pull/1615/head
kunfei
3 years ago
parent
a02e0c746a
commit
a0b25dce29
@ -0,0 +1,323 @@ |
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package io.legado.app.ui.widget.text |
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import android.content.Context |
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import android.graphics.Canvas |
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import android.graphics.Color |
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import android.graphics.Paint |
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import android.graphics.Path |
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import android.util.AttributeSet |
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import android.util.TypedValue |
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import android.view.View |
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import io.legado.app.R |
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import io.legado.app.lib.theme.accentColor |
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@Suppress("unused", "PrivatePropertyName") |
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class BevelLabelView @JvmOverloads constructor( |
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context: Context, |
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attrs: AttributeSet? = null |
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) : View(context, attrs) { |
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private val MODE_LEFT_TOP = 0 |
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private val MODE_RIGHT_TOP = 1 |
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private val MODE_LEFT_BOTTOM = 2 |
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private val MODE_RIGHT_BOTTOM = 3 |
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private val MODE_LEFT_TOP_FILL = 4 |
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private val MODE_RIGHT_TOP_FILL = 5 |
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private val MODE_LEFT_BOTTOM_FILL = 6 |
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private val MODE_RIGHT_BOTTOM_FILL = 7 |
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private var mBgColor: Int |
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private var mText: String |
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private var mTextSize: Int |
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private var mTextColor: Int |
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private var mLength: Int |
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private var mCorner: Int |
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private var mMode: Int |
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private var mPaint: Paint = Paint(Paint.ANTI_ALIAS_FLAG) |
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private var path: Path = Path() |
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private var mWidth = 0 |
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private var mHeight: Int = 0 |
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private var mRotate = 45 //因为默认模式是1，所以这时是45度 |
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private var mX: Int = 0 |
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private var mY: Int = 0 |
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init { |
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val typedArray = context.obtainStyledAttributes(attrs, R.styleable.BevelLabelView) |
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mBgColor = typedArray.getColor( |
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R.styleable.BevelLabelView_label_bg_color, |
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context.accentColor |
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) //默认红色 |
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mText = typedArray.getString(R.styleable.BevelLabelView_label_text) ?: "" |
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mTextSize = |
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typedArray.getDimensionPixelOffset( |
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R.styleable.BevelLabelView_label_text_size, |
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sp2px(11) |
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) |
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mTextColor = typedArray.getColor(R.styleable.BevelLabelView_label_text_color, Color.WHITE) |
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mLength = |
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typedArray.getDimensionPixelOffset(R.styleable.BevelLabelView_label_length, dip2px(40)) |
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mCorner = typedArray.getDimensionPixelOffset(R.styleable.BevelLabelView_label_corner, 0) |
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mMode = typedArray.getInt(R.styleable.BevelLabelView_label_mode, 1) |
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mPaint.isAntiAlias = true |
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typedArray.recycle() |
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} |
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override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) { |
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super.onMeasure(widthMeasureSpec, heightMeasureSpec) |
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mWidth = MeasureSpec.getSize(widthMeasureSpec) |
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mHeight = mWidth |
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} |
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override fun onDraw(canvas: Canvas) { |
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mPaint.color = mBgColor |
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drawBackgroundText(canvas) |
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} |
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private fun drawBackgroundText(canvas: Canvas) { |
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check(mWidth == mHeight) { |
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"width must equal to height" //标签view 是一个正方形， |
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} |
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when (mMode) { |
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MODE_LEFT_TOP -> { |
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mCorner = 0 //没有铺满的时候mCorner要归零； |
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leftTopMeasure() |
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getLeftTop() |
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} |
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MODE_RIGHT_TOP -> { |
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mCorner = 0 |
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rightTopMeasure() |
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getRightTop() |
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} |
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MODE_LEFT_BOTTOM -> { |
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mCorner = 0 |
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leftBottomMeasure() |
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getLeftBottom() |
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} |
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MODE_RIGHT_BOTTOM -> { |
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mCorner = 0 |
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rightBottomMeasure() |
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getRightBottom() |
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} |
