134 lines
2.9 KiB
JavaScript
134 lines
2.9 KiB
JavaScript
/**
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* Copyright (c) 2006-2017, JGraph Ltd
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* Copyright (c) 2006-2017, Gaudenz Alder
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*/
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/**
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* Class: mxTemporaryCellStates
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*
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* Creates a temporary set of cell states.
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*/
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function mxTemporaryCellStates(view, scale, cells, isCellVisibleFn, getLinkForCellState)
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{
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scale = (scale != null) ? scale : 1;
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this.view = view;
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// Stores the previous state
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this.oldValidateCellState = view.validateCellState;
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this.oldBounds = view.getGraphBounds();
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this.oldStates = view.getStates();
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this.oldScale = view.getScale();
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this.oldDoRedrawShape = view.graph.cellRenderer.doRedrawShape;
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var self = this;
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// Overrides doRedrawShape and paint shape to add links on shapes
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if (getLinkForCellState != null)
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{
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view.graph.cellRenderer.doRedrawShape = function(state)
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{
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var oldPaint = state.shape.paint;
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state.shape.paint = function(c)
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{
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var link = getLinkForCellState(state);
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if (link != null)
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{
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c.setLink(link);
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}
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oldPaint.apply(this, arguments);
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if (link != null)
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{
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c.setLink(null);
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}
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};
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self.oldDoRedrawShape.apply(view.graph.cellRenderer, arguments);
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state.shape.paint = oldPaint;
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};
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}
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// Overrides validateCellState to ignore invisible cells
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view.validateCellState = function(cell, resurse)
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{
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if (cell == null || isCellVisibleFn == null || isCellVisibleFn(cell))
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{
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return self.oldValidateCellState.apply(view, arguments);
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}
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return null;
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};
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// Creates space for new states
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view.setStates(new mxDictionary());
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view.setScale(scale);
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if (cells != null)
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{
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view.resetValidationState();
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var bbox = null;
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// Validates the vertices and edges without adding them to
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// the model so that the original cells are not modified
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for (var i = 0; i < cells.length; i++)
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{
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var bounds = view.getBoundingBox(view.validateCellState(view.validateCell(cells[i])));
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if (bbox == null)
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{
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bbox = bounds;
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}
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else
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{
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bbox.add(bounds);
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}
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}
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view.setGraphBounds(bbox || new mxRectangle());
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}
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};
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/**
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* Variable: view
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*
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* Holds the width of the rectangle. Default is 0.
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*/
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mxTemporaryCellStates.prototype.view = null;
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/**
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* Variable: oldStates
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*
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* Holds the height of the rectangle. Default is 0.
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*/
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mxTemporaryCellStates.prototype.oldStates = null;
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/**
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* Variable: oldBounds
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*
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* Holds the height of the rectangle. Default is 0.
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*/
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mxTemporaryCellStates.prototype.oldBounds = null;
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/**
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* Variable: oldScale
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*
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* Holds the height of the rectangle. Default is 0.
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*/
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mxTemporaryCellStates.prototype.oldScale = null;
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/**
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* Function: destroy
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*
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* Returns the top, left corner as a new <mxPoint>.
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*/
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mxTemporaryCellStates.prototype.destroy = function()
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{
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this.view.setScale(this.oldScale);
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this.view.setStates(this.oldStates);
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this.view.setGraphBounds(this.oldBounds);
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this.view.validateCellState = this.oldValidateCellState;
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this.view.graph.cellRenderer.doRedrawShape = this.oldDoRedrawShape;
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};
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