Mon 21 Jul 22:43:21 CEST 2025

js/ui/mxgraph/src/js/view/mxTemporaryCellStates.js

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+/**
+ * Copyright (c) 2006-2015, JGraph Ltd
+ * Copyright (c) 2006-2015, Gaudenz Alder
+ */
+/**
+ * Class: mxTemporaryCellStates
+ *
+ * Extends <mxPoint> to implement a 2-dimensional rectangle with double
+ * precision coordinates.
+ * 
+ * Constructor: mxRectangle
+ *
+ * Constructs a new rectangle for the optional parameters. If no parameters
+ * are given then the respective default values are used.
+ */
+function mxTemporaryCellStates(view, scale, cells, isCellVisibleFn)
+{
+	scale = (scale != null) ? scale : 1;
+	this.view = view;
+	
+	// Stores the previous state
+	this.oldValidateCellState = view.validateCellState;
+	this.oldBounds = view.getGraphBounds();
+	this.oldStates = view.getStates();
+	this.oldScale = view.getScale();
+	
+	// Overrides validateCellState to ignore invisible cells
+	var self = this;
+	
+	view.validateCellState = function(cell, resurse)
+	{
+		if (cell == null || isCellVisibleFn == null || isCellVisibleFn(cell))
+		{
+			return self.oldValidateCellState.apply(view, arguments);
+		}
+		
+		return null;
+	};
+	
+	// Creates space for new states
+	view.setStates(new mxDictionary());
+	view.setScale(scale);
+	
+	if (cells != null)
+	{
+		view.resetValidationState();
+		var bbox = null;
+
+		// Validates the vertices and edges without adding them to
+		// the model so that the original cells are not modified
+		for (var i = 0; i < cells.length; i++)
+		{
+			var bounds = view.getBoundingBox(view.validateCellState(view.validateCell(cells[i])));
+			
+			if (bbox == null)
+			{
+				bbox = bounds;
+			}
+			else
+			{
+				bbox.add(bounds);
+			}
+		}
+
+		view.setGraphBounds(bbox || new mxRectangle());
+	}
+};
+
+/**
+ * Variable: view
+ *
+ * Holds the width of the rectangle. Default is 0.
+ */
+mxTemporaryCellStates.prototype.view = null;
+
+/**
+ * Variable: oldStates
+ *
+ * Holds the height of the rectangle. Default is 0.
+ */
+mxTemporaryCellStates.prototype.oldStates = null;
+
+/**
+ * Variable: oldBounds
+ *
+ * Holds the height of the rectangle. Default is 0.
+ */
+mxTemporaryCellStates.prototype.oldBounds = null;
+
+/**
+ * Variable: oldScale
+ *
+ * Holds the height of the rectangle. Default is 0.
+ */
+mxTemporaryCellStates.prototype.oldScale = null;
+
+/**
+ * Function: destroy
+ * 
+ * Returns the top, left corner as a new <mxPoint>.
+ */
+mxTemporaryCellStates.prototype.destroy = function()
+{
+	this.view.setScale(this.oldScale);
+	this.view.setStates(this.oldStates);
+	this.view.setGraphBounds(this.oldBounds);
+	this.view.validateCellState = this.oldValidateCellState;
+};