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MODE_LEFT_TOP_FILL -> { |
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leftTopMeasure() |
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getLeftTopFill() |
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if (mCorner != 0) { |
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canvas.drawPath(path, mPaint) |
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getLeftTop() |
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} |
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} |
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MODE_RIGHT_TOP_FILL -> { |
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rightTopMeasure() |
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getRightTopFill() |
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if (mCorner != 0) { |
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canvas.drawPath(path, mPaint) |
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getRightTop() |
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} |
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} |
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MODE_LEFT_BOTTOM_FILL -> { |
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leftBottomMeasure() |
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getLeftBottomFill() |
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if (mCorner != 0) { |
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canvas.drawPath(path, mPaint) |
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getLeftBottom() |
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} |
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} |
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MODE_RIGHT_BOTTOM_FILL -> { |
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rightBottomMeasure() |
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getRightBottomFill() |
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if (mCorner != 0) { |
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canvas.drawPath(path, mPaint) |
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getRightBottom() |
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} |
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} |
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else -> {} |
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} |
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canvas.drawPath(path, mPaint) |
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mPaint.textSize = mTextSize.toFloat() |
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mPaint.textAlign = Paint.Align.CENTER |
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mPaint.color = mTextColor |
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canvas.translate(mX.toFloat(), mY.toFloat()) |
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canvas.rotate(mRotate.toFloat()) |
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val baseLineY = (-(mPaint.descent() + mPaint.ascent())).toInt() / 2 //基线中间点的y轴计算公式 |
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canvas.drawText(mText, 0f, baseLineY.toFloat(), mPaint) |
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} |
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private fun rightBottomMeasure() { |
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mRotate = -45 |
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mX = mWidth / 2 + mLength / 4 |
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mY = mX |
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} |
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private fun leftBottomMeasure() { |
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mRotate = 45 |
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mX = mWidth / 2 - mLength / 4 |
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mY = mHeight / 2 + mLength / 4 |
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} |
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private fun rightTopMeasure() { |
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mRotate = 45 |
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mX = mWidth / 2 + mLength / 4 |
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mY = mHeight / 2 - mLength / 4 |
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} |
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private fun leftTopMeasure() { |
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mRotate = -45 |
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mX = mWidth / 2 - mLength / 4 |
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mY = mX |
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} |
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//左上角铺满 |
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private fun getLeftTopFill() { |
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if (mCorner != 0) { |
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path.addRoundRect( |
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0f, |
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0f, |
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(mWidth / 2).toFloat(), |
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(mHeight / 2).toFloat(), |
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floatArrayOf(mCorner.toFloat(), mCorner.toFloat(), 0f, 0f, 0f, 0f, 0f, 0f), |
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Path.Direction.CW |
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) |
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} else { |
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path.moveTo(0f, 0f) |
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path.lineTo(mWidth.toFloat(), 0f) |
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path.lineTo(0f, mHeight.toFloat()) |
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path.close() |
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} |
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} |
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//左上角不铺满 |
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private fun getLeftTop() { |
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path.moveTo(if (mCorner != 0) mCorner.toFloat() else (mWidth - mLength).toFloat(), 0f) |
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path.lineTo(mWidth.toFloat(), 0f) |
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path.lineTo(0f, mHeight.toFloat()) |
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path.lineTo(0f, if (mCorner != 0) mCorner.toFloat() else (mHeight - mLength).toFloat()) |
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path.close() |
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} |
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//左下角铺满 |
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private fun getLeftBottomFill() { |
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if (mCorner != 0) { |
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path.addRoundRect( |
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0f, |
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(mHeight / 2).toFloat(), |
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(mWidth / 2).toFloat(), |
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mHeight.toFloat(), |
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floatArrayOf(0f, 0f, 0f, 0f, 0f, 0f, mCorner.toFloat(), mCorner.toFloat()), |
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Path.Direction.CW |
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) |
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} else { |
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path.moveTo(0f, 0f) |
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path.lineTo(mWidth.toFloat(), mHeight.toFloat()) |
