[
{
"path": ".idea/.name",
"content": "bezierCurve"
},
{
"path": ".idea/compiler.xml",
"content": "\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n"
},
{
"path": ".idea/copyright/profiles_settings.xml",
"content": "\n \n"
},
{
"path": ".idea/encodings.xml",
"content": "\n\n \n"
},
{
"path": ".idea/misc.xml",
"content": "\n\n \n \n \n \n \n \n \n"
},
{
"path": ".idea/modules.xml",
"content": "\n\n \n \n \n \n \n"
},
{
"path": ".idea/scopes/scope_settings.xml",
"content": "\n \n \n \n"
},
{
"path": ".idea/vcs.xml",
"content": "\n\n \n \n \n"
},
{
"path": ".idea/workspace.xml",
"content": "\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n true\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \n \n \n \n \n \n \n 1439173802209\n \n 1439173802209\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n"
},
{
"path": "AndroidManifest.xml",
"content": "\n\n \n \n \n \n \n \n \n \n \n\n"
},
{
"path": "README.md",
"content": "### **成果物**\n\n\n"
},
{
"path": "ant.properties",
"content": "# This file is used to override default values used by the Ant build system.\n#\n# This file must be checked into Version Control Systems, as it is\n# integral to the build system of your project.\n\n# This file is only used by the Ant script.\n\n# You can use this to override default values such as\n# 'source.dir' for the location of your java source folder and\n# 'out.dir' for the location of your output folder.\n\n# You can also use it define how the release builds are signed by declaring\n# the following properties:\n# 'key.store' for the location of your keystore and\n# 'key.alias' for the name of the key to use.\n# The password will be asked during the build when you use the 'release' target.\n\n"
},
{
"path": "bezierCurve.iml",
"content": "\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n"
},
{
"path": "build.xml",
"content": "\n\n\n \n \n\n \n \n\n \n \n \n \n \n\n \n \n\n \n \n\n \n \n\n \n \n \n\n\n"
},
{
"path": "local.properties",
"content": "# This file is automatically generated by Android Tools.\n# Do not modify this file -- YOUR CHANGES WILL BE ERASED!\n#\n# This file must *NOT* be checked into Version Control Systems,\n# as it contains information specific to your local configuration.\n\n# location of the SDK. This is only used by Ant\n# For customization when using a Version Control System, please read the\n# header note.\nsdk.dir=F:\\\\android_eclipse_sdk\\\\adt-bundle-windows-x86_64-20140702\\\\sdk\n"
},
{
"path": "proguard-project.txt",
"content": "# To enable ProGuard in your project, edit project.properties\n# to define the proguard.config property as described in that file.\n#\n# Add project specific ProGuard rules here.\n# By default, the flags in this file are appended to flags specified\n# in ${sdk.dir}/tools/proguard/proguard-android.txt\n# You can edit the include path and order by changing the ProGuard\n# include property in project.properties.\n#\n# For more details, see\n# http://developer.android.com/guide/developing/tools/proguard.html\n\n# Add any project specific keep options here:\n\n# If your project uses WebView with JS, uncomment the following\n# and specify the fully qualified class name to the JavaScript interface\n# class:\n#-keepclassmembers class fqcn.of.javascript.interface.for.webview {\n# public *;\n#}\n"
},
{
