feat: 后端全量更新 - 含所有本次需求

- Contract.php: 返回合约账户余额(balance_contract) - My.php: 地址管理增加BTC/ETH - AppContract.php: 一键平仓(closeall) - AppProxy.php: 代理专属注册链接 + 分级权限(L1/L2) - site.php: 手续费减半(0.018→0.009) - agent_permission_setup.sql: 代理权限SQL - crypto_news_crawler.py: 新闻自动采集脚本
2026-03-30 20:16:32 +08:00
commit 1b24994e74
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+/*
+*  Copyright (C) 1998-2020 by Northwoods Software Corporation. All Rights Reserved.
+*/
+
+/*
+* This is an extension and not part of the main GoJS library.
+* Note that the API for this class may change with any version, even point releases.
+* If you intend to use an extension in production, you should copy the code to your own source directory.
+* Extensions can be found in the GoJS kit under the extensions or extensionsTS folders.
+* See the Extensions intro page (https://gojs.net/latest/intro/extensions.html) for more information.
+*/
+
+import * as go from '../release/go.js';
+
+/**
+ * The LinkLabelOnPathDraggingTool class lets the user move a label on a {@link Link} while keeping the label on the link's path.
+ * This tool only works when the Link has a label marked by the "_isLinkLabel" property.
+ *
+ * If you want to experiment with this extension, try the <a href="../../extensionsTS/LinkLabelOnPathDragging.html">Link Label On Path Dragging</a> sample.
+ * @category Tool Extension
+ */
+export class LinkLabelOnPathDraggingTool extends go.Tool {
+  /**
+   * The label being dragged.
+   */
+  public label: go.GraphObject | null = null;
+  private _originalFraction: number = 0.0;
+
+  /**
+   * Constructs a LinkLabelOnPathDraggingTool and sets the name for the tool.
+   */
+  constructor() {
+    super();
+    this.name = 'LinkLabelOnPathDragging';
+  }
+
+  /**
+   * From the GraphObject at the mouse point, search up the visual tree until we get to
+   * an object that has the "_isLinkLabel" property set to true and that is an immediate child of a Link Panel.
+   * @return {GraphObject} This returns null if no such label is at the mouse down point.
+   */
+  public findLabel(): go.GraphObject | null {
+    const diagram = this.diagram;
+    const e = diagram.lastInput;
+    let elt = diagram.findObjectAt(e.documentPoint, null, null);
+
+    if (elt === null || !(elt.part instanceof go.Link)) return null;
+    while (elt !== null && elt.panel !== elt.part) {
+      elt = elt.panel;
+    }
+    // If it's not marked as "_isLinkLabel", don't consider it a label:
+    if (!(elt as any)['_isLinkLabel']) return null;
+    return elt;
+  }
+
+  /**
+   * This tool can only start if the mouse has moved enough so that it is not a click,
+   * and if the mouse down point is on a GraphObject "label" in a Link Panel,
+   * as determined by {@link #findLabel}.
+   */
+  public canStart(): boolean {
+    if (!super.canStart()) return false;
+    const diagram = this.diagram;
+    // require left button & that it has moved far enough away from the mouse down point, so it isn't a click
+    const e = diagram.lastInput;
+    if (!e.left) return false;
+    if (!this.isBeyondDragSize()) return false;
+
+    return this.findLabel() !== null;
+  }
+
+  /**
+   * Start a transaction, call findLabel and remember it as the "label" property,
+   * and remember the original values for the label's segment properties.
+   */
+  public doActivate(): void {
+    this.startTransaction('Shifted Label');
+    this.label = this.findLabel();
+    if (this.label !== null) {
+      this._originalFraction = this.label.segmentFraction;
+    }
+    super.doActivate();
+  }
+
+  /**
+   * Stop any ongoing transaction.
+   */
+  public doDeactivate(): void {
+    super.doDeactivate();
+    this.stopTransaction();
+  }
+
+  /**
+   * Clear any reference to a label element.
+   */
+  public doStop(): void {
+    this.label = null;
+    super.doStop();
+  }
+
+  /**
+   * Restore the label's original value for GraphObject.segment... properties.
+   */
+  public doCancel(): void {
+    if (this.label !== null) {
+      this.label.segmentFraction = this._originalFraction;
+    }
+    super.doCancel();
+  }
+
+  /**
+   * During the drag, call {@link #updateSegmentOffset} in order to set the segment... properties of the label.
+   */
+  public doMouseMove(): void {
+    if (!this.isActive) return;
+    this.updateSegmentOffset();
+  }
+
+  /**
+   * At the end of the drag, update the segment properties of the label and finish the tool,
+   * completing a transaction.
+   */
+  public doMouseUp(): void {
+    if (!this.isActive) return;
+    this.updateSegmentOffset();
+    this.transactionResult = 'Shifted Label';
+    this.stopTool();
+  }
+
+  /**
+   * Save the label's {@link GraphObject#segmentFraction}
+   * at the closest point to the mouse.
+   */
+  public updateSegmentOffset(): void {
+    const lab = this.label;
+    if (lab === null) return;
+    const link = lab.part;
+    if (!(link instanceof go.Link) || link.path === null) return;
+
+    const last = this.diagram.lastInput.documentPoint;
+    // find the fractional distance along the link path closest to this point
+    const path = link.path;
+    if (path.geometry === null) return;
+    const localpt = path.getLocalPoint(last);
+    lab.segmentFraction = path.geometry.getFractionForPoint(localpt);
+  }
+}