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footsafety/app/src/main/java/com/printer/sdk/serial/ImagePrintable.kt 1.55 KB
f7a13682   “wangming”   项目初始化
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  package com.printer.sdk.serial
  
  import android.content.res.Resources
  import android.graphics.Bitmap
  import android.graphics.BitmapFactory
  import com.printer.sdk.serial.Printable
  
  data class ImagePrintable private constructor(val image: Bitmap,
                                                val alignment: Byte,
                                                val newLinesAfter: Int) : Printable {
  
      override fun getPrintableByteArray(printer: Printer): List<ByteArray> {
          val operations = mutableListOf(
              printer.justificationCommand.plus(alignment),
              printer.printingImagesHelper.getBitmapAsByteArray(image)
          )
  
          if (newLinesAfter > 0) {
              operations.add(printer.feedLineCommand.plus(newLinesAfter.toByte()))
          }
  
          return operations
      }
  
      class Builder() {
          private var alignment: Byte = DefaultPrinter.ALIGNMENT_LEFT
          private var newLinesAfter = 0
          private lateinit var image: Bitmap
  
          constructor(src: Int, resources: Resources) : this() {
              image = BitmapFactory.decodeResource(resources, src)
          }
  
          constructor(image: Bitmap) : this() {
              this.image = image
          }
  
          fun setAlignment(alignment: Byte): Builder {
              this.alignment = alignment
              return this
          }
  
          fun setNewLinesAfter(lines: Int): Builder {
              this.newLinesAfter = lines
              return this
          }
  
          fun build(): ImagePrintable {
              return ImagePrintable(image, alignment, newLinesAfter)
          }
      }
  
  }