| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef MINIKIN_LAYOUT_CORE_H |
| #define MINIKIN_LAYOUT_CORE_H |
| |
| #include <vector> |
| |
| #include <gtest/gtest_prod.h> |
| |
| #include "minikin/FontFamily.h" |
| #include "minikin/Hyphenator.h" |
| #include "minikin/MinikinExtent.h" |
| #include "minikin/MinikinFont.h" |
| #include "minikin/MinikinRect.h" |
| #include "minikin/Range.h" |
| #include "minikin/U16StringPiece.h" |
| |
| namespace minikin { |
| |
| struct MinikinPaint; |
| |
| struct Point { |
| Point() : x(0), y(0) {} |
| Point(float x, float y) : x(x), y(y) {} |
| bool operator==(const Point& o) const { return x == o.x && y == o.y; } |
| float x; |
| float y; |
| }; |
| |
| // Immutable, recycle-able layout result. |
| class LayoutPiece { |
| public: |
| LayoutPiece(const U16StringPiece& textBuf, const Range& range, bool isRtl, |
| const MinikinPaint& paint, StartHyphenEdit startHyphen, EndHyphenEdit endHyphen); |
| |
| // Low level accessors. |
| const std::vector<uint8_t>& fontIndices() const { return mFontIndices; } |
| const std::vector<uint32_t> glyphIds() const { return mGlyphIds; } |
| const std::vector<Point> points() const { return mPoints; } |
| const std::vector<float> advances() const { return mAdvances; } |
| float advance() const { return mAdvance; } |
| const MinikinRect& bounds() const { return mBounds; } |
| const MinikinExtent& extent() const { return mExtent; } |
| const std::vector<FakedFont>& fonts() const { return mFonts; } |
| |
| // Helper accessors |
| uint32_t glyphCount() const { return mGlyphIds.size(); } |
| const FakedFont& fontAt(int glyphPos) const { return mFonts[mFontIndices[glyphPos]]; } |
| uint32_t glyphIdAt(int glyphPos) const { return mGlyphIds[glyphPos]; } |
| const Point& pointAt(int glyphPos) const { return mPoints[glyphPos]; } |
| |
| uint32_t getMemoryUsage() const { |
| return sizeof(uint8_t) * mFontIndices.size() + sizeof(uint32_t) * mGlyphIds.size() + |
| sizeof(Point) * mPoints.size() + sizeof(float) * mAdvances.size() + sizeof(float) + |
| sizeof(MinikinRect) + sizeof(MinikinExtent); |
| } |
| |
| private: |
| FRIEND_TEST(LayoutTest, doLayoutWithPrecomputedPiecesTest); |
| |
| std::vector<uint8_t> mFontIndices; // per glyph |
| std::vector<uint32_t> mGlyphIds; // per glyph |
| std::vector<Point> mPoints; // per glyph |
| |
| std::vector<float> mAdvances; // per code units |
| |
| float mAdvance; |
| MinikinRect mBounds; |
| MinikinExtent mExtent; |
| |
| std::vector<FakedFont> mFonts; |
| }; |
| |
| // For gtest output |
| inline std::ostream& operator<<(std::ostream& os, const Point& p) { |
| return os << "(" << p.x << ", " << p.y << ")"; |
| } |
| } // namespace minikin |
| |
| #endif // MINIKIN_LAYOUT_CORE_H |