FontFamily.h revision b80c1f19c58b927820a8a24bf2218e5645724608
19cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien/* 29cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * Copyright (C) 2013 The Android Open Source Project 39cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * 49cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * Licensed under the Apache License, Version 2.0 (the "License"); 59cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * you may not use this file except in compliance with the License. 69cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * You may obtain a copy of the License at 79cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * 89cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * http://www.apache.org/licenses/LICENSE-2.0 99cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * 109cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * Unless required by applicable law or agreed to in writing, software 119cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * distributed under the License is distributed on an "AS IS" BASIS, 129cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * See the License for the specific language governing permissions and 149cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien * limitations under the License. 159cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien */ 169cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 179cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien#ifndef MINIKIN_FONT_FAMILY_H 189cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien#define MINIKIN_FONT_FAMILY_H 199cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 209cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien#include <vector> 219cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 22b80c1f19c58b927820a8a24bf2218e5645724608Raph Levien#include <minikin/MinikinRefCounted.h> 23b80c1f19c58b927820a8a24bf2218e5645724608Raph Levien 249cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Leviennamespace android { 259cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 269cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien// FontStyle represents all style information needed to select an actual font 279cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien// from a collection. The implementation is packed into a single 32-bit word 289cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien// so it can be efficiently copied, embedded in other objects, etc. 299cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienclass FontStyle { 309cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienpublic: 319cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien FontStyle(int weight = 4, bool italic = false) { 329cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien bits = (weight & kWeightMask) | (italic ? kItalicMask : 0); 339cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien } 349cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien int getWeight() { return bits & kWeightMask; } 359cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien bool getItalic() { return (bits & kItalicMask) != 0; } 369cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien bool operator==(const FontStyle other) { return bits == other.bits; } 379cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien // TODO: language, variant 389cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienprivate: 399cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien static const int kWeightMask = 0xf; 409cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien static const int kItalicMask = 16; 419cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien uint32_t bits; 429cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien}; 439cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 44b80c1f19c58b927820a8a24bf2218e5645724608Raph Levienclass FontFamily : public MinikinRefCounted { 459cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienpublic: 46b80c1f19c58b927820a8a24bf2218e5645724608Raph Levien ~FontFamily(); 47b80c1f19c58b927820a8a24bf2218e5645724608Raph Levien 489cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien // Add font to family, extracting style information from the font 49bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien bool addFont(MinikinFont* typeface); 509cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 51bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien void addFont(MinikinFont* typeface, FontStyle style); 52bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien MinikinFont* getClosestMatch(FontStyle style) const; 539cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 549cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien // API's for enumerating the fonts in a family. These don't guarantee any particular order 559cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien size_t getNumFonts() const; 56bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien MinikinFont* getFont(size_t index) const; 579cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien FontStyle getStyle(size_t index) const; 589cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levienprivate: 599cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien class Font { 609cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien public: 61bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien Font(MinikinFont* typeface, FontStyle style) : 629cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien typeface(typeface), style(style) { } 63bcc3dc5a2591a95a57e379e27cbad69c18e91e67Raph Levien MinikinFont* typeface; 649cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien FontStyle style; 659cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien }; 669cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien std::vector<Font> mFonts; 679cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien}; 689cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 699cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien} // namespace android 709cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien 719cc9bbe1461f359f0b27c5e7645c17dda001ab1dRaph Levien#endif // MINIKIN_FONT_FAMILY_H 72