1 /* 2 * Copyright 2006, The Android Open Source Project 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef RenderSkinAndroid_h 27 #define RenderSkinAndroid_h 28 29 #include "PlatformString.h" 30 31 namespace android { 32 class AssetManager; 33 } 34 35 class SkBitmap; 36 37 namespace WebCore { 38 class Node; 39 class PlatformGraphicsContext; 40 41 /* RenderSkinAndroid is the base class for all RenderSkins. Form elements each have a 42 * subclass for drawing themselves. 43 */ 44 class RenderSkinAndroid 45 { 46 public: 47 RenderSkinAndroid(); ~RenderSkinAndroid()48 virtual ~RenderSkinAndroid() {} 49 50 enum State { 51 kDisabled, 52 kNormal, 53 kFocused, 54 kPressed, 55 56 kNumStates 57 }; 58 59 /** 60 * Initialize the Android skinning system. The AssetManager may be used to find resources used 61 * in rendering. 62 */ 63 static void Init(android::AssetManager*, String drawableDirectory); 64 65 /* DecodeBitmap determines which file to use, with the given fileName of the form 66 * "images/bitmap.png", and uses the asset manager to select the exact one. It 67 * returns true if it successfully decoded the bitmap, false otherwise. 68 */ 69 static bool DecodeBitmap(android::AssetManager* am, const char* fileName, SkBitmap* bitmap); 70 71 /* draw() tells the skin to draw itself, and returns true if the skin needs 72 * a redraw to animations, false otherwise 73 */ draw(PlatformGraphicsContext *)74 virtual bool draw(PlatformGraphicsContext*) { return false; } 75 76 /* notifyState() checks to see if the element is checked, focused, and enabled 77 * it must be implemented in the subclass 78 */ notifyState(Node * element)79 virtual void notifyState(Node* element) { } 80 81 /* setDim() tells the skin its width and height 82 */ setDim(int width,int height)83 virtual void setDim(int width, int height) { m_width = width; m_height = height; } 84 85 protected: 86 int m_height; 87 int m_width; 88 89 }; 90 91 } // WebCore 92 93 #endif 94
