<divid=Content><divclass="CClass"><divclass=CTopicid=MainTopic><h1class=CTitle><aname="mxGraphHandler"></a>mxGraphHandler</h1><divclass=CBody><p>Graph event handler that handles selection. Individual cells are handled separately using <ahref="mxVertexHandler-js.html#mxVertexHandler"class=LClassid=link76onMouseOver="ShowTip(event, 'tt64', 'link76')"onMouseOut="HideTip('tt64')">mxVertexHandler</a> or one of the edge handlers. These handlers are created using <ahref="../view/mxGraph-js.html#mxGraph.createHandler"class=LFunctionid=link77onMouseOver="ShowTip(event, 'tt65', 'link77')"onMouseOut="HideTip('tt65')">mxGraph.createHandler</a> in <ahref="../view/mxGraphSelectionModel-js.html#mxGraphSelectionModel.cellAdded"class=LFunctionid=link78onMouseOver="ShowTip(event, 'tt66', 'link78')"onMouseOut="HideTip('tt66')">mxGraphSelectionModel.cellAdded</a>.</p><p>To avoid the container to scroll a moved cell into view, set <scrollAfterMove> to false.</p><!--START_ND_SUMMARY--><divclass=Summary><divclass=STitle>Summary</div><divclass=SBorder><tableborder=0cellspacing=0cellpadding=0class=STable><trclass="SMain"><tdclass=SEntry><ahref="#mxGraphHandler">mxGraphHandler</a></td><tdclass=SDescription>Graph event handler that handles selection. </td></tr><trclass="SGroup SIndent1"><tdclass=SEntry><ahref="#mxGraphHandler.Functions">Functions</a></td><tdclass=SDescription></td></tr><trclass="SFunction SIndent2 SMarked"><tdclass=SEntry><ahref="#mxGraphHandler.mxGraphHandler"id=link1onMouseOver="ShowTip(event, 'tt1', 'link1')"onMouseOut="HideTip('tt1')">mxGraphHandler</a></td><tdclass=SDescription>Constructs an event handler that creates handles for the selection cells.</td></tr><trclass="SGroup SIndent1"><tdclass=SEntry><ahref="#mxGraphHandler.Variables">Variables</a></td><tdclass=SDescription></td></tr><trclass="SVariable SIndent2 SMarked"><tdclass=SEntry><ahref="#mxGraphHandler.graph"id=link2onMouseOver="ShowTip(event, 'tt2', 'link2')"onMouseOut="HideTip('tt2')">graph</a></td><tdclass=SDescription>Reference to the enclosing <ahref="../view/mxGraph-js.html#mxGraph"class=LClassid=link3onMouseOver="ShowTip(event, 'tt3', 'link3')"onMouseOut="HideTip('tt3')">mxGraph</a>.</td></tr><trclass="SVariable SIndent2"><tdclass=SEntry><ahref="#mxGraphHandler.maxCells"id=link4onMouseOver="ShowTip(event, 'tt4', 'link4')"onMouseOut="HideTip('tt4')">maxCells</a></td><tdclass=SDescription>Defines the maximum number of cells to paint subhandles for. </td></tr><trclass="SVariable SIndent2 SMarked"><tdclass=SEntry><ahref="#mxGraphHandler.enabled"id=link5onMouseOver="ShowTip(event, 'tt5', 'link5')"onMouseOut="HideTip('tt5')">enabled</a></td><tdclass=SDescription>Specifies if events are handled. </td></tr><trclass="SVariable SIndent2"><tdclass=SEntry><ahref="#mxGraphHandler.highlightEnabled"id=link6onMouseOver="ShowTip(event, 'tt6', 'link6')"onMouseOut="HideTip('tt6')">highlightEnabled</a></td><tdclass=SDescription>Specifies if drop targets under the mouse should be enabled. </td></tr><trclass="SVariable SIndent2 SMarked"><tdclass=SEntry><ahref="#mxGraphHandler.cloneEnabled"id=link7onMouseOver="ShowTip(event, 'tt7', 'link7')"onMouseOut="HideTip('tt7')">cloneEnabled</a></td><tdclass=SDescription>Specifies if cloning by control-drag is enabled. </td></tr><trclass="SVariable SIndent2"><tdclass=SEntry><ahref="#mxGraphHandler.moveEnabled"id=link8onMouseOver="ShowTip(event, 'tt8', 'link8')"onMouseOut="HideTip('tt8')">moveEnabled</a></td><tdclass=SDescription>Specifies if moving is enabled. </td></tr><trclass="SVariable SIndent2 SMarked"><tdclass=SEntry><ahref="#mxGraphHandler.guidesEnabled"id=link9onMouseOver="ShowTip(event, 'tt9', 'link9')"onMouseOut="HideTip('tt9')">guidesEnabled</a></td><tdclass=SDescription>Specifies if other cells should be used for snapping the right, center or left side of the current selection. </td></tr><trclass="SVariable SIndent2"><tdclass=SEntry><ahref="#mxGraphHandler.guide"id=link10onMouseOver="ShowTip(event,'tt10'
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.mxGraphHandler"></a>mxGraphHandler</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>function mxGraphHandler(</td><tdclass=PParameternowrap>graph</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Constructs an event handler that creates handles for the selection cells.</p><h4class=CHeading>Parameters</h4><tableborder=0cellspacing=0cellpadding=0class=CDescriptionList><tr><tdclass=CDLEntry>graph</td><tdclass=CDLDescription>Reference to the enclosing <ahref="../view/mxGraph-js.html#mxGraph"class=LClassid=link79onMouseOver="ShowTip(event, 'tt3', 'link79')"onMouseOut="HideTip('tt3')">mxGraph</a>.</td></tr></table></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.graph"></a>graph</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.graph</td></tr></table></blockquote><p>Reference to the enclosing <ahref="../view/mxGraph-js.html#mxGraph"class=LClassid=link80onMouseOver="ShowTip(event, 'tt3', 'link80')"onMouseOut="HideTip('tt3')">mxGraph</a>.