"path": "project.properties",
"content": "# This file is automatically generated by Android Tools.\n# Do not modify this file -- YOUR CHANGES WILL BE ERASED!\n#\n# This file must be checked in Version Control Systems.\n#\n# To customize properties used by the Ant build system edit\n# \"ant.properties\", and override values to adapt the script to your\n# project structure.\n#\n# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):\n#proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt\n\n# Project target.\ntarget=android-20\n"
},
{
"path": "res/layout/main.xml",
"content": "\n\n\n"
},
{
"path": "res/values/strings.xml",
"content": "\n\n bezierCurve\n\n"
},
{
"path": "src/com/example/bezierCurve/MyActivity.java",
"content": "package com.example.bezierCurve;\n\nimport android.annotation.TargetApi;\nimport android.app.Activity;\nimport android.content.pm.ApplicationInfo;\nimport android.graphics.Bitmap;\nimport android.graphics.BitmapFactory;\nimport android.graphics.Canvas;\nimport android.graphics.Matrix;\nimport android.os.Build;\nimport android.os.Bundle;\nimport android.util.DisplayMetrics;\nimport android.util.Log;\nimport android.view.MotionEvent;\nimport android.view.View;\nimport android.view.ViewGroup;\nimport android.widget.FrameLayout;\n\nimport java.io.InputStream;\n\npublic class MyActivity extends Activity {\n private Pager pager;\n private PagerFactory pagerFactory;\n private Bitmap currentBitmap, mCurPageBitmap, mNextPageBitmap;\n private Canvas mCurPageCanvas, mNextPageCanvas;\n private static final String[] pages = {\"one\", \"two\", \"three\"};\n private int screenWidth;\n private int screenHeight;\n\n /**\n * Called when the activity is first created.\n */\n @Override\n public void onCreate(Bundle savedInstanceState) {\n super.onCreate(savedInstanceState);\n setContentView(R.layout.main);\n\n initView();\n }\n\n private void initView() {\n\n DisplayMetrics displayMetrics = getResources().getDisplayMetrics();\n screenWidth = displayMetrics.widthPixels;\n screenHeight = displayMetrics.heightPixels;\n pager = new Pager(this, screenWidth, screenHeight);\n\n FrameLayout.LayoutParams layoutParams = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);\n addContentView(pager, layoutParams);\n\n mCurPageBitmap = Bitmap.createBitmap(screenWidth, screenHeight, Bitmap.Config.ARGB_8888);\n mNextPageBitmap = Bitmap.createBitmap(screenWidth, screenHeight, Bitmap.Config.ARGB_8888);\n\n mCurPageCanvas = new Canvas(mCurPageBitmap);\n mNextPageCanvas = new Canvas(mNextPageBitmap);\n pagerFactory = new PagerFactory(getApplicationContext());\n\n pager.setBitmaps(mCurPageBitmap, mCurPageBitmap);\n loadImage(mCurPageCanvas, 0);\n\n pager.setOnTouchListener(new View.OnTouchListener() {\n\n private int count = pages.length;\n private int currentIndex = 0;\n private int lastIndex = 0;\n private Bitmap lastBitmap = null;\n\n @Override\n public boolean onTouch(View v, MotionEvent e) {\n boolean ret = false;\n if (v == pager) {\n if (e.getAction() == MotionEvent.ACTION_DOWN) {\n pager.calcCornerXY(e.getX(), e.getY());\n\n lastBitmap = currentBitmap;\n lastIndex = currentIndex;\n\n pagerFactory.onDraw(mCurPageCanvas, currentBitmap);\n if (pager.DragToRight()) { // 向右滑动，显示前一页\n if (currentIndex == 0) return false;\n pager.abortAnimation();\n currentIndex--;\n