1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.inputmethod.keyboard.internal; 18 19 import android.content.res.Resources; 20 import android.content.res.TypedArray; 21 import android.graphics.drawable.Drawable; 22 import android.util.Log; 23 import android.util.SparseIntArray; 24 25 import com.android.inputmethod.latin.R; 26 import com.android.inputmethod.latin.utils.CollectionUtils; 27 28 import java.util.HashMap; 29 30 public final class KeyboardIconsSet { 31 private static final String TAG = KeyboardIconsSet.class.getSimpleName(); 32 33 public static final int ICON_UNDEFINED = 0; 34 private static final int ATTR_UNDEFINED = 0; 35 36 private static final SparseIntArray ATTR_ID_TO_ICON_ID = new SparseIntArray(); 37 38 // Icon name to icon id map. 39 private static final HashMap<String, Integer> sNameToIdsMap = CollectionUtils.newHashMap(); 40 41 private static final Object[] NAMES_AND_ATTR_IDS = { 42 "undefined", ATTR_UNDEFINED, 43 "shift_key", R.styleable.Keyboard_iconShiftKey, 44 "delete_key", R.styleable.Keyboard_iconDeleteKey, 45 "settings_key", R.styleable.Keyboard_iconSettingsKey, 46 "space_key", R.styleable.Keyboard_iconSpaceKey, 47 "enter_key", R.styleable.Keyboard_iconEnterKey, 48 "search_key", R.styleable.Keyboard_iconSearchKey, 49 "tab_key", R.styleable.Keyboard_iconTabKey, 50 "shortcut_key", R.styleable.Keyboard_iconShortcutKey, 51 "shortcut_for_label", R.styleable.Keyboard_iconShortcutForLabel, 52 "space_key_for_number_layout", R.styleable.Keyboard_iconSpaceKeyForNumberLayout, 53 "shift_key_shifted", R.styleable.Keyboard_iconShiftKeyShifted, 54 "shortcut_key_disabled", R.styleable.Keyboard_iconShortcutKeyDisabled, 55 "tab_key_preview", R.styleable.Keyboard_iconTabKeyPreview, 56 "language_switch_key", R.styleable.Keyboard_iconLanguageSwitchKey, 57 "zwnj_key", R.styleable.Keyboard_iconZwnjKey, 58 "zwj_key", R.styleable.Keyboard_iconZwjKey, 59 "emoji_key", R.styleable.Keyboard_iconEmojiKey, 60 }; 61 62 private static int NUM_ICONS = NAMES_AND_ATTR_IDS.length / 2; 63 private static final String[] ICON_NAMES = new String[NUM_ICONS]; 64 private final Drawable[] mIcons = new Drawable[NUM_ICONS]; 65 66 static { 67 int iconId = ICON_UNDEFINED; 68 for (int i = 0; i < NAMES_AND_ATTR_IDS.length; i += 2) { 69 final String name = (String)NAMES_AND_ATTR_IDS[i]; 70 final Integer attrId = (Integer)NAMES_AND_ATTR_IDS[i + 1]; 71 if (attrId != ATTR_UNDEFINED) { ATTR_ID_TO_ICON_ID.put(attrId, iconId)72 ATTR_ID_TO_ICON_ID.put(attrId, iconId); 73 } sNameToIdsMap.put(name, iconId)74 sNameToIdsMap.put(name, iconId); 75 ICON_NAMES[iconId] = name; 76 iconId++; 77 } 78 } 79 loadIcons(final TypedArray keyboardAttrs)80 public void loadIcons(final TypedArray keyboardAttrs) { 81 final int size = ATTR_ID_TO_ICON_ID.size(); 82 for (int index = 0; index < size; index++) { 83 final int attrId = ATTR_ID_TO_ICON_ID.keyAt(index); 84 try { 85 final Drawable icon = keyboardAttrs.getDrawable(attrId); 86 setDefaultBounds(icon); 87 final Integer iconId = ATTR_ID_TO_ICON_ID.get(attrId); 88 mIcons[iconId] = icon; 89 } catch (Resources.NotFoundException e) { 90 Log.w(TAG, "Drawable resource for icon #" 91 + keyboardAttrs.getResources().getResourceEntryName(attrId) 92 + " not found"); 93 } 94 } 95 } 96 isValidIconId(final int iconId)97 private static boolean isValidIconId(final int iconId) { 98 return iconId >= 0 && iconId < ICON_NAMES.length; 99 } 100 getIconName(final int iconId)101 public static String getIconName(final int iconId) { 102 return isValidIconId(iconId) ? ICON_NAMES[iconId] : "unknown<" + iconId + ">"; 103 } 104 getIconId(final String name)105 static int getIconId(final String name) { 106 Integer iconId = sNameToIdsMap.get(name); 107 if (iconId != null) { 108 return iconId; 109 } 110 throw new RuntimeException("unknown icon name: " + name); 111 } 112 getIconDrawable(final int iconId)113 public Drawable getIconDrawable(final int iconId) { 114 if (isValidIconId(iconId)) { 115 return mIcons[iconId]; 116 } 117 throw new RuntimeException("unknown icon id: " + getIconName(iconId)); 118 } 119 setDefaultBounds(final Drawable icon)120 private static void setDefaultBounds(final Drawable icon) { 121 if (icon != null) { 122 icon.setBounds(0, 0, icon.getIntrinsicWidth(), icon.getIntrinsicHeight()); 123 } 124 } 125 } 126