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| Original file line number | Diff line number | Diff line change |
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| @@ -1 +1 @@ | ||
| 21.8.2 | ||
| 22.0.0 |
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| Original file line number | Diff line number | Diff line change |
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| /** | ||
| * Copyright (c) 2006-2015, JGraph Ltd | ||
| * Copyright (c) 2006-2015, Gaudenz Alder | ||
| */ | ||
| /** | ||
| * Class: mxCellHighlight | ||
| * | ||
| * A helper class to highlight cells. Here is an example for a given cell. | ||
| * | ||
| * (code) | ||
| * var highlight = new mxCellHighlight(graph, '#ff0000', 2); | ||
| * highlight.highlight(graph.view.getState(cell))); | ||
| * (end) | ||
| * | ||
| * Constructor: mxCellHighlight | ||
| * | ||
| * Constructs a cell highlight. | ||
| */ | ||
| function mxCellHighlight(graph, highlightColor, strokeWidth, dashed) | ||
| { | ||
| if (graph != null) | ||
| { | ||
| this.graph = graph; | ||
| this.highlightColor = (highlightColor != null) ? highlightColor : mxConstants.DEFAULT_VALID_COLOR; | ||
| this.strokeWidth = (strokeWidth != null) ? strokeWidth : mxConstants.HIGHLIGHT_STROKEWIDTH; | ||
| this.dashed = (dashed != null) ? dashed : false; | ||
| this.opacity = mxConstants.HIGHLIGHT_OPACITY; | ||
|
|
||
| // Updates the marker if the graph changes | ||
| this.repaintHandler = mxUtils.bind(this, function() | ||
| { | ||
| // Updates reference to state | ||
| if (this.state != null) | ||
| { | ||
| var tmp = this.graph.view.getState(this.state.cell); | ||
|
|
||
| if (tmp == null) | ||
| { | ||
| this.hide(); | ||
| } | ||
| else | ||
| { | ||
| this.state = tmp; | ||
| this.repaint(); | ||
| } | ||
| } | ||
| }); | ||
|
|
||
| this.graph.getView().addListener(mxEvent.SCALE, this.repaintHandler); | ||
| this.graph.getView().addListener(mxEvent.TRANSLATE, this.repaintHandler); | ||
| this.graph.getView().addListener(mxEvent.SCALE_AND_TRANSLATE, this.repaintHandler); | ||
| this.graph.getModel().addListener(mxEvent.CHANGE, this.repaintHandler); | ||
|
|
||
| // Hides the marker if the current root changes | ||
| this.resetHandler = mxUtils.bind(this, function() | ||
| { | ||
| this.hide(); | ||
| }); | ||
|
|
||
| this.graph.getView().addListener(mxEvent.DOWN, this.resetHandler); | ||
| this.graph.getView().addListener(mxEvent.UP, this.resetHandler); | ||
| } | ||
| }; | ||
|
|
||
| /** | ||
| * Variable: keepOnTop | ||
| * | ||
| * Specifies if the highlights should appear on top of everything | ||
| * else in the overlay pane. Default is false. | ||
| */ | ||
| mxCellHighlight.prototype.keepOnTop = false; | ||
|
|
||
| /** | ||
| * Variable: graph | ||
| * | ||
| * Reference to the enclosing <mxGraph>. | ||
| */ | ||
| mxCellHighlight.prototype.graph = null; | ||
|
|
||
| /** | ||
| * Variable: state | ||
| * | ||
| * Reference to the <mxCellState>. | ||
| */ | ||
| mxCellHighlight.prototype.state = null; | ||
|
|
||
| /** | ||
| * Variable: spacing | ||
| * | ||
| * Specifies the spacing between the highlight for vertices and the vertex. | ||
| * Default is 2. | ||
| */ | ||
| mxCellHighlight.prototype.spacing = 2; | ||
|
|
||
| /** | ||
| * Variable: resetHandler | ||
| * | ||
| * Holds the handler that automatically invokes reset if the highlight | ||
| * should be hidden. | ||
| */ | ||
| mxCellHighlight.prototype.resetHandler = null; | ||
|
|
||
| /** | ||
| * Function: setHighlightColor | ||
| * | ||
| * Sets the color of the rectangle used to highlight drop targets. | ||
| * | ||
| * Parameters: | ||
| * | ||
| * color - String that represents the new highlight color. | ||
| */ | ||
| mxCellHighlight.prototype.setHighlightColor = function(color) | ||
| { | ||
| this.highlightColor = color; | ||
|
|
||
| if (this.shape != null) | ||
| { | ||
| this.shape.stroke = color; | ||
| } | ||
| }; | ||
|
|
||
| /** | ||
| * Function: drawHighlight | ||
| * | ||
| * Creates and returns the highlight shape for the given state. | ||
| */ | ||
| mxCellHighlight.prototype.drawHighlight = function() | ||
| { | ||
| this.shape = this.createShape(); | ||
| this.repaint(); | ||
|
|
||
| if (!this.keepOnTop && this.shape.node.parentNode.firstChild != this.shape.node) | ||
| { | ||
| this.shape.node.parentNode.insertBefore(this.shape.node, this.shape.node.parentNode.firstChild); | ||