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.maxCells"></a>maxCells</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.maxCells</td></tr></table></blockquote><p>Defines the maximum number of cells to paint subhandles for. Default is 50 for Firefox and 20 for IE. Set this to 0 if you want an unlimited number of handles to be displayed. This is only recommended if the number of cells in the graph is limited to a small number, eg. 500.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.enabled"></a>enabled</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.enabled</td></tr></table></blockquote><p>Specifies if events are handled. Default is true.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.highlightEnabled"></a>highlightEnabled</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.highlightEnabled</td></tr></table></blockquote><p>Specifies if drop targets under the mouse should be enabled. Default is true.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.cloneEnabled"></a>cloneEnabled</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.cloneEnabled</td></tr></table></blockquote><p>Specifies if cloning by control-drag is enabled. Default is true.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.moveEnabled"></a>moveEnabled</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.moveEnabled</td></tr></table></blockquote><p>Specifies if moving is enabled. Default is true.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.guidesEnabled"></a>guidesEnabled</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.guidesEnabled</td></tr></table></blockquote><p>Specifies if other cells should be used for snapping the right, center or left side of the current selection. Default is false.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.guide"></a>guide</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.guide</td></tr></table></blockquote><p>Holds the <ahref="../util/mxGuide-js.html#mxGuide"class=LClassid=link81onMouseOver="ShowTip(event, 'tt11', 'link81')"onMouseOut="HideTip('tt11')">mxGuide</a> instance that is used for alignment.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.currentDx"></a>currentDx</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.currentDx</td></tr></table></blockquote><p>Stores the x-coordinate of the current mouse move.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.currentDy"></a>currentDy</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.currentDy</td></tr></table></blockquote><p>Stores the y-coordinate of the current mouse move.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.updateCursor"></a>updateCursor</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.updateCursor</td></tr></table></blockquote><p>Specifies if a move cursor should be shown if the mouse is ove a movable cell. Default is true.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.selectEnabled"></a>selectEnabled</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.selectEnabled</td></tr></table></blockquote><p>Specifies if selecting is enabled. Default is true.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.removeCellsFromParent"></a>removeCellsFromParent</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.removeCellsFromParent</td></tr></table></blockquote><p>Specifies if cells may be moved out of their parents. Default is true.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.connectOnDrop"></a>connectOnDrop</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.connectOnDrop</td></tr></table></blockquote><p>Specifies if drop events are interpreted as new connections if no other drop action is defined. Default is false.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.scrollOnMove"></a>scrollOnMove</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.scrollOnMove</td></tr></table></blockquote><p>Specifies if the view should be scrolled so that a moved cell is visible. Default is true.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.minimumSize"></a>minimumSize</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.minimumSize</td></tr></table></blockquote><p>Specifies the minimum number of pixels for the width and height of a selection border. Default is 6.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.previewColor"></a>previewColor</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.previewColor</td></tr></table></blockquote><p>Specifies the color of the preview shape. Default is black.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.htmlPreview"></a>htmlPreview</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.htmlPreview</td></tr></table></blockquote><p>Specifies if the graph container should be used for preview. If this is used then drop target detection relies entirely on <ahref="../view/mxGraph-js.html#mxGraph.getCellAt"class=LFunctionid=link82onMouseOver="ShowTip(event, 'tt67', 'link82')"onMouseOut="HideTip('tt67')">mxGraph.getCellAt</a> because the HTML preview does not “let events through”. Default is false.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.shape"></a>shape</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.shape</td></tr></table></blockquote><p>Reference to the <ahref="../shape/mxShape-js.html#mxShape"class=LClassid=link83onMouseOver="ShowTip(event, 'tt23', 'link83')"onMouseOut="HideTip('tt23')">mxShape</a> that represents the preview.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.scaleGrid"></a>scaleGrid</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.scaleGrid</td></tr></table></blockquote><p>Specifies if the grid should be scaled. Default is false.</p></div></div></div>
