00001 /* 00002 * Copyright (C) 2006 The Android Open Source Project 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 00017 #ifndef SkScrollBarView_DEFINED 00018 #define SkScrollBarView_DEFINED 00019 00020 #include "SkView.h" 00021 #include "SkWidgetViews.h" 00022 #include "SkAnimator.h" 00023 00024 class SkScrollBarView : public SkWidgetView { 00025 public: 00026 SkScrollBarView(); 00027 00028 unsigned getStart() const { return fStartPoint; } 00029 unsigned getShown() const { return fShownLength; } 00030 unsigned getTotal() const { return fTotalLength; } 00031 00032 void setStart(unsigned start); 00033 void setShown(unsigned shown); 00034 void setTotal(unsigned total); 00035 00036 protected: 00037 //overrides 00038 virtual void onInflate(const SkDOM& dom, const SkDOM::Node* node); 00039 virtual void onSizeChange(); 00040 virtual void onDraw(SkCanvas* canvas); 00041 virtual bool onEvent(const SkEvent& evt); 00042 00043 private: 00044 SkAnimator fAnim; 00045 unsigned fTotalLength, fStartPoint, fShownLength; 00046 00047 void adjust(); 00048 00049 typedef SkWidgetView INHERITED; 00050 }; 00051 #endif 00052