package com.example.smart.ui.icondraw
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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.Point
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import android.graphics.PointF
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import android.graphics.Rect
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import android.graphics.RectF
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import android.util.AttributeSet
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import android.view.MotionEvent
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import android.view.View
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import com.example.basecore.util.ScreenUtil
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import com.example.basecore.util.dp2px
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/**
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* @author: dai hang
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* @data: 2023/12/20 14:34
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* @description:
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*/
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class DrawView @JvmOverloads constructor(
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context: Context,
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attrs: AttributeSet? = null,
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defStyleAttr: Int = 0,
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) : View(context, attrs, defStyleAttr) {
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companion object {
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const val shape_none = "none"
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const val shape_round = "round"
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const val shape_rect = "rect"
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}
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private var list = ArrayList<RectF>()
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private var drawingRect = RectF()
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private var drawShape = shape_rect
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private var strokeWidth = 3
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private val paint: Paint
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private var touchPoint: PointF
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private val movePoint: PointF
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init {
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paint = Paint()
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touchPoint = PointF()
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movePoint = PointF()
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strokeWidth = context.dp2px(3)
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paint.strokeWidth = strokeWidth.toFloat()
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paint.color = Color.RED
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paint.isAntiAlias = true
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paint.style = Paint.Style.STROKE
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}
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fun updateShape(shape: String) {
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drawShape = shape
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invalidate()
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}
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fun isEdit(): Boolean {
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return list.isNotEmpty()
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}
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fun clear() {
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drawShape = shape_none
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drawingRect.setEmpty()
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list.clear()
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invalidate()
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}
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override fun onTouchEvent(event: MotionEvent?): Boolean {
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if (drawShape == shape_none) {
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return super.onTouchEvent(event)
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}
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when (event?.action) {
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MotionEvent.ACTION_DOWN -> {
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touchPoint.x = event.x
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touchPoint.y = event.y
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}
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MotionEvent.ACTION_MOVE -> {
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movePoint.x = event.x
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movePoint.y = event.y
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val startX = touchPoint.x.coerceAtMost(movePoint.x)
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val startY = touchPoint.y.coerceAtMost(movePoint.y)
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val endX = touchPoint.x.coerceAtLeast(movePoint.x)
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val endY = touchPoint.y.coerceAtLeast(movePoint.y)
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drawingRect.set(startX, startY, endX, endY)
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invalidate()
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}
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MotionEvent.ACTION_UP -> {
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list.add(RectF(drawingRect))
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drawingRect.setEmpty()
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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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override fun onDraw(canvas: Canvas) {
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super.onDraw(canvas)
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super.onDraw(canvas)
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for (rect in list) {
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canvas?.drawRect(rect, paint)
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}
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when (drawShape) {
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shape_rect -> {
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if (!drawingRect.isEmpty) {
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canvas?.drawRect(drawingRect, paint)
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}
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}
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shape_round -> {
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}
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else -> {
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}
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}
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}
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// override fun onDraw(canvas: Canvas?) {
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//
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// }
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}
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