gedoor
4 years ago
parent
10f52f3d2a
commit
7f949035aa
@ -0,0 +1,68 @@ |
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package io.legado.app.ui.widget.dialog |
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import android.os.Bundle |
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import android.util.DisplayMetrics |
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import android.view.LayoutInflater |
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import android.view.View |
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import android.view.ViewGroup |
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import androidx.fragment.app.FragmentManager |
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import io.legado.app.R |
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import io.legado.app.base.BaseDialogFragment |
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import io.legado.app.service.help.ReadBook |
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import io.legado.app.ui.book.read.page.provider.ImageProvider |
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import kotlinx.android.synthetic.main.dialog_photo_view.* |
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class PhotoDialog : BaseDialogFragment() { |
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companion object { |
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fun show( |
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fragmentManager: FragmentManager, |
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chapterIndex: Int, |
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src: String |
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) { |
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PhotoDialog().apply { |
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val bundle = Bundle() |
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bundle.putInt("chapterIndex", chapterIndex) |
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bundle.putString("src", src) |
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arguments = bundle |
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}.show(fragmentManager, "photoDialog") |
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} |
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} |
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override fun onStart() { |
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super.onStart() |
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val dm = DisplayMetrics() |
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activity?.windowManager?.defaultDisplay?.getMetrics(dm) |
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dialog?.window?.setLayout( |
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ViewGroup.LayoutParams.MATCH_PARENT, |
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ViewGroup.LayoutParams.MATCH_PARENT |
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) |
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} |
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override fun onCreateView( |
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inflater: LayoutInflater, |
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container: ViewGroup?, |
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savedInstanceState: Bundle? |
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): View? { |
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return inflater.inflate(R.layout.dialog_photo_view, container) |
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} |
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override fun onFragmentCreated(view: View, savedInstanceState: Bundle?) { |
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arguments?.let { |
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val chapterIndex = it.getInt("chapterIndex") |
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val src = it.getString("src") |
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ReadBook.book?.let { book -> |
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src?.let { |
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ImageProvider.getImage(book, chapterIndex, src)?.let { bitmap -> |
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photo_view.setImageBitmap(bitmap) |
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} |
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} |
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} |
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} |
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} |
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} |
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@ -0,0 +1,48 @@ |
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package io.legado.app.ui.widget.image.photo |
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import android.graphics.PointF |
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import android.graphics.RectF |
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import android.widget.ImageView |
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class Info( |
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rect: RectF, |
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img: RectF, |
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widget: RectF, |
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base: RectF, |
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screenCenter: PointF, |
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scale: Float, |
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degrees: Float, |
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scaleType: ImageView.ScaleType? |
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) { |
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// 内部图片在整个手机界面的位置 |
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var mRect = RectF() |
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// 控件在窗口的位置 |
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var mImgRect = RectF() |
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var mWidgetRect = RectF() |
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var mBaseRect = RectF() |
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var mScreenCenter = PointF() |
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var mScale = 0f |
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var mDegrees = 0f |
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var mScaleType: ImageView.ScaleType? = null |
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init { |
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mRect.set(rect) |
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mImgRect.set(img) |
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mWidgetRect.set(widget) |
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mScale = scale |
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mScaleType = scaleType |
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mDegrees = degrees |
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mBaseRect.set(base) |
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mScreenCenter.set(screenCenter) |
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} |
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} |
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@ -0,0 +1,56 @@ |
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package io.legado.app.ui.widget.image.photo |
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import android.view.MotionEvent |
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import kotlin.math.abs |
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import kotlin.math.atan |
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class RotateGestureDetector(l: OnRotateListener) { |
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private val MAX_DEGREES_STEP = 120 |
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private val mListener: OnRotateListener? = null |
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private var mPrevSlope = 0f |
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private var mCurrSlope = 0f |
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private val x1 = 0f |
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private val y1 = 0f |
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private val x2 = 0f |
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private val y2 = 0f |
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fun onTouchEvent(event: MotionEvent) { |
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when (event.actionMasked) { |
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MotionEvent.ACTION_POINTER_DOWN, |
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MotionEvent.ACTION_POINTER_UP -> { |
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if (event.pointerCount == 2) mPrevSlope = caculateSlope(event) |
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} |
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MotionEvent.ACTION_MOVE -> if (event.pointerCount > 1) { |
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mCurrSlope = caculateSlope(event) |
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val currDegrees = Math.toDegrees(atan(mCurrSlope.toDouble())); |
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val prevDegrees = Math.toDegrees(atan(mPrevSlope.toDouble())); |
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val deltaSlope = currDegrees - prevDegrees; |
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if (abs(deltaSlope) <= MAX_DEGREES_STEP) { |
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mListener?.onRotate(deltaSlope.toFloat(), (x2 + x1) / 2, (y2 + y1) / 2); |
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} |
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mPrevSlope = mCurrSlope; |
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} |
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} |
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} |
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private fun caculateSlope(event: MotionEvent): Float { |
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val x1 = event.getX(0); |
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val y1 = event.getY(0); |
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val x2 = event.getX(1); |
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val y2 = event.getY(1); |
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return (y2 - y1) / (x2 - x1); |
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} |
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} |
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interface OnRotateListener { |
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fun onRotate(degrees: Float, focusX: Float, focusY: Float) |
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} |
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@ -0,0 +1,15 @@ |
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<?xml version="1.0" encoding="utf-8"?> |
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<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" |
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android:layout_width="match_parent" |
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android:layout_height="match_parent" |
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android:background="@color/background"> |
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<io.legado.app.ui.widget.image.PhotoView |
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android:id="@+id/photo_view" |
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android:layout_width="match_parent" |
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android:layout_height="match_parent" |
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android:scaleType="centerInside" /> |
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</androidx.constraintlayout.widget.ConstraintLayout> |
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