SGraphShape.ts 5.1 KB

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  1. /*
  2. * *********************************************************************************************************************
  3. *
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  19. * .:R888888I
  20. * .&888888I Copyright (c) 2009-2020. 博锐尚格科技股份有限公司
  21. * ~8888'
  22. * .!88~ All rights reserved.
  23. *
  24. * *********************************************************************************************************************
  25. */
  26. import { SGraphItem } from "../SGraphItem";
  27. import { SPainter } from "@persagy-web/draw";
  28. import { Style } from "..";
  29. import {
  30. SColor,
  31. SGradient,
  32. SLinearGradient,
  33. SRadialGradient
  34. } from "@persagy-web/draw/lib";
  35. /**
  36. * 图形 item 基类
  37. *
  38. * @author 郝建龙 <haojianlong@sagacloud.cn>
  39. */
  40. export class SGraphShape extends SGraphItem {
  41. /** 当前 item 的风格 */
  42. style: Style | undefined;
  43. /**
  44. * 构造函数
  45. *
  46. * @param parent 父类
  47. * @param style item 各种状态的样式
  48. */
  49. constructor(parent: SGraphItem | null, style?: Style) {
  50. super(parent);
  51. this.style = style;
  52. } // Constructor
  53. /**
  54. * 绘制前设置绘制样式
  55. *
  56. * @return 当前 item 状态值
  57. */
  58. setStyle(): string {
  59. let status = "default";
  60. if (this.style) {
  61. if (this.enabled) {
  62. // 是否选中
  63. if (this.selected) {
  64. status = "selected";
  65. }
  66. } else {
  67. status = "disabled";
  68. }
  69. }
  70. return status;
  71. } // Function setStyle()
  72. /**
  73. * 解析渐变样式
  74. *
  75. * @param str 渐变存储的字符串
  76. * @return 渐变颜色转为的字符串
  77. */
  78. parseFill(str: string): SGradient | undefined {
  79. const index1 = str.indexOf("{");
  80. const index2 = str.indexOf("}");
  81. const temp = str.substring(index1 + 1, index2 - 1);
  82. const dataArr = temp.split(";");
  83. if (str.indexOf("SLinearGradient") > -1) {
  84. try {
  85. // @ts-ignore
  86. const grad = new SLinearGradient(
  87. ...dataArr[0].split(","),
  88. // @ts-ignore
  89. ...dataArr[1].split(",")
  90. );
  91. for (let i = 2; i < dataArr.length; i++) {
  92. const cur = dataArr[i].split(",");
  93. grad.addColorStop(Number(cur[0]), new SColor(cur[1]));
  94. }
  95. return grad;
  96. } catch (e) {
  97. console.log("渐变颜色格式有误", e, str);
  98. }
  99. } else if (str.indexOf("SRadialGradient") > -1) {
  100. try {
  101. // @ts-ignore
  102. const grad = new SRadialGradient(
  103. ...dataArr[0].split(","),
  104. // @ts-ignore
  105. ...dataArr[1].split(",")
  106. );
  107. for (let i = 2; i < dataArr.length; i++) {
  108. const cur = dataArr[i].split(",");
  109. grad.addColorStop(Number(cur[0]), new SColor(cur[1]));
  110. }
  111. return grad;
  112. } catch (e) {
  113. console.log("渐变颜色格式有误", e, str);
  114. }
  115. }
  116. return undefined;
  117. } // parseFill()
  118. /**
  119. * 绘制
  120. *
  121. * @param painter 绘制对象
  122. */
  123. onDraw(painter: SPainter): void {
  124. const status = this.setStyle();
  125. if (this.style && this.style[status]) {
  126. const grad = this.parseFill(this.style[status].fill);
  127. if (grad) {
  128. painter.brush.gradient = grad;
  129. } else {
  130. painter.brush.color = new SColor(this.style[status].fill);
  131. }
  132. painter.pen.color = new SColor(this.style[status].stroke);
  133. painter.pen.lineWidth = this.style[status].lineWidth;
  134. } else {
  135. painter.brush.color = SColor.White;
  136. }
  137. } // Function onDraw()
  138. } // Class SGraphShape()