| } | ||
| }; | ||
|
|
||
| /** | ||
| * Function: createShape | ||
| * | ||
| * Creates and returns the highlight shape for the given state. | ||
| */ | ||
| mxCellHighlight.prototype.createShape = function() | ||
| { | ||
| var shape = this.graph.cellRenderer.createShape(this.state); | ||
|
|
||
| shape.svgStrokeTolerance = this.graph.tolerance; | ||
| shape.points = this.state.absolutePoints; | ||
| shape.apply(this.state); | ||
| shape.stroke = this.highlightColor; | ||
| shape.opacity = this.opacity; | ||
| shape.isDashed = this.dashed; | ||
| shape.isShadow = false; | ||
|
|
||
| shape.dialect = mxConstants.DIALECT_SVG; | ||
| shape.init(this.graph.getView().getOverlayPane()); | ||
| mxEvent.redirectMouseEvents(shape.node, this.graph, this.state); | ||
|
|
||
| if (this.graph.dialect != mxConstants.DIALECT_SVG) | ||
| { | ||
| shape.pointerEvents = false; | ||
| } | ||
| else | ||
| { | ||
| shape.svgPointerEvents = 'stroke'; | ||
| } | ||
|
|
||
| return shape; | ||
| }; | ||
|
|
||
| /** | ||
| * Function: getStrokeWidth | ||
| * | ||
| * Returns the stroke width. | ||
| */ | ||
| mxCellHighlight.prototype.getStrokeWidth = function(state) | ||
| { | ||
| return this.strokeWidth; | ||
| }; | ||
|
|
||
| /** | ||
| * Function: repaint | ||
| * | ||
| * Updates the highlight after a change of the model or view. | ||
| */ | ||
| mxCellHighlight.prototype.repaint = function() | ||
| { | ||
| if (this.state != null && this.shape != null) | ||
| { | ||
| this.shape.scale = this.state.view.scale; | ||
|
|
||
| if (this.graph.model.isEdge(this.state.cell)) | ||
| { | ||
| this.shape.strokewidth = this.getStrokeWidth(); | ||
| this.shape.points = this.state.absolutePoints; | ||
| this.shape.outline = false; | ||
| } | ||
| else | ||
| { | ||
| this.shape.bounds = new mxRectangle(this.state.x - this.spacing, this.state.y - this.spacing, | ||
| this.state.width + 2 * this.spacing, this.state.height + 2 * this.spacing); | ||
| this.shape.rotation = Number(this.state.style[mxConstants.STYLE_ROTATION] || '0'); | ||
| this.shape.strokewidth = this.getStrokeWidth() / this.state.view.scale; | ||
| this.shape.outline = true; | ||
| } | ||
|
|
||
| // Uses cursor from shape in highlight | ||
| if (this.state.shape != null) | ||
| { | ||
| this.shape.setCursor(this.state.shape.getCursor()); | ||
| } | ||
|
|
||
| this.shape.redraw(); | ||
| } | ||
| }; | ||
|
|
||
| /** | ||
| * Function: hide | ||
| * | ||
| * Resets the state of the cell marker. | ||
| */ | ||
| mxCellHighlight.prototype.hide = function() | ||
| { | ||
| this.highlight(null); | ||
| }; | ||
|
|
||
| /** | ||
| * Function: mark | ||
| * | ||
| * Marks the <markedState> and fires a <mark> event. | ||
| */ | ||
| mxCellHighlight.prototype.highlight = function(state) | ||
| { | ||
| if (this.state != state) | ||
| { | ||
| if (this.shape != null) | ||
| { | ||
| this.shape.destroy(); | ||
| this.shape = null; | ||
| } | ||
|
|
||
| this.state = state; | ||
|
|
||
| if (this.state != null) | ||
| { | ||
| this.drawHighlight(); | ||
| } | ||
| } | ||
| }; | ||
|
|
||
| /** | ||
| * Function: isHighlightAt | ||
| * | ||
| * Returns true if this highlight is at the given position. | ||
| */ | ||
| mxCellHighlight.prototype.isHighlightAt = function(x, y) | ||
| { | ||
| var hit = false; | ||
|
|
||
| // Quirks mode is currently not supported as it used a different coordinate system | ||
| if (this.shape != null && document.elementFromPoint != null) | ||
| { | ||
| var elt = document.elementFromPoint(x, y); | ||
|
|
||
| while (elt != null) | ||
| { | ||
| if (elt == this.shape.node) | ||
| { | ||
| hit = true; | ||
| break; | ||
| } | ||
|
|
||
| elt = elt.parentNode; | ||
| } | ||
| } | ||
|
|
||
| return hit; | ||
| }; | ||
|
|
||
| /** | ||
| * Function: destroy | ||
| * | ||
| * Destroys the handler and all its resources and DOM nodes. | ||
| */ | ||
| mxCellHighlight.prototype.destroy = function() | ||
| { | ||
| this.graph.getView().removeListener(this.resetHandler); | ||
| this.graph.getView().removeListener(this.repaintHandler); | ||
| this.graph.getModel().removeListener(this.repaintHandler); | ||
|
|
||
| if (this.shape != null) | ||
| { | ||
| this.shape.destroy(); | ||
| this.shape = null; | ||
| } | ||
| }; |
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