| /* |
| * Copyright (C) 2012 Koji Ishii <kojiishi@gmail.com> |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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_OPENTYPE_OPEN_TYPE_VERTICAL_DATA_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_FONTS_OPENTYPE_OPEN_TYPE_VERTICAL_DATA_H_ |
| |
| #include "base/memory/scoped_refptr.h" |
| #include "third_party/blink/renderer/platform/fonts/glyph.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/hash_map.h" |
| #include "third_party/blink/renderer/platform/wtf/ref_counted.h" |
| #include "third_party/blink/renderer/platform/wtf/vector.h" |
| |
| #include <SkRefCnt.h> |
| #include <SkTypeface.h> |
| |
| class SkFont; |
| |
| namespace blink { |
| |
| class PLATFORM_EXPORT OpenTypeVerticalData |
| : public RefCounted<OpenTypeVerticalData> { |
| public: |
| static scoped_refptr<OpenTypeVerticalData> CreateUnscaled( |
| sk_sp<SkTypeface> typeface) { |
| return base::AdoptRef(new OpenTypeVerticalData(typeface)); |
| } |
| |
| void SetScaleAndFallbackMetrics(float size_per_unit, |
| float ascent, |
| int height); |
| |
| bool IsOpenType() const { return !advance_widths_.IsEmpty(); } |
| bool HasVerticalMetrics() const { return !advance_heights_.IsEmpty(); } |
| float AdvanceHeight(Glyph) const; |
| |
| void GetVerticalTranslationsForGlyphs(const SkFont&, |
| const Glyph*, |
| size_t, |
| float* out_xy_array) const; |
| |
| private: |
| explicit OpenTypeVerticalData(sk_sp<SkTypeface>); |
| |
| void LoadMetrics(sk_sp<SkTypeface>); |
| bool HasVORG() const { return !vert_origin_y_.IsEmpty(); } |
| |
| HashMap<Glyph, Glyph> vertical_glyph_map_; |
| Vector<uint16_t> advance_widths_; |
| Vector<uint16_t> advance_heights_; |
| Vector<int16_t> top_side_bearings_; |
| int16_t default_vert_origin_y_; |
| HashMap<Glyph, int16_t> vert_origin_y_; |
| |
| float size_per_unit_; |
| float ascent_fallback_; |
| int height_fallback_; |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_FONTS_OPENTYPE_OPEN_TYPE_VERTICAL_DATA_H_ |