168fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet/* 268fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * Copyright (C) 2010 The Android Open Source Project 368fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * 468fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * Licensed under the Apache License, Version 2.0 (the "License"); 568fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * you may not use this file except in compliance with the License. 668fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * You may obtain a copy of the License at 768fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * 868fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * http://www.apache.org/licenses/LICENSE-2.0 968fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * 1068fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * Unless required by applicable law or agreed to in writing, software 1168fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * distributed under the License is distributed on an "AS IS" BASIS, 1268fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1368fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * See the License for the specific language governing permissions and 1468fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * limitations under the License. 1568fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet */ 1668fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet 1795b17a5e62eeeb7b38ef668508df43a1ee9e0880Xavier Ducrohetpackage com.android.ide.common.rendering.api; 1868fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet 1995b17a5e62eeeb7b38ef668508df43a1ee9e0880Xavier Ducrohet 2079c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohetimport static com.android.ide.common.rendering.api.Result.Status.NOT_IMPLEMENTED; 2179c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet 22e25af9f721bcc89d73c8e56adc9d02a6bcfac1c6Xavier Ducrohetimport com.android.ide.common.rendering.api.Result.Status; 23e25af9f721bcc89d73c8e56adc9d02a6bcfac1c6Xavier Ducrohet 24e25af9f721bcc89d73c8e56adc9d02a6bcfac1c6Xavier Ducrohetimport java.awt.image.BufferedImage; 2595b17a5e62eeeb7b38ef668508df43a1ee9e0880Xavier Ducrohetimport java.io.File; 267c3914ca52567a04de780cd490591646d3ff7fffXavier Ducrohetimport java.util.EnumSet; 2768fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohetimport java.util.Map; 2868fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet 2968fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet/** 3095b17a5e62eeeb7b38ef668508df43a1ee9e0880Xavier Ducrohet * Entry point of the Layout Library. Extensions of this class provide a method to compute 3168fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * and render a layout. 3268fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet */ 3395b17a5e62eeeb7b38ef668508df43a1ee9e0880Xavier Ducrohetpublic abstract class Bridge { 3468fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet 358818ca4db2f1ae396964912bf8035ee88988f4ddXavier Ducrohet public final static int API_CURRENT = 8; 3668fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet 3768fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet /** 3868fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * Returns the API level of the layout library. 3968fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * <p/> 4068fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * While no methods will ever be removed, some may become deprecated, and some new ones 4168fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * will appear. 4295b17a5e62eeeb7b38ef668508df43a1ee9e0880Xavier Ducrohet * <p/>All Layout libraries based on {@link Bridge} return at minimum an API level of 5. 4368fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet */ 4468fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet public abstract int getApiLevel(); 4568fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet 4668fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet /** 47677a248915d2bb6609e7b7ae6976341b86e92ac0Xavier Ducrohet * Returns the revision of the library inside a given (layoutlib) API level. 48677a248915d2bb6609e7b7ae6976341b86e92ac0Xavier Ducrohet * The true revision number of the library is {@link #getApiLevel()}.{@link #getRevision()} 49677a248915d2bb6609e7b7ae6976341b86e92ac0Xavier Ducrohet */ 50677a248915d2bb6609e7b7ae6976341b86e92ac0Xavier Ducrohet public int getRevision() { 51677a248915d2bb6609e7b7ae6976341b86e92ac0Xavier Ducrohet return 0; 52677a248915d2bb6609e7b7ae6976341b86e92ac0Xavier Ducrohet } 53677a248915d2bb6609e7b7ae6976341b86e92ac0Xavier Ducrohet 54677a248915d2bb6609e7b7ae6976341b86e92ac0Xavier Ducrohet /** 5579ebb8f4ec3236d361c4b6a6d97440a29c50aa4aXavier Ducrohet * Returns an {@link EnumSet} of the supported {@link Capability}. 