<divclass="CVariable"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.rotationEnabled"></a>rotationEnabled</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.rotationEnabled</td></tr></table></blockquote><p>Specifies if the bounding box should allow for rotation. Default is true.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.setCloneEnabled"></a>setCloneEnabled</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.setCloneEnabled = function(</td><tdclass=PParameternowrap>value</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Sets <ahref="#mxGraphHandler.cloneEnabled"class=LVariableid=link87onMouseOver="ShowTip(event, 'tt7', 'link87')"onMouseOut="HideTip('tt7')">cloneEnabled</a>.</p><h4class=CHeading>Parameters</h4><tableborder=0cellspacing=0cellpadding=0class=CDescriptionList><tr><tdclass=CDLEntry>value</td><tdclass=CDLDescription>Boolean that specifies the new clone enabled state.</td></tr></table></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.getInitialCellForEvent"></a>getInitialCellForEvent</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.getInitialCellForEvent = function(</td><tdclass=PParameternowrap>me</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Hook to return initial cell for the given event.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.isDelayedSelection"></a>isDelayedSelection</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.isDelayedSelection = function(</td><tdclass=PParameternowrap>cell</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Hook to return true for delayed selections.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.mouseDown"></a>mouseDown</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.mouseDown = function(</td><tdclass=PParameternowrap>sender,</td></tr><tr><td></td><tdclass=PParameternowrap>me</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Handles the event by selecing the given cell and creating a handle for it. By consuming the event all subsequent events of the gesture are redirected to this handler.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.getGuideStates"></a>getGuideStates</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.getGuideStates = function()</td></tr></table></blockquote><p>Creates an array of cell states which should be used as guides.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.getCells"></a>getCells</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.getCells = function(</td><tdclass=PParameternowrap>initialCell</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Returns the cells to be modified by this handler. This implementation returns all selection cells that are movable, or the given initial cell if the given cell is not selected and movable. This handles the case of moving unselectable or unselected cells.</p><h4class=CHeading>Parameters</h4><tableborder=0cellspacing=0cellpadding=0class=CDescriptionList><tr><tdclass=CDLEntry>initialCell</td><tdclass=CDLDescription><ahref="../model/mxCell-js.html#mxCell"class=LClassid=link94onMouseOver="ShowTip(event, 'tt68', 'link94')"onMouseOut="HideTip('tt68')">mxCell</a> that triggered this handler.</td></tr></table></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.getPreviewBounds"></a>getPreviewBounds</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.getPreviewBounds = function(</td><tdclass=PParameternowrap>cells</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Returns the <ahref="../util/mxRectangle-js.html#mxRectangle"class=LClassid=link95onMouseOver="ShowTip(event, 'tt42', 'link95')"onMouseOut="HideTip('tt42')">mxRectangle</a> used as the preview bounds for moving the given cells.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.getBoundingBox"></a>getBoundingBox</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.getBoundingBox = function(</td><tdclass=PParameternowrap>cells</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Returns the <ahref="../util/mxRectangle-js.html#mxRectangle"class=LClassid=link96onMouseOver="ShowTip(event, 'tt42', 'link96')"onMouseOut="HideTip('tt42')">mxRectangle</a> that represents the bounding box for the given cells. If bbox is true then the paint bounding box is returned.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.createPreviewShape"></a>createPreviewShape</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.createPreviewShape = function(</td><tdclass=PParameternowrap>bounds</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Creates the shape used to draw the preview for the given bounds.