Gradient 渐变颜色

注意：背景颜色必须设置透明 Gradient 才会生效

background-color: transparent;

数据结构

export interface QTGradient {
  type?: QTGradientType
  shape?: QTGradientShape
  orientation?: QTGradientOrientation
  colors: Array<string>
  gradientRadius?: number
  cornerRadius?: number
  cornerRadii4?: Array<number>
  cornerRadii8?: Array<number>
}

export enum QTGradientOrientation {
  QT_GRADIENT_ORIENTATION_TOP_BOTTOM = 0,
  QT_GRADIENT_ORIENTATION_TR_BL = 1,
  QT_GRADIENT_ORIENTATION_RIGHT_LEFT = 2,
  QT_GRADIENT_ORIENTATION_BR_TL = 3,
  QT_GRADIENT_ORIENTATION_BOTTOM_TOP = 4,
  QT_GRADIENT_ORIENTATION_BL_TR = 5,
  QT_GRADIENT_ORIENTATION_LEFT_RIGHT = 6,
  QT_GRADIENT_ORIENTATION_TL_BR = 7,
}

export enum QTGradientShape {
  QT_GRADIENT_SHAPE_RECTANGLE = 0,
  QT_GRADIENT_SHAPE_OVAL = 1,
  QT_GRADIENT_SHAPE_LINE = 2,
  QT_GRADIENT_SHAPE_RING = 3,
}

export enum QTGradientType {
  QT_GRADIENT_TYPE_LINEAR_GRADIENT = 0,
  QT_GRADIENT_TYPE_RADIAL_GRADIENT = 1,
  QT_GRADIENT_TYPE_SWEEP_GRADIENT = 2,
}