1 /* 2 * Copyright (C) 2006 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 #ifndef SkViewInflate_DEFINED 18 #define SkViewInflate_DEFINED 19 20 #include "SkDOM.h" 21 #include "SkTDict.h" 22 #include "SkEvent.h" 23 24 class SkView; 25 26 class SkViewInflate { 27 public: 28 SkViewInflate(); 29 virtual ~SkViewInflate(); 30 31 /** Return the tree of inflated views. If root is null, create the root element 32 as a view, otherwise assume root is that view, and just "inflate" it. 33 34 Returns null if the tree cannot be built. 35 */ 36 SkView* inflate(const SkDOM& dom, const SkDOM::Node* node, SkView* root = NULL); 37 SkView* inflate(const char xml[], size_t len, SkView* root = NULL); 38 39 /** Given an id attribute value, return the corresponding view, or null 40 if no match is found. 41 */ 42 SkView* findViewByID(const char id[]) const; 43 44 SkDEBUGCODE(void dump() const;) 45 46 protected: 47 /* Override this in your subclass to handle instantiating views 48 Call the inherited version for nodes you don't recognize. 49 50 Do not call "inflate" on the view, just return it. This will 51 get called automatically after createView returns. 52 */ 53 virtual SkView* createView(const SkDOM& dom, const SkDOM::Node* node); 54 /** Base implementation calls view->inflate(dom, node). Subclasses may override this 55 to perform additional initializations to view, either before or after calling 56 the inherited version. 57 */ 58 virtual void inflateView(SkView* view, const SkDOM& dom, const SkDOM::Node* node); 59 60 private: 61 enum { 62 kMinIDStrAlloc = 64 63 }; 64 SkTDict<SkView*> fIDs; 65 66 struct IDStr { 67 SkView* fView; 68 char* fStr; 69 }; 70 SkTDArray<IDStr> fListenTo, fBroadcastTo; 71 SkChunkAlloc fStrings; 72 73 void addIDStr(SkTDArray<IDStr>* list, SkView*, const char* str); 74 75 void rInflate(const SkDOM& dom, const SkDOM::Node* node, SkView* parent); 76 }; 77 78 #endif 79 80