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.start"></a>start</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.start = function(</td><tdclass=PParameternowrap>cell,</td></tr><tr><td></td><tdclass=PParameternowrap>x,</td></tr><tr><td></td><tdclass=PParameternowrap>y</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Starts the handling of the mouse gesture.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.useGuidesForEvent"></a>useGuidesForEvent</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.useGuidesForEvent = function(</td><tdclass=PParameternowrap>me</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Returns true if the guides should be used for the given <ahref="../util/mxMouseEvent-js.html#mxMouseEvent"class=LClassid=link97onMouseOver="ShowTip(event, 'tt47', 'link97')"onMouseOut="HideTip('tt47')">mxMouseEvent</a>. This implementation returns <ahref="../util/mxGuide-js.html#mxGuide.isEnabledForEvent"class=LFunctionid=link98onMouseOver="ShowTip(event, 'tt69', 'link98')"onMouseOut="HideTip('tt69')">mxGuide.isEnabledForEvent</a>.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.snap"></a>snap</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.snap = function(</td><tdclass=PParameternowrap>vector</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Snaps the given vector to the grid and returns the given mxPoint instance.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.getDelta"></a>getDelta</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.getDelta = function(</td><tdclass=PParameternowrap>me</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Returns an <ahref="../util/mxPoint-js.html#mxPoint"class=LClassid=link99onMouseOver="ShowTip(event, 'tt50', 'link99')"onMouseOut="HideTip('tt50')">mxPoint</a> that represents the vector for moving the cells for the given <ahref="../util/mxMouseEvent-js.html#mxMouseEvent"class=LClassid=link100onMouseOver="ShowTip(event, 'tt47', 'link100')"onMouseOut="HideTip('tt47')">mxMouseEvent</a>.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.updateHint"></a>updateHint</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.updateHint = function(</td><tdclass=PParameternowrap>me</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Hook for subclassers do show details while the handler is active.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.removeHint"></a>removeHint</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.removeHint = function()</td></tr></table></blockquote><p>Hooks for subclassers to hide details when the handler gets inactive.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.roundLength"></a>roundLength</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.roundLength = function(</td><tdclass=PParameternowrap>length</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Hook for rounding the unscaled vector. This uses Math.round.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.mouseMove"></a>mouseMove</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.mouseMove = function(</td><tdclass=PParameternowrap>sender,</td></tr><tr><td></td><tdclass=PParameternowrap>me</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Handles the event by highlighting possible drop targets and updating the preview.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.updatePreviewShape"></a>updatePreviewShape</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.updatePreviewShape = function()</td></tr></table></blockquote><p>Updates the bounds of the preview shape.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.setHighlightColor"></a>setHighlightColor</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.setHighlightColor = function(</td><tdclass=PParameternowrap>color</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Sets the color of the rectangle used to highlight drop targets.</p><h4class=CHeading>Parameters</h4><tableborder=0cellspacing=0cellpadding=0class=CDescriptionList><tr><tdclass=CDLEntry>color</td><tdclass=CDLDescription>String that represents the new highlight color.</td></tr></table></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.mouseUp"></a>mouseUp</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.mouseUp = function(</td><tdclass=PParameternowrap>sender,</td></tr><tr><td></td><tdclass=PParameternowrap>me</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Handles the event by applying the changes to the selection cells.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.selectDelayed"></a>selectDelayed</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.selectDelayed = function(</td><tdclass=PParameternowrap>me</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Implements the delayed selection for the given mouse event.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.reset"></a>reset</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.reset = function()</td></tr></table></blockquote><p>Resets the state of this handler.