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@ -1,19 +1,17 @@ |
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package io.legado.app.ui.widget.page |
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import android.content.Context |
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import android.graphics.Bitmap |
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import android.graphics.Canvas |
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import android.graphics.Rect |
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import android.graphics.* |
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import android.graphics.drawable.GradientDrawable |
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import android.util.AttributeSet |
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import android.util.Log |
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import android.view.MotionEvent |
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import android.view.View |
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import android.widget.FrameLayout |
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import androidx.appcompat.widget.AppCompatTextView |
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import io.legado.app.R |
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import io.legado.app.utils.dp |
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import io.legado.app.utils.screenshot |
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import kotlin.math.abs |
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import kotlinx.android.synthetic.main.view_book_page.view.* |
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import org.jetbrains.anko.backgroundColor |
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import org.jetbrains.anko.horizontalPadding |
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class PageView(context: Context, attrs: AttributeSet) : FrameLayout(context, attrs) { |
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@ -22,33 +20,98 @@ class PageView(context: Context, attrs: AttributeSet) : FrameLayout(context, att |
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private var downX: Float = 0.toFloat() |
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private var offset: Float = 0.toFloat() |
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private val srcRect: Rect = Rect() |
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private val destRect: Rect = Rect() |
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private val shadowDrawable: GradientDrawable |
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private val shadowDrawableR: GradientDrawable |
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private val shadowDrawableL: GradientDrawable |
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private val bitmapMatrix = Matrix() |
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private var cover: Boolean = true |
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init { |
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val shadowColors = intArrayOf(0x66111111, 0x00000000) |
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shadowDrawable = GradientDrawable( |
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shadowDrawableR = GradientDrawable( |
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GradientDrawable.Orientation.LEFT_RIGHT, shadowColors |
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) |
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shadowDrawable.gradientType = GradientDrawable.LINEAR_GRADIENT |
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shadowDrawableR.gradientType = GradientDrawable.LINEAR_GRADIENT |
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shadowDrawableL = GradientDrawable( |
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GradientDrawable.Orientation.RIGHT_LEFT, shadowColors |
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) |
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shadowDrawableL.gradientType = GradientDrawable.LINEAR_GRADIENT |
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inflate(context, R.layout.view_book_page, this) |
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setWillNotDraw(false) |
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page_panel.backgroundColor = Color.WHITE |
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page_panel.horizontalPadding = 16.dp |
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inflate(context, R.layout.page_view, this) |
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} |
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override fun onDraw(canvas: Canvas?) { |
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canvas?.save() |
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super.onDraw(canvas) |
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canvas?.restore() |
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override fun dispatchDraw(canvas: Canvas?) { |
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super.dispatchDraw(canvas) |
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bitmap?.let { |
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val dx = if (offset > 0) offset - width else offset + width |
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bitmapMatrix.setTranslate(dx, 0.toFloat()) |
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canvas?.drawBitmap(it, bitmapMatrix, null) |
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if (cover) { |
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addShadow(dx.toInt(), canvas) |
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} |
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} |
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} |
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private fun addShadow(left: Int, canvas: Canvas?) { |
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canvas?.let { |
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if (left < 0) { |
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shadowDrawableR.setBounds(left + width, 0, left+ width + 30, height) |
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shadowDrawableR.draw(it) |
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} else { |
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shadowDrawableL.setBounds(left - 30, 0, left, height) |
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shadowDrawableL.draw(it) |
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} |
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} |
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} |
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override fun onTouchEvent(event: MotionEvent?): Boolean { |
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when (event?.action) { |
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MotionEvent.ACTION_DOWN -> { |
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bitmap = page_panel.screenshot() |
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downX = event.x |
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offset = 0.toFloat() |
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if (!cover) { |
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page_panel.translationX = 0.toFloat() |
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} |
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invalidate() |
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} |
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MotionEvent.ACTION_MOVE -> { |
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offset = event.x - downX |
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if (!cover) { |
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page_panel.translationX = offset |
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} |
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invalidate() |
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} |
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MotionEvent.ACTION_UP -> { |
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bitmap = null |
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if (!cover) { |
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page_panel.translationX = 0.toFloat() |
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} |
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invalidate() |
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} |
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} |
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return true |
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} |
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fun setTranslate(translationX: Float, translationY: Float) { |
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page_panel.translationX = translationX |
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page_panel.translationY = translationY |
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} |
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fun setPageFactory(factory: PageFactory<*>) { |
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} |
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Administrator
5 years ago