loadImage(mNextPageCanvas, currentIndex);\n } else { // 向左滑动，显示后一页\n if (currentIndex + 1 == count) return false;\n pager.abortAnimation();\n currentIndex++;\n loadImage(mNextPageCanvas, currentIndex);\n }\n } else if (e.getAction() == MotionEvent.ACTION_MOVE) {\n\n } else if (e.getAction() == MotionEvent.ACTION_UP) {\n if (!pager.canDragOver()) {\n currentIndex = lastIndex;\n currentBitmap = lastBitmap;\n }\n }\n\n ret = pager.doTouchEvent(e);\n return ret;\n }\n return false;\n }\n });\n }\n\n private void loadImage(final Canvas canvas, int index) {\n Bitmap bitmap = getBitmap(pages[index]);\n currentBitmap = bitmap;\n pagerFactory.onDraw(canvas, bitmap);\n pager.setBitmaps(mCurPageBitmap, mNextPageBitmap);\n pager.postInvalidate();\n }\n\n private Bitmap getBitmap(String name) {\n BitmapFactory.Options opt = new BitmapFactory.Options();\n opt.inPreferredConfig = Bitmap.Config.RGB_565;\n opt.inPurgeable = true;\n opt.inInputShareable = true;\n ApplicationInfo appInfo = getApplicationInfo();\n int resID = getResources().getIdentifier(name, \"drawable\", appInfo.packageName);\n InputStream is = getResources().openRawResource(resID);\n Bitmap tempBitmap = BitmapFactory.decodeStream(is, null, opt);\n int width = tempBitmap.getWidth();\n int height = tempBitmap.getHeight();\n Matrix matrix = new Matrix();\n matrix.postScale(((float)screenWidth)/width, ((float)screenHeight)/height);\n Bitmap bitmap = Bitmap.createBitmap(tempBitmap, 0, 0, width, height, matrix, true);\n return bitmap;\n }\n}\n"
},
{
"path": "src/com/example/bezierCurve/Pager.java",
"content": "package com.example.bezierCurve;\n\nimport android.content.Context;\nimport android.graphics.*;\nimport android.graphics.drawable.GradientDrawable;\nimport android.util.Log;\nimport android.view.MotionEvent;\nimport android.view.View;\nimport android.widget.Scroller;\n\npublic class Pager extends View {\n\n\tprivate int mWidth = 1280;\n\tprivate int mHeight = 768;\n\tprivate int mCornerX = 0; // 拖拽点对应的页脚\n\tprivate int mCornerY = 0;\n\tprivate Path mPath0;\n\tprivate Path mPath1;\n\tBitmap mCurPageBitmap = null; // 当前页\n\tBitmap mNextPageBitmap = null;\n\n\tPointF mTouch = new PointF(); \t\t// 拖拽点\n\tPointF mBezierStart1 = new PointF(); \t\t// 贝塞尔曲线起始点\n\tPointF mBezierControl1 = new PointF(); \t\t// 贝塞尔曲线控制点\n\tPointF mBeziervertex1 = new PointF(); \t\t// 贝塞尔曲线顶点\n\tPointF mBezierEnd1 = new PointF(); \t\t\t// 贝塞尔曲线结束点\n\n\tPointF mBezierStart2 = new PointF(); \t\t// 另一条贝塞尔曲线\n\tPointF mBezierControl2 = new PointF();\n\tPointF mBeziervertex2 = new PointF();\n\tPointF mBezierEnd2 = new PointF();\n\n\tfloat mMiddleX;\n\tfloat mMiddleY;\n\tfloat mDegrees;\n\tfloat mTouchToCornerDis;\n\tColorMatrixColorFilter mColorMatrixFilter;\n\tMatrix mMatrix;\n\tfloat[] mMatrixArray = { 0, 0, 0, 0, 0, 0, 0, 0, 1.0f };\n\n\tboolean mIsRTandLB; // 是否属于右、上、左、下\n\tfloat mMaxLength = (float) Math.hypot(mWidth, mHeight);\n\tint[] mBackShadowColors;\n\tint[] mFrontShadowColors;\n\tGradientDrawable mBackShadowDrawableLR;\n\tGradientDrawable mBackShadowDrawableRL;\n\tGradientDrawable mFolderShadowDrawableLR;\n\tGradientDrawable mFolderShadowDrawableRL;\n\n\tGradientDrawable mFrontShadowDrawableHBT;\n\tGradientDrawable mFrontShadowDrawableHTB;\n\tGradientDrawable mFrontShadowDrawableVLR;\n\tGradientDrawable mFrontShadowDrawableVRL;\n\n\tPaint