ytpm-ClassAffairsAssistant/commons/basic/src/main/ets/styles/AttributeModifier.ets

import StyleConstants from '../constants/StyleConstants'

export class BackgroundPageModifier implements AttributeModifier<CommonAttribute> {
  isNeedImage: boolean
  isNeedPaddingTop: boolean
  isNeedPaddingBottom: boolean

  constructor(isNeedImage: boolean, isNeedPaddingTop: boolean = true, isNeedPaddingBottom: boolean = true) {
    this.isNeedImage = isNeedImage
    this.isNeedPaddingTop = isNeedPaddingTop
    this.isNeedPaddingBottom = isNeedPaddingBottom
  }

  applyNormalAttribute(instance: CommonAttribute): void {
    if (this.isNeedImage) {
      instance
        .height(StyleConstants.FULL_PARENT)
        .width(StyleConstants.FULL_PARENT)
        .backgroundColor($r("app.color.theme_bg_color"))
        // .backgroundImage($r("app.media.bgPage"))
        .backgroundImageSize({ width: '100%', height: '100%' })//backgroundImageSize((ImageSize.Cover))
        .backgroundImagePosition(Alignment.Center)
        .padding({
          top: this.isNeedPaddingTop ? StyleConstants.TOP_HEIGHT : 0,
          bottom: this.isNeedPaddingBottom ? StyleConstants.BOTTOM_HEIGHT : 0,
          left: 10,
          right: 10
        })
    } else {
      instance
        .height(StyleConstants.FULL_PARENT)
        .width(StyleConstants.FULL_PARENT)
        .backgroundColor($r("app.color.theme_bg_color"))
        .padding({
          top: this.isNeedPaddingTop ? StyleConstants.TOP_HEIGHT : 0,
          bottom: this.isNeedPaddingBottom ? StyleConstants.BOTTOM_HEIGHT : 0,
          left: 10,
          right: 10
        })
    }
  }
}