567c3914ca52567a04de780cd490591646d3ff7fffXavier Ducrohet * @return an {@link EnumSet} with the supported capabilities. 577c3914ca52567a04de780cd490591646d3ff7fffXavier Ducrohet * 587c3914ca52567a04de780cd490591646d3ff7fffXavier Ducrohet */ 5979ebb8f4ec3236d361c4b6a6d97440a29c50aa4aXavier Ducrohet public EnumSet<Capability> getCapabilities() { 6079ebb8f4ec3236d361c4b6a6d97440a29c50aa4aXavier Ducrohet return EnumSet.noneOf(Capability.class); 617c3914ca52567a04de780cd490591646d3ff7fffXavier Ducrohet } 627c3914ca52567a04de780cd490591646d3ff7fffXavier Ducrohet 637c3914ca52567a04de780cd490591646d3ff7fffXavier Ducrohet /** 6468fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * Initializes the Bridge object. 6568fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * 66d7b0f0de4f0b55c137443aab782a8051a34fe70fXavier Ducrohet * @param platformProperties The build properties for the platform. 6795b17a5e62eeeb7b38ef668508df43a1ee9e0880Xavier Ducrohet * @param fontLocation the location of the fonts. 686d93979134c2e89bae1596141a270ea56c8dde91Xavier Ducrohet * @param enumValueMap map attrName => { map enumFlagName => Integer value }. This is typically 696d93979134c2e89bae1596141a270ea56c8dde91Xavier Ducrohet * read from attrs.xml in the SDK target. 706d93979134c2e89bae1596141a270ea56c8dde91Xavier Ducrohet * @param log a {@link LayoutLog} object. Can be null. 7168fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * @return true if success. 7268fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet */ 73d7b0f0de4f0b55c137443aab782a8051a34fe70fXavier Ducrohet public boolean init(Map<String, String> platformProperties, 74d7b0f0de4f0b55c137443aab782a8051a34fe70fXavier Ducrohet File fontLocation, 75d7b0f0de4f0b55c137443aab782a8051a34fe70fXavier Ducrohet Map<String, Map<String, Integer>> enumValueMap, 766d93979134c2e89bae1596141a270ea56c8dde91Xavier Ducrohet LayoutLog log) { 7768fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet return false; 7868fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet } 7968fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet 8068fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet /** 8168fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * Prepares the layoutlib to unloaded. 8268fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet */ 8368fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet public boolean dispose() { 8468fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet return false; 8568fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet } 8668fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet 8768fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet /** 8868fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * Starts a layout session by inflating and rendering it. The method returns a 8995b17a5e62eeeb7b38ef668508df43a1ee9e0880Xavier Ducrohet * {@link RenderSession} on which further actions can be taken. 9068fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * 9195b17a5e62eeeb7b38ef668508df43a1ee9e0880Xavier Ducrohet * @return a new {@link RenderSession} object that contains the result of the scene creation and 9268fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * first rendering. 9368fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet */ 94e25af9f721bcc89d73c8e56adc9d02a6bcfac1c6Xavier Ducrohet public RenderSession createSession(SessionParams params) { 9568fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet return null; 9668fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet } 9768fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet 9868fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet /** 99e25af9f721bcc89d73c8e56adc9d02a6bcfac1c6Xavier Ducrohet * Renders a Drawable. If the rendering is successful, the result image is accessible through 100e25af9f721bcc89d73c8e56adc9d02a6bcfac1c6Xavier Ducrohet * {@link Result#getData()}. It is of type {@link BufferedImage} 101e25af9f721bcc89d73c8e56adc9d02a6bcfac1c6Xavier Ducrohet * @param params the rendering parameters. 102e25af9f721bcc89d73c8e56adc9d02a6bcfac1c6Xavier Ducrohet * @return the result of the action. 103e25af9f721bcc89d73c8e56adc9d02a6bcfac1c6Xavier Ducrohet */ 104e25af9f721bcc89d73c8e56adc9d02a6bcfac1c6Xavier Ducrohet public Result renderDrawable(DrawableParams params) { 105e25af9f721bcc89d73c8e56adc9d02a6bcfac1c6Xavier Ducrohet return Status.NOT_IMPLEMENTED.createResult(); 106e25af9f721bcc89d73c8e56adc9d02a6bcfac1c6Xavier Ducrohet } 107e25af9f721bcc89d73c8e56adc9d02a6bcfac1c6Xavier Ducrohet 108e25af9f721bcc89d73c8e56adc9d02a6bcfac1c6Xavier Ducrohet /** 10968fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * Clears the resource cache for a specific project. 