved to SetupSkFont.
void SetupSkPaint(SkPaint*,
float device_scale_factor = 1,
const Font* = nullptr) const;
void SetupSkFont(SkFont*,
float device_scale_factor = 1,
const Font* = nullptr) const;
#if defined(OS_WIN)
int PaintTextFlags() const { return paint_text_flags_; }
#endif
private:
#if !defined(OS_WIN) && !defined(OS_MACOSX)
WebFontRenderStyle QuerySystemRenderStyle(const CString& family,
float text_size,
SkFontStyle);
#endif
#if defined(OS_WIN)
// TODO(https://crbug.com/808221): Remove and use QuerySystemRenderStyle()
// instead.
void QuerySystemForRenderStyle();
#endif
sk_sp<SkTypeface> typeface_;
#if !defined(OS_WIN)
CString family_;
#endif
public:
float text_size_;
bool synthetic_bold_;
bool synthetic_italic_;
bool avoid_embedded_bitmaps_;
FontOrientation orientation_;
private:
#if !defined(OS_WIN) && !defined(OS_MACOSX)
WebFontRenderStyle style_;
#endif
mutable scoped_refptr<HarfBuzzFace> harfbuzz_face_;
bool is_hash_table_deleted_value_;
#if defined(OS_WIN)
// TODO(https://crbug.com/808221): Replace |paint_text_flags_| with |style_|.
int paint_text_flags_;
#endif
};
} // namespace blink
#endif // ifdef FontPlatformData_h
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