mPaint;\n\tScroller mScroller;\n\n\tpublic Pager(Context context, int screenWidth, int screenHeight) {\n\t\tsuper(context);\n\t\t\n\t\tthis.mWidth = screenWidth;\t\t// Pager 宽和高\n\t\tthis.mHeight = screenHeight;\n\n\t\tmPath0 = new Path();\n\t\tmPath1 = new Path();\n\t\tcreateDrawable();\n\n\t\tmPaint = new Paint();\n\t\tmPaint.setStyle(Paint.Style.FILL);\n\n\t\tColorMatrix cm = new ColorMatrix();\n\t\tfloat array[] = { 0.55f, 0, 0, 0, 80.0f, 0, 0.55f, 0, 0, 80.0f, 0, 0,\n\t\t\t\t0.55f, 0, 80.0f, 0, 0, 0, 0.2f, 0 };\n\t\tcm.set(array);\n\t\tmColorMatrixFilter = new ColorMatrixColorFilter(cm);\n\t\tmMatrix = new Matrix();\n\t\tmScroller = new Scroller(getContext());\n\n\t\tmTouch.x = 0.01f; \t\t// 不让x,y为0,否则在点计算时会有问题\n\t\tmTouch.y = 0.01f;\n\t}\n\n\t/** 计算拖拽点对应的拖拽脚 */\n\tpublic void calcCornerXY(float x, float y) {\n\t\tif (x <= mWidth / 2)\n\t\t\tmCornerX = 0;\n\t\telse\n\t\t\tmCornerX = mWidth;\n\t\tif (y <= mHeight / 2)\n\t\t\tmCornerY = 0;\n\t\telse\n\t\t\tmCornerY = mHeight;\n\t\tif ((mCornerX == 0 && mCornerY == mHeight) || (mCornerX == mWidth && mCornerY == 0))\n\t\t\tmIsRTandLB = true;\n\t\telse\n\t\t\tmIsRTandLB = false;\n\t}\n\n\tpublic boolean doTouchEvent(MotionEvent event) {\n\t\tif (event.getAction() == MotionEvent.ACTION_MOVE) {\n\t\t\tmTouch.x = event.getX();\n\t\t\tmTouch.y = event.getY();\n\t\t\tthis.postInvalidate();\n\t\t}\n\t\tif (event.getAction() == MotionEvent.ACTION_DOWN) {\n\t\t\tmTouch.x = event.getX();\n\t\t\tmTouch.y = event.getY();\n\t\t\t// calcCornerXY(mTouch.x, mTouch.y);\n\t\t\t// this.postInvalidate();\n\t\t}\n\t\tif (event.getAction() == MotionEvent.ACTION_UP) {\n\t\t\tif (canDragOver()) {\n\t\t\t\tstartAnimation(1200);\n\t\t\t} else {\n\t\t\t\tmTouch.x = mCornerX - 0.09f;\n\t\t\t\tmTouch.y = mCornerY - 0.09f;\n\t\t\t}\n\n\t\t\tthis.postInvalidate();\n\t\t}\n\t\t// return super.onTouchEvent(event);\n\t\treturn true;\n\t}\n\n\t/** 求解直线P1P2和直线P3P4的交点坐标 */\n\tpublic PointF getCross(PointF P1, PointF P2, PointF P3, PointF P4) {\n\t\tPointF CrossP = new PointF();\n\t\t// 二元函数通式： y=ax+b\n\t\tfloat a1 = (P2.y - P1.y) / (P2.x - P1.x);\n\t\tfloat b1 = ((P1.x * P2.y) - (P2.x * P1.y)) / (P1.x - P2.x);\n\n\t\tfloat a2 = (P4.y - P3.y) / (P4.x - P3.x);\n\t\tfloat b2 = ((P3.x * P4.y) - (P4.x * P3.y)) / (P3.x - P4.x);\n\t\tCrossP.x = (b2 - b1) / (a1 - a2);\n\t\tCrossP.y = a1 * CrossP.x + b1;\n\t\treturn CrossP;\n\t}\n\n\tprivate void calcPoints() {\n\t\tmMiddleX = (mTouch.x + mCornerX) / 2;\n\t\tmMiddleY = (mTouch.y + mCornerY) / 2;\n\t\tmBezierControl1.x = mMiddleX - (mCornerY - mMiddleY) * (mCornerY - mMiddleY) / (mCornerX - mMiddleX);\n\t\tmBezierControl1.y = mCornerY;\n\t\tmBezierControl2.x = mCornerX;\n\t\tmBezierControl2.y = mMiddleY - (mCornerX - mMiddleX) * (mCornerX - mMiddleX) / (mCornerY - mMiddleY);\n\n\t\tmBezierStart1.x = mBezierControl1.x - (mCornerX - mBezierControl1.x) / 2;\n\t\tmBezierStart1.y = mCornerY;\n\n\t\t// 当mBezierStart1.x < 0或者mBezierStart1.x > 480时\n\t\t// 如果继续翻页，会出现BUG故在此限制\n\t\tif (mTouch.x > 0 && mTouch.x < mWidth) {\n\t\t\tif (mBezierStart1.x < 0 || mBezierStart1.x > mWidth) {\n\t\t\t\tif (mBezierStart1.x < 0)\n\t\t\t\t\tmBezierStart1.x = mWidth - mBezierStart1.x;\n\n\t\t\t\tfloat f1 = Math.abs(mCornerX - mTouch.x);\n\t\t\t\tfloat f2 = mWidth * f1 / mBezierStart1.x;\n\t\t\t\tmTouch.x = Math.abs(mCornerX - f2);\n\n\t\t\t\tfloat f3 = Math.abs(mCornerX - mTouch.x)\n\t\t\t\t\t\t* Math.abs(mCornerY - mTouch.y) / f1;\n\t\t\t\tmTouch.y = Math.abs(mCornerY - f3);\n\n\t\t\t\tmMiddleX = (mTouch.x + mCornerX) / 2;\n\t\t\t\tmMiddleY = (mTouch.y + mCornerY) / 2;\n\n\t\t\t\tmBezierControl1.x = mMiddleX - (mCornerY - mMiddleY) * (mCornerY - mMiddleY) / (mCornerX - mMiddleX);\n\t\t\t\tmBezierControl1.y = mCornerY;\n\n\t\t\t\tmBezierControl2.x = mCornerX;\n\t\t\t\tmBezierControl2.y = mMiddleY - (mCornerX - mMiddleX) * (mCornerX - mMiddleX) / (mCornerY - mMiddleY);\n\t\t\t\tmBezierStart1.x = mBezierControl1.x - (mCornerX - mBezierControl1.x) / 2;\n\t\t\t}\n\t\t}\n\t\tmBezierStart2.x = mCornerX;\n\t\tmBezierStart2.y = mBezierControl2.y - (mCornerY - mBezierControl2.y) / 2;\n\n\t\tmTouchToCornerDis = (float) Math.hypot((mTouch.x - mCornerX), (mTouch.y - mCornerY));\n\n\t\tmBezierEnd1 = getCross(mTouch, mBezierControl1, mBezierStart1, mBezierStart2);\n\t\tmBezierEnd2 = getCross(mTouch, mBezierControl2, mBezierStart1, mBezierStart2);\n\n\t\t/*\n\t\t * mBeziervertex1.x 推导\n\t\t * ((mBezierStart1.x+mBezierEnd1.x)/2+mBezierControl1.x)/2 化简等价于\n\t\t * (mBezierStart1.x+ 2*mBezierControl1.x+mBezierEnd1.x) / 4\n\t\t */\n\t\tmBeziervertex1.x = (mBezierStart1.x + 2 * mBezierControl1.x + mBezierEnd1.x) / 4;\n\t\tmBeziervertex1.y = (2 * mBezierControl1.y + mBezierStart1.y + mBezierEnd1.y) / 4;\n\t\tmBeziervertex2.x = (mBezierStart2.x + 2 * mBezierControl2.x + mBezierEnd2.x) / 4;\n\t\tmBeziervertex2.y = (2 * mBezierControl2.y + mBezierStart2.y + mBezierEnd2.y) / 4;\n\t}\n\n\tprivate void drawCurrentPageArea(Canvas canvas, Bitmap bitmap, Path path) {\n\t\tmPath0.reset();\n\t\tmPath0.moveTo(mBezierStart1.x, mBezierStart1.y);\n\t\tmPath0.quadTo(mBezierControl1.x, mBezierControl1.y, mBezierEnd1.x, mBezierEnd1.y);\n\t\tmPath0.lineTo(mTouch.x, mTouch.y);\n\t\tmPath0.lineTo(mBezierEnd2.x, mBezierEnd2.y);\n\t\tmPath0.quadTo(mBezierControl2.x, mBezierControl2.y, mBezierStart2.x, mBezierStart2.y);\n\t\tmPath0.lineTo(mCornerX, mCornerY);\n\t\tmPath0.close();\n\n\t\tcanvas.save();\n\t\tcanvas.clipPath(path, Region.Op.XOR);\n\t\tcanvas.drawBitmap(bitmap, 0, 0, null);\n\t\tcanvas.restore();\n\t}\n\n\tprivate void drawNextPageAreaAndShadow(Canvas canvas, Bitmap bitmap) {\n\t\tmPath1.reset();\n\t\tmPath1.moveTo(mBezierStart1.x, mBezierStart1.y);\n\t\tmPath1.lineTo(mBeziervertex1.x, mBeziervertex1.y);\n\t\tmPath1.lineTo(mBeziervertex2.x, mBeziervertex2.y);\n\t\tmPath1.lineTo(mBezierStart2.x, mBezierStart2.y);\n\t\tmPath1.lineTo(mCornerX, mCornerY);\n\t\tmPath1.close();\n\n\t\tmDegrees = (float) Math.toDegrees(Math.atan2(mBezierControl1.x - mCornerX, mBezierControl2.y - mCornerY));\n\t\tint leftx;\n\t\tint rightx;\n\t\tGradientDrawable mBackShadowDrawable;\n\t\tif (mIsRTandLB) {\n\t\t\tleftx = (int) (mBezierStart1.x);\n\t\t\trightx = (int) (mBezierStart1.x + mTouchToCornerDis / 4);\n\t\t\tmBackShadowDrawable = mBackShadowDrawableLR;\n\t\t} else {\n\t\t\tleftx = (int) (mBezierStart1.x - mTouchToCornerDis / 4);\n\t\t\trightx = (int) mBezierStart1.x;\n\t\t\tmBackShadowDrawable = mBackShadowDrawableRL;\n\t\t}\n\t\tcanvas.save();\n\t\tcanvas.clipPath(mPath0);\n\t\tcanvas.clipPath(mPath1, Region.Op.INTERSECT);\n\t\tcanvas.drawBitmap(bitmap, 0, 