11068fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * <p/>This cache contains bitmaps and nine patches that are loaded from the disk and reused 11168fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * until this method is called. 11268fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * <p/>The cache is not configuration dependent and should only be cleared when a 11368fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * resource changes (at this time only bitmaps and 9 patches go into the cache). 11495b17a5e62eeeb7b38ef668508df43a1ee9e0880Xavier Ducrohet * <p/> 115f538a020eec631ca19ce493877de2ebca3b8d6f3Xavier Ducrohet * The project key provided must be similar to the one passed in {@link RenderParams}. 11668fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * 11768fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet * @param projectKey the key for the project. 11868fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet */ 11968fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet public void clearCaches(Object projectKey) { 12068fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet 12168fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet } 12279c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet 12379c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet /** 12479c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet * Utility method returning the parent of a given view object. 12579c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet * 12679c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet * @param viewObject the object for which to return the parent. 12779c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet * 12879c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet * @return a {@link Result} indicating the status of the action, and if success, the parent 12979c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet * object in {@link Result#getData()} 13079c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet */ 13179c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet public Result getViewParent(Object viewObject) { 13279c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet return NOT_IMPLEMENTED.createResult(); 13379c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet } 13479c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet 13579c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet /** 13679c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet * Utility method returning the index of a given view in its parent. 13779c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet * @param viewObject the object for which to return the index. 13879c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet * 13979c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet * @return a {@link Result} indicating the status of the action, and if success, the index in 14079c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet * the parent in {@link Result#getData()} 14179c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet */ 14279c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet public Result getViewIndex(Object viewObject) { 14379c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet return NOT_IMPLEMENTED.createResult(); 14479c8c93587295a899fa89da8b31fbfb008b59ee6Xavier Ducrohet } 145135b9596ecda041e9f74ebede8db612d28d82e0cXavier Ducrohet 146135b9596ecda041e9f74ebede8db612d28d82e0cXavier Ducrohet /** 147135b9596ecda041e9f74ebede8db612d28d82e0cXavier Ducrohet * Utility method returning the baseline value for a given view object. This basically returns 148135b9596ecda041e9f74ebede8db612d28d82e0cXavier Ducrohet * View.getBaseline(). 149135b9596ecda041e9f74ebede8db612d28d82e0cXavier Ducrohet * 150135b9596ecda041e9f74ebede8db612d28d82e0cXavier Ducrohet * @param viewObject the object for which to return the index. 151135b9596ecda041e9f74ebede8db612d28d82e0cXavier Ducrohet * 152135b9596ecda041e9f74ebede8db612d28d82e0cXavier Ducrohet * @return the baseline value or -1 if not applicable to the view object or if this layout 153135b9596ecda041e9f74ebede8db612d28d82e0cXavier Ducrohet * library does not implement this method. 154580ecb7a5212f5e14862aa91b8bc5a0964ca56d9Xavier Ducrohet * 155580ecb7a5212f5e14862aa91b8bc5a0964ca56d9Xavier Ducrohet * @deprecated use the extended ViewInfo. 156135b9596ecda041e9f74ebede8db612d28d82e0cXavier Ducrohet */ 157580ecb7a5212f5e14862aa91b8bc5a0964ca56d9Xavier Ducrohet @Deprecated 158580ecb7a5212f5e14862aa91b8bc5a0964ca56d9Xavier Ducrohet public Result getViewBaseline(Object viewObject) { 159580ecb7a5212f5e14862aa91b8bc5a0964ca56d9Xavier Ducrohet return NOT_IMPLEMENTED.createResult(); 160135b9596ecda041e9f74ebede8db612d28d82e0cXavier Ducrohet } 16168fa17272bfbb398af684387fdaba93e62d1b283Xavier Ducrohet} 162