Initial commit
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{
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"Logging": {
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"LogLevel": {
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"Default": "Information",
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"Microsoft.AspNetCore": "Warning"
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}
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}
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}
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// SVG Monitor JavaScript Module for RobotMonitor
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// Handles mouse events for zoom and pan (simplified version of svgEditor.js)
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let svgElement = null;
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let dotNetRef = null;
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let isInitialized = false;
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/**
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* Initialize the SVG monitor with event listeners
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* @param {SVGElement} svg - The SVG element
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* @param {DotNetObjectReference} dotNet - Reference to Blazor component
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*/
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export function initMonitor(svg, dotNet) {
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svgElement = svg;
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dotNetRef = dotNet;
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if (!svgElement || !dotNetRef) {
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console.error('SVG Monitor: Invalid initialization parameters');
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return;
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}
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// Mouse events (only zoom and pan)
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svgElement.addEventListener('mousemove', handleMouseMove);
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svgElement.addEventListener('mousedown', handleMouseDown);
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svgElement.addEventListener('mouseup', handleMouseUp);
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svgElement.addEventListener('wheel', handleWheel, { passive: false });
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svgElement.addEventListener('contextmenu', handleContextMenu);
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// Prevent default drag behavior
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svgElement.addEventListener('dragstart', (e) => e.preventDefault());
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isInitialized = true;
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console.log('SVG Monitor initialized');
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}
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/**
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* Dispose the monitor and remove event listeners
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*/
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export function disposeMonitor() {
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if (svgElement) {
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svgElement.removeEventListener('mousemove', handleMouseMove);
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svgElement.removeEventListener('mousedown', handleMouseDown);
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svgElement.removeEventListener('mouseup', handleMouseUp);
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svgElement.removeEventListener('wheel', handleWheel);
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svgElement.removeEventListener('contextmenu', handleContextMenu);
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}
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svgElement = null;
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dotNetRef = null;
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isInitialized = false;
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console.log('SVG Monitor disposed');
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}
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/**
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* Convert screen coordinates to SVG coordinates
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* @param {number} screenX - Screen X coordinate
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* @param {number} screenY - Screen Y coordinate
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* @returns {{x: number, y: number}} SVG coordinates
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*/
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function screenToSvg(screenX, screenY) {
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if (!svgElement) return { x: 0, y: 0 };
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const pt = svgElement.createSVGPoint();
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pt.x = screenX;
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pt.y = screenY;
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const ctm = svgElement.getScreenCTM();
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if (!ctm) return { x: 0, y: 0 };
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const svgPt = pt.matrixTransform(ctm.inverse());
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return { x: svgPt.x, y: svgPt.y };
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}
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/**
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* Export screenToSvg for use from Blazor
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* @param {number} screenX - Screen X coordinate
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* @param {number} screenY - Screen Y coordinate
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* @returns {number[]} SVG coordinates as [x, y]
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*/
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export function screenToSvgArray(screenX, screenY) {
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const coords = screenToSvg(screenX, screenY);
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return [coords.x, coords.y];
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}
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/**
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* Handle mouse move event
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* @param {MouseEvent} e
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*/
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function handleMouseMove(e) {
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if (!dotNetRef) return;
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const svgCoords = screenToSvg(e.clientX, e.clientY);
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// Pass SVG coordinates and screen coordinates for panning
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dotNetRef.invokeMethodAsync('OnMouseMove', svgCoords.x, svgCoords.y, e.clientX, e.clientY);
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}
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/**
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* Handle mouse down event
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* @param {MouseEvent} e
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*/
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function handleMouseDown(e) {
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if (!dotNetRef) return;
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const svgCoords = screenToSvg(e.clientX, e.clientY);
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// Middle mouse button (button 1) - start pan
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// Also pass screen coordinates for incremental pan calculation
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dotNetRef.invokeMethodAsync('OnMouseDown', svgCoords.x, svgCoords.y, e.button, e.clientX, e.clientY);
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}
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/**
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* Handle mouse up event
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* @param {MouseEvent} e
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*/
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function handleMouseUp(e) {
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if (!dotNetRef) return;
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const svgCoords = screenToSvg(e.clientX, e.clientY);
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dotNetRef.invokeMethodAsync('OnMouseUp', svgCoords.x, svgCoords.y, e.button);
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}
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/**
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* Handle mouse wheel event (zoom)
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* @param {WheelEvent} e
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*/
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function handleWheel(e) {
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if (!dotNetRef) return;
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e.preventDefault();
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const svgCoords = screenToSvg(e.clientX, e.clientY);
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dotNetRef.invokeMethodAsync('OnWheel', svgCoords.x, svgCoords.y, e.deltaY);
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}
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/**
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* Handle context menu (right click)
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* @param {MouseEvent} e
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*/
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function handleContextMenu(e) {
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// Prevent default context menu
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e.preventDefault();
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}
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