0, null);\n\t\tcanvas.rotate(mDegrees, mBezierStart1.x, mBezierStart1.y);\n\t\tmBackShadowDrawable.setBounds(leftx, (int) mBezierStart1.y, rightx, (int) (mMaxLength + mBezierStart1.y));\n\t\tmBackShadowDrawable.draw(canvas);\n\t\tcanvas.restore();\n\t}\n\n\tpublic void setBitmaps(Bitmap bm1, Bitmap bm2) {\n\t\tmCurPageBitmap = bm1;\n\t\tmNextPageBitmap = bm2;\n\t}\n\n\tpublic void setScreen(int w, int h) {\n\t\tmWidth = w;\n\t\tmHeight = h;\n\t}\n\n\t@Override\n\tprotected void onDraw(Canvas canvas) {\n\t\tcanvas.drawColor(0xFFAAAAAA);\n\t\tcalcPoints();\n\t\tdrawCurrentPageArea(canvas, mCurPageBitmap, mPath0);\n\t\tdrawNextPageAreaAndShadow(canvas, mNextPageBitmap);\n\t\tdrawCurrentPageShadow(canvas);\n\t\tdrawCurrentBackArea(canvas, mCurPageBitmap);\n\t}\n\n\t/** 创建阴影的GradientDrawable */\n\tprivate void createDrawable() {\n\t\tint[] color = { 0x333333, 0xb0333333 };\n\t\tmFolderShadowDrawableRL = new GradientDrawable(GradientDrawable.Orientation.RIGHT_LEFT, color);\n\t\tmFolderShadowDrawableRL.setGradientType(GradientDrawable.LINEAR_GRADIENT);\n\n\t\tmFolderShadowDrawableLR = new GradientDrawable(GradientDrawable.Orientation.LEFT_RIGHT, color);\n\t\tmFolderShadowDrawableLR.setGradientType(GradientDrawable.LINEAR_GRADIENT);\n\n\t\tmBackShadowColors = new int[] { 0xff111111, 0x111111 };\n\t\tmBackShadowDrawableRL = new GradientDrawable(GradientDrawable.Orientation.RIGHT_LEFT, mBackShadowColors);\n\t\tmBackShadowDrawableRL.setGradientType(GradientDrawable.LINEAR_GRADIENT);\n\n\t\tmBackShadowDrawableLR = new GradientDrawable(GradientDrawable.Orientation.LEFT_RIGHT, mBackShadowColors);\n\t\tmBackShadowDrawableLR.setGradientType(GradientDrawable.LINEAR_GRADIENT);\n\n\t\tmFrontShadowColors = new int[] { 0x80111111, 0x111111 };\n\t\tmFrontShadowDrawableVLR = new GradientDrawable(GradientDrawable.Orientation.LEFT_RIGHT, mFrontShadowColors);\n\t\tmFrontShadowDrawableVLR.setGradientType(GradientDrawable.LINEAR_GRADIENT);\n\t\tmFrontShadowDrawableVRL = new GradientDrawable(GradientDrawable.Orientation.RIGHT_LEFT, mFrontShadowColors);\n\t\tmFrontShadowDrawableVRL.setGradientType(GradientDrawable.LINEAR_GRADIENT);\n\n\t\tmFrontShadowDrawableHTB = new GradientDrawable(GradientDrawable.Orientation.TOP_BOTTOM, mFrontShadowColors);\n\t\tmFrontShadowDrawableHTB.setGradientType(GradientDrawable.LINEAR_GRADIENT);\n\n\t\tmFrontShadowDrawableHBT = new GradientDrawable(GradientDrawable.Orientation.BOTTOM_TOP, mFrontShadowColors);\n\t\tmFrontShadowDrawableHBT.setGradientType(GradientDrawable.LINEAR_GRADIENT);\n\t}\n\n\t/** 绘制翻起页的阴影 */\n\tpublic void drawCurrentPageShadow(Canvas canvas) {\n\t\tdouble degree;\n\t\tif (mIsRTandLB) {\n\t\t\tdegree = Math.PI / 4 - Math.atan2(mBezierControl1.y - mTouch.y, mTouch.x - mBezierControl1.x);\n\t\t} else {\n\t\t\tdegree = Math.PI / 4 - Math.atan2(mTouch.y - mBezierControl1.y, mTouch.x - mBezierControl1.x);\n\t\t}\n\t\t// 翻起页阴影顶点与touch点的距离\n\t\tdouble d1 = (float) 25 * 1.414 * Math.cos(degree);\n\t\tdouble d2 = (float) 25 * 1.414 * Math.sin(degree);\n\t\tfloat x = (float) (mTouch.x + d1);\n\t\tfloat y;\n\t\tif (mIsRTandLB) {\n\t\t\ty = (float) (mTouch.y + d2);\n\t\t} else {\n\t\t\ty = (float) (mTouch.y - d2);\n\t\t}\n\t\tmPath1.reset();\n\t\tmPath1.moveTo(x, y);\n\t\tmPath1.lineTo(mTouch.x, mTouch.y);\n\t\tmPath1.lineTo(mBezierControl1.x, mBezierControl1.y);\n\t\tmPath1.lineTo(mBezierStart1.x, mBezierStart1.y);\n\t\tmPath1.close();\n\t\tfloat