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.shouldRemoveCellsFromParent"></a>shouldRemoveCellsFromParent</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.shouldRemoveCellsFromParent = function(</td><tdclass=PParameternowrap>parent,</td></tr><tr><td></td><tdclass=PParameternowrap>cells,</td></tr><tr><td></td><tdclass=PParameternowrap>evt</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Returns true if the given cells should be removed from the parent for the specified mousereleased event.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.moveCells"></a>moveCells</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>mxGraphHandler.prototype.moveCells = function(</td><tdclass=PParameternowrap>cells,</td></tr><tr><td></td><tdclass=PParameternowrap>dx,</td></tr><tr><td></td><tdclass=PParameternowrap>dy,</td></tr><tr><td></td><tdclass=PParameternowrap>clone,</td></tr><tr><td></td><tdclass=PParameternowrap>target,</td></tr><tr><td></td><tdclass=PParameternowrap>evt</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote><p>Moves the given cells by the specified amount.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.destroyShapes"></a>destroyShapes</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.destroyShapes = function()</td></tr></table></blockquote><p>Destroy the preview and highlight shapes.</p></div></div></div>
<divclass="CFunction"><divclass=CTopic><h3class=CTitle><aname="mxGraphHandler.destroy"></a>destroy</h3><divclass=CBody><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.destroy = function()</td></tr></table></blockquote><p>Destroys the handler and all its resources and DOM nodes.</p></div></div></div>
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<divclass=CToolTipid="tt1"><divclass=CFunction><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td><tableborder=0cellspacing=0cellpadding=0><tr><tdclass=PBeforeParametersnowrap>function mxGraphHandler(</td><tdclass=PParameternowrap>graph</td><tdclass=PAfterParametersnowrap>)</td></tr></table></td></tr></table></blockquote>Constructs an event handler that creates handles for the selection cells.</div></div><divclass=CToolTipid="tt2"><divclass=CVariable><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.graph</td></tr></table></blockquote>Reference to the enclosing mxGraph.</div></div><divclass=CToolTipid="tt3"><divclass=CClass>Extends mxEventSource to implement a graph component for the browser. </div></div><divclass=CToolTipid="tt4"><divclass=CVariable><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.maxCells</td></tr></table></blockquote>Defines the maximum number of cells to paint subhandles for. </div></div><divclass=CToolTipid="tt5"><divclass=CVariable><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.enabled</td></tr></table></blockquote>Specifies if events are handled. </div></div><divclass=CToolTipid="tt6"><divclass=CVariable><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.highlightEnabled</td></tr></table></blockquote>Specifies if drop targets under the mouse should be enabled. </div></div><divclass=CToolTipid="tt7"><divclass=CVariable><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.cloneEnabled</td></tr></table></blockquote>Specifies if cloning by control-drag is enabled. </div></div><divclass=CToolTipid="tt8"><divclass=CVariable><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.moveEnabled</td></tr></table></blockquote>Specifies if moving is enabled. </div></div><divclass=CToolTipid="tt9"><divclass=CVariable><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.guidesEnabled</td></tr></table></blockquote>Specifies if other cells should be used for snapping the right, center or left side of the current selection. </div></div><divclass=CToolTipid="tt10"><divclass=CVariable><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.guide</td></tr></table></blockquote>Holds the mxGuide instance that is used for alignment.</div></div><divclass=CToolTipid="tt11"><divclass=CClass>Implements the alignment of selection cells to other cells in the graph.</div></div><divclass=CToolTipid="tt12"><divclass=CVariable><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.currentDx</td></tr></table></blockquote>Stores the x-coordinate of the current mouse move.</div></div><divclass=CToolTipid="tt13"><divclass=CVariable><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.currentDy</td></tr></table></blockquote>Stores the y-coordinate of the current mouse move.</div></div><divclass=CToolTipid="tt14"><divclass=CVariable><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.updateCursor</td></tr></table></blockquote>Specifies if a move cursor should be shown if the mouse is ove a movable cell. </div></div><divclass=CToolTipid="tt15"><divclass=CVariable><blockquote><tableborder=0cellspacing=0cellpadding=0class="Prototype prettyprint"><tr><td>mxGraphHandler.prototype.selectEnabled</td></tr></table></blockquote>Specifies if selecting is enabled. </div></div><divclass=CToolTipid="tt16"><divclass=CVariable><b
