/* * Copyright 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. */ package android.graphics; import android.util.Pair; import java.util.ArrayList; import java.util.Collections; import java.util.HashMap; import java.util.List; import java.util.Map; /** * Provides a utility for testing fonts * * For the purpose of testing font selection of families or fallbacks, this class provies following * regular font files. * * - ascii_a3em_weight100_upright.ttf * 'a' has 3em width and others have 1em width. The metadata has weight=100, non-italic value. * - ascii_b3em_weight100_italic.ttf * 'b' has 3em width and others have 1em width. The metadata has weight=100, italic value. * - ascii_c3em_weight200_upright.ttf * 'c' has 3em width and others have 1em width. The metadata has weight=200, non-italic value. * - ascii_d3em_weight200_italic.ttf * 'd' has 3em width and others have 1em width. The metadata has weight=200, italic value. * - ascii_e3em_weight300_upright.ttf * 'e' has 3em width and others have 1em width. The metadata has weight=300, non-italic value. * - ascii_f3em_weight300_italic.ttf * 'f' has 3em width and others have 1em width. The metadata has weight=300, italic value. * - ascii_g3em_weight400_upright.ttf * 'g' has 3em width and others have 1em width. The metadata has weight=400, non-italic value. * - ascii_h3em_weight400_italic.ttf * 'h' has 3em width and others have 1em width. The metadata has weight=400, italic value. * - ascii_i3em_weight500_upright.ttf * 'i' has 3em width and others have 1em width. The metadata has weight=500, non-italic value. * - ascii_j3em_weight500_italic.ttf * 'j' has 3em width and others have 1em width. The metadata has weight=500, italic value. * - ascii_k3em_weight600_upright.ttf * 'k' has 3em width and others have 1em width. The metadata has weight=600, non-italic value. * - ascii_l3em_weight600_italic.ttf * 'l' has 3em width and others have 1em width. The metadata has weight=600, italic value. * - ascii_m3em_weight700_upright.ttf * 'm' has 3em width and others have 1em width. The metadata has weight=700, non-italic value. * - ascii_n3em_weight700_italic.ttf * 'n' has 3em width and others have 1em width. The metadata has weight=700, italic value. * - ascii_o3em_weight800_upright.ttf * 'o' has 3em width and others have 1em width. The metadata has weight=800, non-italic value. * - ascii_p3em_weight800_italic.ttf * 'p' has 3em width and others have 1em width. The metadata has weight=800, italic value. * - ascii_q3em_weight900_upright.ttf * 'q' has 3em width and others have 1em width. The metadata has weight=900, non-italic value. * - ascii_r3em_weight900_italic.ttf * 'r' has 3em width and others have 1em width. The metadata has weight=900, italic value. * * In addition to above font files, this class provides a font collection file and a variable font * file. * - ascii.ttc * The collection of above 18 fonts with above order. * - ascii_vf.ttf * This font supports a-z characters and all characters has 1em width. This font supports 'wght', * 'ital' axes but no effect for the glyph width. This font also supports 'Asc[a-z]' 26 axes which * makes glyph width 3em. For example, 'Asca 1.0' makes a glyph width of 'a' 3em, 'Ascb 1.0' makes * a glyph width of 'b' 3em. With these axes, above font can be replicated like * - 'Asca' 1.0, 'wght' 100.0' is equivalent with ascii_a3em_width100_upright.ttf * - 'Ascb' 1.0, 'wght' 100.0, 'ital' 1.0' is equivalent with ascii_b3em_width100_italic.ttf */ public class FontTestUtil { private static final String FAMILY_SELECTION_FONT_PATH_IN_ASSET = "fonts_for_family_selection"; private static final List> sStyleList; private static final Map, String> sFontMap; private static final Map, Integer> sTtcMap; private static final Map, String> sVariationSettingsMap; private static final String[] sFontList = { // Same order of ascii.ttc FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/fonts/ascii_a3em_weight100_upright.ttf", FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/fonts/ascii_b3em_weight100_italic.ttf", FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/fonts/ascii_c3em_weight200_upright.ttf", FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/fonts/ascii_d3em_weight200_italic.ttf", FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/fonts/ascii_e3em_weight300_upright.ttf", FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/fonts/ascii_f3em_weight300_italic.ttf", FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/fonts/ascii_g3em_weight400_upright.ttf", FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/fonts/ascii_h3em_weight400_italic.ttf", FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/fonts/ascii_i3em_weight500_upright.ttf", FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/fonts/ascii_j3em_weight500_italic.ttf", FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/fonts/ascii_k3em_weight600_upright.ttf", FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/fonts/ascii_l3em_weight600_italic.ttf", FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/fonts/ascii_m3em_weight700_upright.ttf", FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/fonts/ascii_n3em_weight700_italic.ttf", FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/fonts/ascii_o3em_weight800_upright.ttf", FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/fonts/ascii_p3em_weight800_italic.ttf", FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/fonts/ascii_q3em_weight900_upright.ttf", FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/fonts/ascii_r3em_weight900_italic.ttf", }; private static final String[] FONT_VARIATION_SETTING_LIST = { "'Asca' 1.0, 'wght' 100.0", "'Ascb' 1.0, 'wght' 100.0, 'ital' 1.0", "'Ascc' 1.0, 'wght' 200.0", "'Ascd' 1.0, 'wght' 200.0, 'ital' 1.0", "'Asce' 1.0, 'wght' 300.0", "'Ascf' 1.0, 'wght' 300.0, 'ital' 1.0", "'Ascg' 1.0, 'wght' 400.0", "'Asch' 1.0, 'wght' 400.0, 'ital' 1.0", "'Asci' 1.0, 'wght' 500.0", "'Ascj' 1.0, 'wght' 500.0, 'ital' 1.0", "'Asck' 1.0, 'wght' 600.0", "'Ascl' 1.0, 'wght' 600.0, 'ital' 1.0", "'Ascm' 1.0, 'wght' 700.0", "'Ascn' 1.0, 'wght' 700.0, 'ital' 1.0", "'Asco' 1.0, 'wght' 800.0", "'Ascp' 1.0, 'wght' 800.0, 'ital' 1.0", "'Ascq' 1.0, 'wght' 900.0", "'Ascr' 1.0, 'wght' 900.0, 'ital' 1.0", }; static { // Style list with the same order of sFontList. ArrayList> styles = new ArrayList<>(); styles.add(new Pair<>(100, false)); styles.add(new Pair<>(100, true)); styles.add(new Pair<>(200, false)); styles.add(new Pair<>(200, true)); styles.add(new Pair<>(300, false)); styles.add(new Pair<>(300, true)); styles.add(new Pair<>(400, false)); styles.add(new Pair<>(400, true)); styles.add(new Pair<>(500, false)); styles.add(new Pair<>(500, true)); styles.add(new Pair<>(600, false)); styles.add(new Pair<>(600, true)); styles.add(new Pair<>(700, false)); styles.add(new Pair<>(700, true)); styles.add(new Pair<>(800, false)); styles.add(new Pair<>(800, true)); styles.add(new Pair<>(900, false)); styles.add(new Pair<>(900, true)); sStyleList = Collections.unmodifiableList(styles); HashMap, String> map = new HashMap<>(); HashMap, Integer> ttcMap = new HashMap<>(); HashMap, String> variationMap = new HashMap<>(); HashMap> reverseMap = new HashMap<>(); for (int i = 0; i < sFontList.length; ++i) { map.put(sStyleList.get(i), sFontList[i]); ttcMap.put(sStyleList.get(i), i); variationMap.put(sStyleList.get(i), FONT_VARIATION_SETTING_LIST[i]); } sFontMap = Collections.unmodifiableMap(map); sTtcMap = Collections.unmodifiableMap(ttcMap); sVariationSettingsMap = Collections.unmodifiableMap(variationMap); } /** * Returns a path to the font collection file in asset directory. */ public static String getTtcFontFileInAsset() { return FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/ascii.ttc"; } /** * Returns a path to the variable font file in asset directory. */ public static String getVFFontInAsset() { return FAMILY_SELECTION_FONT_PATH_IN_ASSET + "/ascii_vf.ttf"; } /** * Returns a ttc index of the specified style. */ public static int getTtcIndexFromStyle(int weight, boolean italic) { return sTtcMap.get(new Pair<>(weight, italic)).intValue(); } /** * Returns a variation settings string of the specified style. */ public static String getVarSettingsFromStyle(int weight, boolean italic) { return sVariationSettingsMap.get(new Pair<>(weight, italic)); } /** * Returns a font path from the specified style. */ public static String getFontPathFromStyle(int weight, boolean italic) { return sFontMap.get(new Pair<>(weight, italic)); } /** * Returns all supported styles. */ public static List> getAllStyles() { return sStyleList; } }