rotateDegrees;\n\t\tcanvas.save();\n\n\t\tcanvas.clipPath(mPath0, Region.Op.XOR);\n\t\tcanvas.clipPath(mPath1, Region.Op.INTERSECT);\n\t\tint leftx;\n\t\tint rightx;\n\t\tGradientDrawable mCurrentPageShadow;\n\t\tif (mIsRTandLB) {\n\t\t\tleftx = (int) (mBezierControl1.x);\n\t\t\trightx = (int) mBezierControl1.x + 25;\n\t\t\tmCurrentPageShadow = mFrontShadowDrawableVLR;\n\t\t} else {\n\t\t\tleftx = (int) (mBezierControl1.x - 25);\n\t\t\trightx = (int) mBezierControl1.x + 1;\n\t\t\tmCurrentPageShadow = mFrontShadowDrawableVRL;\n\t\t}\n\n\t\trotateDegrees = (float) Math.toDegrees(Math.atan2(mTouch.x - mBezierControl1.x, mBezierControl1.y - mTouch.y));\n\t\tcanvas.rotate(rotateDegrees, mBezierControl1.x, mBezierControl1.y);\n\t\tmCurrentPageShadow.setBounds(leftx, (int) (mBezierControl1.y - mMaxLength), rightx, (int) (mBezierControl1.y));\n\t\tmCurrentPageShadow.draw(canvas);\n\t\tcanvas.restore();\n\n\t\tmPath1.reset();\n\t\tmPath1.moveTo(x, y);\n\t\tmPath1.lineTo(mTouch.x, mTouch.y);\n\t\tmPath1.lineTo(mBezierControl2.x, mBezierControl2.y);\n\t\tmPath1.lineTo(mBezierStart2.x, mBezierStart2.y);\n\t\tmPath1.close();\n\t\tcanvas.save();\n\t\tcanvas.clipPath(mPath0, Region.Op.XOR);\n\t\tcanvas.clipPath(mPath1, Region.Op.INTERSECT);\n\t\tif (mIsRTandLB) {\n\t\t\tleftx = (int) (mBezierControl2.y);\n\t\t\trightx = (int) (mBezierControl2.y + 25);\n\t\t\tmCurrentPageShadow = mFrontShadowDrawableHTB;\n\t\t} else {\n\t\t\tleftx = (int) (mBezierControl2.y - 25);\n\t\t\trightx = (int) (mBezierControl2.y + 1);\n\t\t\tmCurrentPageShadow = mFrontShadowDrawableHBT;\n\t\t}\n\t\trotateDegrees = (float) Math.toDegrees(Math.atan2(mBezierControl2.y - mTouch.y, mBezierControl2.x - mTouch.x));\n\t\tcanvas.rotate(rotateDegrees, mBezierControl2.x, mBezierControl2.y);\n\t\tfloat temp;\n\t\tif (mBezierControl2.y < 0)\n\t\t\ttemp = mBezierControl2.y - mHeight;\n\t\telse\n\t\t\ttemp = mBezierControl2.y;\n\n\t\tint hmg = (int) Math.hypot(mBezierControl2.x, temp);\n\t\tif (hmg > mMaxLength)\n\t\t\tmCurrentPageShadow.setBounds((int) (mBezierControl2.x - 25) - hmg, leftx, (int) (mBezierControl2.x + mMaxLength) - hmg, rightx);\n\t\telse\n\t\t\tmCurrentPageShadow.setBounds((int) (mBezierControl2.x - mMaxLength), leftx, (int) (mBezierControl2.x), rightx);\n\n\t\tmCurrentPageShadow.draw(canvas);\n\t\tcanvas.restore();\n\t}\n\n\t/** 绘制翻起页背面 */\n\tprivate void drawCurrentBackArea(Canvas canvas, Bitmap bitmap) {\n\t\tint i = (int) (mBezierStart1.x + mBezierControl1.x) / 2;\n\t\tfloat f1 = Math.abs(i - mBezierControl1.x);\n\t\tint i1 = (int) (mBezierStart2.y + mBezierControl2.y) / 2;\n\t\tfloat f2 = Math.abs(i1 - mBezierControl2.y);\n\t\tfloat f3 = Math.min(f1, f2);\n\t\tmPath1.reset();\n\t\tmPath1.moveTo(mBeziervertex2.x, mBeziervertex2.y);\n\t\tmPath1.lineTo(mBeziervertex1.x, mBeziervertex1.y);\n\t\tmPath1.lineTo(mBezierEnd1.x, mBezierEnd1.y);\n\t\tmPath1.lineTo(mTouch.x, mTouch.y);\n\t\tmPath1.lineTo(mBezierEnd2.x, mBezierEnd2.y);\n\t\tmPath1.close();\n\t\tGradientDrawable mFolderShadowDrawable;\n\t\tint left;\n\t\tint right;\n\t\tif (mIsRTandLB) {\n\t\t\tleft = (int) (mBezierStart1.x - 1);\n\t\t\tright = (int) (mBezierStart1.x + f3 + 1);\n\t\t\tmFolderShadowDrawable = mFolderShadowDrawableLR;\n\t\t} else {\n\t\t\tleft = (int) (mBezierStart1.x - f3 - 1);\n\t\t\tright = (int) (mBezierStart1.x + 1);\n\t\t\tmFolderShadowDrawable = mFolderShadowDrawableRL;\n\t\t}\n\t\tcanvas.save();\n\t\tcanvas.clipPath(mPath0);\n\t\tcanvas.clipPath(mPath1, Region.Op.INTERSECT);\n\n\t\tmPaint.setColorFilter(mColorMatrixFilter);\n\n\t\tfloat dis = (float) Math.hypot(mCornerX - mBezierControl1.x, mBezierControl2.y - mCornerY);\n\t\tfloat f8 = (mCornerX - mBezierControl1.x) / dis;\n\t\tfloat f9 = (mBezierControl2.y - mCornerY) / dis;\n\t\tmMatrixArray[0] = 1 - 2 * f9 * f9;\n\t\tmMatrixArray[1] = 2 * f8 * f9;\n\t\tmMatrixArray[3] = mMatrixArray[1];\n\t\tmMatrixArray[4] = 1 - 2 * f8 * f8;\n\t\tmMatrix.reset();\n\t\tmMatrix.setValues(mMatrixArray);\n\t\tmMatrix.preTranslate(-mBezierControl1.x, -mBezierControl1.y);\n\t\tmMatrix.postTranslate(mBezierControl1.x, mBezierControl1.y);\n\t\tcanvas.drawBitmap(bitmap, mMatrix, mPaint);\n\t\t//canvas.drawBitmap(bitmap, mMatrix, null);\n\t\tmPaint.setColorFilter(null);\n\t\tcanvas.rotate(mDegrees, mBezierStart1.x, mBezierStart1.y);\n\t\tmFolderShadowDrawable.setBounds(left, (int) mBezierStart1.y, right, (int) (mBezierStart1.y + mMaxLength));\n\t\tmFolderShadowDrawable.draw(canvas);\n\t\tcanvas.restore();\n\t}\n\n\tpublic void computeScroll() {\n\t\tsuper.computeScroll();\n\t\tif (mScroller.computeScrollOffset()) {\n\t\t\tfloat x = mScroller.getCurrX();\n\t\t\tfloat y = mScroller.getCurrY();\n\t\t\tmTouch.x = x;\n\t\t\tmTouch.y = y;\n\t\t\tpostInvalidate();\n\t\t}\n\t}\n\n\tprivate void startAnimation(int delayMillis) {\n\t\tint dx, dy; // dx 水平方向滑动的距离，负值会使滚动向左滚动 dy 垂直方向滑动的距离，负值会使滚动向上滚动\n\t\tif (mCornerX > 0) {\n\t\t\tdx = -(int) (mWidth + mTouch.x);\n\t\t} else {\n\t\t\tdx = (int) (mWidth - mTouch.x + mWidth);\n\t\t}\n\t\tif (mCornerY > 0) {\n\t\t\tdy = (int) (mHeight - mTouch.y);\n\t\t} else {\n\t\t\tdy = (int) (1 - mTouch.y); // 防止mTouch.y最终变为0\n\t\t}\n\t\tmScroller.startScroll((int) mTouch.x, (int) mTouch.y, dx, dy, delayMillis);\n\t}\n\n\tpublic void abortAnimation() {\n\t\tif (!mScroller.isFinished()) {\n\t\t\tmScroller.abortAnimation();\n\t\t}\n\t}\n\n\tpublic boolean canDragOver() {\n\t\tif (mTouchToCornerDis > mWidth / 10)\n\t\t\treturn true;\n\t\treturn false;\n\t}\n\n\t/** 是否从左边翻向右边 */\n\tpublic boolean DragToRight() {\n\t\tif (mCornerX > 0)\n\t\t\treturn false;\n\t\treturn true;\n\t}\n\n}\n"
},
{
"path": "src/com/example/bezierCurve/PagerFactory.java",
"content": "package com.example.bezierCurve;\n\nimport android.content.Context;\nimport android.graphics.Bitmap;\nimport android.graphics.Canvas;\nimport android.graphics.Paint;\nimport android.graphics.Paint.Align;\n\n\npublic class PagerFactory {\n\tprivate Context mContext;\n\tprivate Bitmap m_book_bg = null;\n\n\tprivate int m_backColor = 0xffff9e85; \t// 背景颜色\n\n\tprivate boolean m_isfirstPage,m_islastPage;\n\n\tprivate Paint mPaint;\n\n\tpublic PagerFactory(Context context) {\n\t\tmContext = context;\n\t\tmPaint = new Paint(Paint.ANTI_ALIAS_FLAG);\n\t\tmPaint.setTextAlign(Align.LEFT);\n\t\tmPaint.setColor(m_backColor);\n\t}\n\n\tpublic void onDraw(Canvas c) {\n\t\tif (m_book_bg == null)\n\t\t\tc.drawColor(m_backColor);\n\t\telse\n\t\t\tc.drawBitmap(m_book_bg, 0, 0, null);\n\t}\n\n\tpublic void onDraw(Canvas c, Bitmap bitmap){\n\t\tc.drawBitmap(bitmap, 0, 0, null);\n\t}\n\n\n\tpublic void setBgBitmap(Bitmap BG) {\n\t\tm_book_bg = BG;\n\t}\n}\n"
}
]