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path.lineTo(0f, mHeight.toFloat()) |
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path.close() |
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} |
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} |
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//左下角不铺满 |
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private fun getLeftBottom() { |
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path.moveTo(0f, 0f) |
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path.lineTo(mWidth.toFloat(), mHeight.toFloat()) |
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path.lineTo( |
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if (mCorner != 0) mCorner.toFloat() else (mWidth - mLength).toFloat(), |
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mHeight.toFloat() |
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) |
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path.lineTo(0f, if (mCorner != 0) (mHeight - mCorner).toFloat() else mLength.toFloat()) |
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path.close() |
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} |
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//右上角铺满 |
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private fun getRightTopFill() { |
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if (mCorner != 0) { |
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path.addRoundRect( |
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(mWidth / 2).toFloat(), |
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0f, |
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mWidth.toFloat(), |
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(mHeight / 2).toFloat(), |
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floatArrayOf(0f, 0f, mCorner.toFloat(), mCorner.toFloat(), 0f, 0f, 0f, 0f), |
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Path.Direction.CW |
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) |
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} else { |
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path.moveTo(0f, 0f) |
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path.lineTo(mWidth.toFloat(), 0f) |
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path.lineTo(mWidth.toFloat(), mHeight.toFloat()) |
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path.close() |
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} |
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} |
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//右上角不铺满 |
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private fun getRightTop() { |
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path.moveTo(0f, 0f) |
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path.lineTo(if (mCorner != 0) (mWidth - mCorner).toFloat() else mLength.toFloat(), 0f) |
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path.lineTo( |
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mWidth.toFloat(), |
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if (mCorner != 0) mCorner.toFloat() else (mHeight - mLength).toFloat() |
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) |
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path.lineTo(mWidth.toFloat(), mHeight.toFloat()) |
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path.close() |
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} |
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//右下角铺满 |
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private fun getRightBottomFill() { |
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if (mCorner != 0) { |
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path.addRoundRect( |
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(mWidth / 2).toFloat(), |
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(mHeight / 2).toFloat(), |
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mWidth.toFloat(), |
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mHeight.toFloat(), |
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floatArrayOf(0f, 0f, 0f, 0f, mCorner.toFloat(), mCorner.toFloat(), 0f, 0f), |
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Path.Direction.CW |
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) |
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} else { |
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path.moveTo(mWidth.toFloat(), 0f) |
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path.lineTo(mWidth.toFloat(), mHeight.toFloat()) |
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path.lineTo(0f, mHeight.toFloat()) |
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path.close() |
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} |
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} |
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//右下角不铺满 |
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private fun getRightBottom() { |
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path.moveTo(mWidth.toFloat(), 0f) |
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path.lineTo( |
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mWidth.toFloat(), |
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if (mCorner != 0) (mHeight - mCorner).toFloat() else mLength.toFloat() |
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) |
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path.lineTo( |
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if (mCorner != 0) (mWidth - mCorner).toFloat() else mLength.toFloat(), |
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mHeight.toFloat() |
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) |
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path.lineTo(0f, mHeight.toFloat()) |
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path.close() |
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} |
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/** |
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* @param sp 转换大小 |
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*/ |
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@Suppress("SameParameterValue") |
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private fun sp2px(sp: Int): Int { |
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return TypedValue.applyDimension( |
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TypedValue.COMPLEX_UNIT_SP, |
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sp.toFloat(), |
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resources.displayMetrics |
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) |
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.toInt() |
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} |
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/** |
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* @param dip 转换大小 |
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*/ |
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@Suppress("SameParameterValue") |
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private fun dip2px(dip: Int): Int { |
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return TypedValue.applyDimension( |
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TypedValue.COMPLEX_UNIT_DIP, |
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dip.toFloat(), |
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resources.displayMetrics |
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) |
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.toInt() |
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} |
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} |
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